Simple removable drainage curtain for inspection and measurement of underwater pile foundations

The invention relates to a simple removable drainage curtain for inspection and measurement of underwater pile foundations. The simple removable drainage curtain comprises hinges, waterproof rubber and thin plates; one end of each thin plate is Z-shaped while the other end is L-shaped, the bottom of each thin plate is provided with a saw blade, and Z-shaped ends and L-shaped ends of each two neighboring thin plates are respectively connected; each hinge is composed of pins, a holed half-hinge body, a holeless half-hinge body and a bolt, the hinge is pluggable, and the holed half-hinge body and the holeless half-hinge body are connected with the bolt to form a revolute pair; holes matched with the bolts is arranged in the plane of the Z-shaped end of each thin plate, and the thin plate is connected with the holed half-hinge body through the bolt and is in glue joint with the holeless half-hinge body on the plane of the L-shaped end of each neighboring thin plate. The simple removable drainage curtain has the a