| 链子崖危岩体防治工程的DDA模拟 |
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| 引用本文： | 张润峰,罗先启,姜清辉.链子崖危岩体防治工程的DDA模拟[J].中国民航学院学报,2008,26(2):38-42. |
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| 作者姓名： | 张润峰 罗先启 姜清辉 |
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| 作者单位： | [1]中国民航大学交通工程学院,天津300300 [2]三峡大学湖北省防灾减灾重点实验室,湖北宜昌443002 [3]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 |
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| 摘 要： | 阐述了二维非连续变形分析方法（DDA）与锚杆数值模型的基本原理，开发了考虑锚杆单元的DDA程序。针对链子崖危岩体及其防治工程的特点。建立了相应的DDA数值模型，计算得出了不稳定块体的位移趋势图。计算结果与实际监测结果较为吻合．证明了此方法的有效性及其在工程应用中的可行性．拓宽了DDA的工程应用领域。
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| 关 键 词： | 非连续变形分析 链子崖危岩体 锚杆 数值模型 |
| 文章编号： | 1001-5000(2008)02-0038-05 |
| 修稿时间： | 2008年1月18日 |
Numerical Simulation on Control Engineering of Dangerous Rock-Body of Lianziya with DDA |
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| ZHANG Run-feng,LUO Xian-qi,JIANG Qing-hui.Numerical Simulation on Control Engineering of Dangerous Rock-Body of Lianziya with DDA[J].Journal of Civil Aviation University of China,2008,26(2):38-42. |
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| Authors: | ZHANG Run-feng LUO Xian-qi JIANG Qing-hui |
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| Institution: | ZHANG Run-feng,LUO Xian-qi,JIANG Qing-hui ( 1 .College of Transportation Engineering. CA UC, Tianjin 300300, China ; 2.Hubei Provincial Key Laboratory of Preventing ＆ Mitigating Disasters, China Three Gorges Unirers ity, Yichang 443002, China; 3.State Key Laboratory of Water Resources and Hydropower Engineering Science. Wuhan University, Wuhan 430072, China) |
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| Abstract: | Described the principle of 2-D discontinuous deformation analysis （DDA） and the numerical model of bolt. The bolt was considered as a linearity spring element, with which the relative movements of blocks were restricted, and then the unstable blocks were reinforced. The corresponding program was developed. The method was used to simulate the reinforcement engineering of Lianziya dangerous rock mass. The displacement trend curves of the unstable blocks were obtained. The results were consistent with the monitoring data. It demonstrated the validity of numerical model and the feasibility of the application of the proposed method to practical engineering. |
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| Keywords: | DDA dangerous rock-body of Lianziya the bolt numerical model |
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