A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Failure of concrete shaft linings at Pennsylvania bituminous coal-mines
Study of conditions in both successful and failed linings brings conclusion that concrete lining practice may be improved by: sufficient drainage behind lining to relieve natural water pressure from rock strata and prevent water from penetrating concrete; mixture being uniformly as dense as possible; pouring mixture in forms with equipment that does not require water beyond that needed for proper mixing; etc. (See also - discussion p 69-99)
Failure of concrete shaft linings at Pennsylvania bituminous coal-mines
Study of conditions in both successful and failed linings brings conclusion that concrete lining practice may be improved by: sufficient drainage behind lining to relieve natural water pressure from rock strata and prevent water from penetrating concrete; mixture being uniformly as dense as possible; pouring mixture in forms with equipment that does not require water beyond that needed for proper mixing; etc. (See also - discussion p 69-99)
Failure of concrete shaft linings at Pennsylvania bituminous coal-mines
Engrs.' Soc. West. Pa. -- Proc
Alford, N.G. (author)
1926
8 pages
1 Fig.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Fire fighting facilities at four Pennsylvania bituminous-coal mines
| Engineering Index Backfile | 1949
Reinforced concrete shaft linings
| Engineering Index Backfile | 1909
Drainage from bituminous coal mines
| Engineering Index Backfile | 1954
Bituminous coal fields of Pennsylvania
Engineering Index Backfile | 1932
Tunnel linings with precast concrete blocks for underground coal and metal mines
| Engineering Index Backfile | 1937