An analysis of the ground deformation caused by shield tunnel construction combining an elastic half-space model and stochastic medium theory

被引：56

作者：

Shi, Chenghua ^{[1
]}

Cao, Chengyong ^{[1
]}

Lei, Mingfeng ^{[1
]}

机构：

[1] Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China

来源：

KSCE JOURNAL OF CIVIL ENGINEERING | 2017年 / 21卷 / 05期

基金：

中国国家自然科学基金;

关键词：

shield tunnel; ground deformation; stochastic medium; Mindlin solution; SURFACE SETTLEMENTS; PREDICTION; MOVEMENTS;

D O I：

10.1007/s12205-016-0804-y

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The ground movement induced by the construction of shield tunnels affects the safety of nearby underground pipes and aboveground structures. Therefore, the reliable prediction of ground movement is important. In this paper, a model describing the interaction between soil and an EPB shield used in tunnels is presented, based on the classical elastic theory of Mindlin. In this model, the changing location of the working shield is considered. The equations describing the ground deformation around the tunnel caused by the additional force on the shield working surface and the frictional force between the outer surface of the shield and the surrounding soil are derived. The ground deformation caused by ground loss due to shield tunnel construction is derived using stochastic medium theory. Finally, this model is applied to two running tunnels, and the sensitivity of the ground deformation to the calculation parameters is discussed.

引用

页码：1933 / 1944

页数：12

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