分析了半刚性桩复合地基的桩土受力特点，通过数值计算方法，得到半刚性桩复合地基的沉降随桩长、置换率、桩身强度等因素变化的关系。
With the changing of piles length, displacement ratio and piles strength, we concluded the settlement rules of semi -rigid-pile composite foundation by numerical calculation method.
结果表明桩身轴向应力随深度增加呈递减趋势； 粉喷桩复合地基的有效桩长受桩土模量比与置换率的影响。
The result shows that axial stress of Pile takes on degression along with deepness and the effective length of Pile is influenced by replacement-ratio.
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