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Construction method of vacuum maglev prefabricated pipeline beam

A prefabricated assembly and construction method technology, applied in the erection/assembly of bridges, roads, bridges, etc., can solve problems such as difficulty in applying the structural size and weight of pipeline beams, large pipeline size and inability to transport, etc., to facilitate later maintenance and localization. Replacement, lower overall construction cost, reduced set-up effect

Active Publication Date: 2021-07-27
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art that the direct hoisting and erection method through longitudinal segmentation is difficult to apply to the structural size and structural weight of the pipeline beams of the actual operating line, and the pipeline size is too large to be transported, etc., and provides a Construction method of vacuum maglev prefabricated pipeline beam

Method used

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  • Construction method of vacuum maglev prefabricated pipeline beam
  • Construction method of vacuum maglev prefabricated pipeline beam
  • Construction method of vacuum maglev prefabricated pipeline beam

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Embodiment 1

[0037] According to the construction method of the vacuum maglev prefabricated pipeline beam according to the present invention, the pipeline beam structure includes an upper component 1 and a lower component 2, such as Figure 1-6 As shown, the upper layer member 1 is an arc-shaped member, and the outer wall of the upper layer member 1 is provided with stiffeners 6 at intervals. For example, one stiffener 6 is set at an interval of 3-5m, and the upper layer member 1 can adopt a circular arc structure , preferably, straight sections are respectively provided at the two ends of the upper member 1 connected to the lower member 2, so as to facilitate the setting of grooves connecting the boss 3, the lower member 2 is U-shaped, and the bottom plate of the lower member includes Plane section and arc section, the bottom plate thickness of the lower member 2 is thicker than the web thickness on both sides, the upper member 1 and the lower member 2 can be spliced ​​into a closed tubula...

Embodiment 2

[0047] The construction method of the vacuum maglev prefabricated pipeline beam according to the present invention has the same construction steps as that of Embodiment 1, the difference is that the lower member 2 is constructed in a cast-in-place manner, that is, only the prefabricated The upper member 1, and the positioning groove plate 4 is installed on its inner wall to form the groove, and the existing cast-in-place beam construction method is adopted at the construction site, that is, all the lower members 2 are sequentially poured on the pier, and The bosses 3 are formed on the top surfaces of the two webs of the lower member 2 .

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Abstract

The invention relates to the technical field of vacuum high-speed maglev transportation, and discloses a construction method for vacuum maglev prefabricated pipeline beams. The vacuum maglev pipeline beams are formed by prefabricating the upper and lower components respectively, which effectively reduces the height of the single structure. It solves the problem of limited transportation caused by the large size of the overall structure of the pipeline beam, and realizes the possibility of long-distance transportation and hoisting with existing equipment. The upper and lower members are prefabricated separately, and different materials can be used, which is beneficial to reduce the overall construction cost, effectively simplify the construction difficulty, improve the safety of the hoisting process, facilitate construction operations, and can be applied to various environmental conditions such as large rivers, deep ditches and canyons, which is conducive to improving installation efficiency and installation accuracy, reliable sealing, and convenient track beam Installation is conducive to reducing the height of the track beam, reducing the setting of auxiliary installation components, and facilitating later maintenance and partial replacement.

Description

technical field [0001] The invention relates to the technical field of vacuum high-speed maglev transportation, in particular to a construction method of a vacuum maglev prefabricated pipeline beam. Background technique [0002] Vacuum high-speed maglev transportation technology is a combination of vacuum pipeline and maglev technology. Due to the breakthrough of air resistance, noise and wheel-rail adhesion and other constraints, the speed can reach 600~1000km / h, filling the gap between high-speed rail and air transportation. Speed ​​blank area; with the breakthrough of high-power traction drive technology, it can reach 1000km / h and above, or even supersonic or double the speed of sound, and become the long-distance urban or ultra-long-distance intercontinental transportation that will make up for or replace aviation in the future model. [0003] Most of the existing maglev traffic pipeline girders are circular steel pipe structures, which are either placed on the ground o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61B13/10E01D21/00
CPCB61B13/10E01D21/00
Inventor 杨国静董俊张茂帆王应良曾永平宋晓东郑晓龙陶奇游励晖袁明苏延文庞林徐昕宇周川江颜永逸刘力维陈星宇
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD