The impact of ice on structures is a strong concern, in particular for aeronautical or space crafts that are strongly damaged by the atmospheric ice, and more specifically hailstones during hailstorms. During impact, hailstone submitted to complex loading including dynamic tensile component responsible its fragmentation influences mechanical transmitted impacted structure. However, up now, very...

Rib spalling disaster at the coal mining faces severely restricted safe and efficient output of resources. In order to solve this problem, based on analysis current status rib in three-soft seam 1508 Working Face Heyang Coal Mine, a mechanical model sliding-type was established main influencing factors that affect are given. The mechanism grouting technology prevent control has been theoretical...

In this paper, lateral loading tests were conducted on a full-scale RC partial wall with shear span ratio of 0.5, and the relationship between area concrete spalling or loss chord rotation was derived from test results. Furthermore, pre-trained DNN model fine-tuned to generate detector that can accurately detect measure painted surface walls. Finally, it confirmed both them be used evaluate exp...

Abstract Nowadays application of radiation shielding structures grows over the world. Nuclear buildings represent one most complicated structures; that is why a particular type concrete required to withstand different conditions during their lifespan. Unique properties such as behaviour under elevated temperatures, shielding, and thermal stability are essential guarantee fire resistance safety ...