Comprehensive treatment technology of ventilation, dust -alleviation and purification was successfully applied in the mechanized construction of Lei Gongshan tunnel on Beijing-Jiulong Railway Line.
京九铁路雷公山隧道机械化施工中应用施工通风降尘净化综合治理技术获得成功。
In the light of analogue test in laboratory, the stability of roof of fully mechanized working face with top coal caving is studied during withdrawing support at stop line.
通过实验室相似模拟试验，对综放面收尾撤架空间的顶板稳定性进行了研究。
Mechanized working line for the construction of the bedding rock section, blast of the grain side, technology of coal exposure etc.
还介绍了基岩段施工时的机械化作业线，光面爆破，揭煤工艺等。
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