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摘要:
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阐述了土工布的加筋作用机理,并结合某高速公路实测资料,提出了侧向位移-沉降曲线分析法,引进了荷载扩散系数概念,分析了土工布在提高地基承载能力、约束侧向位移和侧向挤出量、减小沉降和提高抗滑稳定性等方面的作用。
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The paper expounds on the mechanism of geotechnical fabrics and an analytical method of lateral displacement-settlement curves is proposed in the light of the measured data of an express highway,which has incorporated the concept of efficiency factor of load transmission.By using the analytical method,the effect of geotechnical fabrics in improving the bearing capacity of foundation,restricting lateral displacement and "squeeze-out"of soil,minimizing settlement of soil and enhancing the stability of soil against sliding has been analyzed.
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基金项目:
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广东省交通厅资助科技项目(2002-05)
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作者简介:
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参考文献:
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[1]崔伯华.高速公路软基采用土工合成材料加固处理效果分析[J].西安公路交通大学学报,2001,21(3):13-16.
[2]李洪年.土工格栅在软弱路基处理中的应用[J].地下空间,2001,21(5):536-539.
[3]石名磊,邓学钧,刘松玉.土工合成材料在加筋土技术中的应用[J].重庆交通学院学报,2002,21(2):61-66.
[4]王伟.有纺土工织物加筋软土地基的模型试验和机理研究[J].岩土工程学报,2000,22(6):750-753.
[5]王桂尧,张起森.土工聚合物减小土体差异沉降的机理及最佳埋置深度的计算[J].力学与实践,1998,20(4):14-17.
[6]刘吉福.关于“加筋垫层对地基沉降控制效果的多方案比较”的讨论[J].岩土工程学报,2002,24(2):263-263.
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