Device for facilitating the removal of formwork

In combination, a formwork for making an end joint of a panel of a diaphragm wall, and two devices for facilitating removal of said formwork,

• said formwork comprising a soleplate having an outside face, an inside face carrying a box, and two side edges, said box being disposed such that an empty side zone is formed on the inside face of the soleplate adjacent each of said two edges, said soleplate having a defined thickness extending between said outside face and said inside face,
• each of the devices comprising:
• two substantially rectangular plates of substantially the same dimensions, and having first and second longitudinal edges,
• spacer means secured to said first longitudinal edge of each of said plates to hold said plates substantially parallel to each other at a distance h that is substantially equal to the thickness of the soleplate, whereby said plates, said spacer and a plane substantially perpendicular to said plates define a first internal volume, and said plates and said plane define a second open volume,
• filler means disposed within said first volume and made of a material of relatively low strength, said second volume that does not include said filler means being constructed and arranged to receive a side portion of the soleplate, and
• means for temporarily fixing said plates on a side portion of said soleplate.