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。
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.
出处
《土工基础》
2012年第6期62-64,共3页
Soil Engineering and Foundation
关键词
搅拌桩
复合地基
桩土应力比
工作性状
Soil Mixing Columns
Composite Grounds
Column-soil Stress ratio
Working Mechanism
