A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strata control and influence on underground and surface damage
Damage arising from mining subsidence; importance of observations made ahead of working face by means of underground galleries; selective protection is possible by siting of working faces or by harmonic extraction; complete extraction with extremes varying from solid stowing to caving are discussed; methods of face support by use of rigid waste edge chocks, rigid or yielding props. (See also Colliery Guardian v 183 n 4731 Nov 1 1951 p 493-9; (discussion) n 4732 Nov 8 p 523-31; Instn Min Engrs -- Trans v 111 pt 7 Apr 1952 p 445-62; discussion p 463-75)
Strata control and influence on underground and surface damage
Damage arising from mining subsidence; importance of observations made ahead of working face by means of underground galleries; selective protection is possible by siting of working faces or by harmonic extraction; complete extraction with extremes varying from solid stowing to caving are discussed; methods of face support by use of rigid waste edge chocks, rigid or yielding props. (See also Colliery Guardian v 183 n 4731 Nov 1 1951 p 493-9; (discussion) n 4732 Nov 8 p 523-31; Instn Min Engrs -- Trans v 111 pt 7 Apr 1952 p 445-62; discussion p 463-75)
Strata control and influence on underground and surface damage
Iron Coal Trade Rev
Webster, N.E. (author)
1951
6 pages
Article (Journal)
English
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