- Tytuł:
- A new prediction model of surface subsidence with cauchy distribution in the coal mine of thick topsoil condition
- Autorzy:
-
Jiang, Yue
Misa, Rafał
Tajduś, Krzysztof
Sroka, Anton
Jiang, Yan - Powiązania:
- https://bibliotekanauki.pl/articles/219750.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
wydobycie węgla
osiadanie powierzchni
rozkład Cauchy'ego
model obliczeniowy
coal mining
thick topsoil
surface subsidence
Probability Integral Method
Cauchy distribution
calculation model - Opis:
- Coal is the main energy source in China, but its underground mining causes surface subsidence, chich seriously damages the ecological and living environments. How to calculate subsidence accurately is a core issue in evaluating mining damage. At present, the most commonly used method of calculation is the Probability Integral Method (PIM), based on a normal distribution. However, this method has limitations in thick topsoil (thickness > 100 m), in that the extent of the calculated boundary of the subsidence basin is smaller than its real extent, and this has an undoubted impact on the accurate assessment of the extent of mining damage. Therefore, this paper introduces a calculation model for surface subsidence based on a Cauchy distribution for thick topsoil conditions. This not only improves the accuracy of calculation at the subsidence basin boundary, but also provides a universal method for the calculation of surface subsidence.
- Źródło:
-
Archives of Mining Sciences; 2020, 65, 1; 147-158
0860-7001 - Pojawia się w:
- Archives of Mining Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł