Structural Optimization Design of Ship Lock Heads on Soft Soil considering Time-Varying Effects of the Structure and Foundation

Table 3

Ship lock construction process.

Construction sequence	Construction process	Construction duration (day)	Construction intermissions (day)
C1	Pouring bottom plate	2	8
C2	Removing bottom plate formwork	1	35
C3	Backfilling the first layer of soil	20	96
C4	Pouring the corridor layer	1	10
C5	Removing corridor layer formwork	1	25
C6	Backfilling the second layer of soil	19	26
C7	Pouring the empty-box layer	1	9
C8	Removing empty-box layer formwork	1	53
C9	Pouring the second-stage concrete	1	8
C10	Removing the second-stage concrete formwork	1	20
C11	Backfilling the third layer of soil	18	30