水文地质工程地质2025，Vol.52Issue(3)：134-143,10.DOI:10.16030/j.cnki.issn.1000-3665.202403046
降水强夯工艺处理淤泥质黏土场地的试验研究
Experiment of precipitation-driven dynamic compaction technology in the treatment of silty clay sites:A case study of Yangluo project in Wuhan
摘要
Abstract
Traditional soft foundation treatment methods often prove ineffective for muck clay soil foundations.This study investigated the reinforcement mechanism and construction process parameters of a novel dewatering-intensive tamping technique using the Yangluo project as a case study.The method integrated dynamic compaction with well-point dewatering,leveraging well-points to reduce excess pore water pressure generated by tamping while facilitating pore water discharge.During the Yangluo project,the groundwater level was lowered to 3 m below the ground surface within about 2 d before the first round of tamping,to 5 m within about 3 d before the second round of tamping,and to 5 m within about 6 d before the tamping,with the entire dewatering cycle of approximately 11 d.After the first round of tamping,the excess pore water pressure dissipated by 70％in about 7 d.The test results show that the dewatering-intensive tamping method can improve the consolidation of soft clay significantly in a short time,mitigates the"rubber soil"phenomenon,effectively treat the soil to a depth of 6.0 meters,and enhances the bearing capacity of the soft soil foundation(＞150 kPa).This study establishes a theoretical foundation and practical construction parameters for the treatment of soft soil foundations,particularly in China's coastal regions,where such conditions are prevalent.关键词
地基处理/降水/强夯/淤泥质黏土/施工参数Key words
foundation treatment/dewatering/dynamic compaction/silty clay/construction parameters分类
建筑与水利引用本文复制引用
兰明清..降水强夯工艺处理淤泥质黏土场地的试验研究[J].水文地质工程地质,2025,52(3):134-143,10.基金项目
中铁十一局集团有限公司科技项目(23-AII-15) （23-AII-15）
