An off-shore port system includes a land-based port infrastructure area, an off-shore cargo ship docking area located in a body of water, and a transportation system having at least one tube connecting the land-based port infrastructure area and the off-shore cargo ship docking area.

An off-shore port system includes a land-based port infrastructure area, an off-shore cargo ship docking area located in a body of water, and a transportation system having at least one tube connecting the land-based port infrastructure area and the off-shore cargo ship docking area.

The present application discloses a prestressed tube section structure and a construction method thereof. The prestressed tube section structure includes multiple successively connected segments. A shear-resistant structure and a water stop system are arranged between two segments; multiple prestressing tendons are arranged in the tube section along the circumferential direction of the tube section; and each prestressing tendon is communicated along the longitudinal direction of the tube section, and is partitioned into multiple sections at a position close to a segment joint. By the arrangement of the multiple successively connected segments of the present application, the shear-resistant structure and the water stop system are arranged between the two segments, so that a portion between two segments may bear a shear force and have watertightness; the arrangement of the multiple prestressing tendons in the tube section enables the multiple segments to be connected in series and spliced into a whole; in addition, each prestressing tendon is partitioned into multiple sections at the position close to each segment joint, so that the tube section has higher flexibility on the premise of not losing the overall rigidity, and the loading capacity and deformability of each segment are effectively improved; and a proper pressure is applied between two segments, so that the tube section has higher deformability to adapt to a subsea foundation bed.

A method for manufacturing at least one transportation tube having a plurality of transportation tube sections for a high-speed transportation system. The method includes manufacturing the tube sections in-situ adjacent to an approximate path of the transportation system where the tube sections are to be positioned.

A method for manufacturing at least one transportation tube having a plurality of transportation tube sections for a high-speed transportation system. The method includes manufacturing the tube sections in-situ adjacent to an approximate path of the transportation system where the tube sections are to be positioned.

A structure having at least one flexible material structured and arranged to withstand a tensile load, at least one support structure configured to support the flexible material and structured and arranged to withstand a compressive load, and at least one enclosed volume at least partially defined by the at least one flexible material, the at least one enclosed volume being configured to be maintained as a low-pressure environment.

Method for producing a construction element, in particular a tunnel element, from a curing material, such as concrete, in a mold, said construction element being provided with a watertight seal on at least one side thereof, wherein a gasket is used comprising a deforming body which is produced from a yielding material, such as rubber. According to the invention a base is produced from a relatively strong material, which base may or may not be detachable from the deforming body. Said base with or without said deforming body is placed against an inner side of the mold, said curing material is cast in the mold, and said curing material is cured to form said construction element with said watertight seal.

Method for producing a construction element, in particular a tunnel element, from a curing material, such as concrete, in a mold, said construction element being provided with a watertight seal on at least one side thereof, wherein a gasket is used comprising a deforming body which is produced from a yielding material, such as rubber. According to the invention a base is produced from a relatively strong material, which base may or may not be detachable from the deforming body. Said base with or without said deforming body is placed against an inner side of the mold, said curing material is cast in the mold, and said curing material is cured to form said construction element with said watertight seal.

The present application relates to an installation method for a closure joint of an immersed tunnel, and belongs to the technical field of closure joints; the installation method comprises the steps: establishing a first coordinate system; distributing feature points; installing the N.sub.+2 tube coupling; installing an N.sub.+1 tube coupling and pushing out a push-out segment; wherein, the first coordinate system is established at a tail end of an N.sub.+3 tube coupling, breakthrough points N.sub.+1S and N.sub.+1W are distributed at a head end and a tail end of a N.sub.+1 tube coupling respectively, breakthrough points DS and DW are distributed at a push-out segment, and breakthrough points N.sub.+2S and N.sub.+2W are distributed at a head end and a tail end of a N.sub.+2 tube coupling respectively; and coordinates of the breakthrough points DS, DW, N.sub.+1S, N.sub.+1W, N.sub.+2S, N.sub.+2W in the first coordinate system are calculated respectively; the installation method can improve the installation accuracy of the closure joint and is easy to operate.

A high-speed transportation system, the system including at least one transportation tube having at least one track, at least one capsule configured for travel through the at least one tube between stations, a propulsion system for the at least one capsule; and a levitation system for levitating the capsule in the tube.