JPS61173594U - - Google Patents

Info

Publication number
JPS61173594U
JPS61173594U JP5550785U JP5550785U JPS61173594U JP S61173594 U JPS61173594 U JP S61173594U JP 5550785 U JP5550785 U JP 5550785U JP 5550785 U JP5550785 U JP 5550785U JP S61173594 U JPS61173594 U JP S61173594U
Authority
JP
Japan
Prior art keywords
rock
ultrasonic
probe
collapse
ground
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.)
Granted
Application number
JP5550785U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0330462Y2 (enrdf_load_stackoverflow
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 JP5550785U priority Critical patent/JPH0330462Y2/ja
Publication of JPS61173594U publication Critical patent/JPS61173594U/ja
Application granted granted Critical
Publication of JPH0330462Y2 publication Critical patent/JPH0330462Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP5550785U 1985-04-16 1985-04-16 Expired JPH0330462Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5550785U JPH0330462Y2 (enrdf_load_stackoverflow) 1985-04-16 1985-04-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5550785U JPH0330462Y2 (enrdf_load_stackoverflow) 1985-04-16 1985-04-16

Publications (2)

Publication Number Publication Date
JPS61173594U true JPS61173594U (enrdf_load_stackoverflow) 1986-10-28
JPH0330462Y2 JPH0330462Y2 (enrdf_load_stackoverflow) 1991-06-27

Family

ID=30578247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5550785U Expired JPH0330462Y2 (enrdf_load_stackoverflow) 1985-04-16 1985-04-16

Country Status (1)

Country Link
JP (1) JPH0330462Y2 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6475949A (en) * 1987-09-17 1989-03-22 Nichizo Tec Kk Face breaking detector of shield excavator
JP2020134455A (ja) * 2019-02-25 2020-08-31 パナソニックＩｐマネジメント株式会社 超音波センサ及び界面検出方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6475949A (en) * 1987-09-17 1989-03-22 Nichizo Tec Kk Face breaking detector of shield excavator
JP2020134455A (ja) * 2019-02-25 2020-08-31 パナソニックＩｐマネジメント株式会社 超音波センサ及び界面検出方法

Also Published As

Publication number Publication date
JPH0330462Y2 (enrdf_load_stackoverflow) 1991-06-27

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