摘要
利用粉喷桩技术处理某五层住宅楼软弱地基后 ,在形成的粉喷桩复合地基上铺设一定厚度的砂垫层 ,之后随机抽取单根桩和桩的复合地基进行静载荷试验 ,并在载荷板下的桩中心、板边缘内外两侧及桩土中各放置压力盒 ,根据作用在桩 -土的应力测试结果 ,分析整个加荷过程中该类复合地基的桩土应力比的变化规律、垫层厚度与桩土应力比的关系及其对桩承担荷载占总荷载大小的影响。
The soft ground foundations in building were consolidated by DJM pile, then the single pile and the composite ground foundation pile were tested by in situ test and the stress ratio of the composite ground foundation pile to the soil was measured. Based on the data of the in situ test, the variations of stress ratio of pile to soil are analyzed during loading process, and the common mechanism of pile soil load transmission is discussed.
出处
《地下空间》
CSCD
2002年第3期240-243,共4页
Underground Space
基金
湖南省自然科学基金项目 (No :B10 10 3)
