1.
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
2.
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
3.
Research on Bolt-net-tight Wire Support of Gateway with High Geo-stress Sort Coal Seam;
高应力松软煤层回采巷道锚网索支护研究
4.
Reserving space for lane along the tunnel under the condition of soft coal bed,compound roof supports and protections;
松软煤层复合顶板联合支护 沿空留巷探讨
5.
Study on the Increasing of Recovery Ration of Fearfully Soft Coal in Longwall with Top-coal Caving Mining
极松软煤层综放工作面提高回收率技术研究
6.
Study on fastly extincting burst technique when tunneling in soft coal seam
松软煤层巷道掘进快速消突技术应用研究
7.
Study on Strata-pressure Behavior in Blasting Face of Soft Seams with Large Inclined Angle
大倾角松软煤层炮采工作面矿压显现规律研究
8.
Improving the penetrability of soft coal seam with self-excited oscillation water jet
自激振荡射流改善松软煤层渗透率的机理
9.
Study on Mechanized Top-caving Extraction and Gas Preventing Technique in Nantun Deep Uphill Soft Seam;
南屯煤矿深部仰斜松软煤层综放开采瓦斯防治技术研究
10.
Study on the Technique of Forecasting and Controlling for Loose and Weak Coal Seam of Spontaneous in the No9 Field of Nantun;
南屯煤矿九采区松软煤层综放面自燃火灾预测及防治技术
11.
Practice Study on Ventilation Technology of the Long Distance Digging Coal Laneway with High Consistency Gas in Soft Seams and Complicated Geological Conditions;
复杂地质构造松软煤层高瓦斯长巷掘进通风技术实践研究
12.
Research on Air Supply Parameter and Design on Dust Collector for Moderate Pressure Air Drilling in Soft Coal Bed
松软煤层中风压空气钻进供风参数研究及除尘装置研制
13.
Practice of Shortening Full-mechanized Caving Mining Face with Cracked Roof in Soft and Easy Self-ignition Coal Seam
易燃松软煤层及破碎顶板综放面缩面倒系统实践
14.
Study on Gas Release Regulation and Prevention Technology for Deep Soft Seam on Up-DIP Mining with Fully Mechanized Caving Face in Nantun Mine;
南屯煤矿深部仰斜松软煤层综放开采的瓦斯涌出规律与防治技术研究
15.
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
16.
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
17.
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
18.
Study on Roof Control Technology of Expecial Incompact "Three-soft" Coal Seam Working Face;
极松散“三软”煤层采场顶板控制技术研究