基于近景数字摄影测量的橡胶混凝土抗冲磨深度研究

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关键词：橡胶混凝土；近景摄影测量；抗冲磨深度中图分类号：TU528.36 文献标志码：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.13.013文章编号：1003-5168（2025）13-0066-05

Study on Erosion-Wear Depth of Rubber Concrete Based on CloseRange Digital Photogrammetry

CHENXiaoxiao1 SHAO Yufei²

（1.College of Civil Engineering and Transportation，North China Universityof Water Resources and Electric Power，Zhengzhou 45Ooo0，China; 2.School of Mechanical Engineering，North China Universityof Water Resources and Electric Power， Zhengzhou 45oooo， China）

Abstract： [Purposes]To further refine the evaluation method for the erosion-wear resistance of concrete and comprehensively characterize the wear condition of concrete specimens，this paper proposes the erosion-wear depth as a new evaluation indicator on the basis of traditional indicators.[Methods] Taking rubberized concrete as the research subject，this study employed close-range digital photogrammetry technology on the basis of the underwater steelball method.This involved capturing images of the eroded specimen surface to compute the 3D spatial coordinates of surface points and determine the erosionwear depth after testing.[Findings] As the rubber content increased，the erosion-wear depth of rubberized concrete gradually decreased， indicating progressively enhanced erosion-wear resistance.[Conclusion] Close-range photogrammetry enables effcient and rapid acquisition of 3D spatial models for eroded specimens， significantly improving the quantitative assessment of wear conditions. Keywords： rubber concrete; close-range photogrammetry; erosion-wear depth

0 引言

我国河流众多且部分区域含沙量较大，泄水流速较快，在下泄过程中，夹带悬移质或推移质的高速水流会对下游河床及泄水建筑物造成严重的冲磨破坏[2]。（剩余5481字）