Research on Construction Technology of Bulk Material and Concrete Upper-Lower Integrated Composite Pile for Thick Overburden and Deep-Buried Soft Soil Based on Experimental Analysis

摘要

This paper aims to solve the geological difficulty that soft soil layer exists below thick overburden by designing a novel pile type based on other treating methods, namely the rigid pile and the flexible pile are combined with the lower part as the plain concrete rigid pile having excellent bearing capacity and the upper part as the crushed stone pile capable of bringing the bearing capacity of the overburden into full play and reinforcing the drainage consolidation effect of the foundation, and also introducing the principles, characteristics and process of the technology. The technology is applicable to the treatment of the composite foundation with the geological condition of thick overburden and deep soft soil, has excellent application effect, high technological and economical benefits and wide popularization value in the actual engineering.