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Numerical Research on Fractured Surrounding Rock Deformation and Failure Law Caused by Submarine Mining

文献类型：期刊论文

作者Li, Guang1,2; Liu, Gang3; Ma, Fengshan1,2; Guo, Jie1,2
刊名WATER
出版日期2022-10-01
卷号14期号:19页码:13
关键词submarine mining Y-Mat program surrounding rock mass failure ground deformation
DOI10.3390/w14193171
英文摘要The existence of cracks has a considerable influence on the deformation failure characteristics and mechanical behavior of the surrounding rock mass. For submarine mining in particular, if a fractured zone in which water is flowing is formed between the goaf and the overlying strata, it will result in a devastating disaster in the mine. Therefore, it is of great significance to understand the deformation and failure law of fractured surrounding rock. Based on field investigation and the self-developed Y-Mat finite-discrete element numerical calculation program, submarine mining in the Xinli mine under three different working conditions was simulated. The research results showed that when mining in fractured rock mass, the influence range was large, the surrounding rock deformation was significant, and a discontinuous stress field was generated. Backfill mining can effectively restrain the deformation failure of surrounding rock and reduce the occurrence of penetrating fractures. Moreover, the effect of backfill mining was more obvious in the fractured surrounding rock. The fault had a barrier effect on the penetration of surrounding rock cracks, but its effect was weakened in the fractured surrounding rock. Under the working conditions of the study area, i.e., backfill mining in the fractured rock mass, the primary fractures in the surrounding rock were destroyed first, followed by the intact rock mass between the cracks. It was possible for the fractures to run through the overlying strata. Double subsidence centers developed on the surface and the reflection of deformation on the surface showed obvious hysteresis. These research results can provide a reference for mining stability evaluation and disaster prevention in the study area.
WOS关键词GROUND SUBSIDENCE ; ELEMENT-METHOD ; SIMULATION ; TUNNELS ; MASS
资助项目National Natural Science Foundation of China[41831293] ; National Natural Science Foundation of China[42072305]
WOS研究方向Environmental Sciences & Ecology ; Water Resources
语种英语
WOS记录号WOS:000868001600001
出版者MDPI
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/107812]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Liu, Gang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Xian Ctr Geol Survey CGS, Key Lab Geohazards Loess Area, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Li, Guang,Liu, Gang,Ma, Fengshan,et al. Numerical Research on Fractured Surrounding Rock Deformation and Failure Law Caused by Submarine Mining[J]. WATER,2022,14(19):13.
APA Li, Guang,Liu, Gang,Ma, Fengshan,&Guo, Jie.(2022).Numerical Research on Fractured Surrounding Rock Deformation and Failure Law Caused by Submarine Mining.WATER,14(19),13.
MLA Li, Guang,et al."Numerical Research on Fractured Surrounding Rock Deformation and Failure Law Caused by Submarine Mining".WATER 14.19(2022):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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