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基坑开挖对桩锚支护体系土体侧压力的影响

Building Technique Development(2022)

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Abstract
桩锚支护体系因施工方便、对施工空间要求小、控制变形能力强等特点而被广泛采用.土压力的准确计算是基坑设计的关键.为了研究桩锚支护体系中,基坑开挖对土体侧压力的影响,在具体基坑工程现场,利用钻孔法在土体中埋设土压力盒,基坑开挖过程中实时监测.以现场监测数据为依据,总结出不同深度土压力的变化.结果表明:随基坑开挖,桩侧土压力总体呈减小的趋势;同一水平位置上,桩侧土压力随深度的增加而增大;随基坑开挖,风化岩处桩侧土压力趋于平缓.
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