Characteristics And Stability Evaluation Of Qianfochan Landslide Of Jingmen City,Hubei Province

Qianfochan landslide is located at jingmen city,hubei province.The deformation of the landslide began in July 2016 with heavy rainfall.At present,the landslide has been sliding and deformation several times.After that,the landslide will have different degrees of slippage and slump deformation.The landslide deformation has caused serious damage to the cement platform in front of qianfochan temple,which poses a great threat to the safe operation of tourists,staff and vehicles.This research through the thousand Buddha temple landslide geological survey data,combined with the field survey data,explore the influential factors and formation mechanism of the landslide,and USES the method of Swedish article points,on the landslide stability calculation and evaluation,has achieved the following results:(1)combining previous research results and through on-site field investigation,access to the landslide shape,material composition,hydrogeology,landslide basic situation such as deformation,card,determine the landslide is made up of quaternary artificial fill(Qml)the structure of the small loose soil landslide,atmospheric precipitation and human engineering activities are dominant factors,which influence the stability of landslide formation mechanism for the front starts pulling in upper soil deformation and failure.(2)through the field geological drilling in soil samples eight groups,including landslide filled soil sample 6 groups,silt soil sample 2 set,remove the bedrock of four groups,and dispersed the rock and soil physical and mechanical test respectively and rock and soil physical and mechanical parameters,with reference to the Swedish article points method calculation factor(Felenius method),and combined with the similar projects in the engineering method,finally selected three landslides rock heavy r(kN/m3),cohesion C(kPa),internal friction Angle phi(°)and the bearing capacity(kPa)as calculation parameters.(3)contrast the national code for the landslide control engineering survey(GB/T 32864-2016)standards,thousand-buddha temple landslide stability calculation results for the working condition of nature(natural)under the condition of landslide stability coefficient is 1.139,as the basic steady state;The stability coefficient of landslide is 0.976 under the condition of rainstorm(saturation),which is unstable.The study of the landslide characteristics,to explore the important link in the field of geological disasters,stability study Swedish article points method(Felenius method)has a certain universality and practicability,the research results of similar landslide stability calculation and evaluation and geological disasters such as governance has a certain reference value.