大功率振冲碎石桩在复合地基中的应用与分析

Application and Analysis of Composite Foundation High-Power Vibro-Replacement Gravel Plie Composite Foundation

介绍了振冲碎石桩的原理和施工工艺并结合工程实例,设定合理的桩长、桩径、桩距,通过试验桩成果确定主要施工参数,并对设计进行优化.最后通过复合地基载荷试验和标准贯入试验分析可知,该方法能有效处理地基液化,并提高地基承载力,具有一定的应用价值.

This paper briefly introduces the principle and construction technology of vibro- replacement gravel pile. Based on the actual example in the project, it sets some reasonable pile length, diameter pile, and pile spacing. The main construction parameters are determined by the test pile. it also optimizes the design. Finally, based on the composite foundation load test and standard penetration test analysis, it finds that the method can deal with the liquefaction of the foundation effectively, and improve the bearing capacity of the foundation, which has certain application value.