澜沧江某库区滑坡涌浪物理模型试验

发布时间：2018-02-28 19:20

本文关键词： 澜沧江某水库滑坡涌浪物理模型试验首浪高度坝前涌浪高度沿程传播浪回归分析　出处：《长江科学院院报》2017年10期 　论文类型：期刊论文

【摘要】：为研究水库滑坡涌浪特征及传播规律,以澜沧江某水电站上游河道为模型,采用正交试验方法设计试验组次,制定了包括滑坡体规模、入水速度、水深、河面宽度的影响因素的试验方案,采用试验控制系统、量测系统开展了滑坡涌浪三维物理模型试验;以量纲分析为基础,借鉴了潘家铮涌浪公式的相关物理量结合方法,基于试验数据,采用多元回归分析法给出了最大首浪经验公式并拟合出了沿程传播浪的回归方程。结果表明:试验拟合推导的方程预测梅里石4#滑坡在不同失稳工况下最大首浪高度为90.37 m;坝前涌浪高度最大值为15.09 m。其成果可为滑坡体涌浪灾害预警及水电大坝安全保障提供依据。
[Abstract]:In order to study the characteristics and propagation law of landslide surge in reservoir, taking the upstream channel of a hydropower station in Lancang River as a model, the orthogonal test method is used to design the test group, which includes the scale of landslide body, the velocity of entering water, and the depth of water. The experimental scheme of influencing factors of river surface width is adopted to carry out the three-dimensional physical model test of landslide surge by using test control system and measuring system, and based on dimensionality analysis, the method of combining physical quantities of Pan Jiazheng's surge formula is used for reference. Based on the experimental data, The empirical formula of maximum first wave is given by multivariate regression analysis and the regression equation of propagating wave along the course is fitted. The results show that the equation derived by test fitting can predict the maximum first wave in different unstable conditions of Melis landslide. The height is 90.37 m and the maximum height of surge in front of dam is 15.09 m. The results can provide the basis for landslide body surge disaster early warning and hydropower dam safety guarantee.
【作者单位】：成都理工大学环境与土木工程学院;中国石油天然气集团塔里木油田公司天然气事业部;
【分类号】：P642.22

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