Safety Assessment and Analysis of Cracking Issues in an Ultra-wide Stone Arch Aqueduct
Stone arch aqueducts are among the most prone to diseases such as cracking and water seepage.This paper focuses on a 29-meter-wide ultra-wide stone arch aqueduct with through-length longitudinal cracks.By conducting on-site inspections to obtain the current status of the aqueduct's structure and materials,and employing finite element analysis software to perform static and thermal stress analyses on the main arch ring of the aqueduct,this study assesses the structural safety of the stone arch aqueduct and analyzes the causes of cracking.The results indicate that while the compressive bearing capacity of the main arch ring meets the regulatory requirements,the unreasonable setting of the arch axis of the main arch ring results in uneven longitudinal stress in the aqueduct's cross-section.This,coupled with the impact of temperature decrease,leads to the appearance of longitudinal through cracks in the middle of the aqueduct.
Stone ArchAqueductTemperatureCrackingSafety Assessment
NETL
NSTL
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