Compaction of Soils, Granulates and Powders

D. KOLYMBAS & W FELLIN University of Innsbruck, Institute of Geotechnics and Tunnelling

• Preface 1 Practical applications in engineering; Newest innovations into soil and asphalt compaction technology; Soil improvement by vibro compaction in sandy gravel for ground water reduction; The in-situ densification of granular infill within two cofferdams for seismic resistance; Vibro compaction for the lock Hohenwarthc; 2 Verification of compaction; Field tests before and after blasting compaction; Dynamic testing methods for the stiffness of compacted pavement; Compaction control of a soil improvement with powder columns; Compaction control with a dynamic cone penetrometer; 3 On-line compaction control; Sophisticated roller compaction technologies and roller-integrated compaction control; Quality control in deep vibrocompaction; 4 Quasi static experimental investigations, cyclic loading; Material fabric and mechanical properties after compaction for unbounded granular materials; Soi I compaction by kneading: Comparison of existing methods and proposal of a new laboratory test; Soil compaction by cyclic loading: Ins and outs; Interpretation method of compaction test results on powders; 5 Dynamic experimental investigations; Densification of bulk materials in process engineering; Compaction of loose Oooded granular masses using air pulses; 6 Theoretical approaches; Compaction dynamics of tapped granular matter: A mean field model and its Langevin extension; A minimal model for slow dynamics: Compaction of granular media under vibration or shear; 7 Numerical investigations: Distinct element models, lattice models DEM simulations of uniaxial compression and decompression; Generation and effects of different compacted granular materials within the DEM; Slow relaxation in a diffusional model for granular compaction; 8 Numerical investigations: Continuum models lnfluence of pressure level and stress amplitude on the compaction of granular soils; Senlement of liquefied sand after a strong earthquake; Numerical analysis of a dynamic intensive compaction; Late paper; Experimental investigation of blasting compaction of a cohesionless pit mine fill