PL276281A1 - Self-advancing roof support unit - Google Patents

Self-advancing roof support unit

Info

Publication number
PL276281A1
PL276281A1 PL27628188A PL27628188A PL276281A1 PL 276281 A1 PL276281 A1 PL 276281A1 PL 27628188 A PL27628188 A PL 27628188A PL 27628188 A PL27628188 A PL 27628188A PL 276281 A1 PL276281 A1 PL 276281A1
Authority
PL
Poland
Prior art keywords
self
support unit
roof support
advancing roof
advancing
Prior art date
Application number
PL27628188A
Inventor
Santai S Zhetesov
Original Assignee
Karagandinskij Polt Institut
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 SU874334763A external-priority patent/RU1830420C/en
Application filed by Karagandinskij Polt Institut filed Critical Karagandinskij Polt Institut
Publication of PL276281A1 publication Critical patent/PL276281A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Crushing And Grinding (AREA)
  • Chutes (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
PL27628188A 1987-12-08 1988-12-08 Self-advancing roof support unit PL276281A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU874334763A RU1830420C (en) 1987-12-08 1987-12-08 Powered support section
SU4334765 1987-12-08

Publications (1)

Publication Number Publication Date
PL276281A1 true PL276281A1 (en) 1989-07-10

Family

ID=26666136

Family Applications (1)

Application Number Title Priority Date Filing Date
PL27628188A PL276281A1 (en) 1987-12-08 1988-12-08 Self-advancing roof support unit

Country Status (4)

Country Link
CN (1) CN1015318B (en)
DE (1) DE3841061A1 (en)
HU (1) HUT57378A (en)
PL (1) PL276281A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20307907U1 (en) * 2003-05-19 2003-07-17 DBT GmbH, 44534 Lünen lifting cylinder
CN102562066B (en) * 2012-01-16 2013-11-13 袁野 Method for mechanically mining coal by using steep seam pseudo inclination bracing type retractable flexible shield support
CN102926785B (en) * 2012-11-16 2015-10-14 山东矿机集团股份有限公司 The method of roof fall before anti-coal wall caving and frame and hydraulic support thereof
CN105888712B (en) * 2016-04-16 2018-02-02 太原理工大学 A kind of Sub-Level Caving actively crushes hydraulic support
CN108374684B (en) * 2018-05-10 2024-07-23 陕西陕煤黄陵矿业有限公司 Special-shaped supporting equipment for end head of fully mechanized mining face
CN109538268B (en) * 2018-11-15 2020-05-26 河南工程学院 Temporary movable supporting device used in mine roadway expanding repair
CN110671141A (en) * 2019-10-28 2020-01-10 陕西开拓建筑科技有限公司 Hydraulic support for separate mining and transportation mining of thin coal seam and mining method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360742A1 (en) * 1976-05-21 1978-03-03 Bennes Marrel Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor
DE2705460A1 (en) * 1977-02-10 1978-08-17 Hemscheidt Maschf Hermann Mine gallery roof drilling protective support - has overhead sloping plate with opening for drill between front and rear supports
AU540670B2 (en) * 1980-11-28 1984-11-29 Dowty Mining Equipment Ltd. Mine roof support
CS229507B1 (en) * 1981-04-09 1984-06-18 Tadeas Ing Wala Support unit for coal or industrial minerals seam mining in benches and/or by roof enlarging

Also Published As

Publication number Publication date
CN1015318B (en) 1992-01-22
CN1034036A (en) 1989-07-19
DE3841061A1 (en) 1989-06-22
HUT57378A (en) 1991-11-28

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