Mechanical Performance of Deep Circular Caisson Sinking in Deep Layered Soft Soil

Table 3

Subdivision and subdivision of open caisson (unit: m).

Production layering	Fabrication height	Total height of layers	Sinking process	Sinking height	Remarks
First	5.50	16.2	Drainage subsidence	15	Sinking elevation + 0.9 to −14.1
Second	6.20
Third	4.5
Fourth	3.87	16.22	Undrained subsidence	17.2	Final settlement elevation −31.52
Fifth	6.4
Sixth	5.95