CN112376429A - Construction method and device for ballastless track of continuous beam-arch combined bridge - Google Patents
Construction method and device for ballastless track of continuous beam-arch combined bridge Download PDFInfo
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- CN112376429A CN112376429A CN202011136362.5A CN202011136362A CN112376429A CN 112376429 A CN112376429 A CN 112376429A CN 202011136362 A CN202011136362 A CN 202011136362A CN 112376429 A CN112376429 A CN 112376429A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
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Abstract
The invention discloses a ballastless track construction method and a ballastless track construction device for a continuous beam-arch combined bridge, wherein the bridge is a continuous beam-arch combined bridge, and the method comprises the steps of acquiring linear change data of the bridge; obtaining a ballastless track linear geometric model according to the bridge linear change data; comparing the ballastless track linear geometric model with the ballastless track design model to obtain a preset adjustment value of the ballastless track; and paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track. The method avoids overlarge linear deformation deviation of the ballastless track in the construction process, improves the geometric shape of the ballastless track after forming, ensures the linear quality of the ballastless track, and further ensures that the linear shape value of the ballastless track meets the design and verification requirements.
Description
Technical Field
The invention relates to the technical field of track construction, in particular to a method and a device for constructing a ballastless track of a continuous beam-arch combined bridge.
Background
The ballastless track is a common high-speed railway track structure type at present, and has the advantages of stable structure, good track geometric form, small maintenance amount and the like, but due to the limitation of the adjustment range of a fastener, the linear adjustment range of the steel rail is extremely small after the ballastless track is constructed, and the problems of plate uncovering, rework and the like can be caused once the ballastless track exceeds the standard, so that the linear requirement on the track is extremely high during the construction, especially when the oversized span continuous beam arch combined bridge construction is involved, the working condition is complex, the linear deformation of the bridge is complex, and if the ballastless track is easily caused to have large linear deviation during the trade construction, the ballastless track is caused to have linear deformation, the linear quality after the ballastless track is formed is influenced, and the ballastless track is not qualified.
Disclosure of Invention
The invention mainly aims to provide a construction method and a device for a ballastless track of a continuous beam-arch combined bridge, and aims to solve the problem that the linear quality of the ballastless track does not meet the requirement in the construction of the continuous beam-arch combined bridge in the prior art.
In order to achieve the purpose, the invention provides a construction method of a ballastless track of a continuous beam-arch combined bridge, wherein the bridge is a continuous beam-arch combined bridge, and the method is characterized by comprising the following steps:
acquiring bridge linear change data;
obtaining a ballastless track linear geometric model according to the bridge linear change data;
comparing the ballastless track linear geometric model with the ballastless track design model to obtain a preset adjustment value of the ballastless track;
and paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track.
Preferably, before the step of paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track, the method further includes:
laying steel rails on the protective walls on two sides of the bridge, and mounting the gantry crane on the steel rails;
and installing a rail clamping device to fix the steel rail on the protective wall.
Preferably, before the step of laying the steel rails on the guard walls on both sides of the bridge, the method further comprises the following steps:
shortening the beam of the gantry crane to modify the gantry crane;
and connecting holes are formed in flange plates of the rail clamping devices and are used for connecting ballastless tracks.
Preferably, the step of paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track includes:
constructing a base plate of a full bridge according to a preset adjusting value;
carrying out temporary load counterweight construction;
carrying out full-bridge track bed plate construction according to a preset adjusting value so as to adjust the ballastless track;
carrying out track row installation construction on the track bed plate;
and connecting the track panel of the ballastless track with the connecting hole of the track clamping device through the transverse support rod.
Preferably, the step of constructing the full-bridge track bed board according to the preset adjustment value to adjust the ballastless track includes:
according to the preset adjusting value, simultaneously carrying out the construction of the bed boards on the side spans at the two ends of the bridge;
and symmetrically constructing the ballast bed boards in the midspan of the bridge from two ends of the midspan of the bridge to the midspan of the bridge according to the preset adjustment value.
Preferably, after the step of paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track, the method includes:
constructing a full-bridge expansion regulator;
adjusting the locking force of the bridge suspender;
and adjusting the ballastless track again through the telescopic regulator.
Preferably, after the step of adjusting the locking force of the bridge boom, the method further comprises:
a small jaw self-adaptive measurement frame is arranged on a rail bearing platform of the ballastless track to acquire data of the rail bearing platform;
and verifying the acquired data through the electronic level to obtain verification data.
Preferably, the step of acquiring linear bridge variation data includes:
acquiring bridge parameters;
and simulating the linear change of the bridge under different working conditions according to the acquired bridge parameters to obtain the linear change data of the bridge.
The invention also provides a construction device of the ballastless track of the continuous beam-arch combined bridge, which is used for implementing the construction method of the ballastless track of the continuous beam-arch combined bridge, and comprises the following steps:
the ballastless track comprises a track bed board and a track panel arranged on the track bed board, and the track panel is transversely arranged on the bridge;
the number of the steel rails is two, and the two steel rails are paved on the protection walls on the two sides of the bridge respectively;
the gantry hanger is arranged on the two steel rails;
and the rail clamping device is arranged on the protective wall and is used for clamping the steel rail, and the rail clamping device is connected with the rail panel.
Preferably, a flange plate of the rail clamping device is provided with a connecting hole, and the rail row is connected with the connecting hole through a transverse supporting rod.
According to the method, the linear geometric model of the ballastless track is simulated through the superposition operation of the deformation values of the bridge, the linear model of the ballastless track molding is judged in advance, the preset adjustment value in the actual construction process of the ballastless track is calculated according to the linear model of the ballastless track, then the ballastless track is constructed according to the preset adjustment value, the condition that the linear deformation deviation of the ballastless track is overlarge in the construction process is avoided, the geometric shape of the ballastless track after molding is improved, the linear quality of the ballastless track is guaranteed, and the condition that the linear shape value of the ballastless track meets the requirements of design and verification is further guaranteed.
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 structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow diagram of a continuous beam-arch combined bridge ballastless track construction method according to a first embodiment of the invention;
fig. 2 is a schematic flow diagram of a continuous beam-arch combined bridge ballastless track construction method according to a second embodiment of the invention;
fig. 3 is a schematic flow diagram of a third embodiment of the continuous beam-arch combined bridge ballastless track construction method of the invention;
fig. 4 is a schematic flow diagram of a fourth embodiment of the continuous beam-arch combined bridge ballastless track construction method of the invention;
fig. 5 is a schematic flow diagram of a fifth embodiment of the continuous beam-arch combined bridge ballastless track construction method of the invention;
fig. 6 is a schematic flow diagram of a sixth embodiment of the continuous beam-arch combined bridge ballastless track construction method of the invention;
fig. 7 is a schematic flow diagram of a seventh embodiment of the continuous beam-arch combined bridge ballastless track construction method of the invention;
fig. 8 is a schematic cross-sectional view of a ballastless track construction device of a continuous beam-arch combined bridge according to an embodiment of the invention;
FIG. 9 is an enlarged view of area A in FIG. 8;
fig. 10 is a schematic top view of a ballastless track construction device of a continuous beam-arch combined bridge according to an embodiment of the invention;
fig. 11 is a schematic side view of a ballastless track construction device of a continuous beam-arch combined bridge according to an embodiment of the invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
21 | Cross beam |
| 1 | |
3 | Rail for |
| 11 | |
4 | |
| 12 | |
41 | Connecting |
| 13 | |
101 | |
| 14 | |
102 | |
| 2 | Gantry crane |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a construction method of a ballastless track of a continuous beam-arch combined bridge.
As shown in fig. 1, which is a schematic flow diagram of a first embodiment of the method for constructing a ballastless track of a continuous beam-arch combined bridge according to the present invention, a bridge 100 is a continuous beam-arch combined bridge 100, and the method for constructing a ballastless track of a continuous beam-arch combined bridge includes the steps of:
s100, acquiring linear change data of the bridge 100;
before the construction of the ballastless track 1, the linear deformation of the bridge 100 is simulated according to factors such as the bridge forming line type, the creep after construction, the secondary load deformation, the locking force adjustment of the bridge 100, the temperature change and the like of the continuous beam-arch combined bridge 100, and the linear change data of the bridge 100 is obtained.
S200, obtaining a linear geometric model of the ballastless track 1 according to the linear change data of the bridge 100;
because the linear deformation of the bridge 100 has an influence on the molding linearity of the ballastless track 1, before the construction of the ballastless track 1, the linear deformation of the bridge 100 is simulated, and then the linear deformation of the ballastless track 1 is simulated according to the linear change data of the bridge 100, so as to obtain a linear geometric model of the ballastless track 1.
S300, comparing the ballastless track 1 linear geometric model with the ballastless track 1 design model to obtain a preset adjustment value of the ballastless track 1;
according to the reverse thinking, comparing the geometric model of the ballastless track 1 obtained by simulation with the design model of the ballastless track 1, calculating a track linear adjustment value of the ballastless track 1, setting a preset adjustment value of the ballastless track 1 in the formal construction stage according to the linear adjustment value, and prejudging the linear model of the ballastless track 1 after molding.
S400, paving the ballastless track 1 according to the preset adjusting value to adjust the ballastless track 1 to form the ballastless track 1.
The ballastless track 1 is poured and arranged according to the preset adjusting value, so that overlarge deviation is avoided, and the linear forming quality of the ballastless track 1 is ensured.
According to the invention, a linear geometric model of the ballastless track 1 is simulated through the superposition operation of the deformation value of the bridge 100, a linear model for forming the ballastless track 1 is pre-judged, a preset adjustment value in the actual construction process of the ballastless track 1 is calculated according to the linear model of the ballastless track 1, and then the ballastless track 1 is constructed according to the preset adjustment value, so that the excessive linear deformation deviation of the ballastless track 1 in the construction process is avoided, the formed geometric shape of the ballastless track 1 is improved, the linear quality of the ballastless track 1 is ensured, and further the linear shape value of the ballastless track is ensured to meet the requirements of design and verification.
Further, as shown in fig. 2, a schematic flow chart of a second embodiment of the method for constructing a ballastless track of a continuous beam-arch combined bridge according to the present invention includes, before step S400, the following steps:
s110, paving steel rails 3 on the protective walls 102 on the two sides of the bridge 100, and installing the gantry crane 2 on the steel rails 3;
and S120, installing the rail clamping device 4 to fix the steel rail 3 on the protective wall 102.
Due to the influence of the arch support limit of the continuous beam arch combined bridge 100, the gantry crane 2 which is traditionally installed above the cable duct cannot perform the material transportation function of the construction of the ballastless track 1, and the gantry crane 2 is installed on the protective walls 102 on the two sides of the bridge 100, so that the gantry crane 2 has the transportation function, the walking cyclic utilization of the gantry crane 2 on a long and large line is realized, the construction of the ballastless track 1 is facilitated, and the construction efficiency is improved. And through the rail clamping device 4, the steel rail 3 can be stably fixed on the protective wall 102, so that the reinforcement of the gantry crane 2 on a strip foundation such as the protective wall 102 is realized, the risk of rollover of the gantry crane 2 is avoided, and the safety of the gantry crane 2 is ensured.
Further, as shown in fig. 3, a schematic flow chart of a third embodiment of the method for constructing a ballastless track of a continuous beam-arch combined bridge according to the present invention includes, before step S110:
s111, shortening the beam 21 of the gantry crane 2 to modify the gantry crane 2;
and S112, arranging a connecting hole 41 on the flange plate of the rail clamping device 4 for connecting the ballastless track 1.
The adoption carries out the repacking of portal crane 2 to the mode that the crossbeam 21 shortens of portal crane 2 for the crossbeam 21 of portal crane 2 can span the protective wall 102 setting of bridge 100 both sides, guaranteed that portal crane 2 can effectively be installed on the protective wall 102 of bridge 100 both sides, trompil is used for connecting ballastless track 1 on the flange board of clamping rail device 4, realized the utilization function promotion of clamping rail device 4, both transversely consolidated portal crane 2 through ballastless track 1, transversely consolidated ballastless track 1 through clamping rail device 4 again simultaneously.
In this embodiment, as shown in fig. 4, which is a schematic flow chart of a fourth embodiment of the continuous beam-arch combined bridge ballastless track construction method of the present invention, step S400 includes:
s410, constructing the base plate 11 of the full bridge according to a preset adjusting value;
s420, carrying out temporary load counterweight construction;
s430, constructing a full-bridge track bed board 12 according to a preset adjusting value so as to adjust the ballastless track 1;
s440, installing and constructing the track panel 13 on the track bed slab 12;
and S450, connecting the track panel 13 of the ballastless track 1 with the connecting hole 41 of the track clamping device 4 through the transverse brace 14.
After the construction of the full-bridge bed plate 11 is completed, the temporary load balance weight of the full bridge is carried out, so that the state of the bridge 100 is close to the state of the beam body after the bridge 100 is formed when the ballast bed plate 12 is constructed, the construction of the ballast bed plate 12 is carried out according to the preset adjustment value, the construction precision of the ballast bed plate 12 is guaranteed, the installation and construction of the track panel 13 are carried out, the whole construction precision of the ballastless track 1 is further improved, and the follow-up maintenance and adjustment range of fasteners of the track panel 13 are reduced. The rail panel 13 is connected with the connecting hole 41 of the rail clamping device 4 through the transverse supporting rod 14, so that the rail clamping device 4 has a transverse reinforcing effect on the rail panel 13.
In another embodiment of the invention, temporary load balancing is equivalently carried out by dispersing and arranging construction loads of sleepers, track panels 13, steel bars, cable trough cover plates and the like in advance.
In another embodiment of the invention, the pouring time of the track bed slab 12 is the same as the pouring time of the beam body, so that the influence of the temperature on the linearity of the beam body and the linear shape of the track bed slab 12 is reduced, and the linear forming quality of the ballastless track 1 is further improved.
Further, in a preferred implementation manner of the fourth embodiment of the continuous beam-arch combined bridge ballastless track construction method of the present invention, step S430 includes:
s431, simultaneously constructing the bed boards 12 at the two end spans of the bridge 100 according to the preset adjusting value;
and S432, symmetrically constructing the ballast bed plate 12 from two ends of the midspan of the bridge to the midspan of the bridge 100 according to the preset adjustment value.
In an embodiment of the invention, the track bed plate 12 is symmetrically and oppositely poured, so that the stress of the bridge 100 is uniform, the deformation caused by nonuniform stress of the beam body is reduced, the integral balance of the bridge 100 in the construction stage of the track bed plate 12 is ensured, the influence of load deformation on the linear forming of the ballastless track 1 in the construction stage is further reduced, and the linear quality of the ballastless track 1 is improved.
In this embodiment, as shown in fig. 5, a schematic flow chart of a fifth embodiment of the continuous beam-arch combined bridge ballastless track construction method according to the present invention is shown, and after step S400, the method includes:
s500, constructing a full-bridge expansion regulator;
s600, adjusting the locking force of the suspension rod 101 of the bridge 100;
and S700, readjusting the ballastless track 1 through the telescopic regulator.
After the installation and construction of the telescopic regulator of the ballastless track 1 are carried out at the beam end, the locking force of the suspender 101 of the bridge 100 is adjusted, the bridge 100 is put down, the bridge 100 is in a normal stress state, and the linear shape of the bridge 100 is influenced due to the change of the stress state of the bridge 100, so that the linear shape of the ballastless track 1 is changed, the ballastless track 1 is adjusted again through the telescopic regulator according to a preset adjustment value, the linear shape of the ballastless track 1 meets the requirement, and the construction of the ballastless track 1 is completed.
Further, in this embodiment, as shown in fig. 6, a schematic flow chart of a sixth embodiment of the continuous beam-arch combined bridge ballastless track construction method according to the present invention is shown, and after step S600, the method further includes:
s601, arranging a small jaw self-adaptive measuring frame on a rail bearing platform of the ballastless track 1 to acquire data of the rail bearing platform;
and S602, verifying the acquired data through the electronic level to obtain verification data.
When the locking force of a suspender 101 of a bridge 100 is adjusted and the bridge 100 is put down, a small jaw self-adaptive measurement price marker is arranged on a track bearing platform of a ballastless track 1 to collect linear deformation data of the track bearing platform during the locking force adjustment of the suspender 101 of the bridge 100, after the bridge 100 is put down, an electronic level is adopted to verify the linear shape and the height deformation of the ballastless track 1, verification data is obtained by comparing with a preset adjustment value, and the ballastless track 1 is adjusted again according to the verification data so that the deformation value of the ballastless track 1 meets the design requirement.
In this embodiment, as shown in fig. 7, a flow diagram of a seventh embodiment of the continuous beam-arch combined bridge ballastless track construction method according to the present invention is shown, and step S100 includes:
s101, acquiring parameters of a bridge 100;
s102, simulating the linear change of the bridge 100 under different working conditions according to the acquired parameters of the bridge 100 to obtain the linear change data of the bridge 100.
The method comprises the steps of obtaining parameters of a continuous beam-arch combined bridge 100 such as bridge line shape, post-construction creep, secondary load deformation, temporary load deformation, locking force adjustment and the like, simulating upper arch deformation and lower arch deformation values of a bridge 100 under different working conditions according to the parameters, calculating linear change of the bridge 100 after the bridge is stabilized according to a comprehensive deformation value to obtain linear change data of the bridge 100, and obtaining the linear shape of a ballastless track 1 after the bridge 100 is stabilized according to the linear change data to ensure that the linear shape of the ballastless track 1 meets design requirements.
The invention also provides a continuous beam arch combined bridge ballastless track construction device, which comprises the following components: the ballastless track comprises a ballastless track 1, a steel rail 3, a gantry crane 2 and a rail clamping device 4, wherein the ballastless track 1 comprises a track bed plate 12 and a track panel 13 arranged on the track bed plate 12, and the track panel 13 is transversely arranged on a bridge 100; the number of the steel rails 3 is two, and the two steel rails 3 are paved on the protective walls 102 on the two sides of the bridge 100 respectively; the gantry crane 2 is erected on the two steel rails 3; the rail clamping device 4 is installed on the protective wall 102, the rail clamping device 4 is used for clamping the steel rail 3, and the rail clamping device is connected with the rail panel 13.
As shown in fig. 8 to 11, in this embodiment, the rail clamping device 4 is connected to the rail panel 13, so that the utilization function of the rail clamping device 4 is improved, the rail panel 13 is transversely reinforced, and after the construction of the rail panel 13 is completed, the rail panel 13 is transversely reinforced by the rail clamping device 4, so that the rail panel 13 is prevented from generating transverse displacement in the subsequent construction process, the linear deformation of the ballastless track 1 is reduced, the linear quality of the construction of the ballastless track 1 is improved, and the rail panel 13 in turn also plays a role in stabilizing the rail clamping device 4, so that the risk of side turning of the gantry crane 2 is avoided, the use safety of the gantry crane 2 is improved, the stable matching among the rail clamping device 4, the gantry crane 2 and the rail panel 13 is realized, the construction investment is reduced, and the construction cost is saved.
Further, as shown in fig. 9, a flange plate of the rail clamping device 4 is provided with a connecting hole 41, and the rail row 13 is connected with the connecting hole 41 of the rail clamping device 4 through the cross brace 14. The transverse supporting rod 14 is firmly connected with the rail clamping device 4 through the fastening bolt, so that the connection stability of the rail panel 13 and the rail clamping device 4 is ensured.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A construction method of a ballastless track of a continuous beam-arch combined bridge is characterized by comprising the following steps:
acquiring bridge linear change data;
obtaining a ballastless track linear geometric model according to the bridge linear change data;
comparing the ballastless track linear geometric model with the ballastless track design model to obtain a preset adjustment value of the ballastless track;
and paving the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track.
2. The method for constructing the ballastless track of the continuous beam arch combined bridge according to claim 1, wherein before the step of laying the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track, the method further comprises:
laying steel rails on the protective walls on two sides of the bridge, and mounting the gantry crane on the steel rails;
and installing a rail clamping device to fix the steel rail on the protective wall.
3. The method for constructing the ballastless track of the continuous beam-arch combined bridge according to claim 2, wherein before the step of laying steel rails on the guard walls on both sides of the bridge, the method further comprises the following steps:
shortening the beam of the gantry crane to modify the gantry crane;
and a flange plate of the rail clamping device is provided with a connecting hole for connecting the ballastless track.
4. The construction method of the ballastless track of the continuous beam arch combination bridge according to claim 3, wherein the step of laying the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track comprises:
constructing a base plate of a full bridge according to a preset adjusting value;
carrying out temporary load counterweight construction;
carrying out full-bridge track bed plate construction according to a preset adjusting value so as to adjust the ballastless track;
carrying out track row installation construction on the track bed plate;
and connecting the track panel of the ballastless track with the connecting hole of the track clamping device through the transverse support rod.
5. The method for constructing the ballastless track of the continuous beam arch combined bridge according to claim 4, wherein the step of constructing the full bridge bed slab according to the preset adjustment value to adjust the ballastless track comprises the following steps:
according to the preset adjusting value, simultaneously carrying out the construction of the bed boards on the side spans at the two ends of the bridge;
and symmetrically constructing the ballast bed boards in the midspan of the bridge from two ends of the midspan of the bridge to the midspan of the bridge according to the preset adjustment value.
6. The method for constructing the ballastless track of the continuous beam arch combination bridge according to any one of claims 1 to 5, wherein after the step of laying the ballastless track according to the preset adjustment value to adjust the ballastless track to form the ballastless track, the method comprises:
constructing a full-bridge expansion regulator;
adjusting the locking force of the bridge suspender;
and adjusting the ballastless track again through the telescopic regulator.
7. The method for constructing the ballastless track of the continuous beam-arch combined bridge according to claim 6, wherein after the step of adjusting the locking force of the bridge hanger rod, the method further comprises:
a small jaw self-adaptive measurement frame is arranged on a rail bearing platform of the ballastless track to acquire data of the rail bearing platform;
and verifying the acquired data through the electronic level to obtain verification data.
8. The method for constructing the ballastless track of the continuous beam-arch combined bridge according to any one of claims 1 to 5, wherein the step of acquiring the linear variation data of the bridge comprises:
acquiring bridge parameters;
and simulating the linear change of the bridge under different working conditions according to the acquired bridge parameters to obtain the linear change data of the bridge.
9. A continuous beam-arch combined bridge ballastless track construction device is used for implementing the continuous beam-arch combined bridge ballastless track construction method of any one of claims 1-8, and is characterized by comprising the following steps:
the ballastless track comprises a track bed board and a track panel arranged on the track bed board, and the track panel is transversely arranged on the bridge;
the number of the steel rails is two, and the two steel rails are paved on the protection walls on the two sides of the bridge respectively;
the gantry hanger is arranged on the two steel rails;
and the rail clamping device is arranged on the protective wall and is used for clamping the steel rail, and the rail clamping device is connected with the rail panel.
10. The ballastless track construction device of a continuous beam-arch combined bridge, as set forth in claim 8, wherein a flange plate of the rail clamping device is provided with a connecting hole, and the track panel is connected with the connecting hole through a cross brace.
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| CN202011136362.5A CN112376429B (en) | 2020-10-21 | 2020-10-21 | Construction method and device for ballastless track of continuous beam-arch combined bridge |
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| CN202011136362.5A CN112376429B (en) | 2020-10-21 | 2020-10-21 | Construction method and device for ballastless track of continuous beam-arch combined bridge |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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