| 土工格室低路堤-刚性路面结构体系模型试验 |
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| 引用本文： | 赵明华,陈炳初,黄立葵.土工格室低路堤-刚性路面结构体系模型试验[J].中国公路学报,2011(4). |
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| 作者姓名： | 赵明华 陈炳初 黄立葵 |
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| 作者单位： | 湖南大学土木工程学院; |
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| 基金项目： | 国家自然科学基金项目(51078138) |
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| 摘 要： | 提出将土工格室与填入其内的碎石填料组成的加筋基层置于路堤顶部,以构成一种新型的土工格室低路堤-刚性路面结构体系,并通过2组室内模型试验对该体系的受力变形特点进行研究。采用便携式路面弯沉仪测定了试验路堤中土工格室基层加入前后动态回弹模量的变化,并通过自行设计的一套可实现往复车载的小型模型车的驱动装置模拟作用于路面上的实际车辆荷载。试验结果表明:土工格室基层的加入可显著提高碎石基层的动态回弹模量值,减少直接承受车辆荷载车道的整体平均沉降;并能带动相邻板块下的土体协同工作,提高车辆荷载的扩散均化能力,减少相邻车道间的差异沉降。
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| 关 键 词： | 道路工程 土工格室 模型试验 往复车载 |
Model Test of Geocell Reinforced Low Embankment and Rigid Pavement System |
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| ZHAO Ming-hua,CHEN Bing-chu,HUANG Li-kui.Model Test of Geocell Reinforced Low Embankment and Rigid Pavement System[J].China Journal of Highway and Transport,2011(4). |
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| Authors: | ZHAO Ming-hua CHEN Bing-chu HUANG Li-kui |
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| Institution: | ZHAO Ming-hua,CHEN Bing-chu,HUANG Li-kui(School of Civil Engineering,Hunan University,Changsha 410082,Hunan,China) |
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| Abstract: | A new geocell reinforced low embankment and rigid pavement system(GRLERPS) was proposed.In the system,reinforced layer composed of geocell and its internal gravel filling was put on top of embankment.The forcing and deformation characteristics of the new GRLERPS were studied by two groups of tests.Variation of dynamic resilient modulus before and after imbedding geocell base in test embankment was measured by portable pavement deflector.A drive of small scale model car which can realize reciprocating vehicl... |
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| Keywords: | road engineering geocell model test reciprocating vehicle load |
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