万州塘角村1号滑坡特征和成因研究

Research of Tangjiaocun 1^# Landslide Characteristic and Cause Formation

重庆万州塘角村1号滑坡属于基岩顺层滑坡,滑坡总面积1.25×107m2,总体积2.5×108m3。2007年4月初的降水使滑坡变形加剧,一旦失稳将会摧毁下面的村庄,给人民的生命和财产造成重大的损失。通过野外调查,详细研究了塘角村1号滑坡的地质环境和滑坡特征,并结合滑坡的监测数据,研究了塘角村1号滑坡的成因,判断出该滑坡的中下部处于不稳定状态。

The Tangjiaocun landslide in Wanzhou city is a new consequent rock landslide of traction type, The landslide is 1 000 m long, 1 250 m wide in average with 2.5× 10^8 m^3 in volume and 1.25×10^7 km^2 in area, after the rainfall in April 1 th 2007, the landslide deformed acute, if it slide there will be great losses of life and economy in the landslide. On the basis of field investigation and study, the geologic environment and characters of Tangjiaocun landslide are studied in detail. According to the environment characters and the monitoring data of Tangjiaocun landslide, the geologic origin and the environment origin are researched, The conclusion is that the middle-lower of the Tangjiaocun landslide are unstable.