Component to be employed in the constructiion of walls poured in the ground, wall incorporating such a component, and method of constructing such a wall

DETAILED DESCRIPTION I claim: 1.
A method of constructing an impermeable wall cast in the ground, comprising the steps of digging in the ground a trench having an excavation side and a ground side, positioning in the trench next to each other at least two prefabricated concrete components having each a sheet of impermeable material that covers fully one side of said component, with said sheet positioned on the excavation side of the trench, said sheet having its side opposite to said excavation side comprising projections cast into said concrete component, fixing said components in said trench, excavating said excavation side of the trench to expose said impermeable sheets, and interconnecting impermeably said impermeable sheets of two adjacent components.
2.
A method according to claim 1, in which said interconnecting impermeably said impermeable sheets of two adjacent components is achieved by bonding a strip of impermeable material to the adjacent edges of said sheets.




Description:
One object of the invention is a prefabricated concrete component to be employed in the construction of walls poured in the ground.
Many methods of constructing walls poured in the soil are known in which the prefabricated components of the walls are for example sealed inside a trench to form adjacent panels, the soil to one side of the trench, called the excavation side, being subsequently excavated while the soil to the other side is left in place, where it is held back by the resulting wall.
It is often important and sometimes even essential that such walls be impermeable, which entails the problem of the tightness of the joint between two panels.
Different solutions to this problem, like that in French Pat.
No.
76.
25673 for example, have already been proposed.
They generally employ a flexible device called a water stop to join two adjacent panels.
In horizontal section, such water stops are shaped like a dumbbell with expanded ends that fit into appropriately shaped grooves in the component slab