JPS56156398A - Rock bolt reinforcement for soft rockbed - Google Patents

Rock bolt reinforcement for soft rockbed

Info

Publication number
JPS56156398A
JPS56156398A JP5713680A JP5713680A JPS56156398A JP S56156398 A JPS56156398 A JP S56156398A JP 5713680 A JP5713680 A JP 5713680A JP 5713680 A JP5713680 A JP 5713680A JP S56156398 A JPS56156398 A JP S56156398A
Authority
JP
Japan
Prior art keywords
rockbed
soft
rock bolt
bolt reinforcement
reinforcement
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
JP5713680A
Other languages
Japanese (ja)
Inventor
Toshimi Nagano
Kinai Takagi
Yoshie Narita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan National Railways
Original Assignee
Japan National Railways
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 by Japan National Railways filed Critical Japan National Railways
Priority to JP5713680A priority Critical patent/JPS56156398A/en
Publication of JPS56156398A publication Critical patent/JPS56156398A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rock Bolts (AREA)
JP5713680A 1980-05-01 1980-05-01 Rock bolt reinforcement for soft rockbed Pending JPS56156398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5713680A JPS56156398A (en) 1980-05-01 1980-05-01 Rock bolt reinforcement for soft rockbed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5713680A JPS56156398A (en) 1980-05-01 1980-05-01 Rock bolt reinforcement for soft rockbed

Publications (1)

Publication Number Publication Date
JPS56156398A true JPS56156398A (en) 1981-12-03

Family

ID=13047137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5713680A Pending JPS56156398A (en) 1980-05-01 1980-05-01 Rock bolt reinforcement for soft rockbed

Country Status (1)

Country Link
JP (1) JPS56156398A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9641109B2 (en) 2014-04-15 2017-05-02 Kokusai Display Kogyo Co., Ltd. Drive circuit for brushless DC motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9641109B2 (en) 2014-04-15 2017-05-02 Kokusai Display Kogyo Co., Ltd. Drive circuit for brushless DC motor

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