VACUUM PRELOADING METHOD WITHOUT DRAIN SAND CUSHION LAYER

摘要

A vacuum preloading method without drain sand cushion layer comprises the following steps: 1) installing drainage plates (1) in a style of quincuncial piles in a treatment site; 2) arranging a horizontal drainage system in one of two paving manners for replacing a middle rough sand cushion used in traditional vacuum preloading construction; 3) connecting a main pipe of the horizontal drainage system to a vacuum device (3), and carrying out vacuum pumping construction after a film (10) is paved.