The invention discloses a
water discharge and drainage
system and a construction method adopting a
basement bottom plate water
buoyant force releasing method. According to the
water discharge and drainage
system, crisscross netty water drainage blind ditches are dug in undisturbed soil or overbreak filling below a
basement bottom plate, a continuous plastic protective screen is laid in each water drainage blind
ditch, plastic blind
ditch pipes are buried in the water drainage blind ditches provided with the corresponding plastic protective screens in a laid mode and covered with gravel drainage
layers,
water discharge openings of the plastic blind
ditch pipes communicate with a
water collection well, and the
water collection well is connected with a water
discharge device through a transparent
water pipe; and
polyethylene protective-film partition
slurry layers are laid on the gravel drainage
layers, concrete cushions are poured on the
polyethylene protective-film partition
slurry layers, and the
basement bottom plate is arranged on the concrete cushions. According to the water
discharge and drainage
system and the construction method adopting the basement bottom plate water
buoyant force releasing method, the
water level under the basement bottom plate can be lowered, and the
buoyant force exerted on the basement bottom plate is released and attenuated. Accordingly, the effect that the basement bottom plate is always in the
dynamic equilibrium state can be ensured.