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中文摘要：
采用数值模拟对复合地基附加应力的扩散模式进行了研究,对规范及相关文献给出的地基沉降计算方法进行了讨论,分析了承载板刚度、载荷大小、桩体刚度对应力扩散模式及扩散角的影响,在规范给出的地基沉降计算方法的基础上,考虑复合地基附加应力的实际扩散模式,提出了一种新的复合地基沉降计算模式,并给出了应力扩散角的取值建议.通过与实测数据的对比,证明该方法比其他方法计算结果更加准确.
英文摘要：
Dispersion of additional stress on the composite foundation was researched by numerical simulation. The calculation methods of foundation settlement recommended by the technical code and literatures were discussed; the stress dispersion patterns and the dispersion angle were investigated by changing the plate stiffness, load size, as well as, pile stiffness. Based on the foundation settlement calculation method recommended by Chinese code for design of building foundation, a new model of composite foundation settlement and the dispersion angle were obtained by considering the actual diffusion model. Through comparison the calculation results with the measured data, it is proved that the new method is more accurate than others.
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