Abstract: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.

Abstract: A retaining wall for retaining matter on a side thereof comprising: a plurality of upwardly projecting primary sheet piles spaced apart from each other and having first structural properties comprising at least one of weight, size, strength and depth to be installed in a supporting body; and one or more intermediate panels of material arranged so as to span the gap between a pair primary sheet piles and to retain at least a portion of the retained matter, wherein the one or more intermediate panels have second structural properties different from the first structural properties.

Abstract: A sheet piling for mandrel-installed engagement with an identical adjacent sheet piling. The mandrel has a guide hook and a rotating toe protector. The sheet piling has a female interlocking feature with a pair of hooks and an engagement hook for releasably engaging the mandrel guide hook. The sheet piling also has a male interlocking feature with a pair of hooks configured to engage the pair of female hooks of an adjacent sheet piling in a multi-piling wall structure.

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: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.

Abstract: A method for making a wall in soil. The method may include forming a trench in the soil; filling the trench with a self-hardening material; supplying at least one prefabricated element that has two plates connected together by a connection member; and positioning the prefabricated element in the trench filled with the self-hardening material.

Abstract: Embodiments of the present invention are directed to a load transporting apparatus that is capable of being steered while transporting a load across a base surface. In particular, the load transporting apparatus includes a roller track configured to support movement of a roller assembly, and a support foot that is connected to the roller track with a pin connector. During load transport, the support foot can be maintained in a substantially similar position relative to a frame structure supporting the load even when the transport movement is not in a parallel direction to the orientation of the support foot.

Abstract: Forcing equipment meant for forcing piles, steel profiles and other elongated objects into the ground which forcing equipment comprises a body (1) which can be attached to a working machine, a vibration device (6) attached to the body (1) with the help of damper cushions (9) and moveable grip jaws (10) adjusted to the mentioned vibration device (6) in order to grip the object to be forced at least with a side grip. The body (1) comprises an upper part (2) including an attachment arrangement (4), (5) for attaching it to the working machine and side parts directed from the upper part (2) downwards between which side parts the vibration device (6) and grip jaws (10); (17, 18) can be attached through cassette (7) comprising damping rubbers (9) in which case the attachments comprise pin/hole attachments (11, 23, 14); (20, 8) or (21, 8) which can be opened by detaching the mentioned pins (11, 20, 21).

Abstract: A sheet piling for mandrel-installed engagement with an identical adjacent sheet piling. The mandrel has a guide hook and a rotating toe protector. The sheet piling has a female interlocking feature with a pair of hooks and an engagement hook for releasably engaging the mandrel guide hook. The sheet piling also has a male interlocking feature with a pair of hooks configured to engage the pair of female hooks of an adjacent sheet piling in a multi-piling wall structure.

Abstract: A system and method for installing sheet piles using active gripping along side portions of the sheet piles. A sheet pile profile including first and second locking profiles and a gripping flange enables engagement of the sheet piles onto a mandrel for installation. Double engagement flanges on the locking profiles and an expandable connection between adjacent sheet piles provide improved resistance to fluid passage.

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 invention relates to a method for manufacturing a sheet pile wall component such as a sheet pile, a connection profile or a carrier that exhibits at least one interlock with a uniform cross-section extending across the entire length of the sheet pile wall component for engaging the interlock of an additional sheet pile wall component. According to the invention, a preliminary product is produced by forming using this method, and the interlock when viewed in its cross-section is manufactured at least in sections by shape-cutting at the section of the preliminary product that is to be provided with the interlock, whereby the cross-section of the section is dimensioned sufficiently such that the dimensional deviations caused by forming at the preliminary product are taken into account for the shape-cutting of the interlock.

Abstract: A system for installation of sheet pile including a sheet pile installation apparatus having a substantially rigid elongate beam with an upper end and a lower end, and at least one drive finger proximal the lower end of the substantially rigid elongate beam; and a sheet pile having an elongate member with an upper end and a lower end, and a first side and a second side, the first side having a male profile lock and the second side having a female profile lock, the sheet pile further including at least one receiver proximal the lower end for receiving the at least one drive finger of the sheet pile installation apparatus.

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 interlocking sheet profile connector comprises a first and a second connecting profile. The first connecting profile includes a base attached to the first sheet pile wall element, a neck strip projecting from the base and a head strip of larger cross section on the free end of the neck strip. The second connecting profile possesses a base attached to a second sheet pile wall element and a claw strip to secure a head strip. The head strip of the first connecting profile is thus configured both to secure the claw strip of a sheet pile as a sheet pile wall element and to secure the claw strip of the second connecting profile, while the claw strip of the second connecting profile serves both to secure the head strip of a sheet pile as a sheet pile wall element and to secure the head strip of the first connecting profile.

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 interlocking sheet profile connector comprises a first and a second connecting profile. The first connecting profile includes a base attached to the first sheet pile wall element, a neck strip projecting from the base and a head strip of larger cross section on the free end of the neck strip. The second connecting profile possesses a base attached to a second sheet pile wall element and a claw strip to secure a head strip. The head strip of the first connecting profile is thus configured both to secure the claw strip of a sheet pile as a sheet pile wall element and to secure the claw strip of the second connecting profile, while the claw strip of the second connecting profile serves both to secure the head strip of a sheet pile as a sheet pile wall element and to secure the head strip of the first connecting profile.

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: The invention relates to an assembly of several sheet pile walls and at least one pair of connecting profiles (10, 20) with uniform cross section viewed along the longitudinal direction to connect two sheet pile walls (90, 94). In this assembly (100), the first of the two connecting profiles (10) possesses a base attached to the first sheet pile wall (90), a neck strip projecting from the base in a predetermined direction, and a head strip of larger cross section on the free end of the neck strip for engagement with a claw strip partially surrounding the head strip. The second of the two connecting profiles (2) possesses a base attached to a second sheet pile wall (90) and a claw strip to secure a head strip.

Abstract: A pile driving system for driving a pile comprising a support system comprising an arm assembly, an engaging system comprising a primary housing and a secondary housing, a suspension system, a vibratory system, and first and second clamp assemblies. The first clamp assembly rigidly connects the secondary housing to the pile. The second clamp assembly rigidly connects the secondary housing to the pile. The second clamp assembly rigidly connects the secondary housing to the side portion of the pile. The tip portion of the at least one pick member engages at least one sheet pile of a substantially horizontal stack of sheet piles to remove the at least one sheet pile from the stack of sheet piles. The pile driving system drives the pile using at least one of a driving force generated by the support system and a vibrational force generated by the vibratory system.

Abstract: A connection element (10), having a constant cross-section for sheet pile wall components such as sheet piles, features a claw profile (12) for engaging a head strip (44) of a sheet pile wall component (42). The claw profile (12) exhibits a claw-shaped lock (22) formed by two hook strips (18, 20) as well as an attachment profile (14) for engaging in a claw-shaped lock (46) of a sheet pile wall component (42). The attachment profile (14) exhibits a straight neck strip (32) and a head strip (34) of a greater cross-section at its free end. An additional head strip (38) for securing a claw-shaped lock (46) of a sheet pile wall component (42) is formed at the free end section (28) of at least one of the hook strips (20) of the claw profile (12).

Abstract: A system and method for installing sheet piles using active gripping along side portions of the sheet piles. A sheet pile profile including first and second locking profiles and a gripping flange enables engagement of the sheet piles onto a mandrel for installation. Double engagement flanges on the locking profiles and an expandable connection between adjacent sheet piles provide improved resistance to fluid passage.

Abstract: A method is provided for planning sheet pile wall sections via a user-oriented network—in particular, the Internet—in which at least technical characteristics of a suitable component for the layout of a sheet pile wall section and/or the layout of a sheet pile wall section itself are determined for the user by a computer system.

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: An arrangement of sheet-pile wall components includes two sheet-pile wall sections. The ends of the two sheet-pile wall sections are arranged. Their locks are hooked into two lock profiles of a connecting profile which is hooked via a third lock profile into the lock of an anchorage. The respective other ends of the sheet-pile wall sections are secured such that each of the two sheet-pile wall sections partially encloses a region. At least one of the lock profiles and the lock of the sheet-pile wall component of the anchorage in engagement therewith are configured in such a way that the lock profile of the connecting profile and the lock in engagement therewith are hooked one inside the other and grip around one another. As viewed in cross section, they bear on one another and are supported against one another by at least three points in at least one installed position.

Abstract: The invention relates to a construction machine comprising a transmission, at least one hydraulic drive and a hydraulic circuit for supplying the hydraulic drive with hydraulic fluid, wherein at least one lubrication line is branched off from the hydraulic circuit, by means of which the transmission can be supplied with hydraulic fluid as a lubricant. The invention is characterized in that a dosing device is provided on the lubrication line, with which the supply of lubricant can be changed depending on an operating condition of the transmission.

Abstract: A connection element (10), having a constant cross-section for sheet pile wall components such as sheet piles, features a claw profile (12) for engaging a head strip (44) of a sheet pile wall component (42). The claw profile (12) exhibits a claw-shaped lock (22) formed by two hook strips (18, 20) as well as an attachment profile (14) for engaging in a claw-shaped lock (46) of a sheet pile wall component (42). The attachment profile (14) exhibits a straight neck strip (32) and a head strip (34) of a greater cross-section at its free end. An additional head strip (38) for securing a claw-shaped lock (46) of a sheet pile wall component (42) is formed at the free end section (28) of at least one of the hook strips (20) of the claw profile (12).

Abstract: An arrangement of sheet-pile wall components includes two sheet-pile wall sections. The ends of the two sheet-pile wall sections are arranged. Their locks are hooked into two lock profiles of a connecting profile which is hooked via a third lock profile into the lock of an anchorage. The respective other ends of the sheet-pile wall sections are secured such that each of the two sheet-pile wall sections partially encloses a region. At least one of the lock profiles and the lock of the sheet-pile wall component of the anchorage in engagement therewith are configured in such a way that the lock profile of the connecting profile and the lock in engagement therewith are hooked one inside the other and grip around one another. As viewed in cross section, they bear on one another and are supported against one another by at least three points in at least one installed position.

Abstract: The first of the two connecting profiles of a sheet pile wall assembly possesses a base attached to a sheet pile wall, a neck strip projecting from the base in a predetermined direction, and a head strip of larger cross section on the free end of the neck strip for engagement with a claw strip partially surrounding the head strip. The second of the two connecting profiles possesses a base attached to a second sheet pile wall and a claw strip to secure a head strip. The head strip of the first connecting profile is thus configured both to secure the claw strip of a sheet pile as a sheet pile wall and to secure the claw strip of the second connecting profile.

Abstract: Free standing above-ground barrier wall 10 that includes a plurality of sheet-pile planks 16, and optionally one or more support elements 12 that are interconnected together using one or more interlocking connectors 22, 24. The sheet-pile plank 16 has a lower edge located proximate a top surface of the ground 14 upon which the free standing above-ground barrier wall 10 is erected in an upstanding, installed configuration. The sheet-pile plank 16 and the support element 12 each constitute sheet-pile components and in the upstanding, installed configuration, a lower portion of the sheet-pile plank 16 is ground engaged and a substantial entirety of the weight of the sheet-pile plank is supported at its engagement with the ground. The engagement may be merely abutting with the plank 16 resting atop the ground, or the lower edge of the plank 16 may be buried into the ground to a certain degree.

Abstract: A method and apparatus for inserting a sheet pile (10) into an earth formation using a protective housing (12) releasably connected to the sheet pile (10). The protective housing has a fluid gallery and conduits for releasing fluid such as water onto the base of the sheet pile without jetting water into the earth formation. The method and apparatus are particularly suited for driving vinyl and plastic sheet piles into highly resistant soils.

Abstract: Embodiments of the disclosure are directed to cellular sheet pile retaining wall systems with unconnected tail walls, and associated methods of use and manufacture. In one embodiment, a retaining system includes a face wall having a plurality of interconnected face wall sheet piles. The individual face wall sheet piles have a first length and extend a first depth into soil, and the face wall sheet piles form an exterior surface facing an exterior environment. The system also includes a tail wall including a plurality of interconnected tail wall sheet piles extending from the face wall away from the exterior environment. The individual tail wall sheet piles have a second length greater than the first length, and the individual tail sheet wall piles extend a second depth into the soil that is greater than the first depth.

Abstract: A barrier panel system and a method of installing the barrier panel system is provided. The barrier panel system includes a barrier panel having a top and a bottom. The panel includes at least one channel extending from the top to the bottom of the barrier panel. A removable jet assembly unit can be connected to the panel within the channel. The removable jet assembly unit includes at least one cutter tool pipe which is connected to a jet head and at least one vacuum manifold. The jet head at the bottom of the cutter tool pipe delivers and directs the pressurized stream to transform the ground material into a form which is easily removable by a vacuum connected to the vacuum manifold. As the vacuum removes the ground matter, an opening is formed in the ground allowing the panel to sink. The barrier panel also includes interlocking features on the sides allowing them to be easily attached to one another horizontally to form an interconnected barrier wall system.

Abstract: A pile driving system comprising an engaging system comprising a suspension system, a vibratory system, and first and second clamp assemblies. The primary housing is operatively supported by an arm assembly of a support system. The suspension system is configured to resiliently oppose movement of a secondary housing within a limited range of movement relative to a primary housing. The vibratory system is rigidly connected to the secondary housing. The first and second clamp to assemblies are supported by the secondary housing. In a first mode, the first clamp assembly rigidly connects the secondary housing to the pile, and in a second mode the second clamp assembly rigidly connects the secondary housing to the pile. The pile driving system drives the pile using a driving force generated by the support system and/or a vibrational force generated by the vibratory system.

Abstract: A system for installation of sheet pile including a sheet pile installation apparatus having a substantially rigid elongate beam with an upper end and a lower end, and at least one drive finger proximal the lower end of the substantially rigid elongate beam; and a sheet pile having an elongate member with an upper end and a lower end, and a first side and a second side, the first side having a male profile lock and the second side having a female profile lock, the sheet pile further including at least one receiver proximal the lower end for receiving the at least one drive finger of the sheet pile installation apparatus.

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: 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: The invention relates to a method for manufacturing a sheet pile wall component such as a sheet pile, a connection profile or a carrier that exhibits at least one interlock with a uniform cross-section extending across the entire length of the sheet pile wall component for engaging the interlock of an additional sheet pile wall component. According to the invention, a preliminary product is produced by forming using this method, and the interlock when viewed in its cross-section is manufactured at least in sections by shape-cutting at the section of the preliminary product that is to be provided with the interlock, whereby the cross-section of the section is dimensioned sufficiently such that the dimensional deviations caused by forming at the preliminary product are taken into account for the shape-cutting of the interlock.

Abstract: A wall for retaining water includes a backing support, formed by vertically arranged sheet piling, a base attached to the sheet piling, and a rock or boulder facade supported on the base. The sheet piling is formed of undulating, interlocking steel sheets. A backing plate is welded to the sheet piling. A high quality plaster is applied between the facade and the backing plate and between the backing plate and the sheet piling. Preferably, the plaster is a pool plaster type, typically used to seal cracks and form an exposed surface in in-ground swimming pools.

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: A sealing device for sealing a sheet pile profile, including a sealing body including a shape complementary to a sheet pile profile, wherein the sealing device includes a casing, which casing envelops the sealing material in a gas-tight manner and wherein, in the casing, such an underpressure has been created that the sealing body is in a shrunken state, and wherein the sealing body is designed to expand into an expanded state when a gas is let into the casing up to an atmospheric pressure, as well as a method for producing an assembly of a sheet pile profile and a sealing device.

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 soil raining system combining flat sheet pile wails 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: An arrangement of sheet-pile wall components includes two sheet-pile wall sections. The ends of the two sheet-pile wall sections are arranged. Their locks are hooked into two lock profiles of a connecting profile which is hooked via a third lock profile into the lock of an anchorage. The respective other ends of the sheet-pile wall sections are secured such that each of the two sheet-pile wall sections partially encloses a region. At least one of the lock profiles and the lock of the sheet-pile wall component of the anchorage in engagement therewith are configured in such a way that the lock profile of the connecting profile and the lock in engagement therewith are hooked one inside the other and grip around one another. As viewed in cross section, they bear on one another and are supported against one another by at least three points in at least one installed position.

Abstract: A rod-type connecting profiled element (10) for connecting sheet piles to carrier elements comprises a central strip (12) that separates two opposing connecting profiled elements (16, 18), each of which respectively forms a saw (24, 42). One connecting profiled element is embodied as a plug-in profiled element (16) for the carrier element and the other connecting profiled element is embodied as a receiving profiled element (18) for connecting a sheet pile. The central strip (12) comprises, on the side of the receiving profiled element (18), a central section (14) having a straight plane inner wall (30) to which a first short end section (32) is connected on one side, said short end section protruding past the central section (14) at an angle of approximately 90°, and being connected thereto by means of a transition section (36) having an inner wall with a cross-section that follows a quadrant.

Abstract: A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.

Abstract: A seawall element and installation apparatus therefor, the seawall element including an elongated plastic tubular member having a uniform hollow elliptic or oval-shaped cross section and open at each end thereof. The tubular member has a cylindrically-shaped male portion and cavity interlocking arrangement for interlocking two side by side tubular members together by slidable overlapping substantially watertight engagement lengthwise of one tubular member to another. A seawall structure includes a plurality of these seawall tubular members positioned side by side in self-locking engagement to form a row and supported by being supportively embedded into the earth. An elongated cast concrete reinforcing cap extends along and interconnects an upper end portion of each of the seawall tubular members and extends monolithically into each of the tubular member upon deployment. An apparatus for water jetting each tubular member into bottom ground is also disclosed.

Abstract: The invention relates to a construction machine comprising a transmission, at least one hydraulic drive and a hydraulic circuit for supplying the hydraulic drive with hydraulic fluid, wherein at least one lubrication line is branched off from the hydraulic circuit, by means of which the transmission can be supplied with hydraulic fluid as a lubricant. The invention is characterized in that a dosing device is provided on the lubrication line, with which the supply of lubricant can be changed depending on an operating condition of the transmission.

Abstract: A cellular reinforcing structure (1) for preventing soil erosion includes a plurality of lattice type sheets (5) of plastics material having longitudinal members (9) joined by transverse members (8) which define openings (13). The sheets (5) are bent to form first and second locations (11,12), and the first locations (11) of each sheet (5) engage first locations (11) of the adjacent sheet (5) on one side thereof, and the second locations (12) of each sheet (5) engage the second locations (12) of an adjacent sheet (5) on the other side thereof. The sheets (5) inter-engage at their first and second locations to define retaining bores (14), and retaining bars (15) are inserted through the retaining bores (14) for retaining the first and second locations of the respective sheets inter-engaged with each other.

Abstract: An elongated sheet piling panel has a length and width, and opposed side edges, and has elongated voids positioned within the interior of the panel. The voids are oriented in the direction of the length of the panel, and the edges of the panel are configured to be connected to the edges of additional similar panels.