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Research on strata behavior law of fully mechanized longwall caving mining face in extra thick seam in Datong Mine Area;

大同矿区特厚煤层综放采场矿压显现规律研究

QUANTITATIVE ANALYSIS ON THE THICKNESS VARIATION OF NO 2 1 COAL SEAM IN CHAOHUA MINE FIELD

超化井田二1煤层厚度变化规律定量研究

Seam Thickness Change Effected on Production and Processing Methods in Xingan Coal Mine

兴安矿煤层厚度变化对生产的影响及处理方法

Analysis on Changeable Law and Influential Factors of Thickness of Ⅱ_1 Coal seam in Songshan Mine Field

嵩山井田二_1煤层厚度变化规律及其影响因素分析

The Study of Varied Thickness of Coal Seam Using MCNP Method in the Coal Quality Analysis Experiment by Neutron

中子煤质分析实验中应用蒙特卡罗模拟方法进行煤层厚度变化的研究

thick-layer apt to oxidation type characterized by large thickness of coal seam and low metamorphic degree, and transition type.

以煤层厚度大和低变质程度为特征的厚层氧化类型; 过渡类型.

Probe into Changing Reason of Coal Structural Thickness in Changfushan Minefield,Longyong Coalfield

龙永煤田昌福山井田煤层厚度结构变化原因分析

Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam

中厚煤层区段煤柱留设宽度理论确定

Study on Relation of Coal Bed Cutting Strength Variation and the Energy Cost of Shear;

煤层抗截强度变化规律与采煤机能耗关系研究

The Influence of In-situ Stress Gradient and Geothermal Temperature on The Calculation of Coalbed Gas Pressure

煤层温度和应力梯度变化对煤层瓦斯压力计算的影响

Determination of Critical Thickness of Stiff Roof in Coal Mine Based on Thick Plate Theory

基于厚板理论的水平煤层顶板临界厚度的分析

Reasonable Mining Height of Full-mechanized Caving Mining in Softly Inclined and Extra-thick Coal Seam

缓倾斜特厚煤层综放开采合理开采厚度的确定

Adapability Analysis of Dragline Mining System Under Conditions of Changing Stratum Thickness

岩层厚度变化下拉斗铲工艺适应性分析

Application of wave impedance inversion in coal seam thickness prediction

波阻抗反演在煤层厚度预测中的尝试

On the Deposition Factors Affecting the Seam Distribution,Seam Thickness and Coal Quality

浅议影响煤层分布和煤层厚度及煤质的沉积因素

mechanized heading development

机械化平巷开采中厚煤层法

Probe into Coalfield 3D Seismic Prospecting Time-depth Conversion in Variable Loess Thickness Areas

黄土厚度变化较大地区煤田三维地震勘探时深转换方法的探讨

Study on Technology of Hard and Thick Top-coal Weakening in Fully Mechanized Caving Faces in Binchang Mining District;

彬长坚硬厚煤层综放开采顶煤弱化技术研究

Application Research on Coal-body Solidifying Teachnology in Extra-thick Coal Seam Driving Face

煤体固化技术在特厚煤层掘进面的应用研究