Sleeve valve type negative pressure moisture absorption system capable of controlling swelling rock tunnel floor heave deformation

The invention discloses a sleeve valve type negative pressure moisture absorption system capable of controlling swelling rock tunnel floor heaving deformation. The sleeve valve type negative pressure moisture absorption system comprises a sleeve valve type grouting pipe, a negative pressure moisture absorption device and a control system. The sleeve valve type grouting pipe is driven into the inverted arch surrounding rock, grout outlet holes are densely distributed in the pipe wall of the sleeve valve type grouting pipe, moisture absorption grout is poured into the pipe, and the moisture absorption grout flows out of the grout outlet holes and permeates into surrounding rock gaps. A plurality of humidity sensors are embedded in the inner wall of the sleeve valve type grouting pipe, the humidity sensors are distributed at intervals in the length direction of the sleeve valve type grouting pipe, and an optical fiber sensor used for measuring strain is further embedded in the sleeve valve type grouting pipe; th