PL75780B2

PL75780B2 -

Info

Publication number: PL75780B2
Application number: PL15373472A
Authority: PL
Priority date: 1972-02-28
Filing date: 1972-02-28
Publication date: 1974-12-31

Description

Od tak otrzymanej linii na stropie karbonu, okresla sie poziomy zasieg wzdluz prostych biegnacych od centrum chronionego tere¬ nu, poslugujac sie przyrzadem wedlug wynalazku oraz mapami warstwicowymi pokladów. Poniewaz do obliczenia zasiegu filara potrzebna jest znajo¬ mosc nachylenia pokladu w miejscu wyznaczonego zasiegu, jego wartosc okresla sie z mapy warstwi- cowej pokladu, stosujac nomogram wynikajacy z zaleznosci m = Ah ctga, gdzie: m — oznacza pozioma odleglosc pomiedzy war- stwicami (modul) Ah — oznacza ciecie warstwicowe danej mapy, natomiast a — kat nachylenia pokladu. 780 4 Majac dana ustalona kategorie ochrony terenu oraz kat upadu pokladu ustawiamy przesuwna ram¬ ke ze szkielkiem 10 tak, by kreska 11 odczytowa wskazywala ustalony dla danej kategorii kat na- 5 chylenia pokladu. Nastepnie przesuwamy jezyczek 7 w ten sposób, by pod kreska 11 odczytowa zna¬ lazla sie liczba 1 lub 10 skali 9 jezyczka 7. W dal¬ szej kolejnosci ustalic nalezy grubosc warstw kar- bonskich nad pokladem, otrzymana jako róznica 10 wysokosci bezwzglednych wyznaczonego zasiegu fi¬ lara w pokladzie oraz punktu linii na stropie kar¬ bonu. Obliczanym zasiegiem filara jest liczba od¬ czytywana ze skali 8, a lezaca pod liczba na skali 9, wyrazajaca grubosc warstw karbonskich. W przy- 15 padku urozmaiconej budowy geologicznej zasieg filara wyznacza sie droga kolejnych przyblizen co wynika z opisanego toku postepowania. 20 PL PLFrom the thus obtained line on the Carboniferous roof, the horizontal range is determined along the straight lines running from the center of the protected area, using the device according to the invention and the contour maps of the decks. Since the calculation of the pillar's range it is necessary to know the slope of the deck in the place of the assigned range, its value is determined from the layered deck map, using the nomogram resulting from the relation m = Ah ctga, where: m - means the horizontal distance between the layers ( modul) Ah - means contour cutting of a given map, while a - deck inclination angle. 780 4 Given the predetermined category of protection of the terrain and the angle of the decline of the deck, we position the sliding frame with the slide 10 so that the reading line 11 points to the angle of the deck inclination determined for the given category. Then we move the pin 7 in such a way that the number 1 or 10 of the scale 9 of the pin 7 is under the reading line 11. Next, determine the thickness of the carbon layers above the deck, obtained as the difference of 10 absolute heights of the determined range fi ¬ light in the deck and the point of the line on the carbon roof. The computed pillar range is the number read on the scale 8, and the number below the number on the scale 9, expressing the thickness of the carbon layers. In the case of a varied geological structure, the range of the pillar is determined by the path of successive approximations, which results from the described course of action. 20 PL PL

Claims

1. Patent claim. A device for determining the range of protective pillars for objects on a surface, consisting of bases, a plug and a frame with a glass, characterized in that the bases (1, 2) have scales (3, 4, 5 and 6). ) logarithmic determined on the basis of the pillar range functions in the Carbon strata, depending on the protection category, the angle of the deck inclination and the coefficient of the shift of the effects, fixed or dependent on the angle of the deck inclination, defined as a horizontal section from the line on the roof Carbon, obtained as a result of the intersection of the Carboniferous ceiling with the conical surface of the pillar, depending on the shape of the protected area and the protection category, while on the lower base (1) and pin 7 the scales (8, 9) of logarithm values of natural numbers are drawn .KI. 42m4, l / 10 75 780 MKP G06g 1/10 v v 1 a & H Wfl PL PL