Novel milling joint device for pile wall combined type enclosure structure

The utility model provides a novel pile wall combined type enclosure structure milling joint device which comprises a round groove section which is drilled, a pile casing is embedded in the upper portion of the round groove section, a steel reinforcement cage is placed in a hollow structure of the round groove section, and isolation plates which are reserved with downward guide grooves when concrete is poured are arranged on the two sides of the steel reinforcement cage. A clamping groove integrally formed in the upper portion of the isolation plate is buckled with the edge of the pile casing, the face, facing the reinforcement cage, of the isolation plate is a flat and straight face, and a guide groove is formed after concrete is poured into the reinforcement cage in the circular groove section and the isolation plate is pulled out after initial setting of the concrete. When a cast-in-place pile is poured, downward guide grooves are reserved in the two sides of the cast-in-place pile, in this way, when a con