利用穿层瓦斯抽采钻孔探测煤层小褶曲工程实践

关金锋; 马静驰; 丁志伟; 崔洪庆; 李长兴

利用穿层瓦斯抽采钻孔探测煤层小褶曲工程实践

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- 发布日期: 2018-06-19

Engineering Practice of Using Through-layered Gas Drainage Drilling Hole to Detect Small Folds in Coal Seam

摘要

摘要: 探明煤层小构造对煤矿的安全生产至关重要，根据古汉山矿二₁煤层穿层瓦斯抽采工程特点，分析了利用穿层瓦斯抽采工程进行地质探测的可行性，建立了试验工作面小构造预测数学模型。结合试验工作面瓦斯抽采工程现场施工数据，通过绘制煤层底板三维曲面图、煤层底板等高线图、煤层底板趋势面残差图以及煤层厚度等值线图, 综合判断：在工作面通尺150～250 m之间，存在波长100 m左右、轴走向为N58°W的小褶曲。现场实际揭露情况与理论预测结果基本吻合，指导了工作面安全开采。
- 安全工程 /
- 穿层瓦斯抽采钻孔 /
- 预测模型 /
- 煤层小褶曲 /
- 探测
Abstract: It is very important to forecast concealed geological structure for coal mine safety production. Based on characteristics of Ⅱ₁coal seam gas drainage engineering in Guhannshan Mine, the mathematical model for the small structure of the test face is established by analyzing feasibility of the gas drainage engineering of through beds hole. Combined with the field construction data of gas extraction project in the test working face, by drawing the three dimensional surface diagram of coal seam floor, contour map of coal seam floor, trend surface residual diagram of coal seam floor and the contour map of coal seam thickness, we comprehensively determine that there is a small fold with the wavelength of 100 m, the axis direction of N58°W and the working face ruler between 150 m and 250 m. The actual situation of coal production is consistent with the theoretical prediction of the small fold, which gives an effective guidance during the process of the working face mining.
- safety engineering /
- through-layered gas drainage drilling hole /
- forecasting model /
- coal small fold of coal seam /
- detection

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参考文献(15)

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利用穿层瓦斯抽采钻孔探测煤层小褶曲工程实践

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出版历程

Engineering Practice of Using Through-layered Gas Drainage Drilling Hole to Detect Small Folds in Coal Seam

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出版历程

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