Studies On Controlling Technology Of Ground Subsidence Induced By Shallow Tunnel Construction Method In Urban Environments

For the purpose of keeping normal traffic and controlling sedimentation for surface and bridge pile during construction and based on the project reality for the shallow-buried culvert through Dinghui North Bridge and sediment control, this article would illustrate all the factors as statrum, support and shallow-buried culvert to get detaild informantion for the construction of the bridge. Numerical analysis is carried for surface deformation and structure strength, while simulation analysis for key and hard works of the bridge pile, construction prameter is made in advance before construction and detailed to all the construction process. During the construction, an all-round and systematic surveillanceif for the detail of the carriculation rusult from which the border condition would be recogonized. It has a better accordance between surveillant result and calculation for the surface deformation control from the early period to start. Surface sediment during construction is precisly predicted that provides technical support to pass through bridge pile section and keeps the 4th ring road, bridge, surface structure and underground pipeline in normal use. It is referancial for the other projects.