针对查干银矿 1# 矿体所采用的下向分层碎石胶结充填法 ,进行充填材料配比试验及成本优化试验研究 ,得出了满足查干银矿井下胶结充填安全生产条件和达到最佳充填直接成本的充填材料最优配比 :a .首采分层为水∶水泥∶河砂∶碎石 =0 .8∶1∶3 .2∶9.6;b .首层以下为水∶水泥∶河砂 :碎石 =0 .8∶1∶4.8∶14.4。 In view of the downward stratified gravel cementation filling method adopted by No. 1 ore body of Chagan Silver Mine, the proportioning test and cost optimization test of filling material were carried out, and the safety production conditions of cementation filling under Chagan Silver Mine were met and reached The best filling direct cost filling material optimal ratio: a. The first mining stratification for the water: cement: river sand: gravel = 0. 8: 1: 3. 2: 9.6; b. Below the first floor of water: Cement: River Sand: Crushed Stone = 0 .8: 1: 4.8: 14.4.