Title of Paper:大岗山水电站边坡抗剪岩-洞相互作用研究

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Date of Publication:2022-06-29

Journal:地下空间与工程学报

Volume:13

Issue:5

Page Number:1347-1354

ISSN No.:1673-0836

Abstract:The geological conditions of the right bank slope of Dagangshan hydropower station is complex with high in-situ stress.The geological defects in this slope include diabase dikes,faults moderately dipping outside slope,dense belts of unloading fissures,which make the stability problem of the slope serious.The stability of the slope before and after reinforcement and the interaction of rock-gallery were analyzed by the microseismic monitoring technology in combination of numerical simulations,i.e.the finite difference software FLAC3D.The potential sliding surface of slope failure was determined by microseismic events of rock mass spatial damages during slope excavation.The results show that the anti-shear gallery reinforces the slope markedly.The displacement after reinforcement of the slope is less than half of the slope before reinforcement.Safety factor of slope increases 36.2％ and the microseismic events reduced by 66.4％.

Note:新增回溯数据