流域地質の異なる河川における石礫の磨耗・破砕現象のモデル化に基づく河床材料の縦断変化に関する研究  [in Japanese] STUDY ON LONGITUDINAL SORTING OF RIVERBED MATERIALS BASED ON THE MODELLING OF GRAVEL ABRASION PROCESSES IN THE WATERSHEDS WITH DIFFERENT GEOLOGIES  [in Japanese]

Access this Article

Author(s)

    • 田代 喬 TASHIRO Takashi
    • 名古屋大学 大学院環境学研究科都市環境学専攻 Dept. of Environmental Engineering and Architecture, Graduate School of Environmental Studies, Nagoya University
    • 辻本 哲郎 TSUJIMOTO Tetsuro
    • 名古屋大学 大学院工学研究科社会基盤工学専攻 Dept. of Civil Engineering, Graduate School of Engineering, Nagoya University

Abstract

Most gravel-bed rivers show the longitudinal sorting on riverbed materials. This phenomenon is due to combination of the selective sorting and the abrasion in bed material transport processes. We developed the stochastic model of bed-load transport with gravel abrasion processes. Applying this model to some ideal rivers which have different concavities in their longitudinal profiles and different geologies in their watersheds, we examined that the longitudinal sorting of riverbed materials was dependent not only on their selective transport according to the hydraulics, but also on their abrasion processes characterized by their watershed geology and lithology.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 68(4), I_907-I_912, 2012

    Japan Society of Civil Engineers

Codes

Page Top