CN216378953U - Magnetic suspension track beam system laid in tunnel - Google Patents
Magnetic suspension track beam system laid in tunnel Download PDFInfo
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- CN216378953U CN216378953U CN202122196762.1U CN202122196762U CN216378953U CN 216378953 U CN216378953 U CN 216378953U CN 202122196762 U CN202122196762 U CN 202122196762U CN 216378953 U CN216378953 U CN 216378953U
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Abstract
The utility model discloses a magnetic suspension track beam system laid in a tunnel, which comprises: the pedestal is arranged at the bottom of the tunnel; a plurality of groups magnetic levitation track roof beam, through the support mounting on the pedestal and the magnetic levitation track roof beam includes: the two inverted L-shaped unit beams are provided with top plates and web plates, and the top plates are flush with the open sides of the inverted L-shaped unit beams in a mode that the open sides of the inverted L-shaped unit beams are opposite; and the transverse connecting beams are arranged between the two inverted L-shaped unit beams at intervals and are connected with webs of the two inverted L-shaped unit beams to form a U-shaped section. The magnetic suspension vehicle is embedded in the track beam to run, the whole structure is small in height, the required tunnel section is small, and the construction cost is low. Only need carry out pedestal concrete placement after forming the pedestal skeleton with tunnel segment embedded steel bar with on-the-spot ligature reinforcing bar, the simple cost of construction is low, and the concrete volume is little, and the headroom requirement is more excellent, and adopts the support to be connected between transverse connection roof beam and the pedestal, and linear adjustment in later stage, maintenance and change are all realized easily.
Description
Technical Field
The utility model relates to the technical field of magnetic suspension track traffic, in particular to a magnetic suspension track beam system paved in a tunnel.
Background
The medium-low speed magnetic suspension traffic is a medium-traffic track traffic mode in which a running device of a magnetic suspension vehicle is embedded in a track beam and the running of the vehicle is realized by utilizing the electromagnetic induction principle that like poles repel each other and opposite poles attract each other. Compared with the traditional wheel-rail traffic system, the magnetic suspension traffic system has the advantages of strong adaptability, low energy consumption, low noise, less land occupation resources, high safety, low maintenance cost and the like. In recent years, powerful advantages of the method are gradually shown in medium and small cities, intercity railways and tourist attractions.
The existing medium-low speed magnetic suspension traffic system mainly has the following laying modes: the two types of the pavement low-lying structure and the viaduct girder structure are not reasonable sections for the type paved in the tunnel, if the section of the track girder in the viaduct area is still adopted, the section of the tunnel is inevitably large, the construction cost is increased, and the erection, linear adjustment, maintenance and replacement of the track girder are not convenient. The utility model is little influenced by external factors, has competitive advantages in a clearance arrangement area, has small construction difficulty and small structure size, greatly reduces the engineering quantity compared with the prior method, effectively saves the engineering investment and has better economy.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a magnetic suspension track beam system which is simple in construction, low in cost, convenient to overhaul, maintain and replace and suitable for laying a magnetic suspension track in a tunnel.
The utility model provides a magnetic suspension track beam system laid in a tunnel, which comprises:
the pedestal is arranged at the bottom of the tunnel;
a plurality of sets of magnetically levitated track beams mounted on the pedestal by supports and each set comprising:
two pieces of inverted L-shaped unit beams respectively provided with a top plate parallel to the plane of the pedestal and a web plate substantially perpendicular to the top plate, wherein the two pieces of inverted L-shaped unit beams are arranged in a manner that the top plates are flush and the open sides of the inverted L-shaped unit beams are opposite;
and the transverse connecting beams are arranged between the two inverted L-shaped unit beams at intervals and are connected with webs of the two inverted L-shaped unit beams to form a C-shaped section.
Further, the pedestal comprises a pedestal framework and a concrete pouring material, wherein the pedestal framework is formed by binding tunnel segment embedded steel bars and field binding steel bars, and the concrete pouring material is poured on the pedestal framework to form the pedestal.
Furthermore, one end of the support is connected with the top of the pedestal, and the other end of the support is connected with the bottom of the transverse connecting beam of the magnetic levitation track beam.
Further, the mounting area of the support is set to be a boss or a step, and the support is selected from one of a fixed support, a one-way movable support, a multi-way movable support and a height-adjustable support.
Furthermore, the inverted L-shaped unit beam and the transverse connecting beam are prefabricated in a factory and assembled and constructed on site to obtain the magnetic levitation track beam.
Further, the magnetic levitation track beam system further comprises a track arranged on the magnetic levitation track beam, the track comprises an induction track and a power supply track which are oppositely arranged, the induction track is arranged on an induction track installation surface at the bottom of the top plate of the inverted L-shaped unit beam, and the power supply track is arranged on power supply track installation surfaces at the tops of two sides of the transverse connecting beam.
Furthermore, the transverse connecting beams are uniformly arranged in the longitudinal direction of the magnetic suspension track beam system at intervals, two power supply track installation surfaces for installing tracks are symmetrically arranged along the transverse direction of the transverse connecting beams, and the power supply cabinet installation surface is opposite to the induction track installation surface at the bottom of the top plate of the inverted L-shaped unit beam.
Further, a drain is formed on the pedestal, the drain being provided in a middle region of the upper surface of the pedestal and being provided lower than the mounting region of the support, both of which are transited through a lateral drain slope.
Further, the pedestals are arranged at intervals or continuously, and the magnetic levitation track beam is mounted on the pedestals through at least two supports at least two ends.
Compared with the conventional scheme, the magnetic suspension track beam system laid in the tunnel has the following beneficial effects:
1) compared with the traditional medium-low speed magnetic levitation track beam in China, the magnetic levitation vehicle is embedded in the track beam, the required tunnel section is small, the advantage is obvious in a clearance setting area, the construction is easy, the amount of concrete used in the mode that transverse connecting beams are uniformly arranged at intervals is smaller, and the engineering economy is better.
2) Compared with the integral pouring of the track beam and the tunnel inner structure, the method has the advantages that the concrete pouring of the pedestal is carried out only after the pre-embedded steel bars of the tunnel segment and the on-site binding steel bars form the pedestal framework, the construction is simple, the manufacturing cost is low, and the track beam and the pedestal are connected by the support, so that the later-stage linear adjustment, the overhaul, the maintenance and the replacement of the track beam are facilitated.
3) The length of the track beam can be flexibly selected according to the line condition, and the track beam has light self weight and is convenient to polish, transport, hoist and erect.
4) The inverted L-shaped unit beam and the transverse connection beam are prefabricated in a factory mode, construction and installation are conducted on the site, the site construction efficiency is improved, the influence of construction on the surrounding environment and the construction cost are reduced, the transverse connection beams arranged at intervals are connected with the inverted L-shaped unit beam, and the weight can be reduced while the structural strength is guaranteed.
Drawings
Fig. 1 shows a schematic cross-sectional structure of a magnetic levitation track beam system laid in a tunnel according to an exemplary embodiment of the present invention.
Fig. 2 is a schematic diagram showing the arrangement structure of pedestal frameworks in a magnetic levitation track beam system laid in a tunnel according to an exemplary embodiment of the utility model.
Fig. 3 shows a partially enlarged schematic view of fig. 2.
Fig. 4 is a schematic diagram illustrating a planar arrangement structure of magnetically levitated track beams in a system of magnetically levitated track beams laid in a tunnel according to an exemplary embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view illustrating a magnetically levitated track beam in a magnetically levitated track beam system laid in a tunnel according to an exemplary embodiment of the present invention.
Description of reference numerals:
the method comprises the following steps of 1-magnetic floating track beam, 101-top plate, 102-web plate, 103-transverse connecting beam, 104-induction track, 105-power supply track, 2-pedestal, 201-tunnel segment embedded steel bar, 202-field binding steel bar, 3-support, 4-drainage ditch and 5-tunnel segment.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The following first describes the magnetic suspension track beam system laid in the tunnel in detail. If not specifically stated, the transverse direction is the y direction shown in the figure, namely the width direction of the magnetic suspension track beam system; the longitudinal direction is the x direction shown in the figure, namely the length direction of the magnetic suspension track beam system; the vertical direction is the z direction shown in the figure, namely the height direction of the magnetic suspension track beam system.
Fig. 1 is a schematic cross-sectional structural view illustrating a magnetic levitation track beam system laid in a tunnel according to an exemplary embodiment of the present invention, and fig. 2 is a schematic layout structural view illustrating a pedestal skeleton in the magnetic levitation track beam system laid in the tunnel according to an exemplary embodiment of the present invention.
As shown in fig. 1 and 2, according to an exemplary embodiment of the present invention, the magnetic levitation track beam system laid in the tunnel includes a pedestal 2 and a plurality of sets of magnetic levitation track beams 1 composed of inverted L-shaped unit beams and transverse connection beams 103, the pedestal 2 is disposed at the bottom of the tunnel to support and mount the magnetic levitation track beam system, and the plurality of sets of magnetic levitation track beams 1 are mounted on the pedestal 2 through a support 3. The magnetic suspension track beam system is a magnetic suspension track beam system which is characterized in that a running device of a magnetic suspension vehicle is embedded in a magnetic suspension track beam and the running of the vehicle is realized by utilizing the electromagnetic induction principle that like poles repel each other and opposite poles attract each other.
The magnetic levitation track beam adopts a structure different from that of the prior art, and specifically comprises two inverted L-shaped unit beams and a transverse connecting beam 103, wherein each inverted L-shaped unit beam is provided with a top plate 101 and a web plate 102, and the two inverted L-shaped unit beams are arranged in a manner that the top plates 101 are flush and the opening sides of the inverted L-shaped unit beams are opposite to each other, so that a space for accommodating a running mechanism of a magnetic levitation vehicle is formed. The transverse connecting beams 103 are arranged between the two inverted L-shaped unit beams at intervals and connected with the webs 102 of the two inverted L-shaped unit beams to form a U-shaped section, and the internal space of the magnetic levitation track beam enclosed by the inverted L-shaped unit beams and the transverse connecting beams 103 can contain the running part of the magnetic levitation vehicle to realize vehicle running.
The transverse beam area is formed by uniformly arranging the plurality of transverse connecting beams 103 at intervals along the longitudinal direction, wherein the quantity and the length of the transverse connecting beams 103 at intervals can be reasonably designed according to the length of the track beam structure, and compared with the through design of a post-cast strip of the traditional transverse connecting beam, the transverse stability of the track beam structure can be ensured, the consumption of concrete can be reduced, and the economic efficiency is higher.
Fig. 4 is a schematic diagram illustrating a planar arrangement structure of magnetically levitated track beams in a system of magnetically levitated track beams laid in a tunnel according to an exemplary embodiment of the present invention.
As shown in fig. 2 and 4, the transverse connection beams 103 are uniformly spaced in the longitudinal direction of the magnetic levitation track beam system, and the transverse connection beams 103 are provided with two power supply track mounting surfaces of the mounting track along the transverse symmetry, and the power supply track mounting surfaces are arranged opposite to the induction track mounting surfaces at the bottom of the top plate of the inverted L-shaped unit beam.
Fig. 3 shows a partially enlarged schematic view of fig. 2.
As shown in fig. 2 and 3, the pedestal 2 of the present invention includes a pedestal framework and a concrete casting, further, the pedestal framework is formed by binding tunnel segment embedded steel bars 201 and field binding steel bars 202, and the concrete casting is poured on the pedestal framework to form the pedestal 2. That is, the pedestal 2 in the present invention is preferably connected with the tunnel in a fixed connection manner, and the arrangement area, the diameter of the steel bar, the distance, the embedded length, etc. of the pedestal framework in the pedestal 2 can be designed reasonably according to the length of the track beam.
In the utility model, one end of a support 3 is connected with the top of a pedestal 2, the other end of the support 3 is connected with the bottom of a magnetic floating track beam 1, and further, the other end of the support 3 is connected with the bottom of a transverse connecting beam 103 of the magnetic floating track beam. The support 3 in the utility model is selected from one of a fixed support, a one-way movable support, a multi-way movable support and a height-adjustable support according to a structural system. The mode of connecting through above-mentioned support is favorable to orbital hoist and mount, erects, also is favorable to the linear adjustment of later stage track roof beam, overhauls, maintains and changes.
Preferably, the elevation of the top surface of the pedestal in the mounting area of the pedestal should be higher than that of the non-mounting area, and the two are transited by a transverse drainage slope, for example, the mounting area of the pedestal can be provided in a higher structural form such as a boss or a step.
Further, the pedestals 2 of the present invention are arranged at intervals or continuously, and the magnetic levitation track beam 1 is fixedly mounted on the pedestals 2 at least two ends by at least two respective mounts 3. The utility model does not limit the size of the magnetic floating track beam, the length is preferably 2-12 m, the structure is preferably a reinforced concrete structure, and the size can be reasonably selected according to the line condition.
Preferably, the inverted-L-shaped unit beam and the transverse connecting beam are prefabricated in a factory and assembled and constructed on site to obtain the magnetic floating track beam. For example, the inverted-L-shaped unit beam is poured and maintained and molded in a mold specially designed according to the inverted-L-shaped unit beam structure, and prestressed steel bundles can be arranged in the inverted-L-shaped unit beam according to the structural length of the track beam, and the top plate 101 and the transverse connecting beam 103 are respectively provided with positions for installing and fixing corresponding tracks.
Fig. 5 is a schematic cross-sectional view illustrating a magnetically levitated track beam in a magnetically levitated track beam system laid in a tunnel according to an exemplary embodiment of the present invention.
As shown in fig. 5, the magnetic levitation track beam system further includes a track mounted on the magnetic levitation track beam, the track includes an induction track 104 and a power supply track 105, which are oppositely disposed, wherein the induction track 104 is mounted on an induction track mounting surface at the bottom of the top plate 101 of the inverted L-shaped unit beam, the power supply track 105 is mounted on a power supply track mounting surface at the top of two sides of the transverse connection beam 103, and a running part of the magnetic levitation vehicle can run between the induction track 104 and the power supply track 105.
The track structure and principle of the magnetic levitation track system in the prior art can be adopted for the inductive track 104 and the power supply track 105, which are not described herein. Because the rail installation needs to ensure certain precision, the induction rail installation surface and the power supply rail installation surface need to be machined according to the precision requirement and the direction of a space route to meet the precision requirement.
In addition, the top plate 101 of the inverted L-shaped unit beam is preferably provided with track mounting holes in advance to ensure the requirement of transverse installation of the track, the track mounting holes are longitudinally arranged at certain intervals in the length direction of the track beam structure, and the specific distance is calculated and determined according to the running requirement of the magnetic levitation vehicle.
After the power supply rail 104 and the induction rail 105 are respectively installed on the rail installation surface of the magnetic suspension rail beam system, the clear distance between the induction rail 105 and the power supply rail 104 needs to be finely adjusted to meet the suspension requirement of the magnetic suspension vehicle. The running mechanism of the magnetic levitation vehicle is embedded between the induction rail 104 and the power supply rail 105 which are arranged in the track beam structure, so that the overall height of the structure is reduced, and the magnetic levitation vehicle has strong advantages in a clearance limited area.
As shown in fig. 1, the pedestal 2 is preferably formed with a drain 4, the drain 4 being provided in a central region of the upper surface of the pedestal 2 and being disposed lower than the pedestal mounting region, both of which are transited by a lateral drain slope so as to effect drainage of water leaking in the tunnel.
The present invention will be further described with reference to the following specific examples.
As shown in fig. 1 and 4, the magnetic levitation track beam in the magnetic levitation track beam system laid in the tunnel of the present invention is installed on the pedestal in the tunnel through a support, and the magnetic levitation track beam system includes a plurality of sets of magnetic levitation track beams and tracks, including structural members such as inverted L-shaped unit beams and transverse connection beams.
Wherein, the prefabricated production of mill is adopted to shape of falling L unit roof beam and transverse connection roof beam, and the uniform interval of transverse connection roof beam sets up between two shape of falling L unit roof beams and connects two shape of falling L unit roof beams and form the U-shaped section, and the installation accuracy of gauge, pincers gauge is controlled strictly in the assembling process. The length of the magnetic floating track beam can be reasonably designed according to the trend, the radius, the gradient and the like of a circuit in the tunnel. In the embodiment, the magnetic floating track beam is prefabricated and polished in a factory, high-quality production of the track in the factory is realized, the field installation operation time is short, the installation precision is easy to control, and the risk of being influenced by field pouring is reduced.
As shown in fig. 1, the magnetic levitation track beam is mounted on the pedestal through a support, one end of the support is connected with the top of the pedestal, and the other end is connected with the bottom of the transverse connection beam of the magnetic levitation track beam. The mode has small installation difficulty and wide application range, and is favorable for linear adjustment, overhaul, maintenance and replacement of the track beam in the later period.
As shown in fig. 2 and 3, the pedestal poured on the bottom of the tunnel is composed of a pedestal framework and a concrete pouring material, the pedestal framework is composed of tunnel segment embedded steel bars 201 and field binding steel bars 202, and the arrangement region, the diameter of the steel bars, the distance, the embedded length and the like of the pedestal framework can be reasonably designed according to the length of the track beam.
As shown in fig. 5, the magnetic levitation track beam is composed of a transverse connection beam and an inverted L-shaped unit beam, the inverted L-shaped unit beam comprises a top plate and a web plate, the induction track is installed on an induction track installation surface at the bottom of the top plate, the power supply track is installed on power supply track installation surfaces at the tops of two sides of the transverse connection beam, and the induction track installation surface and the power supply track installation surface are machined to meet the track installation accuracy requirement.
In the embodiment, the running device of the magnetic levitation vehicle is embedded between the induction rail and the power supply rail which are arranged on the magnetic levitation rail beam, so that the running of the magnetic levitation vehicle is realized, the height of the whole structure is low, the section of the tunnel can be reasonably reduced, the civil engineering cost is reduced, and the construction of a magnetic levitation rail system in the tunnel is facilitated.
The above description is only an embodiment of the present invention, and the present invention is not limited to the foregoing embodiment. Any changes or substitutions that may be easily conceived by a person skilled in the art within the technical scope of the present disclosure are intended to be covered by the scope of the present disclosure, which is defined by the claims.
Claims (9)
1. A magnetic levitation track beam system laid in a tunnel, the magnetic levitation track beam system comprising:
the pedestal (2), the pedestal (2) is arranged at the bottom of the tunnel;
a plurality of groups of magnetic levitation track girders (1), the magnetic levitation track girders (1) are mounted on the pedestal (2) through supports (3) and each group of the magnetic levitation track girders (1) includes:
two pieces of inverted L-shaped unit beams respectively provided with a top plate (101) parallel to the plane of the pedestal and a web plate (102) substantially perpendicular to the top plate (101), wherein the two pieces of inverted L-shaped unit beams are arranged in a manner that the top plates (101) are flush and the open sides of the inverted L-shaped unit beams are opposite;
the transverse connecting beams (103) are arranged between the two pieces of inverted L-shaped unit beams at intervals and are connected with webs (102) of the two pieces of inverted L-shaped unit beams to form a C-shaped section.
2. The magnetic levitation track beam system laid in the tunnel according to claim 1, wherein the pedestal (2) comprises a pedestal framework formed by binding tunnel segment embedded steel bars (201) and on-site binding steel bars (202) and concrete casting poured on the pedestal framework to form the pedestal (2).
3. The system of the magnetic levitation track beam laid in the tunnel according to claim 1, wherein one end of the support (3) is connected with the top of the pedestal, and the other end of the support (3) is connected with the bottom of the transverse connecting beam (103) of the magnetic levitation track beam.
4. The magnetic suspension track beam system laid in the tunnel according to claim 3, wherein the mounting area of the support (3) is provided as a boss or a step, and the support (3) is selected from one of a fixed support, a unidirectional movable support, a multidirectional movable support and a height-adjustable support.
5. The magnetic levitation track beam system laid in the tunnel according to claim 1, wherein the inverted L-shaped unit beam and the transverse connecting beam (103) are prefabricated in a factory and assembled on site to obtain the magnetic levitation track beam.
6. The system of the magnetic levitation track beam laid in the tunnel according to claim 1, further comprising a track mounted on the magnetic levitation track beam, wherein the track comprises an induction track (104) and a power supply track (105) which are oppositely arranged, wherein the induction track (104) is mounted on an induction track mounting surface at the bottom of the top plate of the inverted L-shaped unit beam, and the power supply track (105) is mounted on a power supply track mounting surface at the top of two sides of the transverse connecting beam.
7. The magnetic levitation track beam system laid in the tunnel according to claim 6, wherein the transverse connecting beams (103) are arranged at regular intervals in the longitudinal direction of the magnetic levitation track beam system, the transverse connecting beams (103) are provided with two power supply rail mounting surfaces of a mounting rail along the transverse symmetry, and the power supply rail mounting surfaces are arranged opposite to the induction rail mounting surfaces at the bottom of the top plate of the inverted L-shaped unit beam.
8. The magnetic levitation railway beam system laid in the tunnel according to claim 4, wherein the pedestal (2) is formed with a drainage ditch (4), the drainage ditch (4) is provided in the middle region of the upper surface of the pedestal (2) and is provided lower than the mounting region of the support (3), and both are transited by a lateral drainage slope.
9. The system of magnetic levitation track beam laid in tunnel according to claim 1, characterized in that the pedestals (2) are arranged at intervals or continuously, and the magnetic levitation track beam (1) is mounted on the pedestals (2) at least two ends by at least two supports (3) each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122196762.1U CN216378953U (en) | 2021-09-10 | 2021-09-10 | Magnetic suspension track beam system laid in tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122196762.1U CN216378953U (en) | 2021-09-10 | 2021-09-10 | Magnetic suspension track beam system laid in tunnel |
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| CN216378953U true CN216378953U (en) | 2022-04-26 |
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| CN202122196762.1U Active CN216378953U (en) | 2021-09-10 | 2021-09-10 | Magnetic suspension track beam system laid in tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305749A (en) * | 2022-10-11 | 2022-11-08 | 成都西交华创科技有限公司 | High-temperature superconducting magnetic suspension traffic track slab and braking method thereof |
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2021
- 2021-09-10 CN CN202122196762.1U patent/CN216378953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305749A (en) * | 2022-10-11 | 2022-11-08 | 成都西交华创科技有限公司 | High-temperature superconducting magnetic suspension traffic track slab and braking method thereof |
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Effective date of registration: 20220802 Address after: 611430 No. 99, Xingyuan Third Road, Wujin street, Xinjin District, Chengdu, Sichuan Patentee after: Sichuan development Maglev Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Xinjin District, Chengdu, Sichuan Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |