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Analysis on Grouting Technology for Controlling Deep Rock Cracks at Jinping Ⅰ Hydropower
详细信息   
摘要


    
    

This
    paper analyzes the features of deep rock cracks and grouting technology. It
    then studies the grouting technology with cement-silicate for controlling the
    deep rock cracks.It particularly addresses the problems of grouting in deep
    cracks in Jinping
Hydropower.
    First of all, the paper analyzes the mechanism of cement-silicate grouting.
    Then, it investigates the cement-silicate slurry mainly from the aspects of gel
    time and strength. It studies the influence law of gel time and strength from
    the dosage of silicate and retarder. It obtains a design formula for
    5min.cement-silicate slurry. Finally, the paper proposes the grouting method
    using two pipe outlets for mixing the two grout fluids. One pipe outlet is for
    the cement grout and the other for silicate grout.


    
    

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