通过比较可知，真空预压法有着处理深度大，成本较低，工期适中，非常适合本

It can be seen from the comparison that the vacuum preloading method has a large processing depth, low cost, and a moderate construction period, which is very suitable for the foundation treatment of this site. In order to further increase the preload, and increase the construction settlement as much as possible, vacuum preloading can be used in combination with the layered rolling method to further improve the density and bearing capacity of the surface fill. <br>In view of the engineering geological conditions of this project, in line with the principle of "adapting to local conditions and economically reasonable", we recommend the use of "vacuum water combined combined preloading + impact rolling combined technology" composite foundation treatment method based on the drainage consolidation method, and according to The characteristics of each zone adopt different construction methods and parameters to make the site meet the design requirements.

Through comparison, it can be seen that the vacuum pre-pressure method has a large processing depth, low cost, moderate duration, very suitable for the site's foundation treatment. In further improving the pre-pressurized load, as much as possible to increase the construction subsidence, vacuum pre-pressure can be used, and combined with layered crushing method to further improve the surface filling soil density and carrying capacity.<br>In view of the engineering geological conditions of this project, in line with the principle of "local conditions, economic rationality", we recommend the use of "vacuum water-borne joint pre-pressure-impact combined technology" based on the drainage cementing method of the composite foundation treatment method, and according to the characteristics of each division using different construction methods and construction parameters, so that the site to meet the design requirements.

It can be seen from the comparison that the vacuum preloading method has the advantages of large treatment depth, low cost and moderate construction period, which is very suitable for the foundation treatment of the site. In order to further improve the preloading load and increase the construction settlement as much as possible, the vacuum preloading can be used, and the layered rolling method can be combined to further improve the compactness and bearing capacity of the surface fill.<br>According to the engineering geological conditions of the project and the principle of "local conditions, economic and reasonable", we recommend the composite foundation treatment method based on the drainage consolidation method of "vacuum water load combined precompression + impact rolling combined technology", and adopt different construction methods and construction parameters according to the characteristics of each zone, so as to make the site meet the design requirements.<br>