一、序言边坡在其安全系数接近于1,即在极限时保持稳定的情况下,由于暴雨、连绵大雨、水库的蓄水等而使地下水位升高,以及因大地震、大爆破等使稳定平衡遭到破坏时,都有可能发生突然大滑坡,而一般情况下很少发生突然大滑坡。边坡滑坡一般都有一些前兆,即随着边坡内部破坏的发展而产生微弱的骚音,或者是在边坡顶部或其背后产生张裂缝。这时,在边坡表面也产生裂 I. INTRODUCTION In the case of slopes with safety factors close to 1, that is, stable at the limit, groundwater level will rise due to rainstorms, heavy rains and water storage in reservoirs, etc., and due to large earthquakes and large explosions When a stable balance is damaged, a sudden and large slide may occur, but in the general case, there is very little chance of sudden decline. Landslide slopes generally have some precursors that produce weak vocalizations as the sabotage develops within the slope, or cracks at the top of the slope or behind it. At this time, cracks also appear on the slope surface