| 柔性基础下复合地基试验研究综述 |
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| 引用本文： | 吕文志,俞建霖,龚晓南.柔性基础下复合地基试验研究综述[J].公路交通科技,2010,27(1). |
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| 作者姓名： | 吕文志 俞建霖 龚晓南 |
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| 作者单位： | 1. 浙江大学,软弱土与环境土工教育部重点实验室,浙江,杭州,310058;长江科学院,水利部岩土力学与工程重点实验室,湖北,武汉,430010
2. 浙江大学,软弱土与环境土工教育部重点实验室,浙江,杭州,310058 |
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| 基金项目： | 国家自然科学基金资助项目(50708093);;东南大学混凝土及预应力混凝土结构教育部重点实验室资助项目(200608) |
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| 摘 要： | 对近10年来缩尺试验和足尺试验研究成果的总结和分析,结果表明:柔性基础下复合地基工作性状是柔性基础、垫层、复合地基及下卧层四者之间相互作用与应力应变耦合的结果;除桩土应力比外,桩土沉降差、土拱效应、中性点位置、土工格栅作用等也应得到重视;正交设计或均匀设计尚未广泛应用于试验;有必要将解析解、室内试验与原位测试、缩尺试验、数值模拟和足尺试验结合起来开展研究。
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| 关 键 词： | 道路工程 柔性基础 复合地基 试验研究综述 共同作用 |
Review of Experimental Studies on Composite Ground under Flexible Foundation |
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| LV Wenzhi,YU Jianlin,GONG Xiaonan.Review of Experimental Studies on Composite Ground under Flexible Foundation[J].Journal of Highway and Transportation Research and Development,2010,27(1). |
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| Authors: | LV Wenzhi YU Jianlin GONG Xiaonan |
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| Institution: | 1.Key Laboratory of Soft Soils and Geoenvironmental Engineering;MOE;Zhejiang University;Hangzhou Zhejiang 310058;China;2.Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources Yangtze Riuer Scientific Research Institute;Wuhan Hubei 430010;China |
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| Abstract: | Based on summary and analysis of studies on reduced scale and full-scale experiments in recent ten years,it is concluded that(1) the behavior of the composite ground under the flexible foundation is the result of the interactions and stress-strain coupling among the flexible foundation,the cushion,the composite ground and the underlying stratum;(2) in addition to pile-soil stress ratio,the differential settlement between pile and soil,the soil arching effect,the position of the neutral point and the effect ... |
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| Keywords: | road engineering flexible foundation composite ground review of experimental study interaction |
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