Analysis of Deformation Effect of the Shield Tunneling Crossing the Adjacent Existing Line
With the continuous development of subway construction,there are the situation of the new subway cross-ing the existing operating subway with the high risk.In order to ensure the safety of construction,it's important to study the deformation of the existing line structure during the underpass.The section between Gongye Dadao Sta-tion-Daganwei Station of Guangzhou Mrtro Line 10 through the the section between Shixi Station-Nanzhou Station of Guang-Fo Line is taken as an example,the deformation impact of the new tunnel construction on the existing line is analyzed and studied by means of automatic monitoring and numerical simulation on the basis of the analysis of the actual survey data.Before construction,formulating reasonable construction parameters and a series of protection measures are made to ensure the safety of the construction process.The actual monitoring data is sorted out and ana-lyzed,the deformation law is studied,the numerical simulation results are compared with the actual ones,and the reliability of the numerical simulation results is verified.Finally,the influence range of the new tunnel crossing is summarized,which provides a reference for the management and construction of the same type of projects.
metronumerical simulationthrough the existing tunnelsettlement law
国家科技期刊平台
NSTL
万方数据
