Water jet shield device

The utility model belongs to the technical field of shield tunneling machines, and discloses a water jet shield tunneling device which is used for cutting an underground continuous wall and comprises a shield tunneling main body and two groups of water jet cutter assemblies, a cutter head is arranged at one end of the shield tunneling main body, the two groups of water jet cutter assemblies are symmetrically arranged relative to the axis of the cutter head, and each group of water jet cutter assembly comprises a water jet cutter base and a plurality of high-pressure nozzles. The two water jet cutter bases are both arranged on the cutter head, and each water jet cutter base is provided with a plurality of high-pressure nozzles used for spraying high-pressure water to cut the underground diaphragm wall. Through the combination of the water jet cutter assembly and the shield main body, in the continuous tunneling process of the shield main body in the underground diaphragm wall, the underground diaphragm wall in