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| 穿越古滑坡川主寺隧道围岩破坏特征及稳定性研究 | |
| 引用本文： | 刘海,沈军辉,陈华,王旭东,邴国林. 穿越古滑坡川主寺隧道围岩破坏特征及稳定性研究[J]. 现代隧道技术, 2012, 49(1): 53-59 |
| 作者姓名： | 刘海 沈军辉 陈华 王旭东 邴国林 |
| 作者单位： | 1. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室,成都610059;安徽省公益性地质调查管理中心,合肥230040 2. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室,成都,610059 3. 安徽省公益性地质调查管理中心,合肥,230040 |
| 基金项目： | 成都理工大学优秀创新团队培育计划(编号:HY0084) |
| 摘 要： | 文章以川主寺隧道所处的工程地质条件为基础,通过现场调研分析了隧道围岩变形破坏形式主要为坍塌、掉块以及剥落.围岩稳定性三维有限元数值模拟结果显示,碎裂围岩自稳能力差,围岩变形以弹塑性变形、松弛变形为主；H型钢拱架支护结构对碎裂围岩稳定性起到积极的作用,并通过典型洞段现场位移监测数据分析结果得以证实. |
| 关 键 词： | 公路隧道 围岩变形 围岩稳定性 有限元数值模拟 |
A Study of the Failure Features and Stability of Surrounding Rock of the Chuanzhusi Tunnel Passing Through the Ancient Landslide |
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| Liu Hai , Shen Junhui , ChenHua , Wang Xudong , Bing Guolin. A Study of the Failure Features and Stability of Surrounding Rock of the Chuanzhusi Tunnel Passing Through the Ancient Landslide[J]. Modern Tunnelling Technology, 2012, 49(1): 53-59 | |
| Authors: | Liu Hai Shen Junhui ChenHua Wang Xudong Bing Guolin |
| Affiliation: | 1(1 State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection,Chengdu University of Technology,Chengdu 610059;2 Public Geological Survey Management Center in Anhui Province,Hefei 230040) |
| Abstract: | Based on the geological conditions of the Chuanzhusi Tunnel,which passes through an ancient landslide,a site investigation found that the surrounding rock deformation and failure modes of the tunnel are mainly tunnel collapse,spalling and dropping.The three-dimensional finite element numerical simulation of the stability of surrounding rock by FLAC3D showed that the self-stability of the fractured rock mass is poor and the deformation modes are mainly of the elastic-plastic and relaxation varieties.Support with an H-beam steel framework played a positive role regarding the stability of fractured surrounding rock. |
| Keywords: | Chuanzhusi Tunnel Deformation and failure of surrounding rock Stability of surrounding rock FEM numerical simulation |
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