The invention discloses a floor crack
water pumping device and method. The floor crack
water pumping device comprises a
water pumping pipe which extends into a drilling hole of a floor and is made of a seamless stainless
steel tube, an annular drainage
siphon which is arranged at an exposed end of the water pumping
pipe and connected with the water pumping
pipe through a connector and a valve. A plurality of water pumping holes are formed in the water pumping pipe at intervals, a one-way water-isolating sheet is arranged inside the water pumping pipe, rubber water-blocking rings which contain expanding agents are sleeved on the outer wall of the water pumping pipe at intervals, a
sealant is arranged between the outer wall of the
tail end of the water pumping pipe and the inner wall of the drilling hole, and the annular drainage
siphon which is connected with the water pumping pipe is externally connected with a
servo pump and a
water storage tank. According to the floor crack water pumping device and method, as per a sealing fluid
siphon principle, water in a crack of the floor is drawn out, the floor water is prevented from
softening floor strata, the stability of floor surrounding rocks is improved, meanwhile, the water outgoing quantity is effectively controlled through the valve, the drainage siphon is full of the water all the time, and the air is prevented from entering the drilling hole of the floor and
weathering the strata. The device is simple in structure, low in cost, easy to construct, reliable and effective.