摘要
通过基于双屈服模型的数值模拟方法初步研究了不同膏体材料的充填作用机理和效果,从中分析了材料的性质与地表下沉的关系,以及充填体对开采活动中周围岩体应力的改善情况,总结出充填体的应力分布规律,并针对实际充填工程提出了提高材料初凝强度、缩短开采与充填时间间隔等一些建议。
A Preliminary study on the action mechanism and effect of paste filling are carried out by numerical simulation based on double - yield model in this paper, the affect of filling material＇s properties on ground subsidence and the improvement of stress state of surrounding rock during mining with paste filling are analyzed. The stress distributing rule of the paste filling body is concluded. Some suggests such as improving the initial coagulate strength of filling material, shorting the interval time between mining and filing, etc. , are proposed for practical filling engineering.
出处
《矿业研究与开发》
北大核心
2007年第3期6-7,52,共3页
Mining Research and Development
关键词
膏体充填
充填材料
双屈服模型
弹性模量
Paste filling, Filling material, Double - yield model, Elastic modulus
