论文部分内容阅读
基德克里克矿业公司的废石胶结充填量约为1万t／d。所用废石胶结充填料由不同级配的分级集料和不同配比的胶结剂混制而成。技术特性经严格控制的废石胶结充填料可用于矿柱的后继回采，并可改善岩层的被动-主动支护．在胶结剂用量相同的条件下，废石胶结充填体比标准的水砂胶结充填体的抗压强度、弹性模量、粘聚力和摩擦角要大许多．基德克里克公司设计的废石胶结充填料不仅要承受上部充填体的重力负荷，而且也要在一定程度上承受相邻采场和／或矿柱爆破时的动力负荷。基德克里克矿业公司的充填系统可在以下三个阶段控制所用材料的质量，即：1．充填料地表制备站制备；2充填料输送；3．充填料充放阶段。本文着重论述了基德克里克矿业公司各矿单一采场的充填设计和在矿柱回采中最终可能有4个帮壁都暴露出来的大型空场法采场控制充填质量的措施。
The waste rock cemented fill at Kidd Creek Mines is about 10,000 t / d. The used waste cemented filling material is composed of graded aggregates of different grading and different proportions of cement. Technical Features The tightly controlled waste rock cemented filling material can be used for the subsequent mining of pillar and the passive-active support of the rock formation can be improved. In the same amount of cementing agent, the compression ratio, the elastic modulus, the cohesion and the friction angle of the waste rock cemented filling body are much larger than that of the standard water sand cemented filling body. Kidd Creek’s waste rock cements are not only loaded with the gravity load of the upper backfill but also to a certain extent withstand the dynamic loads associated with the blasting of adjacent stopes and / or pillars. The Kidd Creek Milling Systems filling system controls the quality of the materials used in three phases: 1. Preparation of filling material preparation site; 2 filling material delivery; Charge filling and discharging stage. This article focuses on the design of the fill-in design for the individual stopes in various mines at Kidd Creek Mines and the possible control of filling quality by a large open-field stope in the mine pillar that may eventually have been exposed by four walls.