KR970023979U - Lock bolt for tunnel construction - Google Patents

Lock bolt for tunnel construction

Info

Publication number
KR970023979U
KR970023979U KR2019950036837U KR19950036837U KR970023979U KR 970023979 U KR970023979 U KR 970023979U KR 2019950036837 U KR2019950036837 U KR 2019950036837U KR 19950036837 U KR19950036837 U KR 19950036837U KR 970023979 U KR970023979 U KR 970023979U
Authority
KR
South Korea
Prior art keywords
lock bolt
tunnel construction
tunnel
construction
lock
Prior art date
Application number
KR2019950036837U
Other languages
Korean (ko)
Other versions
KR0117559Y1 (en
Inventor
구인영
Original Assignee
영풍기계공업주식회사
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 영풍기계공업주식회사 filed Critical 영풍기계공업주식회사
Priority to KR2019950036837U priority Critical patent/KR0117559Y1/en
Publication of KR970023979U publication Critical patent/KR970023979U/en
Application granted granted Critical
Publication of KR0117559Y1 publication Critical patent/KR0117559Y1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
    • E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
KR2019950036837U 1995-11-29 1995-11-29 Rock bolt KR0117559Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950036837U KR0117559Y1 (en) 1995-11-29 1995-11-29 Rock bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019950036837U KR0117559Y1 (en) 1995-11-29 1995-11-29 Rock bolt

Publications (2)

Publication Number Publication Date
KR970023979U true KR970023979U (en) 1997-06-20
KR0117559Y1 KR0117559Y1 (en) 1998-08-01

Family

ID=19431090

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019950036837U KR0117559Y1 (en) 1995-11-29 1995-11-29 Rock bolt

Country Status (1)

Country Link
KR (1) KR0117559Y1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020068981A (en) * 2002-06-28 2002-08-28 지앤에스건설 주식회사 steal pipe micro-pile and grouting installing method
KR20030056025A (en) * 2001-12-27 2003-07-04 장인희 Rock bolt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100896963B1 (en) * 2008-11-04 2009-05-12 김찬수 Rock bolt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030056025A (en) * 2001-12-27 2003-07-04 장인희 Rock bolt
KR20020068981A (en) * 2002-06-28 2002-08-28 지앤에스건설 주식회사 steal pipe micro-pile and grouting installing method

Also Published As

Publication number Publication date
KR0117559Y1 (en) 1998-08-01

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20030206

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee