Study on reproducing roof strata and the equipment forming a complete set of thick coal seam slicing;
厚煤层分层开采再生顶板和设备配套问题研究
Experimental investigation of floor rock permeability through injecting water in the slicing process;
分层开采底板岩体渗透性变化的试验研究
In situ measurement of floor strata displacements in slice mining;
分层开采底板岩层移动的现场观测研究
The results of the study are of value also to slice mining in extra thick coal seams under similar conditions.
综合运用理论计算及计算机数值模拟的方法,从上、下分层煤柱宽度确定,分层巷道布置方案,设备撤出巷布置方案和下分层开采方法等方面对特厚煤层分层开采技术进行了研究。
Technical and Economical Effect on Phased mining of Open-pit;
露天矿分期开采的技术经济效果
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
A Research in Drift Layout of Mechanized Coal Face Panels in Gentle Dip,selfcombustible Thick Seams by Slice Mining
缓倾斜易自燃厚煤层分层开采综采采区巷道布置的探讨
Study on the Failure of Overlying Rock in Mining Shallow Thick Coal Seam by Slicing Method;
浅埋厚煤层分层开采覆岩破坏规律研究
Article 43 In exploiting ground water from multiple aquifers, layered exploitation shall be resorted to if the water quality differs greatly from one aquifer to another.
第四十三条 在开采多层地下水的时候，如果各含水层的水质差异大，应当分层开采；
Application of Slice and Room-and-Pillar Mining with Overcut in Mofang Mine
分层开采的切顶房柱法在磨坊矿的应用
flat back cut and fill method
水平分层充填开采法
overhand cut and fill
上行分层采掘充填开采法
Analysis on the damage zone of overlying strata and safety layer distance on the upward mining above the longwall goaf
长壁开采上覆岩层损伤范围及上行开采的层间距分析
Close-up coal mining stope support pressure distribution study
近距离煤层群开采采场支承压力分布规律研究
Analysis on the influence of laicheng's slope structure to coal seam mining
莱城向斜构造对煤层开采的影响分析
Countermeasures for Safe Mining on Periphery Fire Zone of Second Layer Fully Mechanized Working Interface of Gas Intense Thick Coal Seam
高瓦斯厚煤层二分层综采工作面外围火区下安全开采的对策
Application of Room and Pillar Mining Method in Under-sea Deposit
分矿房矿柱分层充填法在海底开采中的应用
Analysis of instability characteristics of surrounding rock within horizontal section caving face in steep coal seam
急斜煤层水平分段综放开采围岩失稳特征分析
Like most treasure, guano demanded a high price for its extraction.
一如大部分珍贵资源，开采鸟粪层代价很高。
The Application of the Delaminating All-sided Stoping in Exploitation of Gentle Dip Rich Ore-body
分层全面法在开采缓倾斜富矿体中的应用
Numerical Analysis on Combining Mining of Steep and Close Seam in Jiangou Coal Mine;
碱沟煤矿急斜近距煤层联合开采的数值分析
Analysis on Roof Structure s Stability of Longwall Mining in Shallow Seam;
浅埋煤层长壁开采顶板结构稳定性分析
Tracking Research of Multi-branch Horizontal Well Technology at FanZhuang Coalbed Methane Region
樊庄煤层气多分支水平井开采技术跟踪研究