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]
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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 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