基于瓦斯涌出量的采动稳定区煤层气资源量计算  

Calculation of Coalbed Methane Resources in Mining Stability Zone Based on Gas Emission

作　　者：李丹 LI Dan(Mine Safety Technology Branch,China Coal Research Institute,Beijing 100013,China;National Key Lab of Coal High Efficient Mining and Clean Utilization(China Coal Research Institute),Beijing 100013,China)

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤矿安全》2020年第4期162-166,共5页Safety in Coal Mines

基　　金：国家重点研发计划资助项目(2017YFC0804200)。

摘　　要：为计算煤矿采动影响稳定区煤层气资源,首先依据工作面顶板垮落带和导水断裂带高度和底板破坏带深度以及工作面四周本煤层瓦斯极限排放宽度,提出了工作面受采动影响形成的裂隙空间范围,并由此构建了采动影响区域原始煤层气资源量计算模型和方法;其次利用工作面瓦斯涌出量预测法对工作面损失煤层气资源量进行了计算;最后依据物质平衡原理,建立了采动稳定区煤层气资源量计算方法。To calculate the coalbed methane resources in the stable area affected by coal mining, firstly, based on the height of roof caving zone and the water conducting fracture zone, the depth of floor failure zone, and the limit gas emission width of coal seam around working face are studied, the calculation model and method of original CBM resources in mining influence area are established;secondly, the loss of coalbed methane resources in working face is calculated by using the prediction method of gas emission from the working face;finally, according to the principle of material balance, a method for calculating the CBM resources in mining stability zone is established.

关 键 词：采动稳定区 煤层气资源 预测法 物质平衡 瓦斯涌出量 

分 类 号：TD712[矿业工程—矿井通风与安全]