GB836419A - Improvements in lagging members for underground gallery-support systems - Google Patents

Improvements in lagging members for underground gallery-support systems

Info

Publication number
GB836419A
GB836419A GB20618/56A GB2061856A GB836419A GB 836419 A GB836419 A GB 836419A GB 20618/56 A GB20618/56 A GB 20618/56A GB 2061856 A GB2061856 A GB 2061856A GB 836419 A GB836419 A GB 836419A
Authority
GB
United Kingdom
Prior art keywords
members
lagging
bent
support systems
arch
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
Application number
GB20618/56A
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.)
BOCHUMER GES fur GRUBENAUSBAU
Original Assignee
BOCHUMER GES fur GRUBENAUSBAU
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 BOCHUMER GES fur GRUBENAUSBAU filed Critical BOCHUMER GES fur GRUBENAUSBAU
Publication of GB836419A publication Critical patent/GB836419A/en
Expired 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
    • E21D11/14—Lining predominantly with metal
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/152—Laggings made of grids or nettings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Tents Or Canopies (AREA)
  • Greenhouses (AREA)

Abstract

836,419. Mine lagging. BOCHUMER G.m.b.H. FUR GRUBENAUSBAU-UND TECHNIK. July 3, 1956 [July 4, 1955; Aug. 29, 1955; Dec. 28, 1955], No. 20618/56. Class 20(2) Mine arches 1 are connected by lagging members comprising two or more members 2 connected by a transverse member 7 and bent at both ends to engage both sides of each arch by parts 4a. The free ends 4c may be bent round the arch in situ. The members 2 are inclined apart towards the free ends to allow the closed end of an adjacent lagging member to fit between them. The members 2 are joined by bracing 8. 'In further modifications the ends are bent to embrace the open sides of U-section arches in one of them Figs. 5-7 (not shown) parallel rods are joined intermediately by transverse and diagonal members
GB20618/56A 1955-07-04 1956-07-03 Improvements in lagging members for underground gallery-support systems Expired GB836419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE836419X 1955-07-04

Publications (1)

Publication Number Publication Date
GB836419A true GB836419A (en) 1960-06-01

Family

ID=6761167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20618/56A Expired GB836419A (en) 1955-07-04 1956-07-03 Improvements in lagging members for underground gallery-support systems

Country Status (1)

Country Link
GB (1) GB836419A (en)

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