Porous-medium dynamic water grouting device and method thereof

The invention discloses a porous-medium dynamic water grouting device and a method thereof. The device comprises a grouting device, a pulp inlet chamber, a steel tube, a pulp outlet chamber, a connecting piece and a flow measurement unit. The grouting device is connected with the pulp inlet chamber. The pulp inlet chamber is connected with one end of the steel tube. The other end of the steel tube is connected with the pulp outlet chamber. The connection part of the pulp inlet chamber with the steel tube, and the connection part of the pulp outlet chamber with the steel tube are respectively provided with a filter plate. The steel tube is provided with a pressure sensing unit. The interior of the middle part of the steel tube is provided with a water spraying unit. The water spraying unit is connected with a water inlet tube. The water inlet tube is connected with a water supply unit. The filter plate of the pulp outlet chamber is connected with a screw. The pulp outlet chamber is connected with a pulp outlet tube. The pulp outlet tube is provided with the flow measurement unit. According to the invention, the sidewall influence of the device on the grout diffusion can be eliminated. Meanwhile, by means of a pressure gage and an ultrasonic flow meter, the diffusion parameters of the grout in different conditions of dynamic water parameters can be monitored.