1. After constructing guide walls on both sides of the longitudinal axis of the underground continuous wall, dig the trench in sections.
2. Prepare high-quality mud and inject it into the trench section to protect the wall.
3. After the trench is formed, install the prefabricated steel cage in the trench section.
4. Use the conduit back-up method to pour underwater concrete to form the wall.
5. Adjacent wall sections are connected in the form of joints to form an integral cast-in-place reinforced concrete continuous wall.
