High Vacuum Pore Water Pressure Dissipation Study

High Vacuum Compacting Method is a new kind of soft foundation treatment technology,since its invention,has been widely used,multiple coastal geological soft foundation treatment.Geological buried under the sea,most basic super saturation state,the second is confusion,poor soil reclaimed soil clay content.In this article,through project example,the High Vacuum Compacting Method geological burying method to deal with soft foundation,High Vacuum Compacting Method,mainly is the preliminary research content of the following:Firstly,this paper introduces the dynamic compaction method and dynamic drainage consolidation method and treatment of soft foundation reinforcement mechanism,technique characteristics,technological process anddesign parameters.the High Vacuum Compacting Method article discusses the selection and determination of construction parameters including vacuum dewatering time,effective reinforcement depth,dynamic compaction of tamping energy,tamping times,tamping times and intervals.Secondly,the High Vacuum Compacting Method under impact load,pore water pressure change rule research and the analysis of the degree of consolidation of foundation calculation;According to the dynamic and static coupling under the action of foundation consolidation theory,using theoretical derivation of vertical pore water pressure and radial pore water pressure,every time after the dynamic consolidation for calculating the initial points,dissipation of excess pore water pressure in thefoundation is calculated.Thirdly,the use of pore water pressure,underground water level monitoring,static cone penetration test,loading plate test,standard penetration test and other routine test method,the reinforcement process of high vacuum hit arcane Zha and reinforcement effect.Proved that adopting the technology treatment of saturated soft soil can achieve accelerated excess pore water pressure dissipation,improve the strength of the saturated soft soil.