| 加筋路堤下桩式复合地基的桩土应力比计算 |
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| 引用本文： | 郑俊杰,王熹,陈保国.加筋路堤下桩式复合地基的桩土应力比计算[J].华中科技大学学报(城市科学版),2007,24(2):5-8. |
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| 作者姓名： | 郑俊杰 王熹 陈保国 |
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| 作者单位： | 华中科技大学,土木工程与力学学院,湖北,武汉,430074;华中科技大学,控制结构湖北省重点实验室,湖北,武汉,430074 |
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| 摘 要： | 近年来工程中修建了越来越多的桩承式加筋路堤。选取单桩影响范围的复合土体为研究对象,假定桩间土上部水平加筋材料受上覆土压力作用后变形为二次抛物面,考虑水平加筋材料对桩顶的作用力,通过建立整体平衡方程,推导出了加筋路堤下桩式复合地基的桩土应力比的解析表达式。通过算例进行验证,表明该计算方法是合理可靠的,最后分析了各参数对桩土应力比的影响,得到了一些变化规律。
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| 关 键 词： | 桩承式加筋路堤 桩土应力比 土工合成材料 |
| 文章编号： | 1672-7037（2007）02-0005-04 |
| 修稿时间： | 2006-11-20 |
Pile-soil Stress Ratio of Piled Composite Ground Under Geosynthetics-reinforced Embankment |
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| ZHENG Jun-jie,WANG Xi,CHEN Bao-guo.Pile-soil Stress Ratio of Piled Composite Ground Under Geosynthetics-reinforced Embankment[J].Journal of Huazhong University of Science and Technology,2007,24(2):5-8. |
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| Authors: | ZHENG Jun-jie WANG Xi CHEN Bao-guo |
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| Abstract: | More and more geosynthetics-reinforced and pile-supported embankments are being constructed.The composite soil mass within the influence scope of single pile was taken as a simple model,and the assumption that the geosynthetics above the soil between piles deforms as a paraboloid after the loading of the overlying soil was made.After taking into account the action of the geosynthetics to the pile top,by establishing the global equilibrium equation,the analytic solution of the pile-soil stress ratio of piled composite foundation was obtained.The example verified that the solution presented in this paper is reasonable and reliable.Finally,the influence of each parameter on the pile-soil stress ratio was analyzed and some variation laws were obtained. |
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| Keywords: | geosynthetics-reinforced and pile-supported embankment pile-soil stress ratio geosynthetics |
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