DDC桩法桩周土挤密影响范围的试验研究

Geotechnical Investigation & Surveying(2016)

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Abstract
依托山西某电厂项目地基处理工程实例,进行了灰土挤密桩桩周土挤密效果的试验,根据实测桩周土体径向位移、土压力、干密度、单桩复合地基承载力静载荷等试验数据,分析表明:DDC桩法桩周土体(距桩中心)有效挤密范围约为0.7D(D为成桩直径),挤密影响范围约为1.5D,处理后单桩复合地基承载力有较大幅度提升,能够满足设计要求.
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