中风化粉砂质泥岩基坑涌水综合治理施工技术
Comprehensive Construction Technology for Water Inflow Control in Weathered Silty Mudstone Foundation Pits
刘帮 1刘荣旭 1黎晓琮 1胡湘 1李林刚 1楚英元2
作者信息
- 1. 中国建筑第四工程局有限公司,广东广州 510665
- 2. 八冶建设集团有限公司,甘肃兰州 733000
- 折叠
摘要
基坑涌水是基坑塌陷的风险之一.为了避免基坑塌陷,针对中风化粉砂质泥岩基坑涌水存在出水急、出水量大的实际情况,提出"注浆+明排"的综合治理方案,并优化注浆位置、深度,调整集水井位置及平面尺寸.方案实施结果表明:通过增加注浆深度、加密注浆孔位,增加明排集水井能够有效减少基坑渗水、涌水,对于保证施工安全具有十分重要的意义.
Abstract
Water inflow from foundation pit is one of the risks of foundation pit collapse.In order to avoid foundation pit collapse,a comprehensive treatment plan of"grouting+open drainage"was proposed in view of the actual situ-ation of rapid water outflow and large water outflow in the weathered silty mudstone foundation pit,and the grou-ting position and depth were optimized and the concentration was adjusted.Well location and plan dimensions.The implementation results of the plan show that by increasing the grouting depth,densifying the grouting hole posi-tions,and adding open drainage wells,water seepage and water inflow in the foundation pit can be effectively re-duced,which is of great significance for ensuring construction safety.
关键词
基坑涌水/中风化粉砂质泥岩/注浆/明排Key words
water inflow from foundation pit/weathered silty mudstone/grouting/open row引用本文复制引用
出版年
2024
NETL
NSTL
万方数据