Abstract: A wind turbine platform includes a wind turbine base; a plurality of radial moment beams, operatively connected to the wind turbine base, extending radially from the wind turbine base; and a plurality of piles, each pile being operatively connected to a radial moment beam and extending into a medium to provide foundational support for the wind turbine platform.

Abstract: Disclosed are a shield tunnel segment structure and a construction method thereof. The shield tunnel segment structure includes segment blocks sequentially spliced in a circumferential direction. Each segment block forms a closed annular segment structure, and outer diameters of adjacent annular segment structures gradually increase in an axial direction. At least two adjacent segment blocks of the same annular segment structure form an annular inner groove, and at least one segment block of the adjacent annular segment structures is provided with an inner bump which matches the annular inner groove. At least two adjacent segment blocks of the same annular segment structure form an annular outer groove, and at least one segment block of the adjacent annular segment structures is provided with an outer bump which matches the annular outer groove. The annular outer grooves and the annular inner grooves are staggered in the circumferential direction.

Abstract: The disclosure relates to an assembly, and a method of use for the assembly, for staging a pile on the ground, including: at least one stand having a mainframe assembly on the ground, having a front end and a rear end, wherein each stand has: a roller assembly slidably mounted on the main frame assembly, wherein the roller assembly further has a roller located towards the front end; and a pivoting arm assembly having a pivoting arm configured for pivoting towards the ground and away from the ground; and a second roller connected to an end of the pivoting arm.

Abstract: Described herein are multi-tool boring systems and methods of operating such systems for tunnel boring and/or underground pipe installation. A multi-tool boring system is specially configured for fast installation and replacement of various tools, such as a pneumatic rammer and a hydraulic drive, enabling different operating modes of the system, e.g., pilot tube installation, auger boring, pipe ramming, pilot pullback boring, static pipe bursting, and non-contact boring. In some examples, a multi-tool boring system comprises a track assembly, a jacking frame slidably supported on the track assembly, and an impact plate assembly, which is attached to the jacking frame and comprises an impact plate and shock absorbers between the impact plate and the jacking frame. The impact plate comprises an impact plate opening configured to engage and support a pneumatic rammer. The rammer can be replaced with a hydraulic drive with a shaft protruding through the opening.

Abstract: A system is provided for shoreline stabilization having at least five rectangular shoreline stabilization devices; wherein a first two of the devices are arranged on opposite sides of a line running perpendicular to the first two devices; at least one of the devices is positioned perpendicular to and on top or in between the first two devices, and atop the line; and wherein a second two of the devices are each positioned at an angle relative to the first two devices to provide two angled devices, with a first end on top of one of the first two devices and a second end resting on at least one of the perpendicular devices to form an angle between a slope of between about 1.5:1 and 2:1, wherein the two angled devices are not resting on the same one of the first two devices.

Abstract: A ground excavation shield that can include a first wall, a second wall, and a third wall, a first guide rail, and a second guide rail. The first wall can be disposed on a first side of the ground excavation shield. The second wall can be disposed on a second side of the ground excavation shield. The third wall can be disposed on a third side of the ground excavation shield and can be coupled to the first and second walls. The first guide rail can be coupled to a bottom of the first wall and the second guide rail can be coupled to a bottom of the second wall.

Abstract: A method for excavating a ditch and installing an underground pipeline. The method includes excavating a ditch utilizing a predetermined GPS model having grading and alignment requirements for the ditch and the underground pipeline and inserting pipes into the ditch. A laser beam is projected from a laser beam apparatus in association with a first pipe section that utilizes the grading and alignment requirements of the predetermined GPS model to guide excavation and installation of one or more sections of pipes. A remote-controlled vehicle is inserted into the first pipe and is configured to focus the projected laser beam to guide excavation and installation of successive pipe sections. The remote-controlled vehicle is navigated through the pipeline during installation to guide grading of subsequent ditch sections and alignment of additional pipe sections.

Abstract: A watercraft lift with rearward and forward lateral beams, left and right side longitudinal side beams, a pair of left side lifting arms, a pair of right side lifting arms supporting at their upper ends left and right side watercraft supports, and left and right side actuators pivotally attached to the left and right side rearward lifting arms. In one embodiment the left side rearward lifting arm and the left side actuator rotate about their pivotal attachments to the longitundinal left side beam in a left side plane, and the right side rearward lifting arm and the right side actuator rotate about their pivotal attachments to the longitundinal right side beam in a right side plane.

Abstract: A pocket structure for receiving containerized plants is sloped and hung from a wire of a wire basket. The pocket structure includes hooks, an irrigation fitting and corresponding drip channel to transmit water toward the rear of the pocket, and slots in the walls. The mesh units include braces and are sized for shipping. An earth wall is formed of the mesh units and pockets, and includes irrigation tubing.

Abstract: A system for breaking the skin friction between an underground pipe section and the surrounding soil. The system uses a pipe twisting device attached to one end of the pipe section. The pipe twisting device applies a torsional force to the pipe section so as to torsionally deform the pipe section. Such deformation breaks the skin friction between the pipe section and the surrounding soil. After the skin friction is broken along the entire length of the pipe section, an apparatus configured to apply an axial force to the pipe section pulls the pipe section out of the soil.

Abstract: A cable retention and release mechanism includes a cable gripping device including a cable passage. A cable extends through the cable passage. A cable gripping device collar is movably coupled around the cable gripping device. An outer cable gripping device surface is seated against a cable gripping device receiving inner surface preventing movement of the cable gripping device relative to the cable gripping device collar. The cable gripping device receiving inner surface clamps the cable gripping device on the cable and prevents sliding movement of the cable. A jack is movably coupled with the cable gripping device collar. In a first engaged position the jack is engaged against the cable gripping device proximal end. In a second engaged position the jack unseats the outer cable gripping device surface from the cable gripping device receiving inner surface and releases the clamping of the cable.

Abstract: A method of launching an elongate subsea structure such as a pipeline bundle unit into water provides buoyant support to the structure by displacing water with a hollow buoyancy unit that applies buoyant upthrust to the structure. By lowering the buoyancy unit in the water to bring a permanently open aperture of the buoyancy unit beneath a surface level of the water, the buoyancy unit is flooded with water through the or each permanently open aperture to reduce the buoyant upthrust applied to the structure. A corresponding elongate subsea structure is also claimed.

Abstract: A method of installing a hybrid foundation for an offshore wind turbine, the method includes providing a monopile, friction wheel, and suction bucket; installing the friction wheel and suction bucket in the sea floor; and inserting the monopile through the opening into the sea floor.

Abstract: A flexible in-ground shield includes a first wall, a second wall, a third wall, a plurality of shoring members, and a plurality of pivoting couplers. The first wall is disposed on a first side of the flexible in-ground shield, the second wall is disposed on a second side of the flexible in-ground shield, and the third wall is disposed on a third side of the flexible in-ground shield and coupled to the first and second walls. The plurality of shoring members extend between the first wall and the second wall, and the plurality of pivoting couplers, coupled to ends of the plurality of shoring members, respectively, allow the first wall and the second wall to pivot relative to the third wall.

Abstract: A tracer wire holder for use in securing tracer wires along the top of a pipe before burial. The tracer wire holder is comprised of a first section and a second section connected by a flexible planar intermediate section. The first section has generally arcuate outer and inner walls. The second section has generally planar outer and inner walls and a plurality of rib members projecting from the inner wall. Locking means is provided to secure first section with second section in a closed locked position The first and second sections form a cavity for receiving and securing a tracer wire when the first section is secured with the second section.

Abstract: Aspects of a geogrid system and method for improving substrate interactions within a geotechnical environment is disclosed. In one aspect a geotechnical environment is configured with a horizontal multilayer mechanically stabilizing geogrid. In said aspect the geogrid is extruded with a polymeric material and a compressible cellular layer, wherein the geogrid comprises a heightened aspect ratio with a patterned structure of engineered discontinuities and a plurality of strong axes. The combination of elements provides for a system and method of stabilizing soils and aggregate, by resisting lateral movement from the strong axes, and trapping particles in the patterned structure of engineered discontinuities.

Abstract: An apparatus and methods for installation of an offshore platform for supporting equipment installations is provided. The apparatus includes a vertical compression assembly and a counteracting tensioning tendon system. The vertical compression assembly may comprise multiple compression members, a column truss, or other configurations.

Abstract: A mooring system for an Ocean Wave Energy Converters (OWEC) includes multiple structural members such as legs and braces that are linearly extendible and connected using mobile joints, each joint providing two degrees of freedom for rotations about the joint. Mobile joints also attach bottom ends of the legs to mooring points. A jacking system can change lengths of the extensible structural members to adjust depth of the OWEC for operation or for storm safety, to lift the OWEC out of the water for maintenance, or to align the OWEC to an incoming wave direction.

Abstract: Drainage systems are limited in performance and difficult to maintain. A drainage system is therefore specified, comprising at least one infiltration device (10, 40) adapted to receive fluid; a collecting device (30) which is in fluid communication with the at least one infiltration device (10, 40) and is adapted to receive fluid from the at least one infiltration device (10, 40) and to discharge it to a fluid system (4), wherein a gateway device (52) is provided, which is adapted to receive and transmit sensor data to a receiving unit (60); and at least one sensor (6, 6?, 7, 11, 11?, 14, 31, 31?, 32, 33, 41, 44, 42, 45) is provided, which is communicatively connected to the gateway device (52) for providing sensor data.

Abstract: The present application discloses a bionic induction type biological grouting device for uniformly reinforcing foundation soil, comprising an operation table, a rotating shaft and a rotating disc, at least two grouting pipes are arranged in a wall of a spiral guide pipe, a plurality of grout outlet holes are formed in an inner wall of the spiral guide pipe, a plurality of sets of grout spraying holes are formed in an outer wall of the spiral guide pipe in a rotation direction of the spiral guide pipe, and a plurality of adjusting components for controlling opening and closing of each set of grout spraying holes are arranged in the spiral guide pipe, and the plurality of adjusting components are linked through a flexible shaft.