In this paper we test the main pressure resistance of common slitter by means of electric resistance strain method,analyze the influence on the pressure resistance of the factors such as width,kind and height of paper,angle of cutting knives,falling ways of cutting knives and structural form of clamping bar.
This paper introduces an experimental research on the compressive strength of the heated concrete tested on the small cores of 45 mm and 70 mm in diameter by compression and transverse cutting methods.
主要介绍采用直径45mm和70mm小芯样抗压及横劈法对高温后混凝土抗压强度进行检测的试验研究。
According to the safe production actuality of Peigou Coal Mine,The support method is improved for mine pressure controlling by the combined support with compression and yielding.
In order to fully used the compression resistance of the concrete,this paper analyzed the stress distribution to the composite beam in the actual use,and put forward to the method calculating the concrete flange plate thickness.