Evaluation of pre-jamming indication parameter during blind backfilling technique
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 system was installed in the model to continuo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Central Mining Institute (Główny Instytut Górnictwa)
2016-01-01
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| Series: | Journal of Sustainable Mining |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2300396016300337 |
| _version_ | 1819173193121792000 |
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| author | Susmita Panda S.K. Pal P.V.S.N. Murthy |
| author_facet | Susmita Panda S.K. Pal P.V.S.N. Murthy |
| author_sort | Susmita Panda |
| collection | DOAJ |
| description | 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 system was 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. |
| first_indexed | 2024-12-22T20:19:11Z |
| format | Article |
| id | doaj.art-ec0cc51366d74572ad1a314c89aedd65 |
| institution | Directory Open Access Journal |
| issn | 2300-3960 |
| language | English |
| last_indexed | 2024-12-22T20:19:11Z |
| publishDate | 2016-01-01 |
| publisher | Central Mining Institute (Główny Instytut Górnictwa) |
| record_format | Article |
| series | Journal of Sustainable Mining |
| spelling | doaj.art-ec0cc51366d74572ad1a314c89aedd652022-12-21T18:13:54ZengCentral Mining Institute (Główny Instytut Górnictwa)Journal of Sustainable Mining2300-39602016-01-0115310010710.1016/j.jsm.2016.11.001Evaluation of pre-jamming indication parameter during blind backfilling techniqueSusmita Panda0S.K. Pal1P.V.S.N. Murthy2Department of Mining Engineering, I.I.T. Kharagpur, West Bengal, 721302, IndiaDepartment of Mining Engineering, I.I.T. Kharagpur, West Bengal, 721302, IndiaDepartment of Mathematics, I.I.T. Kharagpur, West Bengal, 721302, IndiaHydraulic 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 system was 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.http://www.sciencedirect.com/science/article/pii/S2300396016300337Subsidence in abandoned underground minesHydraulic gravity blind backfillingData acquisition systemPressure signaturePre-jamming indication parameter |
| spellingShingle | Susmita Panda S.K. Pal P.V.S.N. Murthy Evaluation of pre-jamming indication parameter during blind backfilling technique Journal of Sustainable Mining Subsidence in abandoned underground mines Hydraulic gravity blind backfilling Data acquisition system Pressure signature Pre-jamming indication parameter |
| title | Evaluation of pre-jamming indication parameter during blind backfilling technique |
| title_full | Evaluation of pre-jamming indication parameter during blind backfilling technique |
| title_fullStr | Evaluation of pre-jamming indication parameter during blind backfilling technique |
| title_full_unstemmed | Evaluation of pre-jamming indication parameter during blind backfilling technique |
| title_short | Evaluation of pre-jamming indication parameter during blind backfilling technique |
| title_sort | evaluation of pre jamming indication parameter during blind backfilling technique |
| topic | Subsidence in abandoned underground mines Hydraulic gravity blind backfilling Data acquisition system Pressure signature Pre-jamming indication parameter |
| url | http://www.sciencedirect.com/science/article/pii/S2300396016300337 |
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