Research Progress on Influence of High Rock Temperature on Performance of Shotcrete

Abstract

Abstract: In some major tunnel projects, the phenomenon of high rock temperature often occurs. High temperature will lead to the deterioration of the workability, mechanical properties and durability of shotcrete, which will affect the stability and safety of tunnel structure. Therefore, it is vital to study the influence of high rock temperature on the performance of shotcrete. This paper summarizes the research progress on the effect of high rock temperature on the mechanical properties, durability and microstructure of shotcrete in recent years, introduces the modification measures of shotcrete under high rock temperature, and prospects the prevention and control measures for thermal damage of high temperature tunnel in the future.

Key words: high rock temperature, shotcrete, mechanical property, durability, microstructure

CLC Number:

TU528

CHEN Junsong, WANG Wei, QIAO Min, ZHAO Shuang, ZENG Luping. Research Progress on Influence of High Rock Temperature on Performance of Shotcrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1441-1452.

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