山区河道型水库滑坡涌浪对岸坡冲刷深度的研究

发布时间：2018-05-27 13:02

本文选题：滑坡涌浪 + 首浪高度　；参考：《科学技术与工程》2017年17期

【摘要】：三峡库区滑坡频发,滑坡产生的涌浪经常对库区岸坡造成破坏。通过山区河道型水库滑坡物理模型试验,研究不同产状滑坡产生的涌浪对三种不同组成粒径岸坡的最大冲刷深度。通过分析首浪高度与滑坡体宽度、厚度以及滑面倾角的关系;涌浪沿程衰减规律;岸坡最大冲刷深度和岸坡前涌浪高度的关系;运用回归分析得到首浪高度经验计算公式、沿程涌浪衰减公式、岸坡最大冲刷深度的经验计算公式。最终得到受滑坡体产状以及滑坡入水点到岸坡距离影响的岸坡最大冲刷深度经验计算公式。研究成果可为三峡库区岸坡的维护提供相应参考。
[Abstract]:Frequent landslides occur in the three Gorges Reservoir area, and the surge waves often cause damage to the bank slope of the reservoir area. Based on the physical model test of landslide in river reservoir in mountainous area, the maximum scour depth of three kinds of slope with different particle size caused by surge produced by different occurrence landslide is studied. By analyzing the relationship between the height of the first wave and the width, thickness and slope angle of the landslide, the attenuation law of the surge along the slope, the relationship between the maximum erosion depth of the bank slope and the height of the front surge on the bank slope, the empirical formula for calculating the height of the first wave is obtained by using regression analysis. The formula of wave attenuation along the slope and the empirical formula for calculating the maximum erosion depth of bank slope. Finally an empirical formula for calculating the maximum erosion depth of the slope affected by the occurrence of the landslide and the distance between the entry point of the landslide and the slope is obtained. The research results can provide the corresponding reference for the maintenance of bank slope in the three Gorges Reservoir area.
【作者单位】：重庆交通大学水利水运工程教育部重点实验室国家内河航道整治工程技术研究中心;
【基金】：国家自然科学基金(51479015) 西部交通建设科技项目(20113288141160)资助
【分类号】：P642.22

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