夯扩挤密混凝土桩复合地基在工程中的应用

摘要

以某工程为例，介绍了夯扩挤密混凝土桩复合地基的加固机理及施工工艺。实践证明，该地基加固方法，地基处理效果好，承载力高，沉降小，造价低，工期短，在吸收常规挤密桩地基处理工法的优点基础上极大的弥补了其他工艺的不足，能够更好的适应山区冲洪积地层特点，达到既提高地基土承载力、消除湿陷性，又能很好调整地基土的不均匀性等多重要求。%Based on a proj ect as an example,this paper introduces the reinforcement mechanism and construction technology on composite foundation of expansion compacting concrete pile.Practice proves that the foundation reinforcement method,the foundation treatment effect is good,and it has high bearing capacity,small settlement,low cost,short time limit.The method Greatly makes up for the deficiency of the other processes,it can adapt to the mountain diluvial stratigraphic characteristics.The beating capacity of foundation soil can be obviously improved,the collapsibili-ty can be effectively eliminated and the inhomogeneity of the soil can be adj usted.