Underground diaphragm wall circular lock catch embedded part isolation protection structure and technology

The invention relates to an underground diaphragm wall circular lock catch embedded part isolation protection structure and process, the underground diaphragm wall circular lock catch embedded part isolation protection structure comprises a circular lock catch embedded part, a filling water bag, a connecting steel plate, a spoiler steel plate, an underground diaphragm wall reinforcement cage and a sandbag, the circular lock catch embedded part and the underground diaphragm wall reinforcement cage are welded and fixed through the connecting steel plate, and the filling water bag is arranged in the circular lock catch embedded part; the spoiler steel plates are welded to the two sides of the connecting steel plate, and the sandbag isolates the circular lock catch embedded part. The filling water bag is arranged in the circular lock catch embedded part, it is guaranteed that no cement paste leaks in the circular lock catch embedded part, no caking is filled, and the outer portion of the circular lock catch embed