| 稀性泥石流沟道侵蚀试验研究 |
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| 引用本文： | 梁瑞锋,曹水合,王森.稀性泥石流沟道侵蚀试验研究[J].科学技术与工程,2015,15(23). |
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| 作者姓名： | 梁瑞锋 曹水合 王森 |
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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重点实验室,成都理工大学地质灾害防治与地质环境保护国家重点实验室 四川 成都,中国矿业大学 北京 |
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| 基金项目： | 中国地调局项目；国家自然科学基金 |
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| 摘 要： | 泥石流对沟道的侵蚀破坏作用比一般水流强烈,由于对其侵蚀深度的估计不足,往往导致防治工程的失效。通过室内等比模拟稀性泥石流沟道侵蚀试验来探究其规律。试验研究表明:坡度变化对侵蚀效果的影响大于流量的影响;在一定范围内,侵蚀深度随泥石流的磨损力增大呈线性增加,并给出经验公式。结合野外调查,对于松散堆积物源较厚的沟道流通区,该经验公式具备一定的适用性。
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| 关 键 词： | 稀性泥石流 沟道侵蚀 侵蚀深度 |
| 收稿时间： | 2015/3/10 0:00:00 |
| 修稿时间： | 2015/4/22 0:00:00 |
Experimental Study on Gully Erosion of Diluted Debris Flow |
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| LIANG Rui-feng,CAO Shui-he and WANG Sen.Experimental Study on Gully Erosion of Diluted Debris Flow[J].Science Technology and Engineering,2015,15(23). |
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| Authors: | LIANG Rui-feng CAO Shui-he and WANG Sen |
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| Institution: | State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Cheng du,ChinaSUniversitySofSMiningSBeijing |
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| Abstract: | Erosion damage effects of debris flow for the gully are more stronger than normal flow. Due to underestimate the erosion depth of debris flow, it often leads to the failure of prevention engineering. In this paper, in order to explore the law of gully erosion of diluted debris flow, indoor isometric simulation experiments were carried out. Experimental results show that (1)the influence of slope gradient is greater than flow on erosion effect; (2)Within a certain range, the erosion depth increases with the increase of force of wearing and the derivation formula was posed. Combined with field investigation, the prediction formula has a certain applicability in gully flow areas where loose deposits are thick. |
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| Keywords: | diluted debris flow gully erosion erosion depth |
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