Seepage Analysis of Drainage Decompression in Sloping Basement

Abstract

AbstractThe accidents of bottom floor cracking occur on underground structure due to uplift pressure. Especially in the southern rainy area, super large buildings on slope with high underground water level are in a complex seepage field and it is hard to deal with. In order to solve this problem, a residential district in Guangzhou as an example is analyzed through multiple stratigraphic level of 2D finite element method to the most dangerous conditions of the seepage field. The more reasonable and economic drainage decompression measures, " relief well + sand cushion", are put forward, which can meet the requirement of decompression. Finally, the monitoring data further validate the rationality of the method.