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Foundation problems complicate construction of Calderwood dam
Procedure in preparing dam foundations and in driving 26 1/2 ft. penstock tunnel through solid rock; fault in rock under east abutment tunneled out underneath abutment concreting operations and afterwards concreted through pipes left in abutment concrete; center drifting and ring-blasting methods used in penstock tunnels; surge shaft, 18-ft. in diam., rises from main tunnel at head of penstocks through solid rock on 51 deg. slope.
Foundation problems complicate construction of Calderwood dam
Procedure in preparing dam foundations and in driving 26 1/2 ft. penstock tunnel through solid rock; fault in rock under east abutment tunneled out underneath abutment concreting operations and afterwards concreted through pipes left in abutment concrete; center drifting and ring-blasting methods used in penstock tunnels; surge shaft, 18-ft. in diam., rises from main tunnel at head of penstocks through solid rock on 51 deg. slope.
Foundation problems complicate construction of Calderwood dam
Eng. News-Rec
Engineering News-Record ; 105
1930
4 pages
10 Figs.
Article (Journal)
English
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Foundation problems complicate construction of Calderwood dam
Engineering Index Backfile | 1930
| Engineering Index Backfile | 1931
| Engineering Index Backfile | 1934
| Engineering Index Backfile | 1935
| ASCE | 2021