论文部分内容阅读
一、基本情况 1、工程情况慈溪县杜湖水库位于杭州湾南岸,建筑在原杜湖湖泊中间的软粘土地基上。坝基土层为第四纪滨海相溺谷间断沉积。坝基采用砂井砂垫层处理,处理面积2.3万平方米。水库的集雨面积为20平方公里。大坝为斜墙式土坝(近似均质土坝),坝高为17.5米,坝顶高程21.0米,顶宽4米,坝底宽80米,平均坝长为440米,正常蓄水位14.0米,总库容2370万立方米,有效库容1700万立方米,实灌农田面积16万亩。土坝上游坡为1:3,1:25,下游坡为1:2,
I. Basic Information 1. Project Situation The Duhu Reservoir in Cixi County is located on the soft clay ground in the middle of Du Lake and Lake in the south bank of Hangzhou Bay. Dam foundation soil for the Quaternary coastal coastal drowning valley deposition. Dam foundation sand sand cushion treatment, processing area of 23000 square meters. The rainwater catchment area of the reservoir is 20 square kilometers. The dam is inclined wall type earth dam (approximate homogeneous earth dam), the dam height is 17.5 meters, the crest elevation is 21.0 meters, the top width is 4 meters, the dam bottom is 80 meters wide and the average dam length is 440 meters. The normal water level 14.0 meters, total storage capacity of 23.7 million cubic meters, effective storage capacity of 17 million cubic meters, real irrigation farmland area of 16 acres. The upstream slope of earth dam is 1: 3, 1:25, the downstream slope is 1: 2,