Triple anchoring type asphalt pavement pit slot repairing structure

Abstract

The utility model provides a triple anchoring type asphalt pavement pit slot repairing structure, belongs to the technical field of constructional engineering, and aims to solve the problems that a pit slot repairing interface is easy to crack and continues to be developed into a new pit slot in an existing pit slot repairing method. Comprising an original pavement structure, a cement concrete base layer, pit slot filling concrete, an asphalt lower surface layer, an asphalt surface layer, a filling stabilizing mechanism and a filling sealing mechanism, the cement concrete base layer is fixedly connected to the upper end surface of the original pavement structure; the pit slot of the cement concrete base layer is filled with the pit slot filling concrete; the asphalt lower surface layer is fixedly connected to the interior of the cement concrete base layer; the asphalt surface layer is fixedly connected to the upper end surface of the asphalt lower surface layer; the filling stabilizing mechanism is arranged in the cement concrete base layer; and the filling and sealing mechanism is arranged in the asphalt lower surface layer. The interface anti-cracking capacity is improved through the filling stabilizing mechanism, and the service life of the pit slot repairing material is prolonged through the filling sealing mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and more specifically relates to a triple-anchored asphalt pavement pothole repair structure. Background Art

[0002] With the improvement of social and economic levels, my country's traffic volume is also increasing. Under the dual effects of repeated traffic loads and the external climate environment, the diseases of asphalt pavements are becoming increasingly prominent. Potholes are one of the main diseases. Due to the existence of potholes, surface water on the road can seep down, which will reduce the bearing capacity of the highway and affect the overall stability and durability of the highway. In addition, potholes will also directly affect the flatness of the road surface, reduce the service level of the road surface, and even endanger the driving safety of drivers. It is necessary to use pothole repair structures to repair potholes to ensure the normal use of the road surface.

[0003] According to CN202223353288.X, the utility model discloses an asphalt pavement pothole repair structure, which relates to the technical field of asphalt pavement pothole repair, including an asphalt pavement and a pothole inside the asphalt pavement, wherein a fixing rod is fixedly provided inside the asphalt pavement, and a plurality of connecting pieces are evenly fixedly provided on the top of the outer side of the fixing rod. The utility model inserts the fixing rod into the asphalt through an external tool, and simultaneously inserts the lower half of the plurality of connecting pieces evenly fixed on the outer side of the fixing rod into the asphalt pavement, and then pours asphalt into the pothole, so that the new asphalt covers the fixing rod and the upper half of the plurality of connecting pieces. After the new asphalt solidifies, an asphalt patch is formed, so that under the action of the plurality of connecting pieces, the asphalt patch and the asphalt pavement are more tightly connected, effectively avoiding the phenomenon of the asphalt patch becoming loose or even detached during later use, thereby increasing the service life of the asphalt patch.

[0004] Based on the above, existing pothole repair methods mainly include hot patching and cold patching. The repair processes of the two are similar. When repairing potholes, the pothole repair interface is first excavated, the diseased surface layer is chiseled out, the pothole is cleaned, the interface agent is applied, and the mixture is backfilled and compacted. However, after the existing repair methods are completed and the road is open to traffic for a period of time, the pothole repair interface or bottom surface is prone to cracking under the action of vehicle loads, and the repair material falls off, and then continues to develop into a new pothole, affecting the use of the road. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a triple-anchored asphalt pavement pothole repair structure to solve the problem that the existing pothole repair methods mainly include hot patching and cold patching. The repair processes of the two are similar. When repairing potholes, the pothole repair interface is first excavated, the diseased surface layer is chiseled out, the pothole is cleaned, the interface agent is applied, and the mixture is backfilled and rolled. However, after the existing repair method is completed and the traffic is opened for a period of time, under the action of vehicle load, the pothole repair interface or bottom surface is prone to cracking, the repair material falls off, and then continues to develop into a new pothole, affecting the use of the road.

[0006] The purpose and efficacy of the triple-anchor asphalt pavement pothole repair structure of this utility model are achieved by the following specific technical means:

[0007] A triple-anchored asphalt pavement pothole repair structure comprises an original pavement structure, a cement concrete base layer, pothole filling concrete, an asphalt lower layer, an asphalt surface layer, a filling stabilization mechanism and a filling sealing mechanism; the cement concrete base layer is fixedly connected to the upper end face of the original pavement structure, a rectangular pothole is provided in the middle of the upper end face of the cement concrete base layer, and the internal interface of the pothole needs to be coated with an interface agent; the pothole filling concrete is filled in the pothole in the middle of the cement concrete base layer, the pothole filling concrete is C40 cement concrete, and the flexural tensile strength is not less than 4.5 MPa; the asphalt lower layer is fixedly connected to the cement concrete base layer and the pothole filling concrete; the asphalt surface layer is fixedly connected to the upper end face of the asphalt lower layer; the filling stabilization mechanism is provided in the cement concrete base layer; the filling sealing mechanism is provided in the asphalt lower layer.

[0008] Furthermore, the filling and stabilizing mechanism includes: side wall sockets and side wall steel bars; the side wall sockets are provided in multiple groups, and the multiple groups of side wall sockets are opened inside the inner end surface of the cement concrete base; the side wall steel bars are provided in multiple groups, and the multiple groups of side wall steel bars are respectively plugged and connected inside the side wall sockets, and the gaps between the side wall sockets and the side wall steel bars are filled with hot asphalt, and the pits are filled with concrete to fill the multiple groups of side wall steel bars inside, and the multiple groups of side wall steel bars are HRB400, with a diameter of not less than 25 mm, a length of not less than 700 mm, and a spacing of not less than 400 mm.

[0009] Furthermore, the filling and stabilizing mechanism also includes: bottom sockets and bottom steel bars; there are multiple groups of bottom sockets, and the multiple groups of bottom sockets are respectively opened on the upper end surface of the original pavement structure; there are multiple groups of bottom steel bars, and the multiple groups of bottom steel bars are respectively plugged and connected inside the multiple groups of bottom sockets, and the gaps between the bottom sockets and the bottom steel bars are filled with hot asphalt, and the multiple groups of bottom steel bars are HRB400, with a diameter of not less than 25 mm, a length of not less than 700 mm, and a spacing of not less than 400 mm.

[0010] Furthermore, the filling stabilization mechanism also includes: a convenient plug-in inclined surface; the convenient plug-in inclined surface is provided in multiple groups, and the multiple groups of convenient plug-in inclined surfaces are opened on the outer end surfaces of multiple groups of side wall steel bars and multiple groups of bottom steel bars, and the multiple groups of convenient plug-in inclined surfaces are respectively conical structures.

[0011] Furthermore, the filling and sealing mechanism includes: a cement concrete base layer, an asphalt lower layer and an asphalt surface layer arranged in an outward-expanding stepped manner, and the number of steps is consistent with the number of layers of the existing road surface. The width of each outward-expanding step between the cement concrete base layer and the asphalt lower layer is not less than 300 mm; the width of each outward-expanding step between the asphalt lower layer and the asphalt surface layer is not less than 300 mm.

[0012] Furthermore, the filling and sealing mechanism also includes: stabilizing sockets and stabilizing expansion bolts; there are multiple groups of stabilizing sockets, and the multiple groups of stabilizing sockets are respectively opened on the upper side of the cement concrete base layer and inside the asphalt lower layer; there are multiple groups of stabilizing expansion bolts, and the multiple groups of stabilizing expansion bolts are respectively fixedly connected inside the multiple groups of stabilizing sockets, and the stabilizing sockets and stabilizing expansion bolts are intermittently filled with hot asphalt, and the specifications of the multiple groups of stabilizing expansion bolts are not less than M16, and the length is not less than 100mm.

[0013] Furthermore, the filling and sealing mechanism also includes: through-holes and through-expansion bolts; there are multiple groups of through-holes, and the multiple groups of through-holes are respectively opened on the upper side of the cement concrete base, inside the asphalt lower layer and the asphalt surface layer; there are multiple groups of through-expansion bolts, and the multiple groups of through-expansion bolts are respectively opened inside the multiple groups of through-holes, and the through-holes and through-expansion bolts are intermittently filled with hot asphalt. The specifications of the multiple groups of through-expansion bolts are not less than M16, and the length is not less than 100mm. The through-expansion bolts need to penetrate the asphalt surface layer, and the penetration depth into the asphalt lower layer is not less than 50mm. The top of the screw needs to penetrate the inside of the asphalt surface layer by not less than 10mm, and the top hole of the through-expansion bolt is filled with hot asphalt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model adopts a filling stabilization mechanism to realize that when the pit filling concrete is filled in the pit inside the cement concrete base, side wall steel bars and bottom steel bars need to be installed inside the pit. The side wall steel bars and bottom steel bars firmly install the pit filling concrete inside the pit, making the two become one, thereby improving the interface anti-cracking ability, avoiding the problem of gaps between the pit and the filling concrete, and improving the tightness of the pit repair connection.

[0016] The utility model adopts a filling and sealing mechanism to firmly install the asphalt lower layer and the asphalt surface layer on the upper side of the pit by fixing the expansion bolts and penetrating the expansion bolts, thereby enhancing the anti-cracking ability of the joint between the new and old materials, ensuring the quality of the pit repair, avoiding the problem of the pit reappearing after the pit repair has been used for a period of time, and better extending the service life of the pit repair material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the asphalt pavement of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the asphalt pavement section of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the disassembled filling stabilization mechanism of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the side wall reinforcement connection of the utility model.

[0021] Figure 5 It is a schematic structural diagram of a cross-section of the filling and sealing mechanism of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0023] 1. Original pavement structure; 2. Cement concrete base; 3. Pothole filling concrete; 4. Asphalt sublayer; 5. Asphalt surface layer; 6. Side wall sockets; 7. Side wall reinforcement; 8. Bottom sockets; 9. Bottom reinforcement; 10. Convenient insertion slope; 11. Stabilization sockets; 12. Stabilization expansion bolts; 13. Through sockets; 14. Through expansion bolts. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0025] Example 1:

[0026] As attached Figure 1 To the attached Figure 4 As shown:

[0027] The utility model provides a triple-anchored asphalt pavement pothole repair structure, comprising an original pavement structure 1, a cement concrete base layer 2, a pothole filling concrete 3, an asphalt lower layer 4, an asphalt surface layer 5 and a filling stabilization mechanism; the cement concrete base layer 2 is fixedly connected to the upper end face of the original pavement structure 1, a rectangular pothole is provided in the middle position of the upper end face of the cement concrete base layer 2, and the internal interface of the pothole needs to be coated with an interface agent; the pothole filling concrete 3 is filled in the pothole in the middle position of the cement concrete base layer 2, the pothole filling concrete 3 is C40 cement concrete, and the flexural tensile strength is not less than 4.5 MPa; the asphalt lower layer 4 is fixedly connected to the cement concrete base layer 2 and the pothole filling concrete 3; the asphalt surface layer 5 is fixedly connected to the upper end face of the asphalt lower layer 4; and the filling stabilization mechanism is provided inside the cement concrete base layer 2.

[0028] Among them, the filling and stabilizing mechanism includes: side wall sockets 6 and side wall steel bars 7; there are multiple groups of side wall sockets 6, and multiple groups of side wall sockets 6 are opened inside the inner end surface of the cement concrete base 2; there are multiple groups of side wall steel bars 7, and multiple groups of side wall steel bars 7 are respectively inserted and connected inside the side wall sockets 6, and hot asphalt is filled between the side wall sockets 6 and the side wall steel bars 7. The pit filling concrete 3 fills the multiple groups of side wall steel bars 7 inside, and the multiple groups of side wall steel bars 7 are HRB400, with a diameter of not less than 25 mm, a length of not less than 700 mm, and a spacing of not less than 400 mm. During use, when the pit filling concrete 3 has not yet been filled inside the pit of the cement concrete base 2, the side wall steel bars 7 are inserted into the side wall sockets 6.

[0029] Among them, the filling and stabilizing mechanism also includes: bottom sockets 8 and bottom steel bars 9; there are multiple groups of bottom sockets 8, and multiple groups of bottom sockets 8 are respectively opened on the upper end surface of the original pavement structure 1; there are multiple groups of bottom steel bars 9, and multiple groups of bottom steel bars 9 are respectively plugged and connected inside the multiple groups of bottom sockets 8. Hot asphalt is filled between the bottom sockets 8 and the bottom steel bars 9. The multiple groups of bottom steel bars 9 are HRB400, with a diameter of not less than 25mm, a length of not less than 700mm, and a spacing of not less than 400mm. During use, the bottom steel bars 9 are inserted into the bottom sockets 8, and then the pit filling concrete 3 is filled in the pit of the cement concrete base 2. The pit filling concrete 3 fixes the side wall steel bars 7 and the bottom steel bars 9 inside, thereby ensuring the stability of the pit filling concrete 3 inside the pit of the cement concrete base 2.

[0030] Among them, the filling stabilization mechanism also includes: a convenient plug-in slope 10; there are multiple groups of convenient plug-in slopes 10, and multiple groups of convenient plug-in slopes 10 are opened on the outer end faces of multiple groups of side wall steel bars 7 and multiple groups of bottom steel bars 9. The multiple groups of convenient plug-in slopes 10 are respectively conical structures. During use, the movement of the side wall steel bars 7 and the bottom steel bars 9 drives the convenient plug-in slopes 10 to move, and the convenient plug-in slopes 10 move and are inserted into the cement concrete base 2 and the original pavement structure 1.

[0031] The specific usage and function of this embodiment 1 are as follows:

[0032] During use, when the pit filling concrete 3 has not yet been filled in the pit of the cement concrete base 2, the side wall steel bars 7 are inserted into the side wall sockets 6, and the bottom steel bars 9 are inserted into the bottom sockets 8, and then the pit filling concrete 3 is filled in the pit of the cement concrete base 2. The pit filling concrete 3 fixes the side wall steel bars 7 and the bottom steel bars 9 inside, thereby ensuring the stability of the pit filling concrete 3 inside the pit of the cement concrete base 2. The movement of the side wall steel bars 7 and the bottom steel bars 9 drives the movement of the convenient insertion inclined surface 10, and the convenient insertion inclined surface 10 moves and is inserted into the cement concrete base 2 and the original pavement structure 1, so that the pit filling concrete 3 is firmly installed inside the pit of the cement concrete base 2.

[0033] Example 2:

[0034] Based on the first embodiment, as shown in the attached Figure 5 As shown:

[0035] The utility model provides a triple-anchor asphalt pavement pothole repair structure, which also includes a filling and sealing mechanism, which is arranged inside the asphalt lower layer 4. The filling and sealing mechanism includes: a cement concrete base layer 2, an asphalt lower layer 4 and an asphalt surface layer 5, which are arranged in an outward-expanding stepped shape, and the number of steps is consistent with the number of layers of the existing pavement surface. The width of each outward-expanding step between the cement concrete base layer 2 and the asphalt lower layer 4 is not less than 300 mm; the width of each outward-expanding step between the asphalt lower layer 4 and the asphalt surface layer 5 is not less than 300 mm. During use, it is convenient to fix the asphalt lower layer 4 and the asphalt surface layer 5 one by one on the upper end face of the cement concrete base layer 2.

[0036] Among them, the filling and sealing mechanism also includes: stabilizing sockets 11 and stabilizing expansion bolts 12; there are multiple groups of stabilizing sockets 11, and the multiple groups of stabilizing sockets 11 are respectively opened on the upper side of the cement concrete base 2 and inside the asphalt lower layer 4; there are multiple groups of stabilizing expansion bolts 12, and the multiple groups of stabilizing expansion bolts 12 are respectively fixedly connected inside the multiple groups of stabilizing sockets 11, and the stabilizing sockets 11 and the stabilizing expansion bolts 12 are intermittently filled with hot asphalt. The specifications of the multiple groups of stabilizing expansion bolts 12 are not less than M16, and the length is not less than 100mm. During use, the asphalt lower layer 4 is installed on the upper end surface of the cement concrete base 2, and the stabilizing expansion bolts 12 are installed inside the stabilizing sockets 11, so that the asphalt lower layer 4 is firmly installed on the upper end surface of the cement concrete base 2.

[0037] Among them, the filling and sealing mechanism also includes: through-holes 13 and through-expansion bolts 14; there are multiple groups of through-holes 13, and the multiple groups of through-holes 13 are respectively opened on the upper side of the cement concrete base 2, inside the asphalt lower layer 4 and the asphalt surface layer 5; there are multiple groups of through-expansion bolts 14, and the multiple groups of through-expansion bolts 14 are respectively opened inside the multiple groups of through-holes 13. The through-holes 13 and the through-expansion bolts 14 are intermittently filled with hot asphalt. The specifications of the multiple groups of through-expansion bolts 14 are not less than M16, and the length is not less than 100mm. The through-expansion bolts 14 need to penetrate the asphalt surface layer 5, and the penetration depth into the asphalt lower layer 4 is not less than 50mm. The top of the screw needs to penetrate into the asphalt surface layer 5 by not less than 10mm. The top hole of the through-expansion bolt 14 is filled with hot asphalt. During use, the through-expansion bolt 14 is installed inside the through-hole 13, thereby firmly connecting the cement concrete base 2, the asphalt lower layer 4 and the asphalt surface layer 5 together.

[0038] The specific usage and function of the second embodiment are as follows:

[0039] During use, it is convenient to fix the asphalt lower layer 4 and the asphalt surface layer 5 one by one on the upper end face of the cement concrete base 2. The asphalt lower layer 4 is installed on the upper end face of the cement concrete base 2, and the stable expansion bolt 12 is installed inside the stable socket 11, so that the asphalt lower layer 4 is firmly installed on the upper end face of the cement concrete base 2. The through expansion bolt 14 is installed inside the through socket 13, so that the cement concrete base 2, the asphalt lower layer 4 and the asphalt surface layer 5 are firmly connected together to ensure the stability of the pothole repair.

[0040] In this article, there are several points to note:

[0041] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0042] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0043] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A triple-anchored asphalt pavement pothole repair structure, comprising an original pavement structure (1), a cement concrete base layer (2), a pothole filling concrete (3), an asphalt lower layer (4), an asphalt surface layer (5), a filling stabilization mechanism, and a filling sealing mechanism; the cement concrete base layer (2) is fixedly connected to the upper end surface of the original pavement structure (1), a rectangular pothole is provided in the middle of the upper end surface of the cement concrete base layer (2), and an interface agent is applied to the inner interface of the pothole; and the characteristics are: The pit filling concrete (3) is filled in the pit in the middle of the cement concrete base (2), and the pit filling concrete (3) is C40 cement concrete; the asphalt lower layer (4) is fixedly connected to the cement concrete base (2) and the pit filling concrete (3); the asphalt surface layer (5) is fixedly connected to the upper end surface of the asphalt lower layer (4); the filling stabilizing mechanism is arranged in the cement concrete base (2); the filling sealing mechanism is arranged in the asphalt lower layer (4); the filling stabilizing mechanism includes: a side wall jack (6) and a side wall steel bar (7); the side wall sockets (6) are provided with a plurality of groups, and the plurality of side wall sockets (6) are opened inside the inner end surface of the cement concrete base (2); the side wall steel bars (7) are provided with a plurality of groups, and the plurality of side wall steel bars (7) are respectively plugged and connected inside the side wall sockets (6); the gaps between the side wall sockets (6) and the side wall steel bars (7) are filled with hot asphalt, and the pits are filled with concrete (3) to fill the plurality of side wall steel bars (7) inside, and the plurality of side wall steel bars (7) are HRB400, with a diameter of not less than 25 mm, a length of not less than 700 mm, and a spacing of not less than 400 mm.

2. The triple-anchor asphalt pavement pothole repair structure according to claim 1, characterized in that: The filling and stabilizing mechanism further comprises: a bottom socket (8) and a bottom steel bar (9); the bottom socket (8) is provided with a plurality of groups, and the plurality of groups of bottom sockets (8) are respectively opened on the upper end surface of the original pavement structure (1); the bottom steel bar (9) is provided with a plurality of groups, and the plurality of groups of bottom steel bars (9) are respectively plugged and connected inside the plurality of groups of bottom sockets (8), and the gap between the bottom socket (8) and the bottom steel bar (9) is filled with hot asphalt, and the plurality of groups of bottom steel bars (9) are HRB400, with a diameter of not less than 25 mm, a length of not less than 700 mm, and a spacing of not less than 400 mm.

3. The triple-anchor asphalt pavement pothole repair structure according to claim 2, characterized in that: The filling stabilization mechanism further comprises: a convenient insertion inclined surface (10); a plurality of convenient insertion inclined surfaces (10) are provided, and the plurality of convenient insertion inclined surfaces (10) are opened on the outer end surfaces of the plurality of side wall steel bars (7) and the plurality of bottom steel bars (9), and the plurality of convenient insertion inclined surfaces (10) are respectively conical structures.

4. The triple-anchor asphalt pavement pothole repair structure according to claim 1, characterized in that: The filling and sealing mechanism comprises: a cement concrete base layer (2), an asphalt lower layer (4) and an asphalt surface layer (5) arranged in an outward-expanding step shape, and the number of steps is consistent with the number of layers of the existing road surface, and the width of each outward-expanding step between the cement concrete base layer (2) and the asphalt lower layer (4) is not less than 300 mm; and the width of each outward-expanding step between the asphalt lower layer (4) and the asphalt surface layer (5) is not less than 300 mm.

5. The triple-anchor asphalt pavement pothole repair structure according to claim 1, characterized in that: The filling and sealing mechanism further comprises: a stabilizing socket (11) and a stabilizing expansion bolt (12); the stabilizing socket (11) is provided in a plurality of groups, and the plurality of groups of stabilizing sockets (11) are respectively opened on the upper side of the cement concrete base layer (2) and inside the asphalt lower layer (4); the stabilizing expansion bolt (12) is provided in a plurality of groups, and the plurality of groups of stabilizing expansion bolts (12) are respectively fixedly connected inside the plurality of groups of stabilizing sockets (11), and the stabilizing socket (11) and the stabilizing expansion bolt (12) are intermittently filled with hot asphalt, and the specification of the plurality of groups of stabilizing expansion bolts (12) is not less than M16 and the length is not less than 100 mm.

6. The triple-anchor asphalt pavement pothole repair structure according to claim 1, characterized in that: The filling and sealing mechanism further comprises: a through-hole (13) and a through-expansion bolt (14); the through-hole (13) is provided in a plurality of groups, and the plurality of through-holes (13) are respectively opened on the upper side of the cement concrete base (2), inside the asphalt lower layer (4) and the asphalt surface layer (5); the through-expansion bolt (14) is provided in a plurality of groups, and the plurality of through-expansion bolts (14) are respectively opened inside the plurality of through-holes (13); the through-holes (13) and the through-expansion bolts (14) are intermittently filled with hot asphalt; the specification of the plurality of through-expansion bolts (14) is not less than M16, and the length is not less than 100 mm; the through-expansion bolts (14) need to penetrate the asphalt surface layer (5), and the penetration depth of the through-expansion bolts (14) is not less than 50 mm; the top of the screw needs to penetrate the inside of the asphalt surface layer (5) by not less than 10 mm; the top hole of the through-expansion bolt (14) is filled with hot asphalt.

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