- Tytuł:
- Evaluation of pre-jamming indication parameter during blind backfilling technique
- Autorzy:
-
Panda, S.
Pal, S. K.
Murthy, P. V. S. N. - Powiązania:
- https://bibliotekanauki.pl/articles/91940.pdf
- Data publikacji:
- 2016
- Wydawca:
- Główny Instytut Górnictwa
- Tematy:
-
subsidence
abandoned mine
hydraulic gravity blind backfilling
data acquisition system
pressure signature
pre-jamming indication parameter
osiadanie
opuszczona kopalnia
system akwizycji danych
pole ciśnieniowe - Opis:
- Hydraulic blind backfilling is used to reduce subsidence problems above old underground water-logged coal mines. This paper describes experimental research on a fully transparent model of a straight underground mine gallery. An automatic data acquisition systemwas installed in the model to continuously record the sand and water flowrates along with the inlet pressure of the slurry near the model's inlet. Pressure signature graphs and pressure loss curves with bed advancement under different flow conditions are examined. Pressure signature analyses for various flowrates and sand slurry concentrations are conducted to evaluate a pre-jamming indication parameter, which could be used to indicate the arrival of the final stage of filling.
- Źródło:
-
Journal of Sustainable Mining; 2016, 15, 3; 100-107
2300-1364
2300-3960 - Pojawia się w:
- Journal of Sustainable Mining
- Dostawca treści:
- Biblioteka Nauki
Artykuł