秦岭北麓露天矿区地质环境评价
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国家自然科学基金资助项目(4167020392)


Geological Environment Evaluation of Open Pit Mining Area in North Piedmont of the Qinling Mountain
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    摘要:

    为了揭示秦岭北麓矿山开采对生态环境的影响,利用现场调查和遥感解译相结合的方法开展了矿山地质环境问题调查。选取地质环境条件、地质灾害发育情况以及破坏治理现状为中间变量层,各变量层分别包括微地貌、水文地质、地层岩性,崩塌灾害、泥石流灾害,弃渣压占现状、土地复垦现状和灾害防治现状等影响指标层,利用层次分析法(AHP)确定各影响因子的权重并结合ArcGIS的空间分析功能进行了矿山地质环境评价分区。结果表明:研究区山地与台塬交接的山麓地带地层岩性较差、崩塌灾害严重,东部202省道沿线地区废渣占压问题严重、泥石流灾害发育。矿山所在区域的地质环境综合评价多为中和差,且202省道沿线的环境条件尤为恶劣,这一评价结果与秦岭北麓的现场调查结果具有较好的一致性。评价结果可为政府等有关部门开展矿山地质环境恢复治理工作提供理论依据。

    Abstract:

    In order to reveal the impact of mining in the north piedmont of Qinling Mountain on the ecological environment,combination of on-site investigation and remote sensing interpretation was used in this paper to investigate the geological environment of the mine. The geological environment conditions,the development of geological disasters and the present situation of damage control were selected as the intermediate variables. Each of intermediate variables includes microgeomorphology,hydrogeology,strata lithology;collapse disaster,debris flow disaster;waste slag pressure occupation status,land reclamation status and disaster prevention and control status. The effect of each impact factor was determined by analytic hierarchy process (AHP) and combined with the spatial analysis function of ArcGIS carrying out mine geological environment assessment and map division.The results show that the piedmont of the mountain where the mountain and the platform in the study area are in contact with each other is poor in stratigraphic lithology,and the collapse disaster is serious. The problem of waste slag in the area along the eastern province of 202 is serious and the debris flow disaster is developing.The comprehensive evaluation of the geological environment in the mine area is mostly medium or poor,and the environmental condition along the 202 provincial road is particularly bad. This evaluation result is in good agreement with the field investigation results of the north piedmont of the Qinling Mountain. The evaluation results can provide theoretical basis for the government and other relevant departments to carry out mine geological environment governance and restoration.

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朱涛,苏生瑞,王锴,周阳.秦岭北麓露天矿区地质环境评价[J].河北工程大学自然版,2019,36(4):106-112

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  • 收稿日期:2019-09-21
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  • 在线发布日期: 2019-12-31
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