摘要
树人学校堤防位于南京城区,为钢筋混凝土防洪墙,下穿长江过江通道。防洪墙填土复杂,地下存在障碍物,易造成渗水险情,且其地质条件复杂,防渗墙施工难度大。通过采取合理的施工顺序、引孔、预灌水泥黏土浆改良土体、信息化动态控制相关参数等措施,完成双排高喷桩防渗墙施工,并通过开挖、围井试验等对防渗墙质量进行检查。工程运行至今,未出现渗水险情,此施工措施可供类似工程参考。
The embankment of Shuren School is located in the urban area of Nanjing.It is a reinforced concrete flood control wall running through the passage of the Yangtze river.The soil filled in the flood control wall is complex with underground obstacles,thereby it is easy to cause seepage risk.Its geological conditions are complex.It is difficult to construct the cutoff wall.In the paper,The construction of double-row high jet pile cutoff wall is completed by adopting reasonable construction sequence,pipe-in hole and pre-filling cement clay slurry,improving the soil mass,and implementing information dynamic control relevant parameters and other measures.The quality of the cutoff wall is checked by excavation,well test,etc.There is no danger of water seepage since project operation till present.The construction measure can be used as reference for similar projects.
作者
李铭华
李益进
樊昆澎
LI Minghua;LI Yijin;FAN Kunpeng(Nanjing Yangtze River Management Office,Nanjing 210011,China;Nanjing Water Conservancy Bureau,Nanjing 210036,China)
出处
《水利建设与管理》
2020年第4期44-47,共4页
Water Conservancy Construction and Management
关键词
隧道扰动
防洪墙
杂填土
双排高喷桩
防渗墙
tunnel disturbance
flood control wall
miscellaneous fill
double-row high jet pile
cutoff wall
