The equipment is mainly used for the shaping work of U-shaped steel arch support when it deforms, distorts or partial damages, to increase the number of profiles in the re-use.
该设备主要用于U型钢拱形支架使用后发生变形、扭曲或局部破损的整形工作，以增加型材的复用次数。
From the above analysis, it is shown that under the condition of steel arch support, the support effect of systematic rock bolts in loess tunnel is not obvious, which can be ignored.
综合以上分析表明，在黄土隧道中，钢架支护条件下的系统锚杆支护效果不明显，可以取消。
Steel shank for increased support under the arch and extra stability.
钢柄支持下的弓和额外的稳定性增加。
The steel pipe arch was manufactured in 13 segments vertically, erected by cable crane without support and clasped by diagonal tension steel strand.
主拱为桁架式双拱肋，钢管拱纵向分13段制造，采用无支架缆索吊机安装、钢绞线斜拉扣挂施工。
The arch rib have been fabricated longitudinal by 7 segments, and used the non-support cable crane installation and the steel cable diagonal-tension method.
拱肋纵向分7段预制，采用无支架缆索吊机安装、钢丝绳斜拉扣挂法施工。
For rock roadway layout layer, the necessity and feasibility of using nude alley, a hell of arch, the U-steel shed, bolt net and spraying and other forms of support are expounded.
针对岩巷布置层位，阐述了采用裸巷、砌碹、u型钢棚、锚网喷等多种支护形式并存的必要性与可行性。
For rock roadway layout layer, the necessity and feasibility of using nude alley, a hell of arch, the U-steel shed, bolt net and spraying and other forms of support are expounded.
针对岩巷布置层位，阐述了采用裸巷、砌碹、u型钢棚、锚网喷等多种支护形式并存的必要性与可行性。
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