A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Items requiring consideration in underground clay mining
Two systems, "advancing" and "retreating system" of operating usual method of clay mining called room and pillar work are considered; details incident to mining, such as concentration of working area, frequent mapping of survey, haulage ways, room necks, pillars, and timbering are discussed.
Items requiring consideration in underground clay mining
Two systems, "advancing" and "retreating system" of operating usual method of clay mining called room and pillar work are considered; details incident to mining, such as concentration of working area, frequent mapping of survey, haulage ways, room necks, pillars, and timbering are discussed.
Items requiring consideration in underground clay mining
Am. Ceramic Soc. -- Jl
Hearing, R.H. (author) / Tefft, C.F. (author)
1927
5 pages
4 Figs.
Article (Journal)
English
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| Engineering Index Backfile | 1929
| Engineering Index Backfile | 1931
Online Contents | 2008
Underground mining at Dragonby
| Engineering Index Backfile | 1956