Masonry rehabilitation of damaged by explosive dynamic impacts

Abstract

The article considers the issue of repair of masonry that has received specific damage as a result of explosive dynamic impacts. The characteristic variants of masonry damage are considered, based on the operating stresses. A detailed analysis of the mechanisms of the masonry work in case of damage as a result of an explosion, as well as after reinforcement with an external application of shotcrete was carried out. The practical aspects of the use of shotcrete to strengthen masonry that has been destroyed as a result of explosive dynamic effects are considered, in terms of the features of the interaction of the external application with the masonry, the stages of work on the application of shotcrete in order to effectively include reinforcement elements in the work, the key physical and mechanical characteristics of shotcrete. The results of practical application of masonry reinforcement technology by external applications for a specific multi-storey building damaged as a result of explosive impacts are presented. Based on the results, the conclusion is made

Keywords

• masonry
• mine-explosive effects
• reinforcement
• shotcrete
• modeling