基于近景數(shù)字?jǐn)z影測量的橡膠混凝土抗沖磨深度研究

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關(guān)鍵詞：橡膠混凝土；近景攝影測量；抗沖磨深度中圖分類號：TU528.36 文獻(xiàn)標(biāo)志碼：ADOI：10.19968/j.cnki.hnkj.1003-5168.2025.13.013文章編號：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

我國河流眾多且部分區(qū)域含沙量較大，泄水流速較快，在下泄過程中，夾帶懸移質(zhì)或推移質(zhì)的高速水流會(huì)對下游河床及泄水建筑物造成嚴(yán)重的沖磨破壞[2]。（剩余5481字）