An integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip and its construction method

Abstract

The present invention relates to an integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip, which includes an integrated anti-seismic springboard, a bridge head foundation enclosure and a bridge pier; Integrated anti-seismic springboard: The integrated anti-seismic springboard includes a bridge plate part and a springboard part. An anti-seismic movable support leg is arranged at the boundary between the bridge plate part and the springboard part. The anti-seismic movable support leg is arranged at the bottom of the integrated anti-seismic springboard. The springboard part is cantilevered and has the same elevation as the road surface structure; Bridge head foundation enclosure: The bridge head foundation enclosure includes bridge head row piles and a capping beam. An anti-seismic movable bearing corresponding to the anti-seismic movable support leg is arranged at the top of the capping beam; The purpose of the present invention is to solve the technical problems such as bump at bridge head, easy deformation and slip of the bridge head approach slab in the prior art, and thus propose an integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip and its construction method. By using the construction method of alternately supporting and synchronously descending with the anti-seismic movable support leg and the jack, the installation accuracy and efficiency of the bridge plate are greatly improved, the labor intensity is reduced, and the labor cost is lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and particularly to an integrated seismic jump board system for treating vehicle bump at bridge head and anti-sliding. Background Art

[0002] Vehicle bump at bridge head refers to the phenomenon that when an automobile passes through this section, the wheels vibrate up and down due to the settlement between the bridge structure and the embankment behind the bridge abutment exceeding a certain limit value. This settlement phenomenon will affect the normal use of high-grade highways and people's overall evaluation of high-grade highways. At the same time, the up-and-down vibration of the wheels will also affect driving safety, speed and comfort, as well as the service life of automobiles and bridges.

[0003] Vehicle bump at bridge head is caused by the settlement difference between the rigidly supported bridge abutment and the relatively flexible filled embankment. In response to this problem, the international solution is to add a 30 - 50m long transition section between the rigid bridge abutment and the flexible embankment, and the filler gradation changes gradually as appropriate until the transition at the bridge head is completed. Although this method will reduce the differential settlement and alleviate vehicle bump at bridge head, it does not give a clear and specific design method, but only generally suggests treating vehicle bump at bridge head as an independent design problem and taking preventing its occurrence as one of the design goals. In addition, the design methods such as increasing the structure of the approach slab, the method of pre-casting elevation, and special treatment of the bridge head subgrade proposed by many domestic experts and scholars cannot completely solve the problem of vehicle bump at bridge head and need to be used together with other treatment measures.

[0004] Therefore, it is an urgent problem to be solved to develop a bridge head subgrade structure that can prevent vehicle bump at bridge head, improve the problem of insufficient bearing capacity of the bridge head subgrade, and has good stability and convenient construction. Summary of the Invention

[0005] The present invention provides an integrated seismic jump board system for treating vehicle bump at bridge head and anti-sliding, which is realized by adopting the following technical solutions:

[0006] An integrated seismic jump board system for treating vehicle bump at bridge head and anti-sliding, comprising an integrated seismic jump board, a bridge head foundation enclosure and a bridge pier;

[0007] Integrated seismic jump board: The integrated seismic jump board includes a bridge board part and a jump board part. An anti-seismic movable leg is arranged at the boundary between the bridge board part and the jump board part. The anti-seismic movable leg is arranged at the bottom of the integrated seismic jump board. The jump board part is cantilevered and has the same elevation as the road surface structure;

[0008] Bridge head foundation enclosure: The bridge head foundation enclosure includes bridge head row piles and a capping beam. An anti-seismic movable support corresponding to the anti-seismic movable leg is arranged at the top of the capping beam;

[0009] Bridge pier: The bridge pier is arranged away from the retaining wall of the bridgehead foundation and supports at the free end of the bridge slab part of the integral seismic springboard.

[0010] Furthermore, a group of stub piles is arranged at the bottom of the free end of the springboard part, and the group of stub piles is evenly arranged along the width direction of the springboard part.

[0011] Furthermore, the seismic movable support leg is provided with a pedestal and a support leg. The pedestal is a frustum of a cone, and the support leg is hemispherical. The support leg is arranged at the center of the small bottom surface of the frustum of a cone. The pedestal and the support leg are integral and fixedly connected with the integral seismic springboard. The seismic movable support legs are evenly arranged along the width direction of the integral seismic springboard.

[0012] Furthermore, the seismic movable bearing is provided with a pedestal groove and a hemispherical groove corresponding to the pedestal and the support leg respectively. A buffer rubber pad is arranged between the seismic movable bearing and the seismic movable support leg, and the buffer rubber pad covers the top of the capping beam.

[0013] Furthermore, a first temporary support groove and a second temporary support groove are respectively arranged on both sides of the integral seismic springboard along the length direction at the top of the capping beam. The bottom elevation of the first temporary support groove and the second temporary support groove is lower than the lowest elevation of the seismic movable bearing, and the elevation difference is the height of a 500t jack.

[0014] Furthermore, the bridge pier is provided with a support column and a bridge. A third temporary support groove is arranged on one side of the top of the bridge close to the integral seismic springboard, and a fourth temporary support groove is arranged in the middle of the top of the bridge. Embedded connecting bolts are arranged at the free end of the bridge slab part corresponding to the third temporary support groove and the fourth temporary support groove. Embedded connecting studs are arranged at the third temporary support groove and the fourth temporary support groove. The embedded connecting bolts and the embedded connecting studs are connected through a threaded sleeve. The bottom elevation of the third temporary support groove and the fourth temporary support groove is lower than the lowest elevation of the seismic movable bearing, and the elevation difference is the height of a 500t jack. After the integral seismic springboard is installed, the third temporary support groove and the fourth temporary support groove are filled with concrete for plugging.

[0015] Furthermore, the length of the bridge slab part is more than five times the length of the springboard part.

[0016] The present invention provides a construction method for an integral seismic springboard system for treating vehicle bumping at bridgeheads and anti-sliding, including the following steps:

[0017] Construction of the support structure: Construct the retaining wall of the bridgehead foundation and the bridge pier according to the requirements of the design drawings and construction specifications;

[0018] Construction of the roadbed: Excavate the soil body behind the row piles to a depth below the length of the group of stub piles;

[0019] Integrated seismic-resistant springboard hoisting and positioning:

[0020] 1. Place the first group of 500t jacks, the second group of 500t jacks, the third group of 500t jacks, and the fourth group of 500t jacks for temporary support in the first temporary support groove, the second temporary support groove, the third temporary support groove, and the fourth temporary support groove on the already installed capping beam and bridge respectively. Extend the four groups of jacks to the same height and wait. Set the first group of 500t jacks and the fourth group of 500t jacks as the outer synchronous temporary support group, and set the second group of 500t jacks and the third group of 500t jacks as the inner synchronous temporary support group;

[0021] 2. Use a lifting device to hoist the integrated seismic-resistant springboard above the capping beam and bridge, and slowly place the integrated seismic-resistant springboard on the first group of 500t jacks, the second group of 500t jacks, the third group of 500t jacks, and the fourth group of 500t jacks. After releasing the hook, the integrated seismic-resistant springboard is statically placed for 6 hours under the support of the four groups of jacks;

[0022] 3. After the static placement is completed, test the elevation of each part of the integrated seismic-resistant springboard. After ensuring that the integrated seismic-resistant springboard is on a horizontal plane, the next construction process can be carried out;

[0023] Synchronous installation of the integrated seismic-resistant springboard: Through the computer control system, first control the outer synchronous temporary support group to synchronously descend to the first preset height. At this time, the integrated seismic-resistant springboard is supported by the inner synchronous support group. Then control the inner synchronous support group to synchronously descend until it reaches the outer synchronous temporary support group. At this time, the integrated seismic-resistant springboard is converted to be supported by the outer synchronous temporary support group, and the inner synchronous temporary support group continues to descend to the second preset height, realizing the alternating support of the outer synchronous temporary support group and the inner synchronous temporary support group. Repeat this process until the integrated seismic-resistant springboard is accurately installed to the predetermined elevation;

[0024] Connect the integrated seismic-resistant springboard to the bridge pier: After the integrated seismic-resistant springboard is hoisted and positioned, turn the threaded sleeve to connect the embedded connecting bolt and the embedded connecting stud, and then pour concrete into the third temporary support groove and the fourth temporary support groove for sealing;

[0025] Backfill the soil behind the row piles: Backfill the subgrade structure layer in three layers and backfill it to the bottom elevation of the springboard part;

[0026] Forming of the integrated seismic-resistant springboard system: Pave the road pavement structure and control the top elevation of the pavement structure to be the same as the top elevation of the springboard part;

[0027] After adopting the above technical solutions, the beneficial effects of the present invention are:

[0028] In the present invention, the provision of the integral seismic springboard is conducive to restricting the movement of the bridgehead springboard, completely solving the technical problems that the bridgehead slab in the prior art is only supported on one side of the capping beam, and the slab is prone to slip and follow the uneven settlement of the soil body.

[0029] In the present invention, the construction of the seismic movable support system can, on the basis of ensuring the support and slip restriction of the integral seismic springboard, make the integral seismic springboard have a certain degree of mobility. While the integral seismic springboard has seismic function, it can also make the integral seismic springboard adapt to the uneven settlement of the soil body, changing from a rigid connection to a movable connection, and improving the service life of the integral seismic springboard.

[0030] In the present invention, the provision of the half-length pile group makes the integral seismic springboard have a certain degree of movement resistance, ensuring that the integral seismic springboard has a slight movement amplitude, and when it moves, it can compact the fill between the half-length pile group and the row piles, reducing the impact of uneven settlement of the soil body.

[0031] In the present invention, the fixed connection between the integral seismic springboard and the bridge pier and the length of the springboard part is much shorter than the length of the bridge board part, ensuring that the integral seismic springboard will not tilt when the load at the springboard part is too high.

[0032] In the present invention, the integral seismic springboard is alternately supported by the external synchronous temporary support group and the internal synchronous support group to perform staged synchronous lowering of the board, so as to achieve the purpose of accurately installing the integral seismic springboard to the predetermined elevation, thereby reducing risks in terms of safety, quality, etc., improving the installation accuracy, shortening the installation period, and reducing the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 It is a schematic structural diagram of an integral seismic springboard system for treating bridgehead bumping and anti-slip provided by the embodiment of the present application.

[0035] Figure 2 It is a schematic diagram of the distribution of the half-length pile group of the integral seismic springboard system for treating bridgehead bumping and anti-slip provided by the embodiment of the present application.

[0036] Figure 3 It is a schematic structural diagram of the seismic movable support leg of the integral seismic springboard system for treating bridgehead bumping and anti-slip provided by the embodiment of the present application.

[0037] Figure 4 Schematic diagram of the distribution of seismic movable legs of the integrated seismic springboard system for specifically treating bump at bridge head and anti-slip provided by the embodiment of the present application.

[0038] Figure 5 Schematic diagram of the structure of the seismic movable support of the integrated seismic springboard system for specifically treating bump at bridge head and anti-slip provided by the embodiment of the present application.

[0039] Figure 6 Partial schematic diagram of the integrated seismic springboard system for specifically treating bump at bridge head and anti-slip provided by the embodiment of the present application.

[0040] Figure 7 Construction schematic diagram of the integrated seismic springboard system for specifically treating bump at bridge head and anti-slip provided by the embodiment of the present application.

[0041] Explanation of reference numerals:

[0042] 100 - Integrated seismic springboard, 101 - Bridge plate part, 102 - Springboard part, 103 - Seismic movable leg, 104 - Half-pile group, 105 - Pedestal, 106 - Leg, 107 - Embedded connecting bolt, 201 - Bridge head row pile, 202 - Capping beam, 203 - Seismic movable support, 204 - Table groove, 205 - Hemispherical groove, 206 - Buffer rubber pad, 207 - First temporary support groove, 208 - Second temporary support groove, 301 - Support column, 302 - Bridge, 303 - Third temporary support groove, 304 - Fourth temporary support groove, 305 - Embedded connecting stud, 306 - Threaded sleeve. Specific embodiments

[0043] Through the following description of the embodiments, it will be more helpful for the public to understand the present invention. However, the specific embodiments given by the applicant should not be regarded as a limitation to the technical solution of the present invention. Any change in the definition of components or technical features, or any formal but not substantial transformation of the overall structure should be regarded as the protection scope defined by the technical solution of the present invention.

[0044] In the present application, unless otherwise clearly specified or limited, terms such as "installation", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or a communication inside two components, or just a surface contact, or a surface contact connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] The present invention is implemented by adopting the following technical solutions:

[0046] As shown Figure 1 in the figure, an integrated seismic springboard system for treating vehicle bumping at bridgeheads and resisting slippage includes an integrated seismic springboard 100, a bridgehead foundation enclosure, and a bridge pier;

[0047] Integrated seismic springboard 100: The integrated seismic springboard 100 includes a bridge plate part 101 and a springboard part 102. At the boundary line between the bridge plate part 101 and the springboard part 102, there is a seismic movable support leg 103. The seismic movable support leg 103 is arranged at the bottom of the integrated seismic springboard 100. The springboard part 102 is cantilevered and has the same elevation as the road surface structure;

[0048] Bridgehead foundation enclosure: The bridgehead foundation enclosure includes bridgehead row piles 201 and a capping beam 202. At the top of the capping beam 202, there is a seismic movable bearing 203 corresponding to the seismic movable support leg 103;

[0049] Bridge pier: The bridge pier is arranged away from the bridgehead foundation enclosure and supports at the free end of the bridge plate part 101 of the integrated seismic springboard 100.

[0050] The setting of the integrated seismic springboard is beneficial to restricting the movement of the bridgehead springboard, and completely solves the technical problems of easy slippage of the approach slab and easy following of uneven settlement of the soil body existing in the prior art where the approach slab is only supported on one side in the capping beam.

[0051] As shown Figure 2 in the figure, at the bottom of the free end of the springboard part 102, there is a group of half piles 104, and the group of half piles 104 is uniformly arranged along the width direction of the springboard part 102.

[0052] The setting of the group of half piles enables the integrated seismic springboard to have a certain resistance to movement, ensures that the integrated seismic springboard has a slight movement amplitude, and when it moves, it can compact the fill soil between the group of half piles and the row piles, reducing the influence of uneven settlement of the soil body.

[0053] As shown Figure 3 、 4 in the figure, the seismic movable support leg 103 is provided with a pedestal 105 and a support leg 106. The pedestal 105 is a frustum of a cone, the support leg 106 is a hemisphere, the support leg 106 is arranged at the center of the small bottom surface of the frustum of a cone. The pedestal 105 and the support leg 106 are integrated and fixedly connected to the integrated seismic springboard 100. The seismic movable support legs 103 are uniformly arranged along the width direction of the integrated seismic springboard 100.

[0054] As shown Figure 5As shown, the seismic movable support 203 is provided with a platform groove 204 and a hemispherical groove 205 corresponding to the platform 105 and the support leg 106 respectively, and a buffer rubber pad 206 is provided between the seismic movable support 203 and the seismic movable support leg 103, and the buffer rubber pad 206 covers the top of the cap beam 202.

[0055] The construction of the seismic movable support system can make the integrated seismic springboard have a certain degree of mobility on the basis of ensuring the support and limiting the slippage of the integrated seismic springboard. While the integrated seismic springboard has seismic resistance, it can also enable the integrated seismic springboard to adapt to uneven settlement of the soil, changing the rigid connection into a movable connection, thereby increasing the service life of the integrated seismic springboard.

[0056] Furthermore, a first temporary support groove 207 and a second temporary support groove 208 are respectively provided on both sides of the top of the cap beam 202 along the length direction of the integrated seismic springboard 100, and the bottom elevations of the first temporary support groove 207 and the second temporary support groove 208 are lower than the lowest elevation of the seismic movable bearing 203, and the elevation difference is the height of a 500t jack.

[0057] like Figure 6 As shown, the pier is provided with a support column 301 and a bridge 302, a third temporary support groove 303 is provided on the top of the bridge 302 along a side close to the integrated seismic springboard 100, a fourth temporary support groove 304 is provided in the middle of the top of the bridge 302, and pre-embedded connecting bolts 107 are provided at the free end of the bridge plate portion 101 corresponding to the third temporary support groove 303 and the fourth temporary support groove 304, and pre-embedded connecting studs 305 are provided at the third temporary support groove 303 and the fourth temporary support groove 304, and the pre-embedded connecting bolts 107 are connected to the pre-embedded connecting studs 305 through threaded sleeves 306, the bottom elevations of the third temporary support groove 303 and the fourth temporary support groove 304 are lower than the lowest elevation of the seismic movable bearing 203, and the elevation difference is the height of a 500t jack, and the third temporary support groove 303 and the fourth temporary support groove 304 are poured with concrete for sealing after the integrated seismic springboard 100 is installed.

[0058] Furthermore, the length of the bridge deck 101 is greater than five times the length of the springboard 102. The fixed connection between the integrated seismic springboard and the bridge pier and the length of the springboard are much shorter than the length of the bridge deck, ensuring that the integrated seismic springboard will not be tilted due to excessive load on the springboard.

[0059] like Figure 7 As shown, the present invention provides a construction method of an integrated anti-seismic springboard system for preventing the slip of a bridge head vehicle, comprising the following steps:

[0060] Construction of the support structure: Complete the construction of the bridgehead foundation enclosure and piers in accordance with the requirements of the design drawings and construction specifications;

[0061] Construction of the roadbed: Excavate the soil behind the row piles to a depth below the length of the half-section pile group 104;

[0062] Hoist and position the integrated seismic springboard 100:

[0063] 1. Place the first group of 500t jacks, the second group of 500t jacks, the third group of 500t jacks, and the fourth group of 500t jacks for temporary support on the first temporary support groove 207, the second temporary support groove 208, the third temporary support groove 303, and the fourth temporary support groove 304 on the already installed cap beam 202 and bridge 302 respectively. Extend the four groups of jacks to the same height and wait. Set the first group of 500t jacks and the fourth group of 500t jacks as the outer synchronous temporary support group, and set the second group of 500t jacks and the third group of 500t jacks as the inner synchronous temporary support group;

[0064] 2. Use a lifting device to hoist the integrated seismic springboard 100 above the cap beam 202 and the bridge 302, and slowly place the integrated seismic springboard 100 on the first group of 500t jacks, the second group of 500t jacks, the third group of 500t jacks, and the fourth group of 500t jacks. After releasing the hook, the integrated seismic springboard 100 is left to stand for 6 hours under the support of the four groups of jacks;

[0065] 3. After standing, measure the elevations at various positions of the integrated seismic springboard 100. Only after ensuring that the integrated seismic springboard 100 is on a horizontal plane can the next construction process be carried out;

[0066] Synchronous installation of the integrated seismic springboard 100: Through the computer control system, first control the outer synchronous temporary support group to synchronously descend to the first preset height. At this time, the integrated seismic springboard 100 is supported by the inner synchronous support group. Then control the inner synchronous support group to synchronously descend until it reaches the outer synchronous temporary support group. At this time, the integrated seismic springboard 100 is converted to be supported by the outer synchronous temporary support group, and the inner synchronous temporary support group continues to descend to the second preset height, realizing the alternating support of the outer synchronous temporary support group and the inner synchronous temporary support group. Repeat this process until the integrated seismic springboard 100 is accurately installed to the predetermined elevation;

[0067] Connect the integrated seismic springboard 100 to the pier: After the integrated seismic springboard 100 is hoisted and positioned, turn the threaded sleeve 306 to connect the threaded sleeve 306 to the embedded connecting bolt 107 and the embedded connecting stud 305, and then fill the third temporary support groove 303 and the fourth temporary support groove 304 with concrete for sealing;

[0068] Backfill the soil behind the row piles: Backfill the subgrade structure layer in three layers and backfill it to the bottom elevation of the springboard part 102;

[0069] Form the integrated seismic springboard system: Pave the road pavement structure and control the top elevation of the pavement structure to be the same as the top elevation of the springboard part 102;

[0070] Use the external synchronous temporary support group and the internal synchronous support group to alternately support the integrated seismic springboard, and perform staged synchronous lowering of the board to achieve the purpose of accurately installing the integrated seismic springboard to the predetermined elevation, thereby reducing risks in terms of safety, quality, etc., improving the installation accuracy, shortening the installation period, and reducing the project cost.

[0071] Those skilled in the art should understand that those skilled in the art can implement variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention and will not be elaborated here.

[0072] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and the equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present invention. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the protection of the technical solution of the present invention.

Claims

1. An integrated anti-seismic springboard system for specifically treating bump at bridgehead and anti-slip, characterized in that: It includes an integrated earthquake-resistant springboard, a bridgehead foundation enclosure, and a bridge pier; Integrated earthquake-resistant springboard: The integrated earthquake-resistant springboard includes a bridge plate part and a springboard part. An earthquake-resistant movable support leg is provided at the boundary between the bridge plate part and the springboard part. The earthquake-resistant movable support leg is arranged at the bottom of the integrated earthquake-resistant springboard. The springboard part is cantilevered and has the same elevation as the road surface structure; Bridgehead foundation enclosure: The bridgehead foundation enclosure includes bridgehead row piles and a capping beam. An earthquake-resistant movable support corresponding to the earthquake-resistant movable support leg is provided at the top of the capping beam; Bridge pier: The bridge pier is arranged away from the bridgehead foundation enclosure and supports at the free end of the bridge plate part of the integrated earthquake-resistant springboard; The earthquake-resistant movable support leg is provided with a pedestal and a support leg. The pedestal is a frustum of a cone, and the support leg is hemispherical. The support leg is arranged at the center of the small bottom surface of the frustum of a cone. The pedestal and the support leg are integrated and fixedly connected to the integrated earthquake-resistant springboard. The earthquake-resistant movable support legs are evenly arranged along the width direction of the integrated earthquake-resistant springboard; The earthquake-resistant movable support is provided with a pedestal groove and a hemispherical groove corresponding to the pedestal and the support leg respectively. A buffer rubber pad is arranged between the earthquake-resistant movable support and the earthquake-resistant movable support leg. The buffer rubber pad covers the top of the capping beam.

2. An integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip, characterized in that, At the bottom of the free end of the springboard part, a group of half piles is provided. The group of half piles is evenly arranged along the width direction of the springboard part.

3. An integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip, characterized in that On both sides of the integrated earthquake-resistant springboard along the length direction, a first temporary support groove and a second temporary support groove are respectively provided at the top of the capping beam. The bottom elevation of the first temporary support groove and the second temporary support groove is lower than the lowest elevation of the earthquake-resistant movable support. The elevation difference is the height of a 500t jack.

4. An integrated anti-seismic springboard system for specifically treating vehicle bump at bridgeheads and anti-slip, characterized in that, The bridge pier is provided with a support column and a bridge. On one side of the top of the bridge close to the integrated earthquake-resistant springboard, a third temporary support groove is provided. In the middle of the top of the bridge, a fourth temporary support groove is provided. Embedded connecting bolts are provided at the free end of the bridge plate part corresponding to the third temporary support groove and the fourth temporary support groove. Embedded connecting studs are provided at the third temporary support groove and the fourth temporary support groove. The embedded connecting bolts and the embedded connecting studs are connected through a threaded sleeve. The bottom elevation of the third temporary support groove and the fourth temporary support groove is lower than the lowest elevation of the earthquake-resistant movable support. The elevation difference is the height of a 500t jack. After the installation of the integrated earthquake-resistant springboard is completed, the third temporary support groove and the fourth temporary support groove are filled with concrete for plugging.

5. An integrated anti-seismic springboard system for specifically treating bump at bridge head and anti-slip, characterized in that, The length of the bridge plate part is more than five times the length of the springboard part.

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