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.
在石油天然气开采、煤层气开发及煤矿瓦斯抽放等工程领域中，都存在着裂缝中气液二相流体渗流的问题。
In many engineering such as oil-gas exploitation, coalbed methane exploitation and extraction, there always occurs gas-liquid two-phase flow through a fracture.
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.
定向钻进技术已经成为煤矿井下抽放瓦斯长钻孔施工成套技术的关键环节。
Directional drilling technique has already become a key link in long broach construction for gas drainage of the mine.
文中结合煤矿抽放瓦斯实践，列举和分析了几种可行的煤层气开发方式。
So several development modes of coalbed gas available are listed and analyzed in this paper.
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，我国的煤矿瓦斯防治技术主要为通风、抽放等物理方法，该类方法仍不能完全满足防治煤矿瓦斯灾害的安全要求。
At present, the main technologies for controlling coal gas are physical methods such as ventilation and exhaustion; however, these methods could not fully meet the safety requirements.
钻机的研制成功为煤矿实施长距离钻孔抽放瓦斯工艺提供了可靠的安全装备。
The successful development of this drilling machine provided reliable safety equipment for coal mines to practise gas drainage technology by long holes.
研究含瓦斯煤层所处的地球物理场对煤瓦斯吸附特性的影响，对煤矿安全开采、煤瓦斯的抽放利用以及煤瓦斯突出的预测预报具有重要意义。
It is very important to mine safe exploitation, gas drawing and predict of coal and gas outburst that adsorption characteristics of coal to gas in geophysical field are studied.
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.
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.
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.
我国煤矿抽放瓦斯已有50多年历史，从技术到规模均达到世界先进水平。
There has already been a history of more than 50 years of gas drainage in our country, which has reached the advanced international standards from technology to the scale.
用有限元数值模拟方法，结合图形显示技术，对大隆煤矿综采工作面采空区瓦斯抽放问题进行了计算分析。
Basing on finite element method and visual display technology, this paper analyses the gas drainage problem of goaf in Dalong mine.
我国许多煤矿的煤层同时具有高瓦斯和严重自燃倾向，在抽放瓦斯的同时，容易造成采空区遗煤自燃。
There exist high gas and serious spontaneous combustion tendency at the same time in many coal mines in china. When the gas is pumped, it is easy to cause the spontaneous combustion of residual coal.
我国许多煤矿的煤层同时具有高瓦斯和严重自燃倾向，在抽放瓦斯的同时，容易造成采空区遗煤自燃。
There exist high gas and serious spontaneous combustion tendency at the same time in many coal mines in china. When the gas is pumped, it is easy to cause the spontaneous combustion of residual coal.
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