Divers should wear the GF-Ⅱ type ventilated heavy-duty gear and be equipped with...

Appropriate auxiliary equipment includes professional ropes for divers' ascents and descents, and a professional walkie-talkie is used during operations to maintain communication between the surface and the divers to ensure safety.

2. Conduct continuous H2S and carbon monoxide testing throughout the construction process. The diving team must strictly adhere to the responsibilities of diving positions and strictly enforce the eight safety rules for diving operations.

3. Divers must be certified before performing underwater operations. A safety technical briefing must be conducted prior to construction to ensure a clear understanding. The diving team must strictly adhere to the temporary regulations for safety management in toxic and harmful gas environments issued by the Water Affairs Bureau and Drainage Department.

4. Diving equipment must undergo rigorous pre-dive inspections and be deemed fit for use before entering the water. The construction site should be equipped with emergency air sources and emergency equipment.