Combined connection structure at road paving connection and construction method thereof

Abstract

The present invention relates to the technical field of road paving engineering, and in particular to a combined connection structure at a road paving connection and a construction method thereof, so as to solve the technical problem in the prior art that a road paving connection with a structural foundation is structurally prone to deformation damage of a road structure due to waterproofing measures. The present technical solution realizes the support of a main paved elastic expansion joint module through the configuration of a paving structure unit, a telescopic structure unit, a telescopic displacement unit and a paving support structure unit, and releases the longitudinal shear force generated by a vehicle through the displacement of the telescopic structure unit to both sides, so that an effective combination is formed between the road paving waterproofing measures and the expansion joint at the road connection, and the telescopic structure unit and the telescopic displacement unit are distinguished from the modular support expansion joint structure in the prior art, so that the overall mass at the paving position of the expansion joint is lighter, and the waterproofness and shear resistance are improved.

Description

Technical Field

[0001] The invention relates to the technical field of road paving engineering, and in particular to a combined connection structure at a road paving connection point and a construction method thereof. Background Art

[0002] In the current method, in the paving project of the pavement structure, water stabilization and waterproofing are the key links in the paving. For ordinary road construction, the waterproofing project of the pavement layer can basically be improved through the application of new materials, so that the service life and safety are increased. However, for roads, elevated roads or bridge roads that need to be arranged on a certain height foundation, in addition to the road structure, it also includes the paving project that provides the foundation for the road support;

[0003] In the prior art, a Chinese invention patent application, publication number: CN111218875A, main classification number: E01C7 / 00, patent name "Asphalt road paving base block, asphalt road structure and construction method thereof", in which the asphalt road paving base block has left and right side surfaces that are cut surfaces inclined toward the middle of the base block, and a groove is provided at the lower part of the cut surface; the front and rear side surfaces of the base block are cut surfaces inclined toward the outer side of the base block; an asphalt road structure is also provided, including a base layer, a water-stabilizing layer and an asphalt surface layer, the water-stabilizing layer is composed of a geogrid and a prefabricated concrete base The invention relates to a method for constructing an asphalt road structure, wherein the base blocks are staggeredly laid on the surface of the geogrid in the X-axis direction, the Y-axis direction and the X-axis direction, expansion joints are arranged between the base blocks, triangular grooves are arranged on the bottom edge of the base blocks, the triangular grooves constitute mesh expansion joints, and the mesh expansion joints are filled with concrete grouting material; a construction method for the above-mentioned asphalt road structure is also provided, after the base layer is completed, a fixed earth grid is laid on the base layer, the base blocks are staggeredly laid on the road in the X-axis direction, the Y-axis direction and the X-axis direction, 3 mm expansion joints are left between adjacent base blocks, concrete grouting material is filled in the mesh expansion joints between the base blocks, and finally the surface layer is constructed.

[0004] The technical problem existing in the prior art is that the current waterproofing measures are basically based on the main structural surface, while for road types based on other auxiliary construction foundations, especially those involving roads with expansion joints, it is necessary to consider the waterproofing of other underlying structures below to prevent moisture from penetrating into the underlying structure below the road to cause damage, specifically referring to road types whose foundations contain a large number of steel structure supports; in addition, the existing design of road joints needs to consider the setting of expansion joints, and the configuration of expansion joints needs to consider not only the waterproofing requirements, but also the strength requirements of the arrangement as a road joint, and with the different widths of the road surface, the overall weight of the arrangement of the road connection structure is too large, making the paving of the elastic waterproof material layer susceptible to the influence of ambient temperature due to its large thermal conductivity, and the vertical seams between the paving boundary and the steel structure curb can allow external contaminated liquids to penetrate along the vertical seams to destroy the bonding layer, causing the steel structure as the foundation support part under the road surface to rust, thereby reducing the service life of the overall road paving structure layer. Summary of the invention

[0005] The present invention aims to solve the technical problem in the prior art that the road paving joint with a structural foundation is structurally prone to deformation damage caused by waterproofing measures, and provides a combined connection structure of the road paving joint and a construction method thereof.

[0006] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0007] A combined connection structure for a road paving joint, forming an expansion joint between concrete structural foundations of the road paving, comprising:

[0008] A paving structure unit is arranged on the concrete structural foundation and the expansion joint, the paving structure unit forms a first paving layer, and the first paving layer includes a main paving elastic member;

[0009] The main paving elastic component is filled in the filling position constructed by the asphalt concrete paving layer, so that the main paving elastic component and the asphalt concrete paving layer have the same first plane;

[0010] A prefabricated paving space is formed between the filling position and the expansion joint, a telescopic structural unit is arranged in the prefabricated paving space, the telescopic structural unit can partially support the main paving elastic member, and the telescopic displacement unit in the telescopic structural unit can form a telescopic displacement on a paving support structural unit and can partially support the main paving elastic member; and a paving surface drainage structure formed on both sides of the paving structural unit;

[0011] The paving surface drainage structure and the paving structure unit form a paving waterproof assembly.

[0012] Furthermore, the main laying elastic component includes:

[0013] A main paving elastic body is filled in a main filling groove formed by the asphalt concrete paving layer;

[0014] Both sides of the main laying elastic body are connected to L-shaped elastic bodies respectively, and the L-shaped elastic bodies are arranged in the first supporting space;

[0015] A second laying support space is formed below the main laying elastic body, and the second laying support space is connected to the first laying support space to form a first support table surface;

[0016] a third laying support space, which is connected to the second laying support space and forms a second support table surface with the second laying support space;

[0017] An expansion joint arrangement space, which is connected to the second laying support space;

[0018] Wherein, the width of the second laying support space is greater than the width of the expansion joint arrangement space;

[0019] The width of the expansion joint arrangement space is greater than the width of the expansion joint.

[0020] Further, the telescopic structural unit has a main supporting member;

[0021] The main support member comprises: a main support base, which is vertically fixedly connected above the expansion joint bottom plate;

[0022] The expansion joint bottom plate is provided with a connecting hole connected to the expansion joint;

[0023] The upper part of the main support base is connected to the beam frame body;

[0024] The two sides of the beam frame body are respectively formed with a first buffer connection structure;

[0025] A top support, which is connected to the top of the beam frame body, and a top support plate is connected to the top of the top support, and the top support plate is used to support the main laying elastic body;

[0026] The width of the top support plate is smaller than the width of the main laying elastic body.

[0027] Furthermore, it also includes:

[0028] A second buffer member connection structure;

[0029] A group of the second buffer member connection structures are respectively arranged on both sides of the beam frame body;

[0030] The second buffer member connection structure comprises:

[0031] A buffer connecting body, which has a buffer connecting groove formed on one side facing the beam body, each of which has a moving side connecting end of a connected buffer embedded in it, and a first embedding card contact point is formed on the moving side connecting end;

[0032] The fixed side connection end of the buffer member is embedded in the fixed side connection groove of the first buffer connection structure, and the fixed side of the buffer member forms a second embedded clamping point in the fixed side connection groove;

[0033] The lower end of the buffer component located outside the fixed side connecting groove forms a continuous bending inclined surface.

[0034] Furthermore, viewed in a cross-sectional direction, the buffer is formed of elastic rubber, the second surface of the buffer has a protruding retaining end, the first surface of the buffer forms a recessed portion, and the recessed portion is configured corresponding to the protruding retaining end.

[0035] Furthermore, a steel support frame structure is fixedly connected to the first support table, and the steel support frame structure includes a plurality of continuously connected I-beams, and a portion of the steel support frame extending out of the first support table maintains a preset vertical height with the second support table, and forms a space for arranging the expansion joint;

[0036] The steel support frame structure located in the expansion joint arrangement space is supported by a plurality of support ribs;

[0037] The plurality of support ribs are arranged horizontally and vertically with preset intervals;

[0038] A plurality of auxiliary support seats are installed above the steel support frame structure, and the auxiliary support seats are arranged at preset intervals to support the main laying elastic body and the L-shaped elastic body;

[0039] A prefabricated plate is arranged between the steel support frame structure and the plurality of auxiliary support seats, a first isolation plate is connected to the side of the prefabricated plate away from the beam frame body and is arranged obliquely toward the L-shaped elastic body, and the second isolation plate is vertically connected to the prefabricated plate;

[0040] Filling blocks are arranged between the L-shaped elastic body and the first isolation plate and the second isolation plate.

[0041] Furthermore, the mobile component comprises:

[0042] The second buffer connection structure is connected to a ladder-shaped clamping plate unit at one side away from the main support, and the ladder-shaped clamping plate unit is composed of two groups of parallelly arranged ladder-shaped clamping plates;

[0043] Each set of trapezoidal clamps is connected to a sliding beam component, and the sliding beam component can extend

[0044] into the telescopic structure arrangement space, and maintaining a preset distance from the side wall of the telescopic structure arrangement space;

[0045] A sliding path is constructed on the sliding beam component;

[0046] Sliding rollers, a plurality of said sliding rollers are arranged in the sliding track;

[0047] Both ends of the slip roller are connected with slip roller rotating seats, and the slip roller rotating seats are fixed below the ends of the suspended beams.

[0048] Furthermore, it also includes a moving guide component;

[0049] The mobile guidance components include:

[0050] A guide assembly fixing portion, which is laid on a side of the expansion joint arrangement space having a side wall and is arranged on a supporting steel plate, with a reserved gap between the supporting steel plate and the expansion joint bottom plate;

[0051] an auxiliary guide fixing portion connected to one side of the guide assembly fixing portion;

[0052] Two groups of guide rods are fixedly connected on the guide assembly fixing part and the auxiliary guide fixing part;

[0053] In a cross-sectional direction, two guide rods are arranged in parallel up and down, and pass through the guide assembly fixing part and are anchored into the main concrete slab layer;

[0054] The second buffer connection structure is formed with a guide extension end in a direction perpendicular to the expansion joint bottom plate;

[0055] A guide hole is provided on the guide extension end;

[0056] The guide rods can be inserted into corresponding guide holes.

[0057] A construction method of a combined connection structure at a road paving connection, using the combined connection structure at a road paving connection, comprises:

[0058] Step S1, forming a paving position at the expansion joint of the concrete foundation and the road, between the concrete foundation, the expansion joint and the asphalt concrete pavement layer;

[0059] The laying position comprises: a main filling slot for the main laying elastic member;

[0060] The second laying support space and the first support space are located on the same layer;

[0061] The third laying support space located below the second laying support space;

[0062] The expansion and expansion joint arrangement space located at the lower layer of the third laying support space;

[0063] Wherein, the asphalt concrete pavement layers on both sides of the main filling groove need to be pre-expanded to the same width as the first supporting space;

[0064] Step S2, paving the expansion joint bottom plate on the expansion joint, arranging the main support base, configuring the telescopic structure unit, the telescopic displacement unit and the paving support structure unit;

[0065] Step S3, arranging a paving structure unit formed by an L-shaped elastic body and the main paving elastic body;

[0066] Step S4, an asphalt concrete paving layer is used for the extended portion of the main filling tank to form an integral whole with the original asphalt concrete paving.

[0067] The present invention has the following beneficial effects:

[0068] The technical solution realizes the support for the main paved elastic expansion joint module through the configuration of the paving structure unit, the telescopic structure unit, the telescopic displacement unit and the paving support structure unit, and the longitudinal shear force generated by the vehicle can be released through the displacement of the telescopic structure unit to both sides, so as to form an effective combination between the road paving waterproof measures and the expansion joints at the road connection, and the telescopic structure unit and the telescopic displacement unit are distinguished from the modular supported expansion joint structure in the prior art, so that the overall mass at the paving position of the expansion joint is lighter, and the waterproofness and shear resistance are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0070] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0071] Figure 2 It is a partial enlarged view of the telescopic structural unit of the present invention;

[0072] Figure 3 It is a partial enlarged view of the pavement support structure unit of the present invention;

[0073] Figure 4 It is a partial enlarged view of the paving surface drainage structure of the present invention;

[0074] Figure 5 It is a schematic diagram of the arrangement of the sliding beam component and the sliding track of the present invention on the second supporting table surface;

[0075] The reference numerals in the figures indicate:

[0076] 1. Concrete structural foundation, 2. Expansion joint, 100. Pavement structural unit, 101. First pavement layer;

[0077] 10. Main paving elastic member, 102. Asphalt concrete pavement, 200. Telescopic structural unit;

[0078] 210. Telescopic displacement unit, 300. Paving support structure unit, 30. Paving surface drainage structure;

[0079] 11. Main laying elastic body, 1022. Main filling slot, 12. L-type elastic body;

[0080] 110. first support space, 120. second laying support space, 130. third laying support space, 111. first support table;

[0081] 222. Second support table, 140. Expansion joint arrangement space;

[0082] 21. Main support base, 22. Expansion joint bottom plate, 23. Beam frame body, 131. First buffer connection structure;

[0083] 24. Top support, 25. Top support plate, 26. Connecting hole;

[0084] 141. Buffer connecting body, 142. Buffer connecting groove, 150. Connecting buffer, 151. First embedded card contact point;

[0085] 132. fixed side connection groove, 152. second embedded card contact point, 153. bending slope, 160. adjustment member connector;

[0086] 161. adjusting screw, 162. abutting cap, 150. buffer, 154. protruding retaining end, 155. recessed portion;

[0087] 31. I-beam, H. preset vertical height, 333. telescopic structure layout space;

[0088] 311. Support rib column, 302. Auxiliary support seat, 322. Prefabricated board, 310. First isolation board;

[0089] 320. second isolation board, 330. prefabricated board, 330. filling block;

[0090] 23. Main support, 51. Trapezoidal clamping plate, 52. Sliding beam component, 502. Sliding track; 53. Sliding roller, 54. Sliding roller rotating seat; 32. Suspended beam end, 41. Guide assembly fixing part;

[0091] 42. Auxiliary guide fixing portion, 410. Guide rod, 420. Guide extension end;

[0092] 441. Guide hole, 61. Concrete foundation auxiliary paving section, 102. Asphalt concrete paving layer, 62. Steel structure cover plate;

[0093] 601. Water channel, 602. Drain pipe, 603. Edge sealing parts, 604. Waterproof membrane layer. DETAILED DESCRIPTION

[0094] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention; it should be noted that in this application, for the convenience of description, the "left side" in the current view is the "first end", the "right side" is the "second end", the "upper side" is the "first end", and the "lower side" is the "second end". The purpose of such description is to clearly express the technical solution, and it should not be understood as an improper limitation on the technical solution of this application.

[0095] The present invention aims to solve the technical problem in the prior art that the joints of the road paving with a structural foundation are prone to deformation and damage of the road structure due to waterproofing measures. Specifically, the technical solution as a flexible pavement layer of the road surface needs to ensure shear resistance, which must withstand the vertical pressure and horizontal shear force generated by the vehicle driving, and must have sufficient shear strength. Please refer to the attached Figure 1 As shown in the figure, the road paving joint combined connection structure forms an expansion joint 2 between the paved concrete structure foundations 1, including:

[0096] A paving structure unit 100 is arranged on the concrete structural foundation 1 and the expansion joint 2. The paving structure unit 100 is a main component of flexible waterproofing and elastic expansion. In this scheme, the paving structure unit 100 is constructed to form a first paving layer 101. The first paving layer 101 includes a main paving elastic component 10. The main paving elastic component 10 is filled in the filling position constructed by the asphalt concrete paving layer 102, so that the main paving elastic component 10 and the asphalt concrete paving layer 102 have the same first plane, forming the main paving surface waterproofing, and playing the role of elastic expansion in the expansion joint; a paving prefabricated space is formed between the filling position and the expansion joint 2, and a telescopic structure unit 200 is arranged in the paving prefabricated space. The telescopic structure unit 200 can It is capable of partially supporting the main laying elastic component 10, and the telescopic displacement unit 210 in the telescopic structure unit 200 can form a telescopic displacement on a paving support structure unit 300, and can partially support the main laying elastic component 10. The purpose of the above technical solution is to combine the modular expansion joint module with the elastic expansion joint module, so that the modular paving expansion joint module plays a supporting role for the elastic paving expansion joint module, and the telescopic structure unit 200 can partially support the main laying elastic component 10, so as to realize the control and buffering of the bearing capacity and the shear force on both sides. In addition, the paving surface drainage structure 30 is formed on both sides of the paving structure unit 100; the paving surface drainage structure 30 and the paving structure unit 100 form a paving waterproof component.

[0097] The technical solution realizes the support for the main paved elastic expansion joint module through the configuration of the paving structure unit 100, the telescopic structure unit 200, the telescopic displacement unit 210 and the paving support structure unit 300, and the longitudinal shear force generated by the vehicle can be released by the displacement of the telescopic structure unit 200 to both sides, so that the road paving waterproof measures and the expansion joints at the road connection are effectively combined, and the telescopic structure unit 200 and the telescopic displacement unit 210 are distinguished from the modular support expansion joint structure in the prior art, so that the overall mass at the paving position of the expansion joint is lighter, and the waterproofness and shear resistance performance are improved.

[0098] In addition, the currently injected elastic waterproof material is arranged in the form of a prefabricated layer structure, which belongs to a seamless expansion joint, mainly including composite paving materials, steel cover plates, and polymer elastic materials; and when the expansion joint is constructed by the waterproof paving layer, the method of laying a modular expansion joint structure must be abandoned, which will result in relying solely on the laid elastic waterproof material layer, and the laying of the structural form of the modular support expansion joint structure in the prior art has a large actual configuration weight, and in the present technical solution, the main laying elastic body 11 is equivalent to the seamless expansion joint in the prior art, but the actual configuration structure is different. In order to further ensure the control in the shear direction, the two sides of the main laying elastic body 11 are respectively connected with L-shaped elastic bodies 12;

[0099] In addition, for the control of low-temperature crack resistance, it specifically refers to the fact that the road pavement layer generally bears mainly compressive stress, but in the road structure with continuous negative bending moment, the waterproof material and the road pavement layer are required to have a certain crack resistance, especially the general waterproof material is brittle under low temperature conditions and is more prone to cracking. Therefore, higher requirements are put forward for the low-temperature crack resistance of the waterproof material. For this reason, the present technical scheme preferably considers the configuration = main laying elastic component 10, including the main laying elastomer 11 and the L-type elastomer 12. The material is composed of the adhesive and the aggregate with uniform particle size in the prior art. This material is the main material of the expansion joint laying elastomer in the prior art. In terms of layout, in order to consider the influence of the waterproof function on the telescopic structure unit 200 arranged in the lower layer, the L-type elastomer 12 is embedded in the lower layer of the asphalt concrete pavement layer 102. Specifically, it includes: the main laying elastomer 11, which is filled in the asphalt concrete pavement layer 102 to form The main filling groove 1022 is provided with an L-shaped elastic body 12 connected to both sides of the main laying elastic body 11, and the L-shaped elastic body 12 is arranged in the first supporting space 110; a second laying supporting space 120 is formed below the main laying elastic body 11, and the second laying supporting space 120 is connected with the first laying supporting space 110, and a first supporting table 111 is formed; a third laying supporting space 130 is connected with the second laying supporting space 120, and a second supporting table 222 is formed between the third laying supporting space 130 and the second laying supporting space 120; an expansion joint arrangement space 140 is connected with the second laying supporting space 120; wherein the width of the second laying supporting space 120 is greater than the width of the expansion joint arrangement space 140; the width of the expansion joint arrangement space 140 is greater than the width of the expansion joint 2; so that the combination of the main laying elastic body 11 and the L-shaped elastic body 12 is mainly used to improve the technical advantages of the telescopic performance and waterproof performance of the laying position;

[0100] In addition, since the expansion and contraction variables generated by the main laying elastic body 11 and the L-shaped elastic body 12 first play an expansion and contraction role under the temperature load and impact load, the expansion and contraction position generated by the concrete structural foundation 1 is greatly buffered, and the main function of the seamless expansion and contraction joint is played. As for the strength and the shear load resistance and the support of the main laying elastic body 11, the expansion and contraction method based on the same principle as the existing modular expansion and contraction joint structural module is adopted, and the specific configuration is to adopt the expansion and contraction structural unit 200, as shown in the attached Figure 2 , 3 As shown in, the telescopic structure unit 200 has a main supporting member; the main supporting member includes: a main supporting base 21, which is vertically fixedly connected above the expansion joint bottom plate 22; a connecting hole 26 connected to the expansion expansion joint 1 is opened on the expansion joint bottom plate 22; the expansion joint bottom plate 22 is used as the main laying component, located above the expansion expansion joint 2, and is directly laid. The preset connecting hole 26 is connected to the expansion expansion joint, which plays a role in draining water vapor and is mainly used to support the main supporting base 21. Such a laying method makes the installation of the telescopic structure unit 200 that plays the role of a modular expansion expansion joint structure in the present technical solution different from the prior art. It provides support for the top support plate 25 for supporting the main laying elastomer 11 by connecting the beam frame body 23 above the main supporting base 21, provides support strength for the main laying elastomer 11, and forms a first buffer connection structure 131 on both sides of the beam frame body 23, thereby realizing the design of a lightweight expansion expansion joint.

[0101] In a specific embodiment, the top-level support 24 is connected to the top of the beam frame body 23, and the top-level support plate 25 is connected to the top of the top-level support 24. The top-level support plate 25 is used to support the main laying elastomer 11; the width of the top-level support plate 25 is smaller than the width of the main laying elastomer 11.

[0102] It should be noted that: it is necessary to configure an expansion joint bottom plate 22, which is arranged above the expansion joint 2 by direct laying, and can be arranged along the width direction of the expansion joint 2 by segmented welding. Its main function is to serve as a supporting foundation, and the technical requirements for its lower surface are: the cleanliness level of the lower surface of the expansion joint bottom plate 22 is Sa2.5, and the roughness of the lower surface of the expansion joint bottom plate 22 is RZ: 60-140μm, that is, the expansion joint bottom plate 22 will move on the concrete structural foundation 1 under the action of cold and hot loads, and the balance of this movement is formed by configuring the second buffer member connection structure and the buffer member 150, which is highly similar to the principle of the modular telescopic structure. Please refer to the attached Figure 2 , 3 As shown in , it also includes: a second buffer member connection structure; a group of second buffer member connection structures are arranged on both sides of the beam frame body 23;

[0103] The second buffer member connection structure includes: a buffer member connection body 141, a buffer member connection groove 142 is formed on a side of the beam frame body 23, a moving side connection end of a buffer member 150 is embedded in each buffer member connection groove 142, and a first embedding clamping point 151 is formed on the moving side connection end; the fixed side connection end of the buffer member 150 is embedded in the fixed side connection groove 132 of the first buffer connection structure 131, and the fixed side of the buffer member 150 forms a second embedding clamping point 152 in the fixed side connection groove 132; the lower end of the buffer member 150 outside the fixed side connection groove 132 forms a continuous bending inclined surface 153;

[0104] An adjustment abutment structure is constructed on both sides of the beam body 23, and its main function is to prevent the buffer 150 from falling off directly under extreme loads; specifically: the adjustment abutment structure includes: an adjustment member connector 160, which is provided with an adjustment member threaded connection hole; an adjustment screw 161 is threaded in the adjustment member connection hole, and the first end of the adjustment screw 161 is connected to an abutment cap 162, and the abutment cap 162 is used to abut on the continuous inclined surface 153, which is equivalent to the adjustment abutment structure being an auxiliary fixing component. In order to ensure that the buffer 150 is effectively fixed, the buffer 150 is formed of elastic rubber, and the second surface of the buffer 150 has a protruding retaining end 154, and the first surface of the buffer 150 forms a recessed portion 155, and the recessed portion 155 is configured corresponding to the protruding retaining end 154.

[0105] In a specific embodiment, please refer to the attached Figure 2 , 3 As shown in , a steel support frame structure 30 is fixedly connected to the first support table 111, and the steel support frame structure 30 includes a plurality of continuously connected I-beams 31. The portion of the steel support frame 30 extending out of the first support table 111 maintains a preset vertical height H with the second support table 222, and forms an expansion joint arrangement space 140; the steel support frame structure 30 located in the expansion joint arrangement space 140 is supported by a plurality of support ribs 311; the plurality of support ribs 311 are arranged horizontally and vertically at preset intervals; a plurality of auxiliary support seats 302 are installed above the steel support frame structure 30, and the auxiliary support seats 302 are arranged at preset intervals to partially support the main laying elastic body 11 and the L-shaped elastic body 12;

[0106] Among them, a prefabricated plate 322 is arranged between the steel support frame structure 30 and multiple auxiliary support seats 321. The prefabricated plate 322 is connected to the first isolation plate 310 on the side away from the beam body 23, and is arranged obliquely toward the L-shaped elastic body 12. The second isolation plate 320 is vertically connected to the prefabricated plate 330; a filling block 330 is arranged between the L-shaped elastic body 12 and the first isolation plate 310 and the second isolation plate 320. The filling block 330 is made of polyurethane block. The second isolation plate 320 and the first isolation plate 310 are coated with waterproof material, so that the overall position is easy to accumulate water vapor to reduce the influence of water vapor, so as to ensure the normal operation of the moving component and improve the durability of the second buffer connection structure, the first buffer connection structure and the buffer member 150; the second isolation plate 320 and the first isolation plate 310 can use waterproof coating or configure a rolled waterproof layer, and the filling block 330 is a polyurethane block, which plays a waterproof role in the lower layer arrangement, mainly for isolating and waterproofing the moving component.

[0107] In the specific configuration, the moving assembly includes: the second buffer connection structure is connected to the ladder-shaped clamping plate unit on the side away from the main support 23, and the ladder-shaped clamping plate unit is composed of two sets of parallel arranged ladder-shaped clamping plates 51, which can be referred to in the attached Figure 5 In the manner described above, the trapezoidal clamping plates 51 are connected by ribs; each set of trapezoidal clamping plates 51 is connected to a sliding beam component 52, and the sliding beam component 52 can extend into the telescopic structure arrangement space 333 and maintain a preset distance from the side wall of the telescopic structure arrangement space 333;

[0108] A sliding track 502 is constructed on the sliding beam component 52; a sliding roller 53, and a plurality of sliding rollers 53 are inserted in the sliding track 502; sliding roller rotating seats 54 are connected to both ends of the sliding roller 53, and the sliding roller rotating seats 54 are fixed below the suspended beam end 32; when displacement occurs under load, the sliding roller 53 slides a distance on the sliding track 502, so that the trapezoidal clamp 51 connected to the buffer component connecting body 141 changes with the expansion and contraction amount caused by the higher intensity load, so that the sliding roller 53 moves on the sliding track 502, and the load is transferred to the plurality of I-beams 31 through the sliding roller 53, so as to achieve shear resistance and stress resistance.

[0109] In order to further stabilize the sliding action of the sliding roller 53 in the above process, please refer to the attached Figure 2 , 3 As shown in the figure, it also includes a movable guide component; the movable guide component includes: a guide component fixing part 41, which is laid on a side of the expansion joint arrangement space 140 having a side wall, and is arranged on a supporting steel plate 44, and a reserved gap 3 is provided between the supporting steel plate 44 and the expansion joint bottom plate 22; an auxiliary guide fixing part 42, which is connected to one side of the guide component fixing part 41; two groups of guide rods 410 are fixedly connected to the guide component fixing part 41 and the auxiliary guide fixing part 42.

[0110] In a cross-sectional view, the two guide rods 410 are arranged in parallel up and down, and pass through the guide assembly fixing portion 41 to be anchored into the main concrete slab layer; the second buffer connection structure is formed with a guide extension end 420 in a direction perpendicular to the expansion joint bottom plate 170;

[0111] A guide hole 441 is formed on the guide extension end 420 ; the guide rod 410 can be inserted into the corresponding guide hole 441 .

[0112] Please see attached Figure 4 As shown in the figure, the paved surface drainage structure 30 also includes: a concrete structural foundation auxiliary paving section 61, which is formed by an integral structure of the concrete structural foundation, and a height difference is formed between the concrete structural foundation auxiliary paving section 61 and the asphalt concrete paving layer 102. A steel structure cover plate 62 is laid above the concrete structural foundation auxiliary paving section 61, so that the steel structure cover plate 62 and the asphalt concrete paving layer 102 are coplanar; the concrete structural foundation auxiliary paving section 61 constructs a water guide trough 601, and the water guide trough 601 is provided with a drainage pipe 602, and a sealing member 603 is provided at the pipe mouth of the drainage pipe 602, and the sealing member 603 covers the adjacent waterproof membrane layer 604.

[0113] It should be noted that in this technical solution, the technical indicators of the waterproof membrane layer configuration are: suitable for environments with temperatures of -45 to 80°C, and the thickness of the membrane waterproof layer is 3 to 4 mm; the membrane waterproof layer should be constructed by hot melt method, and its construction speed is fast. Due to the poor flatness of the paving base surface of some road surfaces, the bonding rate cannot meet the requirements, hollowing is easily formed, and the bonding quality of the overlapping parts is difficult to guarantee, which should be fully paid attention to.

[0114] The waterproofing roll material should be made of antibacterial rubber, plastic, asphalt and other materials. For the cold-coated roll material, the corresponding adhesive should be specified to ensure its bonding strength. When the waterproofing roll material is laid on the base surface of the road concrete structure constructed by integral casting, hollowing of the waterproof layer should be prevented.

[0115] It should be noted that in the present technical solution, the coating waterproofing material is preferably cationic emulsified asphalt chloroprene latex waterproofing, which combines well with the moist base surface, forms a film quickly, is easy to construct, has no pollution to the surrounding environment, and is bonded to the asphalt concrete surface of the concrete base surface and the top surface respectively.

[0116] The construction method of the combined connection structure at the road paving connection comprises: step S1, forming a paving position at the concrete construction foundation 1 and the expansion joint 2 of the road, between the concrete construction foundation 1 and the expansion joint 2 and the asphalt concrete pavement layer 102;

[0117] The laying position includes: the main filling slot 1022 of the main laying elastic member 10;

[0118] The second laying support space 120 and the first support space 110 located on the same layer;

[0119] The third laying support space 130 located below the second laying support space 120;

[0120] The expansion joint arrangement space 140 located at the lower layer of the third laying support space 130;

[0121] The asphalt concrete pavement layer 102 on both sides of the main filling groove 1022 needs to be pre-expanded to the same width as the first supporting space 110;

[0122] Step S2, paving the expansion joint bottom plate 22 on the expansion joint 2, arranging the main support base 21, configuring the telescopic structure unit 200, the telescopic displacement unit 210 and the paving support structure unit 300;

[0123] Step S3, arranging the paving structure unit 100 formed by the L-shaped elastic body 12 and the main paving elastic body 11;

[0124] Step S4: For the extended portion of the main filling groove 1022, an asphalt concrete paving layer 102 is used to form an integral whole with the original asphalt concrete paving.

[0125] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A combined connection structure for road paving joints, wherein an expansion joint (2) is formed between concrete structural foundations (1) of road paving, characterized in that: include: A paving structure unit (100) is arranged on the concrete structural foundation (1) and the expansion joint (2), the paving structure unit (100) forms a first paving layer (101), and the first paving layer (101) includes a main paving elastic component (10); The main paving elastic component (10) is filled in a filling position constructed by the asphalt concrete paving layer (102), so that the main paving elastic component (10) and the asphalt concrete paving layer (102) have the same first plane; A prefabricated paving space is formed between the filling position and the expansion joint (2), a telescopic structure unit (200) is arranged in the prefabricated paving space, the telescopic structure unit (200) is capable of partially supporting the main paving elastic component (10), and a telescopic displacement unit (210) in the telescopic structure unit (200) is capable of forming a telescopic displacement on a paving support structure unit (300) and partially supporting the main paving elastic component (10); and a paving surface drainage structure (30) is formed on both sides of the paving structure unit (100); The paving surface drainage structure (30) and the paving structure unit (100) form a paving waterproof assembly; The main laying elastic component (10) comprises: A main paving elastic body (11) is filled in a main filling groove (1022) formed by the asphalt concrete paving layer (102); L-shaped elastic bodies (12) are respectively connected to both sides of the main laying elastic body (11), and the L-shaped elastic body (12) is arranged in the first supporting space (110); A second laying support space (120) is formed below the main laying elastic body (11), and the second laying support space (120) is connected to the first laying support space (110) to form a first support table surface (111); a third laying support space (130), which is connected to the second laying support space (120) and forms a second support table surface (222) between the third laying support space (130) and the second laying support space (120); an expansion joint arrangement space (140), which is connected to the second laying support space (120); Wherein, the width of the second laying support space (120) is greater than the width of the expansion joint arrangement space (140); The width of the expansion and expansion joint arrangement space (140) is greater than the width of the expansion and expansion joint (2); The telescopic structural unit (200) has a main supporting member; The main support member comprises: a main support base (21) which is vertically fixedly connected above the expansion joint bottom plate (22); The expansion joint bottom plate (22) is provided with a communication hole (26) communicating with the expansion joint (1); The upper part of the main support base (21) is connected to a beam frame body (23); The two sides of the beam frame body (23) are respectively formed with a first buffer connection structure (131); A top support (24) connected to the top of the beam frame body (23); a top support plate (25) connected to the top of the top support (24); the top support plate (25) is used to support the main laying elastic body (11); The width of the top support plate (25) is smaller than the width of the main laying elastic body (11).

2. The road paving joint combined connection structure as claimed in claim 1, characterized in that: Also included are: A second buffer member connection structure; A group of the second buffer member connection structures are respectively arranged on both sides of the beam frame body (23); The second buffer member connection structure comprises: A buffer component connecting body (141) is formed with a buffer component connecting groove (142) on one side facing the beam frame body (23), a movable side connecting end of a connected buffer component (150) is embedded in each of the buffer component connecting grooves (142), and a first embedded card contact point (151) is formed on the movable side connecting end; The fixed side connection end of the buffer component (150) is embedded in the fixed side connection groove (132) of the first buffer connection structure (131), and the fixed side of the buffer component (150) forms a second embedded clamping point (152) in the fixed side connection groove (132); The lower end of the buffer member (150) located outside the fixed side connection groove (132) forms a continuous bending inclined surface (153).

3. The road paving joint combined connection structure as claimed in claim 2, characterized in that: When viewed in a cross-sectional direction, the buffer member (150) is formed of elastic rubber, the second surface of the buffer member (150) has a protruding retaining end (154), the first surface of the buffer member (150) forms a recessed portion (155), and the recessed portion (155) is configured corresponding to the protruding retaining end (154).

4. The road paving joint combined connection structure as claimed in claim 3, characterized in that: A steel support frame structure (30) is fixedly connected to the first support table (111), the steel support frame structure (30) comprising a plurality of continuously connected I-beams (31), a portion of the steel support frame structure (30) extending out of the first support table (111) maintaining a preset vertical height (H) with the second support table (222), and forming the expansion joint arrangement space (140); The steel support frame structure (30) located in the expansion joint arrangement space (140) is supported by a plurality of support ribs (311); The plurality of supporting ribs (311) are arranged horizontally and vertically with preset intervals; A plurality of auxiliary support seats (302) are installed above the steel support frame structure (30), and the auxiliary support seats (302) are arranged at preset intervals to support the main laying elastic body (11) and the L-shaped elastic body (12); A prefabricated plate (322) is arranged between the steel support frame structure (30) and the plurality of auxiliary support seats (321); a first isolation plate (310) is connected to the side of the prefabricated plate (322) away from the beam frame body (23), and is arranged obliquely toward the L-shaped elastic body (12); and a second isolation plate (320) is vertically connected to the prefabricated plate (330); A filling block (330) is arranged between the L-shaped elastic body (12) and the first isolation plate (310) and the second isolation plate (320).

5. The road paving joint combined connection structure as claimed in claim 4, characterized in that: The mobile assembly comprises: The side of the second buffer connection structure away from the main support (23) is connected to a ladder-shaped clamping plate unit, and the ladder-shaped clamping plate unit is composed of two groups of parallelly arranged ladder-shaped clamping plates (51); Each set of the trapezoidal clamping plates (51) is connected to a sliding beam component (52), and the sliding beam component (52) can extend into the telescopic structure arrangement space (333) and maintain a preset distance from the side wall of the telescopic structure arrangement space (333); A sliding path (502) is constructed on the sliding beam component (52); Sliding rollers (53), a plurality of the sliding rollers (53) being arranged in the sliding path (502); Both ends of the slip roller (53) are connected to slip roller rotating seats (54), and the slip roller rotating seats (54) are fixed below the suspended beam end (32).

6. The road paving joint combined connection structure as claimed in claim 5, characterized in that: Also included is a moving guide component; The mobile guidance components include: A guide assembly fixing portion (41) is laid on a side of the expansion joint arrangement space (140) having a side wall and is arranged on a supporting steel plate (44), wherein a reserved gap (3) is provided between the supporting steel plate (44) and the expansion joint bottom plate (22); An auxiliary guide fixing portion (42) connected to one side of the guide assembly fixing portion (41); Two groups of guide rods (410) are fixedly connected to the guide assembly fixing portion (41) and the auxiliary guide fixing portion (42); In a cross-sectional direction, two guide rods (410) are arranged in parallel up and down, and pass through the guide assembly fixing portion (41) to be anchored into the main concrete slab layer; The second buffer connection structure is formed with a guide extension end (420) in a direction perpendicular to the expansion joint bottom plate (170); The guide extension end (420) is provided with a guide hole (441); The guide rod (410) can be inserted into the corresponding guide hole (441).

7. The road paving joint combined connection structure as claimed in claim 6, characterized in that: Also included is a paving surface drainage structure (30) including: A concrete structural foundation auxiliary paving section (61) is formed by an integral structure of the concrete structural foundation, a height difference is formed between the concrete structural foundation auxiliary paving section (61) and the asphalt concrete paving layer (102), and a steel structure cover plate (62) is laid above the concrete structural foundation auxiliary paving section (61) so that the steel structure cover plate (62) and the asphalt concrete paving layer (102) are coplanar; The auxiliary laying section (61) of the concrete structural foundation forms a water channel (601), the water channel (601) is provided with a drainage pipe (602), the pipe mouth of the drainage pipe (602) is provided with a sealing member (603), and the sealing member (603) covers the adjacent waterproof coiled material layer (604).

8. A construction method for a combined connection structure at a road paving connection, characterized in that: Using the road paving joint combined connection structure as claimed in claim 7, the construction method comprises: Step S1, forming a paving position at the expansion joint (2) of the concrete structural foundation (1) and the road, between the concrete structural foundation (1), the expansion joint (2) and the asphalt concrete pavement layer (102); The laying position comprises: a main filling groove (1022) of the main laying elastic member (10); The second laying support space (120) and the first support space (110) are located on the same layer; The third laying support space (130) is located at a lower layer of the second laying support space (120); The expansion joint arrangement space (140) is located at a lower layer of the third laying support space (130); Wherein, the asphalt concrete pavement layers (102) on both sides of the main filling groove (1022) need to be pre-expanded to the same width as the first supporting space (110); Step S2, paving an expansion joint bottom plate (22) on the expansion joint (2), arranging a main support base (21), configuring a telescopic structure unit (200), a telescopic displacement unit (210) and the paving support structure unit (300); Step S3, arranging a paving structure unit (100) formed by an L-shaped elastic body (12) and the main paving elastic body (11); Step S4, using an asphalt concrete paving layer (102) to form an integral whole with the original asphalt concrete paving for the extended portion of the main filling groove (1022).

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