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建立了煤矿充填巷采中煤柱与充填体耦合作用的力学模型,应用R its法解出了煤柱与充填体耦合作用的弹性解,分析了在充填与不充填情况下煤柱宽度对煤柱位移的影响,得到了煤柱最大水平位移随煤柱宽度及充填体的弹性模量的变化规律。应用Burger流变模型,求出了煤柱与充填体耦合作用的粘弹性解,分析得到了煤柱最大水平位移随时间的变化规律,以及煤柱最大水平位移随着充填体弹性模量及煤柱宽度的变化规律,可为充填巷采工程设计和研究提供参考。
The mechanics model of coal pillar and filling body coupling in coal mine filling roadway was established. The elastic solution of the coupling effect between coal pillar and filling body was solved by R fing method. The influence of pillar width on coal Column displacement, the maximum horizontal displacement of coal pillar with the width of coal pillar and the elastic modulus of filling body is obtained. Using Burger rheological model, the viscoelastic solution of the coupling between coal pillar and backfill was obtained. The maximum horizontal displacement of coal pillar with time was analyzed and the maximum horizontal displacement of coal pillar changed with the elastic modulus of backfill and coal The variation of column width can provide reference for the design and research of filling roadway engineering.