steel arch support

基本解释

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。
Simple use of sprayed concrete anchor mesh steel arch support, the roof pressure can easily cause distortion of steel arch, spray body cracking off the roof down, Portal deformation.
纯真地采用锚网钢拱架放射混凝土支护，在顶板来压时，易发生钢拱架扭曲变形，喷体开裂零落，顶板下沉，洞门变形。
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。