陕北地区黄土库岸塌岸分析预测——以××水库为例

Prediction of Bank Collapse of Loess Reservoir in Northern Shaanxi

结合水库工程实例,对库区的库岸类型进行分类,得出库区的主要塌岸类型为黄土库岸。对黄土塌岸的影响因素进行分析,根据水库的运行特点和库岸结构类型,选取长期预测的E.F.卡丘金公式法和图解法进行库区岸坡塌岸的初步预测。根据E.F.卡丘金公式法和图解法对库岸结构的适宜性,并结合工程类比,最终确定塌岸的分布范围、宽度以及规模,为水库塌岸的处理提供地质依据,同时对陕北地区同类黄土库岸的塌岸预测起到一定的借鉴作用。

This paper combines with the example of reservoir engineering,the types of reservoir banks in the reservoir area are classified,and the main types of bank collapse in the reservoir area are loess reservoir banks.According to the characteristics of reservoir operation and the types of reservoir bank structure,the influencing factors of loess bank collapse are analyzed to predict of bank collapse in reservoir area by selecting E.F.Kachukin formula method and graphic method for long-term prediction.According to the suitability of the two methods to the structure of reservoir bank and the engineering analogy,the distribution range,width and scale of bank collapse are finally determined,to provide geological basis for the treatment of reservoir bank collapse,it can be used for reference in the prediction of bank collapse of similar loess reservoirs in northern Shaanxi at the same time.