Abstract: A waterproof clutch for sheet piles is presented wherein at least one of a pair of clutches has a groove in which a seal is housed.

Abstract: Contaminated groundwater is treated in-situ, by funnelling the water through a gate or gates (23) in a watertight in-ground wall (18). Treatment material in the gate (23) breaks down the contaminant, or otherwise removes the contaminant from the flowing water. A removable caisson is first driven into the ground, excavated, and then a receptacle, for the treatment material, is lowered into the hollow interior.

Abstract: The joints between pile-driven sheet metal barrier elements (12, 14) have edge forms which interlock so as to form cavities (20, 21). The cavities extend from top to bottom of the barrier, and allow a flushing hose to be inserted to the foot of the barrier. Sealant is injected when the cavity is flushed clean. Two cavities are provided side by side at each joint. The cavities are independently sealed for extra reliability.

Abstract: A joint/sealing system for interlocked, in-ground barrier members which form an in-ground containment wall, including a "U" shaped gasket (108) interfacing with a longitudinally extended male member (109) to form oppositely directed, double seals using outwardly diverging lips (181/182, 183/184) on the distal ends of the gasket, with the seals being created between at least one side of the male member and at least one leg of two legs (107), which form a female cavity (110) for the male member. The joint includes two, flanking "T" shaped, longitudinal extensions on opposite sides of the male member mating with opposed "T" configured chambers (102') on the adjacent barrier member. The joint elements preferably form an "H" nested within two, opposed "J" shapes. Six exemplary embodiments are disclosed, some single wall and some double walled. The gasket lips typically emanate out from the ends of the "U" shape, but one embodiment (501) has the lips extending out from the sides of the "U" (FIG. 10 ).

Abstract: A bulkhead member for assembling a bulkhead is disclosed, comprising a body having two opposed faces and first and second substantially parallel edges. The first edge includes an integral split socket and the second edge includes an integral connecting bead. At least one of the opposed faces includes a planar surface, and one of the socket and bead is mounted adjacent the planar surface. The connecting bead is angled with respect to the planar surface, and the gap in the split socket is correlatively angled, such that when the bead of the first bulkhead member is lockingly received in the socket of another like bulkhead member, the planar surfaces of the two bulkhead members may be substantially coplanar, and the connecting bead and socket of the two bulkhead members are offset from the common plane of the planar surfaces of the two bulkhead members.

Abstract: A corner adapter for use with corrugated barrier sections is disclosed. The corner adapter provides great freedom of movement in the relative angles between adjacent barrier sections. Further, an inventive cross-section for the corrugated section provides a high strength barrier.

Abstract: A hazardous waste containment system for preventing the lateral migration of hazardous fluid substances (including both liquid and gas wastes) into the water table, particularly for sites which are located over a fluid impermeable strata of clay (20) or the like. The system uses an encircling (FIG. 7) barrier containment wall comprising a plurality of slidingly engaged, interlocked, vertical barrier members (3) which extend down to and sealingly interface with the underlying fluid impermeable strata. The barrier members are slidingly engaged via interlocking male and female appendages (1 & 4), which mate and form a vertically extended chamber (33), in which a fluid impermeable seal (7) is formed.

Abstract: A hazardous waste containment system for preventing the lateral migration of hazardous fluid substances (including both liquid and gas wastes) into the water table, particularly for sites which are located over a fluid impermeable strata of clay (20) or the like. The system uses an encircling (FIG. 7) barrier containment wall comprising a plurality of slidingly engaged, interlocked, vertical barrier members (3) which extend down to and sealingly interface with the underlyng fluid impermeable strata. The barrier members are slidingly engaged via interlocking male and female appendages (1 and 4), which mate and form a vertically extended chamber (33), which a fluid impermeable seal (7) is formed.

Abstract: In a method of securing piling locks in order to transmit thrust, an adhesive is applied between the surfaces of the interlocking halves (1 & 5) of the lock that come into contact with each other in the inside (4) of the lock.

Abstract: A polymeric retaining wall member with interlocking means along its edges that are universally mateable to like members, such that a plurality of like members can be interlocked to form a wall.

Abstract: A coupling mechanism for the interconnection of sealing plates. Symmetrical coupling halves of the sealing plates are interconnected and welded together to form a hollow space that can be checked. Each coupling half has a free edge that is provided with a C-shaped profiled connecting part. That edge of the coupling half where it is attached to a sealing plate is provided with a notch-like part that is symmetrical to the C-shaped connecting part. A sealing strip projects into the hollow space from the transition area between the notch-like part and the adjoining wall. This sealing strip can be welded to the transition area of the cooperating coupling half between the C-shaped connecting part and the adjoining wall thereof.

Abstract: The seawall extends along and retainingly engages the ground and at its top extends above the ground level and at its bottom is projected and anchored down into the ground, below the water level. The seawall includes a series of laterally aligned elongated corrugated bulkhead strips made from a plastic material. Each strip has along one side an undercut grooves edge and along its other side a similarly shaped tongue edge, with the tongue and groove edges of adjacent bulkhead strips interlocked. The strips are of such lightweight that each strip may be lifted and assembled manually relative to an adjacent anchored strip and driven into the ground and into lateral alignment with an adjacent strip and a longitudinal interlock. A cap overlies and is secured upon a bulkhead strip. Spaced anchor strips are embedded into the ground and spaced from the seawall and connected to corresponding bulkhead strips by a series of tie rods and flexible walers.

Abstract: A first portion of the device is suspended by a head from the mounting for an excavator bucket and comprises a first jaw and a guideway. A second portion of the device comprises a second jaw and a slide slidable within the guideway under the control of a hydraulically operated ram. Pins extend from the upper end of the second jaw and can extend through respective holes in sheeting held between the jaws and into respective holes in the upper end of the first jaw. Opposing plates are resiliently mounted on the respective jaws for engagement with the opposite sides of the sheeting. Vibratory means mounted on the second jaw vibrates the plate and thus the other plate and the sheeting therebetween.

Abstract: A system or apparatus for constructing a shoring structure of elongate, interlocking sheet piling members is disclosed which includes a workman support platform controllable by the workman thereon so as to position the workman near the upper end of a vertical piling member partially imbedded or "tacked" in the ground for guiding another piling member hoisted vertically thereabove into interlocking, threading engagement with the previously tacked piling member. A guide for aiding the alignment or threading of the interlocking piling members is disclosed. A method of constructing such a shoring structure is also disclosed.

Abstract: A swimming pool of circular or oval shape constructed of interleaved extruded aluminum panels with water containing liner secured thereto wherein hoop stresses in the pool walls from the water pressure are withstood along the panels and the joints therebetween. The pool walls are constructed from a plurality of interleaved extruded aluminum panels which are constructed so that when a pair of adjacent panels are positioned relative to each other in a first predetermined position, the male and female joint portions can be slid, one within the other with sufficient extra space or play to allow easy insertion and assembly. However, when the two adjacent panels are then rotated to a different angle relative to each other, the play or additional space is taken up and the adjacent panels become locked together in an essentially unitary construction.

Abstract: In an H-shaped steel sheet pile wherein central parts of both side plates are coupled by a coupling plate, an engaging piece is formed at one edge of the side plate and a fitting piece adapted to snugly fit the engaging piece is formed at the other edge in such a manner that they are continuous along the respective edges, and fitting grooves are formed on both surfaces of the coupling plate in a manner to extend in opposition to each other in the lengthwise direction of the coupling plate, to form an H-shaped steel sheet pile (hereinbelow, termed an "AH-shaped steel sheet pile"). Apertures are opposingly provided at required positions of both the side plates of the AH-shaped steel sheet pile, to form an H-shaped steel sheet pile (hereinafter, called a "BH-shaped steel sheet pile").