陈福全, 刘斯航, 张智超, 等. 2020.滚石防护加筋土挡墙研究综述[J].工程地质学报, 28(3): 574-583. doi: 10.13544/j.cnki.jeg.2018-286.
    引用本文: 陈福全, 刘斯航, 张智超, 等. 2020.滚石防护加筋土挡墙研究综述[J].工程地质学报, 28(3): 574-583. doi: 10.13544/j.cnki.jeg.2018-286.
    Chen Fuquan, Liu Sihang, Zhang Zhichao, et al. 2020. State of art in research and design methods of reinforced soil embankment for rockfall protection[J]. Journal of Engineering Geology, 28(3): 574-583. doi: 10.13544/j.cnki.jeg.2018-286.
    Citation: Chen Fuquan, Liu Sihang, Zhang Zhichao, et al. 2020. State of art in research and design methods of reinforced soil embankment for rockfall protection[J]. Journal of Engineering Geology, 28(3): 574-583. doi: 10.13544/j.cnki.jeg.2018-286.

    滚石防护加筋土挡墙研究综述

    STATE OF ART IN RESEARCH AND DESIGN METHODS OF REINFORCED SOIL EMBANKMENT FOR ROCKFALL PROTECTION

    • 摘要: 滚石防护加筋土挡墙是工程上常见的落石防护工程结构, 通常用于拦截大体积或高速滚落的山坡落石。滚石防护加筋土挡墙能有效拦截具有高冲击动能的岩块滚落。但由于其结构较大, 受滚石撞击时会发生不可逆的诱发性破坏变形, 加筋土体应力-应变性状非线性, 不同加筋材料与土体界面特性及作用机制相当复杂, 目前防滚石撞击的加筋土防护挡墙的设计方法不够完善。通过总结已有文献的研究成果, 重点阐述了受滚石撞击的加筋土挡墙结构响应性状, 从落石轨迹控制和挡墙稳定性两个方面对挡墙设计方法进行了讨论。同时指出滚石旋转动能不可忽略, 已有成果在滚石冲击力计算、结构撞击响应分析方法等问题的研究仍显不足, 为今后研究提供参考。

       

      Abstract: Reinforced soil embankments are one of the common structures for rockfall protection in engineering. It is usually used in mountainous areas where giant rocks fall frequently or where rocks roll down at high speed. It can stop rockfall with high impact energy effectively. However, the design methods of the reinforced soil embankments for rockfall protection are not perfect as(1)the large and irreversible deformations induced, (2)the complex elastic-plastic stress-strain relationship of reinforced soil, and (3)the interaction between different components. This paper presents an overview of the state of art and the design methods in the field of the rockfall protection reinforced soil embankments. The impact response of protection reinforced soil embankments is elaborated. This paper discusses their design methods, from the aspects of block's trajectory control and stability of embankments. The comparisons and shortcomings of the design methods are also discussed. It points out that the rotational kinetic energy of the block can't be ignored in the study. It also shows that further investigation is needed in the aspects of maximum impact force calculation method and analysis method of impact response.

       

    /

    返回文章
    返回