Initial geostress field characters in mountain with different slopes and its influence on underground projects

YU Da-jun; ZHU Wei-shen; YONG Min; WANG Li-ge; ZHANG Dun-fu; ZHOU Kui; XIANG Lü

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Initial geostress field characters in mountain with different slopes and its influence on underground projects

更新时间：2026-06-25

- Initial geostress field characters in mountain with different slopes and its influence on underground projects
- Vol. 32, Issue S1, (2011)
- 作者机构：
  
  山东大学岩土与结构工程研究中心,济南,250061
- 作者简介：
- 基金信息：
- DOI：
  CLC： U453.2
- Online First：16 May 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
YU Da-jun, ZHU Wei-shen, YONG Min, et al. Initial geostress field characters in mountain with different slopes and its influence on underground projects[J]. 2011, 32(S1).
DOI：

YU Da-jun, ZHU Wei-shen, YONG Min, et al. Initial geostress field characters in mountain with different slopes and its influence on underground projects[J]. 2011, 32(S1). DOI：

摘要

在高山峡谷地区修建地下工程，山体坡度不同时会对初始地应力有十分重要的影响。通过数值分析研究了当山坡坡角分别为30°、45°和60° 时，在重力场条件下山体中在垂直向和水平向典型剖面中初始地应力分布的特点。经比较后认为，若在山体中取其直接埋深算出的垂直向地应力数值与实际值相差很大。山坡越陡，差值越大。随后，又在45°的山体中设定开挖2个不同位置的洞室，并采用了节理岩体的损伤-断裂模型做数值分析，比较二者的稳定性状况。结果发现，其围岩的损伤度十分不对称，而且离坡面（或坡脚）越近，则破损区越严重。并提出了相应的结论和建议

Abstract

When the construction of underground projects in alpine and gorge region is being conducted

different mountain slopes will have important effects on initial geostress distribution. In this paper

the initial geostress distribution of mountain at vertical and horizontal typical profiles were studied in the gravity field by numerical analysis

with conditions of slopes being 30°

45° and 60°

respectively. After the comparison

it can be known that the calculated values of the vertical geostress which were obtained from direct depth of the mountains varied from the actual values greatly. The steeper the slope is

the greater the differences are. Then two caverns at different positions were set to excavation in the mountain

with slope of 45°in the computation models and the damage - fracture model of joint rock was adopted to analyze the rock stability for the two conditions. The results show that the damage degree of surrounding rock is very asymmetric; and the more close to the slope surface (or slope toe)

then the more serious the damage degree is. Finally

the corresponding conclusions and recommendations are proposed.

关键词

Keywords

references

Views

1197

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Studies of surrounding rock stress change character and rockburst prediction of underground cavern during stepped excavation

Numerical analysis of excavation damaged zone of underground caverns induced by excavation blasting

Calculation method of sliding surface stress based on segmented sliding surface stress measurement system

Relationship between particle micro and macro mechanical parameters of parallel-bond model

Structure effects of random joint network rock mass on seismic response of underground caverns

Related Author

QIU Dao-hong

ZHANG Le-wen

XUE Yi-guo

SU Mao-xin

XIAO Ming

ZHANG Yu-ting

CHEN Jun-tao1

TIAN Hua

Related Institution

Research Center of Geotechnical and Structural Engineering, Shandong University

武汉大学水资源与水电工程科学国家重点实验室，武汉 430072, 2. 武汉大学水工岩石力学教育部重点实验室，武汉 430072, 3. 河北省电力勘测设计研究院

State Key Laboratory of Intelligent Construction and Maintenance for Geotechnical and Tunnel Engineering under Extreme Environments, Southwest Jiaotong University

China Northwest Research Institute Co., Ltd., of CREC

China Railway Academy Co., Ltd.

AI问答

⁰