Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and cost of mining sand and gravel at farmington (conn.) plant of atlas sand, gravel and stone co
Deposits extend several miles north and south, roughly paralleling Connecticut River lying 10 mi to east; overburden 1 to 3 ft deep; excavating handled with 1 1/4 yd steam shovel with caterpillar traction; transportation, crushing, conveyor system, and washing and screening plant; 49,840 tons sand and gravel mined during 1931; cost data.
Method and cost of mining sand and gravel at farmington (conn.) plant of atlas sand, gravel and stone co
Deposits extend several miles north and south, roughly paralleling Connecticut River lying 10 mi to east; overburden 1 to 3 ft deep; excavating handled with 1 1/4 yd steam shovel with caterpillar traction; transportation, crushing, conveyor system, and washing and screening plant; 49,840 tons sand and gravel mined during 1931; cost data.
Method and cost of mining sand and gravel at farmington (conn.) plant of atlas sand, gravel and stone co
U S Bur Mines -- Information Cir
Dunning, J.S. (Autor:in)
1933
9 pages
Supp plates
Report
Englisch
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