An elastoplastic analytical solution for circular cavern considering combined thermo-hydro-mechanical action

ZHANG Yu-jun; ZHANG Wei-qing

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An elastoplastic analytical solution for circular cavern considering combined thermo-hydro-mechanical action

更新时间：2026-06-25

- An elastoplastic analytical solution for circular cavern considering combined thermo-hydro-mechanical action
- Vol. 34, Issue S2, (2013)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
  2. 中铁隧道勘测设计院有限公司,天津,300133
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV542
- Online First：19 November 2013，
  
  Published：2013
- 稿件说明：
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ZHANG Yu-jun, ZHANG Wei-qing. An elastoplastic analytical solution for circular cavern considering combined thermo-hydro-mechanical action[J]. 2013, 34(S2).
DOI：

ZHANG Yu-jun, ZHANG Wei-qing. An elastoplastic analytical solution for circular cavern considering combined thermo-hydro-mechanical action[J]. 2013, 34(S2). DOI：

摘要

基于已有的工作和Mohr-Coulomb屈服准则，建立了热-水-力三场共同作用下的圆形洞室弹塑性解析解，并分别在单力场、热-力场、水-力场、热-水-力场以及改变介质强度参数的条件下计算和比较了围岩中的应力分布、变化及塑性区范围。结果显示，温度场使得塑性区半径有所减小，但总的来看温度作用不明显；与仅有力作用时相比，孔隙水压力使得塑性区半径、径向应力和切向应力有较大幅度增长。

Abstract

On the basis of the existing work and Mohr-Coulomb yield criterion

an elasto-plastic analysis solution for circular underground cavern is established considering the combined thermo-hydro-mechanical action. Under the conditions of single stress field

thermo-mechanical field

hydro-mechanical field and thermo-hydro-mechanical field and changing strength parmeters of a medium

the distribution and change of stresses and plastic zones in the surrounding rock mass are computed and compared respectively. The results show that the temperature field makes the radius of plastic zone some decrease

but the action of temperature is not obvious on the whole; compared with the action of the single stress field

the pore water pressure makes the plastic zones

radial stresses and tangential stresses increase greatly.

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