초록 ▼

According to the invention, to connect sealing strips overlapping one another which are located in a trench in the ground. A housing is placed at the overlap region which spans this region and seals the region. Next the housing is pumped empty of a filling agent, such as bentonite which is used to s

According to the invention, to connect sealing strips overlapping one another which are located in a trench in the ground. A housing is placed at the overlap region which spans this region and seals the region. Next the housing is pumped empty of a filling agent, such as bentonite which is used to stabilize the trench. The overlap region is then cleaned for welding, and can then be welded by means of commercially available welding equipment.

대표청구항 ▼

Method for use in an underground trench containing a slurry material, said method being for preparing for fastening of sealing strips placed in the underground trench, the underground trench having contained therein at least the slurry material for stabilizing the walls of the underground trench, sa

Method for use in an underground trench containing a slurry material, said method being for preparing for fastening of sealing strips placed in the underground trench, the underground trench having contained therein at least the slurry material for stabilizing the walls of the underground trench, said method comprising the steps of: (a) digging an underground trench; (b) at least partially filling the underground trench with a slurry material therein; (c) lowering housing means into the slurry in the underground trench; (d) lowering sealing strips vertically into the underground trench to locate the edges of adjacent strips in position to join adjacent edges of the adjacent strips to one another; (e) placing said housing means on both sides of the sealing strips adjacent at least one of the adjacent edges of the adjacent strips to be joined; and (f) pumping out the slurry material from within said housing means.