ホッパ内石炭の力学的挙動に関する研究

概要

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In order to estimate the mechanical behavior of coal in a hopper, an experimental and analytical investigation was performed. The experiments were carried out using two-dimensional hopper models. Steel plates or cones were inserted in some hopper models in order to examine the preventative effect of coal arching. A simplified equilibrium equation was derived to obtain the stress distribution in a hopper. It was shown that arching can be quantitatively analyzed using the obtained stress distribution and Jenikes theory.