1) gob-side entry retaining with large section
大断面留巷
2) gob-side entry retaining with small section
小断面留巷
3) small section entry retaining along gob side
沿空小断面留巷
1.
Taking 5201 face, Wangzhuang coal mine as an example, the measures of preventing gas consistence exceeding normal value were put forward, that is, applying small section entry retaining along gob side and layout of J-shape ventilation system.
以王庄煤矿5201综放面为例,提出采用综放沿空小断面留巷技术,布置J型通风系统,治理综放工作面瓦斯超限。
4) large rock-gateway
大断面岩巷
1.
achieved the footage above 1200m/a in large rock-gateway shingle-entry developing in 2005,which put down a base for steady development of mine.
开滦(集团)有限责任公司2005年实现了大断面岩巷单头掘进年进尺超过1200m的水平,为矿井的稳步发展奠定了基础。
2.
Achieved the footage above 1200m/a in large rock-gateway shingle-entry developing in 2005, whick put down a base for steady development of mine.
开滦(集团)有限责任公司2005年实现了大断面岩巷单头掘进年进尺1200m的水平,为矿井的稳步发展奠定了基础。
5) large-scale roadway
大断面巷道
1.
Hybrid evaluation on large-scale roadway s stability under complex and cracked condition;
复杂破碎围岩状态下大断面巷道稳定性综合分析
补充资料：异形断面钢材(见异形断面型材)
异形断面钢材(见异形断面型材)
special section steel
，一、u以uu、’“飞豆on gQngC01异形断面钢材(speeial Seetion steel)见异形断面型材。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条