| 灌溉诱发高速黄土滑坡的运动机理 |
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| 引用本文： | 王家鼎,肖树芳,张倬元.灌溉诱发高速黄土滑坡的运动机理[J].力学学报,2001,9(3):241-246. |
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| 作者姓名： | 王家鼎 肖树芳 张倬元 |
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| 作者单位： | 1. 西北大学地质系,西安710069;
2. 吉林大学地质工程系,长春130026;
3. 成都理工学院工程地质所,成都610059 |
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| 基金项目： | 国家自然科学基金重点项目资助(NO.49232050);中国博士后基金项目资助 |
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| 摘 要： | 针对黄土高原灌溉诱发的高速黄土滑坡所出现的各种迹象, 本文建立了滑坡体的运动模型。利用变分原理推导出了滑坡体的滑动轨迹、滑速、滑距以及黄土泥流 (液化物质)的流速公式。用这些公式对刘家峡、盐锅峡及八盘峡库区黑方台高速黄土滑坡群发生的全过程进行了模拟计算, 其结果与实际情况-致。
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| 关 键 词： | 灌溉诱发 黄土滑坡 蠕、滑动液化 黄土泥流 |
| 收稿时间： | 2000-04-25 |
| 修稿时间： | 2000-08-25 |
THE MECHANISM FOR MOVEMENT OF IRRIGATION-INDUCED HIGH-SPEED LOESS LANDSLIDE |
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| WANG Jiading,XIAO Shufang,ZHANG Zhuoyuan.THE MECHANISM FOR MOVEMENT OF IRRIGATION-INDUCED HIGH-SPEED LOESS LANDSLIDE[J].chinese journal of theoretical and applied mechanics,2001,9(3):241-246. |
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| Authors: | WANG Jiading XIAO Shufang ZHANG Zhuoyuan |
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| Institution: | 1. Northwest University,Xian 710069;
2. Jiling University,Changchun 130026;
3. Chengdu University of Technology,Chengdu 610059 |
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| Abstract: | A series of new views and approches to solving the practical problems of landslide is reviewed in the paper and the recent investigation prediction and prevention of the loess landslides were conducted in the Loess Plateau of China.Based on the existing evidences of irrigation-induced high-speep loess landslide the movement models of this kind of landslide are constructed. The formulae of sliding path, velocity,and distance of the landslide and speed of loess mud flow are deduced on the principle of variation. The whole process of Heifangtai loess landslide located in areas of Liujiaxia,Yanguoxia and Bapanxia reservoirs,Gansu Province are simulated and calculated from these formulae. The obtained results are consistent with the practical cases. |
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| Keywords: | Irrigation Loess landslide Creeping and sliding liquefaction Loess mud flow |
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