A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ground Motions From Vibratory Roller Compaction of Cohesive Soil
A field test was conducted to obtain information concerning the compaction characteristics of a vibratory sheepsfoot roller when used in constructing an embankment of cohesive soil. As a part of the test, the magnitude of ground motions produced by the vibratory roller was measured. Measurements were obtained by installing triaxial sets of accelerometers in the embankment as construction progressed; 5 sets of accelerometers were installed. Measurements were obtained over horizontal distances of 0 to 50 ft and depths ranging from about 2.0 to 22.5 ft. Results indicated that: relatively high ground motions were produced in the immediate vicinity of the roller, with accelerations exceeding 1g up to a depth and distance of 5 ft from the roller; vibrations were directional, with the vertical components to the front of the roller being 2 to 3 times greater than those to the side; higher ground motions were produced by the roller when stationary than when moving; the magnitude of the ground motions appeared to depend on the moisture content of the soil directly beneath the roller; the phenomenon of 'beating' occurred when 2 rollers were operated near each other; and based on available damage criteria, the risk of damage should be considered when the roller is operated near structures. (Author)
Ground Motions From Vibratory Roller Compaction of Cohesive Soil
A field test was conducted to obtain information concerning the compaction characteristics of a vibratory sheepsfoot roller when used in constructing an embankment of cohesive soil. As a part of the test, the magnitude of ground motions produced by the vibratory roller was measured. Measurements were obtained by installing triaxial sets of accelerometers in the embankment as construction progressed; 5 sets of accelerometers were installed. Measurements were obtained over horizontal distances of 0 to 50 ft and depths ranging from about 2.0 to 22.5 ft. Results indicated that: relatively high ground motions were produced in the immediate vicinity of the roller, with accelerations exceeding 1g up to a depth and distance of 5 ft from the roller; vibrations were directional, with the vertical components to the front of the roller being 2 to 3 times greater than those to the side; higher ground motions were produced by the roller when stationary than when moving; the magnitude of the ground motions appeared to depend on the moisture content of the soil directly beneath the roller; the phenomenon of 'beating' occurred when 2 rollers were operated near each other; and based on available damage criteria, the risk of damage should be considered when the roller is operated near structures. (Author)
Ground Motions From Vibratory Roller Compaction of Cohesive Soil
D. A. Tiedmann (author)
1970
29 pages
Report
No indication
English
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