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New technology for controlling large deformation in soft rock mining roadways based on deep and shallow dense drilling and its engineering application 认领 引用
1
作者 SUN Xiaoming LI Zhihu +2 位作者 ZHANG Yong SHI Fukun MIAO Chengyu 《Journal of Mountain Science》 SCIE CSCD 2026年第6期2948-2965,共18页
This study investigates the control of large deformation in extraction roadways,a critical issue for safe coal mining.While conventional dense drilling offers moderate effectiveness,it provides limited capability for ... This study investigates the control of large deformation in extraction roadways,a critical issue for safe coal mining.While conventional dense drilling offers moderate effectiveness,it provides limited capability for targeted treatment of roof strata at varying depths.To overcome this limitation,an innovative pressure relief technique employing both shallow and deep dense drilling is proposed and applied to the mining roadway of the New Shanghai No.1 Coal Mine,China.Through a synergistic pressure relief mechanism,the method effectively reduces the magnitude and propagation range of front abutment stress ahead of the mining face.Key design parameters—including borehole length,spacing,and angle—were optimized through an integrated approach combining theoretical calculations,numerical simulations,and field validation.Field measurements demonstrate that after implementing this technique,the average stable axial force in roof anchor cables decreased from 173.3 kN to 141.0 kN,representing a reduction of 18.6%.The average support resistance of hydraulic supports#210 and#212 dropped from 34.82 MPa and 29.15 MPa to 22.16 MPa and 14.88 MPa,respectively,corresponding to reductions exceeding 35%.Total cumulative convergence was reduced by more than 40%.These findings confirm the substantial deformation control performance of the proposed method,offering a practical reference for managing large deformations in tunnels under similar geological conditions. 展开更多
关键词 Mining roadway Deep and shallow dense drilling Pressure relief mechanism Large deformation control Engineering application
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Erratum:Bio-inspired Fog Harvesting Fabric Materials:Principle,Fabrication,Engineering Applications and Challenges 认领 引用
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作者 Xueke Yang Sha Li +2 位作者 Xiaobo Wang Xiaoming Qian Songnan Zhang 《Journal of Bionic Engineering》 SCIE EI CSCD 2026年第1期549-549,共1页
The original online version of this article was revised:"The article Bio-inspired Fog Harvesting Fabric Materials:Principle,Fabrication,Engineering Applications and Challenges,written by Xueke Yang,Sha Li,Xiaobo ... The original online version of this article was revised:"The article Bio-inspired Fog Harvesting Fabric Materials:Principle,Fabrication,Engineering Applications and Challenges,written by Xueke Yang,Sha Li,Xiaobo Wang,Xiaoming Qian,and Songnan Zhang,was originally published under exclusive license to Jilin University.Following the authors'decision to opt for retrospective open access,the copyright of the article was changed on 27 April 2025 to©The Authors 2025.The article is now distributed under the terms of the Creative Commons Attribution License(http://gffzzeb6f7f563f66445dho5nu9ccp99cf6pbu.ffgz.tsg.suse.edu.cn/licenses/by/4.0),which permits unrestricted use,distribution,and reproduction in any medium,provided the original author(s)and source are credited." 展开更多
关键词 principle fog harvesting fabric materials fabrication challenges engineering applications bio inspired
Improved coati optimization algorithm through multi-strategy integration:from theoretical design to engineering applications 认领 引用
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作者 Shuangxi LIU Ruizhe FENG +2 位作者 Yuxin WEI Wei HUANG Binbin YAN 《Journal of Zhejiang University-SCIENCE A》 SCIE EI CAS CSCD 2025年第12期1197-1210,共14页
Optimization problems are crucial for a wide range of engineering applications,as efficient solutions lead to better performance.This study introduces an improved coati optimization algorithm(ICOA)that overcomes the p... Optimization problems are crucial for a wide range of engineering applications,as efficient solutions lead to better performance.This study introduces an improved coati optimization algorithm(ICOA)that overcomes the primary limitations of the original coati optimization algorithm(COA),notably its insufficient population diversity and propensity to become trapped in local optima.To address these issues,the ICOA integrates three innovative strategies:Latin hypercube sampling(LHS),Lévyflight,and an adaptive local search.LHS is employed to ensure a diverse initial population,thereby laying a foundation for the optimization.Lévy-flight is utilized to facilitate an efficient global search,enhancing the algorithm’s ability to explore the solution space.The adaptive local search is designed to refine solutions,enabling more precise local exploration.Together,these strategies significantly improve the population’s quality and diversity,thereby improving the algorithm’s convergence accuracy and optimization capabilities.The performance of the ICOA is tested against several established algorithms,using 12 benchmark functions.Additionally,the ICOA’s practicality and effectiveness are demonstrated through application to a real-world engineering problem,specifically the design optimization of tension/compression springs.Simulation results show that the ICOA consistently outperforms the other algorithms,providing robust solutions for a wide range of optimization problems. 展开更多
关键词 Improved coati optimization algorithm(ICOA) Latin hypercube sampling(LHS) Lévy-flight Adaptive local search Multi-strategy Engineering applications
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Coupled creep-damage and plastic softening/hardening model:Development and engineering application in soft-hard interlayered rock mass 认领 引用
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作者 WANG Yu MAO Suhui +1 位作者 DENG Huafeng CHEN Tao 《Journal of Mountain Science》 SCIE CSCD 2025年第10期3913-3930,共18页
Existing creep constitutive models rarely incorporate studies on the coupling mechanism between creep damage and rock strain softening/hardening.This study analyzed the strain softening and hardening behaviors of argi... Existing creep constitutive models rarely incorporate studies on the coupling mechanism between creep damage and rock strain softening/hardening.This study analyzed the strain softening and hardening behaviors of argillaceous sandstone and sandy mudstone during load-induced failure based on the plastic increment theory.These behaviors were then coupled with an improved Burgers creep model to establish a coupled creep-damage and plastic softening/hardening model.Finally,the validity and engineering applicability of the proposed model were verified through FLAC~(3D)numerical simulations.The numerical simulation results of standard cylindrical specimens show that the established coupling model can effectively reflect the unloading creep deformation law and failure characteristics of argillaceous sandstone and sandy mudstone.Taking the diversion tunnel of a hydropower station in Northwest China as an example for engineering application,the coupled creep-damage and plastic softening/hardening model is introduced into FLAC~(3D)to carry out numerical simulation calculation of the tunnel under excavation and unsupported creep conditions.The results show that the uncoordinated deformation of the upper and lower walls of the surrounding rock of the tunnel is more prominent.When the buried depth of the tunnel increases to 80 m,the monitoring point C in the sandy mudstone area of the upper wall shows nonlinear accelerated deformation under unsupported creep conditions,and the maximum displacement in the horizontal direction reaches 44.5 mm,and the maximum displacement in the vertical direction reaches 53.5 mm.The coupled creep-damage and plastic softening/hardening model established in the research results can well describe the whole process of uncoordinated deformation and failure in the unloading creep process of soft-hard interbedded rock mass. 展开更多
关键词 Unloading creep Strain softening/hardening Creep constitutive model Engineering applications
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Stability analysis method of geogrid reinforced expansive soil slopes and its engineering application 认领 引用 被引量：36
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作者 ZHANG Rui LONG Ming-xu +2 位作者 LAN Tian ZHENG Jian-long GEOFF Chao 《Journal of Central South University》 SCIE EI CAS CSCD 2020年第7期1965-1980,共16页
The traditional stability analysis method of geogrid reinforced slopes does not consider the effect of lateral swelling,so it is not applicable to reinforced expansive soil slopes.This paper reports a new stability an... The traditional stability analysis method of geogrid reinforced slopes does not consider the effect of lateral swelling,so it is not applicable to reinforced expansive soil slopes.This paper reports a new stability analysis method for geogrid reinforced expansive soil slopes.The additional pullout force of the free zone due to the lateral swelling and the anti-pullout safety factor of each geogrid layer were obtained by ensuring the overall stability of the reinforced slope.The optimum design was carried out to treat an expansive soil cut slope in Hubei Province,China,by changing the spacing and length of geogrid reinforcement.Calculation results show that the additional pullout force caused by lateral swelling has a great influence on the anti-pullout stability of geogrids,and the local stability of the reinforced slope will be overestimated if the swelling effect of soil in the free zone is not considered. 展开更多
关键词 expansive soil lateral swelling pressure geogrid-soil interaction stability analysis engineering application
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Principle and engineering application of pressure relief gas drainage in low permeability outburst coal seam 认领 引用 被引量：18
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作者 LIU lin CHENG Yuan-ping +2 位作者 WANG Hai-feng WANG Liang MA Xian-qin 《Mining Science and Technology》 2009年第3期342-345,351,共4页
With the increase in mining depth, the danger of coal and gas outbursts increases.In order to drain coal gas effectively and to eliminate the risk of coal and gas outbursts, we used a specific number of penetration bo... With the increase in mining depth, the danger of coal and gas outbursts increases.In order to drain coal gas effectively and to eliminate the risk of coal and gas outbursts, we used a specific number of penetration boreholes for draining of pressure relief gas.Based on the principle of overlying strata movement, deformation and pressure relief, a good effect of gas drainage was obtained.The practice in the Panyi coal mine has shown that, after mining the C11coal seam as the protective layer, the relative expansion deformation value of the protected layer C13 reached 2.63%, The permeability coefficient increased 2880 times, the gas drainage rate of the C13 coal seam increased to more than 60%, the amount of gas was reduced from 13.0 to 5.2 m3 and the gas pressure declined from 4.4 to 0.4 MPa, which caused the danger the outbursts in the coal seams to be eliminated.The result was that we achieved a safe and highly efficient mining operation of the C13 coal seam. 展开更多
关键词 protective layer mining technology principle drainage of pressure relief gas engineering application
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New algorithm of mine slope reliability based on limiting state hyper-plane and its engineering application 认领 引用 被引量：3
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作者 刘志祥 唐志祥 +2 位作者 王卫华 孙晶晶 彭康 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第1期317-322,共6页
Due to the influence of joint fissure, mining intensity, designed slope angle, underground water and rainfall, the failure process of mine slope project is extremely complicated. The current safety factor calculation ... Due to the influence of joint fissure, mining intensity, designed slope angle, underground water and rainfall, the failure process of mine slope project is extremely complicated. The current safety factor calculation method has certain limitations, and it would be difficult to obtain the reliability index when the performance function of reliability analysis is implicit or has high order terms. Therefore, with the help of the logistic equation of chaos theory, a new algorithm of mine slope reliability based on limiting state hyper-plane is proposed. It is shown that by using this new reliability algorithm the calculation of partial derivative of performance function is avoided, and it has the advantages of being simple and easy to program. The new algorithm is suitable for calculating the reliability index of complex performance function containing high order terms. Furthermore, the limiting state hyper-plane models of both simplified Bishop's and Janbu's method adaptive to slope project are obtained, and have achieved satisfactory effect in the study of mine slope stability in Dexing copper open pit. 展开更多
关键词 limiting state hyper-plane mine slope reliability engineering application
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Fracture sealing based on microbially induced carbonate precipitation and its engineering applications:A review 认领 引用 被引量：11
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作者 Zhichao Song Chuangzhou Wu +1 位作者 Zuoyong Li Danyi Shen 《Biogeotechnics》 2024年第4期41-51,共11页
In this review,the development and application of microbially induced carbonate precipitation(MICP)technology for the sealing of underground engineering fractures are discussed in detail.The importance of sealing micr... In this review,the development and application of microbially induced carbonate precipitation(MICP)technology for the sealing of underground engineering fractures are discussed in detail.The importance of sealing micro-fractures in an environmentally friendly and efficient manner is emphasized,and the potential of the MICP method in controlling pore and fracture seepage is highlighted.The fundamental mechanisms,key influencing factors,numerical models,and applications of the MICP in the fields of geological CO2 storage and oil resources development are comprehensively summarized in the paper.At the same time,the limitations of the existing research and the future research directions are discussed,especially in terms of improving the processing efficiency,environmental impacts,and cost considerations.Overall,the development of MICP technology provides a new environmentally friendly reinforcement method for geotechnical engineering and is expected to play a key role in the future development of underground space engineering. 展开更多
关键词 Microbially induced carbonate precipitation(MICP) Fracture sealing Bio-grouting Engineering applications
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A large LNG tank technology system“CGTank®”of CNOOC and its engineering application 认领 引用
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作者 Zhang Chao Shan Tongwen +1 位作者 Fu Zihang Xiao Li 《Natural Gas Industry B》 2015年第6期530-534,共5页
LNG tanks are complex in design and building process and high in costs,so LNG tank technology is one of the most advanced ones in the field of energy,which has been monopolized by foreign companies for a long time.In ... LNG tanks are complex in design and building process and high in costs,so LNG tank technology is one of the most advanced ones in the field of energy,which has been monopolized by foreign companies for a long time.In order to work out LNG tank technology domestically,China National Offshore Oil Corporation(CNOOC for short),the largest LNG importer in China,develops a LNG tank technology system“CGTank®”successfully in reference to the design and construction experience of domestic and foreign companies,after years of scientific research in tackling difficult problems.This system presents four traits as follows.First,a set of calculation software is developed independently by CNOOC,and the tanks in all operating conditions are calculated after 3D hologram and multi-point contact model of fluid-solid coupling effect is built up.Second,earthquake effect research and inner tank check research are improved innovatively by means of response spectrum analysis after European standards are introduced.Third,it is put forward for the first time that the stress strength discrimination standard is based on the principal stress which is obtained by means of the maximum shearing failure theory.And fourth,a large LNG full-capacity tank technology package with completely independent intellectual property right is established.The“CGTank®”system was first applied in the Tianjin LNG demonstration project,which has passed all indicator tests and is now in operation smoothly.The project is provided with the core tank design technology by CNOOC Gas and Power Group and with the EPC by CNOOC Engineering Co.,Ltd.The independent LNG tank technology can be applied in a wide scope and it is favorable for impelling domestic production of LNG industry completely. 展开更多
关键词 CNOOC LNG Receiving station Full-capacity tank CGTank® Engineering application Domestically produced Tianjin LNG demonstration project
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Evaluations of Chris-Jerry Data Using Generalized Progressive Hybrid Strategy and Its Engineering Applications 认领 引用
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作者 Refah Alotaibi Hoda Rezk Ahmed Elshahhat 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第9期3073-3103,共31页
A new one-parameter Chris-Jerry distribution,created by mixing exponential and gamma distributions,is discussed in this article in the presence of incomplete lifetime data.We examine a novel generalized progressively ... A new one-parameter Chris-Jerry distribution,created by mixing exponential and gamma distributions,is discussed in this article in the presence of incomplete lifetime data.We examine a novel generalized progressively hybrid censoring technique that ensures the experiment ends at a predefined period when the model of the test participants has a Chris-Jerry(CJ)distribution.When the indicated censored data is present,Bayes and likelihood estimations are used to explore the CJ parameter and reliability indices,including the hazard rate and reliability functions.We acquire the estimated asymptotic and credible confidence intervals of each unknown quantity.Additionally,via the squared-error loss,the Bayes’estimators are obtained using gamma prior.The Bayes estimators cannot be expressed theoretically since the likelihood density is created in a complex manner;nonetheless,Markov-chain Monte Carlo techniques can be used to evaluate them.The effectiveness of the investigated estimations is assessed,and some recommendations are given using Monte Carlo results.Ultimately,an analysis of two engineering applications,such as mechanical equipment and ball bearing data sets,shows the applicability of the proposed approaches that may be used in real-world settings. 展开更多
关键词 Chris-Jerry model generalized censoring likelihood and Bayes estimations MCMC algorithms engineering applications
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ADVANCED NICKEL-BASED AND NICKEL-IRON-BASED SUPERALLOYS FOR CIVIL ENGINEERING APPLICATIONS 认领 引用
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作者 U. Brill 《Acta Metallurgica Sinica(English Letters)》 EI CAS 2005年第4期453-462,共10页
The use of high-temperature materials is especially important in power station construction, heating systems engineering, furnace industry, chemical and petrochemical industry, waste incineration plants, coal gasifica... The use of high-temperature materials is especially important in power station construction, heating systems engineering, furnace industry, chemical and petrochemical industry, waste incineration plants, coal gasification plants and for flying gas turbines in civil and military aircrafts and helicopters. Particularly in recent years, the development of new processes and the drive to improve the economics of existing processes have increased the requirements significantly so that it is necessary to change from well-proven materials to new alloys. Hitherto, heat resistant ferritic steels sufficed in conventional power station constructions for temperatures up to 550℃ newly developed ferritic/martensitic steels provide sufficient strength up to about 600 - 620℃. In new processes, e.g. fluidized-bed combustion of coal, process temperatures up to 900℃ occur. However, this is not the upper limit, since in combustion engines, e.g. gas turbines. Material temperatures up to 1100℃ are reached locally. Similar development trends can also be identified in the petrochemical industry and in the heat treatment and furnace engineering. The advance to ever higher material temperatures now not only has the consequence of having to use materials with enhanced high-strength properties, considerable attention now also has to be given to their chemical stability in corrosive media. Therefore not only examples of the use of high-temperature alloys for practical applications will be given but also be contributed to some general rules for material selection with regard to their high-temperature strength and corrosion resistance. 展开更多
关键词 nickel-based alloy high-temperature strength high-temperature corrosion resistance civil engineering application
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Principle and Engineering Application of Synthetic Reinforcement 认领 引用
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作者 SHENHongyu WANGHan +1 位作者 YUANTingbiao LIHao 《外文科技期刊数据库（文摘版）工程技术》 2022年第5期134-138,共5页
The engineering concept, definition, reinforcement principle, engineering function, engineering characteristics and engineering application cases of geosynthetics at home and abroad are introduced. The application of ... The engineering concept, definition, reinforcement principle, engineering function, engineering characteristics and engineering application cases of geosynthetics at home and abroad are introduced. The application of geosynthetics in the fields of foundation treatment, retaining wall, stone retaining wall, port coast, river protection and environmental protection engineering is discussed. Finally, the future development prospect of geosynthetics is prospected. 展开更多
关键词 geosynthetics mechanism of action engineering application prospective
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Paving Materials and Engineering Applications of Permeable Pavement 认领 引用
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作者 Zhuang Liu 《Journal of World Architecture》 2022年第2期15-18,共4页
The stability of roads in cities directly affects the safety of traffic and transportation.In the process of pavement laying,relevant personnel should use permeable paving materials in the process of construction.Base... The stability of roads in cities directly affects the safety of traffic and transportation.In the process of pavement laying,relevant personnel should use permeable paving materials in the process of construction.Based on the analysis of road drainage requirements,traditional paving materials have relatively poor water permeability,which leads to ponding problems during road use[1].Within this frame of reference,beginning with the characteristics of permeable paving materials,this paper makes an in-depth exploration on practical application measures. 展开更多
关键词 Permeable pavement Paving materials Engineering application Porosity
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Study on the Treatment and Reuse of Mineral Processing Wastewater and Its Engineering Application 认领 引用
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作者 LI Jian 《外文科技期刊数据库（文摘版）工程技术》 2021年第7期131-132,共2页
If the wastewater from mineral processing cannot be effectively treated or recycled, it will pose a serious threat to the environment and human health. At present, experts and researchers in other countries and domest... If the wastewater from mineral processing cannot be effectively treated or recycled, it will pose a serious threat to the environment and human health. At present, experts and researchers in other countries and domestic focus on the treatment and recycling of mineral processing wastewater, in order to reduce the secondary pollution caused by mineral processing wastewater. China has also begun to explore new sewage treatment methods by increasing investment in practical engineering applications based on actual production conditions. In this paper, the damage caused by sewage mineral treatment to the environment, and the treatment method of sewage mineral treatment were discussed in detail, and the treatment method of mineral processing wastewater was deeply explored, hoping that the article has a certain reference value. 展开更多
关键词 mineral processing wastewater reuse method engineering application
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Coordinated Control Strategy and Engineering Application of FSC-VSPSU in Generation State 认领 引用
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作者 Huabo Shi Yufei Teng +5 位作者 Zhaohua Hu Gang Chen Lijie Ding Xueyang Zeng Pengyu Pan Baorui Chen 《Protection and Control of Modern Power Systems》 SCIE EI CSCD 2026年第2期77-88,共12页
To ensure safety while maintaining efficient operation and fast power regulation,this paper proposes a coordinated control strategy for variable-speed pumped storage units with full-size converters(FSC-VSPSU)in genera... To ensure safety while maintaining efficient operation and fast power regulation,this paper proposes a coordinated control strategy for variable-speed pumped storage units with full-size converters(FSC-VSPSU)in generation state.First,the dynamic stability characteristics and the key influencing factors in the fast power control mode and fast speed control mode are analyzed using the eigenvalue analysis method.The results indicate that the fast speed control mode can effectively address the issue of ultra-low frequency oscillation induced by fast power control.Then,the characteristics among the optimal speed,guide vane opening,and efficiency are clarified through laboratory testing of a pump turbine model machine,laying the foundations for developing optimized operation for the pumped storage units.Based on the analysis of slow load regulation and power step regulation,the power frequency regulation characteristics of the two control modes are revealed.Finally,leveraging the advantages of dynamic stability and power-speed regulation ability under the two control modes,a novel coordinated control strategy is proposed.The strategy has been ap-plied to the first FSC-VSPSU in China,and the field tests demonstrate that the unit achieves excellent speed regulation performance and fast power regulation capability. 展开更多
关键词 FSC-VSPSU fast power mode fast speed mode stability characteristics cooperated control strategy engineering application.
Artificial intelligence‑driven distributed acoustic sensing technology and engineering application 认领 引用 被引量：12
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作者 Liyang Shao Jingming Zhang +14 位作者 Xingwei Chen Deyu Xu Huaxin Gu Qi Mu Feihong Yu Shuaiqi Liu Xiaobing Shi Jiayao Sun Zixing Huang Xiongji Yang Haifeng Zhang Yunbin Ma Han Lu Chuanqing Liu Changyuan Yu 《PhotoniX》 SCIE EI 2025年第1期53-103,共51页
Distributed acoustic sensing(DAS)technology is a fiber-optic based distributed sensing technology.It achieves real-time monitoring of acoustic signals by detecting weak disturbances along the fiber.It has advantages s... Distributed acoustic sensing(DAS)technology is a fiber-optic based distributed sensing technology.It achieves real-time monitoring of acoustic signals by detecting weak disturbances along the fiber.It has advantages such as long measurement distance,high spatial resolution and large dynamic range.Artificial intelligence(AI)has great application potential in DAS technology,including data augmentation,preprocessing and classification and recognition of acoustic events.By introducing AI algorithms,DAS system can process massive data more automatically and intelligently.Through data analysis and prediction,AI-enabled DAS technology has wide applications in fields such as transportation,energy and security due to its accuracy of monitoring data and reliability of intelligent decision-making.In the future,the continuous advancement of AI technology will bring greater breakthroughs and innovations for the engineering application of DAS technology,play a more important role in various fields,and promote the innovation and development of the industry. 展开更多
关键词 Distributed acoustic sensing(DAS) Artificial intelligence(AI) Engineering application
Mathematical principle and engineering application of end-mining technology with non-pillar 认领 引用 被引量：1
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作者 Jianyong Qiao Zhiqiang Wang +1 位作者 Tingzhao Li Yun Zhao 《Earth Energy Science》 2025年第1期85-97,共13页
To ameliorate the difficulties of on-site dynamic disaster control in the end-mining stage of traditional mining engineering,this paper introduces the mathematical research and engineering application of the end-minin... To ameliorate the difficulties of on-site dynamic disaster control in the end-mining stage of traditional mining engineering,this paper introduces the mathematical research and engineering application of the end-mining technology system with non-pillar in mines(ETSNM)in recent years.The petal warning criterion for the stability of the surrounding rock of the roadway at the end-mining stage was obtained by studying the inverse problem of the petal theorem.A conformal mathematical model of the end-mining stage was established using the conformal mapping method,and the limit theorem of the peak point of mine pressure(LTPPMP)in the end-mining stage was demonstrated.Based on the cross-fusion of the above basic mathematical theory and the LTPPMP,a new ETSNM model was proposed,which includes no coal pillar,no dedicated retracement roadways,and fast retracement equipment(NNF).The mathematical principles of engineering technology for height control,speed limit,and roof cutting in the end-mining stage with non-pillar were revealed.The scientific and application values of the ETSNM were confirmed through engineering applications.Based on this,a new non-pillar control technology for dynamic disasters in the end-mining stage was proposed.The above research will play an active role in promoting the engineering application of ETSNM driven by mathematical theory. 展开更多
关键词 Non-pillar End-mining technology Mathematical principle Engineering application Dynamic disaster
Recycling municipal solid waste incineration fly ash and Si–Al based solid waste to prepare backfill materials for engineering applications:Insights into hydration mechanisms,carbon emissions,and costs 认领 引用
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作者 Tong Zhao Siqi Zhang +5 位作者 Huifen Yang Qiwei Sun Guocui Li Zeping Wu Wen Ni Anlin Shao 《Green and Smart Mining Engineering》 CSCD 2025年第3期330-346,共17页
Backfilling mining goafs with municipal solid waste incineration fly ash(MSWI FA)and industrial solid waste offers novel possibilities for advancing green mining engineering.However,the recycling of MSWI FA using Si-A... Backfilling mining goafs with municipal solid waste incineration fly ash(MSWI FA)and industrial solid waste offers novel possibilities for advancing green mining engineering.However,the recycling of MSWI FA using Si-Al-based solid wastes to prepare MSWI FA-based backfill materials(MBM)remains at the laboratory stage,with limited studies addressing the in-depth mechanisms and sustainability of MBM in actual goafs.This study investigated the leaching safety,chemical bonding,and valence states of Si-Al products and microstructure,carbon emissions,and economic feasibility of a multi-component backfill material(MLBM)composed of MSWI FA,blast furnace slag(BFS),steel slag(SS),coal fly ash(CFA),flue gas desulfurized gypsum(FGDG),and lead-zinc tailings.The binder weight ratio was MSWI FA:BFS:SS:CFA:FGDG=10:33.6:33.6:20:12.80 under engineering application conditions.The toxicity characteristic leaching procedure test showed that the anion and heavy metal leaching concentrations from MLBM were below the Class II thresholds specified in the Standard for Groundwater Quality(GB/T 14848-2017).The hydration mechanism involves:(i)Cl-competition that accelerates and promotes the generation of ettringite and Friedel's salt;(ii)MSWI FA-induced depolymerization and repolymerization of the Si-Al vitreous network,facilitating C-(A)-S-H gel formation with high average connectivity degree/mean chain length(Dc/LMC)ratio and a low Ca/Si atomic ratio(1.27),resulting in an increased content of Si-O-Si(Qp2and Qb2)and Si-O-Si(Q3)(bridging oxygen)in the C-(A)-S-H gel;(iii)porefilling effect by various functional hydration products that increases the proportion of gel pores(3.5-100 nm)in MLBM to 47.31vol%and reduces the porosity to 40.20vol%.Compared with that of traditional cement materials,the production of MLBM led to reduced material costs by 80%and CO2emissions by more than 98%.These findings contribute to the sustainable development of green mining,enhance the efficiency of solid waste management,reduce environmental pollution,and support global carbon reduction targets. 展开更多
关键词 Municipal solid waste incineration fly ash Engineering applications Backfill materials Chemical bonds/valence state Microstructure Carbon emission economics
Design and Application of Intelligent Monitoring System for Bridge Construction Based on BIM + Internet of Things 认领 引用
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作者 Shenghui Yang Jing Su 《Journal of Architectural Research and Development》 2026年第1期44-51,共8页
To address issues such as data fragmentation, low visualization, and delayed early warning in traditional bridge construction monitoring, an intelligent monitoring system for bridge construction that integrates BIM (B... To address issues such as data fragmentation, low visualization, and delayed early warning in traditional bridge construction monitoring, an intelligent monitoring system for bridge construction that integrates BIM (Building Information Modeling) and IoT (Internet of Things) technologies is proposed. Firstly, the core application requirements and technical challenges of BIM and IoT technologies in the field of bridge engineering are outlined. Secondly, a four-tier architecture system consisting of the “perception layer–transmission layer–data layer–application layer” was constructed, with a focus on explaining the functional modules, hardware selection, and software integration solutions at each level to achieve real-time collection, dynamic modeling, and intelligent analysis of key parameters such as structural stress, settlement, temperature, and equipment operational status during the construction process. Finally, based on an actual bridge engineering project, system application verification is conducted. By comparing the application effects of traditional monitoring methods with those of the intelligent monitoring system, the feasibility and superiority of the system in enhancing construction monitoring accuracy, efficiency, and safety management capabilities are validated. 展开更多
关键词 BIM technology Internet of things Bridge construction Intelligent monitoring System design Engineering application
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Research on Selection and Application of Small-scale Integrated Wastewater Treatment Equipment for Rural Areas 认领 引用
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作者 HU Zhilei 《外文科技期刊数据库（文摘版）自然科学》 2026年第1期075-079,共5页
Given the increasing volume of domestic wastewater generation and the challenges associated with centralized collection in China, decentralized wastewater treatment has become a significant challenge in rural areas. C... Given the increasing volume of domestic wastewater generation and the challenges associated with centralized collection in China, decentralized wastewater treatment has become a significant challenge in rural areas. Compact integrated systems, characterized by their small footprint, easy installation, and user-friendly operation, have been widely adopted for wastewater treatment in rural settings. Based on the specific characteristics of rural wastewater, this article summarizes the fundamental types of integrated treatment equipment and proposes a methodology for selecting appropriate systems by comprehensively considering factors such as treatment capacity, effluent quality requirements, operational costs, and local climatic conditions. Finally, several case studies illustrate common challenges encountered during the implementation of these systems and propose corresponding solutions. The findings demonstrate that careful selection and meticulous construction management are crucial for enhancing the effectiveness of integrated wastewater treatment systems in rural areas, with the research insights offering valuable references for similar projects. 展开更多
关键词 Rural wastewater Integrated treatment systems Process selection Engineering applications Distributed treatment
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