1) bow-shapedadvancing mining process
"弓形"推进回采工艺
2) improvement returns to adopt a craft
改进回采工艺
3) mining technology
回采工艺
1.
Research on mining technology of combined mining at large inclined angle "three soft" coal seam
“三软”煤层大倾角综采回采工艺研究
2.
That is to say,with the increased length in strike,improved mining technology,improved gateway layout,optimized production system and others,the mining rate in th.
针对薄及中厚急倾斜煤层的这些特点,提出了薄及中厚急倾斜煤层采煤方法改进方向和优化方法,即通过加大采区走向长度、改进回采工艺和改进巷道布置方式,优化生产系统等方法,可以大幅提高薄及中厚急倾斜煤层开采效率。
3.
According to the up an d down coal mining face features and the advanced experiences of the combined mining for seams with a closed distance at home and broad,the paper rationally set the mining technology and the alternate distance for the up and down seam mining.
根据上下采面的特点并借鉴国内外近距离煤层联合开采的先进经验,制定了合理的回采工艺和上下煤层开采的走向错距。
5) stoping technology
回采工艺
1.
Through introduction of stoping technology and acumulating conditions of a gently-placing working face coal bed in Dahonggou Coal Mine,The application achievements of key technology are summarized.
通过对大洪沟煤矿一个轻放工作面煤层赋存条件和回采工艺的介绍,总结其关键技术应用成果,对在急倾斜煤层内建设高产高效的现代化采煤工作面具有较强的借鉴意义。
2.
According to the present technical condition of Anqing copper mine,stability of stope and rationality of stoping technology are studied,basing on these productions of rock mechanics,engineering geology,blasting filler and blasting vibration effect.
根据安庆铜矿现有的开采技术条件 ,运用岩石力学、工程地质、爆破漏斗及爆破地震效应等方面的研究成果 ,针对采场的稳定性及回采工艺的合理性进行研究 ,从而增强了安全性 ,提高了采场生产能力。
3.
This paper dominantly described the experimental study of the method of mechanized horizontal slicing and resuig-flling for the mining of gentle-dip narrow vein of Xiang-Xi Gold Deposit including stoping technology, throwingfill technique, application of mininature scraper, techno-economic index etc.
本文主要论述湘西金矿缓倾斜薄矿脉采矿方法的回采工艺、抛掷充填技术、微型铲运机的应用、技术经济指标等项研究内容。
6) Stoping process flow
回采工艺流程
补充资料：弓形
一条圆弧及其所对的弦所围成的图形。弓形的弧简称弓形弧，顶点在弓形弧上，两边各通过弓形弧两端的角称为弓形角，弓形的弦称为弓形的底，弧的中点到底的距离称为弓形的高。当弓形弧为劣弧时，称为劣弓形；当弓形弧为优弧时，称为优弓形。
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