EXPERIMENTAL EVALUATION AND FIELD APPLICATIONS OF A CYLINDRICAL SEDIMENT TRAP FOR SUSPENDED SEDIMENT

DOI Web Site 5 References
  • OKABE Takumi
    豊橋技術科学大学大学院 工学研究科建築・都市システム学系
  • AOKI Yusuke
    新菱冷熱工業（株）
  • KATO Shigeru
    豊橋技術科学大学大学院 工学研究科建築・都市システム学系
  • MURAKAMI Tomokazu
    （研）防災科学技術研究所 水・土砂防災研究部門
  • SHIMOKAWA Shinya
    （研）防災科学技術研究所 水・土砂防災研究部門
  • KONO Hiromi
    東海大学 沖縄地域研究センター

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Other Title
  • 円筒型捕砂器の特性評価と浅海域における漂砂観測への適用

Abstract

 A modified cylindrical sediment trap, which was based on a bamboo sampler designed during 1960s to 1980s, for measurements of suspended sediment had been evaluated from experiments in a circulating water channel. Trapping rates of suspended sediment into the trap were quantified using grass particles with several size of a sediment intake and drain hole, and drain mesh aperture in uniform flow.<br> Two neashore measurements were conducted to examine practicability of the trap. In Amitori bay, Iriomote Island, the traps were installed at two site in the bay to measure movements of silty sediments in coral reef. In an estuarine tidal flat, Rokujo-gata, a field measurement of sediment transport was conducted by using of the sediment traps to investigate bathymetric stability and sediment dynamics in a winter season.

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