Drainage consolidation method, also known as preloading method, includes preloading method, overload preloading method, vacuum preloading method, combined vacuum and stacking method, groundwater level reduction method and electroosmosis method.
Under the preloading force, the pore water in the soft clay soil is discharged, the soil is consolidated, the pore volume in the soil is reduced, and the soil strength is increased, which reduces the settlement after foundation construction and improves the bearing capacity of the foundation.
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