【作者】 张文居； 赵其华； 沈军辉； 王兰生； 徐进；

【Author】 Zhang Wenju

【机构】 成都理工大学工程地质研究所； 四川大学水利水电学院；

【摘要】 大变形破裂体位于某水电站左坝肩下游,根据野外实际调研分析,得出其形成演化机制,然后通过室内地质力学模拟试验,动态的再现了该变形破裂体的整个破坏过程,并验证了此前人们对其破坏机制的客观认识,同时得出F29陡倾断续裂隙构成的楔形体单纯在自重应力下不会产生整体失稳下滑,而失稳下滑之原因主要是因大量降雨、冰雪融水渗入F29及楔形体后缘陡倾裂面,并产生异常空隙水压力所致,并因楔形体失稳下滑的牵引作用,产生了目前变形体的旋转拉裂松动变形现象。更多还原

【Abstract】 During geologic investigation for the large deformation-fracture Then depend on the geology -mechanic modeling test,we can reappear the integral damage process,of a hydroelectric station, the formation-evolution mechanism is discovered and verified.The total destabilization of the wedge which be made of break Fracture 29th resulted from water come from rainfall and snowfall infiltrated into F29 and the after-edge of the wedge,which has formed the abnormal interstitial hydraulic pressure,and the tractive effort of the wedge’ sliding,leaded into the deformation of revolution and pull crack nowadays.更多还原