黄泥-碎石泵送胶结充填料性能研究及应用

摘要

Clay-rock cemented and pumped filling materials are stirred to mix well, with broken rock in the mine fnr aggregate, yellow-clay for bonding material, concrete for cementing material and a certain amount of water. Base on laboratory experiments and in-situ pumping in the underground for seven kinds of proportion, mechanical and pumping property were analysed in this paper. Study indicates that,this fills have the advantages such as high pumping mortar density,fast initial set,high strength,well pumpability,lilue frayed pipe. Better effect had been obtained.%以破碎的井下废石为充填骨料,黄泥为黏结材料,水泥为胶结材料,并加入一定量的水搅拌均匀制成黄泥-碎石泵送胶结充填料,通过7种配比的室内试验和井下现场泵送充填配送试验,研究其力学性能和泵送性能.研究表明该充填料具有泵送浓度高、初凝快、强度大、可泵性好、对管道磨损小等优点.取得了较好的应用效果.