复杂地质条件下岩壁吊车梁破坏机理及长期稳定运行研究  

Research on Failure Mechanism and Long-term Stable Operation of rock-bolted crane girder under Complex Geological Conditions

作　　者：韩国君 秦洋 HAN Guojun;QIN Yang(Yebatan Branch of Huadian Jinsha River Upstream Hydropower Development Co.,Ltd.,Ganzi Sichuan 627153;PowerChina Chengdu Engineering Corporation Limited,Chengdu Sichuan 610072)

机构地区：[1]华电金沙江上游水电开发有限公司叶巴滩分公司,四川甘孜627153 [2]中国电建集团成都勘测设计研究院有限公司,四川成都610072

出　　处：《四川水力发电》2024年第2期6-13,共8页Sichuan Hydropower

摘　　要：叶巴滩水电站地下洞群处于极高地应力与复杂结构面共存的不利条件,岩壁吊车梁在开挖过程中出现较严重的破坏现象,基于现场实际破坏现象、微震监测数据、物探检测等成果,深入分析了岩壁吊车梁的破坏机理,提出针对性的动态优化设计措施,并利用仿真分析软件开展了桥机荷载作用下的运行安全性计算,结果表明:通过增设的钢筋混凝土扶壁墙,可以满足岩壁吊车梁长期安全运行。The underground caverns of Yebatan Hydropower Station are under joint adverse effect of extremely high stress and complex structural planes.In response to failure phenomenon of rock-bolted crane girder during the excavation,based on actual failure phenomena on site,microseismic monitoring data,geophysical detection and other results,failure mechanism of rock-bolted crane girder is analyzed in depth,and targeted dynamic optimization design measures are proposed,simulation analysis software is used to calculate the operational safety of the bridge crane under load.The results show that the addition of reinforced concrete buttress walls can meet the long-term safe operation of rock-bolted crane girder.

关 键 词：复杂地质 岩壁吊车梁 破坏机理 稳定运行 

分 类 号：TV741[水利工程—水利水电工程] P545[天文地球—构造地质学]