1)top coal caving放顶煤
1.The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.研究表明:放顶煤开采、提高支架工作阻力可以减缓煤壁压力,煤体合理注水可以提高煤体黏聚力与抗剪强度,它们是防治极软煤层煤壁片帮的有效措施。
2.5m thick and 21°～42° high inclination-angle,is mined with light top coal caving.5m,煤岩层倾角21°~42°,属于大倾角煤层,采用轻型放顶煤技术开采。
3.Having taken high inclined angle 31502 working face fully mechanized top coal caving in Zhang Ji Mine of Kangbao Mining Company as object of study,this paper analyzes the complicated situation the 31502 fully mechanized top coal caving face will face,having taken specific measures and management methods to guarantee mining safely,providing methods for future mining and accumulating experience.以康保矿业公司张纪井31502工作面大倾角综采放顶煤为研究对象,分析了31502综采放顶煤工作面面临的复杂情况,采取了针对性措施及管理办法,保证了安全推采,为今后的采煤方法探明了路子、积累了经验。
英文短句/例句
1.Top Coal Crushing Mechanism and Determination of Roof Caving Height in Roof Caving Workface放顶煤工作面顶煤破碎机理及放煤高度的确定
2.Study on Top Coal Caving of Horizontal Section Top Caving in Steep Seam;急倾斜水平分段放顶煤顶煤放出规律研究
3.The Three-dimensional Visualization Simulation of Top-coal Movement Regulation on the Base of OpenGL;基于OpenGL放顶煤顶煤运动规律的三维可视化仿真
4.Study on Gateway Top Caving Technology for Steep-inclined Coal Seam急倾斜煤层巷道放顶煤回采工艺研究
5.Research on the Top Coal Caving and Drawing Characteristics of Caving Roof Coal Mining for Shallawly Buries and Hard-Thick Coal Seam;浅埋藏坚硬特厚煤层放顶煤开采顶煤冒放性研究
6.The Influence of Seam Occurrence on Fully Mechanized Top Coal Caving煤层赋存状态对综采放顶煤采煤法的影响
7.Study on Distribution Regularity of Coal-body Gas Pressure near Coal Draw-point in Early Stage of Caving Mining放顶煤开采初期放煤口附近煤体瓦斯压力分布规律研究
8.Practice on Mining Method Changing from Top Coal Caving Mining to Top Slice Mining工作面由放顶煤开采改为顶分层开采的实践
9.Application of low caving coal hydraulic support in thick coal seam with large tilt angle低位放顶煤液压支架在大倾角厚煤层中的应用
10.Study on Technology of Top-coal Caving Mining of Lane Pillar in 3.5～10m Steeply Inclined Coal Seam;3.5～10m急倾斜煤层巷柱式放顶煤开采技术研究
11.Coal-Rock Compound Mechanical Models and its Control in the Top-Coal Caving Faces;放顶煤工作面煤岩组合力学模型及其控制
12.The Practice and Understand of Exploitation of Integrated Excavated Top Coal;谢桥煤矿综采放顶煤开采的实践与认识
13.Selection of Hydraulic Powered Top Coal Caving Support and Three Equipment Matching Applied to Deep Inclined Seam with Soft Roof,Soft Coal and Soft Floor大倾角三软煤层放顶煤支架选型及三机配套
14.Study on Laws of Rock Pressure Appearance at Blasting Caving Coal Face in Hezhuang Coal Mine何庄煤矿炮采放顶煤工作面矿压显现规律研究
15.Discussion on Key Technology of Upward Mining for Top Coal Caving Mining in Jining No.3 Coal Mine济宁三号煤矿放顶煤上行开采关键技术探讨
16.Combin gateway and pillar with fully mechanized top cawing mining technology in steep inclined special thick seam急倾斜较薄特厚煤层巷柱-综采放顶煤开采技术
17.Selection of Reasonable Section Heights During Top-coal Caving to Steep Seams急斜煤层分段放顶煤开采合理段高选择研究
18.Research and Application of Upward Top Coal Caving Mining Technology in Thick Seam厚煤层上行开采放顶煤技术研究与应用
相关短句/例句
caving coal放顶煤
1.The application of waterinjection soften process of π type steel caving coal;π型钢放顶煤煤体的水软化工艺技术的应用
2.Computer simulation research on working results of fully mechanized caving coal face;综采放顶煤工作面生产效果计算机模拟研究
3.Practice on the technology of large tilt angle compound mining caving coal;大倾角综采放顶煤技术的开采实践
3)top-coal caving放顶煤
1.Discussion on support and design of the powered support for the top-coal caving of up-dip mining face;放顶煤仰采工作面液压支架支护与设计探讨
2.A study on top-coal caving technology in thick seams with fully mechanized face;厚煤层综采放顶煤工艺研究初探
4)Caving[英]['ke?v??][美]['kev??]放顶煤
1.Analysis on technological transformation from flooring support to caving support;铺网支架改放顶煤支架技术浅析
2.The case of accidents,the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures,must learn.该文通过事故案例分析,提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施,有一定借鉴意义。
3.ZF—4600 light caving supporter was tested successfuly in thick seem descending slicing face,whick supplied a new choice for the mining in similar face.在厚煤层下分层回采工作面 ,使用ZF— 4 6 0 0轻型放顶煤支架及其配套设备 ,井下现场试验成功 ,为同类型工作面的设备选型和采煤方法提供了新的选择。
5)sublevel caving放顶煤
1.Scientific analysis on sublevel caving in thinner of the steep close and thick seam;较薄急斜近距厚煤层水平分段放顶煤科学性分析
2.The numerical analysis on the stress distribution and the displacement of the top coal in sublevel caving mining;放顶煤开采顶煤移动与破坏规律的数值分析
3.App. of sublevel caving method with single hydraulic support;单体液压支架放顶煤开采方法的应用
6)sub-level caving method放顶煤采煤
延伸阅读
综采放顶煤 综采放顶煤：厚煤层煤炭开采技术之一。把原来分层开采的煤炭，一次采完。方法是，在煤层底部按传统方法开采，使上面的煤炭在矿压的作用下，自动落下来。
