1. Used for projects with waterproofing grades of Class 1 and Class 2.
2. Wall construction shall comply with regulations, and the wall surface shall be roughened and cleaned as specified in the design; if necessary, a cement mortar waterproof layer or coating waterproof layer shall be applied before pouring the inner lining concrete.
3. When the composite lining between the diaphragm wall and the inner lining incorporates a plastic waterproof board, appropriate buffer layers and plastic waterproof boards shall be selected according to the drainage conditions, and the relevant provisions hereof shall be followed.
4. The inner lining wall shall be poured with waterproof concrete, and its joints shall be staggered with those of the diaphragm wall. Waterproofing measures for construction joints, deformation joints, and induced joints shall be selected as specified, and their construction requirements shall comply with the relevant provisions of the specifications.