Coupled Fluid-Mechanical Analysis of Settlement and Stability of Subway Tunnel

李建波; 陈健云; 李静

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Coupled Fluid-Mechanical Analysis of Settlement and Stability of Subway Tunnel

更新时间：2025-12-11

- Coupled Fluid-Mechanical Analysis of Settlement and Stability of Subway Tunnel
- Issue 4, Pages: 441-446(2008)
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  CLC： 451
- Published：2008
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[1]李建波,陈健云,李静.渗流场对地铁隧道沉降与受力影响的流固耦合分析[J].防灾减灾工程学报,2008(04):441-446.

李建波, 陈健云, 李静. Coupled Fluid-Mechanical Analysis of Settlement and Stability of Subway Tunnel[J]. 2008, (4): 441-446.
[1]李建波,陈健云,李静.渗流场对地铁隧道沉降与受力影响的流固耦合分析[J].防灾减灾工程学报,2008(04):441-446. DOI：

李建波, 陈健云, 李静. Coupled Fluid-Mechanical Analysis of Settlement and Stability of Subway Tunnel[J]. 2008, (4): 441-446. DOI：

摘要

地下水问题是富水地层地下结构设计与施工中普遍存在的问题。为探讨地下水流动对软岩地铁隧道的稳定性及衬砌支护受力的影响

根据流固耦合理论

采用三维快速拉格朗日有限差分方法

在不同地下水位及排水边界条件下

对开挖后洞室周边场地位移、应力场、孔隙水压力的分布情况进行了综合分析。结果显示

由渗流引起的渗透力一定程度上会增加隧道周边场地变形及衬砌应力。从围岩-支护结构共同作用的原理出发

验证了隧道开挖与支护结构设计时需要考虑渗流效应

反映了地下水确实对隧道稳定性有着重要影响。

Abstract

The groundwater problem in underground engineering is an important issue influencing the stability of subway tunnel.Based on the coupled fluid-mechanical theory

the finite difference method of fast Lagrangian analysis of continua is applied to analyze the fields of displacement

stress

and pore- pressure in the surrounding soils of an excavated tunnel under various conditions of groundwater levels

different depth of the tunnel.It can be concluded from the numerical simulation of excavation that the groundwater flow have an obvious effects on the distributions of displacement

stress and pore-pressure in the surrounding soil.The seepage forces of groundwater will increase the displacement in the soil around the tunnel and the stress in the tunnel linings.According to the basic deformation compatibility condition of surrounding soils and supporting structure of tunnels

the necessity of considering the seepage effect of ground water in design of tunnel excavation and its supporting structures has been proved in this paper to demonstrate the important effects of groundwater on the stability of tunnels.

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references

隧道开挖问题的水力耦合计算分析 [J]. 吉小明,王宇会. 地下空间与工程学报 . 2005(06)

确定隧道外水压力的地下水流模型——读《深埋隧道外水压力计算的解析-数值法》一文随笔 [J]. 陈崇希,刘文波,彭涛. 水文地质工程地质 . 2002(05)

深埋隧道外水压力计算的解析—数值法 [J]. 王建秀,杨立中,何静. 水文地质工程地质 . 2002(03)

对我国隧道工程中2个问题的思考 [J]. 王建宇. 铁道建筑技术 . 2001(04)

TB 10003-2005. 铁路隧道设计规范 [S]. 2005

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