速凝水泥膏浆灌浆技术在水电站土石围堰防渗体工程中的应用

Quick-setting cement plaster grouting technique applied in anti-seepage of earth-rock weir

速凝水泥膏浆灌浆技术首次在水电工程土石围堰防渗中的应用,解决了在河床大孤石及特大块石架空的情况下,由于渗漏量大、流速快,造成普通浆液流失,高喷水泥浆液、化学浆液及砂浆、碎石等材料灌注效果不佳的问题,并达到了预期堵漏防渗效果。

The quick setting cement plaster technique is firstly used in the anti-seepage of earth-rock weir in hydropower projects under superterestial large boulders and extra-large block stones on riverbed. It has solved problems resulting from loss of common grout, jet grouting, cement grout and chemical grout as well as material injection such as mortar, crushed stone because of large amount of seepage and fast speed, and has achieved expected effect of water leakage and seepage control.