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  • 标题:Determining Roughness Angle of Limestone Using Optical Laser Scanner
  • 本地全文:下载
  • 作者:E. Özgür Avşar ; Erkan Bozkurtoğlu ; Umut Aydar
  • 期刊名称:International Journal of Environment and Geoinformatics
  • 电子版ISSN:2148-9173
  • 出版年度:2016
  • 卷号:3
  • 期号:3
  • 页码:57-75
  • DOI:10.30897/ijegeo.306482
  • 语种:English
  • 出版社:IJEGEO
  • 摘要:In this study, a limestone rock core specimen with 6.94 cm x 4.95 cm dimensions was exposed to tensile forceby Brazilian test and rough surfaces were obtained. Following the Brazilian test, roughness angles weremeasured by a laser scanner along one side of the rock specimen. For this purpose, Nextengine 3D Desktopscanner was used. The 17 profiles were studied along the width of the core with a 0.3 mm interval.Approximately 10000 points produced for each profile, some of them are in the “+” and some are in the “-”direction along each profile. Maximum and minimum roughness angles are calculated as 65.580 and 1.56x10-5degree respectively. The average roughness angle value of the profiles is 13.870. The percentage of theroughness angle between 13 and 14 degrees were 2.65% and 2.70% for “-” and “+” directions on the rocksurface, respectively. Mathematical analyses of 17 profiles showed that roughness profiles can be expressed by21st – 30th degree polynomial equations with approximately 10-4 degree standard deviation.
  • 关键词:Roughness angle; limestone; image processing
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