摘要
基于沉降控制设计要求,从变形模式出发,分析了单一桩型复合地基桩间土受力机理,提出了相应沉降计算公式,并探讨了相关计算参数的确定方法。结果表明,考虑桩土垫层之间的相互作用计算沉降,理论依据较强,也便于分析不同地质和桩长条件下各部分沉降的比例,有利于控制沉降;地质勘察时,宜根据沉降计算的需要,提供地基土的e～p曲线和持力层的基床系数,并提供桩、土直剪摩擦试验结果。
Based on the settlement-control design and the deformation model of single kind pile composite foundation,the working mechanism of inter-pile soil was analysed,its settlement calculation formulas were presented,and the determination method of interrelated calculation parameters was also discussed.The results show that the calculation formulas considering the interaction of pile-soil-cushion have obvious theoretical character,convenience analyzing the settlement ratio of some region on the different geology and pile-length condition,and benefit controlling settlement.The engineering geological exploration document should provide the e-p curves of soil,the subgrade coefficient of bearing stratum and the results of direct shear test between the pile and the soil according to the request of settlement calculation.
出处
《矿冶工程》
CAS
CSCD
北大核心
2005年第2期10-12,16,共4页
Mining and Metallurgical Engineering
基金
湖南省教育厅科研项目(02C083)
关键词
地基基础
单一桩型复合地基
沉降
参数取值
soils and foundations
single kind pile composite foundation
settlement
parameter determination
