Journal of the Japan Society of Erosion Control Engineering, Vol.56,No.6,2004

Shock absorbing effect of rubber‐cushion for retaining wall by impact tests

Yoshiki NISHIMURA, Yoshimi SONODA

Abstract

This paper presents the experimental approaches on the shock absorbing effect of rubber‐cushion by impact tests. First, the static compression test was performed to compare the filled rubber with the hollow rubber. Second, the preliminary impact test was carried out in order to examine the effect of rubber‐cushion depth. It is found that the rubber‐cushion depth has no influence on the maximum impact load within the preliminary impact test. Finally, the model impact test was executed in order to investigate the effect of impact speed for the rubber‐cushion. It is confirmed that the rubber‐cushion can reduce about40‐50%of impact load for the velocity of more than5m/sec.

Key words:rubber‐cushion, shock absorbing effect, impact load

Japan Society of Erosion Control Engineering
Sabo Kaikan, 2-7-5 Hirakawa-cho, Chiyoda-ku,
Phone +81-3-3222-0747 Fax +81-3-3230-6759
http://www.jsece.or.jp/
Mail jimu@jsece.or.jp