栗西尾矿库永久排洪洞注浆防渗研究

fter the completion of the drain tunnel of Suxi tailings reservoir.It used the traditional cement slurry backfill and there are significant improvements in leakage.However, as the cement slurry water content in large, easy to shrink, making the concrete cracks and construction joints have a small amount of leakage.At the same time, for the growth of the fractured segment joints it appeared some fissures or faults in different sizes,and it has a certain degree of pressure on leakage of water. In this article,just for the leakage of the fundamental governance need to raise the pressure of consolidation grouting leakage points.So that the pressure cementitious materials to infiltrate a certain depth of fissures or faults.Besides grouting material selection and matching for some improvements designed to achieve the intended purpose of seepage.