土工基础

›› 2012, Vol. 26 ›› Issue (6): 62-64.

• 工程实录 • 上一篇    下一篇

探讨复合地基工作性状研究的新方法

杨 柳1,王丽芳2,张伟园1,侯惠锦1   

  1. （1.河北工程大学 土木工程学院，河北邯郸 056038;2.邯钢工业区建设指挥部，河北邯郸 056038）
  • 收稿日期:2012-04-04 出版日期:2012-12-20 发布日期:2012-12-25
  • 作者简介:杨柳（1987-），男，河北保定人，河北工程大学硕士在读，研究方向为岩土工程。

A New Approach of Understanding the Mechanism of Column Soil Composite System

YANG Liu1， WANG Lifang2， ZHANG Weiyuan1, HOU Huijin1   

  1. (1.College of Civil Engineering, Hebei University of Engineering, Handan Hebei 056038;
    2.Construction Management Division of Handan Steel Industrial Development District, Handan Hebei 056038 )
  • Received:2012-04-04 Online:2012-12-20 Published:2012-12-25

摘要： 通过在某施工现场的单桩静载荷试验中的载荷板下埋设土压力盒的方法，测试出试验加载过程中的桩土应力比，并结合静载荷试验中记录的沉降数据推断桩土应力比与搅拌桩复合地基的承载力以及变形之间的关系,阐述搅拌桩复合地基的工作性状。

关键词: 搅拌桩, 复合地基, 桩土应力比, 工作性状

Abstract: Soil pressure cells were installed directly under the cementmixed soil column and the surrounding soils in the plate static loading tests. The ratio of the vertical stress on the column over the stress on the adjacent soils is therefore obtained. The stress ratio change and the ultimate bearing capacity of the composite ground can be obtained throughout the loadsettlement relationship during the static plate loading tests. This approach is a new way of improving the understanding of the mechanism between the cement mixed columns and the soils.

Key words: Soil Mixing Columns, Composite Grounds, Column soil Stress ratio, Working Mechanism