Mechanism of reinforcement on inwall of coal mine shaft wall
Research Journal of Applied Sciences, Engineering and Technology(2013)
摘要
Based on the theory of elasticity, the analytic solution of temperature stress on shaft wall of coal mine with reinforcement on inwall is deduced. It is shown that with the increment of reinforcement stress Pa, the radial compressive stress σr become larger, the vertical compressive stress σz become less, while the circumferential stress σΘ changed from compressive stress to tensile stress. The stability of shaft wall enhanced with vertical stress reduced by reinforcement on inwall of shaft wall. Compressive steel plate could be used to reinforce the inwall, characterized with low-cost, short time and construction easy. While the intelligent equipment should be developed further to provide everlasting and greater reinforcement on in wall of coal mine shaft wall. © Maxwell Scientific Organization, 2013.
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关键词
inwall,reinforcement,shaft wall,temperature stress
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