CN213203664U - Asphalt pavement settlement disposal structure - Google Patents
Asphalt pavement settlement disposal structure Download PDFInfo
- Publication number
- CN213203664U CN213203664U CN202021716280.3U CN202021716280U CN213203664U CN 213203664 U CN213203664 U CN 213203664U CN 202021716280 U CN202021716280 U CN 202021716280U CN 213203664 U CN213203664 U CN 213203664U
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- Prior art keywords
- road surface
- layer
- pipe
- grouting
- pavement
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- 239000010426 asphalt Substances 0.000 title claims description 27
- 239000010410 layer Substances 0.000 claims abstract description 43
- 239000002344 surface layer Substances 0.000 claims abstract description 30
- 238000007596 consolidation process Methods 0.000 claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000011440 grout Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000011376 self-consolidating concrete Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a bituminous pavement subsidence disposal structure, including bituminous pavement, bituminous pavement includes the ground soil body, embankment, basic unit and the road surface structural layer that set up from bottom to top, be equipped with drainage consolidation hole and strength nature reinforcement hole on bituminous pavement, be provided with strength nature reinforcement pipe that is used for the slip casting to form the slip casting enclosed body and the crowded slip casting pipe that expands that is used for the mud jacking to form the pipeline section crowded body in the drainage consolidation hole, be equipped with the drainage slip casting pipe that is used for the slip casting to form the packing solidified body in the strength nature reinforcement hole; the road surface structure layer is provided with an interface connection step, and a road surface layer is filled in the interface connection step. The utility model discloses not only can promote the joint strength and the structural integrity of pitch restoration structure, can improve construction quality moreover.
Description
Technical Field
The utility model relates to a bituminous paving repairs technical field, concretely relates to bituminous paving sinks and deals with structure.
Background
The settlement is a common early disease of the asphalt pavement, and if the settlement cannot be repaired in time, the disease can be accelerated under the coupling action of traffic load and environmental factors, the service life and the service function of the road are seriously influenced, and even the life safety of drivers and passengers is endangered. At present, a method of additionally laying a structural layer is generally adopted for treating the pavement subsidence in engineering, and although the method can solve the problem of pavement evenness recovery, the bearing capacity and the integrity of a lower supporting structure can be improved by the structure, and the weight of the pavement structure can be increased, so that the service time after the disease treatment is limited.
In the prior art, a method for quickly repairing an asphalt pavement is provided, which comprises the steps of dividing a pavement to be repaired into a plurality of small areas, and preparing a cement concrete paving plate which is slightly smaller in size and is provided with vent holes and reinforcing steel bars according to the size of each small area; digging grooves, cleaning grooves and groove edges, and preparing a new asphalt pavement material; a paving board is placed at the bottom of the tank; paving a waterproof layer on the upper surface of the paved road board, then pouring the prepared new asphalt pavement material into the upper surface of the waterproof layer, and compacting and flattening; and laying an anti-skid layer on the newly laid surface asphalt pavement. According to the method, the thickened cement concrete paving plate is added to the asphalt pavement base layer, so that the structure can be rapidly reinforced, but the interface connection strength and the structural integrity are difficult to effectively improve due to different thermal responses of the cement concrete paving plate and the asphalt mixture.
Disclosure of Invention
The utility model discloses the problem that will solve is: the utility model provides a bituminous paving sinks and deals with structure, not only can promote the joint strength and the structural integrity of pitch restoration structure, can improve construction quality moreover.
The utility model discloses a solve the technical scheme that above-mentioned problem provided and do: a settlement disposal structure for an asphalt pavement comprises the asphalt pavement, wherein the asphalt pavement comprises a foundation soil body, a road embankment, a base layer and a pavement structure layer which are arranged from bottom to top, a drainage consolidation hole and a stiff reinforcement hole are formed in the asphalt pavement, a stiff reinforcement pipe for grouting to form a grouting closed body and a squeezing and expanding grouting pipe for squeezing and expanding a pipe section forming squeezing and expanding body are arranged in the drainage consolidation hole, and a drainage grouting pipe for grouting to form a filling and solidifying body is arranged in the stiff reinforcement hole; the road surface structure layer is provided with an interface connection step, and a road surface layer is filled in the interface connection step.
Preferably, the road surface layer includes a first road surface layer and a second road surface layer which are sequentially arranged.
Preferably, the first pavement layer and the second pavement layer both adopt a dense-graded modified asphalt mixture.
Preferably, a transverse connecting rib is arranged between the first road surface layer and the road surface structure layer.
Preferably, the joint of the first road surface layer and the second road surface layer is filled with an interface reinforcing rib layer.
Preferably, the interface reinforced layer is formed by rolling a steel plate with the thickness of 1mm
Preferably, the squeezing and expanding grouting pipe is inserted into the pipe cavity of the stiffening reinforcing pipe, and a grouting demarcation ring is arranged on the outer side wall of the squeezing and expanding grouting pipe; the grouting boundary ring is formed by cutting a rubber sheet.
Preferably, the top end of the stiff reinforcing pipe is 5-7 cm higher than the top surface of the pavement base.
Preferably, the stiff reinforcing holes are annularly distributed along the bottom of the pavement subsidence area, and the drainage consolidation holes are positioned in the center of the pavement subsidence area.
Compared with the prior art, the utility model has the advantages that:
1. the utility model can greatly improve the performance of the asphalt pavement subsidence area and the roadbed condition and enhance the integrity between the road surface layers by arranging the stiff reinforcing pipes and the drainage consolidation holes at intervals; and simultaneously, the utility model discloses a set up the crowded body that expands of slip casting closing body, pipeline section and pack the solidification body, promoted soil body intensity.
2. The utility model discloses at construction surface upper surface laying first road surface layer and second road surface layer, promoted and connected the wholeness between new and old surface layer.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.
FIG. 1 is a schematic view of the structure of the asphalt pavement settlement treatment of the present invention;
FIG. 2 is a schematic view of the construction of the foundation soil mass treatment of FIG. 1;
fig. 3 is a schematic view of the stiff reinforcing tube structure of fig. 1 and 2.
In the figure: 1-a foundation soil body; 2-a base layer; 3-interfacing steps; 4-a pavement structure layer; 5-an embankment; 6-stiff reinforcing pipe; 7-extruding and expanding a grouting pipe; 8-loose filling; 9-stiff reinforcing holes; 10-drainage consolidation holes; 11-a drainage grouting pipe; 12-grouting closures; 13-pipe section extruding and expanding body; 14-filling the cured body; 15-transverse connecting ribs; 16-a first pavement layer; 17-a second road surface layer; 18-an interfacial ribbed layer; 19-grouting a demarcation ring; 20-slurry overflow hole.
Detailed Description
The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The specific embodiment of the utility model is shown in fig. 1, a bituminous pavement subsidence disposal structure, including bituminous pavement, bituminous pavement includes the ground soil body, embankment, basic unit and the road surface structural layer that set up from bottom to top, be equipped with drainage consolidation hole and strength nature reinforcement hole on the bituminous pavement, be provided with the strength nature reinforcement pipe that is used for the slip casting to form the slip casting enclosed body in the drainage consolidation hole and be used for the crowded slip casting pipe that expands of mud jacking formation pipeline section, wherein, the top of strength nature reinforcement pipe is higher 5 ~ 7cm than the top surface of road surface basic unit, and its cross-section is circular, and the diameter is 100 mm; a drainage grouting pipe for forming a filling solidification body by grouting is arranged in the stiff reinforcing hole; the road surface structure layer is provided with an interface connection step, and a road surface layer is filled in the interface connection step.
Wherein:
the foundation soil body is sandy soil in a middle solid state.
The base course adopts cement stabilized macadam base course, and the thickness is 30 cm.
The width of the interface connecting step is preferably 500mm, and the height is 1/2 of the pavement structure layer.
The pavement structure layer adopts AC20 asphalt concrete.
The stiffened reinforcing pipe is formed by rolling a steel pipe, the diameter of the stiffened reinforcing pipe is 90mm, a grout overflow hole is arranged on the section of the foundation soil body inserted into the ground, and the grout overflow hole is circular and has the diameter of 50 mm.
The loose filling body is made of a gravel material.
The stiffening reinforcing pipe is provided with stiffening reinforcing holes, the cross section of each stiffening reinforcing hole is circular, and the diameter of each stiffening reinforcing hole is 100 mm.
The drainage slip casting pipe adopts a PVC pipe with the inner diameter of 60 mm.
The drainage grouting pipe is provided with drainage consolidation holes, and the aperture of each drainage consolidation hole is 200 mm.
The grouting closure is made of self-compacting concrete with a strength grade of C30.
The grouting material of the pipe section squeezing and expanding body is cement mortar material, and the grouting pressure is 3 MPa.
The filling and curing body adopts self-compacting concrete with the strength grade of C30.
In this embodiment, the road surface layer includes the first road surface layer and the second road surface layer that set gradually, and wherein, the interface connection step divide into two steps, and first road surface layer corresponds the step of stepping on, and the second road surface layer corresponds step of stepping down, and is concrete, the upper end face parallel and level of second road surface and step of stepping down, the upper end face parallel and level of first road surface layer and step of stepping on.
In this embodiment, the first pavement layer and the second pavement layer both adopt a dense-graded modified asphalt mixture.
In this embodiment, be equipped with transverse connection muscle between first road surface layer and the road surface structural layer, transverse connection muscle adopts the screw thread ribbed steel bar that the diameter is 32mm, and length is 10 cm.
In this embodiment, the joint of the first road surface layer and the second road surface layer is filled with an interface reinforcing layer, the interface reinforcing layer is formed by rolling a steel plate with the thickness of 1mm, and a hole for the stiff reinforcing pipe to penetrate is formed in the interface reinforcing layer and is connected with the stiff reinforcing pipe through welding or bolts.
In this embodiment, the squeezing and expanding grouting pipe is inserted into the pipe cavity of the stiffening pipe, and a grouting demarcation ring is arranged on the outer side wall of the squeezing and expanding grouting pipe; the grouting boundary ring is formed by cutting a rubber sheet and is connected with the squeezing and expanding grouting pipe in a sticking way.
In this embodiment, the stiff reinforcing holes are annularly arranged along the bottom of the pavement subsidence area, and the drainage consolidation holes are located at the center of the pavement subsidence area.
During repairing, milling the pavement structure layer 4 in the scope of the pavement subsidence area to form an interface connecting step 3; respectively drilling a stiff reinforcing hole 9 and a drainage consolidation hole 10 from the top surface of the existing base layer 2 into the foundation soil body 1, and annularly arranging the stiff reinforcing holes 9 along the bottom of the pavement subsidence area, so that the drainage consolidation hole 10 is positioned at the center of the pavement subsidence area; respectively inserting the stiffening reinforcing pipe 6 and the squeezing and expanding grouting pipe 7 into the stiffening reinforcing hole 9, filling the loose filling body 8 into the drainage consolidation hole 10, and communicating the loose filling body 8 with the drainage grouting pipe 11, so that the top end of the stiffening reinforcing pipe 6 is hinged with the top surface of the pavement base 2 and is 5-7 cm high; grouting the pipe cavity of the stiffening reinforcement pipe 6 through external grouting equipment to form a grouting closed body 12, then communicating a pumping device with a drainage grouting pipe 11, removing water in the foundation soil body 1 of the subsidence area, grouting the stiffening reinforcement pipe 6 and the foundation soil body 1 through a squeezing grouting pipe 7 to form a pipe section squeezing body 13, and grouting the loose filling body 8 through the drainage grouting pipe 11 to form a filling and curing body 14; and implanting transverse connecting ribs 15 into the free face of the pavement structure layer 4 along the transverse guide holes, then laying a first pavement layer 16 and a second pavement layer 17, and arranging an interface reinforcing rib layer 18 at the joint of the top face of the first pavement layer 16 and the stiff reinforcing pipe 6.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. All changes which come within the scope of the independent claims of the invention are to be embraced within their scope.
Claims (9)
1. The utility model provides a bituminous paving sinks and deals with structure, includes bituminous paving, bituminous paving includes by lower supreme foundation soil body, embankment, basic unit and the road surface structural layer who sets up, its characterized in that: the asphalt pavement is provided with a drainage consolidation hole and a stiff reinforcement hole, the drainage consolidation hole is internally provided with a stiff reinforcement pipe for grouting to form a grouting closing body and an extruding and expanding grouting pipe for grouting to form a pipe section extruding and expanding body, and the stiff reinforcement hole is internally provided with a drainage grouting pipe for grouting to form a filling and solidifying body; the road surface structure layer is provided with an interface connection step, and a road surface layer is filled in the interface connection step.
2. The asphalt pavement subsidence disposal structure of claim 1, wherein: the road surface layer comprises a first road surface layer and a second road surface layer which are arranged in sequence.
3. The asphalt pavement subsidence disposal structure according to claim 2, wherein: the first road surface layer and the second road surface layer both adopt a dense-graded modified asphalt mixture.
4. The asphalt pavement subsidence disposal structure according to claim 2, wherein: and transverse connecting ribs are arranged between the first road surface layer and the road surface structure layer.
5. The asphalt pavement depression disposal structure according to any one of claims 2 to 4, wherein: and an interface reinforcing rib layer is filled at the joint of the first pavement layer and the second pavement layer.
6. The asphalt pavement subsidence disposal structure of claim 5, wherein: the interface reinforced layer is formed by rolling a steel plate with the thickness of 1 mm.
7. The asphalt pavement subsidence disposal structure of claim 1, wherein: the squeezing and expanding grouting pipe is inserted into the pipe cavity of the stiffening pipe, and a grouting demarcation ring is arranged on the outer side wall of the squeezing and expanding grouting pipe; the grouting boundary ring is formed by cutting a rubber sheet.
8. The asphalt pavement subsidence disposal structure of claim 1, wherein: the top end of the stiff reinforcing pipe is 5-7 cm higher than the top surface of the pavement base.
9. The asphalt pavement subsidence disposal structure of claim 1, wherein: the stiff reinforcing holes are annularly distributed along the bottom of the pavement subsidence area, and the drainage consolidation holes are positioned in the center of the pavement subsidence area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716280.3U CN213203664U (en) | 2020-08-17 | 2020-08-17 | Asphalt pavement settlement disposal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716280.3U CN213203664U (en) | 2020-08-17 | 2020-08-17 | Asphalt pavement settlement disposal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213203664U true CN213203664U (en) | 2021-05-14 |
Family
ID=75839562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021716280.3U Expired - Fee Related CN213203664U (en) | 2020-08-17 | 2020-08-17 | Asphalt pavement settlement disposal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213203664U (en) |
-
2020
- 2020-08-17 CN CN202021716280.3U patent/CN213203664U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |