复合地基中碎石桩的桩端土挤密特征

Density Characteristics of Soil Under the Pile in Gravel Piled Composit Subgrade

利用原位测试获得的碎石桩和挤密桩间土资料评价碎石桩复合地基的处理效果同时,动力触探曲线也展现了各种不同的桩端土挤密特征.通过工程实例,划分了桩端土挤密类型,分析了影响因素.这不仅为控制复合地基施工质量提供了帮助,同时也为工程质量监理提供了依据.

Density of crushed stone pile and soil among the piles are obtained from the in-situ inspection to evaluate the result of crushed stone piled composite foundation, while the density characteristics of soil under the pile are shown by curve in penetration tests. Through a project example the density types of soil under the piles are classified according to it. The influence factors are analyzed herein. It provides assistance in controlling the process of construction, and provides basis for the supervision of engineering.