| 一种基于数值流形法的模拟岩体结构面新方法 |
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| 引用本文： | 李恩璞,蔡永昌,李耀基,朱合华.一种基于数值流形法的模拟岩体结构面新方法[J].同济大学学报(自然科学版),2014,42(10):1473-1479. |
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| 作者姓名： | 李恩璞 蔡永昌 李耀基 朱合华 |
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| 作者单位： | 1. 同济大学土木工程学院,上海200092;同济大学岩土及地下工程教育部重点实验室,上海200092
2. 云南磷化集团有限公司,云南昆明,650600 |
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| 基金项目： | 国家科技支撑计划（2011BAB08B01）,长江学者和创新团队发展计划资助（IRT1029）,西部交通建设科技项目（2011ZB04） |
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| 摘 要： | 利用数值流形方法可以方便有效地统一处理连续和非连续变形分析的优点,借鉴Goodman单元的相关理论,提出一种基于数值流形方法的模拟节理、裂隙和软弱夹层等岩体结构面的新方法,极大简化了含岩体结构面的复杂岩体工程的前处理及分析过程.算例分析表明了该方法的正确性和有效性.
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| 关 键 词： | 岩体结构面 数值流形方法 有限覆盖 节理单元 |
| 收稿时间： | 2013/10/9 0:00:00 |
| 修稿时间： | 2014/7/22 0:00:00 |
A New Method for Simulation of Rock Discontinuity with Numerical Manifold Method |
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| LI Enpu,CAI Yongchang,LI Yaoji and ZHU Hehua.A New Method for Simulation of Rock Discontinuity with Numerical Manifold Method[J].Journal of Tongji University(Natural Science),2014,42(10):1473-1479. |
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| Authors: | LI Enpu CAI Yongchang LI Yaoji and ZHU Hehua |
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| Institution: | College of Civil Engineering, Tongji University, Shanghai 20092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 20092, China;College of Civil Engineering, Tongji University, Shanghai 20092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 20092, China;Yunnan Phosphate Chemical Group Co.Ltd., Kunming 650600, China;College of Civil Engineering, Tongji University, Shanghai 20092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 20092, China |
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| Abstract: | The numerical manifold method (NMM) provides a uniform framework for analyzing both continuum and discontinuum. Incorporating the advantages of the NMM formulations and the well known Goodman element, a novel method for modeling the rock discontinuities is developed. The method which is particularly suitable for modelling joint or weak layer in rock, is proved to greatly simplify the preprocessing and analysis of the jointed rock mass, as a result, it is generally applicable for rock mechanics and rock engineering. Several test examples illustrate the correctness and effectiveness of the proposed method. |
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| Keywords: | rock discontinuity numerical manifold method finite cover joint element |
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