The Influence of Water-Level Fluctuation on the Instability and Seepage Failure of Dump-Fill Cofferdam

Figure 9

Schematic diagram of selection of cofferdam deformation analysis points underwater-level fluctuation: (a) deformation of the backwater slope of the cofferdam; (b) deformation of the interface between outsourcing oil and the filler; (c) vertical section deformation at the top of the cofferdam; (d) vertical section deformation at the horse track.

(a)

(b)

(c)

(d)