Surface Ground Pre-Grouting Technology of Mine Shaft in Fucheng Mine
SHAO Chen-xia
Abstract：A surface ground pre-grouting technology as a conventional construction method of the mine shaft passing through an aquifer in a base rock was not applied to Shanghaimiao Mining Area yet. In order to guide the grouting construction of the mine shaft in the mining area ,a mine air retuning venti-lation shaft at the south wing of Fucheng Mine was selected as a mine trial shaft ,an experiment study was conducted on the design parameters and the construction method of the surface ground pre-grou-ting and the estimated effect was obtained. The average grout injection volume of the whole mine shaft was 51.6 m3/m and the residual water inflow volume at the grouting section of the mine shaft was 2.7 m3/h measured from the water pressure test. When the mine shaft was excavated and lined at the bot-tom of the mine shaft ,the residual water inflow volume measured at the grouting section was less than 6 m3/h and could meet the construction requirements.
Keywords：mine shaftsurface ground pre-groutingclay-cement groutShanghaimiao Mining Area
Publication Date：2015-08-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 9-12 )