What is the backfill between the outer wall of the basement and the enclosure?
Backfill should not only consider the structural basis, must consider the nearby hydrological environment, it is best backfill twenty-eight lime or other compact large modified soil, the original soil, etc., there is underground space as much as possible to avoid the use of gravel, Rainwater, domestic water, etc. are constantly gathered around it, it is easy to form a layer of water around it, resulting in the basement leakage, in the event of leakage, processing is very difficult and will have a lot of costs, which many designers are not Understand too much
Application is more use of lime. However, specific projects to be specific, depending on many factors, such as groundwater, whether there is corrosive substances, near the structure requirements and so on.
The basement of the outer wall and the envelope between the backfill sandy soil or sand, not afraid of liquefaction, liquefaction is on the basis of the basement side wall has nothing to do.
