Mechanized Matched Rapid Construction of Large Diameter Mine Full Depth Freezing Shaft
LIU Yan-jie
ZHANG Gui-min
FAN Ju-chao
CAO Zhong-chang
Abstract：A net diameter of a mine auxiliary shaft in Gaojiabu Mine was 8.5m.The mine auxiliary shaft was sunk with a full depth freezing method ,the freezing depth of the auxiliary shaft was 850m ,the sinking depth of the mine shaft was 841.5m and the mine shaft liner was a double reinforced concrete shaft liner.A mechanized operation line of the mine shaft rapid construction was consisted with a Ⅵtype shaft sinking headframe ,large hoist ,large kibbles ,large formworks ,hydraulic umbrella drilling rig ,central rotating type hydraulic grabs ,bottom hook type automatic refuse tipping device ,dump trucks and other advanced equipments.A short sectional excavation and lining combined operation was applied to the mine shaft sinking with medium and deep borehole blasting ,floor cleaning with small type excavator ,concrete transportation with large diameter material transportation pipeline and other advanced technology.A month shaft completed within a continuous five month of shaft excavation and outer shaft lining was over 100m obtained ,an average month shaft completed was 120m and the expe-riences would be provided to the safety and rapid construction of the mine full depth freezing shaft.
Keywords：mine shaftfull depth freezingmechanized matchedrapid constructionⅥ type mine shaft sinking headframe
Publication Date：2014-02-22
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 21-26 )