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敞口钢管桩土塞效应试验研究 被引量:2

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摘要 本文主要开展了敞口钢管桩土塞效应试验研究,压桩土质由上而下分别为粉质黏土、淤泥质黏土、粉土、黏土、粉质黏土夹粉砂、粉砂等,地基承载力整体表现为上软下硬。研究发现:多根钢管桩土塞实测数据显示,大直径钢管桩土塞增长率IFR约为0.34,小直径钢管桩内土塞增长率IFR约为0.29,桩径越大,土塞增长率越大;对于上软下硬的土层分布,大直径钢管桩在软土层内,土塞增长率基本呈线性增长,在下层较硬土层内,土塞增长率基本保持为定值0.34。
作者 黄浩 余巍
出处 《四川建材》 2020年第5期70-71,共2页 Sichuan Building Materials
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