Abstract:
Mechanized construction line is the key factor to accelerate construction of vertical shaft. This paper introduces typical domestic construction techniques and mechanized matched production line of large-diameter kilometer vertical shaft construction. During frozen wellbore construction stage, The entreprise equipped with excavators, the center grab rotary, high-capacity upgrade of waste 4.0m
3 bucket, concrete hopper bucket and hydraulic decentralized sliding template, high-power winch and other large equipment, and used electric detonators and new technology to reduce blasting vibration; when arriving at bedrock site, additionally reservation of the center grab rotary machine in frozen stage, it increased the new umbrella drilling YGZ-70 heavy-duty rock drill, the effective height of 4.5m metal blade angle of down building templates, the controlled blasting detonators of water resistant, and anti-millisecond electromagnetic stray current technologies etc; At 1038m depth, the shaft changed the twist and used big winch of 4.0m diameter reel. Application shows that shaft mechanized production line meets the needs of ultra-1000 meters vertical shaft construction.