为研究封板厚度与混凝土强度对矿用U型约束砼拱架的影响规律，设计了U型约束砼短柱轴压模拟方案。从短柱破坏形态、应力应变曲线、极限承载力等方面进行对比分析，结果表明，封板厚度、混凝土强度均对试件应力应变曲线基本特征、弹性模量无明显影响，但提高混凝土强度、增加封板厚度可以提高试件弹性极限值与极限承载力。%In order to study the influence of sealing plate and concrete on the latest invented U -type confined concrete arch centering ,a series of axial compression numeric simulation scheme of U-type confined concrete short columns is de-signed ,by which the failure mode ,stress-strain curve ,ultimate bearing capacity are researched .The study result shows that the thickness of sealing plate and strength of concrete have no influence on basic characteristics of stress-strain curve and modulus of elasticity ,but increasing the strength of concrete and the thickness of sealing plate can improve the elastic limit and ultimate bearing capacity .
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