叶子航, 唐煜森, 罗鑫. 2018: 岩土设计竞赛中标准砂与白卡纸摩擦性能研究. 工程地质学报, 26(s1): 594-600. DOI: 10.13544/j.cnki.jeg.2018146
    引用本文: 叶子航, 唐煜森, 罗鑫. 2018: 岩土设计竞赛中标准砂与白卡纸摩擦性能研究. 工程地质学报, 26(s1): 594-600. DOI: 10.13544/j.cnki.jeg.2018146
    YE Zihang, TANG Yusen, LUO Xin. 2018: STUDY ON THE STANDARD SAND AND WHITE CARDBOARD'S FRICTION PERFORMANCE USED IN GEOTECHNICAL DESIGN COMPETITIONS. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 594-600. DOI: 10.13544/j.cnki.jeg.2018146
    Citation: YE Zihang, TANG Yusen, LUO Xin. 2018: STUDY ON THE STANDARD SAND AND WHITE CARDBOARD'S FRICTION PERFORMANCE USED IN GEOTECHNICAL DESIGN COMPETITIONS. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 594-600. DOI: 10.13544/j.cnki.jeg.2018146

    岩土设计竞赛中标准砂与白卡纸摩擦性能研究

    STUDY ON THE STANDARD SAND AND WHITE CARDBOARD'S FRICTION PERFORMANCE USED IN GEOTECHNICAL DESIGN COMPETITIONS

    • 摘要: 本文主要介绍了巴西白卡纸(以下简称白卡纸)、标准砂的性质与物理力学参数,并在研究两者摩擦性能方面,制作了标准砂-白卡纸摩擦力模型。该模型以条带状白卡纸模拟加筋体,标准砂模拟岩土体。通过白卡纸嵌入标准砂模拟加筋体插入岩土体,试图找到标准砂密实度及白卡纸尺寸、形状等因素对标准砂-白卡纸摩擦力的影响规律。实验采用控制变量法,依次改变各影响因素,并记录不同条件下标准砂-白卡纸摩擦力的大小,绘制出相应的变化关系图,从而得出结论:标准砂-白卡纸摩擦力随标准砂密实度的增大而增大到一定程度后,逐渐趋于平稳、随嵌入纸条宽度的增大而增大、随纸条嵌入深度的增大而增大、随纸条中菱形个数的增加而增大,个数超过2个增幅不明显、随纸条中菱形间距的增大而减小,最后趋于平稳、随菱形横对角线占纸条宽比的增大而减弱,中间一段趋于平稳。

       

      Abstract: This paper mainly introduces natures of the Brazil White cardboard(abbr:White cardboard) and the Standard sand, including their physical and mechanical parameters. A model named the friction of Standard sand-White cardboard was made in regard to the friction performance of the White cardboard and the Standard sand. In the model, the stripped White cardboard simulated the reinforced body, and the Standard sand simulated the rock-soil body. We attempted to find out how the Standard sand's compactness and White cardboard's size or shape and other influence factors might change the friction of Standard sand-White cardboard. In the experiment, we adopted the Variable-controlling approach by Changing in turn the influence factors. Then we recorded values of the friction of Standard sand-White cardboard on different conditions, and drew corresponding line charts. Finally we got the conclusion:the friction of Standard sand-White cardboard grows with the Standard sand's compactness to a certain extent. It grows with the White cardboard's width and the White cardboard's length embedded in the Standard sand. It grows with the numbers of diamonds in the White cardboard, it but does not grows clearly when the number exceeds two. It decreases with the space between diamonds to a certain extent. It decreases with the crosswise diagonal line's width of the diamond, but in the middle it is independent of the width.

       

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