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A pneumatic caisson is a construction structure used for underwater work or as a foundation. It is similar to an open caisson but features airtight bulkheads. The working chamber below the bulkhead is pressurized to control soil and water inflow, allowing workers to excavate in a dry environment. This method is crucial for building structures like piers, seawalls, and breakwaters where foundations need to be established below the water level. The pressurized air prevents water from flooding the work area, enabling safe and effective excavation and construction.123

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  1. caisson
  2. pneumatic caisson
  3. pier

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