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- Keywords Longwall working face;nomograph;determining factors; 长壁工作面;诺模图;参数确定;
- Triangular coal contracted face back mining technology in unequal longwall working face 不等长综放工作面三角煤缩面回采技术
- Keywords longwall face;axial fan;centrifugal fan; 长壁工作面;轴流式风机;离心式风机;
- This enabled them to run transport cars right up to the work face. 这使他们能把运煤车一直开到工作面。
- Stripper face must extend 1/8” below working face of punch. 脱料板下表面至少比冲子工作面高出1/8”。
- All coal was moved from the work face by electrically-driven conveyors. 所有的煤都用电动传送带从工作面运出来。
- Overlying strata spatial structures of longwall formed by working faces that is mined and four sides are substance coal are named "O" letter type spatial structures. 我们把一面采空(四周为实体煤)形成的采场覆岩空间结构称为“O”型空间结构。
- Keywords longwall top coal caving;working resistance;numerical simulation; 综放开采;支架工作阻力;数值模拟;
- Its range had the larger outstand to outboard working face under the condition of injecting grouts in separate layers. 离层带注浆时的覆岩破坏形态和范围向工作面外侧突出较大。
- Accumulated water of 12206 working face having been dug completely is menacing mining of 12208 working face. 12206工作面采空区积水对12208工作面的采掘生产构成一定威胁。
- The experience of water danger reclamation in synclinal axis illustrating at T312 working face is introduced. 介绍了T312工作面向斜轴部水患治理的经验。
- Keywords longwall face;microseismic;spatial fracturing structure;mining pressure field; 关键词长壁工作面;微地震;空间破裂结构;采动应力场;
- The join way of scraper coveyor cable pan using in mechanize working face is designed into fixtureless join way. 将机械化采煤工作面刮板输送机电缆槽之间的联接,设计成无紧固件的联接方式。
- The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine,Xinwen Mining Group. 新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
- Introduce a pressure characteristic of working face with the usage of hydraulic breaking-off prop. 介绍切顶支柱使用情况下的工作面矿压特性,分析切顶支柱对顶板管理的作用。
- Keywords longwall top coal caving;basic study;strata control;safety technology; 长壁放顶煤;基础理论研究;岩层控制;安全技术;
- Scraper conveyor is the main conveying equipment in coal mine,has important affect to whole working face. 刮板输送机是煤矿生产的重要运输设备,对于整个工作面的安全生产起着至关重要的作用。
- Keywords longwall top call mining;the developing entry;pillar;stability; 综放开采;采准巷道;煤柱;稳定性;
- Generally, the gas effuse amonnt in dig working face in mine relates to the gas fountain quantity. 淮北矿业集团公司石台煤矿对3422掘进工作面采取了瓦斯综合治理措施,达到了预想的效果。
