Accurate Survey of a Landslide Based on Plane and Deep Displacement Joint Monitoring
Based on the landslide project of a high slope in a highway,on the basis of geological survey,drilling and in-situ testing,a joint monitoring model based on plane and deep displacement is introduced to carry out accurate investigation.The landslide boundary and sliding direction are determined by plane displacement monitoring.The position of the slip surface was determined by deep inclinometer.The spatial structure features were identified by 6-hole drilling.The slip zone soil index was obtained by drilling and sampling under the guidance of deep monitoring.The stability coefficients under natural and saturated conditions were 1.01 and 0.98 respectively.The slope sliding law of the monitoring data is analyzed and shows that the sliding rate increases during continuous rainfall,the sliding rate decreases after the construction stops,and the deformation rate gradually decreases from the rear to the front.It belongs to thrust-type landslide.The comprehensive treatment scheme of unloading and gravity type cover surface is put forward.
万方数据
维普
