Study on the Stability and Treatment Measures of a Highway Cutting Slope
Taking K301+200～+373 right side cutting slope of an expressway as the research object,through site survey and monitoring of prestressed anchor cable,it is found that the slope has a number of different degrees of cracking,foot expansion shear and local slump,and the current average prestressed loss of anchor cable is 73.30%.It is analyzed that the cause of the slope disease is mainly poor rock lithology,and a large amount of rainwater penetrates after continuous concentrated heavy rainfall,which softens rock mass and reduces shear strength.At the same time,the original reinforcement measures are insufficient,resulting in slope deformation.The Geo5 software is used for numerical simulation and analysis,and the results show that the slope is in the unstable state as a whole,and the local section is in the unstable state.With the continuous development of slope deformation,there is a risk of anchor cable failure.The comprehensive treatment measures of strengthening the already sliding area,pre-strengthening the potentially dangerous area and improving the drainage facilities are adopted,and the treatment effect is good.
cutting slopecauses of diseasenumerical simulationstability analysistreatment measure
万方数据
维普
