Construction Technology of Mine Inclined Shaft above Mine Goaf
HU Zhi-yun
Abstract：A mine auxiliary inclined shaft of Changzhi Xianquan Anthracite Mining Company Limited , Jincheng Anthracite Mining Group had a net cross section area of 17.75m2 ,an inclination of 6° ,an in-clined length of 2 985.2m and a section from 130~500m above a goaf of No.3 seam.A thickness of the goaf was 5.35~6.42m ,an average thickness was 5.5m and a mining depth and mining thickness ratio was 12.2~23.1.According to the goaf condition ,before the construction of the mine inclined shaft ,a cement and fly ash grout was applied to a grouting treatment at the surface ground conducted in the goaf in order to ensure the safety construction and safety application of the mine inclined shaft.Then a mine inclined shaft was safely and successfully passed through the section above the goaf with the heading of the mine mechanized roadheader and with expected effects.
Keywords：goafconstruction of mine inclined shaftgrouting at surface groundmechanized operation
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：4( 6-9 )