CN216381384U - High-speed magnetic levitation shield tunnel cross section structure - Google Patents
High-speed magnetic levitation shield tunnel cross section structure Download PDFInfo
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- CN216381384U CN216381384U CN202122380855.XU CN202122380855U CN216381384U CN 216381384 U CN216381384 U CN 216381384U CN 202122380855 U CN202122380855 U CN 202122380855U CN 216381384 U CN216381384 U CN 216381384U
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Abstract
The utility model belongs to the technical field of tunnel engineering, and particularly relates to a cross section structure of a high-speed magnetic suspension shield tunnel, which comprises a segment lining ring, a support and a track beam; the bottom in the segment lining ring is filled with an inverted arch; the top surface of the inverted arch filling is in a high-low step shape and comprises a high step surface, a low step surface and a step side surface for connecting the high step surface and the low step surface; a plurality of supports are arranged on the low step surface at intervals along the line direction, and a track beam is supported on each support; the high step surface is provided with a rescue channel and is the bottom surface of the rescue channel. The high-speed magnetic suspension train has the advantages that the plurality of support supporting track beams are arranged on the low step surface, and the track beams are adopted to support the high-speed magnetic suspension train, so that the adaptability of the high-speed magnetic suspension line to poor stratum conditions is greatly improved, the operation safety and the service life of the high-speed magnetic suspension train are improved, the high platform is favorable for reducing the height difference between the rescue channel and passengers for evacuating and passing through the train door, and the rescue difficulty is reduced.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, and particularly relates to a cross section structure of a high-speed magnetic suspension shield tunnel.
Background
The only conventional high-speed magnetic levitation project in China at present is a Pudong high-speed magnetic levitation demonstration line in Shanghai built and operated in 2002, the overall length of a line is about 30km, the highest operation speed is 430 km per hour, a tunnel section is not included, the standard section of a high-speed railway tunnel with the speed of 350km per hour is the largest high-speed railway tunnel section in China, only a magnetic levitation test line in Japan sorb county in the world has a built and tested tunnel project, and the speed per hour in the tunnel is 603 km.
The aerodynamic effect of the tunnel of the high-speed magnetic-levitation railway is very obvious, the dynamic action of the train and the ambient air is obviously intensified along with the improvement of the running speed of the train, on one hand, the aerodynamic effect has an effect on the train and the running of the train, and on the other hand, the aerodynamic effect caused by the high-speed running of the train has an effect on the ambient environment. Particularly, under the conditions that the motor train unit passes through the tunnel at a high speed and meets the train in the tunnel, the diffusion space of the pressure wave is limited, the pressure wave can be transmitted back and forth and repeatedly superposed in the limited space, complex and violent pneumatic effects and transient pneumatic loads are generated, the conditions that the train shakes, the side wall deforms, the air pressure in the train rapidly changes, the ear drum of a passenger is uncomfortable and the like are caused, and the running stability and the safety of the train are seriously even influenced. Therefore, it is necessary to research the sectional structure of the high-speed magnetic levitation track traffic tunnel with a speed of 400 km/h or more.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a cross section structure of a high-speed magnetic levitation shield tunnel, which meets the requirements of a track beam, an evacuation rescue space, a maintenance space and a pipeline installation space of a high-speed magnetic levitation track traffic tunnel with the speed per hour of more than 400 kilometers.
In order to achieve the purpose, the technical scheme of the utility model is a cross section structure of a high-speed magnetic suspension shield tunnel, which comprises a segment lining ring, a support and a track beam; the bottom in the segment lining ring is filled with an inverted arch; the top surface of the inverted arch filling is in a high-low step shape and comprises a high step surface, a low step surface and a step side surface for connecting the high step surface and the low step surface; a plurality of supports are arranged on the low step surface at intervals along the line direction, and a track beam is supported on each support; and a rescue channel is arranged on the high step surface, and the high step surface is the bottom surface of the rescue channel.
Furthermore, the side surface of the rescue channel close to the high-speed maglev train is flush with the side surface of the step, and the side surface of the step and the outer side surface of the train door on one side of the high-speed maglev train close to the rescue channel are in the same plane.
Further, the support is in the form of a double limb comprising a base plate, a first limb and a second limb; the first limb and the second limb are respectively connected with two sides of the bottom plate, and a maintenance space is arranged between the first limb and the second limb.
Furthermore, a low-voltage cable trough and a central ditch are arranged on the low step surface, and a high-voltage cable trough, a ring network cable trough and a communication signal cable trough are arranged on the high step surface; the low-voltage cable duct, the central ditch, the high-voltage cable duct, the looped network cable duct and all cover on the communication signal cable duct and be equipped with the apron.
Furthermore, the central ditch is arranged on the low step surface and close to the center line of the tunnel structure, and the low-voltage cable trough is positioned on one side of the central ditch, which deviates from the side surface of the step.
Furthermore, the track beam is of a hollow structure and is shaped like a Pi.
Further, the central line of the track beam is coincident with the central line of the tunnel structure or keeps a certain distance with the central line of the tunnel structure.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the inverted arch of the stepped high-low platform is adopted for filling, the low platform is favorable for entering and exiting a maintenance space below the support, the maintenance is convenient, the high platform is favorable for reducing the height difference between a rescue channel and a passenger evacuation passing train door, and the rescue difficulty is reduced;
(2) compared with the standard section of the high-speed railway tunnel with the speed per hour of 350 kilometers, the maintenance space is arranged below the train and the track beam, so that the maintenance and the repair of the high-speed magnetic suspension railway tunnel are facilitated;
(3) the track beam is adopted to support the maglev train in the tunnel, so that the adaptability of the high-speed maglev line to poor stratum conditions is greatly improved, compared with the high-speed maglev line which is directly arranged at the upper part of the inverted arch filling, the running conditions of the high-speed maglev train are improved, and the operation safety and the service life of the high-speed maglev train are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view (with a support section) of a cross-sectional structure of a high-speed magnetic levitation shield tunnel provided in an embodiment of the present invention;
fig. 2 is a schematic view (without a support section) of a cross-sectional structure of a high-speed magnetic levitation shield tunnel according to an embodiment of the present invention;
fig. 3 is a longitudinal cross-sectional view of the cross-sectional structure of the high-speed magnetic levitation shield tunnel along the line according to the embodiment of the utility model;
fig. 4 is a schematic structural diagram of a tank body and a cover plate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
in the figure: 1. a segment lining ring; 2. filling an inverted arch; 3. a low-voltage cable trough; 4. a high-voltage cable trough; 5. a looped network cable trough; 6. a communication signal cable trough; 7. a central ditch; 8. a cover plate; 81. a tenon; 9. a tank body; 91. an installation section; 92. an accommodating section; 93. mortises; 94. a step surface; 10. opening a hole; 11. a support; 12. a track beam; 13. a rescue channel; 14. building clearance; 15. a tunnel structure centerline; 16. and (5) maintaining the space.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-3, the present embodiment provides a cross-sectional structure of a high-speed magnetic suspension shield tunnel, which includes a segment lining ring 1, a support 11 and a track beam 12; an inverted arch filling 2 is arranged at the bottom in the segment lining ring 1; the top surface of the inverted arch filling 2 is in a high-low step shape and comprises a high step surface 94, a low step surface 94 and a step side surface for connecting the high step surface 94 and the low step surface 94; a plurality of supports 11 are arranged on the low step surface 94 at intervals along the line direction, and track beams 12 are supported on the supports 11; the high step surface 94 is provided with a rescue channel 13, and the high step surface 94 is the bottom surface of the rescue channel 13. The segment lining ring 1 of the embodiment is an annular structure formed by a plurality of prefabricated segment blocks, and the inverted arch filling layer 2 is a plain concrete filling layer; the plurality of supports 11 are arranged on the low step surface 94 at intervals along the line direction to support the track beam 12, and the track beam 12 is adopted to support the high-speed maglev train, so that the adaptability of the high-speed maglev train to poor stratum conditions is greatly improved, compared with the mode of directly arranging the supports on the top surface of the inverted arch filling 2, the running conditions of the high-speed maglev train are improved, and the operation safety and the service life of the high-speed maglev train are improved; the high step surface is the bottom surface of the bottom rescue channel 13, which is beneficial to reducing the height difference of the rescue channel 13 and passengers evacuating through the train door and reducing the rescue difficulty.
Furthermore, the side surface of the rescue channel 13 close to the high-speed maglev train is flush with the side surface of the step, and the side surface of the step and the outer side surface of the train door on one side of the high-speed maglev train close to the rescue channel 13 are in the same plane.
Further, the support 11 is in the form of a double limb, comprising a base plate, a first limb and a second limb; the first limb and the second limb are respectively connected with two sides of the bottom plate, and a maintenance space 16 is arranged between the first limb and the second limb. The support 11 of the embodiment is arranged on the low step surface 94, which is beneficial to getting in and out of a maintenance space below the support and is convenient for maintenance and repair of a high-speed magnetic levitation railway tunnel; the height between the bottom plate and the low step surface 94 of the inverted arch filler 2 meets the requirement of maintenance space, and the interval of the support 11 along the line direction is determined according to the train load, the bearing structure, the curve radius and the like, and is generally about 12 m.
Further, the track beam 12 is of a hollow structure and is shaped like a letter pi, and is used for installing high-speed maglev train operation equipment and bearing train loads. Further, the centre line of the track beam 12 may coincide with or be spaced apart from the tunnel structure centre line 15.
Further, a low-voltage cable trough 3 and a central ditch 7 are arranged on the low step surface 94, and a high-voltage cable trough 4, a looped network cable trough 5 and a communication signal cable trough 6 are arranged on the high step surface 94; the low-voltage cable trough 3 the central ditch 7 the high-voltage cable trough 4 the looped network cable trough 5 with all cover on the communication signal cable trough 6 and be equipped with apron 8.
Furthermore, the central ditch 7 is arranged on the low step surface 94 near the central line 15 of the tunnel structure, and the low-voltage cable trough 3 is arranged on the side of the central ditch 7 departing from the side surface of the step.
Furthermore, the low-voltage cable trough 3, the central ditch 7, the high-voltage cable trough 4, the looped network cable trough 5 and the communication signal cable trough 6 can adopt the same groove structure, and the size of the groove can be determined according to the actual situation; the groove structures comprise groove bodies 9 and cover plates 8, wherein the groove bodies 9 are cast by adopting reinforced concrete, and the cover plates 8 are cast by adopting concrete with the strength grade not lower than C40; the groove body 9 comprises a mounting section 91 for mounting the cover plate 8 and an accommodating section 92 positioned below the mounting section 91, the opening width of the mounting section 91 is larger than that of the accommodating section 92, and the mounting section 91 and the accommodating section 92 form a step structure; the bottom of the inner side surface of one side of the mounting section 91 is inwards recessed to form a mortise 93, and the bottom of one side of the cover plate 8 is outwards protruded and extended to form a tenon 81; the two sides of the cover plate 8 are respectively arranged on the step surfaces 94 of the step structures on the two sides of the groove body 9, and the tenon 81 is inserted into the mortise 93. This embodiment is equipped with tenon 81 in 8 one of them sides of apron, is equipped with at the top at cell body 9 with tenon 81 assorted tongue-and-groove 93, through when installing apron 8 on the step face 94 at cell body 9 top, insert the tongue-and-groove 93 on the cell body 9 with tenon 81 on the apron 8 to fixed apron 8, the train high-speed operation arouses atmospheric pressure difference in avoiding high-speed maglev tunnel to cause apron 8 to beat, reduce the interior operation risk of tunnel, promote apron 8 life.
Furthermore, as shown in fig. 5, a plurality of openings 10 penetrating through the cover plate 8 are formed in the cover plate 8, so that the strength of the cover plate 8 is ensured, and the pressure difference between the upper air and the lower air and the weight of the cover plate 8 during passing of a high-speed train are reduced. Optimally, the ratio of the sum of the areas of all the openings 10 on the plane of the cover plate 8 to the area of the cover plate 8 is not less than 0.4%, so that the cover plate 8 can be kept in a stable state and is not easy to jump up and down, and the use requirement in a high-speed magnetic suspension railway tunnel is met. Specifically, the opening 10 may be in a strip shape and extend in the width direction of the lid plate 8; the plurality of openings 10 are arranged at intervals along the length direction of the cover plate 8, the width of the openings 10 is not more than 3cm, the clear distance between the openings 10 is not less than 3cm, and the water splashing phenomenon in the groove is reduced.
As shown in FIG. 4, the width of the opening of the receiving section 92 is L, and the width of the top of the cover plate 8 is a1And L is less than a1(ii) a The opening width of the mounting section 91 is a2The width between the side of the bottom of the cover plate 8 and the tenon 81 at the opposite side is b1And a is a2Greater than b；On the opposite side of the mortise 93, the distance between the inner side of the accommodating section 92 and the inner side of the mounting section 91 is c1(ii) a And b is1-a1< c1 <b1-L. The size of apron 8 and groove body 9 satisfies above-mentioned relation in this embodiment to guarantee that apron 8 can guarantee to put into the installation section on groove body 9 upper portion, and the apron 8 both ends can not fall into in the section of holding of groove body 9 lower part in the removal inserts groove body 9 upper portion in-process. To optimizeThe width of the tenon 81 is not more than 5cm, i.e. b1-a1≦ 5cm, otherwise the gap between the side of the cover plate 8 opposite the tenon 81 and the inner side of the mounting section 91 of the channel 9 is too large.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a high-speed magnetic levitation shield tunnel cross section structure which characterized in that: the pipe piece lining ring comprises a pipe piece lining ring, a support and a track beam; the bottom in the segment lining ring is filled with an inverted arch; the top surface of the inverted arch filling is in a high-low step shape and comprises a high step surface, a low step surface and a step side surface for connecting the high step surface and the low step surface; a plurality of supports are arranged on the low step surface at intervals along the line direction, and a track beam is supported on each support; and a rescue channel is arranged on the high step surface, and the high step surface is the bottom surface of the rescue channel.
2. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 1, wherein: the side surface of the rescue channel close to the high-speed maglev train is flush with the side surface of the step, and the side surface of the step and the outer side surface of the train door on one side of the high-speed maglev train close to the rescue channel are in the same plane.
3. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 1, wherein: the support is in a double-limb form and comprises a bottom plate, a first limb and a second limb; the first limb and the second limb are respectively connected with two sides of the bottom plate, and a maintenance space is arranged between the first limb and the second limb.
4. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 1, wherein: the high-step surface is provided with a high-voltage cable trough, a ring network cable trough and a communication signal cable trough; the low-voltage cable duct, the central ditch, the high-voltage cable duct, the looped network cable duct and all cover on the communication signal cable duct and be equipped with the apron.
5. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 4, wherein: the central ditch set up in be close to tunnel structure central line department on the low step face, the low pressure cable duct is located the central ditch deviates from one side of step side.
6. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 1, wherein: the track beam is of a hollow structure and is shaped like a Pi.
7. The cross-sectional structure of the high-speed magnetic levitation shield tunnel according to claim 1, wherein: the central line of the track beam is superposed with the central line of the tunnel structure or keeps a certain distance with the central line of the tunnel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380855.XU CN216381384U (en) | 2021-09-29 | 2021-09-29 | High-speed magnetic levitation shield tunnel cross section structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122380855.XU CN216381384U (en) | 2021-09-29 | 2021-09-29 | High-speed magnetic levitation shield tunnel cross section structure |
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| Publication Number | Publication Date |
|---|---|
| CN216381384U true CN216381384U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122380855.XU Active CN216381384U (en) | 2021-09-29 | 2021-09-29 | High-speed magnetic levitation shield tunnel cross section structure |
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- 2021-09-29 CN CN202122380855.XU patent/CN216381384U/en active Active
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