Related Experiment Video
Updated: Mar 11, 2026

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
Published on: September 12, 2019
Centrifuge model study on consolidation characteristics of sand-based fill soil subjected to pulse-induced water
Qiunan Chen1, Xiaodi Xu2, Guanhao Wang2
1Hunan University of Science and Technology, Hunan, China. cqndoc@163.com.
Abstract:
For a sandy fill foundation reinforcement project in Dongguan City, a combined water bag + vacuum preloading method was employed. Centrifugal model tests investigated the behavior of sandy fill foundations under pulsed loading during consolidation, including pore water pressure, earth pressure, settlement, and changes in moisture content and shear strength before and after consolidation. Results were compared with those from water bag + vacuum preloading consolidation tests without pulsed loading. Results indicate that increasing the number of drainage plates significantly enhances settlement reduction and drainage volume while markedly improving soil mechanical properties. Pulsed air pressure effectively fractures silt-clogged soil around drainage plates, thereby consolidating the reinforced soil mass.
Related Concept Videos
Preplaced Aggregate Concrete
Vibrating Concrete
Pumped Concrete
For direct-acting pumps, the concrete enters the pump via the inlet valve under the action of gravity and suction created by the movement of the piston. This concrete is then forced into the pipeline and out through the outlet valve by the forward movement...
Creep in Concrete
Effects of Air-entrainment in Concrete
Porosity in Cement Paste
The balance of water to cement in the mix is...

