A STUDY ON MEASURING SAND PARTICLE SIZE USING DIGITAL IMAGES OF SEDIMENT BY RUBIN'S METHOD

• TSUJIMOTO Gozo

  神戸市立高専 都市工学科

• YAMADA Fumihiko

  熊本大学大学院自然科学研究科

• KAKINOKI Tetsuya

  神戸市立高専 都市工学科

Bibliographic Information

Other Title

• 砂粒子画像を用いた底質粒径の計測法の妥当性に関する研究

Abstract

A method for determining grain size from digital images of sediment proposed by Rubin was applied to field data and experimental data. Its accuracy is poor under sediments with the high sorting coefficient because fine-grained sand may be burned under coarse-grained sand. It is possible to estimate the grain size unless water permeates the sediment surface for the wet grained sand. But the grain size measured by digital images is nearly equal to that by sieving, The experimental data showed that the sorting process would be generated in a short period, and then fine-grained sand is deposited on the offshore side and coarse one on the onshore side under depositional wave actions.

Journal

• PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN

  PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN 24 1207-1212, 2008

  Japan Society of Civil Engineers

Keywords

• Digital Images
• Grain Size
• Sorting
• Wave Action

Details

• CRID: 1390001205203355904
• NII Article ID: 130003950985
• DOI: 10.2208/prooe.24.1207
• ISSN: 18848265
• ISSN: 09127348
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed