桩基施工对向阳闸防渗墙应力 变形影响研究
水利水电技术(2014)
Abstract
根据三维弹塑性应力应变仿真数值计算分析各种施工工况条件下防渗墙应力应变变化等特征,分析评价桥梁桩基施工对向阳闸防渗墙稳定的影响。结果表明:防渗墙的上下游两侧同步进行施工,由河床中心向两岸逐步施工对防渗墙影响较小,水平变形仅为3 mm,最大沉降为8 mm,防渗墙上下差异沉降仅为0.2 mm,对防渗墙安全影响较小。
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Key words
pile foundation,cutoff wall,numerical analysis,stress-strain,Xiangyang Sluice
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