GB2309474B - Longwall mining roof control system - Google Patents

Longwall mining roof control system

Info

Publication number
GB2309474B
GB2309474B GB9707918A GB9707918A GB2309474B GB 2309474 B GB2309474 B GB 2309474B GB 9707918 A GB9707918 A GB 9707918A GB 9707918 A GB9707918 A GB 9707918A GB 2309474 B GB2309474 B GB 2309474B
Authority
GB
United Kingdom
Prior art keywords
control system
longwall mining
roof control
mining roof
longwall
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.)
Expired - Fee Related
Application number
GB9707918A
Other versions
GB9707918D0 (en
GB2309474A (en
Inventor
Jr Frank Calandra
John C Stankus
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.)
Jennmar Corp
Original Assignee
Jennmar Corp
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
Priority claimed from US08/151,791 external-priority patent/US5425601A/en
Application filed by Jennmar Corp filed Critical Jennmar Corp
Publication of GB9707918D0 publication Critical patent/GB9707918D0/en
Publication of GB2309474A publication Critical patent/GB2309474A/en
Application granted granted Critical
Publication of GB2309474B publication Critical patent/GB2309474B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/006—Lining anchored in the rock
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Remote Sensing (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
GB9707918A 1993-11-12 1994-09-30 Longwall mining roof control system Expired - Fee Related GB2309474B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/151,791 US5425601A (en) 1993-11-12 1993-11-12 Longwall mining roof control system
GB9419701A GB2283771B (en) 1993-11-12 1994-09-30 Longwall mining roof control system

Publications (3)

Publication Number Publication Date
GB9707918D0 GB9707918D0 (en) 1997-06-04
GB2309474A GB2309474A (en) 1997-07-30
GB2309474B true GB2309474B (en) 1997-10-29

Family

ID=26305709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9707918A Expired - Fee Related GB2309474B (en) 1993-11-12 1994-09-30 Longwall mining roof control system

Country Status (1)

Country Link
GB (1) GB2309474B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111364995B (en) * 2020-03-26 2021-02-12 中国矿业大学(北京) Construction method of fully mechanized caving coal roadway stable roof-coal pillar structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425601A (en) * 1993-11-12 1995-06-20 Jennmar Corporation Longwall mining roof control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425601A (en) * 1993-11-12 1995-06-20 Jennmar Corporation Longwall mining roof control system

Also Published As

Publication number Publication date
GB9707918D0 (en) 1997-06-04
GB2309474A (en) 1997-07-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020930