›› 2014, Vol. 28 ›› Issue (2): 26-29.

• 工程实录 • 上一篇    下一篇

重力式挡土墙卸荷平台的合理位置

孟耀东1 ,王晨曦2   

  1. (1.中建七局安装工程有限公司,郑州 450045;2.华南理工大学 土木与交通学院,广州 510641)
  • 收稿日期:2013-04-22 出版日期:2014-04-21 发布日期:2014-04-25
  • 作者简介:孟耀东(1987-),男,河南大学土木工程系毕业,本科,助理工程师,研究方向为岩土工程。

Optimization of the Unloading Platform for Gravity Retaining Walls

MENG Yaodong1,WANG Chenxi2   

  1. (1.Construction Installation Engineering Co., China Construction Seventh Engineering Division Co., Ltd., Zhengzhou 450045;
    2.School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641)
  • Received:2013-04-22 Online:2014-04-21 Published:2014-04-25

摘要: 为有效减小主动土压力,常在挡土墙后设置卸荷平台(减压平台)。采用新的土压力计算理论,以倾覆力矩最小为控制目标,对卸荷平台的位置进行推导。通过算例分析,对比在无卸荷平台及不同位置的卸荷平台挡土墙抗倾覆稳定安全系数的大小,求得卸荷平台合理位置的范围,旨在为挡土墙的设计施工提供一种新的借鉴方法。

关键词: 挡土墙, 卸荷平台, 合理位置, 安全系数

Abstract: The unloading (load reduction) platforms are usually placed behind the gravity walls in order to reduce the active earth pressures. Using a new earth pressure theory, the location of the unloading platform that resulting in the minimum overturning bending moment is optimized in the paper. The factors of safety for gravity walls with and without unloading platform are compared throughout the examples. The range of the location of the unloading platform behind the gravity walls are recommended in the paper.

Key words: Retaining Walls, Unloading Platforms, Position;Factor of Safety