论文部分内容阅读
连体铰接顶梁是在十字铰接顶梁的基础上改进出来的,经过在鹤壁六矿几个月的使用取得了较好的技术经济效果,并通过了部级鉴定。 原十字顶梁由0.6m的铰接顶梁十字焊接而成,在使用中存在以下缺点:
Siamese articulated roof beam is improved on the basis of the cross articulated roof beam. After several months’ use at Hebi Sixth Mine, the technical and economic effects have been achieved and passed the ministry level appraisal. The original cross-top beam by 0.6m articulated overhead beam welded together, there are the following disadvantages in use: