A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Flood prevention in anthracite mines
Project No. 4 deals with concrete lined drainage tunnel 14 ft in diam, with gradient of one ft per mi, designed to connect drainage facilities proposed in Project No. 2 with those proposed in Project No. 3; project No. 5 deals with tunnel 16 ft in diam capable of handling volumes over normal discharge of all mines to be drained by Conowingo tunnel system; estimated costs and construction schedules.
Flood prevention in anthracite mines
Project No. 4 deals with concrete lined drainage tunnel 14 ft in diam, with gradient of one ft per mi, designed to connect drainage facilities proposed in Project No. 2 with those proposed in Project No. 3; project No. 5 deals with tunnel 16 ft in diam capable of handling volumes over normal discharge of all mines to be drained by Conowingo tunnel system; estimated costs and construction schedules.
Flood prevention in anthracite mines
U S Bur Mines -- Bul
Ash, S.H. (author) / Dierks, H.A. (author) / Kennedy, D.O. (author) / Miller, P.S. (author)
1956
23 pages
7 Plates
Report
English
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