The Research Of Vacuum-surcharge Preloading

With the development of economic in the coastal areas in our country,such as the construction project on the rise and land resources increasingly tight,so produce land form sea and sea reclamation have become an important means of alleviate the shortage of land and promote economic development.The costal areas due to poor soil conditions,the distribution of a wide range of deep soft soil,mainly mud ane silt soil,the soil has a high water content,poor permeability,low strength,porosity,low density and a certain amount of structural.ts distribution is often uneven and low lying,need to fill a large area,the substation to the ground treatment has brought more difficulties,There are many ways to deal with the current soft ground,pre-vacuum pressures is weak foundations to deal with one of the more effective way,because the method combine the advantagees of vacuum preloading and surcharge preloading,it is applied widely.(1)?Through related data collection in the country and abroad,introduces the research status of vacuum-surcharge preloading method and related theory,and the theory on the reinforcement mechanism of vacuum-surcharge preloading and the construction technology were further elaborated and summarized.(2)?According to the engineering geological conditions,Vacuum Stack preloading works deal with the scene using a variety of methods for monitoring:Vacuum Combined Loading of surface subsidence changes in pore water pressure changes,stratified subsidence and groundwater level changes,and the monitoring data production related maps for analysis.