Abstract Dewatering during deep foundation pit construction causes ground settlement around the pit. As for foundation pits in areas with rich groundwater, dewatering would largely result in worse ground settlement and have negative impacts on nearby underground utilities. This paper, based on the Meizizhou river-crossing passage of the Nanjing YOG transportation axis project, gives a profile of the foundation pit construction and a layout of measuring points and monitoring results for the Yangtze River floodplain area. Through an analysis of the monitoring data, it presents the causes and law of ground settlement and impacts to underground utilities around the foundation pit and addresses the countermeasures against these problems.
Abstract：
Dewatering during deep foundation pit construction causes ground settlement around the pit. As for foundation pits in areas with rich groundwater, dewatering would largely result in worse ground settlement and have negative impacts on nearby underground utilities. This paper, based on the Meizizhou river-crossing passage of the Nanjing YOG transportation axis project, gives a profile of the foundation pit construction and a layout of measuring points and monitoring results for the Yangtze River floodplain area. Through an analysis of the monitoring data, it presents the causes and law of ground settlement and impacts to underground utilities around the foundation pit and addresses the countermeasures against these problems.
GE Zhao-Guo
.Field Test on the Impacts of Foundation Pit Construction on Ground Settlement and Underground Utilities in the Yangtze River Floodplain Area[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(5): 205-209
2014, Vol. 51 