Blasting in Ground Excavations and Mines by B. Singh, P. Pal Roy, R. B. Singh, A. Bagchi, M. M. Singh

By B. Singh, P. Pal Roy, R. B. Singh, A. Bagchi, M. M. Singh

Discussing blasting in floor excavations and mines, this article covers simple rules, traditional innovations, major variables, optimal layout points, ameliorations of a few actual suggestions within the context of mine and floor excavations.

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9274 10,16 11,24 9,14 10,20 ! 0 2 ' 6 ]heptane 50 11,18 M. , °C. , Table A B. , °C. at 760 mm. 518110? 4969 11,24 ! 877816 M. , °C. 5) . P . , 175 1 B. , °C. at 760 mm. 765 21 . 486819-9 10,20 M. , °C. 9181 1 ? 375 able A B. , °C. at 760 mm. 455)25 M. , °C. 7696 . 9 1 B. , °C. at 760 mm. 849911 10,16 ! 1] -2-heptene 3,5-Dimethylheptane 2-Methyl-6-ethyloctane 2,2,3,3-Tetramethylheptane 2,4-Dimethyl-3-isopropylhexane Penty lcyc lopentane 3,5 -Dimethy lnonane 2,2,3,3,4,4-Hexamethylpentane 3,6-Dimethy lnonane 2,3,5-Trimethyl-4-ethylhexane Buty lcyc lohexane 3-Methyl-6-ethyloctane nD M.

C. at 760 mm. 463618-* > 87 1 2i 8 . 8450}! 4544 . 1] 2-heptene 3-Butylcyclopentene l-Methyl-trans-2 -ethyleye lohexane 3,4,5,5-Tetramethyl-2-hexene (low-boiling isomer) 1,4-Nonadiene 3-Methylene-l,5-dimethylcyclohexene 1,2,3-Trimethylcyclohexene 5-Methyl-l -ethylcyclohexene 2 - Cy clopr opyl - 2 -hexene (low-boiling isomer) 40 10,20 n M. , °C. 9 Table A B. , °C. at 760 mm. 1] heptane 2-Cyclopropyl-2-hexene (high-boiling isomer) 2,2,4,4-Tetramethylhexane 4,5-Dimethyl-2,6-octadiene 4-Methyl-l-ethylcyclohexene l,cis-2-Diethylcyclopentane 3,4-Dimethyl-2-ethyl-l,3hexadiene 2,4,4,5-Tetramethyl-2-hexene 3,6-Dimethyl-2,6-octadiene l-Methyl-cis-3-ethynylcyclohexane Ally ley c lohexane sec -Butylcyclopentane 5-Methyl-3-ethyl-2,4-heptadiene 2,4-Dimethyl-4-octene 3,7 -Dimethyl-1 -octene 2,5-Dimethyl-4-octene Isopropylcyclohexane 2,2,3,4-Tetramethylhexane C, H 71 20 d24° M.

C. 5 B. , °C. at 760 mm. 9274 10,16 11,24 9,14 10,20 ! 0 2 ' 6 ]heptane 50 11,18 M. , °C. , Table A B. , °C. at 760 mm. 518110? 4969 11,24 ! 877816 M. , °C. 5) . P . , 175 1 B. , °C. at 760 mm. 765 21 . 486819-9 10,20 M. , °C. 9181 1 ? 375 able A B. , °C. at 760 mm. 455)25 M. , °C. 7696 . 9 1 B. , °C. at 760 mm. 849911 10,16 ! 1] -2-heptene 3,5-Dimethylheptane 2-Methyl-6-ethyloctane 2,2,3,3-Tetramethylheptane 2,4-Dimethyl-3-isopropylhexane Penty lcyc lopentane 3,5 -Dimethy lnonane 2,2,3,3,4,4-Hexamethylpentane 3,6-Dimethy lnonane 2,3,5-Trimethyl-4-ethylhexane Buty lcyc lohexane 3-Methyl-6-ethyloctane nD M.

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