PL433759A1 - Method of strengthening roof rocks on the longwall face advance - Google Patents

Method of strengthening roof rocks on the longwall face advance

Info

Publication number
PL433759A1
PL433759A1 PL433759A PL43375920A PL433759A1 PL 433759 A1 PL433759 A1 PL 433759A1 PL 433759 A PL433759 A PL 433759A PL 43375920 A PL43375920 A PL 43375920A PL 433759 A1 PL433759 A1 PL 433759A1
Authority
PL
Poland
Prior art keywords
wall
longwall
strengthening roof
ceiling
rocks
Prior art date
Application number
PL433759A
Other languages
Polish (pl)
Other versions
PL242840B1 (en
Inventor
Arkadiusz Gołaszewski
Zbigniew Czarnecki
Maciej Rogowski
Krzysztof Filipowicz
Original Assignee
Gołaszewski Antoni
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 Gołaszewski Antoni filed Critical Gołaszewski Antoni
Publication of PL433759A1 publication Critical patent/PL433759A1/en
Publication of PL242840B1 publication Critical patent/PL242840B1/en

Links

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • 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
    • E21D11/36—Linings or supports specially shaped for tunnels or galleries of irregular cross-section
    • 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
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

Zgłoszenie dotyczy sposobu wzmacniania skał stropowych na wybiegu ściany, znajdujący zastosowanie w górnictwie podziemnym węgla kamiennego. Sposób ten polega na tym, że w stropie (4) ściany na jej wybiegu wykonuje się okresowo, z wyprzedzeniem (L) frontu (5) ściany, przynajmniej z jednego chodnika przyścianowego (2, 3) równoległe do frontu (5) ściany i powierzchni jej stropu (4) otwory iniekcyjne (6, 6') o długości (L2) równej długości frontu (5) ściany, a następnie przez ten otwór iniekcyjny (6, 6') zatłacza się środki wiążące pod ciśnieniem większym od wytrzymałości na ściskanie skał stropu (4). Otwory iniekcyjne (6, 6') wykonuje się w odległości (L1) od powierzchni stropu (4) na wybiegu ściany.The application concerns a method of strengthening roof rocks on the longwall run, which is used in underground hard coal mining. This method consists in the fact that in the ceiling (4) of the wall on its run, periodically, in advance (L) of the front (5) of the wall, from at least one longwall gallery (2, 3) parallel to the front (5) of the wall and the (4) injection holes (6, 6') of length (L2) equal to the length of the front (5) of the wall, and then through this injection hole (6, 6') binders are injected under a pressure greater than the compressive strength of rocks ceiling (4). Injection holes (6, 6') are made at a distance (L1) from the ceiling surface (4) on the wall extension.

PL433759A 2019-06-24 2020-04-30 Method of strengthening roof rocks on the longwall face advance PL242840B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PLP.430343 2019-06-24
PL43034319 2019-06-24

Publications (2)

Publication Number Publication Date
PL433759A1 true PL433759A1 (en) 2020-12-28
PL242840B1 PL242840B1 (en) 2023-05-02

Family

ID=86184115

Family Applications (4)

Application Number Title Priority Date Filing Date
PL433754A PL242837B1 (en) 2019-06-24 2020-04-30 Method for the protection of the rock mass in the area of heading crossings
PL433758A PL242839B1 (en) 2019-06-24 2020-04-30 Method of strengthening the rock mass for the designed heading
PL433759A PL242840B1 (en) 2019-06-24 2020-04-30 Method of strengthening roof rocks on the longwall face advance
PL433756A PL242838B1 (en) 2019-06-24 2020-04-30 Method for the protection of the rock mass in the area of planned heading crossings

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PL433754A PL242837B1 (en) 2019-06-24 2020-04-30 Method for the protection of the rock mass in the area of heading crossings
PL433758A PL242839B1 (en) 2019-06-24 2020-04-30 Method of strengthening the rock mass for the designed heading

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL433756A PL242838B1 (en) 2019-06-24 2020-04-30 Method for the protection of the rock mass in the area of planned heading crossings

Country Status (1)

Country Link
PL (4) PL242837B1 (en)

Also Published As

Publication number Publication date
PL242839B1 (en) 2023-05-02
PL433754A1 (en) 2020-12-28
PL242838B1 (en) 2023-05-02
PL433758A1 (en) 2020-12-28
PL433756A1 (en) 2020-12-28
PL242837B1 (en) 2023-05-02
PL242840B1 (en) 2023-05-02

Similar Documents

Publication Publication Date Title
AU2017405652B2 (en) Method for stepwise construction of preferential gas migration pathway at stope in coal seam
EA201890133A1 (en) METHOD N00 DEVELOPMENT BY LONG BITTINGS
Pysmenniy et al. Development of resource-saving technology when mining ore bodies by blocks under rock pressure
WO2020192055A1 (en) Two-step grouting modified water-protective coal mining method for roof aquifers
SA521430660B1 (en) mineral formation in fractures in a geological formation
CN104453904B (en) Sectional filling mining method without pull slot
ZA202102741B (en) Frozen aquifer-based method for underground longwall face coal mining under water-containing condition
CN103498680B (en) Improve the method for fully mechanized coal face period of beginning mining top-coal recovery rate
CN104131834B (en) A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam
MX2019009799A (en) Paste for use in mining processes.
PL433754A1 (en) Method for the protection of the rock mass in the area of heading crossings
Mei et al. On preventing the high pressure water-inrush from floor with paste-like backfill mining
CN309281682S (en) Grouting pump set
RU2695905C2 (en) Mechanical block for the implementation of loading technology in the form of the blade or well in the drilling and explosive works (variants)
RU172317U1 (en) TECHNOLOGICAL MECHANISM FOR IMPLEMENTATION OF PRELIMINARY FIXING OF MECHANICAL JAMMING AT LEAST TWO-WEDGE TYPE IN A HOLE OR WELL
RU150970U1 (en) CLEANING ANCHOR
RU2540125C2 (en) Relief opening formation
UA153572U (en) THE METHOD OF REFLECTING ORE IN THE DEVELOPMENT OF STEEP DEPOSITS
SU126451A1 (en) Continuous batching system with single-stage groove
CA221672S (en) Rock bolt
RU2304219C1 (en) Method for development entry protection
PL401488A1 (en) Method for tunneling, especially the rescue tunnel in underground mines
SU375379A1 (en) METHOD FOR TREATING MINE DEPOSITS OF USEFUL MINERATED CAMERAS
EA200100944A1 (en) METHOD FOR DEVELOPING POWERFUL SUDDETTING ORE MINES
PL436400A1 (en) Arch support of mining paving support with increased load capacity at the joints