- Tytuł:
- Optimisation of selected parameters of the shield support base dedicated for the condition of a weak floor
- Autorzy:
-
Rajwa, Sylwester
Bock, Sven - Powiązania:
- https://bibliotekanauki.pl/articles/2203341.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
modelowanie numeryczne
eksploatacja węgla
podpora hydrauliczna
numerical modelling
PFC3D
shield support
longwall mining - Opis:
- In longwall coal exploitation, problems with the proper functioning of the powered shield support often occur. In many cases, it results from the insufficient load-bearing capacity of the ground (floor) and the inability to achieve the set or yield pressure of the shield support. The improper functioning of the shield support may also result from its construction and the lack of optimisation to work effectively on a weak mine floor. This paper presents an attempt to optimise the operating conditions of the base of two-legged shield support based on the field observations and results of the PFC3D numerical calculation. In the framework of the numerical calculations, the impact of the width of the base and the location of the hydraulic legs on the working conditions of shield support on a weak floor were analysed.
- Źródło:
-
Archives of Mining Sciences; 2022, 67, 3; 509--529
0860-7001 - Pojawia się w:
- Archives of Mining Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł