Underground diaphragm wall supporting structure

The utility model provides an underground diaphragm wall supporting structure. The utility model belongs to the technical field of constructional engineering, the supporting structure is fixedly installed on the supporting plate face, the supporting plate face comprises a supporting steel plate, connecting grooves, installing bases and fixing plates, the connecting grooves are formed in the edgesof the two sides of the supporting steel plate, the installing bases are welded and fixed to the middle of the top of the supporting steel plate, and the fixing plates are welded to the surface of themiddle of the supporting steel plate and provided with holes in a penetrating mode. An inclined rib plate and a hydraulic jack are arranged in the device; the inclined rib plates are in a right triangle shape and can support the bottom of the wall, the hydraulic jacks extrude oppositely to form outward supporting force on the wall, a firm supporting body is formed in the underground diaphragm wall after the inclined rib p