| 准格尔煤田不连沟矿井构造特征及其对煤矿生产的影响 |
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| 引用本文： | 马良,郭瑞.准格尔煤田不连沟矿井构造特征及其对煤矿生产的影响[J].煤田地质与勘探,2020,48(3):35-44,50. |
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| 作者姓名： | 马良 郭瑞 |
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| 作者单位： | 中煤科工集团西安研究院有限公司,陕西西安 710077;内蒙古蒙泰不连沟煤业有限责任公司,内蒙古鄂尔多斯 010321 |
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| 基金项目： | 科技创新基金;国家科技重大专项 |
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| 摘 要： | 准格尔煤田位于鄂尔多斯盆地伊盟隆起和晋西褶曲带的转折部位,煤田内的矿井构造样式多样,而且矿井生产揭露前后构造复杂程度发生了重大变化。以不连沟矿井地质勘查和矿井揭露的褶皱、断层、岩溶陷落柱、火成岩侵入体等地质构造为主要研究对象,通过数理统计方法对矿井内的构造发育特征进行了定量或半定量评价,分析不同地质构造的形成机制、演化背景及矿井构造复杂程度变化的主要原因,统计分析不同类型地质构造对矿井采掘生产的影响,总结矿井地质构造探查经验,提出适应于该区的构造探查思路。结果表明:不连沟煤矿构造样式多样,构造发育的分区特征明显,构造组合具有耦合性;矿井中部的弧形坡折带及波状褶皱形成开始于加里东构造运动,属于黄河断裂和呼-清断裂的伴生构造;区内走向EW(或近EW向)和NW断层组合是鄂尔多斯盆地印支期S-N向挤压应力和燕山期NW-SE向挤压应力共同作用的结果。各类地质构造制约着矿井采区部署、巷道掘进、工作面回采速度,造成大量资源损失,给矿井防治水带来巨大挑战。针对类似研究区的复杂矿区,建议采用三维地震勘探扫面,井下槽波、电法勘探靶区圈定,定向钻验证的"物探、钻探,地面、井下"相结合的综合探查方案。
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| 关 键 词： | 构造特征 构造探查 采掘影响 不连沟煤矿 准格尔煤田 |
| 收稿时间： | 2019-12-03 |
The structural characteristics and their influence on production of Buliangou coal mine |
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| MA Liang,GUO Rui.The structural characteristics and their influence on production of Buliangou coal mine[J].Coal Geology & Exploration,2020,48(3):35-44,50. |
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| Authors: | MA Liang GUO Rui |
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| Institution: | (Xi’an Research Institute Co.Ltd.,China Coal Technology and Engineering Group Corp.,Xi’an 710077,China;Inner Mongolia Mengtai Buliangou Coal Industry Co.Ltd.,Ordos 010321,China) |
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| Abstract: | Jungar coalfield is located at the turning point of Yimeng uplift and Jinxi flexure belt in Ordos basin. There are many kinds of mine structures in the coalfield, and the structural complexity has changed greatly before and after the exposure by mine production. Taking the fold, fault, karst collapse column, igneous rock intrusion and other geological structures exposed by geological exploration and mining as the research object, quantitative or semi-quantitative evaluation of structural development characteristics in the mine was carried out by means of mathematical statistics, and the formation mechanism, evolution background of different geological structures were analyzed. The main reasons for the change of mine structure complexity were found, and the influence of different types of geological structure on mining production was analyzed. The experiences of the structural exploration were summarized, and the routes of the exploration of the structure was established. The results show that the structural styles of Buliangou coal mine are various. The zoning characteristics of structural development are obvious, and the structural combination is coupling. The arc-shaped slope break belt and wave fold in the middle of the mine belong to the associated structure of Yellow river fault and Hu-Qing fault, formed from Caledonian tectonic movement. The combination of EW(or near EW) and NW faults in the area is the result of the joint action of Indosinian S-N compressive stress and Yanshanian NW-SE compressive stress in Ordos basin. All kinds of geological structures restrict the location of the mining area, affect the tunneling, mining speed of working face, cause a lot of resource loss, and bring a huge challenge to the prevention and control of mine water. According to the geological structure characteristics of similar mine, a comprehensive geological structure detection method combining “geophysical exploration, drilling, surface and underground” with high-precision full-digital three-dimensional seismic exploration on the ground, delineation of exploration target areas by underground in-seam wave and electrical method, and directional drilling verification with drilling instead of roadway is proposed. |
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| Keywords: | structural features structural exploration mining influence Buliangou coal mine Jungar coalfield |
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