JPH0430410U - - Google Patents

Info

Publication number
JPH0430410U
JPH0430410U JP7172090U JP7172090U JPH0430410U JP H0430410 U JPH0430410 U JP H0430410U JP 7172090 U JP7172090 U JP 7172090U JP 7172090 U JP7172090 U JP 7172090U JP H0430410 U JPH0430410 U JP H0430410U
Authority
JP
Japan
Prior art keywords
reflecting plate
pile
ground
detecting
features
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7172090U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7172090U priority Critical patent/JPH0430410U/ja
Publication of JPH0430410U publication Critical patent/JPH0430410U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の実施例の側面図、第２図は
実施例の作用説明図である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 杭上端部の外表面に突設した反射板と、地盤上
    に固定された前記反射板に対応する超音波送受波
    器と、受信波の周波数偏移を検出する回路とから
    構成されたことを特徴とする杭打用リバウンド測
    定装置。
JP7172090U 1990-07-04 1990-07-04 Pending JPH0430410U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7172090U JPH0430410U (ja) 1990-07-04 1990-07-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7172090U JPH0430410U (ja) 1990-07-04 1990-07-04

Publications (1)

Publication Number Publication Date
JPH0430410U true JPH0430410U (ja) 1992-03-11

Family

ID=31609007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7172090U Pending JPH0430410U (ja) 1990-07-04 1990-07-04

Country Status (1)

Country Link
JP (1) JPH0430410U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09228370A (ja) * 1996-02-27 1997-09-02 Unyusho Daigo Kowan Kensetsukyoku 杭打施工管理装置
KR20210081722A (ko) * 2019-12-24 2021-07-02 이준협 리바운드 체크장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163883A (en) * 1981-04-02 1982-10-08 Mitsubishi Electric Corp Position detector for vehicle by ultrasonic wave
JPS58174873A (ja) * 1982-04-07 1983-10-13 Omron Tateisi Electronics Co 超音波ドツプラ式車両感知器
JPH02171420A (ja) * 1988-12-23 1990-07-03 Doboku Kenkyu Center 建設工事の打設杭の変位測定装置
JPH0235084B2 (ja) * 1983-10-22 1990-08-08 Merii Suuzan Gaadonaa

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163883A (en) * 1981-04-02 1982-10-08 Mitsubishi Electric Corp Position detector for vehicle by ultrasonic wave
JPS58174873A (ja) * 1982-04-07 1983-10-13 Omron Tateisi Electronics Co 超音波ドツプラ式車両感知器
JPH0235084B2 (ja) * 1983-10-22 1990-08-08 Merii Suuzan Gaadonaa
JPH02171420A (ja) * 1988-12-23 1990-07-03 Doboku Kenkyu Center 建設工事の打設杭の変位測定装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09228370A (ja) * 1996-02-27 1997-09-02 Unyusho Daigo Kowan Kensetsukyoku 杭打施工管理装置
KR20210081722A (ko) * 2019-12-24 2021-07-02 이준협 리바운드 체크장치

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