1.
A research on highly efficient mining technology for use in extra long top coal caving logwall faces with big mining heights in soft,thick and gassy coal seams
高瓦斯松软厚煤层大采高超长综放工作面高产高效技术研究
2.
Deep-hole construction technology of gas drainage for single low-pervious and mellow thick coal seams with water
单一低透松软含水厚煤层瓦斯抽放深孔施工技术
3.
Study on Reasonable Width of Coal and Rock Pillar under Thick Aquiferous Loose Bed;
厚含水松散层下煤岩柱合理留设研究
4.
Comprehensive Technology of Uncovering Loose Coal Seam with Bursting Liability in Inclined Roadway of Hancheng Mining Area
韩城矿区突出松散厚煤层斜巷正揭煤综合技术
5.
"Three soft" in thick Coal Comprehensive mechanization mining stent selection of importance
“三软”中厚煤层综采支架选型的重要性
6.
Study the Laws about Steep Soft Coal Seam Coal and Gas Outburst;
急倾斜松软煤层煤与瓦斯突出规律研究
7.
Study on Technology of Soft Coal Seam Rib Spalling Preventing by Water Infusion with Shallow Holes
松软煤层煤壁浅孔注水防片帮技术研究
8.
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
9.
The Research of Reasonable Setting up Pillar Coal to Prevent Sand from Collapsing in the Moderate and Thick Unconsolidated Formation;
中厚松散层下防砂（塌）煤柱合理留设研究
10.
In-seam Deep Borehole Drilling Technique in Soft and Outburst Thin Seam
松软突出薄煤层本层深孔抽采瓦斯施工工艺
11.
Research of Drilling Equipment and Craft for Soft-extrude Coal Along Level Bed
松软突出煤层顺层钻孔装备及其工艺研究
12.
Research and Application on Synthesis Technology of Extinguishing and Preventing Fire in Mechanized Caving Face of Three-soft Coal Seam
“三软”易燃厚煤层自然火灾综合防治技术研究
13.
Gateway Support Modes and Parameter Optimization of Fully Mechanized Top Coal Caving Mining Face in Soft and Thick Seam
软厚煤层综放工作面巷道支护形式与参数优化
14.
Comprehensive Gas Drainage Technology of Fully Mechanized Mining Face in Seam with Soft Roof,Soft Coal and Soft Floor
三软厚煤层综采工作面瓦斯综合抽采技术
15.
Research and Application of Coal Seam Strip Mining Method with the Huge Thick Soil Layer under Buildings;
建筑群下特厚松散覆层煤层条带式开采方法的研究与应用
16.
Study on Key Technologies of Reasonable Mining in the Condition of Soft Coal, Thick-hard Roof and Contiguous Seams;
软煤、厚硬顶板、极近距离煤层合理开采关键技术研究
17.
Application of Fully Mechanized Mining Technology with Caving of Roof Coal in "Three Soft" Large Clined Angle Thick Coal Seam Mining
综采放顶煤技术在“三软”大倾角厚煤层开采中的应用
18.
Analogue Simulation Research on Roof Moving Rule of Two Soft and One Hard and Largely Inequality Depth Coal Seam in Yunmei No.1 Coal Mine
云煤一矿两软一硬大厚差煤层顶板活动规律研究