Analysis and control of ground deformation of pipe-roofing and box-culvert construction under railway line
WANG Teng
WANG Xiuying
TAN Zhongsheng
WANG Yonghong
WU Liangyue
Abstract：Based on the numerical simulation model of pipe-roofing and box-culvert jacking construction,strata deformation law is analyzed during the construction process of culvert obliquely crossing a railway.The measures of controlling strata settlement are proposed,including the technology of"guiding with cable equipment,drilling followed with pipe"and controlling the position,speed and force of culvert axis during box-culvert jacking.At the same time,field monitoring of strata subsidence during jacking con-struction is also conducted.The results show that the subsidence of pipe-roof mainly occurs within the distance of 10mbefore excavation face.The strata deformation during construction is mainly caused by the squeezing of pipe-roofing and box-culvert on soil.The measures proposed in this paper can control strata settlement within 15 mm.
Keywords：tunnel engineeringpipe-roofingbox-culvertrailway line in operationground deforma-tionsettlement control
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 84-89 )