Mechanical Behavior and Application of a Novel Supporting and Retaining Structure for Slope

Authors

  • Yu Xiao ORCID
    Affiliation

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

    National Joint Engineering Research Center of Geohazards Prevention in The Reservoir Areas (Chongqing), Chongqing 400045, China

  • Dongshuang Liu
    Affiliation

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

    National Joint Engineering Research Center of Geohazards Prevention in The Reservoir Areas (Chongqing), Chongqing 400045, China

  • Xinrong Liu
    Affiliation

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

    National Joint Engineering Research Center of Geohazards Prevention in The Reservoir Areas (Chongqing), Chongqing 400045, China

  • Yingkun Xie
    Affiliation

    Chongqing Chuandongnan Survey & Design Institute Co., Ltd, Chongqing 400038, China

    Chongqing GaoXin Engineering Survey and Design Institute Ltd,.Co. Chongqing 401121, China

  • Yafeng Han
    Affiliation

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

    National Joint Engineering Research Center of Geohazards Prevention in The Reservoir Areas (Chongqing), Chongqing 400045, China

    School of River & Ocean Engineering Chongqing Jiaotong University, Chongqing 400074, China

  • Fei Xiong
    Affiliation

    School of Civil Engineering, Chongqing University, Chongqing 400045, China

    National Joint Engineering Research Center of Geohazards Prevention in The Reservoir Areas (Chongqing), Chongqing 400045, China

https://doi.org/10.3311/PPci.19245

Abstract

This paper proposed a novel supporting and retaining structure used to high-steep building slope reinforcement. It combined with an anti-sliding pile and an inclined supporting column, which is used as a fulcrum on the upper part of pile. The mechanical characteristics of the novel supporting and retaining structure are studied firstly by two mechanical methods and two numerical methods, respectively. Result shows that the axial force will be evenly distributed along the column body and it provide a quite resistant force, meanwhile. There are two shear force concentrated areas of the anti-sliding pile, one is from the top of the embedded area of the pile body to the potential slip plane, the other is at the joint. Subsequently, the results of these methods are compared synthetically and the differences between the results are also discussed. It shows that a large shear force and moment will be caused at the restrained end of the pile body by the force method and 2D numerical model 1. And in Wenkler model and the 2D numerical model 2, the rock is considered non-rigid, the anti-sliding pile will produce a certain amount of deflection under the sliding thrust, which reduces the shear force and moment at the top of the embedded area of the pile body. Finally, the novel supporting and retaining structure is applied to the site, and the monitoring data shows that the novel supporting and retaining structure is economic and effective for the reinforcement of the high-steep building slope.

Keywords:

high-steep building slope, novel supporting and retaining structure, mechanical characteristics, design internal force

Published Online

2022-03-30

How to Cite

Xiao, Y., Liu, D., Liu, X., Xie, Y., Han, Y., Xiong, F. “Mechanical Behavior and Application of a Novel Supporting and Retaining Structure for Slope”, Periodica Polytechnica Civil Engineering, 66(2), pp. 564–580, 2022. https://doi.org/10.3311/PPci.19245

Issue

Section

Research Article