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Mechanism and numerical simulation of the “soil piles” in the fresh hydraulic mud fill treated by surface-layer improvement technique
Author(s): 
Pages: 158-163
Year: Issue:  1
Journal: Port & Waterway Engineering

Abstract: 新近吹填的淤泥经浅层加固后出现凹凸不平的“土桩”现象,结合现场试验,分析了孔压监测和静力触探试验结果,同时根据大变形固结理论,对“土桩”现象进行了数值模拟,并与常规真空预压法进行了比较,试验及数值计算结果表明:“土桩”是排水板周围土体细颗粒在渗透力作用下向排水板聚集的结果,其形状呈倒锥形,横截面近似椭圆状,深度不大于1.6 m,在此深度以下,土体强度较为均匀;在同一水平面上,距离排水板越近,土体强...
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