| 隧道围岩稳定分析的最小安全系数法 |
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| 引用本文： | 李树忱,李术才,徐帮树.隧道围岩稳定分析的最小安全系数法[J].岩土力学,2007,28(3):549-554. |
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| 作者姓名： | 李树忱 李术才 徐帮树 |
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| 作者单位： | 山东大学,土建与水利学院,城市地下空间系,济南,250061 |
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| 基金项目： | 国家自然科学基金;山东省自然科学基金 |
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| 摘 要： | 关于岩体稳定评判准则至今尚未达到成熟的阶段，从稳定的定义至量化的标准等一系列基本问题尚未形成明确的体系。目前主要利用塑性区或位移扰动区来判断围岩的稳定范围。根据弹性理论，借助工程中安全系数的概念，利用Mohr-Coulomb和Drucker-Prager强度准则，建立基于单元的安全系数法，通过FLAC3D中的FISH语言实现了其求解过程。通过求解围岩稳定的安全系数，建立了评价围岩稳定的量化指标，给出了围岩稳定的安全范围，为锚固支护提供合理的支护参数。
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| 关 键 词： | 隧道 安全系数 围岩稳定 FLAC3D FISH语言 |
| 文章编号： | 1000-7598-（2007）03-0549-06 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2005-04-25 |
Minimum safety factor method for stability analysis of surrounding rockmass of tunnel |
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| LI Shu-chen,LI Shu-cai,XU Bang-shu.Minimum safety factor method for stability analysis of surrounding rockmass of tunnel[J].Rock and Soil Mechanics,2007,28(3):549-554. |
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| Authors: | LI Shu-chen LI Shu-cai XU Bang-shu |
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| Institution: | Department of Underground Space, School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | The judgment criterions of the rock mass stability have not arrived at round phase. A series of basic problems have not formed the code for design about the judge rule of the rockmass stability from the definition of stability to the quantitative standard. The range of the stability of surrounding rockmass can be defined by the plastic zone or the displacement changing zone at present. By using the elasticity theory and basic idea of the safety factor in the engineering, the paper develops a new safety factor method based on the element by the Mohr-Coulomb and Drucker-Prager rule. The safety factors are solved by FISH in the FLAC^3D. The quantity standard and the safety range of the rockmass stability are developed by the safety factor for the provided reasonable supporting parameter in the reinforced engineering. |
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| Keywords: | FLAC3D |
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