A method for intelligent continuous lateral movement construction of railway box girders adjacent to existing high-speed railways

By using an intelligent continuous jacking system and a longitudinal calibration system, the problem of box girder deflection during the construction of box girders for adjacent high-speed railways was solved, achieving stable and continuous lateral movement and safe construction.

CN118639564BActive Publication Date: 2026-01-06CHINA RAILWAY SEVENTH GRP CO LTD +1
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Patent Information

Application Number
CN202410862124.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2026-01-06
Estimated Expiration
2044-06-28

AI Technical Summary

Technical Problem

In the construction of railway box girders adjacent to existing high-speed railways, the existing technology has large box girder volume and weight, and the synchronization effect of the translation mechanism on both sides of the bottom is poor, which causes the box girder to deflect and poses a safety hazard.

Method used

An intelligent continuous jacking system is adopted, including a control system, a hydraulic pump station, and continuous jacks. By synchronously collecting jack displacement data and adjusting the speed in real time, the continuous lateral movement of the railway box girder is achieved. Combined with a longitudinal calibration system and limit devices, the stability and safety of the box girder are ensured.

Benefits of technology

This method enables stable and continuous lateral movement of railway box girders, avoids box girder deflection, improves construction safety and efficiency, and simplifies construction procedures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of bridge construction, in particular to a railway box girder intelligent continuous transverse moving construction method adjacent to an existing high-speed railway. The railway box girder adopts an intelligent continuous pushing system to perform transverse moving operation, the intelligent continuous pushing system comprises a control system, a hydraulic pump station and continuous jacks; the continuous jacks are slidably arranged on lateral slides at the two sides of the bottom of the railway box girder and are used for continuously pushing lateral moving shoes to move laterally; the hydraulic pump station is used for continuously adjusting the speed of the continuous jacks; the intelligent continuous transverse moving construction method comprises the following steps: S1, transverse moving operation: simultaneously starting the continuous jacks on the lateral slides at the two sides of the bottom of the railway box girder to perform pushing operation; the control system synchronously collects and compares the displacement data of the continuous jacks and controls the hydraulic pump station to compensate the speed of the continuous jacks in real time; and S4, beam falling operation. Through the above arrangement, the synchronous pushing between the continuous jacks at the two sides of the bottom of the railway box girder can be realized.
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Description

Technical Field

[0001] This application relates to the field of bridge construction technology, and in particular to a method for intelligent continuous transverse movement construction of railway box girders adjacent to existing high-speed railways. Background Technology

[0002] With urban development and construction and the increasing traffic volume, it is inevitable that transportation lines will intersect or run parallel. When box girder construction does not have the conditions for in-situ assembly or hoisting, in order to avoid affecting the operation of the completed line, the existing construction often adopts the method of assembling in a different location and then moving it into place. However, due to the large volume and weight of the box girder, if the synchronization effect of the translation mechanism on both sides of the bottom is poor, it will cause the box girder to deflect, which poses certain safety hazards.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this application is to provide a method for intelligent continuous transverse movement construction of railway box girders adjacent to existing high-speed railways, so as to solve or alleviate the problems existing in the above-mentioned prior art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A method for intelligent continuous lateral movement construction of railway box girders adjacent to existing high-speed railways.

[0007] The railway box girder is moved laterally using an intelligent continuous jacking system, which includes a control system, a hydraulic pump station, and continuous jacks.

[0008] The continuous jacks are slidably mounted on the transverse slides on both sides of the bottom of the railway box girder, and are used to continuously push the transverse slides to move laterally.

[0009] The hydraulic pump station is used for stepless speed regulation of the continuous jack.

[0010] The intelligent continuous transverse movement construction method includes:

[0011] Step S1, Lateral movement operation: Simultaneously start the continuous jacks on the transverse slides on both sides of the bottom of the railway box girder to carry out the jacking operation; the control system synchronously collects and compares the displacement data of the continuous jacks, and controls the hydraulic pump station to perform real-time speed compensation for the continuous jacks.

[0012] Step S4, beam lowering operation.

[0013] The intelligent continuous lateral movement construction method for railway box girders adjacent to existing high-speed railways, as described above, preferably includes a displacement sensor in the intelligent continuous jacking system, and the control system collects continuous jack displacement data through the displacement sensor.

[0014] The intelligent continuous transverse movement construction method for railway box girders adjacent to existing high-speed railways, as described above, preferably includes a scale on the transverse slide and markings on the bottom of the railway box girder.

[0015] Step S1 further includes: performing real-time manual observation of the displacement data of the railway box girder by changing the relative position of the scale and the mark.

[0016] The above-described intelligent continuous lateral movement construction method for railway box girders adjacent to existing high-speed railways, preferably,

[0017] Step S1 further includes: when the remaining 1m of the lateral movement distance is about to be completed, the pushing speed of the continuous jacks begins to gradually decrease, and a first stop is set at one end of the lateral slide to prevent over-pulling during the lateral movement operation.

[0018] As described above, a method for intelligent continuous transverse movement of railway box girders adjacent to existing high-speed railways is preferably provided with a longitudinal calibration system between the piers corresponding to the railway box girders. The longitudinal calibration system includes a longitudinal slide, a longitudinal slipper, a second lifting device, and a second temporary support.

[0019] The second temporary support is symmetrically distributed between the piers along the transverse direction of the bridge and is used to support the longitudinal slide rail;

[0020] The longitudinal slide shoe is slidably mounted on the corresponding longitudinal slide rail along the bridge direction, and each longitudinal slide shoe is fixedly equipped with multiple second lifting devices along the bridge direction.

[0021] The longitudinal slide rail is located below the transverse slide rail;

[0022] The intelligent continuous transverse movement construction method also includes:

[0023] Step S2, longitudinal calibration operation: After the railway box girder is moved into position laterally, the multiple second lifting devices are activated to take over lifting the railway box girder until it is disengaged from the transverse slide. Then, the longitudinal sliding shoe is activated to move the railway box girder along the bridge direction until it is moved into position longitudinally.

[0024] In the above-described intelligent continuous transverse movement construction method for railway box girders adjacent to existing high-speed railways, preferably, the top of the longitudinal slide rail is fixedly connected to the bottom of the transverse slide rail.

[0025] In the above-described intelligent continuous transverse movement construction method for railway box girders adjacent to existing high-speed railways, preferably, each of the transverse slippers is fixedly equipped with multiple first lifting devices along the transverse bridge direction.

[0026] The intelligent continuous lateral movement construction method for railway box girders adjacent to existing high-speed railways, as described above, preferably further includes:

[0027] Step S3, Limiting Operation: Install anti-fall beam blocks and support bolts.

[0028] As described above, in a method for intelligent continuous transverse movement of a railway box girder adjacent to an existing high-speed railway, step S4 preferably includes: the plurality of second lifting devices descending until the plurality of first lifting devices take over supporting the railway box girder; the plurality of second lifting devices continuing to descend for a first stroke and then stopping; the plurality of first lifting devices descending until the plurality of second lifting devices take over supporting the railway box girder; the plurality of first lifting devices continuing to descend for a first stroke; and so on, until the railway box girder falls onto the bridge pier.

[0029] In the above-described intelligent continuous transverse movement construction method for railway box girders adjacent to existing high-speed railways, preferably, in step S4, the plurality of second lifting devices perform alternating unilateral descent; the plurality of first lifting devices perform alternating unilateral descent.

[0030] Compared with the closest prior art, the technical solution of this application has the following beneficial effects:

[0031] By setting up a control system to collect and compare displacement data between continuous jacks in real time, and coordinating the control of the hydraulic pump station to compensate for the speed of the continuous jacks, synchronous jacking between the continuous jacks on both sides of the bottom of the railway box girder can be achieved. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein:

[0033] Figure 1 This is a schematic diagram of the lateral movement operation plan layout according to some embodiments of this application;

[0034] Figure 2 A cross-sectional view of the transverse bridge for a lateral movement operation provided according to some embodiments of this application;

[0035] Figure 3 This is a schematic diagram of the planar arrangement of the transverse displacement system and the longitudinal calibration system according to some embodiments of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Railway box girder; 2. Longitudinal alignment system; 3. Lateral movement system; 4. Lateral slide; 5. Lateral slide shoe; 6. First lifting device; 7. Longitudinal slide; 8. Longitudinal slide shoe; 9. Second lifting device; 10. Pad stone; 11. Pier; 12. Anti-falling beam block; 13. Continuous jack; 14. Reaction seat; 15. Steel strand. Detailed Implementation

[0038] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0039] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0041] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0042] For clarity, the following terms are defined below:

[0043] Along the bridge direction: along the direction of the bridge's extension, i.e., the bridge's orientation, which is also the longitudinal direction in this text;

[0044] Transverse direction: along the horizontal direction perpendicular to the extension of the bridge, which is the transverse direction in this article.

[0045] The following will be combined with the appendix Figure 1-3 This application provides a more detailed description of a method for intelligent continuous transverse movement construction of a railway box girder 1 adjacent to an existing high-speed railway.

[0046] A method for intelligent continuous lateral movement construction of railway box girder 1 adjacent to an existing high-speed railway.

[0047] The railway box girder 1 is moved laterally using an intelligent continuous jacking system, which includes a control system, a hydraulic pump station, and continuous jacks 13.

[0048] The continuous jacks 13 are slidably set on the transverse slides 4 on both sides of the bottom of the railway box girder 1, and are used to continuously push the transverse slide shoes 5 to move laterally.

[0049] The hydraulic pump station is used for stepless speed regulation of the continuous jack 13;

[0050] Intelligent continuous transverse movement construction methods include:

[0051] Step S1, Lateral movement operation: Simultaneously start the continuous jacks 13 on the transverse slides 4 on both sides of the bottom of the railway box girder 1 to carry out the jacking operation; the control system synchronously collects and compares the displacement data of the continuous jacks 13, and controls the hydraulic pump station to perform real-time speed compensation for the continuous jacks 13.

[0052] Step S4, beam lowering operation.

[0053] In the specific implementation of this application, the railway box girder 1 is moved laterally using a transverse movement system 3. The transverse movement system 3 includes a first temporary support, a transverse slide rail 4, and a transverse slide shoe 5. The first temporary support is a steel pipe column structure. Two first temporary supports are symmetrically distributed on both sides of the bottom of the railway box girder 1 along the longitudinal direction of the bridge. The transverse slide rail 4 is welded and fixed to the distribution beam at the top of the steel pipe column structure. The transverse slide rail 4 is manufactured in multiple segments, each segment being 17m long and 800mm high. Adjacent segments are connected by pins and screws to form a flat surface. The two transverse slide rails 4 extend into the space between the piers 11 along the transverse direction of the bridge. The transverse slide shoe 5 is welded from I-beams, intermediate connecting steel plates, end plates, side plates, and top and bottom plates. The lower steel plate of the transverse slide shoe 5 forms a groove, in which an MGE sliding plate is embedded, and is connected to the bottom plate of the transverse slide shoe 5 by bolts. In addition to its reinforcing function, the side plate of the transverse slipper 5 also serves as a guide and correction function. The two transverse slippers 5 are respectively slidably engaged with the top of the corresponding transverse slide 4 through the grooves at their respective lower parts.

[0054] In the specific implementation of this application, both transverse sliding shoes 5 are provided with lateral movement force by corresponding two continuous jacks 13. Reaction seats 14 are installed at the ends of the two transverse sliding tracks 4 near the pier 11, and the two continuous jacks 13 are correspondingly fixed at the ends of the transverse sliding shoes 5 away from the reaction seats 14. φ140mm round holes are required at both ends of the transverse sliding shoes 5 to allow the steel strands 15 to pass through. A φ150 galvanized steel pipe is embedded in the connecting steel plate in the middle to facilitate the threading of the steel strands 15. Before lateral movement, grease is applied to the top surface of the transverse slide 4 for lubrication. The steel strand 15 is threaded through the φ150 galvanized steel pipe embedded in the transverse slide 5. Tool anchors and clamps are installed on the reaction seat 14 to fix the steel strand 15. First, a YDC135Q jack is used to pre-tighten the steel strand 15 to a tension of 10kN. After the steel strands 15 threaded through the two transverse slides 5 are pre-tightened, the corresponding continuous jacks 13 are installed.

[0055] During the lateral movement operation, the displacement data of the two continuous jacks 13 are synchronized and compared by the PLC control system. The hydraulic pump station is controlled to perform real-time speed compensation for the continuous jacks 13 through the oil pump frequency converter, so as to realize the synchronous operation of the continuous jacks 13 on both sides of the bottom of the railway box girder 1. Furthermore, after each continuous jack 13 completes a movement (20cm), the movement stroke of the lateral slipper 5 needs to be measured. If a deviation is found, it needs to be fine-tuned before the next lateral movement operation is performed until the lateral movement is in place.

[0056] The intelligent continuous jacking system includes displacement sensors, and the control system collects displacement data of the continuous jacks 13 through the displacement sensors.

[0057] In the specific implementation of this application, the displacement sensor is a rope displacement sensor with an accuracy of 0.02 mm.

[0058] A scale is provided on the transverse slide 4, and a mark is provided on the bottom of the railway box girder 1;

[0059] Step S1 also includes: conducting real-time manual observation of the displacement data of the railway box girder 1 by changing the relative position of the scale and the mark.

[0060] Step S1 also includes: when the remaining 1m of the lateral movement distance is about to be completed, the pushing speed of the continuous jack 13 begins to gradually decrease, and a first stop is set at one end of the lateral slide 4 to prevent over-pulling during the lateral movement operation.

[0061] In the specific implementation of this application, the first stop is a wedge-shaped stop, and the overall lateral movement speed is controlled between 15 and 20 cm / min, that is, between 9 and 12 m / h.

[0062] A longitudinal calibration system 2 is provided between the piers 11 corresponding to the railway box girder 1. The longitudinal calibration system 2 includes a longitudinal slide 7, a longitudinal slipper 8, a second lifting device 9, and a second temporary support.

[0063] The second temporary support is symmetrically distributed between the piers 11 along the transverse direction of the bridge and is used to support the longitudinal slide 7.

[0064] The longitudinal slide shoe 8 is slidably mounted on the corresponding longitudinal slide rail 7 along the bridge direction, and each longitudinal slide shoe 8 is fixedly equipped with multiple second lifting devices 9 along the bridge direction.

[0065] The longitudinal slide 7 is located below the transverse slide 4;

[0066] The intelligent continuous transverse movement construction method also includes:

[0067] Step S2, longitudinal calibration operation: After the railway box girder 1 is moved laterally into place, multiple second lifting devices 9 are activated to take over lifting the railway box girder 1 until the railway box girder 1 is disengaged from the transverse slide 4. Then, the longitudinal sliding shoe 8 is activated to drive the railway box girder 1 to move in the direction of the bridge until the railway box girder 1 is moved longitudinally into place.

[0068] In the specific implementation of this application, two second temporary supports are symmetrically distributed between piers 11 along the longitudinal direction of the bridge. Both second temporary supports are steel pipe column structures, and the longitudinal slide rails 7 are welded and fixed to the distribution beams at the top of the steel pipe column structures. The longitudinal slide rails 7 are manufactured in multiple segments, each segment being 17m long and 800mm high. Adjacent segments are connected by pins and screws to form a flat surface. The longitudinal slide shoe 8 is welded from I-beams, intermediate connecting steel plates, end plates, side plates, and top and bottom plates. The lower steel plate of the longitudinal slide shoe 8 forms a groove, in which an MGE sliding plate is embedded, and it is connected to the bottom plate of the transverse slide shoe 5 by bolts. In addition to reinforcement, the side plates of the longitudinal slide shoe 8 also serve a guiding and correction function. The two longitudinal slide shoes 8 are slidably engaged with the top of the corresponding longitudinal slide rail 7 through their respective lower grooves. Each longitudinal slide shoe 8 is provided with two second lifting devices 9 at intervals. The longitudinal sliding shoe 8 adopts a different power mechanism than the transverse sliding shoe 5. Specifically, each longitudinal sliding shoe 8 is equipped with a jack at both ends. Through the pushing and pulling action of the jacks at both ends, the top railway box girder 1 is moved in the longitudinal direction of the bridge, thereby realizing the longitudinal calibration operation. Furthermore, after the railway box girder 1 is moved into position laterally, multiple second lifting devices 9 are activated to take over the support of the railway box girder 1. Through the transverse limiting of the longitudinal slide rail 7, secondary deviation caused by the autonomous sliding of the railway box girder 1 after it is moved into position laterally can also be prevented.

[0069] Compared to the existing technology that uses blocks at both ends of the transverse slipper 5 for limiting, this technical solution can not only calibrate the railway box girder 1 in the longitudinal direction through the cooperation of the longitudinal slide 7, the longitudinal slipper 8 and the second lifting device 9, but also use the second lifting device 9 to take over the support of the railway box girder 1, thereby achieving transverse limiting of the railway box girder 1 and avoiding the repeated setting of blocks.

[0070] The top of the longitudinal slide 7 is fixedly connected to the bottom of the transverse slide 4.

[0071] In the specific implementation of this application, the top of the longitudinal slide 7 is welded and fixed to the bottom of the transverse slide 4, and the longitudinal calibration system 2 and the transverse movement system 3 form a grid structure. On the one hand, this improves the stability of the box girder transverse movement construction, and on the other hand, it avoids interference with the transverse movement operation while satisfying the longitudinal calibration operation.

[0072] Each transverse slipper 5 is fixedly equipped with multiple first lifting devices 6 along the transverse bridge direction.

[0073] In the specific implementation of this application, each transverse slipper 5 is fixedly and intermittently provided with two first lifting devices 6 along the transverse bridge direction.

[0074] The intelligent continuous transverse movement construction method also includes:

[0075] Step S3, Limiting Operation: Install the anti-fall beam stop block 12 and support bolts.

[0076] In the specific implementation of this application, after the longitudinal calibration of the railway box girder 1 is completed, the anti-falling beam blocks 12 on both sides of the bridge pier 11 in the transverse direction and the bottom support bolts of the railway box girder 1 are installed. Together with the railway box girder 1 that has been completed at both ends in the longitudinal direction, the limiting structure setting in the transverse and longitudinal directions of the railway box girder 1 to be lowered is completed. It can be used to prevent the railway box girder 1 from undergoing secondary deviation in the transverse and longitudinal directions during the subsequent beam lowering process.

[0077] Before the lateral movement construction is carried out, the bottom support of the railway box girder 1 is installed first, and the support bolts are temporarily placed into the bolt holes corresponding to the top pad stone 10 of the pier 11.

[0078] Step S4 includes: multiple second lifting devices 9 descend until multiple first lifting devices 6 take over supporting the railway box girder 1, multiple second lifting devices 9 continue to descend for a first stroke and then stop, multiple first lifting devices 6 descend until multiple second lifting devices 9 take over supporting the railway box girder 1, multiple first lifting devices 6 continue to descend for a first stroke, repeating the cycle until the railway box girder 1 falls onto the bridge pier 11.

[0079] In the specific implementation of this application, after the first lifting device 6 takes over supporting the railway box girder 1 from the second lifting device 9, it continues to descend by 2cm and then stops. Similarly, after the first lifting device 6 takes over supporting the railway box girder 1 from the first lifting device 6, it continues to descend by 2cm and then stops. That is, the first stroke is 2cm. The first lifting device 6 and the second lifting device 9 are also equipped with displacement sensors to monitor the displacement of the first lifting device 6 and the second lifting device 9 in real time. The first lifting device 6 and the second lifting device 9 are also equipped with balance control valves to ensure the synchronization effect between the first lifting device 6 and between the second lifting device 9.

[0080] Compared to the existing technology that uses alternating lifting devices and pads on the top surface of pier 11 to lower the beam, this technical solution, while meeting the basic longitudinal calibration operation function, transforms the second lifting device 9 in the longitudinal calibration system 2 into a beam lowering support structure, thus making full use of the second lifting device 9 and avoiding the duplication of lifting devices and pads, thereby simplifying the construction steps and improving efficiency.

[0081] In step S4, multiple second lifting devices 9 alternately descend on one side; multiple first lifting devices 6 alternately descend on one side.

[0082] In the specific implementation of this application, to prevent resonance of the railway box girder 1 during the lowering process and the resulting construction risks, a single-sided alternating lowering method is adopted. Specifically, first, along the longitudinal direction of the bridge, the railway box girder 1 is lowered by 2cm at the high mileage end, and then by 2cm at the low mileage end; then, along the transverse direction of the bridge, one side of the railway box girder 1 is lowered by 2cm, and then the other side is lowered by 2cm. During the single-sided alternating lowering, the longitudinal and transverse directions can be limited by the anti-falling block 12, the support bolts, and the completed railway box girder 1.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for intelligent continuous transverse moving construction of a railway box girder adjacent to an existing high-speed railway, characterized in that: the railway box girder is transversely moved by an intelligent continuous pushing system, the intelligent continuous pushing system comprising a control system, a hydraulic pump station and continuous jacks; the continuous jacks are slidably arranged on lateral slides at both sides of the bottom of the railway box girder and used to continuously push lateral shoes to move laterally; the hydraulic pump station is used to steplessly regulate the speed of the continuous jacks; the method comprises the following steps: S1. Transverse moving operation: the continuous jacks on the lateral slides at both sides of the bottom of the railway box girder are simultaneously started to perform pushing operation; the control system synchronously collects and compares the displacement data of the continuous jacks and controls the hydraulic pump station to perform real-time speed compensation for the continuous jacks; S4. Beam lowering operation; a longitudinal calibration system is arranged between the piers corresponding to the railway box girder, the longitudinal calibration system comprising longitudinal slides, longitudinal shoes, second lifting devices and second temporary supports; the second temporary supports are symmetrically distributed between the piers in the transverse direction of the bridge and used to support the longitudinal slides; the longitudinal shoes are slidably arranged on the corresponding longitudinal slides in the longitudinal direction of the bridge, and each longitudinal shoe is fixedly provided with a plurality of second lifting devices in the longitudinal direction of the bridge; the longitudinal slides are located below the lateral slides; the method further comprises the following steps: S2. Longitudinal calibration operation: after the railway box girder is transversely moved to a position, the plurality of second lifting devices are started to lift the railway box girder until the railway box girder is separated from the lateral slides, the longitudinal shoes are started to drive the railway box girder to move in the longitudinal direction of the bridge until the railway box girder is longitudinally moved to a position; each lateral shoe is fixedly provided with a plurality of first lifting devices in the transverse direction of the bridge; S4. comprises the following steps: the plurality of second lifting devices are lowered until the plurality of first lifting devices replace the railway box girder, the plurality of second lifting devices are stopped after continuing to lower for a first stroke, the plurality of first lifting devices are lowered until the plurality of second lifting devices replace the railway box girder, the plurality of first lifting devices continue to lower for a first stroke, and the above steps are repeated until the railway box girder is lowered onto the piers.

2. The intelligent continuous transverse moving construction method for a railway box girder adjacent to an existing high-speed railway according to claim 1, characterized in that, The intelligent continuous pushing system comprises displacement sensors, and the control system collects the displacement data of the continuous jacks through the displacement sensors.

3. The intelligent continuous transverse moving construction method of a railway box girder adjacent to an existing high-speed railway according to claim 1, characterized in that, A scale is arranged on the lateral slide, and the bottom of the railway box girder is provided with an identifier; S1. further comprises the following step: the displacement data of the railway box girder are manually observed in real time by means of the relative position change between the scale and the identifier.

4. The method according to claim 1, characterized in that: S1. further comprises the following steps: when the remaining transverse moving distance is the last 1 m, the pushing speed of the continuous jacks gradually slows down, and a first stopper is arranged at one end of the lateral slide to prevent overpulling during the transverse moving operation.

5. The intelligent continuous transverse moving construction method of a railway box girder adjacent to an existing high-speed railway according to claim 1, characterized in that, The top of the longitudinal slide is fixedly connected with the bottom of the lateral slide.

6. The intelligent continuous transverse moving construction method of a railway box girder adjacent to an existing high-speed railway according to claim 1, characterized in that, The method further comprises the following steps: Step S3, limiting operation: install the beam stopper and support bolt.

7. The intelligent continuous transverse moving construction method of a railway box girder adjacent to an existing high-speed railway according to claim 1, characterized in that, In step S4, the plurality of second jacking devices are alternately lowered on one side; the plurality of first jacking devices are alternately lowered on one side.

Citation Information

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