Open AccessNumerical simulation on ground deformation characteristics during double-line shield tunnel crossing airport runway
Author(s) -
Wenqi Ding,
Zhili Shao,
Xingbang Lu,
Yu Qiao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/741/1/012016
Subject(s) - runway , shield , finite element method , deformation (meteorology) , structural engineering , computer simulation , curvature , settlement (finance) , superposition principle , line (geometry) , excavation , engineering , geotechnical engineering , geology , geometry , computer science , mathematics , simulation , mathematical analysis , petrology , oceanography , archaeology , world wide web , payment , history
Using Peck empirical formula and superposition method, the variation of ground settlement, uneven settlement and ground curvature caused by single-line and double-line shield tunnel are obtained. The finite element numerical simulation method is used to analyze the construction process of shield tunnel below the airport runway. Considering the existence of the runway structure and the successive excavation effects of the left and right line, the comparison of simulation and empirical formula is analyzed. Based on this, the deformation Characteristics of the runway is derived under different buried depths and different ground loss ratios.