| 水泥土支盘桩的抗拔机理及应用研究 |
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| 引用本文： | 姜宝良,孙豫,王荣彦.水泥土支盘桩的抗拔机理及应用研究[J].铁道勘察,2019(1):68-72. |
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| 作者姓名： | 姜宝良 孙豫 王荣彦 |
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| 作者单位： | 华北水利水电大学;河南省地质矿产勘查开发局第二地质环境调查院 |
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| 摘 要： | 为了解决地下结构的抗浮问题,分析了国内多种抗拔措施,如"一压二拉"、降水等。阐述了水泥土支盘桩的结构组成、抗拔机理,对比分析了抗拔承载力的几种计算方法,并结合郑州东区某工程应用实例进行研究,研究结果表明:与混凝土灌注桩相比,水泥土支盘桩具有造价低、承载力高、施工速度快等显著优势,相同条件下,水泥土支盘桩每m可节约造价23%,承载力提高22%,施工工期缩短30%,建议推广使用。但在应用过程中还存在一些不足之处,如对影响桩抗拔性能的因素考虑还不够全面,使得桩的抗拔承载力未能充分发挥,需要进一步对桩身结构进行改进和优化,以确定合适的支盘直径、数量、间距等。
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| 关 键 词： | 水泥土支盘桩 抗拔机理 抗拔承载力 静载试验 |
Study on the Uplift Mechanism and Application of Cement-soil Branch Pile |
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| Jiang Baoliang,Sun Yu,Wang Rongyan.Study on the Uplift Mechanism and Application of Cement-soil Branch Pile[J].Railway Investigation and Surveying,2019(1):68-72. |
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| Authors: | Jiang Baoliang Sun Yu Wang Rongyan |
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| Institution: | (North China University of Water Resources and Electric Power,Zhengzhou Henan 450000,China;The Second Geological Environment Investigation Institute of Henan Bureau of Geology and Mineral Exploration and Development,Zhengzhou Henan 450053,China) |
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| Abstract: | Jiang Baoliang;Sun Yu;Wang Rongyan(North China University of Water Resources and Electric Power,Zhengzhou Henan 450000,China;The Second Geological Environment Investigation Institute of Henan Bureau of Geology and Mineral Exploration and Development,Zhengzhou Henan 450053,China) |
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| Keywords: | Cement-soilbranch pile Uplift mechanism Upliftbearing capacity Static load test |
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