摘要

为分析制样含水量对重塑软黏土的力学特性影响,用单向固结仪和三轴仪分别对不同泥浆含水量固结而成的重塑样开展了单向压缩试验和固结不排水剪切三轴试验。试验结果表明,重塑样的初始孔隙比随制样含水量的增大而增大,从而引起压缩曲线的上移以及压缩指数的增大,土体的抗剪强度减小,孔隙水压力增大;但初始含水量对土体的有效应力比和临界状态影响不大;制样含水量对重塑样力学特性的影响的界限含水量约为2.0倍液限含水量。最后,用孔隙指数对试验结果归一化,得到不同初始孔隙比重塑样的压缩曲线和剪切强度可基本归一化为土的固有压缩曲线和固有强度曲线。

  • 单位
    建筑工程学院; 衢州学院
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