人民珠江2025，Vol.46Issue(9)：12-20,9.DOI:10.3969/j.issn.1001-9235.2025.09.002
人工中粗砂反滤料在大藤峡工程黏土心墙石渣坝中的应用
Application of Artificial Medium Coarse Sand Filter Material in Rock-fill Dam with Clay Core
摘要
Abstract
The Qianjiang sub-dam of the Datengxia Water Conservancy Project is a rock-fill dam with clay core,in which the fine-grained filter material between the clay core and the rock in the dam shell is selected from the artificial medium coarse sand produced by the engineering sand and gravel system.Since the quality of the clay core is directly affected by the performance of the filter material and the filling,it is necessary to inspect the performance of the raw material before the filter material filling and conduct filling and rolling tests after passing the inspection.Based on the test results,the optimal rolling parameter combination for artificial medium coarse sand filter material was determined to be a 40 cm layer thickness and 4-time rolling.According to the review test results after construction,the medium coarse sand filter layer constructed under the recommended parameters is qualified.The leakage detection results during the operation of the Qianjiang sub-dam show that there is no abnormal leakage in the dam body.关键词
反滤料/人工中粗砂/碾压试验/渗漏探测/大藤峡水利枢纽Key words
filter material/artificial medium coarse sand/rolling test/leakage detection/Datengxia Water Conservancy Project分类
建筑与水利引用本文复制引用
方朋,陈规划,李海峰..人工中粗砂反滤料在大藤峡工程黏土心墙石渣坝中的应用[J].人民珠江,2025,46(9):12-20,9.基金项目
广州市科技计划项目(2023A04J1023) （2023A04J1023）
