Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Long-boomed backhoe digs deep trench
Open trench, 21 ft wide, 28 ft deep, for concrete sewer in Chicago, Ill, was excavated by 2 1/2 cu yd drag shovel which removed up to 1500 cu yd of excavation in 9 hr shift; boom of shovel is 32 ft, and dipper stick 17 ft long; concrete was placed through metal chute which discharged into flexible elephant trunk tremie to avoid segregation of materials. (See also Eng News-Rec v 145 n 21 Nov 23 1950 p 32-4)
Long-boomed backhoe digs deep trench
Open trench, 21 ft wide, 28 ft deep, for concrete sewer in Chicago, Ill, was excavated by 2 1/2 cu yd drag shovel which removed up to 1500 cu yd of excavation in 9 hr shift; boom of shovel is 32 ft, and dipper stick 17 ft long; concrete was placed through metal chute which discharged into flexible elephant trunk tremie to avoid segregation of materials. (See also Eng News-Rec v 145 n 21 Nov 23 1950 p 32-4)
Long-boomed backhoe digs deep trench
Excavating Engr
Excavating Engineer ; 44
1950
2 pages
Aufsatz (Zeitschrift)
Englisch
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