基于规范法的加筋土挡土墙边坡加固稳定性计算研究

发布时间：2018-01-07 10:35

本文关键词：基于规范法的加筋土挡土墙边坡加固稳定性计算研究　出处：《中外公路》2017年02期 　论文类型：期刊论文

【摘要】：加筋土挡土墙是一种经济有效的滑坡滑塌治理方案,从规范验算的角度,采用极限平衡法对加筋土挡土墙处理滑坡的稳定性进行研究。研究结果表明:加筋土挡土墙可结合现场情况从加筋材料、坡脚矮墙角、边坡排水等方面设计;以某高速路段K40+370K40+470边坡为实例,基于规范进行加筋材料的稳定性计算,结果显示加筋材料满足稳定性要求;同时进行外部稳定性计算,计算结果显示整体稳定性安全系数比加筋前提高了40%以上,局部稳定性安全系数比加筋前提高了60%以上,同时危险滑面后移也加强了边坡稳定性,综合验算结果表明加筋土挡土墙能有效地治理该边坡。
[Abstract]:Reinforced earth retaining wall is an economical and effective scheme for landslide collapse control, from the angle of standard checking calculation. The stability of reinforced earth retaining wall for landslide treatment is studied by using limit equilibrium method. The results show that the reinforced earth retaining wall can be designed from the aspects of reinforced material, slope foot low angle, slope drainage and so on. Taking the K40370K40470 slope of a high speed section as an example, the stability of reinforced material is calculated based on the code. The results show that the reinforced material meets the requirements of stability. At the same time, the external stability calculation shows that the overall stability safety factor is 40% higher than that before reinforcement, and the local stability safety factor is 60% higher than that before reinforcement. At the same time, the slope stability is strengthened by the dangerous sliding surface backward movement. The comprehensive checking results show that the reinforced earth retaining wall can effectively treat the slope.
【作者单位】：广东省长大公路工程有限公司;
【分类号】：U417.11
【正文快照】： 1边坡概况某高速公路高边坡K40+370K40+470段路堑位于山坡中下部,山坡较为平缓,自然坡度18°25°,山顶高程约90m,地形稍有一定的起伏,根据勘察资料,从地面往下揭露地层主要包含4个部分:地表大量碎石以及亚黏土,揭露厚度0.503.80 m;砂岩和泥岩,风化作用导致该层碎块分布广泛,结

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