Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prospects for the use of heavy-duty dual-mass tampers for the compaction of soils
Conclusions 1. It is expedient to increase the weight of a tamper with given lower-surface dimensions and drop height to a certain limit, the excedence of which may lead to the development of shear strains and, correspondingly, to heaving and loosening of the soil around the tamper without a significant increase in the effect of its compaction outside the bounds of this zone. 2. In many cases, the weights of the single-mass tampers employed at the present time exceed those limiting values for which heaving and loosening of the surface layer of the soil is possible. In cases where dual-mass tampers are employed, the probability of the development of soil heaving and loosening is significantly reduced. The volume of tamped-in soil is 25–30% higher for a dual- than a single-mass tamper. 3. At a drop height of 8–10 m and 6–8 blows, a heavy-duty 10-ton dual-mass tamper may compact saturated sands at a depth of 4.5–5.5 m to a dense composition.
Prospects for the use of heavy-duty dual-mass tampers for the compaction of soils
Conclusions 1. It is expedient to increase the weight of a tamper with given lower-surface dimensions and drop height to a certain limit, the excedence of which may lead to the development of shear strains and, correspondingly, to heaving and loosening of the soil around the tamper without a significant increase in the effect of its compaction outside the bounds of this zone. 2. In many cases, the weights of the single-mass tampers employed at the present time exceed those limiting values for which heaving and loosening of the surface layer of the soil is possible. In cases where dual-mass tampers are employed, the probability of the development of soil heaving and loosening is significantly reduced. The volume of tamped-in soil is 25–30% higher for a dual- than a single-mass tamper. 3. At a drop height of 8–10 m and 6–8 blows, a heavy-duty 10-ton dual-mass tamper may compact saturated sands at a depth of 4.5–5.5 m to a dense composition.
Prospects for the use of heavy-duty dual-mass tampers for the compaction of soils
Minaev, O. P. (Autor:in) / Savinov, O. A. (Autor:in)
1990
Aufsatz (Zeitschrift)
Englisch
Lokalklassifikation TIB:
770/6545/8000
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
Compaction of foundation soils by heavy tampers
| Online Contents | 1965
Soil compaction and use of tampers
| Engineering Index Backfile | 1947
Change of the deformative characteristics of loess soils during compaction by heavy tampers
| Online Contents | 1972
DYNAMIC COMPACTION TAMPERS WITH LOW VIBRATION AND HIGH EFFICIENCY
Europäisches Patentamt | 2024