Stability Characteristics Analysis on Sideslops of Excavation Waste Dump

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Stability Characteristics Analysis on Sideslops of Excavation Waste Dump

更新时间：2024-11-07

- Stability Characteristics Analysis on Sideslops of Excavation Waste Dump
- Issue 5, Pages: 192-195(2007)
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- Published：2007
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Stability Characteristics Analysis on Sideslops of Excavation Waste Dump[J]. 2007, (5): 192-195.
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Stability Characteristics Analysis on Sideslops of Excavation Waste Dump[J]. 2007, (5): 192-195. DOI：

摘要

针对弃渣场边坡容易发生细沟侵蚀的问题

采集弃渣场坡面不同坡位的弃渣样品

对弃渣容重、含水量、饱和导水率、饱和含水量、砂粒含量、碎石含量等物理指标进行测定;与此同时

还对各点的样品进行直剪试验

并以此对弃渣场边坡稳定性特征进行分析。结果表明:新形成弃渣场坡面由上而下

其土体内摩擦角ψ逐渐增大

而土体粘滞系数C的变化与弃渣场坡面形成过程关系密切

一般而言

坡面的上部和下部粘滞系数C较小

说明弃渣场坡面上部土体的稳定性较中下部弱;对土体其他物理性质指标与土体的内摩擦角ψ、粘滞系数C进行相关性分析

结果显示内摩擦角ψ与>0.075 mm细粒含量的相关系数为-0.427*

粘滞系数C与饱和导水率的相关系数为0.514**

表明饱和导水率和细粒物质含量对于弃渣场坡面土体稳定性具有重要影响。

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