Cement concrete runway shoulder anti-freezing structure
By installing water-blocking steel plates and cement sealing layers at the gaps between the concrete shoulder and the pavement, the problem of frost heave damage caused by water seeping into the gaps was solved, and the anti-freezing effect of the concrete structure was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JINGANG ROAD ENGINEERING CONSTRUCTION CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-15
AI Technical Summary
Water easily seeps into and accumulates at the joints between the traditional concrete shoulder and pavement structure, leading to damage to the water-stabilized layer, especially in winter when it is prone to frost heave damage.
Water-blocking steel plates and cement sealing layers are used to seal and plug the gaps, preventing water from seeping into the gaps and preventing water from accumulating and freezing.
It effectively prevents moisture from seeping into the gaps, avoids damage to the concrete structure due to freezing, and improves the structure's antifreeze performance.
Smart Images
Figure CN224243592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete road shoulder technology, specifically to a cement concrete road shoulder antifreeze structure. Background Technology
[0002] In the airfield engineering of civil airport flight area, the cement concrete shoulder structure is connected to the cement concrete pavement structure, and the cement concrete shoulder structure is connected to the soil surface area. It involves the construction of three major professional teams: cement gravel base construction team, cement concrete surface layer construction team, and earthwork engineering team.
[0003] The traditional concrete pavement and shoulder structure is prone to water seepage and accumulation at the joints between the shoulder and pavement structures, which can damage the water-stabilized layer and consequently affect the pavement slab. In particular, water accumulation in winter can easily cause frost heave damage. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cement concrete road shoulder antifreeze structure. By setting a water-blocking steel plate and a cement sealing layer, the upper part of the joint between the cement concrete road shoulder surface layer and the cement concrete road surface layer is sealed and leak-proof by the cement sealing layer. The water-blocking steel plate blocks water that seeps into the gap, preventing water from continuing to flow into the gap, thereby preventing water accumulation from freezing and damaging the concrete structure in winter. This can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cement concrete road shoulder antifreeze structure, comprising a cement concrete surface layer, cement concrete road shoulder surface layers provided on both sides of the cement concrete road surface layer, a water-blocking steel plate provided at the contact position between the cement concrete road surface layer and the cement concrete road shoulder surface layer, and a cement sealing layer provided on the upper part of the contact gap between the cement concrete road surface layer and the cement concrete road shoulder surface layer.
[0006] Furthermore, an asphalt isolation layer is provided under the cement concrete pavement surface layer, and a cement gravel upper base layer is provided under the asphalt isolation layer.
[0007] Furthermore, a cement gravel subbase is provided on the lower side of the cement gravel upper base layer, and a surface isolation layer is provided on the lower side of the cement concrete shoulder surface layer.
[0008] Furthermore, a shoulder cement gravel top base layer is provided on the lower side of the surface isolation layer, and a stone chip isolation layer is provided on the lower side of the shoulder cement gravel top base layer.
[0009] Furthermore, a shoulder cement gravel subbase is provided on the underside of the stone chip isolation layer, and the water-retaining steel plate is fixedly connected to the steel reinforcement frame on the inner side of the cement concrete pavement surface layer.
[0010] Furthermore, the cement sealing layer is cast and connected to the cement concrete shoulder surface layer and the cement concrete pavement surface layer.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model uses a water-blocking steel plate and a cement sealing layer to seal the upper part of the joint between the cement concrete shoulder surface and the cement concrete pavement surface. The water-blocking steel plate blocks water that seeps into the gap, preventing water from continuing to flow into the gap and thus preventing water accumulation from damaging the concrete structure after freezing in winter. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;
[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure of the central water-retaining steel plate.
[0016] In the diagram: 1. Cement concrete pavement surface layer; 2. Asphalt isolation layer; 3. Cement gravel upper base layer; 4. Cement gravel lower base layer; 5. Shoulder cement gravel subbase layer; 6. Shoulder cement gravel top base layer; 7. Stone chip isolation layer; 8. Surface isolation layer; 9. Cement concrete shoulder surface layer; 10. Cement sealing layer; 11. Water-retaining steel plate. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-3 This embodiment provides a technical solution: a cement concrete road shoulder antifreeze structure, including a cement concrete surface layer, cement concrete road shoulder surface layers 9 are provided on both sides of the cement concrete road surface layer 1, a water-blocking steel plate 11 is provided at the contact position between the cement concrete road surface layer 1 and the cement concrete road shoulder surface layer 9, and a cement sealing layer 10 is provided on the upper part of the contact gap between the cement concrete road surface layer 1 and the cement concrete road shoulder surface layer 9.
[0019] like Figure 1-3 As shown, when water from the cement concrete pavement surface layer 1 flows along the drainage slope to the cement concrete shoulder surface layer 9, at the joint between the cement concrete pavement surface layer 1 and the cement concrete shoulder surface layer 9, the cement sealing layer 10 can waterproof and seal the gap, preventing water from seeping downwards along the gap, thus preventing the water that seeps into the gap from freezing and damaging the concrete structure. The water-blocking steel plate 11 can block the seeping water, allowing the water to flow into the surface isolation layer 8 and the shoulder cement gravel top base layer 6 below it, preventing the water from continuing to seep downwards, and ensuring that the cement concrete shoulder surface layer 9 and the cement concrete pavement surface layer 4 structure are not damaged by water freezing.
[0020] An asphalt isolation layer 2 is provided under the cement concrete pavement surface layer 1, and a cement gravel upper base layer 3 is provided under the asphalt isolation layer 2.
[0021] A cement gravel upper base course 3 is provided with a cement gravel lower base course 4 below it, and a surface isolation layer 8 is provided with a cement concrete shoulder surface course 9 below it.
[0022] A shoulder cement gravel top base layer 6 is provided on the underside of the surface isolation layer 8, and a stone chip isolation layer 7 is provided on the underside of the shoulder cement gravel top base layer 6.
[0023] A shoulder cement gravel subbase 5 is provided on the underside of the stone chip isolation layer 7, and the water-retaining steel plate 11 is fixedly connected to the steel reinforcement frame on the inner side of the cement concrete pavement surface layer 1.
[0024] The cement plugging layer 10 is poured and connected to the cement concrete shoulder surface layer 9 and the cement concrete pavement surface layer 1.
[0025] The working principle of the anti-freezing structure for cement concrete road shoulders provided by this utility model is as follows: Figures 1-3 As shown, when water from the cement concrete pavement surface layer 1 flows down the drainage slope onto the cement concrete shoulder surface layer 9, the cement sealing layer 10 at the joint between the cement concrete pavement surface layer 1 and the cement concrete shoulder surface layer 9 can waterproof and seal the gap, preventing water from seeping downwards along the gap, thus preventing the water that seeps into the gap from freezing and damaging the concrete structure. The water-blocking steel plate 11 can block the seeping water, preventing it from continuing to seep downwards, ensuring that the structures of the cement concrete shoulder surface layer 9 and the cement concrete pavement surface layer 4 are not damaged by water freezing.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A cement concrete pavement shoulder anti-freezing structure, comprising a cement concrete pavement surface layer, characterized in that: Cement concrete shoulder layers are provided on both sides of the cement concrete pavement surface layer. Water-retaining steel plates are provided at the contact positions between the cement concrete pavement surface layer and the cement concrete shoulder layer. A cement sealing layer is provided on the upper part of the contact gap between the cement concrete pavement surface layer and the cement concrete shoulder layer.
2. The cement concrete shoulder anti-freezing structure according to claim 1, characterized in that: An asphalt isolation layer is provided under the surface layer of the cement concrete pavement, and a cement gravel upper base layer is provided under the asphalt isolation layer.
3. The anti-freezing structure for cement concrete road shoulders according to claim 2, characterized in that: A cement gravel subbase is provided on the underside of the cement gravel upper base layer, and a surface isolation layer is provided on the underside of the cement concrete shoulder surface layer.
4. The cement concrete shoulder anti-freezing structure according to claim 3, characterized in that: A shoulder cement gravel top base layer is provided below the surface isolation layer, and a stone chip isolation layer is provided below the shoulder cement gravel top base layer.
5. The cement concrete shoulder anti-freezing structure according to claim 4, characterized in that: A cement gravel subbase with a shoulder is provided on the underside of the stone chip isolation layer, and the water-retaining steel plate is fixedly connected to the steel reinforcement frame on the inner side of the cement concrete pavement surface layer.
6. The anti-freezing structure for cement concrete road shoulders according to claim 1, characterized in that: The cement plugging layer is poured and connected to the cement concrete shoulder surface layer and the cement concrete pavement surface layer.