Journal of Japanese Association of Hydrological Sciences
Online ISSN : 1883-7166
Print ISSN : 1342-9612
ISSN-L : 1342-9612
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Volume 33, Issue 1
Displaying 1-4 of 4 articles from this issue
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FOREWORD
RESEARCH NOTE
  • Hydrological Research about the Stability of the Acceleration Tunnel during rainfall
    Atsunao MARUI, Yohei UCHIDA, Shinichi TAKAKURA, Hikaru SATO, Katsumi M ...
    2003 Volume 33 Issue 1 Pages 3-11
    Published: 2003
    Released on J-STAGE: January 07, 2019
    DOIhttps://doi.org/10.4145/jahs.33.3
    JOURNAL FREE ACCESS
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    High energy accelerator has always been fluctuated by the impact of earthquakes or storm rainfalls, against an ideal operation of it. This is a study about the stability of the ring that is belonging to High Energy Accelerator Research Organization located on the Tsukuba upland, during the rainfall events. Tensiometers and TDR moisture content gauges are set in the mound which cover the acceleration tunnel. It is considered that the moisture content of the mound is highly related to the stable operation of the tunnel, so that, a pore air escape route and a drainage pipe are dug in the mound, in the mid observation period. It is made clear from the observation that the control of the pore air leads the stability of the moisture content of the soil (success to keep the low water content of the mound), and we could estimate the fluctuation of the ring after a (heavy) rainfall.

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