论文部分内容阅读
为探求影响生产建设项目建设过程中堆渣体边坡稳定性的因素,以紫色丘陵区堆渣体为研究对象,采集堆渣体不同坡位的弃渣样品,测定堆渣体的含水率、饱和含水率、饱和导水率、容重和机械组成等物理指标,同时对各个坡位的样品进行直剪试验,以此分析堆渣体边坡稳定性特征。结果表明:坡面土体的含水率从上至下均逐渐升高;在含水率极低时,土体的黏聚力与含水率呈正相关;形成时间较长的堆渣体坡中部位的内摩擦角最大,而黏聚力最小;1、2、3号堆渣体安全堆渣的临界坡度分别为29.21°、26.13°、32.45°,3个边坡均不稳定,需要采取拦挡措施。
In order to explore the factors that affect the stability of slag body slope in the process of production and construction project, taking the slag body in the purple hilly region as the research object, the slag samples from different slope positions of the slag body were collected to measure the moisture content, Saturated moisture content, saturated hydraulic conductivity, bulk density and mechanical composition of physical indicators, while the slope position of the samples for direct shear test to analyze the stability characteristics of slag heap slope. The results show that: the water content of the slope soil gradually increases from top to bottom; when the moisture content is extremely low, the cohesion of the soil is positively correlated with the water content; The internal friction angle is the maximum, and the cohesion is the minimum; the critical slopes of the safe heap slag of No.1, No.3 and No.3 slag bodies are 29.21 °, 26.13 ° and 32.45 °, respectively. All three slopes are unstable and need to take the blocking measures.