Hydraulic Experiment on Sediments Uplifting in Water Distribution Tank During Sloshing

DOI

Bibliographic Information

Other Title
  • スロッシング時の配水池沈殿物の舞い上がりに関する水理実験

Abstract

Sediments accumulate at the bottom of water distribution tanks, which are a component of water supply systems. In this study, vibration experiments were conducted using a small rigid water tank to confirm whether the sediments would be lifted by the water flow in the tanks when sloshing occurs during an earthquake. Two types of experiments were conducted under the same shaking conditions: one in which only tracers were placed in the tank to visualize the water flow during sloshing, and the other in which sediments were placed in the tank to measure sediment uplift and turbidity. When sloshing was excited by a sinusoidal wave with a first-order period of the oscillation, it was confirmed that sediment began to rise at the bottom of the tank near the side walls when the water level exceeded a certain level, and turbidity also increased. The turbidity increase due to sediment rising reached a maximum with a time lag after the end of the shaking.

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Keywords

Details 詳細情報について

  • CRID
    1390580328310577024
  • DOI
    10.24762/jndsj.42.s10_21
  • ISSN
    24341037
    02866021
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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