摘要
根据水泥土桩桩土接触面载荷传递模型试验、水泥土桩与灌注桩承载力的现场足尺对比试验和有限元分析 ,对水泥土桩载荷传递机理和破坏机理进行了分析 ,对水泥土桩复合地基载荷试验承压板桩土相互作用进行了研究 ,进一步分析了复合地基载荷试验方法对单桩进行检验的局限性 ,辨证分析了褥垫层对水泥土桩复合地基承载力确定的影响 ,不能简单地认为垫层对提高复合地基承载力和减少沉降是有利的 .
Through the model test, bearing capacity test in-situ of soil-cement mixing pile and cast-in-place pile and finite-element method, the load transfer and failure mechanism of the soil-cement mixing pile is studied. The loading plate-pile-soil interaction of the loading plate test of soil-cement mixing pile composite is also studied. The effect of the cushion on the bearing capacity of soil-cement mixing pile composite is analyzed and the results show that the cushion can not be simply regarded as favorable to enhance the bearing capacity and reduce the settlement of soil-cement mixing pile composite. Finally, the method to evaluate the bearing capacity of soil-cement mixing pile and its mode of failure is suggested.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第5期62-66,共5页
Journal of Southeast University：Natural Science Edition
关键词
水泥土桩
复合地基
承载力
载荷试验
褥垫
传递机理
soil-cement mixing pile
composite foundation
bearing capacity
bearing capacity test
cushion
