期刊论文

Gao, QF

英文

Journal of Materials in Civil Engineering

0899-1561

2023

35

11

10.1061/JMCEE7.MTENG-15852

The authors gratefully acknowledge the financial support by the National Natural Science Foundation of China (Nos. 52078067 and 52008041), the Open Fund of Key Laboratory of Bridge Engineering Safety Control by Department of Education (Changsha University [52078067, 52008041]; National Natural Science Foundation of China [15KB01]; Open Fund of Key Laboratory of Bridge Engineering Safety Control by Department of Education (Changsha University of Science amp; Technology) [kq1905043]; Changsha City Outstanding Innovative Youth Training Program [2020RC306]; Hunan young scientific and technological innovation talents [202013635007]; Training Program of Innovation and Entrepreneurship for Undergraduates (Changsha University of Science amp; Technology) [2021JJ40576, 2023JJ10045]; Natural Science Foundation of Hunan Province, China

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Desiccation cracking is a common phenomenon for red clay due to alternating wet and dry weathers. The presence of cracks definitely affects the strength of the soil; however, characterizing the development of desiccation cracks inside the soil has been a challenge. The purpose of this study was to propose a method to quantify the volumetric crack rate (VCR) of red clay and investigate the influence of VCR on the unconfined compressive strength (UCS) of red clay. First, the relationship between wave speed and VCR was quantified by a prefabricated crack method to obtain the equivalent VCR (EVCR)...