粗粒土静止侧压力系数影响因素试验研究

蒋明杰, 朱俊高, 梅国雄

蒋明杰, 朱俊高, 梅国雄. 粗粒土静止侧压力系数影响因素试验研究[J]. 工程力学, 2020, 37(3): 142-148. DOI: 10.6052/j.issn.1000-4750.2019.04.0199
引用本文: 蒋明杰, 朱俊高, 梅国雄. 粗粒土静止侧压力系数影响因素试验研究[J]. 工程力学, 2020, 37(3): 142-148. DOI: 10.6052/j.issn.1000-4750.2019.04.0199
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JIANG Ming-jie, ZHU Jun-gao, MEI Guo-xiong. EXPERIMENTAL STUDY ON INFLUENCE FACTORS OF LATERAL PRESSURE COEFFICIENT AT REST FOR COARSE GRAINED SOIL[J]. Engineering Mechanics, 2020, 37(3): 142-148. DOI: 10.6052/j.issn.1000-4750.2019.04.0199
Citation: JIANG Ming-jie, ZHU Jun-gao, MEI Guo-xiong. EXPERIMENTAL STUDY ON INFLUENCE FACTORS OF LATERAL PRESSURE COEFFICIENT AT REST FOR COARSE GRAINED SOIL[J]. Engineering Mechanics, 2020, 37(3): 142-148. DOI: 10.6052/j.issn.1000-4750.2019.04.0199
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粗粒土静止侧压力系数影响因素试验研究

  • 1.

    河海大学岩土力学与堤坝工程教育部重点实验室, 江苏, 南京 210098;

  • 2.

    江苏省岩土工程技术工程研究中心, 河海大学, 江苏, 南京 210098;

  • 3.

    广西大学土木建筑工程学院, 广西, 南宁 530004

基金项目: 国家重点研发计划项目（2017YFC0404804）；国家自然科学基金项目（51479052，51578164）；广西自然科学基金创新研究团队项目（2016GXNSFGA380008）
详细信息
    作者简介:

    蒋明杰(1990-),男,湖南人,助理教授,博士,主要从事土体基本特性及本构关系、土石坝工程研究(E-mail:18751957312@163.com);梅国雄(1975-),男,湖北人,教授,博士,长江学者,主要从事固结理论和土体基本性质研究(E-mail:meiguox@163.com).

    通讯作者:

    朱俊高(1964-),男,江苏人,教授,博士,主要从事土体基本性质与本构关系、土石坝工程等方面的研究(E-mail:zhujungao@hhu.edu.cn).

  • 中图分类号: TU43

EXPERIMENTAL STUDY ON INFLUENCE FACTORS OF LATERAL PRESSURE COEFFICIENT AT REST FOR COARSE GRAINED SOIL

  • 1.

    Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;

  • 2.

    Geotechnical Research Institute, Hohai University, Nanjing 210098, China;

  • 3.

    College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China

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    摘要
  • 摘要: 目前，适用于测试粗粒土K0值的试验仪器及方法较少，关于粗粒土K0影响因素的研究几乎空白。为研究分析粗粒土K0影响因素，利用新近研制的大型K0测试仪对某砂卵砾石料进行了大量K0试验。通过改变试样的相对密实度Dr0与颗粒最大粒径dM等初始条件，研究了粗粒土在不同试验条件下K0的变化规律。试验结果表明：粗粒土的Dr0与K0存在线性负相关关系；颗粒最大粒径dM与K0呈负相关关系，可近似用幂函数表示；K0随着竖向应力σ'v的增加呈减小趋势，而且较低竖向应力下这种趋势显著。
    Abstract: At present, there are few apparatuses and methods applicable for measuring K0 of coarse-grained soil, and the relevant research about the effect factors of K0 for coarse-grained soil is almost blank. To investigate the effect factors of K0 for coarse-grained soil, several K0 tests for a sandy gravel were performed by using a newly-developed large-size K0 apparatus. By changing the initial conditions such as initial relative density Dr0 and maximum grain size dM, the K0 behavior of coarse-grained soil under different experimental conditions is investigated. The test data show that:a linear negative correlation exists between K0 and Dr0 for coarse-grained soil; a negative correlation exists between K0 and dM for coarse-grained soil, and the correlation can be expressed by a power function; K0 trends to decrease with the increase of effective vertical stress σ'v, and the effect of σ'v on K0 is more pronounced under low σ'v.
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    • 参考文献(23)
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出版历程
  • 收稿日期:  2019-04-14
  • 修回日期:  2019-08-18
  • 刊出日期:  2020-05-26

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