Study on High Strength and High Performance Steel Fiber Concrete Applied to Lining Construction of Mine Freezing Shaft in Longgu Mine
WANG Qian
ZHU Feng
LU Tongwei
Abstract：A Mine North Ventilation Shaft of Longgu Mine had a depth of 746m ,an alluvium thickness 675m and an freezing depth of 730m?A site poured reinforced concrete complex liner was applied at the refreezing section of the mine shaft?After a depth of the mine shaft over 580m ,a CF80 high strength and high performance steel fiber concrete site poured was applied to the outer liner and the inner liner of the shaft? According to the engineering features ,the CF80 high strength and high performance steel fiber concrete was prepared with local raw materials and special high efficient mineral blended materi al? The lab simulation and site experiment study showed that the CF80 concrete could fully meet the lining construction requirements of the mine freezing shaft in a deep and thick alluvium.
Keywords：mine freezing shaftdeep and thick alluviumsteel fiber concretehigh performance concrete
Publication Date：2014-07-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-45 )