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- blasting coal face with sublevel caving 炮采放顶煤工作面
- Discussion on roof control reform for blasting coal face under wire mesh roof 网下炮采工作面顶板管理改革探讨
- Keywords near the gob;friable roof;bow-shapedadvancing mining process;blasting coal face; 极近采空区;破碎顶板;“弓形”推进回采工艺;炮采工作面;
- blasting coal face 炮采工作面
- This old coal face is to be reworked next week. 这个旧的采煤工作面下周将重新开采。
- He has worked at the coal face for eight hours. 这矿工在工作面上已经干了八小时了。
- The blasting mining caving coal face,large indination and overhand mining technology is successfully applied in Chaohua Coal Mine of Zhengzhou Coal Industry Group Comp. 郑州煤业集团超化煤矿采用炮采放顶煤工作面大倾角仰采技术取得成功,解决了大倾角采煤工作面的支架失稳问题。
- At present the fully-mechanized blasting down coal face continues to use ordinary dustproof measure.In addition, some comprehensive dustproof measures must be adopted. 当前综采放顶煤工作面除沿用普通综采工作面采取的综合防尘措施外，还要采用一些综合的防尘措施。
- It is a main part of the aspirating system of the coal face. 设计的任务主要是对喷雾泵进行设计并进行必要的校核。
- The coal face of blasting mine in underground coal mine is a very complicated system of disaster environment, the spatio-temporal limit increases the accident probability of blasting operations. 煤矿井下炮采工作面是一个非常复杂的灾害环境系统,又由于时间、空间的限制,使得炮采工作面爆破作业引发事故的可能性增加。
- blasting coal caving face by blasting 炮采放顶煤
- drilling and blasting coal mining face 炮采工作面
- Cutting dust is the rootstock in coal face by analyzing the dust root in mine. 通过对煤矿尘源的分析可知,截割粉尘是采掘工作面粉尘的根源;
- Two models for output of mechanized coal face are constructed with Markovian theory. 利用马尔可夫理论,构造了两个机采工作面产量的模拟模型。
- Blasting test of top coal precracking in blasting coal Caving face 炮采放顶煤工作面顶煤预裂爆破试验
- Air leak seriously influences coal face supersedure at second air road of Dongyi mining area. 东一采区二段风道小井漏风严重影响了采煤工作面的接续,制约采区巷道维修。
- The main factors of influencing top corner gas on coal face in production was analysed by example. 通过实测,分析了实际生产中影响采煤工作面上隅角瓦斯的主要因素。
- This paper introduces the methods and measures of the adjustment of support tilt caused by ultrahigh mining in fully mechanized coal face. 本文介绍了综采工作面回采超高时倾斜歪倒支架调整的方法及措施。
- The accordion was in full blast in the hall. 在大厅里手风琴拉得非常响亮。
- The technology of super long coal face in three soft layers can be realized to excavate safely and effectively by the measurement in site. 通过现场实测表明三软煤层中布置超长工作面能够实现安全高效生产。
