Analysis of floating effect of groundwater on built underground structure

Abstract

With the continuous transformation of cities in China, urban land resources are becoming increasingly tense and traffic is becoming increasingly crowded. By building underground buildings such as subways, underground passages and underground shopping malls, we can not only make up for the shortage of existing space, but also rationally plan the urban layout. Therefore, it has become the first choice of urban construction in China. With the diversification of layout forms, the underground structure is increasingly developed in the depth direction, which highlights the anti-floating problem of underground structure. At present, the anti-floating design and construction of underground structures are not clearly defined by regulations in China, only the description of water buoyancy and requirements. In the actual underground structure engineering, the floating problem of underground structure is not uncommon. Therefore, how to design anti-floating measures is studied to ensure the reasonable application of anti-floating measures in the construction process.