Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

1 2021

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Wpływ eksploatacji górniczej kopalni „Wieliczka” na powierzchnię terenu

Stepień Tomasz, Ulmaniec Małgorzata

Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

2021

nr 3

9--16

W artykule, na tle charakterystyki złoża KS „Wieliczka" oraz opisu metodyki pomiarów i prognozowania deformacji i przemieszczeń, porównano prognozy deformacji górotworu i powierzchni terenu z obserwacjami i pomiarami wykonywanymi cyklicznie przez kopalnię.

The article compares the forecasts of deformation of the rock mass and surface land form with the observations and measurements made by the „Wieliczka" Salt Mine. Under the impact of rock mass pressure, empty post-mining spaced undergo the natural process of slow and gradual contraction. In order to determine the impact of mining on the surface of the site, the mine monitors the deformation of the surface and the rock mass, consisting of leveling measurements on the surface and measurements of convergence in underground workings. On the basis of these measurements, an analysis of surface settlement, mine levels and convergence of workings was carried out in order to obtain calculation parameters used to prepare the impact forecast. The forecast was prepared using a mathematical model to predict deformation of the rock mass and the land surface (the so-called Knothe theory). The impact forecast assumes the presence of surface settlement in a vast zone extended to the W-E, with several local synclines within its area (fig. 5-8). The results of mine measurements are compared with the results of the forecast, showing their high correlation. The forecast results may therefore form the basis for spatial planning and land development. According to the forecast, a maximum increment is expected between 2012 and 2037: vertical displacements up to wmax = 0.53 m, horizontal deformations up to emax = 2.95 mm/m and slopes in the profile of the syncline up to Tmax = 4.53 mm/m. The above values correspond at least to the 2nd category of mining area.