Settlement and leakage prevention structure for deformation joint of channel bottom plate of slab culvert of low-embankment road
By designing a structure including cover plate, bottom plate, deformation joint, water stop belt, waterproof layer, steel bar and rubber pad, the problem of uneven settlement and leakage of deformation joint of the culvert passage of the low-income highway cover plate is solved, and the problem of uneven settlement and leakage of the deformation joint of the culvert passage of the low-income highway cover plate is realized. Reduce settlement and prevent leakage.
Patent Information
- Application Number
- CN202420919848.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The deformation joints of the bottom plate of the low-incline highway cover culvert channel have problems that are difficult to effectively solve in terms of uneven settlement and leakage, which affect the normal use and engineering life of the channel.
A structure including cover plate, bottom plate, deformation joint, water stop belt, waterproof layer, L-shaped steel bar, rectangular steel bar and rubber pad was designed. By reasonably strengthening the deformation joint and extending the seepage path, it reduces uneven settlement and prevents seepage. leak.
It effectively reduces uneven settlement at the deformation joints, prevents leakage, and extends the service life of the cover culvert channel.
Smart Images
Figure CN222513126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction of bottom plates of culvert channels, in particular to a deformation joint anti-settlement and anti-leakage structure of bottom plates of culvert channels of low embankment highways. Background Art
[0002] The continuous acceleration of urbanization has greatly improved people's living standards. Motor vehicles have become a common means of transportation for people to travel, and intercity highways have developed accordingly. Intercity highways pass through many villages and towns. In order to ensure that the construction of intercity highways does not affect the normal travel of villages and towns, it is necessary to increase the passageway in combination with the corresponding topography, geology and road conditions. The cover culvert channel has the advantages of short construction period and good adaptability to low embankment roads, and is widely used in highway construction.
[0003] As an underground structure, the cover culvert channel has high requirements for uneven settlement and leakage in order to ensure the safe and normal operation of the cover culvert channel and the intercity highway above it. The deformation joint is the main part of the cover culvert channel bottom plate where uneven settlement occurs. The bottom plate deformation joint is not only damaged by the water accumulation in the cover culvert channel and the external water pressure, but also by the dynamic load of passing vehicles and pedestrians. The uneven settlement and leakage not only directly affect the normal use of the cover culvert channel and the life of the project, but also cause cracks in the intercity highway pavement above the cover culvert. The bottom plate deformation joint is the lowest hidden project and is irreversible. After uneven settlement and leakage, it is difficult to dig the road to repair or repair the deformation joint. Summary of the invention
[0004] In view of the above-mentioned prior art, the utility model proposes a low embankment highway cover culvert channel bottom plate deformation joint anti-settlement and leakage structure.
[0005] The utility model provides a low embankment highway cover culvert channel bottom plate deformation joint anti-settlement and leakage structure, comprising a cover plate, a bottom plate is arranged below the cover plate, a channel is formed between the cover plate and the bottom plate; a deformation joint is arranged on the bottom plate, a water stop is arranged on the deformation joint; a waterproof layer is arranged at the lower end of the bottom plate, and the bottom plate is connected to the waterproof layer in a socket connection.
[0006] Preferably, a protrusion is provided at the lower end of the bottom plate below the deformation joint, a groove is provided at the top of the waterproof layer, and the protrusion is connected to the groove in a socket manner.
[0007] Preferably, an L-shaped steel bar is provided inside the bottom plate on one side of the deformation joint, the L-shaped steel bar extends to the inside of the protrusion, and a rectangular steel bar is provided inside the bottom plate on the other side of the deformation joint.
[0008] Preferably, a rubber pad is provided inside the bottom plate between the bottom of the deformation joint and the top of the protrusion.
[0009] Preferably, a polyethylene foam filling plate is provided inside the deformation joint.
[0010] Preferably, a two-component polysulfide sealant is provided on the inner top of the deformation joint.
[0011] Preferably, the waterproof layer includes a concrete protective layer, a waterproof additional layer, a waterproof membrane layer and a concrete cushion layer arranged from top to bottom.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a low embankment highway cover culvert channel bottom plate deformation joint anti-settlement and leakage structure, by reasonably reinforcing the deformation joint and lengthening the seepage path, it is possible to reduce uneven settlement at the deformation joint and prevent leakage at the deformation joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 , 2 It is a structural schematic diagram of the anti-settlement and leakage structure of the deformation joint of the bottom plate of the low embankment highway cover culvert channel in the embodiment of the utility model.
[0014] In the figure: 1. cover plate; 2. bottom plate; 3. channel; 4. water stop; 5. polyethylene foam caulking plate; 6. two-component polysulfide sealant; 7. concrete protective layer; 8. waterproof additional layer; 9. waterproof membrane layer; 10. concrete cushion layer; 11. protrusion; 12. L-shaped steel bar; 13. rectangular steel bar; 14. rubber pad. DETAILED DESCRIPTION
[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.
[0016] Example: Figure 1 , 2 The present invention shows a structure for preventing subsidence and leakage of deformation joints of a low embankment highway cover culvert channel bottom plate, comprising a cover plate 1, a bottom plate 2 is arranged below the cover plate 1, and a channel 3 is formed between the cover plate 1 and the bottom plate 2. A deformation joint is arranged on the bottom plate 2, and a water stop strip 4 is arranged on the deformation joint. The water stop strip 4 adopts a 350mm wide rubber water stop strip with a steel edge. A 20mm thick polyethylene foam caulking plate 5 is arranged inside the deformation joint, and the deformation joint is capped with a two-component polysulfide sealant 6.
[0017] Furthermore, a waterproof layer is provided at the lower end of the bottom plate 2, and the waterproof layer includes a 50 mm thick C20 concrete protective layer 7, a waterproof additional layer 8, a waterproof roll layer 9 and a 150 mm thick C20 concrete cushion layer 10 arranged from top to bottom, and the waterproof roll layer 9 adopts a 1.5 mm thick pre-laid polymer waterproof roll R type. A protrusion 11 is provided at the lower end of the bottom plate 2 below the deformation joint, and a groove is provided on the top of the waterproof layer, and the protrusion 11 is connected to the groove by a socket connection.
[0018] Furthermore, an L-shaped steel bar 12 is provided inside the bottom plate 2 on one side of the deformation joint, and the L-shaped steel bar 12 extends to the inside of the protrusion 11. A rectangular steel bar 13 is provided inside the bottom plate 2 on the other side of the deformation joint. A rubber pad 14 with a thickness of 5 mm and a width of 180 mm is provided inside the bottom plate 2 between the bottom of the deformation joint and the top of the protrusion 11. The rubber pad 14 can not only alleviate the impact force of the dynamic load of the vehicle at the deformation joint position to a limited extent, but also enhance the anti-water seepage performance there.
[0019] When the structure is actually applied, the waterproof layer is constructed first. Before the inner corner of the waterproof layer is constructed, a 30*30mm obtuse angle is made by using cement waterproof mortar. The L-shaped steel bars 12 and rectangular steel bars 13 are installed synchronously with the bottom plate steel bars according to the thickness of the bottom plate of each section of the cover culvert channel in the drawings and the actual on-site re-drawing and processing, and are tied firmly. The position conflict with the bottom plate steel bars is adjusted according to the actual on-site situation. The length of the L-shaped steel bar 12 anchored into the bottom plate is not less than 37d (d is the diameter of the steel bar). The rubber pad 14 is fixed on the concrete protective layer 7 by rivets, and the rivet spacing is 200mm. The paving surface is required to be flat and clean. The two-component polysulfide sealant 6 is uniformly constructed after the overall construction of the cover culvert channel is completed. The end face of the deformation joint should be flat, solid and straight. The polyethylene foam caulking board 5 is filled 4cm below the top of the bottom plate. Before the construction of the two-component polysulfide sealant 6, the seam should be cleaned and kept dry without debris and water accumulation.
[0020] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.
Claims
1. A low embankment highway cover culvert channel bottom plate deformation joint anti-settlement and leakage structure, characterized in that: It comprises a cover plate, a bottom plate is arranged below the cover plate, a channel is formed between the cover plate and the bottom plate; a deformation joint is arranged on the bottom plate, a water stop strip is arranged on the deformation joint; a waterproof layer is arranged at the lower end of the bottom plate, and the bottom plate is connected to the waterproof layer in a socket connection.
2. The anti-settlement and anti-leakage structure of the bottom plate deformation joint of the low embankment highway cover culvert channel according to claim 1 is characterized in that: A protrusion is arranged at the lower end of the bottom plate below the deformation joint, a groove is arranged at the top of the waterproof layer, and the protrusion is connected to the groove in a socket manner.
3. The anti-settlement and anti-leakage structure of the bottom plate deformation joint of the low embankment highway cover culvert channel according to claim 2 is characterized in that: An L-shaped steel bar is arranged inside the bottom plate on one side of the deformation joint, and the L-shaped steel bar extends to the inside of the protrusion. A rectangular steel bar is arranged inside the bottom plate on the other side of the deformation joint.
4. The anti-settlement and anti-leakage structure for deformation joints of the bottom plate of the low embankment highway cover culvert channel according to claim 2 or 3, characterized in that: A rubber pad is arranged inside the bottom plate between the bottom of the deformation joint and the top of the protrusion.
5. The anti-settlement and anti-leakage structure for deformation joints of the bottom plate of the low embankment highway cover culvert channel according to any one of claims 1 to 3, characterized in that: A polyethylene foam filling plate is arranged inside the deformation joint.
6. The anti-settlement and anti-leakage structure for deformation joints of the bottom plate of the low embankment highway cover culvert channel according to any one of claims 1 to 3, characterized in that: A two-component polysulfide sealant is arranged on the inner top of the deformation joint.
7. The anti-settlement and anti-leakage structure for deformation joints of the bottom plate of the low embankment highway cover culvert channel according to any one of claims 1 to 3, characterized in that: The waterproof layer comprises a concrete protective layer, a waterproof additional layer, a waterproof roll material layer and a concrete cushion layer which are arranged from top to bottom.