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洒勒山滑坡是近期发生的大型土质高速滑坡。滑前有预兆迹象,滑后具有层序分明的形态。部分滑体在被推出滑床时,呈高速抛射状态,或具有飘浮推移,跳跃前进的特征,并在前缘开阔的河漫滩上形成大面积的碎屑流物质。洒勒山滑坡从蠕变到剧变大致经历前缘剪切蠕变、后缘拉裂张开、中部贯穿剪断等三个阶段。后缘拉裂突然闭合的现象是临滑前的重要预兆特征。本文根据现场考察资料,对滑坡产生的地理环境、地质背景、洒勒山滑坡的特征(滑坡的形成和破坏机理、运动特征、形态特征、滑前的预兆特征),以及产生滑坡的原因进行了初步分析,这对研究高速滑坡的监测、预报和防治具有实际意义。
Sallying landslide is a recent large-scale soil high-speed landslide. There are signs of signs of pre-slip, slip with a clear sequence of forms. Part of the sliding body, when it is pushed out of the sliding bed, is in a state of high-speed projectile or has the characteristics of floating and jumping forward and forming a large area of debris flow on the river floodplain with an open front. The Spaller landslide generally experienced three stages of creep and creep from the creep to the upheaval. The phenomenon of a sudden closure of the trailing edge cracking is an important omen sign before the slippery slope. Based on the field investigation data, the paper analyzes the geo-environment, geological background, the characteristics of the Spalishan landslide (the formation and failure mechanism of the landslide, the movement features, the morphological features, the foreshadowing features of the slippery slope) and the reasons for the landslide Preliminary analysis, which is of great significance to the research on the monitoring, forecasting and prevention of high-speed landslide.