滚球体育

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玻璃纤维土工格栅

土工格栅加筋碎石垫层作用及计算单元选取方法

作者:hengke 来源:肥城联谊工程塑料有限公司时间:2019-05-03 11:30:35 访问量:11
描述:研究了土工格栅对碎石垫层刚度的影响,并采用FLAC3D对模型试验进行了数值模拟,分析了碎石垫层和加筋碎石垫层的竖向应力场、竖向位移场随荷载增加的变化规律。研究表明:在相同荷载作用下,加筋碎石垫层的沉降明显小于碎石垫层的沉降;加筋碎石垫层的竖向应力增量及其影响范围、沉降影响范围及沉降量均比碎石垫层的小,并且加筋碎石垫层的应力核心区和零位移区的范围也有所减小。
土工格栅

QIANXITUGONGGEZHAJIAJINSUISHIDIANCENGZHONGDEYANJIU

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土工格栅计算单元选取滚球体育:格栅单元在实际工作中只能承受拉应力,不具有抗压性能和抗弯刚度。许多研究表明:土工格栅可看成是只有轴向变形的一维单元,在一定荷载作用下的应力-应变关系还处在线弹性范围内。根据已有研究基础与成果,土工格栅单元被视为薄膜单元,故其本构关系选取线弹性计算模型。   

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