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Determination Of The Stopline Subsidence Profile Of Phalen 2 West Panel From Within A Near Horizontal Borehole Over The Panel Stopline
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Gallant, William D. (1990). Determination Of The Stopline Subsidence Profile Of Phalen 2 West Panel From Within A Near Horizontal Borehole Over The Panel Stopline. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
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Gallant, William D. (1990). Determination Of The Stopline Subsidence Profile Of Phalen 2 West Panel From Within A Near Horizontal Borehole Over The Panel Stopline. Tenth International Conference on Ground Control in Mining Proceedings (ICGCM) 10th
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Organization: International Conference on Ground Control in Mining
Pages: 5
Publication Date:
Jan 1, 1990
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Abstract
Abstract
| This paper presents the results of a joint cooperative research project between the CANMET Cape Breton Coal Research Laboratory and the Cape Breton Development Corporation to observe the subsidence profile over the stopline of 2 West panel, Phalen Mine. A novel technique was designed and Implemented to determine vertical displacements of the overlying strata from within a near horizontal borehole drilled over the 2 West panel. Restrictions on data collection techniques due to the submarine nature of the coalfield are discussed. Development and implementation of the borehole technique using a piezometer and inclinometer Is described. Performance of the instruments and profiles obtained by them are presented and compared. Recommendations for design improvements are made to Improve the efficiency of the technique. |
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