Hyperstatic equal-strength support anchorage cable locking mechanism

• Main Authors: LAN TIAN, PAN YINGUANG, SUN KAI, MA ZHANGUO, YANG JIANLI, ZHU FAHAO, ZHANG FAN, ZHAO YUCHENG, ZHANG JINLIANG, LI SHUNCAI, LI QIANG, MA JIGANG, MIU XIEXING
• Format: Patent
• Language: Chinese; English
• Published: 25.11.2009
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

Disclosed is a hyperstatic equal-strength support anchorage cable locking mechanism, which consists of a tubular bowl with a dished bottom, a lock tube arranged in the tubular bowl to clamp the anchorage cables, and a spring arranged below the lock tube. The matching faces of the lock tube and the tubular bowl are conical faces and the lock tube consists of four conical blocks. The tubular bowl, the lock tube and the spring of the anchorage cable locking mechanism are sequentially sleeved on the anchorage cables which are fixed by a blending stick, and the anchorage cables compressed in the four conical blocks are separated and pulled in four different directions to be connected with the rest supported anchor rods or anchorage cables. When the anchorage cables in an area under high stress strain break under pull, since the lock tube in the tubular bowl tightly wedges the anchorage cables supported in the rock, the top plate is ensured not to fall off and collapse, thus greatly improving the support strength a