The ACPP technology system has begun to emerge, and the traditional caisson process is rejuvenated – the active control type precast caisson
The ACPP construction method is specifically tailored for soft soil layers, using non draining sinking throughout the entire process.
Like traditional sinking wells, the blade foot is always embedded in the soil layer to a certain height, and the water level in the well is automatically controlled to ensure the balance of internal and external water pressure.
With the addition of a new type of mud sleeve that is automatically injected, it can pass through shallow soft and silty soil layers with almost no settlement without the need for auxiliary foundation reinforcement; The propulsion system has two functions: lifting and sinking, and lowering and sinking.
In the initial sinking stage, the sinking coefficient is generally large, and a suspension sinking mode can be used to ensure complete vertical sinking; The normal sinking stage is changed to excavation pressure sinking cycle, and under normal working conditions, the adaptive thrust and equal stroke control mode can ensure excellent verticality.
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