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A method for installing thin-walled sealing elements in the fabrication of slotted walls in the soil. The thin-walled sealing elements are plastic foils with vertical connecting elements at the vertical edges. A connecting slot is flushed out between a newly made slotted-wall section and the interio

A method for installing thin-walled sealing elements in the fabrication of slotted walls in the soil. The thin-walled sealing elements are plastic foils with vertical connecting elements at the vertical edges. A connecting slot is flushed out between a newly made slotted-wall section and the interior of the adjacent slotted connecting tube of the previously installed sealing element. The slot and the interior of the connecting tube are filled with a support suspension. Then a new sealing element is threaded through the filled connecting slot into the previously installed connecting tube.

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A method for fabricating a vertical barrier in the soil, comprising the steps of: excavating in the soil a hole in the form of a first vertically oriented slot, said slot being contiguous with a previously formed slotted wall section; forming a second vertically oriented slot of smaller width than s

A method for fabricating a vertical barrier in the soil, comprising the steps of: excavating in the soil a hole in the form of a first vertically oriented slot, said slot being contiguous with a previously formed slotted wall section; forming a second vertically oriented slot of smaller width than said first vertically oriented slot and extending therefrom through a hardening wall mass of said previously formed slotted wall section to a slotted connecting tube attached along a vertical edge of a first planar sealing element disposed in said hardening wall mass of said previously formed slotted wall section; filling said first and said second vertically oriented slot with a support suspension; placing a second planar sealing element into the suspension in said first and said second vertically oriented slot, said step of placing including the step of introducing a plug connection disposed along a vertical edge of said second planar sealing element into said slotted connecting tube; and forming a hardened wall mass in said first vertically oriented slot.