Research on the installation technology of embedded precast pipe segments in deep foundation pit suspensions (1)
A certain underground garage project is designed with a depth of 30 meters and a diameter of 20 meters.
Conventional excavation methods are used, and after excavation, anchor nets are wet sprayed with concrete for initial support.
The excavation is carried out layer by layer until reaching -30 meters.
Then install the steel structure lining segments layer by layer from bottom to top.
After installation, fill the area between the steel structure segments and the initial support holes (hereinafter referred to as the “backfill area”) with concrete for secondary lining.
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