| 节理岩体三维综合抗剪强度数值模拟研究 |
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| 引用本文： | 陈剑平,卢 波,谷宪民,范建华,程永辉.节理岩体三维综合抗剪强度数值模拟研究[J].岩石力学与工程学报,2006,25(7):1463-1468. |
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| 作者姓名： | 陈剑平 卢 波 谷宪民 范建华 程永辉 |
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| 作者单位： | [1]吉林大学建设工程学院,吉林长春130026 [2]中国科学院武汉岩土力学研究所,湖北武汉430071 [3]长江科学院土工所地基室,湖北武汉430010 |
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| 基金项目： | 国家高技术研究发展计划(863计划);高等学校博士学科点专项科研项目;面向21世纪教育振兴行动计划(985计划) |
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| 摘 要： | 采用不确定性理论建立的三维节理网络模拟技术是计算机技术在岩体力学领域应尉的一个重要方面。该技术利用野外不连续面现场地质调查所获得的原始数据，建立结构面几何参数分布的概率统计模型，进而应用蒙特卡罗模拟方法构筑不连续面在三维空间的组合形态，借助计算机生成三维网络模型。在建立三维网络模型的基础上，通过搜索不连续面和岩桥组合破坏的临界路径来确定连通率并提供三维综合抗剪强度指标，在搜索过程中应用了具有鲜明生物背景的遗传算法。
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| 关 键 词： | 岩石力学 三维网络 三维抗剪强度 物理搭接 遗传算法 临界路径 |
| 文章编号： | 1000-6915（2006）07-1463-06 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005-01-172005-08-15 |
NUNERICAL SIMULATION STUDY ON 3D COMPREHENSIVE SHEAR STRENGTH OF FRACTURED ROCKMASS |
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| CHEN Jianping, LU Bo, GU Xianmin, FAN Jianhua, CHENG Yonghui.NUNERICAL SIMULATION STUDY ON 3D COMPREHENSIVE SHEAR STRENGTH OF FRACTURED ROCKMASS[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(7):1463-1468. |
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| Authors: | CHEN Jianping LU Bo GU Xianmin FAN Jianhua CHENG Yonghui |
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| Affiliation: | 1. College of Construction Engineering, Jilin University, Changchun, Jilin 130026, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 3. Foundation Section of Geotechnique, Yangtze River Scientific Research Institute, Wuhan, Hubei 430010, China |
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| Abstract: | Applying stochastic theory to establish a 3D probability distribution model of discontinuities network is an important research subject of utilizing the computer programming technique in the field of rock mechanics. This technique obtains the original data of discontinuities from the in-situ investigation by sampling window method and creates a probability statistics distribution model of discontinuities geometric parameter; then, Monte Carlo method is adopted to build up a 3D discontinuities network model; finally, 3D discontinuities network model is obtained with the help of computer. Based on the 3D discontinuities network model, the persistence is determined and the 3D shear strength indexes are provided by searching for the critical path of combined failure of the discontinuities and rock bridge. During the process of search, genetic algorithm which has obvious biological background is applied. |
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| Keywords: | rock mechanics 3D network 3D shear strength physical connection genetic algorithm critical path |
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