Grouting Treatment of Freezing Window in Gravel Bed of Yili No. 1 Mine Shaft
GAO Gang-rong
Abstract：A mine auxiliary shaft of Yili No.1 Mine was constructed with a ground freezing method ,the freezing depth was 430m ,a depth of the alluvium was 159.05m and a gravel bed was a main stra‐tum.When the mine shaft was excavated at a depth of 89.6m ,there was abnormal mine water inflow occurred in the mine shaft sinking face. The cause was that the underground water flow velocity was high and there was a window occurred in the freezing wall. With a study ,a longitudinal temperature measuring technology with a freezing borehole was applied to accurately adjudge the location of the freezing window. Then a clay and cement grouting technology at the sinking face was applied to reduce the water flow velocity and make the window closed.After the plan conducted ,an estimated effect was obtained and the mine shaft successfully passed through the stratum.
Keywords：gravel bedfreezing windowunderground water flow velocitylongitudinal temperature measuringgrouting at working face
Publication Date：2014-09-18
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 4-7 )