Method of controlling foundation ditch deformation breaking up whole into parts
A technology that can be divided into parts and foundation pits is applied in the field of controlling the deformation of foundation pits and controlling the deformation of foundation pits into parts. Effect
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[0019] 1. Project introduction and surrounding environment
[0020] After a subway station is completed, it will transfer in parallel with another subway station that is already in operation. The maximum distance between the two stations is only 5.4m, and the two stations share the original station structure diaphragm wall at the west end of the head well; the old station is a two-story underground station with an excavation depth of about 14m, while the new station is a three-story underground station with a maximum excavation depth. 22.866m.
[0021] According to the regulations of "Shanghai Metro Foundation Pit Construction Regulations" (SZ-08-2000), the protection level of the foundation pit project of the station is Level 1, that is, the maximum horizontal displacement of the retaining wall is 0.14%H, and the maximum surface settlement is 0.1%H. The maximum excavation depth of the foundation pit is 22.866m, so the maximum horizontal displacement of the retaining wall and...
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