Measurement and Analysis of Ground Settlement of Slurry Balanced Pipe Jacking Underpassing Urban Road
In China's coastal water-rich areas,slurry balance pipe jacking method as a main method of municipal pipeline construction,is widely used and gradually promoted.At present,there are few studies on the surface settlement caused by the slurry balance pipe jacking under the urban road.Therefore,this paper takes the reclaimed water pipeline project of Baotou Hope Park as the background,and studies the surface settlement of the slurry balance pipe jacking under the urban road through on-site monitoring,in order to provide reference for other projects.The results show that the root cause of surface deformation caused by pipe jacking construction is the disturbance of surround-ing soil caused by construction,which is mainly the extrusion of jack,the cutting disturbance of cutterhead and the grouting pressure.The general trend of surface deformation is first subsidence,then uplift,then rapid subsidence,and finally tends to a small fluctuation state.In the process of pipe jacking,the settlement change on the jacking axis is the largest,and the settlement change on both sides of the jacking axis is relatively small.
NETL
NSTL
万方数据
