| 隧道应力扰动区地应力测试及反演研究 |
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| 引用本文： | 白世伟,韩昌瑞,顾义磊,王贵宾,李丹.隧道应力扰动区地应力测试及反演研究[J].岩土力学,2008,29(11):2887-2891. |
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| 作者姓名： | 白世伟 韩昌瑞 顾义磊 王贵宾 李丹 |
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| 作者单位： | 1. 中国科学院武汉岩土力学研究所，武汉 430071；2. 重庆大学 西南资源开发及环境灾害控制工程教育部重点实验室，重庆 400030 |
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| 基金项目： | 国家自然科学基金重点项目
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| 摘 要： | 通过对隧址区地应力的调查和现场测量，初步确定该区域存在较大的构造应力，但因岩芯破碎，只获得隧道应力扰动区的应力实测值。为此在三维数值模拟过程中模拟了河谷的下切过程，以反映地形对应力场的影响，并采用试算的方法调整侧压系数，从而确定合理的初始应力，使试算结果与现场测量的数据基本吻合，最终确定出合理的侧压系数和初始地应力的数值，弥补了现场测量的不足。研究结果表明，隧道轴线各点的地应力与隧道的埋深、地形地貌有关，且在K42段处于极高的应力状态，为隧道的开挖、支护及稳定性分析提供了科学依据。
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| 关 键 词： | 深埋长隧 构造应力 应力扰动区 地应力 反演 |
| 收稿时间： | 2008-04-16 |
Research on crustal stress measurement and inversion of stress disturbed area of a tunnel |
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| BAI Shi-wei,HAN Chang-rui,GU Yi-lei,WANG Gui-bin,LI dan.Research on crustal stress measurement and inversion of stress disturbed area of a tunnel[J].Rock and Soil Mechanics,2008,29(11):2887-2891. |
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| Authors: | BAI Shi-wei HAN Chang-rui GU Yi-lei WANG Gui-bin LI dan |
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| Institution: | 1. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. China Education Ministry’s Key Lab. for the Exploitation of Southwest Resources and the Environmental Disaster Control Engineering, Chongqing University, Chongqing 400030, China |
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| Abstract: | Through investigation and in-situ measurement of crustal stress in tunnel location, rather large tectonic stress is ascertained in the tunnel region at first. Because of core sample break, only stress of disturbed area is measured in the tunnel. In the process of 3-dimension numerical modeling, the course of vertical erosion by the Wujiang River is modeled in order to reflect the effect of topographic form on crustal stress. And using the method of pilot calculation to adjust coefficient of horizontal press... |
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| Keywords: | long-deep tunnel tectonic stress crustal stress stress disturbed area numerical inversion |
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