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Correspondence Analysis of Soil around Micropile Composite Structures under Horizontal Load

机译：水平荷载下微细复合结构周围土壤的对应分析

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摘要

The current approach, which is based on conformal transformation, is to map micropile holes in comparison with unit circle domain. The stress field of soil around a pile plane, as well as the plane strain solution to displacement field distribution, can be obtained by adopting complex variable functions of elastic mechanics. This paper proposes an approach based on Winkler Foundation Beam Model, with the assumption that the soil around the micropiles stemmed from a series of independent springs. The rigidity coefficient of the springs is to be obtained from the planar solution. Based on the deflection curve differential equation of Euler-Bernoulli beams, one can derive the pile deformation and internal force calculation method of micropile composite structures under horizontal load. In the end, we propose reinforcing highway landslides with micropile composite structure and conducting on-site pile pushing tests. The obtained results from the experiment were then compared with the theoretical approach. It has been indicated through validation analysis that the results obtained from the established theoretical approach display a reasonable degree of accuracy and reliability.
机译：当前基于共形变换的方法是将微堆孔与单位圆域进行映射。通过采用弹性力学的复变函数，可以得到桩平面周围土壤的应力场以及位移场分布的平面应变解。本文提出了一种基于Winkler基础梁模型的方法，并假设微桩周围的土壤源自一系列独立的弹簧。弹簧的刚度系数应从平面解中获得。基于欧拉-伯努利梁的挠度曲线微分方程，可以推导出水平荷载作用下微桩复合结构的桩变形和内力计算方法。最后，我们提出了采用微型桩复合结构加固公路滑坡并进行现场推桩试验的建议。然后将实验获得的结果与理论方法进行比较。通过验证分析表明，从已建立的理论方法获得的结果显示出合理程度的准确性和可靠性。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第18期|382427.1-382427.12|共12页
  • 作者

    Shi Hai; Bai Mingzhou; Li Chao; Zhang Yunlong; Tian Gang;

  • 作者单位

    Beijing Jiaotong Univ, Beijing 100044, Peoples R China.;

    Beijing Key Lab Track Engn, Beijing, Peoples R China.;

    Beijing Engn & Technol Res Ctr Rail Transit Line, Beijing, Peoples R China.;

    Beijing Jiaotong Univ, Beijing 100044, Peoples R China.;

    Beijing Jiaotong Univ, Beijing 100044, Peoples R China.;

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