Dynamic Deformation of the Oversized Cross-Section Rectangular Pipe-Jacking Tunnel
Wang Xiaorui
Zhou Feng
Zhang Zhen
Guo Jia
Abstract：This paper discusses the engineering of a rectangulan pipe jacking project for the construction of the Shenzhuang Road-Shangding Road underpass in Zhengzhou .Roads inevitably deform excavation of a new large tunnel nearby in an urban un-derground engineering project.It is of great significanceto analyze the characteristics of ground surface deformation and their laws change to reduce the environmental impact of tunnel construction.Combined with the engineering practice of Zhengzhou Shen Zhuang Road-Shangding Road Underpass in Zhongzhou road tunnel engineering of rectangular pipe jacking.In-situ meas-ured statistical analysis of ground surface deformation and the numerical simulation method of dynamic process of jacking pipe jacking construction analysis,it is found in this study the laws of the surface variation in the process of tunnel excavation.Nu-merical simulation can be applied to predict the influence of pipe jacking construction of existing road,to optimize the construc-tion method and technical parameters,on basis of which the corresponding control measures can be put forward.The effective-ness of the forecast analysis has been verifiedthrough the engineering deformation monitoring data in this study.
Keywords：tunnel projectrectangular pipe jackingdeformationmonitoringnumerical simulationengineering geology.
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1959-1965 )