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A platform for research: civil engineering, architecture and urbanism
Tunnel widening -- Diamond drills used for Wyoming job
Unique use of diamond drills for widening three hard rock, unlined Wyoming highway tunnels without interrupting road traffic except for 2 short periods daily; illustrated description of drilling and blasting procedure. (See also Western Construction News v 22 n 7 July 1947 p 88-90)
Tunnel widening -- Diamond drills used for Wyoming job
Unique use of diamond drills for widening three hard rock, unlined Wyoming highway tunnels without interrupting road traffic except for 2 short periods daily; illustrated description of drilling and blasting procedure. (See also Western Construction News v 22 n 7 July 1947 p 88-90)
Tunnel widening -- Diamond drills used for Wyoming job
Explosives Engr
Pierce, R.V. (author)
Explosives Engineer ; 25
1947
Article (Journal)
English
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