华南理工大学学报（自然科学版）2025，Vol.53Issue(2)：80-91,12.DOI:10.12141/j.issn.1000-565X.240152
碎石封层三维视角的剥落程度量化方法
Quantitative Method of Aggregate Spalling Degree of Chip Seal in Three Dimension
摘要
Abstract
In order to accurately quantify aggregate loss in chip seals and address the limitations of traditional methods that overlook the shape and orientation of chip seals,this study utilized indoor 3D laser scanning equip-ment to capture point cloud data of chip seals before and after stripping.By introducing the minimum intra-class variance,the elevation segmentation threshold was determined,allowing for the spatial stripping contours.This enables the calculation of stripping area indicators and provides the error distribution of the laser method for measu-ring stripping areas.Individual stripped aggregates were reassembled,and the stripping mass and stripping area in-dicators for each stripped region were compared.Additionally,the AIMS-Ⅱ system was employed to examine the shape characteristics of the spalling aggregates.The results demonstrated the mean relative error for 75 stripping area samples was 4.07％,indicating high detection accuracy.The standard deviation of the spalling area calcula-tion ranged from 1.73 to 3.89,confirming the good detection stability.A comparison of the mass loss and spalling area of each spalling region revealed a general trend of increasing mass loss with increasing spalling area;however,discrepancies were observed where increased spalling area corresponded to decreased mass loss.Shape analysis using AIMS-Ⅱ indicated that flaky aggregates tend to have large spalling areas but small masses,whereas needle-like aggregates typically have large mass loss but small spalling areas.关键词
道路工程/碎石封层/三维激光/集料剥落/剥落面积Key words
road engineering/chip seal/3D laser/aggregate spalling/spalling area分类
交通工程引用本文复制引用
张炎棣,惠冰,马子业,李元乐,汪海年..碎石封层三维视角的剥落程度量化方法[J].华南理工大学学报（自然科学版）,2025,53(2):80-91,12.基金项目
国家重点研发计划项目(2021YFB2601000) （2021YFB2601000）
国家自然科学基金项目(52078048) Supported by the National Key R&D Program of China(2021YFB2601000)and the National Natural Science Foundation of China(52078048) （52078048）
