DETACHING MECHANISM OF GRAVEL DEPOSITED ON CLAYBED AND EFFECT OF COHESION ON IT

DOI Web Site

Bibliographic Information

Other Title
  • 粘土河床上に堆積した砂礫の離脱メカニズムとこれに及ぼす粘着力の影響

Abstract

<p> Rivers with exposed cohesive materials present disaster and environmental concerns. Therefore, it is necessary to understand the phenomenon of gravel deposition and detachment on clay river beds. In this study, we calculated the pick-up rate and adhesive force. The results showed that the larger the bottom friction force is, and the value of the pick-up rate tends to be larger. In addition, the adhesive force shown by the tensile test was within the range of the adhesive force obtained from the force balance in the gravel attached to clay river beds. This suggests that it is possible to obtain the conditions for the detachment of gravel attached to clay river beds from the characteristic values of clay obtained from the tensile test.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top