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加筋土强度的理论研究及试验验证

DOI: 10.6052/1000-0879-12-169, PP. 42-45

Keywords: 加筋土,附加围压,强度指标变化

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Abstract:

将加筋材料对土体强度提高的贡献等效成一种附加围压,通过莫尔圆法,求得小主应力增量,并认为土体在破坏时处于极限平衡状态,得到了黏聚力和内摩擦角同时变化时的加筋土强度表达式,对该式作了详细讨论,用该式计算了6例典型加筋土在轴对称荷载下的大主应力,结果表明计算所得大主应力值与三轴试验值比较吻合.

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