vacuum consolidation Soft ground improvement by vacuum preloading

vacuum consolidation Soft ground improvement by vacuum preloading， soft soil treatment by vacumm preloading

Vacuum consolidation method is a technique of applying vacuum suction to an isolated soil mass to reduce the atmospheric pressure in it, 

thus by the way of reducing the pore water pressure in the soil the effective stress is increased without changing the total stress. By 

improving construction techniques, as well as developing analytical methods for designing, the technique has become an effective and 

economical method for soft ground improvement and capable to conduct in various site conditions. Researches are also extended to other 

application fields such as acceleration dewatering and consolidation of fluid-like materials. Conducting of numerous vacuum consolidation 

projects has been tried in many countries in the world, through that practical experiences are accumulated, which would have significant 

importance in improving its efficacy and advancing the technique. For the purpose of gaining experience, numbers of published documents 

and research papers on vacuum consolidation practice from leading countries in this field of technology have been reviewed. 

vacuum consolidation Soft ground improvement by vacuum preloading