李培, 范文, 于国强, 梁鑫, 苏艳军. 2018: 秦岭矿产资源开采区斜坡灾害发育规律与识别研究——以山阳—商南钒矿开采区为例. 工程地质学报, 26(5): 1162-1169. DOI: 10.13544/j.cnki.jeg.2018032
    引用本文: 李培, 范文, 于国强, 梁鑫, 苏艳军. 2018: 秦岭矿产资源开采区斜坡灾害发育规律与识别研究——以山阳—商南钒矿开采区为例. 工程地质学报, 26(5): 1162-1169. DOI: 10.13544/j.cnki.jeg.2018032
    LI Pei, FAN Wen, YU Guoqiang, LIANG Xin, SU Yanjun. 2018: DISTRIBUTION AND IDENTIFICATION OF GEOHAZARDS IN QINLING MINING AREA: A CASE STUDY OF SHANYANG-SHANGNAN VANADIUM MINING AREA. JOURNAL OF ENGINEERING GEOLOGY, 26(5): 1162-1169. DOI: 10.13544/j.cnki.jeg.2018032
    Citation: LI Pei, FAN Wen, YU Guoqiang, LIANG Xin, SU Yanjun. 2018: DISTRIBUTION AND IDENTIFICATION OF GEOHAZARDS IN QINLING MINING AREA: A CASE STUDY OF SHANYANG-SHANGNAN VANADIUM MINING AREA. JOURNAL OF ENGINEERING GEOLOGY, 26(5): 1162-1169. DOI: 10.13544/j.cnki.jeg.2018032

    秦岭矿产资源开采区斜坡灾害发育规律与识别研究——以山阳—商南钒矿开采区为例

    DISTRIBUTION AND IDENTIFICATION OF GEOHAZARDS IN QINLING MINING AREA: A CASE STUDY OF SHANYANG-SHANGNAN VANADIUM MINING AREA

    • 摘要: 以山阳—商南钒矿开采区为例,通过遥感解译、无人机航拍及野外详细地质调查,统计分析了斜坡地质灾害的分布与坡形、坡向、坡度、地层倾角、岩体结构与岩性的相关性。研究得出:(1)矿区斜坡地质灾害具有明显的顺向坡效应,顺向坡地质灾害占灾害总数的75.86%;(2)72.42%的灾害发育在坡度30°~50°的斜坡中;(3)灾害分布与地层倾角有很好的对应关系,大部分地质灾害集中在倾角40°~60°的范围内;(4)斜坡灾害多发生在结构面较发育的斜坡中,尤其是夹角在70°~90°的近乎正交的结构面组合范围内;(5)斜坡灾害多发育在硅质岩或白云岩与黏土岩互层中,而白云岩中多发生的是崩塌。同时,结合研究区遥感影像的对比分析,提出了斜坡地质灾害遥感识别方法,在此基础上,形成了一套矿区地质灾害早期识别技术。研究成果可为矿山企业和矿区居民对斜坡地质灾害的识别与预警预防提供技术支持。

       

      Abstract: On the basis of remote sensing interpretation, drones pictures and geological field survey, we analyzes the correlation between the distribution of slope geological hazards and the slope factors including shape, topographic slope, dip angle, structure characteristics and the lithology in Shanyang-Shangnan Vanadium mining area. The results are as follows. (1)The distribution of geohazards in the mining area has a marked bedding-dipping slope effect. The geological disasters of such slopes are 75.86% of the total. (2)72.42% of the slope hazards are concentrated in the slopes with angles of 30° to 50°. (3)The slope hazards have a corresponding relationship with the stratum inclination. Most geological disasters are concentrated in the range of bedding dip angles from 40°to 60°. (4)The slope hazards tend to occur in the combination of structural planes with the intersection angles within the range of 70°to 90°. The nearly orthogonal combination of structural planes has significant amplification effect of collapses. (5)The study also shows that the slope hazards usually occur in the siliceous rocks or interbedding of dolomite and clay rocks, while collapse occurs in dolomite. At the same time, we propose a remote sensing identification method for slope disasters, combining with the comparative analysis of remote sensing images in the study area. Then, we find a set of early identification method for slope hazards in mining areas. This research can provide technical support for mining enterprises and residents to identify and prevent slope disasters.

       

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