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刚性桩复合地基沉降计算方法的研究及应用 被引量:14

SETTLEMENT CALCULATION METHOD AND ITS APPLICATION OF RIGID PILE COMPOSITE FOUNDATION
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摘要 在刚性桩复合地基设计中,刚性桩布桩间距等于3~5倍桩径,桩长和桩径根据复合地基承载力和沉降设计目标值确定。就刚性桩复合地基承载力和沉降计算水平比较而言,刚性桩复合地基沉降计算水平尤为重要,且按变形控制设计比按承载力控制设计更合理。通过对现有刚性桩复合地基理论和考虑承台效应的复合桩基理论进行分析探讨,利用刚性桩现场单桩荷载试验和多桩复合地基大型荷载试验成果,对现有计算刚性桩复合地基沉降的方法进行改进,得出初步结论。 In the design of composite foundation, rigid pile spacing is equal 3- times the pile diameter, pile length and pile diameter based on the design of composite foundation bearing capacity and settlement target identified, comparing the composite foundation bearing capacity and settlement calculation level, the rigid pile composite foundation settlement level is particularly important, and deformation control design is more reasonable. In this paper,based on the existing theory and the theory considering the pile cap effect of composite foundation, used the rigid pile load test results and multi-pile composite foundation large load test results, to improve existing settlement calculation method of rigid pile composite foundation, reached a preliminary conclusion for design reference.
作者 党昱敬
出处 《建筑技术》 2012年第3期243-247,共5页 Architecture Technology
关键词 刚性桩复合地基 复合桩基 单桩荷载试验 多桩复合地基大型荷载试验 rigid pile composite foundation composite pile single pile load test large load test of mutipile composite foundation
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