| 三峡水库塌岸影响因素的物理模拟研究 |
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| 引用本文： | 白建光,许强,汤明高,黄润秋.三峡水库塌岸影响因素的物理模拟研究[J].中国地质灾害与防治学报,2007,18(1):90-94. |
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| 作者姓名： | 白建光 许强 汤明高 黄润秋 |
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| 作者单位： | 成都理工大学,地质灾害防治与地质环境保护国家专业实验室,四川,成都,610059 |
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| 基金项目： | 教育部霍英东教育基金会高等院校青年教师基金;高等学校优秀青年教师教学科研奖励计划及三峡库区塌岸预测与防治专题资助项目 |
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| 摘 要： | 水库蓄水后库岸边坡失稳破坏是一个复杂的过程,其塌岸模式及塌岸规模往往受多种因素的影响。文章在对三峡库区典型塌岸段地质条件调查研究的基础上,利用物理模拟手段,系统地研究了水库岸坡土体材料、岸坡坡角、库水位、降雨强度对岸坡流失量的影响。研究结果表明,三峡水库存在冲磨蚀型及滑移型两种主要的塌岸模式。岸坡土体流失量与岸坡坡角、岸坡物质组成、降雨强度等成正相关关系,且各因素对流失量的影响程度不同,岸坡物质组成及岸坡坡角是主要影响因素。各因素对岸坡流失量的影响还存在临界值,超过此临界值时,该因素对塌岸的影响将变得非常明显。由于物理模拟经历的时间较短,试验所得规律仅适用于水库蓄水后一定时期内塌岸的研究。
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| 关 键 词： | 水库塌岸 物理模拟 流失量 影响因素 三峡水库 |
| 文章编号： | 1003-8035（2007）01-090-05 |
| 收稿时间： | 2006-06-13 |
| 修稿时间： | 2006-10-25 |
Study on influence factors of bank collapse in the Three Gorges Reservoir with physical modelling |
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| BAI Jian-guang,XU Qiang,TANG Ming-gao,HUANG Run-qiu.Study on influence factors of bank collapse in the Three Gorges Reservoir with physical modelling[J].The Chinese Journal of Geological Hazard and Control,2007,18(1):90-94. |
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| Authors: | BAI Jian-guang XU Qiang TANG Ming-gao HUANG Run-qiu |
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| Institution: | Natlonal Laboratory of Geohazard Prevention and Geoenvimnment Protection, Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | Collapse of bank is a complex process after reservoirs store water,and the model and scales of bank collapse are influenced by many factors.On the basis of geological condition investigation about typical areas of bank collapse in the Three Gorges Reservior,influence of loss amount resulted by soil material,angle of the slope,water level of the reservoir and intensity of the rain is researched by means of physical modelling.It is shown that there are two kinds of primary model of bank collapse including bank collapse of erosion type and sliding type.The relations between amount of soil loss with angle of slope,physical substance of bank and intensity of rain are positively related as a whole.The degree of impact of loss amount resulted by every factor is different,and physical substance of bank and angle of slope are the dominating factors.There is a critical value of every factor that influences on the loss amount.If it is more than this value,the factor will influence on bank collapse more clearly.Because it is short to perform the physical modelling experiment,the law got in the experiment is adequate for the research of bank collapse only in some time after reservoirs store water. |
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| Keywords: | reservoir bank collapse physical modelling loss amount influence factor the Three Gorges Reservior |
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