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| 煤体瓦斯放散指标修正研究 | |
| 引用本文： | 常未斌,马丕梁,樊少武,张浪. 煤体瓦斯放散指标修正研究[J]. 煤矿开采, 2013, 18(1): 11-13 |
| 作者姓名： | 常未斌 马丕梁 樊少武 张浪 |
| 作者单位： | 煤炭科学研究总院矿山安全技术研究分院,北京100013;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 |
| 基金项目： | 国家科技重大专项(2011ZX05040-001-1);国家重点基础研究发展计划(973)资助项目(2011CB201206) |
| 摘 要： | 通过理论推导确定了煤体1min解吸的瓦斯量,提出了描述瓦斯放散能力的指标Q1,该指标的物理意义更加明确,能反映煤体真实的瓦斯放散能力;对比分析了ΔP指标和Q1指标,通过实验验证了对于高瓦斯放散能力和低瓦斯放散能力的煤体用ΔP指标预测突出危险性是不适用的,提出了3个判据验证ΔP指标的合理性,确定了测定Q1指标的方法。 |
| 关 键 词： | 煤体瓦斯放散能力 瓦斯放散初速度指标(ΔP) Q1指标 |
Research on Diffusion Index Amendment of Methane in Coal Body |
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| CHANG Wei-bin , MA Pi-liang , FAN Shao-wu , ZHANG Lang. Research on Diffusion Index Amendment of Methane in Coal Body[J]. Coal Mining Technology, 2013, 18(1): 11-13 | |
| Authors: | CHANG Wei-bin MA Pi-liang FAN Shao-wu ZHANG Lang |
| Affiliation: | 1,2(1.Mine Safety Technology Research Branch,China Coal Research Institute,Beijing 100013,China; 2.State Key Laboratory of Coal Resource High-efficiency Mining and Clean Utilization,China Coal Research Institute,Beijing 100013,China) |
| Abstract: | This paper present Q1 index to stand for methane diffusion ability whose physical significance was clearer than methane diffusion initial velocity index-ΔP and could show real methane diffusion ability of coal body.By comparing Q1 index with ΔP index,it was showed that ΔP index was inadaptable for coal body with high methane diffusion ability and low methane diffusion ability.3 criteria were present for verifying rationality of ΔP index and method for measuring Q1 index was obtained. |
| Keywords: | methane diffusion ability methane diffusion initial velocity index(ΔP) Q1 index |
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