青海省夏日哈木铜镍矿床露天采场边坡稳定性评价  

Stability evaluation of open-pit slope of Xiarihamu Copper-nickelDeposit in Qinghai Province

作　　者：王仔章 郭红标 吴清星 Wang Zizhang;Guo Hongbiao;Wu Qingxing(Henan Central Nuclear Research and Design Co.,Ltd.,Zhengzhou 450052,China;Henan Yuanbedrock Soil Engineering Co.,Ltd.,Luoyang 471000,China;Henan Nonferrous Engineering Survey Co.,Ltd.,Zhengzhou 450052,China)

机构地区：[1]河南中核五院研究设计有限公司,河南郑州450052 [2]河南省远基岩土工程有限公司,河南洛阳471000 [3]河南省有色工程勘察有限公司,河南郑州450052

出　　处：《能源与环保》2023年第6期90-96,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

摘　　要：随着矿山露天开采深度的不断加深,对于开采边坡稳定性评价与分析的研究愈发重要。依据矿山的开采现状,通过现场工程地质条件的分析及岩体特征完整性的研究,将区内岩石划分为辉长岩—辉石岩—花岗岩岩组、蚀变辉石岩岩组、片麻岩—片岩岩组及花岗质片麻岩4组。岩性特征的差异对不同区域边坡的稳定性产生了一定的影响,其中对边坡一区的影响较为明显。采场地质构造复杂、节理相对发育,也是影响边坡变形的关键因素,通过对矿区开展赤平极射投影的研究,发现不同的构造特征对5个边坡区域均产生一定的影响,但影响程度不尽相同,其中对边坡一区的影响程度最大。With the deepening of open-pit mining,it is more and more important to study the stability evaluation and analysis of mining slope.According to the mining status of the mine,through the analysis of on-site engineering geological conditions and the study of the integrity of rock mass characteristics,the rocks in the area can be divided into three groups:gabbro-pyroxenite-granite rock group,altered pyroxenite rock group,gneiss-schist rock group and granitic gneiss rock group.The difference of lithology characteristics has a certain influence on the stability of slope in different areas,and the influence on the first area of slope is more obvious.The complex geological structure of the stope and the relative development of joint are also the key factors affecting the slope deformation.Through the study of the equatorial polar projection of the mining area,it is found that different structural characteristics have a certain influence on the five slope regions,but the degree of influence is not the same,and the degree of influence is the largest in the first slope region.

关 键 词：赤平极射投影 边坡稳定性 夏日哈木露天矿 青海省 

分 类 号：TD854[矿业工程—金属矿开采]