Let and press and early warning u type concrete steel pipe support

• Main Authors: LI PENG, LYU RONGSHAN, ZHOU YUAN, YU QIANQIAN, TIAN MAOLIN, KONG YINGCHUN
• Format: Patent
• Language: English
• Published: 28.10.2015
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The patent of the utility model relates to a let and press and early warning u type concrete steel pipe support. This supporting construction mainly includes the base structure of upper portion u type carbon fiber concrete steel pipe and lower part. Wherein the carbon fiber concrete steel pipe on up...