Experimental studies were conducted on concrete shear strength, static and dynamic modulusofrigidity and Youngs modulus.
对混凝土的抗剪强度、静力及动力剪切模量和弹性模量作了实验研究分析。
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This paper introduces basic formulas of elastic vibration of conveyor belt and the calculation of its vibration coefficients e. g. cylindrical rigidity and modulusof elasticity.
The study indicates that elastic modulusof the fallen rock in the goaf, the rigidity and setting load of support are the major factors that affect roof behaviour.