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在水利工程建设中,经常遇到库区边坡稳定问题。水库初期蓄水时期,当库水位上涨或急剧消落时,常会引起岸坡岩体内部应力状态的改变,使软弱带的强度降低,部分岩体失去稳定,大量土石落入库内,形成巨大的涌浪,引起一些严重问题:如减少水库有效库容,淤塞河道,堵塞进水口,摧毁建筑物,并对下游造成危害等等。近二十多年来,这样的事例在
In the construction of water conservancy projects, we often encounter the problem of slope stability in the reservoir area. During the initial storage period of the reservoir, when the water level in the reservoir rises or falls drastically, the internal stress state of the slope rock mass usually changes, the strength of the weak zone decreases, some of the rock mass loses its stability, and a large amount of soil rocks fall into the reservoir, forming a huge The surge caused some serious problems such as reducing the effective reservoir capacity, silting rivers, plugging water intakes, destroying buildings, causing harm to the downstream and so on. In the past twenty years, such an example is