Floating Installation Technology for Prefabricated Shaft Wall in Vertical Shaft of Mine Constructed by Mechanical Drilling

Abstract:

Based on the engineering of vertical shaft of Zunhua iron mine in Hebei, which was 5.6 m in diameter and 286 m in depth, the paper introduced technological principles of vertical shaft constructed by drilling method and prefabricated shaft wall installed by floating installation technology, together with measuring method for the adjacent two shaft walls connection, process control and vertical measuring technology of the shaft after its wall installation.

Key words:vertical shaft of mine; drilling method; shaft wall; floating installation