平顶山矿区地形曲率对瓦斯赋存的影响

Research on influence of terrain curvature on gas content in Pingdingshan Coal Mine area

煤层瓦斯赋存是瓦斯防治的重要指标之一。根据平顶山矿区地形的数字高程模型研究了矿区的地形曲率变化,并结合矿区煤层瓦斯含量测试结果和瓦斯含量等值线图,进一步探讨了地形曲率与瓦斯赋存规律的关系。以地形曲率半径作为研究对象,结果表明,平顶山矿区地形曲率变化复杂区域煤层瓦斯含量变化范围也较大,正、负地形曲率转变地区易出现高瓦斯煤层。

Gas content was one of the important indicators of gas prevention and control,based on the digital elevation model of the terrain in Pingdingshan mining area,the change of the topographic curvature of the mining area was studied.Combined with gas content,the law between terrain curvature and gas content was given.The results showed that changes in Pingdingshan mining complex terrain curvature regions seam gas content in the range was large,positive and negative changes in areas prone terrain curvature high gas coal seams.