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煤层采煤

煤层采煤

煤层采煤

煤层采煤

2

Mining Practice in Steep Coal Seam under "Grey Hat "

“灰帽 ”下急倾斜煤层采煤的实践

3

Selection and evaluation of the mining methods for the thick and extra-thick coal seams of the Carboniferous System in Datong mining area

大同煤田石炭系厚及特厚煤层采煤方法的选择与评价

4

Progress Technique for Large Scale Dispersion Water Bursting in Extra-thick Seams Working Face

巨厚煤层采煤工作面大面积分散出水治理技术

5

Selection and Evaluation for the Mining Methods of High and Extra-highSeam of Carboniferous Period in Datong Coal Field

大同煤田石炭系厚及特厚煤层采煤方法的选择

6

Double-unit coal mining technology for thin seam coal mining face with road retained for next sublevel

薄煤层采煤工作面沿空留巷对拉开采技术

7

Gas-prevention measures in coal face of single seam with low air permeability

低透气性单一煤层采煤工作面瓦斯防治措施

8

Comprehensive Control for Methane from Gassy and Thick -coal Seam Coal Mining Face

高瓦斯厚煤层采煤工作面的瓦斯综合治理

9

Test on mining method employed in steeply inclined coal seam at Xiahuayuan Coal Mine

急倾斜煤层采煤方法在下花园煤矿的试验

10

Thin seam coal shearer with electric magnetic speed control haulage

电磁调速电牵引薄煤层采煤机

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