所得结论对注气开采煤层气设计和评价具有指导意义。
These conclusions have guidance significance to exploitation coal bed methane by gas injection.
介绍在分层开采煤层中，在假顶条件下实现锚杆支护。
In slicing seams, bolt supporting was utilized under false roof and obtained good result.
为有效开采煤层气，应用定向钻进技术施工煤层气定向井。
For mining CBM effectively, directional CBM production Wells were drilled through the application of directional drilling.
提出了带压开采煤层的方案，并对该方案的可行性进行了论证。
Finally a plan of coal mining under pressure is put forward, and the feasibility of the plan is demonstrated as well.
同时由于我国煤层气自身的特点，开采煤层气具有一定的困难。
At the same time because of the characteristic of coal gas of our country, it is difficulty to mine.
研究成果可为煤层中注热开采煤层气的工程实践提供相应的理论基础。
The research results could provide corresponding theoretical basis for engineering practices of exploiting coal methane by heat injection.
正确预测开采煤层自燃发火的趋势与危险性，对煤矿安全生产具有重要的指导意义。
Accurate prediction of the tendency of spontaneous combustion risk in mining coal layers is of great importance in production safety of coal mine.
地下开采煤层的分布形式多种多样，平面分布仅是曲面分布形式中的一种简单情况。
The distribution patterns of underground coal seam is diversified. The plane distribution is only one of the simple curved surface distribution patterns.
开采煤层气资源，同时从根本上预防煤矿瓦斯灾害事故的发生，保护大气环境是人们追求的理想目标。
To exploit methane resources, prevent from the occurrence of the mine gas accident by the root at the same time and protect the atmosphere environment are ideal target that the people pursue.
对钻井水力压裂开采煤层气时，所形成的裂缝产状和形态进行了理论分析。提出了裂缝倾角、走向和形状的确定依据。
Occurrences and forms of hydraulic fractures in drilling wells are analyzed for extraction of coalbed methane(CBM). The determination basis of dips, strikes and shapes of the fractures are presented.
为开采煤层气提高煤气产量，设计钻探了岚m 1 - 1煤层气多分支水平井，该井煤层气储量大，埋深在900 m处左右。
To increase output of coalbed gas well, we have designed and drilled Lan M1-1 coalbed gas multi-branch horizontal well. With a large coalbed gas reserves, the buried depth is about 900 m.
注热开采煤层气是学术界普遍认同的很有可能成为未来煤层气资源的实际开采方法，但是注热开采煤层气增产机理还存在较大争议。
The technology of heat injection to exploit coal-bed gas that the scholar identified commonly maybe becomes a practical way, but there is a big disputed to the mechanism of the technology.
未开采煤层瓦斯含量及影响因素研究，是煤矿安全生产的重要基础研究工作，以铁法盆地晓南矿未开采的14#煤层为例，系统分析了影响瓦斯含量的地质因素。
We take the 14# coal seam of Xiaonan coal mine of Tiefa basin as an example and analyse the geologic agent systematically which influences the gas content.
综采放顶煤技术已成为厚煤层开采的高产高效采煤技术。
Fully mechanized caving mining has became mining technology of high output and efficiency in thick coal seam mining.
新型采煤法的实施有利于避免急斜近距煤层开采的相互影响，提高生产能力和采出率，形成规范的通风系统。
The application of new mining method is benefic to avoiding mutual effect between steeply inclined near coal seams, improving production ability and recovery, forming canonical ventilation system.
通过对MG 150pw极薄煤层采煤机的参数、结构设计原理进行分析，论述在极薄煤层开采中的发展前景。
Through analysing the parameter, construction, designing principle of MG150PW extremum thin seam coal winning machine. This paper discusses its developing vista in extremum thin seam mining.
以哈拉沟煤矿2 - 2煤层的开采系统为例，介绍了神东矿区连续采煤机短壁式机械化开采的巷道系统及其相关参数。
Taking 2-2 coal seam of Halagou coal mine for example, laneway system and its interrelated parameters with short-wall and continuous mining machine in Shendong mining area were introduced.
透水、地下煤层防灭火、深部开采问题、大倾角采煤已经成为困扰鸡西煤炭开采的技术问题。
We are puzzled by the pervious to water, the underground coal seam fire prevention, the question of deep zone mining and coal mining from incidence in Jixi.
本文研究对减小煤柱尺寸，提高房柱式采煤回采率具有明显的理论指导意义，对解决我国生产矿区面临的不规则区段煤层开采问题具有实际意义。
These studies have evident theoretical significance to decrease coal pillar size and enhance recovery ratio, and practical importance to solve the problems of irregular seam mining in our country.
对比分析了滚筒采煤机与刨煤机的特性，并将刨煤机开采技术运用于中等及薄煤层的开采中，提高了煤炭生产效率，实现了工作面采煤的全部自动化，具有广泛的推广和应用价值。
The technology of coal plough have been applied in the exploitation of medium-sized and thin coal seam through analysing and comparing the characteristic of cylinder mining machine and coal plough.
介绍了非正规采煤法“树枝状”采煤法在极薄煤层开采中的实际应用；
The actual application of the irregular mining method "tree branch form" mining method in the coal pipe is introduced.
阐述了哈拉沟煤矿主采煤层顶板的赋存特征，以现场监测、现场调研为手段，分析了煤层开采、护巷煤柱尺寸及地下水对煤巷顶板稳定性的影响，为今后煤巷顶板稳定性分类及合理支护提供依据。
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roof stability of coal roadways is analyzed.
随着煤层气的开采煤基质的收缩作用增大了煤层渗透性。
With development of the coalbed methane, the shrinking function of the coal base material would enlarge the permeability of the seam.
针对难采煤层的不同特点，提出了不同的开采方法。
In accordance with different characteristics for difficult mining layer, puts forward the different technique projects.
此刨煤机工作面以仅1.5米的采高总共向前推进了21.5米，这样的煤层高度对于采煤机来说也是可以开采的。
The plow face advanced a total of 21.6 meters with a cutting height of only 1.5 meters - an achievement impossible for any shearer in such seam heights.
此刨煤机工作面以仅1.5米的采高总共向前推进了21.5米，这样的煤层高度对于采煤机来说也是可以开采的。
The plow face advanced a total of 21.6 meters with a cutting height of only 1.5 meters - an achievement impossible for any shearer in such seam heights.
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