1) bursting tager
突出层
2) outburst coal
突出煤层
1.
Application of hydraulic flushing technology in severe outburst coal;
水力冲孔技术在严重突出煤层中的应用
2.
(Adopting the) measure of hydraulic extrusion at outburst coal seam,stress concentration region of coal seam was moved forward,pressure relief region was widened,and the gas was released ef.
在突出煤层采用水力挤出措施,可使工作面前方煤体应力集中带前移,卸压带增宽,同时大幅度释放了煤体中的瓦斯,取得了明显的防突效果,巷道掘进速度提高了1。
3) outburst coal seam
突出煤层
1.
The outburst coal seam usually appears to the spray holes phenomenon in the process of eliminating outburst by drilling holes construction.
突出煤层在采用钻孔施工消突过程中,经常出现喷孔现象,造成瓦斯超限,给安全生产带来极大的安全隐患。
2.
It is a new technology developed in recent years using the VLD-1000 drilling rig made in Australia which can drill with the depth of 1 km to drill in an outburst coal seam for pre-pumping gas.
利用澳大利亚生产的VLD—1000型千米钻机,在突出煤层掘进中打钻预抽瓦斯是近几年发展起来的一项新技术。
3.
According to different geological conditions,before using Anti-well technology to drill pilot holes and reaming,the soft coal bunker coal(rock) layer reinforcement and elimination outburst as well as grouting reinforcement of outburst coal seam are necessary.
根据不同的地质条件,采用反井技术施工煤仓前对松软煤(岩)层进行加固,对突出煤层进行先消突后注浆加固,而后利用反井钻机导孔、扩孔,最后采用钻爆法将煤仓刷扩成型。
4) coal bumps
煤层突出
1.
Developed a new translatory model of coal bumps by adopting Hoek-Brown failure criterion instead of Mohr-Coulomb failure criterion initially proposed by Lippmann H in 1989.
赵各庄矿的实例研究表明,改进后的Lippmann煤层平动突出模型适用于顶底板为岩石的煤巷或半煤岩巷煤层整体冲击的机理分析,为合理确定煤层突出范围度量指标以及煤层整体平动突出倾向性的判定提供了理论依据。
2.
Considering the effect of gas pressure on the coal bumps, the stress of gas-coal is analyzed by means of the elastic-plastic theory.
本文将含瓦斯煤层视作多孔变形介质,利用弹塑性力学的方法建立了考虑瓦斯情况下的煤层突出模型,得到煤层的活动区长度和应力分布的解析解,综合体现了载荷、瓦斯及煤的物理力学性质的共同影响。
5) outburst seam
突出煤层
1.
Reversed program mining in gas outburst seam with short distance to below seam;
瓦斯突出煤层近距离反程序开采
6) seam with potential outburst danger
突出危险性煤层
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