四川省红山铁矿废石堆积体稳定性分析评价及防治对策建议

Stability Analysis and Evaluation of Waste Rock Accumulationin Hongshan Iron Mine of Sichuan Province

详细介绍废石堆积体基本特征,采用工程类比、反演分析等方法综合确定计算参数,对废石堆在不同工况下的稳定性及发展趋势进行分析评价,认为废石堆在自然工况下处于基本稳定—欠稳定状态,在降雨和地震工况下处于欠稳定状态,预测其变形破坏主要为前缘边坡局部滑塌,进而引发上部坡体失稳滑动。在此基础上,提出设置截排水沟、挡土墙进行工程治理,覆土绿化,加强行政管理的综合防治对策建议,以期为建设绿色矿山及类似矿山环境地质问题防治提供参考借鉴。

The basic characteristics of waste rock accumulation body are introduced in detail.The calculation parameters are determined by engineering analogy,inversion analysis and other methods.The stability and development trend of waste rock pile under different working conditions are analyzed and evaluated.It is considered that the waste rock pile is basically stable or under stable state under natural conditions.In the case of rainfall and earthquake,it is in the state of under stability.It is predicted that the deformation and failure of the slope are mainly the local collapse of the front slope,which leads to the instability and sliding of the upper slope.On this basis,the paper puts forward the comprehensive prevention and control countermeasures and suggestions of setting up intercepting and drainage ditch and retaining wall for engineering treatment,covering soil greening and strengthening administrative management,so as to provide reference for the construction of green mines and the prevention and control of environmental geological problems in similar mines.