Abstract: A boom extension device for a dockside container crane. A boom comprises a rear boom section (11) and a front boom section (12). The extension device comprises: an extension trolley tool (2) which is disposed below the rear boom section (11) and the front boom section (12) during an extension operation, and which comprises a wheel set (21), a trolley frame (22), a construction platform (23), and a movement track (24) disposed on the construction platform; a fits support frame trolley (31) disposed on the movement track (24) and used to carry a boom extension section (41) and guide the boom extension section (41) to move in a first direction; and a second support frame trolley (32) disposed on the movement track (24) and used to carry the front boom section (12) and guide the front boom section (12) to move in a second direction perpendicular to the first direction in a first plane. Further included is an extension method for a boom of a dockside container crane.

Abstract: A pipelay vessel having two pipe string manufacturing lines and a firing line, wherein the pipe string manufacturing lines are designed for simultaneously handling two different pipe outer diameters for use as an inner pipe and an outer pipe respectively. Further, the vessel has a pipe-in-pipe assembly workstation for assembling the inner pipe and the outer pipe in a pipe-in-pipe configuration. The vessel is designed with a lay-out which allows for producing offshore pipe-in-pipe strings from single joints, wherein available space is optimally used and pipe-in-pipe strings can be produced safely offshore.

Abstract: A guide structure is provided for guiding deployment of a pipeline from a hang-off structure through an opening in a vessel during a J-lay operation. The guide structure comprises a port-side guide assembly and a starboard-side guide assembly for engaging and guiding the pipeline below the hang-off structure, wherein the port and star-board-side guide assemblies are independently moveable to engage and guide the pipeline. The guide assemblies may be mounted to traverse on rails provided within the opening.

Abstract: The present application discloses a bearing structural member, a support, a joint assembly and a tube section assembly, wherein the maximum counter force provided by the bearing structural member under an external load is an own designed threshold value, namely when the external load is greater than the designed threshold value of the bearing structural member, the bearing structural member deforms, and provides a counter force equal to the designed threshold value; the support includes at least one bearing structural member; and the joint assembly and the tube section assembly are both equipped with the support. When the external load is not high and is less than the designed threshold value, the bearing structural member may effectively suppress the deformation just like a rigid structural member; when the external load exceeds the designed threshold value, the bearing structural member may deform, and provide a stable counter supporting force less than the external load.

Abstract: A pipelay vessel having two pipe string manufacturing lines and a firing line, wherein the pipe string manufacturing lines are designed for simultaneously handling two different pipe outer diameters for use as an inner pipe and an outer pipe respectively. Further, the vessel has a pipe-in-pipe assembly workstation for assembling the inner pipe and the outer pipe in a pipe-in-pipe configuration. The vessel is designed with a lay-out which allows for producing offshore pipe-in-pipe strings from single joints, wherein available space is optimally used and pipe-in-pipe strings can be produced safely offshore.

Abstract: The present application discloses a dredging system for a pre-paved gravel foundation bed surface in open sea deep water, including a dredging mechanism, which includes a dredging suction head, a power component and a dredging pipeline, wherein the dredging suction head is connected with the dredging pipeline; the dredging pipeline is communicated with the power component; the dredging suction head includes at least one ridge surface suction port and at least one furrow suction port; the openings of all the furrow suction ports are lower than those of all the ridge surface suction ports; a lifting mechanism, which is connected with the dredging suction head and is used for lifting the dredging suction head to the gravel foundation bed surface; a moving mechanism, which is connected with the lifting mechanism and is used for driving the dredging suction head to move within a dredging range of the gravel foundation bed surface.

Abstract: A container terminal includes a shore working area, loading-unloading passages, a yard area and collection-evacuation passages. The shore working area is arranged on the shore, and a ship is docked at the shore. The yard area comprises a plurality of yard units. Spacing areas are formed between adjacent yard units. Each yard unit comprises at least one yard. Each yard unit is arranged with a collection-evacuation passage surrounding the yard. Loading-unloading passages are arranged in the spacing areas between adjacent yard units. The loading-unloading passages connect the yard area and the shore working area. The collection-evacuation passages are arranged in the yard units. The loading-unloading passages and the collection-evacuation passages are in a same horizontal plane but do not intersect with each other.

Abstract: A pipe assembly station for performing operations on a field joint during pipe assembly has an active rail extending around an opening through which the pipe can pass. Tool carriages are arranged to traverse along the active rail and around a periphery of the pipe. The station also comprises a standby position, distanced from the active rail and a switch arranged to transfer the tool carriage from the active rail to the standby position. By providing such a combination of a rail and a standby position, a tool carriage can be brought into position on the active rail to perform a pipe joining operation and can be subsequently set back to the standby position, where it is out of the way of operations taking place on the pipe. Such a switching arrangement allows for more effective use of the limited space around the joint.

Abstract: A guide structure is provided for guiding deployment of a pipeline from a hang-off structure through an opening in a vessel during a J-lay operation. The guide structure comprises a port-side guide assembly and a starboard-side guide assembly for engaging and guiding the pipeline below the hang-off structure, wherein the port and star-board-side guide assemblies are independently moveable to engage and guide the pipeline. The guide assemblies may be mounted to traverse on rails provided within the opening.

Abstract: A field joint transfer system for transferring a hot field joint along a curved path between a tensioner and a stinger during deployment of a pipeline from a pipelay vessel. The system comprises a plurality of adjustable pipe support units defining a curved path between the tensioner and the stinger, wherein one or more of the pipe support units can be moved out of engagement with the pipeline to allow the hot fieldjoint to pass the respective pipe support unit without contact, while maintaining support for the pipeline along the curved path. A mobile pipe support may be provided on an overhead gantry to follow the pipe as it passes along the curved path.

Abstract: A container terminal includes a shore working area, loading-unloading passages, a yard area and collection-evacuation passages. The shore working area is arranged on the shore, and a ship is docked at the shore. The yard area comprises a plurality of yard units. Spacing areas are formed between adjacent yard units. Each yard unit comprises at least one yard. Each yard unit is arranged with a collection-evacuation passage surrounding the yard. Loading-unloading passages are arranged in the spacing areas between adjacent yard units. The loading-unloading passages connect the yard area and the shore working area. The collection-evacuation passages are arranged in the yard units. The loading-unloading passages and the collection-evacuation passages are in a same horizontal plane but do not intersect with each other.

Abstract: The present invention discloses a vehicle goods bracket which is provided at the side of a transport vehicle, and is capable of swinging outward and restoring inward, and which is capable of carrying goods up or down, so as to load and unload for the transport vehicle. The present invention also discloses a vehicle goods bracket set which includes a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle. The present invention further discloses a vehicle goods bracket group, comprising two sets of vehicle goods brackets which are adjacently arranged in the lengthwise direction of the transport vehicle, wherein each set of vehicle goods brackets comprises a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle.

Abstract: Embodiments of the present invention disclose a casing tensioner platform frame kit. The kit comprises frame components, corner connectors, rod components and rod connection components. The frame components and the corner connectors form a hexahedral frame. The rod components are fixed on the front planes and lateral planes of the hexahedral frame via the rod connection components. The frame components, corner connectors, rod components and rod connection components are all removable. Embodiments of the present invention also disclose a casing tensioner platform frame. The casing tensioner platform frame kit and the casing tensioner platform frame assembled by the kit provided by the present invention may be easily assembled or disassembled. The assembly or disassembly is implemented via prefabricated mounting components without any welding. The casing tensioner platform frame kit may be transported in the manner of components and be assembled at field.

Abstract: Embodiments of the present invention disclose a casing tensioner platform frame kit. The kit comprises frame components, corner connectors, rod components and rod connection components. The frame components and the corner connectors form a hexahedral frame. The rod components are fixed on the front planes and lateral planes of the hexahedral frame via the rod connection components. The frame components, corner connectors, rod components and rod connection components are all removable. Embodiments of the present invention also disclose a casing tensioner platform frame. The casing tensioner platform frame kit and the casing tensioner platform frame assembled by the kit provided by the present invention may be easily assembled or disassembled. The assembly or disassembly is implemented via prefabricated mounting components without any welding. The casing tensioner platform frame kit may be transported in the manner of components and be assembled at field.