| 应用力学机理的网络模拟预测隧洞超挖问题 |
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| 引用本文： | 吴继敏,孙少锐,魏继红. 应用力学机理的网络模拟预测隧洞超挖问题[J]. 岩土力学, 2004, 25(8): 1220-1224 |
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| 作者姓名： | 吴继敏 孙少锐 魏继红 |
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| 作者单位： | 河海大学 土木工程学院，江苏 南京 210098 |
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| 摘 要： | 概述了结构面的网络模拟技术的基本原理、方法和现状。在充分考虑岩石破裂的力学机理的基础上，结合野外测得的结构面特征参数，提出了一种基于力学机理分析的网络模拟技术，并把该技术运用到地下洞室的超挖预测中。通过某工程实例验证结果的准确性，预测的结果表明：考虑岩石破坏机理的网络模拟技术，能充分反映岩体结构面的几何特征，合理地预测地下洞室中的超挖问题。
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| 关 键 词： | 结构面 裂隙岩体 力学机理 网络模拟 洞室超挖 预测 |
| 文章编号： | 1000-7598-(2004)08-1220-06 |
| 收稿时间： | 2003-06-02 |
Forecast of overbreak in opening based on discontinuity surface mapping of mechanics mechanism |
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| WU Ji-min,SUN Shao-rui,WEI Ji-hong. Forecast of overbreak in opening based on discontinuity surface mapping of mechanics mechanism[J]. Rock and Soil Mechanics, 2004, 25(8): 1220-1224 |
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| Authors: | WU Ji-min SUN Shao-rui WEI Ji-hong |
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| Affiliation: | College of Civil Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | The basic principal, basic method and general situation of discontinuity surface mapping are summarized. Combined geodesic discontinuity surface parameters in the fields, a mapping method based on mechanics mechanism is put forward on the basis of considering mechanics mechanism of rock fracture. The technology is applied to forecast of overbreak in jointed rock masses openings. The veracity of the result will be tested by an engineering example. The result shows that discontinuity surface mapping considering mechanics mechanism of rock fracture can reflect the configuration of discontinuity and forecast properly overbreak in jointed rock masses openings. |
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| Keywords: | discontinuity surface jointed rock masses mechanics mechanism mapping opening overbreak forecast |
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