PL112732B2 - Shield-type mining roof support - Google Patents

Shield-type mining roof support Download PDF

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Publication number
PL112732B2
PL112732B2 PL20648978A PL20648978A PL112732B2 PL 112732 B2 PL112732 B2 PL 112732B2 PL 20648978 A PL20648978 A PL 20648978A PL 20648978 A PL20648978 A PL 20648978A PL 112732 B2 PL112732 B2 PL 112732B2
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PL
Poland
Prior art keywords
shield
mining
decks
diameter
roof support
Prior art date
Application number
PL20648978A
Other languages
Polish (pl)
Other versions
PL206489A1 (en
Inventor
Kazimierz Zycinski
Zbigniew Zwolinski
Jerzy Cieslik
Original Assignee
Ts Osrodek P K Maszyn Gorniczy
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 Ts Osrodek P K Maszyn Gorniczy filed Critical Ts Osrodek P K Maszyn Gorniczy
Priority to PL20648978A priority Critical patent/PL112732B2/en
Publication of PL206489A1 publication Critical patent/PL206489A1/en
Publication of PL112732B2 publication Critical patent/PL112732B2/en

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Description

Przedmiotem wynalazku jest oslonowa obudowa gór¬ nicza dla pokladów o zwiezlych stropach i trudno ura¬ bialnych.Znane obudowy oslonowe wszelkiego typu nie umozli¬ wiaja ingerencji obslugi w pole zawalowe za tarcza oslo¬ nowa. W pokladach trudno urabialnych i zwiezlych stro¬ pach w miare postepu prac tworza sie za obudowapustki.W przypadku duzej zwiezlosci stropu pustki nie zrabo¬ wanego stropu siegaja kilkunastu lub kilkudziesieciu me¬ trów w glab za obudowe. W przypadku, gdy tak dluga pólka skalna ulegnie zalamaniu, wyzwolona energia po¬ woduje wzrost cisnienia stropu w obrebie pracy urza¬ dzen, co moze doprowadzic do zniszczenia obudowy.W skrajnym przypadku-rnoze to doprowadzic do tak zwa¬ nego tapniecia, w czasie którego wyzwolona energia kru¬ szy skaly i nastepuje zasypanie wyrobiska. Celem zapobiezenia temu zjawisku, dokonuje sie zrywania stropu materialem wybuchowym. Prace tejednak w przy¬ padku obudów oslonowych sa utrudnione wobec utrud¬ nionego dostepu do czesci zawalowej wyrobiska, a ponadto w kazdym przypadku wejscie do zawalowej czesci wyrobiska jest niebezpieczne.Celem wynalazku jest umozliwienie zrywania stropu w przestrzeni zawalowej metoda strzelnicza za obudowe oslonowa bez koniecznosci wchodzenia górników w pole zawalowe.W obudowie oslonowej wedlug wynalazku, w tarczy oslonowej i w stropnicach badz tylko w stropnicach lub tarczach oslonowych wykonano przelotowe kanaly dowolnie rozmieszczone o srednicy umozliwiajacej swo¬ bodne przejscie wiertla górniczego. Kanaly te w czasie normalnej eksploatacji sa zatykane odpowiednimi kor¬ kami. W przypadku koniecznosci zrywania stropu lub w przypadku zaklinowania obudowy w posadzce wypelnia¬ jacej pole zawalowe, wierci sie w stropie lub bryle opiera- jacej sie o tarcze otwory strzalowe poprzez kanaly w obudowie a w wykonane otwory w stropie lub brylach wprowadza sie material wybuchowy. O ile nie nastapi samorabowanie sie stropu za obudowa, a nie zrabowana przestrzen przekroczy dopuszczalne granice, nastepuje odpalanie nabojów i zrywanie zruszonego stropu. W ten sposób mozliwe jest zapobieganie niebezpieczenstwom towarzyszacym zrywaniu sie stropu w pustkach wyrobisk bez koniecznosci bezposredniego wchodzenia obslugi w pole zawalowe.Obudowa oslonowa wedlug wynalazku przedstawiona jest w przykladzie wykonania na zalaczonym rysunku w widoku z boku.W stopnicy 1 i/lub oslonowej tarczy 2obudowy wyko¬ nano przelotowe kanaly 3o srednicy wiekszej od srednicy wiertla górniczego. W razie koniecznosci wierci sie otwory strzalowe w stropie lub zalegajacych w polu zawalowym brylach poprzez otwory 3. Nastepnie mate¬ rialem wybuchowym powoduje sie rabowanie stropulub kruszenie bryl opierajacych sie o obudowe i powoduja¬ cych jej klinowanie.W czasie normalnej pracy obudowy kanaly 3 sa zaslepione.3 -412 732 4 Zastrzezenia patentowe 1. Oslonowa obudowa górnicza dla pokladów o zwiezlych stropach i trudnourabialnych, znamienna tym, ze w oslonowych tarczach (2) ma co najmniej jeden prze¬ lotowy kanal (3) o srednicy wiekszej od srednicy wiertla górniczego. 2. Oslonowa obudowa wedlug zastrz. 1, znamienna tym, ze przelotowy kanal (3) wykonany jest w stropnicy (1) 3. Oslonowa obudowa górnicza dla pokladów o zwiezlych stropach i trudnourabialnych, znamienna tym, ze w stropnicach (1) ma co najmniej jeden przelotowy kanal (3) o srednicy wiekszej od srednicy wiertla górni¬ czego skierowany w strone stropu. 4. Oslonowa obudowa, wedlug zastrz. 3, znamienna tym, ze przelotowy kanal (3) wykonanyjest w oslonowej tarczy (2). jL 1 Prac. Poligraf. UP PRL naklad 120+18 Cena 45 zl PLThe subject of the invention is a mining shield for decks with concise roofs and difficult to machine. Known shielding housings of all types do not allow the operator to interfere with the collapse field behind the shield. In hard-to-work decks and with concise ceilings, as the work progresses, hollows are formed behind the casing. In the case of high conciseness of the ceiling, the voids of the untreated ceiling reach a dozen or several dozen meters deep behind the casing. In the event that such a long rock shelf collapses, the released energy causes an increase in the ceiling pressure in the area of operation of the devices, which may lead to the destruction of the casing. In an extreme case, this can lead to the so-called tapping, during which the released energy crumbles the rocks and the excavation is filled up. In order to prevent this, the ceiling is broken with explosives. However, the work in the case of shielding covers is difficult due to the difficult access to the collapsed part of the excavation, and moreover, in any case entering the collapsed part of the excavation is dangerous. According to the invention, in the casing of the casing, in the casing disc and in the canopies or only in the canopies or guard discs, through channels of arbitrary spacing of a diameter enabling a free passage of the mining drill were made. During normal operation, these channels are blocked with suitable plugs. If it is necessary to break the ceiling or if the housing is wedged in a floor filled with a cave field, it is drilled in the ceiling or a block leaning against the shields with shot holes through channels in the housing, and explosives are introduced into the holes made in the ceiling or the blocks. As long as the roof behind the housing does not self-mutilate, and the plundered space does not exceed the permissible limits, the shells are fired and the shattered roof is torn off. In this way, it is possible to prevent the dangers of breaking the roof in the voids of the excavations without the operator having to enter the caving field directly. The housing according to the invention is shown in the embodiment example in the attached drawing in side view. The tread 1 and / or the shield 2 ¬ nano through channels with a diameter greater than the diameter of the mining drill. If necessary, arrow holes are drilled in the roof or the lumps lying in the caving field through holes 3. Then, the explosive material causes the ceiling to be robbed or crumbling of the lumps bearing on the casing and causing it to wedge. During normal operation of the casing, the channels 3 are blocked .3-412 732 4 Claims 1. A mining shell for coarse roofs and difficult to workable seams, characterized in that in the shields (2) it has at least one passage (3) with a diameter larger than the diameter of the mining drill. 2. Protective housing according to claim 3. A shielded mining support for decks with concave and hard-to-workable decks, characterized in that in the canopy (1) it has at least one passage (3) with Larger diameter than the diameter of the mining drill, directed towards the roof. 4. Shield housing, according to claim The device of claim 3, characterized in that the through channel (3) is formed in the shielding disc (2). jL 1 Work. Typographer. UP PRL, circulation 120 + 18 Price PLN 45 PL

Claims (4)

Zastrzezenia patentowe 1. Oslonowa obudowa górnicza dla pokladów o zwiezlych stropach i trudnourabialnych, znamienna tym, ze w oslonowych tarczach (2) ma co najmniej jeden prze¬ lotowy kanal (3) o srednicy wiekszej od srednicy wiertla górniczego.Claims 1. A mining enclosure for decks with compact and difficult to workable seams, characterized in that in the shielding disks (2) it has at least one passage (3) with a diameter larger than that of the mining drill. 2. Oslonowa obudowa wedlug zastrz. 1, znamienna tym, ze przelotowy kanal (3) wykonany jest w stropnicy (1)2. Protective housing according to claim 1, characterized in that the through duct (3) is made in the canopy (1) 3. Oslonowa obudowa górnicza dla pokladów o zwiezlych stropach i trudnourabialnych, znamienna tym, ze w stropnicach (1) ma co najmniej jeden przelotowy kanal (3) o srednicy wiekszej od srednicy wiertla górni¬ czego skierowany w strone stropu.3. A mining enclosure for decks with concise roofs and hard-to-workable seams, characterized in that in the canopies (1) it has at least one passage (3) with a diameter larger than the diameter of the mining drill, directed towards the roof. 4. Oslonowa obudowa, wedlug zastrz. 3, znamienna tym, ze przelotowy kanal (3) wykonanyjest w oslonowej tarczy (2). jL 1 Prac. Poligraf. UP PRL naklad 120+18 Cena 45 zl PL4. Shield housing, according to claim The device of claim 3, characterized in that the through channel (3) is formed in the shielding disc (2). jL 1 Work. Typographer. UP PRL, circulation 120 + 18 Price PLN 45 PL
PL20648978A 1978-04-28 1978-04-28 Shield-type mining roof support PL112732B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20648978A PL112732B2 (en) 1978-04-28 1978-04-28 Shield-type mining roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20648978A PL112732B2 (en) 1978-04-28 1978-04-28 Shield-type mining roof support

Publications (2)

Publication Number Publication Date
PL206489A1 PL206489A1 (en) 1979-02-26
PL112732B2 true PL112732B2 (en) 1980-10-31

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Application Number Title Priority Date Filing Date
PL20648978A PL112732B2 (en) 1978-04-28 1978-04-28 Shield-type mining roof support

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PL (1) PL112732B2 (en)

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PL206489A1 (en) 1979-02-26

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