摘要
为了给充填系统总体规划及充填系统运行参数提供依据,在实验室进行全尾砂与分级尾砂充填体强度及沉降性能的对比分析研究。根据试验结果:在起始浓度(40%)下,分级尾砂的沉降性能要优于全尾砂充填体。增大灰砂比对于提升充填体强度的效果:全尾砂要优于分级尾砂,在养护初期时,分级尾砂优于全尾砂,而在养护后期,全尾砂充填体要明显强于分级尾砂。同时,3种因素对于提高充填体力学强度效果而言,养护龄期>灰砂比>浓度。
In order to supply gist for filling system, overall planning and filling system parameters, taking comparative analysis research of strength and settling performance about backfilling and hierarchical backfilling filling body in the lab. According to the experimental results： in the initial concentration （40%）, the settlement of backfilling backfilling filling body.Increasing the contrast materials classification performance is superior to all to enhance the effect of strength of filling body, all the backfilling is better than that of backfilling materials classification, at the beginning of the curing, backfilling materials classification is better than that of significantly stronger than hierarchical backfilling the backfilling, and in the late maintenance, all filling body. Meanwhile, three factors to improve effect of filling strength strength for curing age 〉 contrast 〉 concentration.
出处
《煤炭技术》
北大核心
2017年第6期101-104,共4页
Coal Technology
关键词
尾砂
抗压强度
沉降性能
倍数关系
backfilling
compressive strength
sedimentation performance
muhiple relation
