A Suggested Method for the Study of Crushed Aggregate Response to Dynamic Compaction [Elektronisk resurs]

• Soil improvement by dynamic compaction has been extensively used all around the world in large civil engineering projects. Limited number of laboratory tests has been conducted to study the behavior of soil material under dynamic loading. A suggested method is presented in this paper which includes a new laboratory apparatus and experimental procedure as well as data analysis. The suggested impact machine is a drop hammer type machine, it can host up to 37.5 mm particle size in a coarse-grained aggregate matrix independent of its conditions, i.e. saturated or unsaturated, it is also flexible in terms of weight and size of the drop hammer and the mold. The machine is equipped with accelerometers for continuous monitoring of the sample’s behavior during impact. The experimental procedure shows the steps for conducting consistent dynamic compaction tests. It also describes how the measurements should be conducted. These measured quantities correspond to key parameters such as density, angle of repose and compaction. Finally, a case example demonstrates the function of the machine and the analysis of the recorded data. 

Ämnesord

Engineering and Technology  (hsv)

Environmental Engineering  (hsv)

Mineral and Mine Engineering  (hsv)

Teknik och teknologier  (hsv)

Naturresursteknik  (hsv)

Mineral- och gruvteknik  (hsv)

Mining and Rock Engineering  (ltu)

Gruv- och Berganläggningsteknik  (ltu)

Indexterm och SAB-rubrik

Dynamic compaction

impact tests

experimental apparatus

soil behavior

confined blasting