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Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu

Abstract

An S-wave portable vibrator to serve as a seismic source has been developed for the purpose of applying the shallow-layer reflection method to the study of the soil ground. The author, et al., who previously developed a P-wave portable vibrator has now developed an S-wave version, considering the advantage of the S-wave over the P-wave in that, for example, the S-wave velocity may be directly compared with the N-value representing ground strength and that the S-wave travels more slowly than the P-wave through sticky soil promising a higher-resolution exploration. The experimentally constructed S-wave vibrator consists of a conventional P-wave vibrator and an L-type wooden base plate combined therewith. Serving as the monitor for vibration is a conventional accelerometer without any modification. The applicability test was carried out at a location where a plank hammering test was once conducted for reflection aided exploration, and the result was compared with that of the plank hammering test. As the result, it was found that after some preliminary treatment the results of the two tests were roughly the same but that both reflected waves were a little sharper in the S-wave vibrator test than in the plank hammering test. 4 refs., 9 figs., 1  More>>
Authors:
Kaida, Y; Matsubara, Y; [1]  Nijhof, V; Brouwer, J
  1. OYO Corp., Tokyo (Japan)
Publication Date:
May 01, 1996
Product Type:
Conference
Report Number:
CONF-9605233-
Reference Number:
SCA: 580000; 440700; PA: NEDO-96:913447; EDB-96:173382; SN: 96001687053
Resource Relation:
Conference: 94. SEGJ (The Society of Exploration Geophysicists of Japan) Conference, Butsuri tansa gakkai dai 94 kai (1996 nendo shunki) gakujutsu koenkai, Tokyo (Japan), 15-17 May 1996; Other Information: PBD: May 1996; Related Information: Is Part Of Proceedings of the 94th SEGJ (The Society of Exploration Geophysicists of Japan) Conference; PB: 475 p.; Butsuri tansa gakkai dai 94 kai (1996 nendo shunki) gakujutsu koenkai koen ronbunshu
Subject:
58 GEOSCIENCES; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; SEISMIC SOURCES; MECHANICAL VIBRATIONS; S WAVES; PORTABLE EQUIPMENT; SEISMIC SURVEYS; REFLECTION; ROCK BEDS; SPATIAL RESOLUTION; ACCELEROMETERS
OSTI ID:
395483
Research Organizations:
Society of Exploration Geophysicists of Japan, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE97709027; TRN: 96:913447
Availability:
Available from The Society of Exploration Geophysicists of Japan, 2-18, Nakamagome 2-chome, Ota-ku, Tokyo, Japan; OSTI as DE97709027
Submitting Site:
NEDO
Size:
pp. 74-78
Announcement Date:

Citation Formats

Kaida, Y, Matsubara, Y, Nijhof, V, and Brouwer, J. Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu. Japan: N. p., 1996. Web.
Kaida, Y, Matsubara, Y, Nijhof, V, & Brouwer, J. Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu. Japan.
Kaida, Y, Matsubara, Y, Nijhof, V, and Brouwer, J. 1996. "Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu." Japan.
@misc{etde_395483,
title = {Development of S-wave portable vibrator; S ha potable vibrator shingen no kaihatsu}
author = {Kaida, Y, Matsubara, Y, Nijhof, V, and Brouwer, J}
abstractNote = {An S-wave portable vibrator to serve as a seismic source has been developed for the purpose of applying the shallow-layer reflection method to the study of the soil ground. The author, et al., who previously developed a P-wave portable vibrator has now developed an S-wave version, considering the advantage of the S-wave over the P-wave in that, for example, the S-wave velocity may be directly compared with the N-value representing ground strength and that the S-wave travels more slowly than the P-wave through sticky soil promising a higher-resolution exploration. The experimentally constructed S-wave vibrator consists of a conventional P-wave vibrator and an L-type wooden base plate combined therewith. Serving as the monitor for vibration is a conventional accelerometer without any modification. The applicability test was carried out at a location where a plank hammering test was once conducted for reflection aided exploration, and the result was compared with that of the plank hammering test. As the result, it was found that after some preliminary treatment the results of the two tests were roughly the same but that both reflected waves were a little sharper in the S-wave vibrator test than in the plank hammering test. 4 refs., 9 figs., 1 tab.}
place = {Japan}
year = {1996}
month = {May}
}