摘要
豆芽棚滑坡体长５００ｍ，宽１５０ｍ，平均厚１０─１５ｍ，体积１００万ｍ￣３．主滑方向３０°。滑坡前缘海拔１５０ｍ，后缘海拔２００ｍ，本滑坡是在斜坡遭人为破坏（加载）后由降雨诱发的。滑坡防治措施主要拟采取减载和布设抗滑桩。
Douyapeng Landslide is located in northern of Wanxian City,Sichuan Province,where isalso the plannd new city section to that the people will move from the Three Gorges ReservoirArea of Changjiang River.Landslide was caued by man-mademored and rainning osmosization。Landslide is about 500m of length, 150m of width,10 15m of depth,and 1M(m)￣3 ofvolume, The slide direction tends to 30°,the altitude is 150─200m,and the slope angle is 10°downwards to 20°upwards。A vehicle stop station was built in 1991─1992 on middle of the slope,Crack was foundbeyond the slope on August of 1992; on September the crack horizontal displacement was 2─3cm and vertical displacement was 10─30cm。The shape of landslide surface shaw the step like the rock flcor. Landslide matter is consistedof “red rock bed of Sichuan”。 Critical dip angle of skid-resisting is a_(0k≤15.0° and critical dipangle of slide is Decline ratio of the points on correlation curve(Fig.5)are also thedip angle to the points on slope, calculation result declared that before building the station , theaverage slope angles of skid-resisting and slide are,the slopewas stable in this time。 After building the station, the angles are,the landslide was trigged。Control project includes relieving loading on slope and skid-resisting piles。
出处
《山地研究》
CSCD
1994年第4期213-218,共6页
关键词
豆芽棚
滑坡
破坏模型
Sichuan Province, Wandan City,landslide, man-mademored, demaged model
