通风系统建模与瓦斯抽放系统相互相成。
Ventilation modeling goes hand in hand with gas drainage strategies.
瓦斯抽放形式有多种，本煤层抽放是其主要形式。
There are many kinds of forms of gas discharge, but the main form is soft coal seam gas discharge.
介绍了高低负压瓦斯抽放系统在老屋基矿的应用效果。
The application effectiveness of both high and low negative pressure systems in Laowuji Mine is described.
这两种方法在各自的条件下都取得了好的瓦斯抽放效果。
Good effectiveness was obtained for two drainage methods under its own conditions.
由于瓦斯抽放，造成采空区负压不稳定，加速了煤体氧化过程。
By gas drainage, the negative pressure isn't stable in the goal, the coal oxidation accelerates.
煤矿采动影响区是地面煤层气开发或井下瓦斯抽放的有利部位。
Infection zones of coal mining are favorable place to coalbed methane recovery in ground or gas extraction in underground.
试验结果表明，该方案明显提高了低透性煤层的瓦斯抽放效果。
The result shows that it is a very good path to improve methane drainage effect by using the way and deserves to be popularized and applied.
解决低透气性煤层瓦斯抽放问题的根本途径是增加煤层的透气性。
Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.
以塔山矿为例，在采场裂隙特征分析基础上，实施采场卸压瓦斯抽放试验。
Taking tashan Mine as a example, according to the analysis based on the Characteristics of the Cracks in Stopes, experimental research of stress-relieve gas drainage is worried about.
采用优化后的方法可以提高瓦斯抽放效果，减少钻孔数量从而节省施工投入。
It can improve gas suction effect, reduce drilling hole amount and save construction investment.
高瓦斯低透性煤层的瓦斯抽放，一直是煤矿安全生产过程中的重大技术难题。
Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production.
研究结果对该地区16号煤层的注水、瓦斯抽放等工程实践具有一定的意义。
Results of this research can provide certain references to coal seam infusion and gas suction in this region.
宣东二号矿布设施工的大口径瓦斯抽放井以小口径导向钻进，后逐级扩孔成井。
The large-diameter gas drainage well laid out in the Xuandong No. 2 Mine used small-diameter pilot drilling, then gradually reaming the borehole and finally completed to designed size.
宣东二号矿布设施工的大口径瓦斯抽放井以小口径导向钻进，后逐级扩孔成井。
Mine used small-diameter pilot drilling, then gradually reaming the borehole and finally completed to designed size.
主要介绍了阳泉煤矿目前主要的瓦斯抽放技术和方法及其适应范围和确定依据。
This paper introduces the main gas extraction and drainage techniques used in Yangquan Coal Mine at present and the application scope and deterministic accordance of these techniques.
介绍了应用GPRS的煤矿瓦斯抽放监测系统的组成方式、功能、主要设备、特点。
The structure mode, function, main instrument and feature of gas monitoring systems with GPRS for to take out and give out the gas are introduced.
瓦斯灾害严重影响我国煤矿生产的安全，瓦斯抽放是防止瓦斯灾害事故的根本途径。
Gas disasters seriously influence the coal production safety in China coal mines. Gas extraction is the basic way to prevent gas disasters.
这些结论对于检测煤层瓦斯抽放率以及合理确定煤巷的维护周期具有重要的参考价值。
These conclusions aid to measure drainage rate of gas and fixing on maintenance period of coal laneway.
煤层深孔预裂爆破近年来在瓦斯抽放中运用日益增多，但目前对其爆破理论研究较少。
The technique of deep-hole presplitting blasting in coal bed is widely used for gas predrainage recently; but its blasting theory is not clear up to now.
为了提高矿井瓦斯抽放量，重点分析了综放工作面的瓦斯抽放和瓦斯抽放管网系统方面。
In order to improve gas drainage volume, gas drainage on fully mechanized caving face and gas drainage pipeline network system are analyzed.
目前在瓦斯抽放中急待解决的问题是软煤层瓦斯抽放的打钻技术，尤其是深孔打钻技术。
At the present, the problem which is urgently to be solved in gas discharge is the drilling technology in soft coal seam gas discharge, especially the drilling technology of the deep hole.
因此，解决低渗透煤层的瓦斯抽放已成为确保煤矿安全生产，提高煤矿生产效率的关键环节。
So it become the key link solving the gas extraction in low-permeability coal beds to insure in coal mine security and enhance production efficiency.
目前国内外煤层气地面开采技术、井下瓦斯抽放技术均已成熟，四川煤层气开发利用是可行的。
At present, the technique of coal-bed methane surface mine and gas drainage was mature, so it was feasible for coal-bed methane development and utilization in Sichuan Province.
突出煤层顺层长钻孔的施工由于受到施工技术的限制达不到预定的深度，影响了瓦斯抽放效果。
The drilling operation of long holes along outburst coal seam usually can't reach their preset depth since it is handicapped by drilling techniques, which will thus influence gas drainage effect.
简要论述了深孔爆破提高瓦斯抽放的机理，以煤体中柱状装药爆炸后的裂隙圈半径进行了计算。
The principle of increasing gas emission rate by long hole blasting in the crossing hole is discussed. The radius cracked zone in coal seam caused by long hole blasting is calculated.
简要论述了深孔爆破提高瓦斯抽放的机理，以煤体中柱状装药爆炸后的裂隙圈半径进行了计算。
The principle of increasing gas emission rate by long hole blasting in the crossing hole is discussed. The radius cracked zone in coal seam caused by long hole blasting is calculated.
应用推荐