Pipe lodgepole-steel tunnel support technique is a strong composite support system consisting of advance pipe lodgepole, support stell vault, tin plate packer and working surface plug-back.
管棚复合钢支撑技术，是一个通过超前管棚、支撑钢拱、白铁皮隔离、工作面封堵的相互配合和共同作用，形成了具有强大支护抗力的复合支护体系。
The application of composite steel tunnel support technique to tunnel collapse handle at the Zhenlong Hydropower Station, Shimian and its applicable conditions as well as perspective are set forth.
介绍了组合钢支撑技术在石棉镇龙电站隧洞塌方中的应用情况 ，同时探索出了该项技术的适用条件和推广前景。
So steel fiber reinforced shotcrete should be the first choice for tunnel support on the condition of tunnel crossing high ground stress and having rock-burst tendency.
因而认为钢纤维混凝土应成为高地应力条件下的有岩爆倾向的隧道支护首选。
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