刚性桩在高路堤软土路基适用性研究

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英文篇名：Study on applicability of rigid pile in high embankment soft soil roadbed 作者：李淑敏 ; 秦龙 英文作者：LI Shu-min;QIN Long;Sanya University;Guizhou Transportation Planning Survey & Design Academe Co.,Ltd.; 关键词：刚性桩 ; 高路堤软土路基 ; 抗剪强度 ; 地基承载力 ; 变形量 英文关键词：rigid pile;;high embankment soft soil roadbed;;shear strength;;bearing capacity of foun-dation;;deformation 中文刊名：JTKE 机构：三亚学院;贵州省交通规划勘察设计研究院股份有限公司; 出版日期：2018-04-25 出版单位：山东交通科技 年：2018 期：No.165 基金：海南省高等学校科学研究资助项目,项目编号:Hnky2017-58 语种：中文; 页：JTKE201802002 页数：5 CN：02 ISSN：37-1276/U 分类号：8-11+22

摘要

以水泥粉煤灰碎石桩复合地基理论为基础,深入分析素混凝土桩处理后软土路基的抗剪强度、地基承载力和变形情况,得出C20素混凝土桩处理后的复合地基抗剪强度、地基承载力和变形可满足高路堤对地基要求。并结合工程实例,将C20素混凝土桩用于高路堤软土路基处理中,对处理后地基的抗剪强度、地基承载力和变形量进行计算分析,确定合理桩径、桩间距、持力层,满足工程需求,最终达到工程安全,节约工程造价的目的。
        Based on the theory of cement-flyash-gravel composite foundation, this paper deeply analyzes the shear strength,bearing capacity and deformation of soft-soil subgrade after the treatment of plain concrete piles.As a result,the shear strength of composite foundation treated with C20 plain concrete, foundation bearing capacity and deformation can meet the requirements of high embankment on the foundation. Combined with engineering example, this paper will calculate and analyze the C20 plain concrete piles are used in soft embankment treatment of high embankment,the shear strength,foundation bearing capacity and deformation of the treated foundation. The reasonable pile diameter,pile spacing and bearing stratum are determined to meet the engineering needs,and finally to achieve the project safety,save project cost.

引文

[1]龚晓南.地基处理手册(第三版)[M].北京:中国建筑工业出版社,2008.
    [2]JGJ 79-2012,建筑地基处理技术规范[S].
    [3]JTG D30-2015,公路路基设计规范[S].
    [4]GB 50007-2011,建筑地基基础设计规范[S].