Research on Groundwater Control Technology in Construction Based on Foundation Pit Construction Condition

Abstract

With the rapid development of national economy and the restriction of urban construction land, high-rise buildings are mostly concentrated in urban centers. The construction and development of high-rise buildings promote the rapid development of deep foundation pit engineering, and the number and scale of foundation pit engineering are increasing day by day. In urban construction, a large number of high-rise buildings appear, and with the need of subway engineering and civil air defence works, deep foundation pit engineering in buildings is very common. In order to ensure the safe construction of deep foundation pit, groundwater must be controlled. If the groundwater is mainly phreatic water, vadose water or confined water with low water pressure, it should be blocked mainly. The specific technology is to construct a water-stop curtain around the foundation pit to stop the groundwater outside the foundation pit. If the groundwater is confined water with high pressure, measures should be taken to remove the water in the pit to prevent the foundation pit from surging. By analyzing the relationship between deep foundation pit engineering and groundwater, this paper summarizes the control methods of groundwater in deep foundation pit engineering.