Nonlinear creep model of surrounding rock of long, large and deep tunnel

ZHU Zhen-de; ZHU Ming-li; RUAN Huai-ning; HUANG Qiang; HAN Li-jun

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Nonlinear creep model of surrounding rock of long, large and deep tunnel

更新时间：2026-06-25

- Nonlinear creep model of surrounding rock of long, large and deep tunnel
- Vol. 32, Issue S2, (2011)
- 作者机构：
  
  1. 温州大学建筑与土木工程学院,浙江,温州,325035
  2. 河海大学岩土工程研究所,南京,210098
  3. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏,徐州,221008
  4. 河南理工大学能源科学与工程学院,河南,焦作,454000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV741
- Online First：26 August 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
ZHU Zhen-de, ZHU Ming-li, RUAN Huai-ning, et al. Nonlinear creep model of surrounding rock of long, large and deep tunnel[J]. 2011, 32(S2).
DOI：

ZHU Zhen-de, ZHU Ming-li, RUAN Huai-ning, et al. Nonlinear creep model of surrounding rock of long, large and deep tunnel[J]. 2011, 32(S2). DOI：

摘要

针对锦屏二级水电站深埋长大隧洞（埋深为2 525 m，长为19 km，宽为13 m）围岩在开挖过程中呈现明显的流变劣化特征，采用CSS-283双向万能伺服试验机，对洞室围岩（软弱板岩）进行单轴压缩蠕变试验和剪切蠕变试验，引入流变参数是时间函数与强化函数，建立岩石非定常参数剪切蠕变模型和单轴压缩蠕变模型，并推广到三轴非线性流变模型，与试验结果对比基本吻合。最后，结合锦屏二级水电站深埋长大隧洞进行数值计算，得到该隧洞190 d开挖运行变形规律，以期为工程建设提供理论指导。

Abstract

The rock excavation in the deep and long tunnels of Jinping second stage hydropower station (depth 2 525 m

length 19 km

width 13 m) showed an obvious deterioration to its rheological properties. The CSS-283 bi-direction universal servo testing machine is used to conduct uniaxial compression creep test and shear creep test for the surrounding rock(soft slate). The respective rheological model of rock for shear and uniaxial compression creep processes is established by introducing the rheological parameters which are functions of hardening and time. This nonlinear creep model presents the expression of strain equation

which is a together of four individual strain parts

including the instantaneous elastic deformation

viscoelastic deformation

instantaneous plastic deformation and viscoplastic deformation. What’s more

those parameters in the strain equation are non-stationary

they are correlated with time and stress. Besides

the harding characteristic of rock samples is also considered during the behaviors of their creep process. Based on that the corresponding three-dimension model is therefore developed

the theoretical calculated results are well consistent with the test results. Finally

numerical simulation is performed to study the excavation of deep tunnels of Jinping hydropower station and the tunnel deformation after the 190 days’ excavation is also obtained. Accordingly

these investigation results can provide a theoretical guidance for the engineering construction

关键词

Keywords

references

Views

1671

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis of dynamic broken line model based on experimental data of anchor anti-pullout

Study of index and criterion for settlement control applicable to cut-and-fill subgrade in mountain-highway

Program implementation of nonlinear rheological model based on yield approach index piecewise function

Study of effect of platform width on dynamic response and failure mechanism of stepped slopes under earthquake

Numerical calculation of time effect deformations of tunnel surrounding rock in terms of water degradation

Related Author

LIU Si-si

ZHAO Ming-hua

LI Liang

GAO Cheng-lei

ZHAO Wen-zhong

LING Jian-ming

WANG Bing-xing

YANG Wen-dong

Related Institution

Institute of Geotechnical Engineering, Hunan University

School of Civil Engineering, Central South University

Institute of Geotechnical Engineering, Central South University of Forestry and Technology

Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University

Xinfen Expressway Construction Department of Hebei Province

AI问答

⁰