Research On Metro Construction Surface Settlement Standard Due To The Safety Of Buried Pipeline

With the development of economy,the increasing population pressure and the traffic problem is becoming more serious in china.In order to solve the increasingly serious problem of traffic pressure,the major cities have begun to build the subway.In the pcocess of subway construction,it is a balance state of destroying to tunnel construction,cause the stress to be distributed,and make the surrouding rock been deformed.The pressure near the underground pipeline will damage the underground pipeline and affect the safety of construction.So how to ensure the safety of the tunnel passing under the underground pipeline is an issue,which need to solve.In this paper,the following research are studied,which are the deformation law of the existing pipeline and the safety control standards of the underground pipeline.(1)On the background of Ping An Station to People's Square Station of Shijiazhuang Metro 1,the influence of tunnel construction opassing under the underground pipeline is analyzed by using the three-dimensional numerical model.(2)If the underground pipeline and tunnel vertical to each other,analysis and tunnel vertical underground pipeline,the paper analyzed the underground pipeline t deformation law and influence factor in the processes of tunnel construction.(3)If the underground pipeline and tunnel parallels to each other,other,the paper analyzed the underground pipeline t deformation law and influence factor in the processes of tunnel construction.(4)If the underground pipeline and tunnel oblique to each other,analysis and tunnel oblique underground pipeline,the paper analyzed the underground pipeline t deformation law and influence factor in the processes of tunnel construction.(5)According to the pipeline control standard,combined with pipeline deformation and formation displacement relationship,the norms of the ground subsidence for tunnel construction allowed by underground pipelines are studied.