摘要
本文所述之工程实例为利用现有的振动打桩设备加以改造,使之能起到振动、水冲、灌注和挤密的作用,在地基中形成卵石夹砂的桩体,与被挤实的淤泥土共同组成复合地基以承受上部的荷载。文章介绍了本工程的设计和施工概况。为了验证本文提出的软基加固方法,在现场进行了载荷试验和沉降观测。本工程主体建筑砌块完工后还进行了技术鉴定,鉴定的结论意见是肯定的。
This paper describs a case study of foundation engineering for forming sand and oval stone piles through the action of quaking, water striking,pouring and packing by a pile driver. The piles and packking mud are combined, forming a compound foundation to support the upper loads. This paper introduces the design and construction of this engineering. In order to check this method for consolidating the soft foundation,the loading test and the settlement observation in site are made. After the construction work,there has been an organized technical identifying meeting. The result out of the identification is positive.
关键词
砂桩
复合地基
荷载
沉降
卵石
muck
sand and oval stone piles
compound foundation
loading test
settlement observation
