Title:
S WAVE-GENERATING MECHANISM AT LARGE TRIAXIAL CELL
Document Type and Number:
Japanese Patent JP3689763
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an S wave-generating mechanism as a percussion system not influenced by a cell pressure which can cope with a height change of a sample when the sample is pressed tight, and can make a percussion strength constant at all times.
SOLUTION: A receive bar 19 as a part receiving a percussion is set straight at a side end part of an upper face of a cap 6 placed on an upper end face of a sample fitted in a large triaxial cell. A swingable hammer body 31 for hitting the receive bar 19 towards a center of the cap 6 is suspended from an upper plate 20 of a triaxial chamber thereabove. Moreover, a rotary shaft 24 rotated by an upper end handle 25 longitudinally penetrates the upper plate 20 in a manner so that a level can be adjusted to match the hammer body 31. A part of a rotational locus at a leading end of a work shaft 28 provided horizontally at a lower end of the rotary shaft 24 overlaps with a swing locus 33 of a hammer shaft 31b of the hammer body 31.
Inventors:
Munenori Hatanaka
Akihiko Uchida
Akihiko Uchida
Application Number:
JP11816797A
Publication Date:
August 31, 2005
Filing Date:
May 08, 1997
Export Citation:
Assignee:
TAKENAKA CORPORATION
International Classes:
G01N3/00; E02D1/00; G01N3/30; G01N33/24; (IPC1-7): G01N3/00; E02D1/00; G01N33/24
Domestic Patent References:
| JP746073B2 | ||||
| JP62121544U | ||||
| JP614953U |
Other References:
西尾伸也、他,掘削に伴う地盤のS波速度の変化,土質工学研究発表会発表講演集,日本,1998年 5月10日,第23回、2分冊の1,p.641-644
Attorney, Agent or Firm:
Kazutoyo Watanabe
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