Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Parameters of canals constructed by the crater blasting method
Conclusions 1. Field investigations of canals created by blasting in soils with various physical and mechanical properties established that in cohesive soils a minimum flow velocity occurs as a consequence of the formation of a large mass of coarse aggregates in the zone of back-fallen soil (with a high roughness coefficient). In this case, owing to disturbance of cohesion between individual aggregates, the soils are eroded at a comparatively low flow velocity in the canal. 2. In the subsequent period of canal operation the flow velocity in cohesive soils increases considerably as a result of intensification of the silting effect on the underlying layers, and the rate of erosion decreases noticeably.
Parameters of canals constructed by the crater blasting method
Conclusions 1. Field investigations of canals created by blasting in soils with various physical and mechanical properties established that in cohesive soils a minimum flow velocity occurs as a consequence of the formation of a large mass of coarse aggregates in the zone of back-fallen soil (with a high roughness coefficient). In this case, owing to disturbance of cohesion between individual aggregates, the soils are eroded at a comparatively low flow velocity in the canal. 2. In the subsequent period of canal operation the flow velocity in cohesive soils increases considerably as a result of intensification of the silting effect on the underlying layers, and the rate of erosion decreases noticeably.
Parameters of canals constructed by the crater blasting method
Kushnarev, D. M. (Autor:in)
Hydrotechnical Construction ; 14 ; 910-915
01.09.1980
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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