改进的三维两段法水库塌岸预测研究  

Improved 3D“Two Stage Method”for Predicting Reservoir Bank Collapse

作　　者：陈艳国 仇道健 王贵军 CHEN Yanguo;QIU Daojian;WANG Guijun(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China)

机构地区：[1]黄河勘测规划设计研究院有限公司,河南郑州450003

出　　处：《人民黄河》2022年第12期112-116,共5页Yellow River

摘　　要：二维水库塌岸预测方法存在计算量大、精度偏低等问题,尤其针对库岸地形起伏、曲率过大等因素导致的塌岸叠加预测精度较差。为有效解决上述问题,利用CATIA三维建模平台,选取反映波浪作用弱的两段法,将水下岸坡进行条分处理,建立水库塌岸三维图解模型,高精度求解塌岸线和塌岸体积。结果表明:与二维预测方法相比,该模型可快速、高精度地进行塌岸宽度、塌岸体积计算,尤其在库岸地形起伏较大和多面临水因素叠加时的塌岸预测中有突出优势,为水库塌岸预测研究提供了新思路。The existing two⁃dimensional prediction method of reservoir bank collapse has the problems with the characteristics of large amount of calculation and low accuracy.Especially in the large undulating or large curvature area of the reservoir bank,the bank collapse factors are superimposed,and the prediction accuracy is poor.In order to effectively solve the above problems,the paper used CATIA 3D modeling plat⁃form and selected the Two Section Method that reflected the weak wave action to slice the underwater bank slope,establish a 3D graphic mod⁃el of the reservoir bank collapse and predict the bank collapse line and collapse volume with high precision.According to the research results and compared with the two⁃dimensional method,the model can quickly and accurately calculate the bank collapse width and volume.Espe⁃cially when the topography of the reservoir bank has larger undulations and multi⁃sided waterfronts,this method has more prominent advanta⁃ges in the prediction of bank collapse and provided a new idea for the study of reservoir bank collapse prediction.

关 键 词：水库塌岸 两段法 CATIA 条分 三维塌岸计算 

分 类 号：TV221.2[水利工程—水工结构工程]