山西省横泉水库大坝沉降分析

横泉水库采用碾压式均质土坝。大坝左岸与部分黄土台地、旧坝体相接,设计采用强夯处理其湿陷性。大坝沉降计算采用分层总和法,根据坝基厚度不同以及新旧坝体土压缩性的不同,分别选取黄土台地段、有原坝体段、新坝体段等计算断面进行计算,计算结果表明竣工后的沉降量小于1%,满足规范要求。

Analysis on the Dam Settlement of Hengquan Reservoir in Shanxi Province

The roller compacted homogeneous earth dam was adopted in Hengquan Reservoir.The left bank of the dam was connected with part of loess platform and old dam body,and the dynamic compaction was designed to treat its collapsibility.The layerwise summation method was used in the computation of dam settlement,and according to the different dam foundation thickness and the different soil compressibility of new and old dam bodies,the the loess platform section,original dam body section and new dam body section for the computation were selected as the computation sections,the results of the computation showed that the settlement quantity after completion was less than 1%,meeting the needs of standards.