Numerical simulations of multiple cracks in concrete face rockfill dams coupled multi-factor during construction
Source abstract
Abstract
Based on actual environmental temperature changes and the influence of concrete hydration heat release, a model for the temperature field during the construction of concrete face rockfill dams (CFRDs) was developed. Considering the influence of elastic modulus changes, dry shrinkage, creep, and other factors on the initial concrete pouring stage, a thermal-mechanical coupling model of the concrete face was established through secondary program development. Additionally, a finite element method (FEM)-extended finite element method (XFEM) model coupled with a multi-crack simulation considering the temperature change and long-term deformation of the rockfill was proposed. Through the verification of engineering examples, the performance response of the concrete face under the influence of multiple complex factors, such as ambient temperature changes, concrete face characteristics variations, and rockfill creep, was analyzed. The crack formation mechanism in a concrete face during construction was revealed, and specific engineering measures for the crack resistance of the concrete face were proposed. The findings of this study provide a more reliable technical approach for the accurate analysis of the structural behavior of CFRDs and crack prevention in concrete faces.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dam Engineering and Safety · Geotechnical Engineering and Underground Structures · Numerical methods in engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
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