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Who formulates the basement flood control standard?
The waterproof design of underground engineering should be accurate in gradation, reliable in measures, appropriate in material selection and economical and reasonable.
Urban underground engineering should be based on the overall planning and rational layout of drainage system to determine the engineering elevation.
The waterproof design of underground engineering should consider the effects of surface water, diving, upper stagnant water and capillary water, as well as the influence of nearby hydrogeological changes caused by human factors, and reasonably determine the waterproof elevation of the engineering.
Underground engineering should adopt waterproof concrete self-waterproof structure, and additional waterproof layer or other waterproof measures can be set according to needs.
Special parts such as deformation joints, construction joints, through-wall pipes (boxes), embedded parts and reserved holes should be strengthened.
Underground trench, floor drain, entrance and exit, window well, etc. Irrigation prevention measures should be taken, and drainage ditches in cold areas should be provided with anti-freezing measures.
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