Engineering application of PST pipe pile composite foundation in karst area
Based on the research on the formation conditions of high rise building foundation with large soil filling thickness,karst development of underlying bedrock and multi-layer beaded karst caves,a rigid composite foundation with PST pipe piles was proposed.The treatment design and construction of composite foundation were guided by test and monitoring methods,and the rationality of the design was verified according to site test pile data.After completion of construction,static load test was used to check the quality of composite foundation,and settlement monitoring was carried out continuously.The results show that PST pipe-pile composite foundation in karst area is a feasible method to treat the foundation of high-rise buildings,which can meet the requirements of foundation strength,deformation and stability of high-rise buildings.
NETL
NSTL
万方数据
