摘要
为了研究露天采场最终边坡的稳定性和潜在危险性,采用模糊数学综合评判方法和GIS空间矩阵差值运算法,对本钢南芬露天铁矿采场高陡边坡进行了危险性区划的研究。根据南芬露天铁矿采场边坡植被发育、岩性特征、岩体完整性、节理频度、地质构造、矿山开采影响指数、稳定性空间差值综合系数等综合信息,定量评价并绘制出系统的南芬露天矿采场边坡危险性分区图,按照极危险、危险、次稳定和稳定级别,共划分为4大区,细化为35个亚区,并提出了相应的灾害防治对策,为露天矿未来5～10年开采计划和防治决策的制定奠定了科学基础。
In order to study the stability and potential risk of the final pit slope, a fuzzy comprehensive evaluation method and matrix calculus of GIS-based spatial analysis were used in the hazard zonation for the steep slope of Nanfen open pit mine. Then, the hazard zonation map was constructed based on the quantitative evaluation in terms of comprehensive factors, such as vegetation development, lithologic characters, rock mass integrality, frequency of joints, geologic structure of slope, affecting factors to the mining operation, spatial difference in stability. According to the degree of hazards, slope was divided into extreme danger zone, danger zone, secondary danger zone and stable zone, which could further divided into 35 subzones. In the end, some corresponding hazard prevention and control measures were proposed, which can provide scientific reference for preparing the mining plan and prevention policy in the next 5-10 years.
出处
《矿冶工程》
CAS
CSCD
北大核心
2016年第1期20-25,共6页
Mining and Metallurgical Engineering
基金
国家自然科学基金资助(51304210)
北京市自然科学基金资助(8142032)
