Study on slope stability of foundation pit supporting applied to gravel changing-filling method

According to the principle and effect of changing-filling method,this method is well applied to foundation supporting project for the first time.Combining a project example in Qingdao,the slope stability of the original foundation-soil and filling-soil are analyzed with the help of the Lizheng geotechnical software,and slope stability factors are got under the different gradient and different slope width conditions,and finally the changing-filling slope's design form is made.Through the supporting effect monitoring,this changing-filling slope proves to be stable.