A systematical study is made of the stability of backfill in blasting.
对爆破动载下充填体稳定性进行了系统研究。
The results indicate that elastic modulus, the angle of internal friction, and cohesive stress of the backfill are main factors affecting the stability of the slope.
结果表明，土体的弹性模量、内摩擦角与粘聚力是影响边坡位移的重要因素。
The mechanical researches showed that reducing length or increasing width of stope were propitious to improve stability of backfill and to lower filling cost.
高阶段充填体力学研究表明：缩短采场长度和增大采场宽度有利于充填体稳定性和降低充填成本。
Since the cemented backfill body is to be the top tray, so the research of cemented stability should be the key point of mining production technology.
由于胶结充填体作为采场顶板，故胶结体的稳定性研究是矿山生产技术的一项关键工作。
Since the cemented backfill body is to be the top tray, so the research of cemented stability should be the key point of mining production technology.
由于胶结充填体作为采场顶板，故胶结体的稳定性研究是矿山生产技术的一项关键工作。
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