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山区城市地面岩体演化特征 被引量:1
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作者 姜云 王兰生 《成都理工大学学报(自然科学版)》 CAS CSCD 1997年第S1期111-116,共6页
本文以我国最大的山区城市———重庆为典型实例,并与三峡工程水库区沿江其它山区城市进行对比,系统分析和讨论了地面岩体风化壳层的特征和斜坡岩体变形破坏机制和规律,以及人类工程活动与地质环境之间的相互作用。
关键词 山区城市 地面岩体 演化特征
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Science of empirical design in mining ground control 被引量:9
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作者 Mark Christopher 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第3期461-470,共10页
Many problems in rock engineering are limited by our imperfect knowledge of the material properties and failure mechanics of rock masses. Mining problems are somewhat unique, however, in that plenty of real world expe... Many problems in rock engineering are limited by our imperfect knowledge of the material properties and failure mechanics of rock masses. Mining problems are somewhat unique, however, in that plenty of real world experience is generally available and can be turned into valuable experimental data.Every pillar that is developed, or stope that is mined, represents a full-scale test of a rock mechanics design. By harvesting these data, and then using the appropriate statistical techniques to interpret them,mining engineers have developed powerful design techniques that are widely used around the world.Successful empirical methods are readily accepted because they are simple, transparent, practical, and firmly tethered to reality. The author has been intimately associated with empirical design for his entire career, but his previous publications have described the application of individual techniques to specific problems. The focus of this paper is the process used to develop a successful empirical method. A sixstage process is described: identification of the problem, and of the end users of the final product; development of a conceptual rock mechanics model, and identification of the key parameters in that model;identification of measures for each of the key parameters, and the development of new measures(such as rating scales) where necessary; data sources and data collection; statistical analysis; and packaging of the final product. Each of these stages has its own potential rewards and pitfalls, which will be illustrated by incidents from the author's own experience. The ultimate goal of this paper is to provide a new and deeper appreciation for empirical techniques, as well as some guidelines and opportunities for future developers. 展开更多
关键词 Design Pillar Stope Empirical Statistics Modeling
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Monitoring of CO_2 geological storage based on the passive surface waves
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作者 Dai Kaoshan Li Xiaofeng +3 位作者 Song Xuehang Chen Gen Pan Yongdong Huang Zhenhua 《International Journal of Mining Science and Technology》 SCIE EI 2014年第5期707-711,共5页
Carbon dioxide (CO2) capture and geological storage (CCS) is one of promising technologies for greenhouse gas effect mitigation. Many geotechnical challenges remain during carbon dioxide storage field practices, a... Carbon dioxide (CO2) capture and geological storage (CCS) is one of promising technologies for greenhouse gas effect mitigation. Many geotechnical challenges remain during carbon dioxide storage field practices, among which effectively detecting CO2 from deep underground is one of engineering problems. This paper reviews monitoring techniques currently used during CO2 injection and storage. A method developed based on measuring seismic microtremors is of main interest. This method was first successfully used to characterize a site in this paper. To explore its feasibility in C02 storage monitoring, numerical simulations were conducted to investigate detectable changes in elastic wave signatures due to injection and geological storage of CO2. It is found that, although it is effective for shallow earth profile estimation, the surface wave velocity is not sensitive to the CO2 layer physical parameter variations,especially for a thin CO2 geological storage layer in a deep underground reservoir. 展开更多
关键词 Microtremor CO2 storage Passive surface wave Site characterization Feasibility study
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