PL90183B1 - - Google Patents

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Publication number
PL90183B1
PL90183B1 PL16920274A PL16920274A PL90183B1 PL 90183 B1 PL90183 B1 PL 90183B1 PL 16920274 A PL16920274 A PL 16920274A PL 16920274 A PL16920274 A PL 16920274A PL 90183 B1 PL90183 B1 PL 90183B1
Authority
PL
Poland
Prior art keywords
tapan
tons
decks
typographer
prl
Prior art date
Application number
PL16920274A
Other languages
English (en)
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 filed Critical
Priority to PL16920274A priority Critical patent/PL90183B1/pl
Publication of PL90183B1 publication Critical patent/PL90183B1/pl

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  • Bridges Or Land Bridges (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

Opis patentowy opublikowano: 30.07.19772 90183 Efektem technicznym wynalazku jest uzyskanie odprezenia skal zalegajacych nad samym wybieranym pokladem oraz nad wszystkimi wyzej zalegajacymi pokladami. Wprowadzenie obudowy o podpornosci roboczej 70 ton pozwolilo wyeliminowac zagrozenie wynikajace z naprezenia górotworu, a wystepujace skutki tapan przejawiaja sie jedynie w przestrzeni zawalowej. Umozliwia to wybieranie pokladu dlugimi frontami bez pozo¬ stawienia resztek. PL

Claims (1)

1. Zastrzezenie patentowe Sposób odprezania pokladów grupy siodlowej oraz przesuniecie strefy tapan do przestrzeni wyeksploato¬ wanej, znamienny tym, ze rozpoczyna sie eksploatacje od grubego, najnizej lezacego pokladu (1) z pel¬ nym zawalem stropu (2) i przy czym stosuje sie obudowe o podpornosci co najmniej 70 ton. Prac. Poligraf. UP PRL naklad 120+18 Cena 10 zl PL
PL16920274A 1974-03-01 1974-03-01 PL90183B1 (pl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16920274A PL90183B1 (pl) 1974-03-01 1974-03-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL16920274A PL90183B1 (pl) 1974-03-01 1974-03-01

Publications (1)

Publication Number Publication Date
PL90183B1 true PL90183B1 (pl) 1977-01-31

Family

ID=19966294

Family Applications (1)

Application Number Title Priority Date Filing Date
PL16920274A PL90183B1 (pl) 1974-03-01 1974-03-01

Country Status (1)

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PL (1) PL90183B1 (pl)

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