• 不 限
  • 期刊论文
  • 硕博论文
  • 会议论文
  • 报 纸
  • 英文论文
  2. 您的位置
  3. 首页
  4. 期刊论文
  5. Back-and-forth mining for hard and thick coal seams-research about the mining technology for fully m

Back-and-forth mining for hard and thick coal seams-research about the mining technology for fully m

来源 :煤炭学报（英文版） | 被引量 : 0次 | 上传用户：WXY0216
【摘 要】
：
The article introduced the key technology, mining process, and back-and-forth mining method for the caving working face of hard-thick coal seams in Datcng mine, and researched this innovations process, optimized the systemic design and working face outpla
【作 者】
：
JIN Zhi-xin YU Hong YU Bin SONG Hua-ling 
【机 构】
：
Datong Coal Group, Datong 037300, China;Shandong Institute of Business and Technology, Yantai 264005
【出 处】
：
煤炭学报（英文版）
【发表日期】
：
2005年2期
【关键词】
：
hard and thick coal seams fully mechanized caving working face back-andforth min 
下载到本地 , 更方便阅读
下载此文 赞助VIP
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The article introduced the key technology, mining process, and back-and-forth mining method for the caving working face of hard-thick coal seams in Datcng mine, and researched this innovations process, optimized the systemic design and working face outplay, tried to perfect the caving mining technology of hard-thick coal seams further.
其他文献
Convergent mechanism of roadway driven along with strong roof of special thick stratum and its contr
The trapezoidal cross-section roadway, driven along with its medium and fine grain sandstone roof in special thick stratum, was situated in shale strata. Rock-lining wall was employed in roadway, which its roof is in the free situation. Under the action o
期刊
strong roofroadwayconvergencebroken zoneeffective load coefficient
Review of roadway control in soft surrounding rock under dynamic pressure
The basic characteristics of the soft rock roadway under the dynamic pressure are analyzed. At the same time, the three fundamental approaches for controlling the surrounding rock are proposed, which are improving the surrounding rock strength, lowering t
期刊
dynamic pressure roadwaystrata controlunderground pressure theory
Analysis of the effects of weak floor strata on longwall face stability using finite element modelin
Higher production, better safety standard, and potential for automation are some of the benefits of longwall mining. Today, longwall face advances at a faster rate exposing many diversified rock layers in a short period of time. It is now a serious challe
期刊
long wall faceweek floorfinite element in analysis
A criterion for crack initiation and propagation in intact rocks under creep condition
This paper presents a study on the criterion of crack initiation and propagation under creep conditions, which were investigated using specimens collected from outcropped sandstone rock formations. Beam specimens under three points bending were used in th
期刊
crackinitiation and propagationsandstonecreep
Safety appraisement on building natural gas pipeline over coal mining subsidence area
The target of the text is to scientifically appraise dynamic development of surface deformation in subsidence area and its influence on groundwork stability of natural pipe and then adopt some technological measures to ensure safe circulation of natural p
期刊
coal mining subsidence areanatural gas pipelinesurface deformation safety appr
Mating model on production capacity for the system of cutting coal and drawing top-coal in FMMSC
Being a safe and highly-efficient mining method, fully mechanized mining with sublevel caving (FMMSC) was extensively employed in Chinese coal mines with thick seam. In order to make drawing top-coal furthest to parallel work with shearer cutting coal,dec
期刊
coal minecoal facefully mechanized mining with sublevel caving (FMMSC)system
Open Cut resource Optimisation as applied to coal
Pit optimisation is the earliest and most established application of its kind in the minerals industry,but this has been primarily driven by metal,not coal.Coal has the same financiaI drivers for resource optimisation as does the metalliferous industry,ye
期刊
mixed integer programming.coal reserve optimisation
Numerical simulation of influence of shear dilatancy on deformation characteristics of shear band-el
The paper was numerically focused on investigation of deformation, failure and instability of shear band-surrounding elastic rock system in plane strain direct shear test considering shear dilatancy according to fast lagrangian analysis of continua (FLAC)
期刊
rock burstshear dilatancyshear band-elastic rock body systemFLAC
Numerical simulation for rheological characteristics of alternating distribution of soft and hard ro
The difficulty of selecting appropriate rheological model and parameters for the alternating distribution of soft and hard rock layers was often encountered due to the unhomogeneity, discontinuity and anisotropy of rock mass. The Burgers and generalized K
期刊
alternating distribution of soft and hard layersrheologynumerical simulation
HIGH-RESOLUTION SEQUENCE DIVISION AND TRANSGRESSIVE EVENTS COAL FORMATION IN SOUTHEASTERN NORTH CHIN
The sea level changes in the Paleozoic epicontinental basin were of high frequency and the transgressive events were episodic.This kind of sea level changes controlled both the basin filling and the coal accumulation within the basin.Coal accumulation in
期刊
epicontinental basinPermo-carboniferoushigh-resolution sequencescoal formatio