12results about "Railway tunnels" patented technology

System for conveying at least one transport capsule comprising: - a pipe (2) comprising first and second trunk (21, 22) that are reciprocally assembled; - a coating (3) whose function is structural and of at least partially waterproofing the pipe (2) and comprising tensioned ribbon-shaped means (31) that wraps and compresses at least one portion of the pipe (2). The ribbon-shaped means (31 ) is made of fibre-resin composite material and comprises said fibres impregnated in said resin.

This invention discloses a hot-rolled steel sheet for vacuum train tubes that exhibits excellent yield strength, weldability, low-temperature toughness of the welded portion, vibration damping ratio, and is free from hot cracking. The hot-rolled steel sheet according to this invention is characterized in that its alloy composition, by weight percent, comprises: C: less than 0.06% (more than 0%), Si: 0.5-1.5%, Mn: 1.2-2.2%, Cu: 0.5-1.5%, Ni: more than 0.25%, Ti+Nb+V: less than 0.02% (inclusive of 0%), the balance being Fe and unavoidable impurities.

A tube assembly for a transportation system is disclosed. A tube assembly for a transportation system according to an embodiment comprises multiple tubes connected to each other through connection units to provide a traveling space for a traveling body. Each of the multiple tubes may comprise: multiple segmented panels arranged along a circumferential direction to surround the traveling path of the traveling body; and binding units disposed between the multiple segmented panels to bind the segmented panels adjacent to each other in the circumferential direction. The connection units may include restraining rings for restraining the circumferences of longitudinal ends of the tubes in a state in which the segmented panels are bound by the binding units.

To provide an intra-pipe moving robot capable of moving suitably for different pipe diameters.SOLUTION: An intra-pipe moving robot comprises: a movable body that is configured of a plurality of expansion / contraction units connected to one another via connection means, and is provided inside a pipe, the expansion / contraction unit comprising an outer tube formed of an elastic body, an inner tube provided inside the outer tube, and an end member that is provided at each axial end of the outer and inner tubes and forms a closed space together with the inner periphery of the outer tube and the outer periphery of the inner tube, and the expansion / contraction unit axially contracting and radially expanding by supplying a fluid into the closed space, and axially expanding and radially contracting by discharging the fluid from the closed space; and a fluid control device that operates the plurality of connected expansion / contraction units so that they imitate peristaltic motions in the pipe to cause the movable body to generate propulsion power. The fluid control device comprises pipe inner diameter acquisition means for acquiring the inner diameter of the pipe, and propulsion control means configured to be capable of changing timing of the peristaltic motions on the basis of the inner diameter of the pipe.SELECTED DRAWING: Figure 9

This disclosure provides a method and system for protecting the operation of an ultrafast magnetic levitation, low-vacuum tube tunnel in a vacuum environment. The method includes, first, a vacuum tube monitoring system constructing an air diffusion model based on the pressure and air flow velocity within the vacuum tube, and second, a central operation control system controlling the train's operating state by controlling an on-board operation control system with a region-divided operation control system based on the air diffusion model. 。

Disclosed is a tube assembly for a transportation system. A tube assembly for a transportation system, according to an embodiment, comprises: a tube having an interior maintained at a pressure lower than atmospheric pressure and providing a travel path for a moving body; a longitudinal reinforcing member extending in the longitudinal direction of the tube and reinforcing the tube; a plurality of transverse reinforcing members installed along a circumferential direction of the tube to reinforce the tube and spaced apart in the longitudinal direction of the tube; and a support coupled to at least some of the plurality of transverse reinforcing members. The support may form points installed at predetermined intervals along the direction in which the travel path is formed, so as to support the tube assembly for a transportation system.

System for conveying at least one transport capsule comprising:a pipe (2) comprising first and second trunk (21, 22) that are reciprocally assembled;a coating (3) whose function is structural and of at least partially waterproofing the pipe (2) and comprising tensioned ribbon-shaped means (31) that wraps and compresses at least one portion of the pipe (2).The ribbon-shaped means (31) is made of fibre-resin composite material and comprises said fibres impregnated in said resin.

Disclosed is a vacuum valve for gas-tight closing of a valve opening defining an opening axis for a vacuum transport system including a transport tube having a plurality of transport tube segments. The vacuum valve further includes a sealing surface surrounding the valve opening, a closure component having a circumferentially closed integral seal, and a drive unit to open and close the closure component. The seal contacts the sealing surface in a closed position. The closure axis is perpendicular to the opening axis, wherein the progressions of the sealing surface and the seal each have a first and a second main section as well as two side sections, the two main sections lie in planes which are at right angles to the opening axis and are spaced apart from one another, and are connected at two opposite main section sides in each case by one of the side sections.

The present invention relates to a vacuum system (100) comprising an non-permeable tube (1) made of metal, an load bearing tube (2) made of concrete, a plurality of shear studs (3) arranged on outer circumference of the non-permeable tube (1) to increase bonding between the non-permeable tube (1) and the load bearing tube (2), a set of connection flanges (4) for allowing connection of multiple vacuum systems, and one or more clamping members (5) disposed at ends of outer circumference of the load bearing tube (2) for lifting and transportation of the vacuum system (100).

To provide a pipe conveyance device capable of transferring a flexible pipe member in a stable manner in a pipe conduit, and capable of efficiently transferring the pipe member.SOLUTION: A pipe conveyance device 1 is a device that conveys a pipe member to be laid within an existing pipe conduit. The pipe conveyance device 1 has a rod-shaped pipe support member 11 that penetrates and supports a flexible pipe member, and pipe conveyance members 12A, 12B that support the pipe support member 11 in a detachable manner and can convey the supported pipe support member 11. While supporting the pipe support member 11 within an existing pipe conduit, the pipe conveyance members 12A, 12B convey the pipe member 50 supported by the pipe support member 11 along an axial direction of the pipe conduit.SELECTED DRAWING: Figure 1

The application discloses a running mechanism for a tube-rail carrying platform and the tube-rail carrying platform, and relates to the technical field of logistics vehicles.The running mechanism comprises a bogie.The bogie is at least one, and the bogie comprises an axle bridge, wheels located at two ends of the axle bridge and a traction device.The wheels can rotate relative to the axle bridge.The traction device is rotatably arranged on the axle bridge.The traction device is used for connecting the axle bridge to a vehicle body of the tube-rail carrying platform, and the traction device can allow the axle bridge and the vehicle body to relatively displace along an axial direction of the axle bridge.The running mechanism for the tube-rail carrying platform can realize the adaptation and fusion of the wheel-rail and the magnetic levitation tube-rail carrying platform, effectively transmit traction force and braking force, improve the small curve passing capacity and turnout efficiency of the tube-rail carrying platform, shorten the switching waiting time of the traditional magnetic levitation turnout, and thus improve the multi-working-condition adaptability of the tube-rail carrying platform in a narrow space.