• 论文
主办单位:煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
中国煤矿动力地质灾害的构造背景与风险区带划分
  • Title

    Tectonic setting and risk zoning of dynamic geological disasters in coal mines in China

  • 作者

    曹代勇占文锋李焕同李小明刘德民魏迎春

  • Author

    CAO Daiyong1,2 ,ZHAN Wenfeng3 ,LI Huantong4 ,LI Xiaoming5 ,LIU Demin5 ,WEI Yingchun1,2

  • 单位

    中国矿业大学(北京) 地球科学与测绘工程学院中国矿业大学(北京) 煤炭资源与安全开采国家重点实验室北京工业职业技术学院西安科技大学 地质与环境学院华北科技学院 安全工程学院

  • Organization
    1. College of Geoscience and Surveying Engineering,China University of Mining and Technology (Beijing),Beijing  100083,China; 2. State Key Laboratory of Coal Resources and Safe Mining,China University of Mining & Technology ( Beijing),Beijing  100083,China; 3. Beijing Polytechnic College,Beijing 100042,China; 4. College of Geology and Environment,Xi’an University of Science and Technology,Xi’ an  710054,China; 5. College of Safety Engineer- ing,North China Institute of Science and Technology,Beijing  101601,China
  • 摘要

    煤与瓦斯突出、矿井突水、冲击地压、冒顶等煤矿动力地质灾害对煤炭安全生产构成严重威胁,加强煤矿动力地质灾害形成机理和分布规律研究是确保煤矿安全生产的前提条件和基础工作。煤矿动力地质灾害是静态地质环境与开采扰动耦合作用的结果,区域构造背景通过构造变形产物、构造形成过程和构造应力场等方式决定煤矿床赋存方式和动力环境,从而影响煤矿动力地质灾害的发生。通过实例研究和理论分析,把致灾构造因素归纳为断层构造、褶皱构造、构造复杂程度、构造活动性、煤变形-变质特征、煤层赋存深度等六大类,各类构造因素对不同地质灾害的影响程度不同。研究表明,受煤田构造格局的控制,中国煤矿动力地质灾害具有东强西弱、北强南弱的基本特点;规模大、损失严重的煤矿动力地质灾害主要发生在东部煤田构造域,尤其是大兴安岭—太行山二级构造带以东的东北赋煤构造区中东部、华北赋煤构造区东部和华南赋煤构造区中部,以及受特提斯地球动力学体系与太平洋地球动力学体系复合作用控制的华南赋煤构造区西部。根据致灾构造因素和动力地质灾害特征,结合煤系赋存特点和煤炭开发现状,将基于区域构造背景控制的煤矿动力地质灾害风险等级分为Ⅰ级(低风险)、Ⅱ级(中风险)和Ⅲ级(高风险)等3个等级。从中国煤田构造格局的时空差异性出发,在中国赋煤构造单元框架内进行煤矿主要动力地质灾害风险区带划分,东北、华北、华南和西北四大赋煤构造区共划分煤矿动力地质灾害Ⅲ级区带11个、Ⅱ级区带7个,其余地区属于Ⅰ级区带或未评价区域。

  • Abstract
    Coal and gas outburst,mine water inrush,rock burst,roof fall and other dynamic geological disasters in coal mines have seriously threatened the coal mining safety. Further research on the formation mechanism and distribution law of mining dynamic geological disasters is the precondition and basic work to ensure the safe production of coal mine. The formation of dynamic geological disasters in coal mines is the result of coupling action of the static geological environment and the mining disturbance. The regional tectonic setting determines the occurrence feature and dynamic environment of coal deposits by means of the structural deformation products,the structural formation process and the tectonic stress field,and result in the risk of dynamic geological disasters. Based on the cases study and theoretical analysis,the disaster-causing structure factors can be summarized into six types:faults,folds,structural complexity, tectonic activity,coal deformation-metamorphism,coal seam buried depth,etc. ,and the different types of structural factors have different effects on different geological disasters. Controlled by the coalfield tectonic framework,the inten- sity of mining dynamic geological disasters increases from west to east and from south to north in China. The large- scale and serious-damaged disasters mainly occur in the eastern coalfield tectonic domain,especially to the east of the secondary-order structure belt of Daxinganling Mountain-Taihang Mountain,in the east-central part of Northeast China coal occurrence structural areas,the east part of North China coal occurrence structural areas and the central part of South China coal occurrence structural areas,and the western part of South China coal occurrence structural areas which is controlled by the Tethys geodynamics system and the Pacific geodynamics system. According to the character- istics of disaster-causing structure factors and dynamic geological disasters,and combined with the coal measures oc- currence and coal mining status,the mining dynamic geological disasters controlled by regional tectonic setting can be divided into three risk grades:grade I ( low risk),grade II ( medium risk) and grade III ( high risk). Based on the space-time difference of China’s coalfield tectonics,the risk zone division of main dynamic geological disasters in coal mines is carried out within the framework of coal occurrence structural units in China,there are 11 zones of grade Ⅲ and seven zones of grade Ⅱ in four major coal occurrence structural areas of Northeast China,North China,South Chi- na and Northwest China,the rest belong to grade I zones or unevaluated areas.
  • 关键词

    煤矿动力地质灾害致灾构造因素煤田构造区域构造背景风险区带划分

  • KeyWords

    dynamic geological disasters in coal mines;disaster-causing structure factors;coalfield structure;regional tectonic setting;risk zones dividing

  • DOI
  • Citation
    CAO Daiyong,ZHAN Wenfeng,LI Huantong,et al. Tectonic setting and risk zoning of dynamic geological disasters in coal mines in China[J]. Journal of China Coal Society,2020,45(7):2376-2388.
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