Abstract: A sheet piling filler-corner member includes one or more female couplings for engagement of male couplings of connected sheet pilings, and one or more male coupling members for engagement within female couplings of connected sheet pilings. Selective attachment of sheet pilings using the filler-corner member, and/or modification of the filler-corner member into different configurations allows the filler-corner member to universally function as a spacer or filler for adding length to a sheet piling assembly, as a corner coupling, or as a gender-change adapter between sheet pilings.

Abstract: A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.

Abstract: A method of disassembling a combined steel sheet pile in which a steel sheet pile and an H-shaped steel are joined to each other, in which, when viewed in a cross-section perpendicular to a longitudinal direction, in a weld zone formed by a fillet weld, the weld zone is cut off to leave a portion on a side which is closer to the steel sheet pile than a throat depth surface, and thereby the combined steel sheet pile is disassembled into the steel sheet pile and the H-shaped steel.

Abstract: The present invention provides a hat-type steel sheet pile whose economic efficiency, workability, and integrity are all optimized. In the hat-type steel sheet pile according to the present invention, web portions are continuously formed at both ends of an upper flange portion, and lower flange portions are formed at respective end portions of a pair of web portions. A relationship among geometrical moment of inertia I per 1 m of wall width (cm4/m) when forming a steel sheet pile wall, weight per unit wall area W (kg/m2), penetration resistance R, and web angle ? (°) is set to satisfy one of several expression groups.

Abstract: A sheet piling wall includes a plurality of polymer corrugated sheet piles, such as vinyl sheet piles, connected together to form an corrugated wall structure having a front surface and a back surface. A plurality of blocks are adhesively secured to the back surface of the wall structure. Each block includes a fastener that is fastened to a bracket that is welded to a support bar extending horizontally behind the back surface. The support bar can be anchored to solid ground by use of tie back rods and an earth anchorage system.

Abstract: The present invention provides a hat-type steel sheet pile whose economic efficiency, workability, and integrity are all optimized. In the hat-type steel sheet pile according to the present invention, web portions are continuously formed at both ends of an upper flange portion, and lower flange portions are formed at respective end portions of a pair of web portions. A relationship among geometrical moment of inertia I per 1 m of wall width (cm4/m) when forming a steel sheet pile wall, weight per unit wall area W (kg/m2), penetration resistance R, and web angle ? (°) is set to satisfy one of several expression groups.

Abstract: A steel material for an underground continuous wall equipped with a hat type steel sheet pile having a hat-shaped cross-section, and an H-beam having an H-shaped cross-section, wherein: the hat type steel sheet pile includes a web, a pair of flanges, and a pair of arm sections; the H-beam includes a pair of flange sections and a web section; an outer surface of the H-beam is secured to an outer surface of the web; the length of the H-beam is shorter than that of the hat type steel sheet pile, and an overall length of the H-beam is arranged within the length of the hat type steel sheet pile; and a rear end of the H-beam is located closer to a forward end side than a rear end of the hat type steel sheet pile.

Abstract: A vibratory pile driver configured to insert curved sheet pile beneath a conduit by rotating the pile driver about a fixed pivot element to advance the curved sheet pile along a fixed arc. In one exemplary embodiment, the distance between the fixed pivot element and the clamps that secured the curved sheet pile to the pile driver is the same as the radius of curvature of the curved sheet pile. In another exemplary embodiment, when the curved sheet pile is secured to the pile driver by the clamps, the center of the radius of curvature of the curved sheet pile lies substantially on the rotational axis of the fixed pivot element. In this embodiment, the vibratory pile driver may be rotated about the fixed pivot element to advance the curved sheet pile along an arc having curvature substantially identical to the radius of curvature of the curved sheet pile.

Abstract: An object of the invention is to provide a retaining wall and a construction method therefor whereby fixation between a steel sheet pile wall and a formwork panel to form the retaining wall is made easy, and can be reliably made, so that construction schedule reduction is achieved. The retaining wall is composed of steel sheet piles 100 driven in the ground preliminarily, a formwork panel 201 fixed in close contact with a face of the steel sheet piles 100 opposite to a ground region, and a formwork panel 202 vertically provided at a position facing the formwork panel 201. The formwork panels 201 and 202 are vertically provided on runners 204 fixed preliminarily to the ground by screws 203, and have caps 205 on their tops to maintain horizontal states and linear states of the formwork panels 201 and 202.

Abstract: The hot-rolled straight-web steel sheet pile comprises a straight web delimited on each longitudinal side respectively by an interlock strip. The web has a rolled-in taper which is designed in such a way that, in a tensile test of two samples from this sheet pile which are connected by means of their interlock strips, the web is deformed plastically in the region of this taper before a failure of the interlock connection can occur. The rolling of such a sheet pile, which is distinguished in cellular cofferdams by a high plastic deformation capacity, can take place by means of slightly modified standard rolls and consequently requires no major investment.

Abstract: A steel sheet pile in double-T form includes a web and two flanges, in which each flange has an inner side facing the web, an outer side facing away from the web, and two longitudinal edges, and also coupling means for a connection profile along at least one longitudinal edge of at least one flange. In a first embodiment, the coupling means are formed by a groove which extends in the outer side of at least one flange along at least one longitudinal edge.

Abstract: An apparatus and method for the subterranean support of underground conduits is disclosed, including a pile driver that is configured to connect to an articulated boom of an excavator or another unit of positioning machinery to insert a section of curved sheet pile beneath a conduit. In one exemplary embodiment, the pile driver has a head portion and a body portion. The head portion of the pile driver is connected to the excavator and the body portion of the pile driver is moveable relative to both the head portion of the pile driver and the excavator to allow the pile driver to properly orient a section of curved sheet pile for insertion into subterranean material beneath an underground conduit.

Abstract: A sheet piling wall includes a plurality of polymer corrugated sheet piles, such as vinyl sheet piles, connected together to form an corrugated wall structure having a front surface and a back surface. A plurality of blocks are adhesively secured to the back surface of the wall structure. Each block includes a fastener that is fastened to a bracket that is welded to a support bar extending horizontally behind the back surface. The support bar can be anchored to solid ground by use of tie back rods and an earth anchorage system.

Abstract: In one exemplary embodiment, the present invention includes a plurality of individual curved sheet piles that are positioned beneath an underground conduit, such as a raceway, to support the conduit during excavation. In one exemplary embodiment, the individual sections of curved sheet pile are interfit and/or interconnected. This allows the individual sections to work in combination with one another to support the conduit. Specifically, opposing ends of a length of interfit and/or interconnected curved sheet piles extend into unexcavated soil on both sides of an excavated hole to form a bridge across the hole that supports the conduit and any soil or other subterranean material positioned above the curved sheet pile.

Abstract: In one exemplary embodiment, curved sheet pile is driven underneath an existing conduit using a pile driver guided hydraulically by an excavator or other heavy machinery. By vibrating the curved sheet piles, the soil is placed in suspension, which allows the piles to be directed through the soil along an arcuate path that has a curvature that substantially matches the radius of curvature of the piles. Once the pile is positioned as desired, each individual pile sheet can be welded to one another to form a unitary structure. In one exemplary embodiment, the curved sheet pile is inserted beneath a conduit using a vibratory pile driver that rotates about a fixed pivot element on an excavator or other heavy machine for positioning the pile driver to advance the curved sheet pile along a fixed arc.

Abstract: A steel material for an underground continuous wall equipped with a hat type steel sheet pile having a hat-shaped cross-section, and an H-beam having an H-shaped cross-section, wherein: the hat type steel sheet pile includes a web, a pair of flanges, and a pair of arm sections; the H-beam includes a pair of flange sections and a web section; an outer surface of the H-beam is secured to an outer surface of the web; the length of the H-beam is shorter than that of the hat type steel sheet pile, and an overall length of the H-beam is arranged within the length of the hat type steel sheet pile; and a rear end of the H-beam is located closer to a forward end side than a rear end of the hat type steel sheet pile.

Abstract: In one exemplary embodiment, the present invention includes a plurality of individual curved sheet piles that are positioned beneath an underground conduit, such as a raceway, to support the conduit during excavation. In one exemplary embodiment, the individual sections of curved sheet pile are interfit and/or interconnected. This allows the individual sections to work in combination with one another to support the conduit. Specifically, opposing ends of a length of interfit and/or interconnected curved sheet piles extend into unexcavated soil on both sides of an excavated hole to form a bridge across the hole that supports the conduit and any soil or other subterranean material positioned above the curved sheet pile.

Abstract: A trench shoring or shielding unit, for securing the sidewalls of an earthen formation, trench or excavation, includes a plurality of adjustable, vertically arranged panels forming a protective wall. As a shielding unit, two opposing protective walls are spaced and attached by at least two spreader bars. Each adjustable panel has opposing top and bottom ends, a C-shaped channel traversing the panel's height, and opposing side edges that inter-engage with the side edges of adjacent panels. Further, each adjustable panel is attached to at least one of two or more whalers along an inner surface of the panel by a clamp-like fastener having a bolt passing through the whaler and into the C-shaped channel of the corresponding panel. The inter-engaging side edges are segmented, preferable concave and convex, so that adjacent adjustable panels inter-engage to resist lateral torque or twisting that may be caused by shifting or collapse of the excavation.

Abstract: The invention relates to a double T-shaped steel piling wall profile (1), which is produced by hot rolling and which has two flange sections (3) that are centrally joined via a connecting member (8). The flange sections have connecting end sections (4), which are adjoined thereto and which have a club-shaped design.

Abstract: A sheet piling (15) comprising a flange (16), a web (19), a junction (20) between the flange and the web, the junction having a substantially concave inner surface (44), the inner surface comprising at least a first concave surface of first radius (23a) and a second concave surface of second radius (23b). The inner surface may further comprise a third concave surface of third radius (23c).

Abstract: An underground earth retention strut construction method using a horizontal frame structure is disclosed, in which since a vertical member is formed after a horizontal frame structure is first installed and completed, it is possible to minimize any interference between the vertical member and the horizontal frame structure for thereby achieving an easier construction and enhancing a construction quality. The interval of the temporary vertical member is widened during an underground excavation work, so that the ground excavation work is easy. The improved horizontal frame structure of an architecture comprises a pair of straight members which are connected by at least one plate; and a “#”-shaped connection member which is connected at a portion in which the straight members cross with each other.

Abstract: A ground retaining wall includes wall panels formed from steel sheet to provide a flat exterior wall surface on a front side and having side flanges on vertically extending edges for joining panels together. The wall includes reinforcement studs and brackets attached to a back side of the panels and extending between a top cap and a base pan of the panels. Each bracket is located along a panel side flange at a seam where two panels are joined together. The wall also includes support brace assemblies each attached to the panels at one of the seams. The brace assembly includes a base plate attached to a bottom strut and a brace rod. The brace rod extends diagonally between the base plate and wall panel. The wall may include a concrete base covering the wall panel base pans and the brace assembly base plates.

Abstract: A sheet piling (15) comprising a first flange (16), a second flange (18), a web (19), a junction (20) between the first flange and the web, the junction having a substantially concave inner surface (44), the inner surface comprising at least a first concave surface of first radius (23a) and a second concave surface of second radius (23b). The inner surface may further comprise a third concave surface of third radius (23c).

Abstract: Disclosed herein is a support system that is temporarily placed below ground for preventing collapse of the excavated ground when a subway is constructed or a basement of a building is built. The excavated ground or load is supported by means of supporting members, the supporting members being pre-stressed by means of tensioning members and tendon support members serving to support the tensioning members. Consequently, the number of struts for supporting vertical piles and wales is considerably reduced so that obstacles in the under-ground space when it is excavated are removed. Furthermore, the constructional efficiency of the underground space is greatly improved, and the cost of construction is sharply reduced.

Abstract: An improved Z-shaped sheet piling (15) comprising a first flange (16), a second flange (18), a web (19), a junction (20) between the first flange and the web, the junction having an inner surface (44), the inner surface defined by at least a first radius (23a) and a second radius (23b). The inner surface may be further defined by a third radius (23c). The sheet piling may comprise a first flange (16) having a substantially planar flange surface (37), a second flange (18), a web (19) having a substantially planar web surface (39), a junction (20) between the first flange and the web, the junction having a fillet portion (43) defined by the planes of the web surface and flange surface extended to an intersection (59) and an inner substantially arcuate surface (44) intersecting the web surface and flange surface, the inner arcuate surface defined by at least a first radius (23a) and a second radius (23b). The inner arcuate surface may be further defined by a third radius (23c).

Abstract: A metal sheet pile has an improved joint strength and is suitable for high productivity manufacturing. Right and left end flanges are formed at opposite sides of the rolled steel sheet pile. Joints are formed at edges of the right and left end flanges. Cross-sections of the joints are point-symmetric or line-symmetric, wherein the end flange and the joint are disposed so that a center of point-symmetry of a pair of interfitted joints is located on or near a centerline of the end flange in the thickness direction. Furthermore, the joint has a protrusion for preventing rotation near the border between the joint and the end flange portion.

Abstract: A device for shoring trenches having rails, panels and articulated trusses such that pairs of opposite rails are upheld vertically by trusses and spaced along the trench to support shoring panels which slide past each other vertically within guides of adjacent rails; the rail having a back flange welded on a main rectangular tube which is provided on either side with two lateral rectangular tubes welded offset and inward past the main tube such that with a front flange welded on each lateral tube shape two vertical guides on either side of rail, the front flanges being projecting into the space between lateral tubes creating a guide contouring the edge of articulated truss which slides interlocked within; the panel being provided with special edges that interlock within vertical guides of rail, the truss being articulated and provided with roller to displace along the front flanges of the rails.

Abstract: Composite sheet piling segments with supplemental fiber re-enforcement of the corners of the segment have been developed. The sheet piling segments include a series of panels that are connected at an angle and supplemental fibers that are added to reenforce that angle. The sheet piling segment may also include a connector that is used to join separate sheet piling segments together. Supplemental fibers may be added to reenforce the connector.

Abstract: Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create subterranean barriers for containing and treating buried waste and its effluents. The multiple female interlock structures enable the barriers to be varied around subsurface objects and to form barrier sidewalls. The barrier may be used for treating and monitoring a zone of interest.

Abstract: In a metal sheet pile, an effective width B [mm], a flange width Bf [mm], a height H [mm] and a geometrical moment of inertia I [cm4/m] meet the inequalities 700≦B≦1,200; 280≦Bf≦0.0005×B2−0.05×B; and −0.073×B+0.0043×I+230≦H≦380. The metal sheet pile provides a better cross-sectional performance than a background art metal sheet pile.

Abstract: The present invention relates generally to a wale for use in bracing a retaining wall. The wale is comprise of a back wall, a front wall having a channel formed therein, and a plurality of connecting walls connecting the back and front walls to form at least one chamber between the back and front walls. In one embodiment, the wale is of unitary construction and the plurality of connecting walls includes top and bottom walls which form a single chamber between the back and front walls. In an alternative embodiment, the wale is of a unitary construction and the plurality of connecting walls includes a top, upper reinforcing, lower reinforcing, and bottom walls, which form a plurality of chambers between the back and front walls. The wale may by made of a pultruded composite material such as a fiberglass reinforced plastic (FRP) resin impregnated composite. A seawall system using such a waler is also described.

Abstract: A method for driving a sheet pile (10) into the ground comprises the steps of providing a sheet pile (10) comprising at least one sheet pile interlock (14) having an interlock chamber (20); inserting an obturating device (16) into said interlock chamber (20); driving said sheet pile (10) into the ground; withdrawing said obturating device (16) from said interlock chamber (20). Important features of the method are that said obturating device (16) comprises an inflatable tube (21); that said inflatable tube (21) is inflated after said obturating device (16) has been inserted into said interlock chamber (20) and before said sheet pile (10) is driven into the ground; and that said inflatable tube (21) is again deflated before it is withdrawn from interlock chamber (20).

Abstract: A method for securing two sheet piles (12) interlocked by means of sheet pile interlocks (14, 16) characterised by axially inserting an electrode (30) into an axial groove (22) between said sheet pile interlocks (14, 16) and welding said sheet pile interlocks (14, 16) at least locally together in said groove (22).

Abstract: A U-head plate is provided having a channel for capturing a base plate of a shoring apparatus. A pair of inwardly opposing L-shaped extensions extending downwardly from the U-head plate forms the channel. A latch attached to the U-head plate has a tongue for engaging a notch in the base plate of the shoring apparatus upon capture of the base plate of the shoring apparatus within the channel. The tongue is biased toward the notch by a spring.

Abstract: A connection arrangement for temporary shoring in an excavation site is used to secure I-beams together at corners within the excavation site. Typically, four I-beams are connected together to form a rectangular frame that is suspended within the excavation for bracing the shoring walls thereof. However, any polygonal shape may be used. The connection arrangement includes mating socket or connecting members which are placed over the ends of I-beams to be fastened together. One of the connecting members includes an outwardly extended tab while the other includes a pair of outwardly extended tabs. The first outwardly extending tab fits between the two extending tabs of the corresponding connecting member. All of the tabs are provided with apertures which are placed in alignment when the connection is made so that a bolt or pin can be passed through the apertures to secure adjacent connecting members together.

Abstract: This invention is directed to an improved Z-shaped sheet piling (15). In the preferred embodiment, the piling has a first flange (16), a web (19), a second flange (18), a section modulus of at least about 25 in.3/ft., a weight of less than about 31 lbs./ft.2, the second flange having a wale location (68), and the web, first flange and second flange being so dimensioned and configured that the transverse stress at the wale location for each psi of applied pressure load is less than about 1000 psi. The present invention also discloses a Z-shaped sheet piling in which the first flange has a span location (65) and the first flange, web, and second flange are so dimensioned and configured that the transverse stress at the span location for each psi of applied load is less than about 800 psi. The transverse stress at the wale location may be about 878 psi per psi of applied load and the transverse stress at the span location may be about 731 psi per psi of applied load or about 786 psi per psi of applied load.

Abstract: A method of fabricating a groundwater monitoring system and a monitoring system formed using said method wherein a housing containing a groundwater monitoring well is slidably attached to a sheet piling section. After the sheet piling section is inserted in the ground, the housing is withdrawn so that the groundwater can be monitored by the well.

Abstract: A hot-rolled Z-shaped sheet pile comprises two flanges (12', 12") and a web (10) delimited by two substantially plane faces (18', 18"). This web (10) makes an acute angle 75o with a plane (16) parallel to the outer faces (14', 14") of the flanges (12', 12"). In order to increase the section modulus of this sheet pile without having to increase the thickness of the flanges (12', 12") or the rolling width, each of the two flanges (12', 12") has an extension (22', 22") protruding with respect to the fictitious plane (24', 24") extending the plane face (18', 18") of the web located on the same side as the outer face (14', 14") of the respective flange. In this way, it is possible to roll sheet piles having a section modulus per unit length of the wall 4800 cm3/cm and a specific section modulus of approximately 20 (cm3/m)/(kg/m2).

Abstract: An extruded containment barrier panel (5) for use in forming a containment barrier wall about a waste material storage or disposal site is disclosed. The containment barrier panel has an elongate body panel (10) with a top end (11), a spaced bottom end (12), and a first side edge (14) and a spaced parallel second side edge (15) extending from the top end to the bottom end of the body panel. A C-shaped female connecting member (17) is formed along the first side edge of the body panel, and a complimentary male connecting member (22) is formed along the second side edge of the body panel, both of which extend the length of the body panel.

Abstract: Structural panels (12) of extruded PVC and of stretched Z-shaped configuration and which can be driven into the ground include strengthening ribs (36-40) extending from the inner surfaces (34 and 35) of the opposed side sections (26 and 27). The ribs extend at a right angle to the side section bending planes (56 and 57) and at a right angle to the panel bending plane (64), thereby adding significant resistance to both compression and tension forces applied to the panel. The structural panels are driven into the earth to form a wall barrier, with the female locking element (43) being telescopically moved along the male locking element (42) of a previously installed panel. Distal strengthening rib (40) functions as a driving tongue to stabilize the position of the male locking element (42) during driving of the panel into the ground.

Abstract: The barrier is waterproof, and is used to contain contaminated groundwater within an enclosure. Steel elements are pile driven, the elements having rolled-over edge forms (5,6) which interengage. Upon interengagement, an enclosed hole (90) is created which extends from top to bottom of the piled elements. A scraper (19) on the junior element (8) cleans dirt out of the hole as the junior is driven down alongside the adjacent senior element (7). The hole may be cleaned out by inserting a hose pipe to the bottom of the hole (90) and flushing through with water. Then, a sealant is injected into the hole, using an injection tube in the hole. The interengagement of the edge forms (5,6) of the elements is such that the hole formed by the interengagement is constrained to its nominal size and shape throughout the whole height of the barrier.

Abstract: The barrier is waterproof, and is used to contain contaminated groundwater within an enclosure. Steel elements, are pile driven, the elements having rolled-over edge forms (5,6) which interengage. Upon interengagement, an enclosed hole (90) is created which extends from top to bottom of the piled elements. A scraper (19) on the junior element (8) cleans dirt out of the hole as the junior is driven down alongside the adjacent senior element (7). The hole may be cleaned out by inserting a hose pipe to the bottom of the hole (90) and flushing through with water. Then, a sealant is injected into the hole, using an injection tube in the hole. The interengagement of the edge forms (5,8) of the elements is such that the hole formed by the interengagement is constrained to its nominal size and shape throughout the whole height of the barrier.

Abstract: A method and apparatus for constructing modular trench box sheeting panels for use in wall supporting during the excavation of trenches or the like. A rectangular support frame is formed by a pair of sheeting support members secured to one another by pairs of spreader members at oppositely disposed ends thereof. The box sheeting panels of the invention are formed of modular interdependent structural shapes that are assembled in a modular fabrication method to form interengageable adjustable wall sheeting panel members with reinforced pounding plates and ground engaging knife edges.

Abstract: A wide sheet pile for the formation of buildings folded or formed from a metal plate or plates or by joining modular panels. The sheet pile is of corrugated form having upper and lower webs and joined by an inclined flange and provided on opposite sides with joining members and to enable the sheet pile to be connected to adjacent sheet piles. The sheet pile may incorporate a lateral stiffener or stiffeners. There is also disclosed pile driving apparatus for driving a sheet pile member into the ground, said apparatus including a pile driving frame for supporting drive means for applying a driving force to a said sheet pile member and means for coupling said pile driving frame to an adjacent said sheet pile member in the ground.

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: The invention is directed to construction implements and methods for their use in the construction of retaining walls, revetments, road ways, suspended floor spans and the like. The basic element is a support sheet (1) comprising an essentially quadrangular sheet folded about at least one longitudinal axis (2) to produce at least one fold in the sheet. The basic element can be used to construct a load bearing surface at any angle. The basic element can be driven into the ground with the aid of various adapters (6) and attachments (17). Optionally, for additional strength, the sheet can be tied to the grounds by various anchor (26) (52) and rod assemblies (35). Each anchor is pivotally connected to the rod and positioned in the ground in a closed position. When appropriate tension is applied to the rod, the anchor assumes an open position and bites into the ground.

Abstract: A pair of spaced walls which may be formed from corrugated metal sheets are joined together with a bottom plate being attached to the edges of the walls to form a box-like structure. A drive shoe formed by a pair of plates may be attached to the bottom of the structure. A sonic oscillator is attached to the top edges of the structure and sonic energy, preferably at a frequency which causes resonant standing wave vibration of the box-like structure, is applied to such structure so as to drive it into the ground. Successive sections of similar box-like structures are driven into the ground in end to end overlapping relationship to form an elongated box structure installed in the soil. This structure is employed to provide a barrier against the migration of soil pollutants. Further, soil samples can be taken from the area contained by the box-like structure to evaluate the effectiveness of the barrier provided by the first 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: A bin-type retaining wall including at least one bin 10 defined by front and rear wall sections 12, 14 spaced apart by spacing walls 16, the bin providing a volume for anchoring material. Each wall section includes a plurality of longitudinal stringers 20, substantially hat-shaped in cross section and defined by a force receiving web 34 and a pair of outwardly diverging legs 32. Each leg terminates at an angled flange 36 having a portion 36a located in a vertical plane substantially parallel to the force receiving web and another portion 36b located in a plane that intersects the plane of the web. The flange portions 36b define abutting surfaces for adjacent stringers. Forces generated by the anchoring material, applied to the webs urge the legs outwardly to cause abutting contact between adjacent leg flange portions 36b, generating a soil tight interface between adjacent stringers.

Abstract: A steel sheet pile for forming the wall of an excavation and the sheet pile assembly are disclosed herein. The steel sheet piles are in use to be arranged in side edge to side edge relationship with each other for supporting the wall of the excavation. Each sheet pile has a generally H-shaped cross section comprising a web with a wide flange on one side thereof and a narrow flange on the opposite side. Formed at the side edges of the wide flange are joint elements which interconnect the adjacent pairs of sheet piles. With this configuration of the sheet pile having the wide and narrow flanges, the sheet piles can be successfully placed along a curved wall or can form a corner portion thereof without the interference between the narrow flanges of the adjacent sheet piles. Accordingly, the sheet piles can be arranged to form not only a straight wall but also curved and corner walls of the excavation, under retention of high rigidity arising from the employment of the generally H-shaped configuration.