| 公路加筋路基的变形和承载力分析 |
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| 引用本文： | 宋广,边学成,蒋建群,陈云敏.公路加筋路基的变形和承载力分析[J].上海交通大学学报,2011,45(5):653-658. |
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| 作者姓名： | 宋广 边学成 蒋建群 陈云敏 |
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| 作者单位： | (浙江大学 软弱土与环境土工教育部重点实验室， 岩土工程研究所, 杭州 310058) |
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| 基金项目： | 国家自然科学基金项目(10702063); 浙江省自然科学基金项目(Y1080317); 铁道部科技发展计划重点项目(2008G005-D) |
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| 摘 要： | 基于双参数地基模型和土与加筋体之间的库仑摩擦假设，提出了相应的简化分析模型，考察了公路加筋路基的受力变形特性和相关参数对加筋路基施工效果的影响.结果表明：在路基沉降变形控制要求相同的情况下，铺设土工合成材料，可使颗粒填料层厚度降低50%左右，筋材应变最大值出现于距对称中心1.5~2.0倍的加载范围内；在路基填料层厚度保持不变时，铺设土工合成材料，可使路基承载力提高33%；在不考虑筋材的抗弯刚度时，加筋处理可使路基承载力提高约15%.
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| 关 键 词： | 土工加筋路基 变形特性 填料厚度 承载力 |
| 收稿时间： | 2010-11-22 |
Deformation Behaviors and Bearing Capacity of Geosynthetics-Reinforced Pavement |
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| SONG Guang,BIAN Xue-cheng,JIANG Jian-qun,CHEN Yun-min.Deformation Behaviors and Bearing Capacity of Geosynthetics-Reinforced Pavement[J].Journal of Shanghai Jiaotong University,2011,45(5):653-658. |
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| Authors: | SONG Guang BIAN Xue-cheng JIANG Jian-qun CHEN Yun-min |
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| Institution: | (MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China) |
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| Abstract: | A simplified analysis model considering two-parameter ground model and the Coulomb friction assumption was proposed to investigate reinforced pavement's deformation behaviours and bearing capacity.The computation results show that geosynthetics constructed in pavement can reduce about 50% depth of granular filling layer for same pavement deformation.The peak value of tensile strain in geosynthetics appears in 1.5-2.0 times of load range.The bearing capacity of reinforced pavement increases by 15% compared t... |
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| Keywords: | geosynthetics-reinforced pavement deformation behavior granular fill depth bearing capacity |
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