| 基于Hoek-Brown准则的小净距隧道节理围岩稳定性研究 |
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| 引用本文： | 张亚鹏,郑学贵,靳晓光,杨海清.基于Hoek-Brown准则的小净距隧道节理围岩稳定性研究[J].公路交通技术,2014(6):48-52. |
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| 作者姓名： | 张亚鹏 郑学贵 靳晓光 杨海清 |
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| 作者单位： | 1. 重庆大学土木工程学院,重庆,400045
2. 招商局重庆交通科研设计院有限公司,重庆,400067 |
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| 基金项目： | 重庆市应用开发项目，重庆市应用开发(重大)项目 |
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| 摘 要： | 结合重庆东水门长江大桥和千厮门嘉陵江大桥渝中区连接隧道小净距段施工，采用Hoek-Brown 强度准则估算出节理岩体的力学参数，建立基于Hoek-Brown 强度准则的有限元分析模型，对隧道施工过程中节理围岩的位移、应力和塑形区特征进行研究，获得隧道施工过程中围岩位移变形较大点以及应力集中区域，并提出监控量测和加强支护的范围。
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| 关 键 词： | 渝中连接隧道 应力应变 数值模拟 Hoek-Brown准则 |
Research on Stability of Joint Wall Rocks of Small Clearance Tunnels Based on Hoek-Brown Criterion |
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| ZHANG Yapeng,ZHENG Xuegui,JIN Xiaoguang,YANG Haiqing.Research on Stability of Joint Wall Rocks of Small Clearance Tunnels Based on Hoek-Brown Criterion[J].Technology of Highway and Transport,2014(6):48-52. |
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| Authors: | ZHANG Yapeng ZHENG Xuegui JIN Xiaoguang YANG Haiqing |
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| Institution: | ZHANG Yapeng, ZHENG Xuegui, JIN Xiaoguang, YANG Haiqing |
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| Abstract: | In combination with construction of small clearance distance sections of Yuzhong connecting tunnel between Chongqing Dongshuimen Yangtze River Bridge and Qiansimen Jialing River Bridge, this paper adopts Hoek-Brown strength criterion to estimate mechanical parameters of joint rock mass, establishes finite element analysis model based on Hoek-Brown strength criterion, studies features of displacement, stress and plastic zone of joint wall rocks during construction of tunnels to obtain the points with large displacement deformation and centralized area of stress of wall rocks during construction of tunnels, and proposes the range of monitoring measurement and reinforcing support. |
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| Keywords: | Yuzhong connecting tunnel stress and strain numerical simulation Hoek-Brown criterion |
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