unworkable seam

The geology survey of Hegang coal field are introduced and some obvious characters of workable seam are compared.

介绍了鹤岗煤田的地质概况 ,并对主要可采煤层的一些比较明显的特征进行了对比。

Thus,CO2 can be sequestrated in the deep unminable coal seams which enhance coalbed methane(ECBM) production of the deep unminable coal sea.

由于煤介质具有特殊的双重孔隙结构、吸附性强等物性特征,对CO2具有很强的吸附能力,且大于煤介质吸附CH4的能力,因此,可将CO2注入深部不可开采煤层储存,在长久处置CO2的同时亦可促进深部煤层气的开采。

According to the biggest height of the risking zone and the transmitting fissure zone,the disastrous areas while exploiting the minable coal-beds below in the coming years are predicted.

本文依据井田范围内采空积水调查资料,探讨了采空积水的贮存分布规律,并采用冒落带及导水裂隙带最大高度的计算方法,预测了未来开采下伏可采煤层造成的漏水灾害区。

By combining the domestic and international actuality on very thin coal seam mining,the influence factors on the seam mining are analyzed step by step,the decisive factors which affect comprehensive evaluation result are sorted and selected,the technique guide line for the uneconomically minable coal seam is defined and the industrial index of the very thin coal seam exploitation.

研究了煤层赋存的地质特征与极薄煤层的开采工艺,结合国内、外极薄煤层的开采现状,对影响煤层开采的主要因素逐类进行分析,筛选出影响综合评价的主导因素,界定了非经济可采煤层的技术指标,对七台河地区极薄煤层开采的工业指标提出了建议,可为政府在矿产资源管理与制定相关政策方面提供参考性意见。

Geological Characteristics and Gas-bearing Properties of Mineable Coal Seams in Wulunshan Mine Area

五轮山矿区可采煤层地质特征及含气性

The coal characteristics analysis of main coal seam of Mayidongyi mine field in Pan county Guizhou Province

贵州盘县马依东一井田主要可采煤层煤质特征分析

Mining Technical Features and Reliability Analysis of the Contiguous Seam;

极近距煤层采煤工艺特点及可靠性分析

Plowability of plow mining on thin and soft coal seam with hard roof

坚硬顶板松软薄煤层刨煤机开采可刨性研究

The Feasibility Study of Lean Coal Seam Comprehensive Mechanized in Guan Yin Shan Mine

观音山煤矿大倾角煤层综采可行性研究

Feasibility on the upward mining of the left-over coal above goaf with pillar supporting method

刀柱采空区上方遗弃煤层上行开采可行性判定

A study on the feasibility of high seam mining in #3 thick coal seam of Wangzhuang Coal Mine

王庄煤业3~#厚煤层大采高开采可行性探索与研究

No.7 Coal Seam Workability Analysis and Mining Prospect Forecast on Banluoshan Coal Mine

半罗山煤矿7号煤层可采性分析及开采前景预测

Sampling of coal in seam

GB482-1995煤层煤样采取方法

Crawley midget miner

克劳雷薄煤层采煤机

Analyses on the Distribution and Recoverable Reserves of 36th Coal Bed in Xinghua Coal Mine;

杏花矿36号层在西一采区储量分布赋存状态及煤层的可采性分析

a stratum of ore or coal thick enough to be mined with profit.

含有厚到可以开采并获利的矿石或煤的地层。

Discussion on Exploitable CBM Resources Calculation Et Cetera

煤层气可采资源量计算有关问题的探讨

The feasibility study of longwall with top-caving mining in 3~# coal seam on Wangpo mine field

王坡井田3号煤层综放开采可行性研究

Study of Three-Dimension Stratum Visuallization for the Colliery Area;

煤矿开采区域的三维地层可视化的研究

10~# Coal Bed Developmental Mechanism and Workability Research in Tongchuan Mining Area;

铜川矿区10~#煤层发育规律及可采性研究

Analysis on the system reliability of fully mechanized longwall mining face in pitched seam

大倾角煤层长壁综采工作面系统可靠性分析

An analysis of the production potentials of CBM in Shuangquan mine area of Anyang Coalfield

安阳矿区双全井田煤层气可采潜力分析