The invention discloses a water drainage device and method for increasing the water drainage and consolidation speed of filled
sludge. The water drainage device comprises a water drainage
system, a negative pressure device and a
sewage treatment device. The water drainage
system is fixedly connected to the two sides of the negative pressure device through
backflow pipes. The negative pressure device is connected with the
sewage treatment device through a booster
pipe. The
sewage treatment device comprises a
sewage treatment box. A separating cavity and storage cavities are formed in the
sewage treatment box. First filter screens are arranged between the separating cavity and the storage cavities. A stirring mechanism is arranged in the separating cavity. A
sedimentation basin is arranged at the bottom of the
sewage treatment box. The water drainage method comprises the steps of construction preparation, foundation pit measurement, drainage
system arrangement, filling construction, top layer construction and construction acceptance check. By the adoption of the water drainage device and method for increasing the water drainage and consolidation speed of the filled
sludge, the arrangement scheme of a water drainage system is simplified, the water drainage and consolidation speed of the filled
sludge is effectively increased, the strength and stability of the sludge in a whole foundation pit are improved, and the project quality is improved; and meanwhile, the separated water and sludge can be recovered, and resources are saved.