Staggered joint supporting structure of retaining wall and bridge plate and construction technology of staggered joint supporting structure

Abstract

The invention relates to the field of civil construction, in particular to a retaining wall and bridge plate staggered joint supporting structure which is arranged between a retaining wall and a bridge deck base plate, gravel soil layers are arranged on the upper side of the retaining wall and the upper side of the bridge deck base plate, and a filling gap is formed between the bridge deck base plate and the retaining wall. The supporting structure comprises a plurality of supporting plates arranged at intervals in the extending direction of the bridge deck base plate, the retaining wall forms a supporting part for bearing the ends of the supporting plates, and the ends, away from the supporting part, of the supporting plates are in lap joint with the bridge deck base plate. The supporting structure further comprises a sealing strip capable of sealing the filling gap, and the sealing strip is arranged to be capable of being installed in or taken out from the lower side of the bridge floor base plate. A stable supporting leakage-proof structure can be provided between the bridge floor base plate and the retaining wall, and the existing problems are effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of civil construction, and in particular to a staggered support structure of a retaining wall and a bridge deck and a construction process thereof. Background Art

[0002] When building roads and bridges near lakes, some roads are often partially built on the ground and partially built over water. Figure 1 and attached Figure 2 The working conditions shown, Figure 2 The right side of the middle road is built directly on the ground, and the left side of the road is formed into a bridge in the form of an arch bridge base. The arch bridge base and the ground are separated by a retaining wall, and the road surface is paved after laying a crushed stone layer as the base layer on the arch bridge base and the ground.

[0003] The gaps between the bridge base and the retaining wall need to be sealed to prevent the collapse of the base layer caused by the leakage of the gravel soil layer. At present, the sealing and sealing treatment for this type of working condition mostly adopts the method of laying waterproof membrane between the retaining wall and the bridge base. Since the settlement degree of the bridge base and the retaining wall after the road construction is different, the waterproof membrane is easy to leak due to rubbing. In addition, part of the gravel in the gravel soil layer is in direct contact with the waterproof membrane, especially when the waterproof membrane leaks and causes excessive leakage of small-sized gravel or soil, the large-sized gravel is in direct contact with the waterproof membrane, and the vibration transmitted by the road surface directly acts between the waterproof membrane and the gravel, accelerating the failure of the waterproof membrane.

[0004] Based on this, the applicant proposed a staggered support structure of a retaining wall and a bridge deck and a construction process thereof to solve the problems existing in the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a staggered support structure for a retaining wall and a bridge deck and a construction process thereof, which can provide a stable support and leak-proof structure between the bridge deck substrate and the retaining wall, effectively solving the existing problems.

[0006] In order to solve the above problems, the present invention provides a staggered support structure for a retaining wall and a bridge deck, which is arranged between the retaining wall and the bridge deck substrate, a gravel soil layer is provided on the upper side of the retaining wall and the bridge deck substrate, and a filling gap is provided between the bridge deck substrate and the retaining wall, the support structure includes a plurality of support plates arranged at intervals along the extension direction of the bridge deck substrate, the retaining wall is formed with a support portion for supporting the end of the support plate, and one end of the support plate away from the supported portion is overlapped on the bridge deck substrate; the support structure also includes a sealing strip capable of closing the filling gap, and the sealing strip is configured to be able to be loaded into or removed from the lower side of the bridge deck substrate.

[0007] Furthermore, the support portion includes a support platform protruding from the retaining wall, the outer edge of the top surface of the support platform is formed with an upwardly protruding limiting rib, and the support plate is provided with a downwardly protruding limiting block at one end facing the support portion; the support plate is overlapped on the support platform.

[0008] Furthermore, a positioning block is provided at the outer end of the support plate, and the width of the positioning block is smaller than the width of the support plate; the bridge deck substrate or the support portion at the position of the positioning block forms a limiting portion, and the limiting portion includes two spaced-apart protrusions, and the distance between the inner sides of the two protrusions is greater than or equal to the width of the positioning block, and the positioning block extends between the two protrusions.

[0009] Furthermore, the support structure also includes a cover plate, which includes a plug plate body that can be inserted between two adjacent support plates and a cover plate body arranged on the top of the plug plate body, and the cover plate body can overlap two adjacent support plates; the width of the plug plate body is smaller than the span of the gap between the two adjacent support plates.

[0010] Furthermore, a permanent filling body is provided between the sealing strip and the supporting plate, and the compressive strength of the permanent filling body is less than 5 MPa.

[0011] Furthermore, the permanent filling body is configured as a foamed concrete filling body.

[0012] Furthermore, the bridge deck substrate is provided with a first connecting rib extending into the upper section of the filling gap, the retaining wall is provided with a second connecting rib extending into the upper section of the filling gap, the first connecting rib and the second connecting rib are arranged separately, and the foamed concrete filling body is cast connected to the first connecting rib and the second connecting rib.

[0013] It is characterized in that the supporting structure also includes a structural tube arranged in the permanent filling body, and the sealing strip is provided with a through hole at a position corresponding to the structural tube; the supporting structure also includes a drain pipe, and the drain pipe can pass through the through hole in a sealed manner and then pass through the structural tube, and a filter section is formed on the upper section of the drain pipe, and the filter section is water-permeable so that the filter section can drain water to the outside through the inner side of the drain pipe.

[0014] The present invention also provides a construction process for a staggered support structure of a retaining wall and a bridge deck, comprising: S1. Build a retaining wall and process a support platform at the position of the retaining wall corresponding to the bridge deck base plate; S2, constructing a bridge deck base plate so that a filling gap is formed between the bridge deck base plate and the retaining wall; S3, pre-fixing a permanent filling body in the upper section of the filling gap; S4, providing a plurality of support plates, wherein the plurality of support plates are arranged between the bridge deck substrate and the retaining wall at intervals along the extension direction of the bridge deck substrate, and one end of the support plate is placed on the support platform, and the other end is placed on the bridge deck substrate; S5. Provide a cover plate, the cover plate comprising a plug plate body that can be inserted between two adjacent support plates, and a cover plate body disposed on top of the plug plate body, wherein the cover plate body can overlap the two adjacent support plates; S6. Fix the sealing strip at the lower section of the filling gap; S7. Fill the bridge deck base and the upper side of the retaining wall with crushed stone soil.

[0015] It is characterized in that S3 includes: S31, presetting an inner structure tube at the position of the permanent filling body, wherein a filling column is inserted into the inner side of the inner structure tube; S32, forming a permanent filling body at the position of the permanent filling body by forming foamed concrete, and pulling out the filling column; S6 includes: S61, processing a mounting hole at a position of the sealing strip corresponding to the inner structure pipe; S62. Provide a drain pipe that can be sealed and installed in the installation hole, wherein the upper section of the drain pipe is formed with a filter section, and the filter section can drain water outward through the inner side of the drain pipe, and fix the sealing strip to the lower section of the filling gap so that the filter section can at least partially extend out of the inner structural tube.

[0016] The beneficial effect of the present invention is that it can provide a stable supporting and leak-proof structure between the bridge deck substrate and the retaining wall, effectively solving the existing problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the local lateral structure of a road structure in an application scenario of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the local cross-sectional structure in the AA direction in the scene shown.

[0019] Figure 3 For an embodiment of the present invention, refer to Figure 2 Schematic diagram of the structure from the perspective shown.

[0020] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] Figure 5 for Figure 4 A schematic diagram of the structure of the support plate and the cover plate after being combined in the illustrated embodiment.

[0022] Figure 6 for Figure 4 The schematic diagram of the partial top view structure after the cover plate and the support plate are installed in the illustrated embodiment.

[0023] Among them: 1. retaining wall; 2. bridge deck base plate; 3. gravel soil layer; 4. support plate; 5. sealing strip; 6. support platform; 7. limiting ribs; 8. limiting blocks; 9. positioning blocks; 10. protrusions; 11. cover plate; 1101. plug-in plate body; 1102. cover plate body; 12. permanent filling body; 13. first connecting ribs; 14. second connecting ribs; 15. structural pipe; 16. through hole; 17. drainage pipe; 1701. filter section. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0025] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0026] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are only connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0029] In the present invention, if Figure 2-6 As shown, a staggered support structure of a retaining wall and a bridge deck is provided, which is arranged between a retaining wall 1 and a bridge deck substrate 2, a crushed stone layer 3 is provided on the upper sides of the retaining wall 1 and the bridge deck substrate 2, a filling gap is provided between the bridge deck substrate 2 and the retaining wall 1, the support structure includes a plurality of support plates 4 arranged at intervals along the extension direction of the bridge deck substrate 2, the retaining wall 1 is formed with a support portion for supporting the end of the support plate 4, and one end of the support plate 4 away from the supported portion is overlapped on the bridge deck substrate 2; the support structure also includes a sealing strip 5 capable of closing the filling gap, and the sealing strip 5 is configured to be able to be loaded into or taken out from the lower side of the bridge deck substrate 2.

[0030] The support structure of the present invention can support and separate the gravel soil layer 3 at the corresponding position through the support plate 4, so as to reduce the direct pressure of the gravel soil layer 3 on the sealing strip 5, so as to maintain the installation stability of the sealing strip 5. Moreover, the large-sized gravel on the upper side is constrained by the support plate 4 to reduce the possibility of direct contact between the large-sized gravel and the sealing strip 5, thereby reducing the possibility of sealing failure of the sealing strip 5 caused by this. In addition, since the sealing strip 5 is loaded or removed from the lower side of the bridge deck substrate 2, after the road construction, when the sealing strip 5 fails and the gap between the bridge deck substrate 2 and the retaining wall 1 becomes larger, the sealing strip 5 can be conveniently removed and replaced. In the process of removing and installing the sealing strip 5, due to the support of the support plate 4 on the upper gravel soil layer 3, the leakage of the gravel soil layer 3 during the replacement of the sealing strip 5 can be reduced.

[0031] Moreover, when the bridge deck substrate 2 and the retaining wall 1 move relative to each other, the support plate 4 can move relative to the bridge deck substrate 2 so that both ends of the support plate 4 can be stably supported, thereby enabling the support plate 4 to be stably supported.

[0032] A particularly important effect of the present invention is that by installing or removing the sealing strip 5 from the lower side of the bridge deck substrate 2, the sealing effect of the position of the sealing strip 5 can be easily observed after road construction, and the installation and removal of the sealing strip 5 can also be facilitated.

[0033] In a preferred embodiment, for the structure of the present invention, further specifically speaking, as shown in the figure, the supporting part includes a supporting platform 6 protruding from the retaining wall 1, the outer edge of the top surface of the supporting platform 6 is formed with an upward protruding limiting rib 7, and the supporting plate 4 is provided with a downward protruding limiting block 8 at one end facing the supporting part; the supporting plate 4 is overlapped on the supporting platform 6.

[0034] As shown in the figure, by setting the limit block 8 and the limit rib 7, when the bridge deck base plate 2 and the retaining wall 1 move relative to each other, the limit block 8 and the limit rib 7 can be used to limit the support plate 4 to prevent the support plate 4 from moving in a direction away from the retaining wall 1, which may cause the support effect of the support plate 4 to decrease.

[0035] Moreover, as shown in the figure, a support platform 6 is set on the upper side of the bridge deck substrate 2, and the support platform 6 can assist in covering the gap between the bridge deck substrate 2 and the retaining wall 1, further reducing the pressure of the gravel soil layer 3 on the upper side of the gap and directly transmitting it downward to the sealing strip 5.

[0036] In a preferred embodiment, the structure of the present invention is further optimized in that, as shown in the figure, a positioning block 9 is provided at the outer end of the support plate 4, and the width of the positioning block 9 is smaller than the width of the support plate 4; the bridge deck substrate 2 or the support portion at the position of the positioning block 9 forms a limiting portion, and the limiting portion includes two spaced-apart protrusions 10, and the distance between the inner sides of the two protrusions 10 is greater than or equal to the width of the positioning block 9, and the positioning block 9 extends between the two protrusions 10.

[0037] As shown in the figure, by providing a positioning block 9 and a limiting portion, the support plate 4 can be limited in the extension direction of the edge of the bridge deck substrate 2 to prevent excessive lateral movement of the support plate 4 resulting in an excessive gap between adjacent support plates 4.

[0038] In the illustrated embodiment, more specifically, as shown in the figure, positioning blocks 9 are respectively provided at both ends of the support plate 4, the support platform 6 is provided with a protrusion 10, and the bridge deck substrate 2 is provided with a protrusion 10, so that the support plate 4 can be limited at both ends of the support plate 4 at the same time, so that the support plate 4 can be distributed relatively evenly to prevent the gap between two adjacent support plates 4 from being too large.

[0039] In the illustrated embodiment, the protrusion 10 of the bridge deck substrate 2 is further specifically described, as shown in the figure, an iron plate is fixed at the edge of the bridge deck substrate 2, and the edge of the support plate 4 is overlapped on the iron plate, so that the wear of the bridge deck substrate 2 can be reduced when the bridge deck substrate 2 and the support plate 4 transmit vibration. The protrusion 10 is set on the iron plate, so that the installation and fixation of the protrusion 10 can be completed at the same time after the iron plate is installed in a post-fixing manner.

[0040] For the protrusion 10 at the support platform 6, the specific installation method is to install an iron plate with the protrusion 10 on the top surface of the support platform 6, which can also reduce the wear of the support plate 4 on the support platform 6 when the retaining wall 1 transmits vibration to the support plate 4, and at the same time, the setting of the protrusion 10 can be easily completed.

[0041] Regarding the installation of the iron plate on the supporting bridge plate and the supporting platform 6, it is preferred to use bolts to fix the connection.

[0042] For the implementation manner of the present invention, in a preferred embodiment, a further optimized setting is that the support structure also includes a cover plate 11, and the cover plate 11 includes an insert plate body 1101 that can be inserted between two adjacent support plates 4, and a cover plate body 1102 arranged on the top of the insert plate body 1101, and the cover plate body 1102 can overlap two adjacent support plates 4; the width of the insert plate body 1101 is smaller than the span of the gap between the two adjacent support plates 4.

[0043] By providing the cover plate 11, the gravel of the gravel soil layer 3 can be further reduced from leaking downwards between two adjacent support plates 4, thereby further preventing the sealing strip 5 from contacting the gravel, and further improving the use stability of the sealing strip 5. Moreover, by providing the cover plate 11, the support stability of the support plate 4 position on the gravel soil layer 3 can be improved, so as to reduce the downward leakage of materials in the gravel soil layer 3 and reduce the pressure transmitted by the gravel soil layer 3 to the sealing strip 5 position, and when the sealing strip 5 is removed, the downward leakage of the gravel soil layer 3 from between the bridge deck base plate 2 and the retaining wall 1 can be reduced.

[0044] Moreover, as shown in the figure, the cover plate 11 is roughly T-shaped, so that after the plug body 1101 is inserted into two adjacent support plates 4, the cover plate 11 can be prevented from moving randomly to maintain the position stability of the cover plate 11.

[0045] In the summary of the preferred embodiments, the further optimized setting of the present invention is that, as shown in the figure, a permanent filling body 12 is provided between the sealing strip 5 and the support plate 4, and the compressive strength of the permanent filling body 12 is less than 5MPa. By providing the permanent filling body 12, the upper gravel soil layer 3 can be further prevented from leaking down to the sealing strip 5 position, especially reducing the leakage of small-size gravel and soil in the gravel soil layer 3 to the sealing strip 5 position. When the sealing strip 5 is disassembled, the permanent filling body 12 can further block the upper gravel soil layer 3 from leaking out.

[0046] Among them, by controlling the compressive strength of the permanent filling body 12, when the bridge deck substrate 2 and the retaining wall 1 move closer to each other, the permanent filling body 12 can be easily deformed and damaged under compression, so that the permanent filling body 12 can adapt to the changes in the gap between the bridge deck substrate 2 and the retaining wall 1.

[0047] As a preferred embodiment, for the implementation of the present invention, a further optimized setting is that the permanent filling body 12 is set as a foamed concrete filling body. Through the foamed concrete filling body, the permanent filling body 12 can be tightly combined with the bridge deck substrate 2 and the retaining wall 1 on both sides during road construction to prevent the gravel soil layer 3 from leaking down. Moreover, during the subsequent relative movement between the bridge deck substrate 2 and the retaining wall 1, the foamed concrete is more likely to develop cracks, so that the foamed concrete quickly produces cracks to adapt to the change in the gap width between the bridge deck substrate 2 and the retaining wall 1. In addition, the foamed concrete has a certain vibration isolation effect, which can reduce the vibration transmitted between the bridge deck substrate 2 and the retaining wall 1.

[0048] For the illustrated embodiment, the present invention is further optimized in that, as shown in the figure, the bridge deck substrate 2 is provided with a first connecting bar 13 extending into the upper section of the filling gap, and the retaining wall 1 is provided with a second connecting bar 14 extending into the upper section of the filling gap, the first connecting bar 13 and the second connecting bar 14 are arranged separately, and the foamed concrete filling body is cast and connected to the first connecting bar 13 and the second connecting bar 14.

[0049] The present invention sets a first connecting rib 13 and a second connecting rib 14, so that the position of the permanent filling body 12 can be limited by the first connecting rib 13 and the second connecting rib 14 to prevent the permanent filling body 12 from moving up and down, especially when the bridge deck substrate 2 and the retaining wall 1 move relative to each other, the position of the permanent filling body 12 can be ensured to be stable, so as to prevent the permanent filling body 12 from moving up and down and causing the gravel soil layer 3 to fail to be blocked.

[0050] The present invention sets a permanent filling body 12 of foamed concrete, so that after the road construction, when the bridge deck substrate 2 and the retaining wall 1 are synchronously displaced, the permanent filling body 12 can maintain structural stability, so as to stably support and block the gravel soil layer 3 on the upper side. When the bridge deck substrate 2 and the retaining wall 1 are relatively displaced, the first connecting rib 13 and the second connecting rib 14 of the foamed concrete filling body maintain a relatively stable position. When cracks are generated in the foamed concrete due to compression or tension, or cracks are generated between the foamed concrete filling body and the bridge deck substrate 2 or the retaining wall 1, some small-sized gravel or soil in the gravel soil layer 3 can be filled in these cracks, further ensuring the barrier effect of the position of the permanent filling body 12.

[0051] The arrangement of the permanent filling body 12 is not limited to the foamed concrete as shown in the figure. In optional embodiments, other structural forms may also be used, such as a permanent filling body 12 in the form of channel steel or a permanent filling body 12 of foamed polyurethane.

[0052] In the illustrated embodiment, a further optimized arrangement for the structure of the present invention is that, as shown in the figure, the support structure also includes a structural tube 15 arranged on the permanent filling body 12, and the sealing strip 5 is provided with a through hole 16 at a position corresponding to the structural tube 15; the support structure also includes a drain pipe 17, and the drain pipe 17 can pass through the through hole 16 in a sealed manner and then pass through the structural tube 15, and a filter section 1701 is formed on the upper section of the drain pipe 17, and the filter section 1701 is water-permeable so that the filter section 1701 can drain water to the outside through the inner side of the drain pipe 17.

[0053] As shown in the figure, by setting up the structural pipe 15, after the road is built, the drainage pipe 17 can be inserted through the through hole 16 of the sealing strip 5, and the filter section 1701 can be extended into the position of the permanent filling body 12, so that when there is seepage at the gap between the bridge deck substrate 2 and the retaining wall 1, the water can be filtered through the filter section 1701 and then discharged, so as to prevent the seepage water from carrying the soil or small-sized gravel in the gravel soil layer 3 to leak, thereby further maintaining the stability of the gravel soil layer 3. By discharging the water in time, the problems of accelerated aging of the sealing strip 5 caused by water accumulation and damage to the sealing strip 5 caused by freezing of water accumulation in winter can be reduced.

[0054] Regarding the structural form of the drain pipe 17, in the illustrated embodiment, to be more specific, as shown in the figure, the drain pipe 17 includes a pipe body, which is hollowed out at the position of the filter section 1701, and a filter cotton is arranged inside the filter section 1701. In order to improve the drainage efficiency of the filter section 1701, in the illustrated embodiment, the outer diameter of the filter section 1701 is smaller than the radial dimension of the inner hole of the structural pipe 15, so that there is a gap between the filter section 1701 and the inner surface of the structural pipe 15. The lower section of the pipe body is inserted in the sealing strip 5 to prevent water leakage from the outside of the pipe body.

[0055] The present invention also provides a construction process for a staggered support structure of a retaining wall and a bridge deck, comprising: S1, construct a retaining wall 1, and process a support platform 6 at a position of the retaining wall 1 corresponding to the bridge deck base plate 2; S2, constructing the bridge deck substrate 2 so that a filling gap is formed between the bridge deck substrate 2 and the retaining wall 1; S3, pre-fixing the permanent filling body 12 in the upper section of the filling gap; S4, providing a plurality of support plates 4, wherein the plurality of support plates 4 are arranged between the bridge deck substrate 2 and the retaining wall 1 at intervals along the extension direction of the bridge deck substrate 2, and one end of the support plate 4 is placed on the support platform 6, and the other end is placed on the bridge deck substrate 2; S5. Provide a cover plate 11, the cover plate 11 comprising a plug plate body 1101 that can be inserted between two adjacent support plates 4, and a cover plate body 1102 disposed on the top of the plug plate body 1101, and the cover plate body 1102 can overlap the two adjacent support plates 4; S6, fixing the sealing strip 5 at the lower section of the filling gap; S7, filling the bridge deck base plate 2 and the upper side of the retaining wall 1 with crushed stone soil.

[0056] In a preferred embodiment, for the specific implementation of the construction process, more specifically, S3 includes S31, presetting an inner structure tube 15 at the position of the permanent filling body 12, wherein a filling column is inserted into the inner side of the inner structure tube 15; S32, forming a permanent filling body 12 at the position of the permanent filling body 12 by forming foamed concrete, and pulling out the filling column; S6 includes S61, processing a mounting hole at a position of the sealing strip 5 corresponding to the inner structure tube 15; S62. Provide a drain pipe 17 that can be sealably installed in the mounting hole, wherein the upper section of the drain pipe 17 is formed with a filter section 1701, and the filter section 1701 can drain water outward through the inner side of the drain pipe 17, and fix the sealing strip 5 to the lower section of the filling gap so that the filter section 1701 can at least partially extend out of the inner structural tube 15.

[0057] Regarding the application of the through hole 16 and the structural hole, in the embodiment of the present invention, there is also the following method: after a period of road construction, when the bridge deck substrate 2 and the retaining wall 1 settle and stabilize, when the bridge deck substrate 2 and the retaining wall 1 show obvious asynchronous movement, the drainage pipe 17 can be removed, and the foamed concrete can be injected into the upper side of the sealing strip 5, so that the permanent filling body 12 is secondary molded to adapt to the width change between the bridge deck substrate 2 and the retaining wall 1, and the cracks generated by the molded foamed concrete can be filled. After the grouting is completed, the filling column is inserted into the through hole 16 and the structural pipe 15. After the secondary injected foamed concrete is formed, the filling column can be pulled out, and then the drainage pipe 17 can be inserted through the through hole 16. Among them, in order to facilitate the secondary foamed concrete injection, the side where the sealing strip 5 is inserted can be pulled outward by 1-5 cm to facilitate the foamed concrete to flow between the permanent filling body 12 and the sealing strip 5.

[0058] In the illustrated embodiment, more specifically, the bridge deck substrate 2 is configured as an arched bridge deck substrate 2, which is not a limitation of the present invention. In an optional embodiment, a flat bridge deck substrate 2 may also be used. In the illustrated embodiment, a plurality of drainage pipes 17 are provided along the extension direction of the bridge deck substrate 2. Preferably, three drainage pipes 17 are provided, and one drainage pipe 17 is provided at each end of the arched bridge deck substrate 2 and at the middle of the top.

[0059] Regarding the setting of the sealing strip 5 in the present application, a rubber sealing strip 5 is preferably used, and the sealing strip 5 is fixed by bonding or interference fitting.

[0060] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0061] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A staggered support structure of a retaining wall and a bridge deck, arranged between a retaining wall and a bridge deck substrate, wherein a crushed stone layer is arranged on the upper side of the retaining wall and the bridge deck substrate, characterized in that: There is a filling gap between the bridge deck substrate and the retaining wall, the support structure includes a plurality of support plates spaced apart along the extending direction of the bridge deck substrate, the retaining wall is formed with a support portion supporting the end of the support plate, and one end of the support plate away from the supported portion is overlapped on the bridge deck substrate; The supporting structure further comprises a sealing strip capable of closing the filling gap, wherein the sealing strip is arranged to be installed in or removed from the lower side of the bridge deck substrate.

2. The staggered support structure of the retaining wall and the bridge deck according to claim 1 is characterized in that: The support portion comprises a support platform protruding from the retaining wall, an outer edge of the top surface of the support platform is formed with an upwardly protruding limiting rib, and a downwardly protruding limiting block is provided at one end of the support plate facing the support portion; the support plate is overlapped on the support platform.

3. The staggered support structure of the retaining wall and the bridge deck according to claim 2 is characterized in that: A positioning block is provided at the outer end of the support plate, and the width of the positioning block is smaller than the width of the support plate; The bridge deck substrate or the supporting portion at the position of the positioning block forms a limiting portion, and the limiting portion includes two spaced-apart protrusions, the distance between the inner sides of the two protrusions is greater than or equal to the width of the positioning block, and the positioning block extends between the two protrusions.

4. The staggered support structure of the retaining wall and the bridge deck according to claim 1 is characterized in that: The support structure further includes a cover plate, the cover plate including a plug plate body that can be inserted between two adjacent support plates, and a cover plate body disposed on top of the plug plate body, the cover plate body being able to overlap the two adjacent support plates; The width of the inserting plate body is smaller than the span of the gap between two adjacent supporting plates.

5. The staggered support structure of the retaining wall and the bridge deck according to any one of claims 1 to 4, characterized in that: A permanent filling body is arranged between the sealing strip and the supporting plate, and the compressive strength of the permanent filling body is less than 5 MPa.

6. The staggered support structure of the retaining wall and the bridge deck according to claim 5 is characterized in that: The permanent filling body is configured as a foamed concrete filling body.

7. The staggered support structure of the retaining wall and the bridge deck according to claim 6 is characterized in that: The bridge deck substrate is provided with a first connecting rib extending into the upper section of the filling gap, and the retaining wall is provided with a second connecting rib extending into the upper section of the filling gap, the first connecting rib and the second connecting rib are arranged separately, and the foamed concrete filling body is cast connected to the first connecting rib and the second connecting rib.

8. The staggered support structure of the retaining wall and the bridge deck according to claim 6, characterized in that: The support structure further comprises a structural tube arranged in the permanent filling body, and the sealing strip is provided with a through hole at a position corresponding to the structural tube; The support structure also includes a drain pipe, which can pass through the through hole in a sealed manner and then pass through the structural pipe. The upper section of the drain pipe is formed with a filter section, which is water-permeable so that the filter section can drain water to the outside through the inner side of the drain pipe.

9. A construction process for a staggered support structure of a retaining wall and a bridge deck, characterized in that: include: S1. Build a retaining wall and process a support platform at the position of the retaining wall corresponding to the bridge deck base plate; S2, constructing a bridge deck base plate so that a filling gap is formed between the bridge deck base plate and the retaining wall; S3, pre-fixing a permanent filling body in the upper section of the filling gap; S4, providing a plurality of support plates, wherein the plurality of support plates are arranged between the bridge deck substrate and the retaining wall at intervals along the extension direction of the bridge deck substrate, and one end of the support plate is placed on the support platform, and the other end is placed on the bridge deck substrate; S5. Provide a cover plate, the cover plate comprising a plug plate body that can be inserted between two adjacent support plates, and a cover plate body disposed on top of the plug plate body, wherein the cover plate body can overlap the two adjacent support plates; S6. Fix the sealing strip at the lower section of the filling gap; S7. Fill the bridge deck base and the upper side of the retaining wall with crushed stone soil.

10. The construction process of the staggered support structure of the retaining wall and the bridge deck according to claim 9, characterized in that: S3 includes S31, presetting an inner structure tube at the position of the permanent filling body, wherein a filling column is inserted into the inner side of the inner structure tube; S32, forming a permanent filling body at the position of the permanent filling body by forming foamed concrete, and pulling out the filling column; S6 includes: S61, processing a mounting hole at a position of the sealing strip corresponding to the inner structure pipe; S62. Provide a drain pipe that can be sealed and installed in the installation hole, wherein the upper section of the drain pipe is formed with a filter section, and the filter section can drain water outward through the inner side of the drain pipe, and fix the sealing strip to the lower section of the filling gap so that the filter section can at least partially extend out of the inner structural tube.

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