A simplified prediction method for evaluating tunnel displacement induced by laterally adjacent excavations

被引：134

作者：

Zheng, Gang ^{[1
,2
,3
]}

Yang, Xinyu ^{[1
,2
]}

Zhou, Haizuo ^{[1
,2
]}

Du, Yiming ^{[1
,2
]}

Sun, Jiayu ^{[1
,2
]}

Yu, Xiaoxuan ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Key Lab Coast Civil Struct Safety, Minist Educ, Tianjin 300072, Peoples R China

[3] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2018年 / 95卷

关键词：

Excavation; Existing tunnel; Numerical parametric study; Semi-analytical method; Silty clay ground; BRACED EXCAVATIONS; WALL DEFLECTION; METRO TUNNELS; SOFT SOILS; MODEL; CLAY; CONSTRUCTION; DEFORMATION; BEHAVIOR; 2D;

D O I：

10.1016/j.compgeo.2017.10.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This investigation aimed to develop a simplified semi-empirical method of assessing the deformation of tunnels laterally adjacent to excavations. A finite element analysis using the hardening soil model with small-strain stiffness (HSS model) was performed to study the influence of the excavation depth, the horizontal displacements of retaining structures, and the relative tunnel locations on the responses of existing tunnels. A simplified model was developed based on the numerical results, and a database comprising 14 case histories was collected. Comparisons were made with the generated artificial data and the collected case histories to demonstrate the accuracy of the proposed model.

引用

页码：119 / 128

页数：10

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