CN210946345U - High polymer grouting semi-rigid base pavement crack reinforcing and repairing system - Google Patents
High polymer grouting semi-rigid base pavement crack reinforcing and repairing system Download PDFInfo
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- CN210946345U CN210946345U CN201921707819.6U CN201921707819U CN210946345U CN 210946345 U CN210946345 U CN 210946345U CN 201921707819 U CN201921707819 U CN 201921707819U CN 210946345 U CN210946345 U CN 210946345U
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Abstract
The utility model relates to a high polymer grouting semi-rigid base pavement crack reinforcing and repairing system, which has the technical scheme that the system comprises a high polymer grouting reinforcing and repairing structure and a cracking bonding repairing structure, wherein the high polymer grouting reinforcing and repairing structure is formed by filling high polymer grouting materials through high-pressure grouting, and the cracking bonding repairing structure is formed by low-pressure grouting of a high-permeability cement-based adhesive; the high polymer grouting reinforcement repair structure is mainly used for filling voids between a reinforced pavement structure cement concrete base layer and an underlayer and voids between the underlayer and a roadbed, and can reinforce the voids between pavement structure layers and discharge accumulated water between the pavement structure layers in the high polymer grouting process; the cracked bonded repair structure is mainly used for filling and bonding a cracked pavement structure cement concrete base layer.
Description
Technical Field
The utility model relates to a bituminous paving crack consolidates and restores high polymer slip casting technical field, concretely relates to semi-rigid basic unit's of high polymer slip casting road surface crack consolidates repair system.
Background
The semi-rigid base asphalt pavement has the advantages of high strength, low cost, good integrity and water stability and the like, and is widely applied to highway construction in China; however, the semi-rigid base layer is easy to generate transverse reflection cracks, roadbed cracking longitudinal cracks, new and old pavement joint seams and the like during operation, and after the cracks are formed, pavement diseases such as pavement void, water accumulation, slurry accumulation and the like are easy to form under the influence of external environments such as temperature, rainwater, heavy vehicle load and the like, so that the formation of the pavement cracks not only influences the attractiveness and driving comfort of the pavement, but also greatly shortens the service life of the pavement.
SUMMERY OF THE UTILITY MODEL
The needle is to semi-rigid basic unit pavement crack disease problem, the utility model provides a high polymer slip casting semi-rigid basic unit pavement crack consolidates repair system to reach and pack to consolidate and restore the structural layer of road surface layer and take off the sky, purposes such as bonding restoration road surface cement concrete base course fracture.
The utility model provides a following technical scheme: the high polymer grouting reinforcement and repair structure comprises a high polymer grouting reinforcement and repair structure positioned between layers of a pavement structure layer and a cracking bonding repair structure of a pavement cement concrete base layer, wherein the high polymer grouting reinforcement and repair structure is formed by high polymer grouting materials through high-pressure grouting filling and grouting, and the cracking bonding repair structure is formed by high-permeability cement-based adhesive low-pressure grouting.
Preferably, high polymer grouting, reinforcing and repairing grouting holes are arranged on two sides of the crack in a crossed mode, a high polymer grouting, reinforcing and repairing grouting pipe is implanted into the high polymer grouting, reinforcing and repairing grouting holes, grouting is conducted between the road surface structural layers through the high polymer grouting, reinforcing and repairing grouting pipe to form a high polymer grouting, reinforcing and repairing structure, the grouting pressure is 5-7 Mpa, and the high polymer grouting material is solidified for 1-3 min.
Preferably, the distance between the high polymer grouting reinforcement and repair grouting holes is 1-1.5 m, the diameter is 15-20 mm, the depth is 50-120 cm, and the distance between the high polymer grouting reinforcement and repair grouting holes and cracks is 25-30 cm.
Preferably, the high polymer grouting, reinforcing and repairing grouting pipe is made of PVC, the diameter of the high polymer grouting, reinforcing and repairing grouting pipe is 15-20 mm, and the length of the high polymer grouting, reinforcing and repairing grouting pipe is 20-30 cm.
Preferably, crack bonding repair grouting holes are arranged right above the cracks along the crack trend, and a crack bonding repair structure is formed by grouting the crack of the pavement through the crack bonding repair grouting holes, wherein the grouting pressure is 0.1MPa, and the setting time of the high-permeability cement-based adhesive is 2 hours.
Preferably, the hole pitch of the crack adhesion repair grouting hole is 100cm, the diameter is 12mm, and the depth is 40 cm.
Preferably, the cracking adhesion repair grouting pipe is implanted into the cracking adhesion repair grouting hole, and a cracking adhesion repair structure is formed by grouting the cracking adhesion repair grouting pipe in a crack of a road surface, wherein the cracking adhesion repair grouting pipe is a metal grouting pipe with the diameter of 10mm and the length of the metal grouting pipe is 5 cm.
Preferably, the high polymer grouting reinforcement and restoration structure is distributed in a void between a cement concrete base layer and an underlayer of a pavement structure and a void between the underlayer and a roadbed, the void is in a horizontal plane and is diffused and distributed around by taking the high polymer grouting reinforcement and restoration grouting hole as a center, and the diffusion radius is 1.5-2 m.
Preferably, the crack adhesion repair structure is distributed along cracks of the pavement vertical to the crack surface of the pavement structure layer cement concrete base layer.
Preferably, the crack is sealed by pouring sealant, so that rainwater is prevented from entering the crack.
According to the scheme, the high polymer grouting material is filled by high-pressure grouting to form a high polymer grouting reinforcement repair structure with a gap between structural layers of the pavement, and the high-permeability cement-based adhesive is grouted at low pressure to form a cracking bonding repair structure of a cement concrete base layer of the pavement; the high polymer grouting reinforcement repair structure is mainly used for filling and reinforcing the void between the cement concrete base layer and the subbase layer of the pavement structure and the void between the subbase layer and the roadbed, and can not only reinforce the void between the pavement structure layers, but also eliminate the accumulated water between the pavement structure layers in the high polymer grouting process; the cracked bonded repair structure is mainly used for filling and bonding a cracked pavement structure cement concrete base layer. The utility model discloses construction convenience is swift, and the construction area is clean and tidy, need not the health preserving after the construction and does not influence the highway and normally pass and have good ageing.
The utility model discloses high polymer slip casting semi-rigid basic unit road surface crack consolidates repair system, the beneficial effect who possesses compared with prior art is:
1. the high polymer grouting material is combined with the cement-based high-permeability adhesive to form a finished pavement crack repairing structure, so that the problem that a pavement crack cannot be completely repaired when a single grouting material is applied is solved, the high polymer grouting material has good fluidity and expansibility, is high in solidification speed, is light and environment-friendly, can be used for filling a roadbed void, reinforcing the roadbed, draining roadbed accumulated water and the like, but does not have good adhesiveness, cannot bond the crack together, and the cement-based high-permeability adhesive can be well combined with a cement concrete base layer, so that the cement concrete base layer crack can be perfectly bonded together;
2. the high polymer grouting semi-rigid base pavement crack reinforcing and repairing system is applied to the treatment of the semi-rigid base pavement crack diseases, the cement grouting is completely used for repairing pavement void, the cement slurry is easy to shrink after being cured and can form new void, when the cement slurry is pressed by a heavy vehicle, a cured cement concrete sheet is easy to crush, the cement slurry repairing structure in a pavement structure layer is completely invalid, and a high polymer foam material formed by the high polymer grouting material has good randomness and is not suitable to be broken, so that the high polymer grouting semi-rigid base pavement crack reinforcing and repairing system has good durability;
3. the high polymer grouting semi-rigid base pavement crack reinforcing and repairing system does not need to be excavated in the whole construction process, fully utilizes the existing resources, avoids the waste of resources, has short construction period, has small interference to traffic, does not need to be maintained, and ensures traffic safety.
Drawings
FIG. 1 is a schematic view of the lateral fracture grouting hole distribution.
FIG. 2 is a schematic diagram showing the distribution of grouting holes of longitudinal cracks and new and old roadbed joint seams.
FIG. 3 is a schematic cross-sectional view of a pavement structure layer void and crack.
FIG. 4 is a schematic view of a polymer grouting for repairing a grouting hole.
FIG. 5 is a schematic view of a polymer grouting reinforcement repair grouting pipe.
FIG. 6 is a schematic view of a high polymer grouting reinforcement repair structure.
FIG. 7 is a schematic view of a crack bond repair configuration.
FIG. 8 is a schematic view of a system for reinforcing and repairing cracks of a pavement with a semi-rigid base layer by high polymer grouting.
In the figure: 1-asphalt surface layer, 2-cement concrete base layer, 3-base layer, 4-roadbed, 5-crack, 5.1-crack adhesive repair structure, 6-crack adhesive repair grouting hole, 7-high polymer grouting reinforcement repair grouting hole, 8-high polymer grouting reinforcement repair grouting pipe, 9-void, and 9.1-high polymer grouting reinforcement repair structure.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention, and in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance throughout the present disclosure, it being understood that unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and can be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
In a first embodiment, as shown in fig. 8, a high polymer grouting semi-rigid base course pavement crack reinforcing and repairing system includes a high polymer grouting reinforcing and repairing structure 9.1 located in a gap 9 between pavement structure layers and a cracking bonding repairing structure 5.1 of a pavement cement concrete base course, where the high polymer grouting reinforcing and repairing structure 9.1 is formed by filling the gap 9 with high polymer grouting material, and the cracking bonding repairing structure 5.1 is formed by low-pressure grouting with high-permeability cement-based adhesive.
As shown in fig. 1 and 2, high polymer grouting, reinforcing and repairing grouting holes 7 are arranged on two sides of the crack 5 in a crossed manner, and a high polymer grouting, reinforcing and repairing grouting pipe 8 is implanted into the high polymer grouting, reinforcing and repairing grouting holes 7.
As shown in fig. 6, a high polymer grouting material is injected into the pavement structure layer through the high polymer grouting reinforcing and repairing grouting pipe 8, the high polymer grouting material fills the gaps 9 between the pavement structure layers, and the high polymer grouting material is rapidly solidified to form the pavement structure layer gap high polymer grouting reinforcing and repairing structure 9.1. The high polymer grouting pressure is 5-7 Mpa, and the solidification time of the high polymer grouting material is 1-3 min. When 9.1 high polymer grouting for reinforcing and repairing the structure is performed during the interlayer separation of the pavement structural layer and 9 high polymer grouting. And in the grouting process, laser elevation monitoring equipment is used for monitoring the grouting process in real time, the road surface is prevented from being lifted, and after grouting is finished, the high polymer grouting reinforcement and repair grouting holes 7 are sealed by using the asphalt cold-patch materials.
As shown in FIG. 4, the pitch of the high polymer grouting, reinforcing and repairing grouting holes 7 is 1-1.5 m, the diameter is 15-20 mm, the depth of the high polymer grouting, reinforcing and repairing grouting holes 7 is determined according to the thickness of the pavement structure layer and is generally 50-120 cm, and the distance between the high polymer grouting, reinforcing and repairing grouting holes 7 and cracks is 25-30 cm.
As shown in FIG. 5, the grouting pipe 8 for grouting, reinforcing and repairing the high polymer is made of PVC, and has a diameter of 15-20 mm and a length of 20-30 cm.
As shown in fig. 1 and 2, crack adhesion repair grout holes 6 are arranged right above the crack 5 along the crack 5.
As shown in figure 7, a crack bonding repair structure 5.1 is formed in a crack 5 of a pavement through a crack bonding repair grouting hole 6 by high-permeability cement-based adhesive through low-pressure grouting, the grouting pressure is 0.1MPa, and the setting time of the high-permeability cement-based adhesive is 2 hours.
Wherein, the hole distance of the cracking bonding repair grouting holes 6 is 100cm, the diameter is 12mm, and the depth is 40 cm.
Wherein, can choose not to use fracture adhesion repair slip casting pipe during fracture adhesion repair structure 5.1 slip casting, if use fracture adhesion repair slip casting pipe, fracture adhesion repair slip casting pipe can adopt the diameter 10mm metal material slip casting pipe, and fracture adhesion repair slip casting pipe length is 5cm, implants fracture adhesion repair slip casting pipe into fracture adhesion repair slip casting hole 6, forms fracture adhesion repair structure 5.1 through fracture adhesion repair slip casting pipe slip casting in the fracture 5 on road surface.
As shown in fig. 3, the high polymer grouting reinforcement repair structure 9.1 is distributed in a void 9 between the pavement structure cement concrete base layer 2 and the subbase layer 3 and a void 9 between the subbase layer 3 and the roadbed 4, the void 9 is in a horizontal plane and is in diffusion distribution around the high polymer grouting reinforcement repair grouting hole 7, and the diffusion radius is 1.5-2 m.
Wherein, the cracking bonding repair structure 5.1 is distributed on the crack extension 5 of the pavement vertical to the cracking surface of the pavement structure layer cement concrete base layer 2.
As shown in fig. 7. After all grouting is finished, sealing the crack 5 by using pouring sealant, and preventing rainwater from entering the crack.
The operation principle is as follows: firstly, arranging high polymer grouting reinforcement and repair grouting holes 7 at two sides of a crack 5 with a void 9 or accumulated slurry, drilling holes at the positions of the high polymer grouting reinforcement and repair grouting holes 7 by using a drilling machine, enabling the drilling depth to reach the top of a roadbed, then installing high polymer grouting reinforcement and repair grouting pipes 8 and grouting heads for high polymer grouting, monitoring in real time by using laser elevation monitoring equipment in the grouting process to avoid the lifting of a pavement, forming a high polymer grouting reinforcement and repair structure at the void 9 positions between pavement structural layers after grouting is completed, removing the grouting heads after all grouting processes are completed, and sealing the high polymer grouting reinforcement and repair grouting holes 7 by using asphalt cold-patch; after the high polymer grouting is finished, arranging cracking bonding repair grouting holes 6 above the cracks 5 along the cracks, then drilling and cleaning the holes, adopting low-pressure grouting to press the cement-based high-permeability adhesive into the cracks 4 of the crack cement concrete base layer to form a cracking bonding repair structure 5.1, and cleaning a construction site after all the working procedures are finished to finish the construction.
The high polymer grouting reinforcement repair structure 9.1 formed by injecting high polymer grouting material at high pressure and the cracking bonding repair structure 5.1 formed by injecting cement-based high-permeability adhesive at low pressure are used for forming a pavement cement concrete base course, so that the high polymer grouting semi-rigid base course pavement crack reinforcement repair system is completely formed.
While the present invention has been particularly shown and described with reference to the preferred embodiments thereof, and many methods and approaches to the practice thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. High polymer slip casting semi-rigid basic unit road surface crack consolidates repair system, its characterized in that: the high polymer grouting reinforcement and repair structure comprises a high polymer grouting reinforcement and repair structure (9.1) positioned between road surface structural layer clearances (9) and a cracking bonding and repair structure (5.1) of a road surface cement concrete base layer, wherein the high polymer grouting reinforcement and repair structure (9.1) is formed by filling the clearances (9) with high polymer grouting materials through high-pressure grouting, and the cracking bonding and repair structure (5.1) is formed by low-pressure grouting with high-permeability cement-based adhesives.
2. The system for reinforcing and repairing cracks on pavement with a semi-rigid base course by polymer grouting according to claim 1, wherein: high polymer grouting, reinforcing and repairing grouting holes (7) are arranged on two sides of the crack (5) in a crossed mode, high polymer grouting, reinforcing and repairing grouting pipes (8) are implanted into the high polymer grouting, reinforcing and repairing grouting holes (7), and high polymer grouting, reinforcing and repairing structures (9.1) are formed by grouting the high polymer grouting, reinforcing and repairing grouting pipes (8) among the layers of the pavement structure.
3. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 2, characterized in that: the distance between the high polymer grouting reinforcement and repair grouting holes (7) is 1-1.5 m, the diameter is 15-20 mm, the depth is 50-120 cm, and the distance between the high polymer grouting reinforcement and repair grouting holes (7) and cracks is 25-30 cm.
4. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 3, characterized in that: the high polymer grouting reinforcement and repair grouting pipe (8) is made of PVC materials, the diameter of the high polymer grouting reinforcement and repair grouting pipe is 15-20 mm, and the length of the high polymer grouting reinforcement and repair grouting pipe is 20-30 cm.
5. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 4, characterized in that: and (3) crack adhesion repair grouting holes (6) are arranged right above the cracks (5) along the trend of the cracks (5), and a crack adhesion repair structure (5.1) is formed by grouting the crack adhesion repair grouting holes (6) in the cracks (5) of the road surface.
6. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 5, characterized in that: the pitch of the cracking bonding repair grouting holes (6) is 100cm, the diameter is 12mm, and the depth is 40 cm.
7. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 6, characterized in that: and implanting the cracking adhesion repair grouting pipe into the cracking adhesion repair grouting hole (6), and grouting in the crack (5) of the road surface through the cracking adhesion repair grouting pipe to form a cracking adhesion repair structure (5.1), wherein the cracking adhesion repair grouting pipe is a metal grouting pipe with the diameter of 10mm, and the length of the cracking adhesion repair grouting pipe is 5 cm.
8. The system for reinforcing and repairing cracks on pavement with high polymer grouting semi-rigid base course according to claim 7, characterized in that: high polymer slip casting is consolidated and is restoreed structure (9.1) and is distributed and take off (9) between pavement structure cement concrete basic unit (2) and subbase (3) and take off (9) between subbase (3) and road bed (4), it uses to take off (9) to be the horizontal plane high polymer slip casting is consolidated and is restoreed slip casting hole (7) to diffusion distribution around as the center, and diffusion radius is 1.5 ~ 2 m.
9. The system for reinforcing and repairing cracks on pavement with a semi-rigid base course by polymer grouting according to claim 1, wherein: the crack bonding repair structure (5.1) is distributed on the crack surface of the pavement structure layer cement concrete base layer (2) and vertical to the extended crack (5) of the pavement.
10. The system for reinforcing and repairing cracks on pavement with a semi-rigid base course by polymer grouting according to claim 1, wherein: and sealing the crack (5) by using pouring sealant.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663468A (en) * | 2020-12-11 | 2021-04-16 | 郑州铁路职业技术学院 | Non-excavation repairing method for frozen soil roadbed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663468A (en) * | 2020-12-11 | 2021-04-16 | 郑州铁路职业技术学院 | Non-excavation repairing method for frozen soil roadbed |
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