• 介绍国内外长综采工作面尺寸设备回采巷道布置工作面单产现状及发展趋势

    The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.

    youdao

  • 开采技术工作面巷道布置上采用普采混合,不规则刀形形状对拉工作面布置,回采工艺采用了旋转采等新技术。

    This mining technology combined the fully mechanized mining with orthodox working face, and it layoutted irregular form and double unit face, adopted the rotational adjustment mining.

    youdao

  • 3604S4工作面回采巷道顶板进行了研究得到了工作面下沉速度几种分维

    Study was conducted on the roof of No. 3604S4 coal face and the actual mining roadway with fractals, and a few kinds of functional values of subsidence velocity of this face were obtained.

    youdao

  • 河矿综采工作面巷道采用顺序开采回采方式。选用7200/23/38 A型式支架巷道进行超前支护,实践中提出了支护过程中存在的几点问题并提出了改进意见

    Sequential mining is utilized in the fully-mechanized face in Sihe mine. 7200/23/38A chock support is used in entry, some problems on its usage and related improvement opinions are put foreward.

    youdao

  • 同时,实施网索耦合支护深部回采巷道能够满足巷道掘进工作面回采期间稳定性控制要求

    The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.

    youdao

  • 同时,实施网索耦合支护深部回采巷道能够满足巷道掘进工作面回采期间稳定性控制要求

    The gateway with bolt-net-anchor coupling support can meet the requirements of the stability control during gateway excavation and coal extraction.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定