CN115125790A - Crack repairing method for water stabilization base layer in pavement structure - Google Patents
Crack repairing method for water stabilization base layer in pavement structure Download PDFInfo
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- CN115125790A CN115125790A CN202210884887.XA CN202210884887A CN115125790A CN 115125790 A CN115125790 A CN 115125790A CN 202210884887 A CN202210884887 A CN 202210884887A CN 115125790 A CN115125790 A CN 115125790A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
Abstract
The invention relates to a crack repairing method of a cement stabilized base layer in a pavement structure, which comprises the following steps: after the construction of the cement stabilized base layer is completed, providing drilling equipment, and utilizing the drilling equipment to open a plurality of holes on the crack of the cement stabilized base layer at intervals, wherein the holes are distributed at intervals along the length direction of the crack; providing a plugging material, and carrying out drip irrigation on the plugging material in the hole so as to enable the plugging material to penetrate and fill the crack; and providing a self-adhesive anti-cracking paste, and pasting and fixing the self-adhesive anti-cracking paste along the length direction of the crack to seal and cover the crack. Through set up a plurality of hole on the crack to ensure that the plugging material of burette can permeate and closely fill up the crack, avoid having the space that does not fill up, be fixed in crack department through self-adhesive type crack control subsides and carry out the closing cap processing with the crack, thereby play effectual sealed effect to crack department, avoid water infiltration to crack department formation infiltration route.
Description
Technical Field
The invention relates to the technical field of pavement construction, in particular to a crack repairing method for a cement stabilized base layer in a pavement structure.
Background
The pavement structure comprises a cement stabilized base layer and an asphalt surface layer arranged on the cement stabilized base layer, wherein in the cement stabilized base layer construction process, in actual construction, the crack is usually sealed and plugged at the crack in a crack treatment mode, but the crack still has the crack risk under the temperature change in the later period. And the horizontal crack treatment measure of the cement stabilized base layer is not in place, and the horizontal crack treatment measure can be expanded to an asphalt surface layer to finally cause surface layer cracking, or a radial flow channel is provided for the road surface rainwater to infiltrate into the cement stabilized base layer, so that the strength of the roadbed is weakened, and serious quality hidden troubles exist.
Therefore, it is necessary to enhance the water-stable base layer crack treatment.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for repairing a crack of a water-stable base layer in a pavement structure, so as to solve the problem that the crack risk still exists in the mode of sealing and plugging the crack in the prior art.
In order to achieve the purpose, the invention provides a method for repairing a crack of a cement stabilized base layer in a pavement structure, which comprises the following steps:
after the construction of the cement stabilized base layer is completed, providing drilling equipment, and utilizing the drilling equipment to open a plurality of holes on the crack of the cement stabilized base layer at intervals, wherein the holes are distributed at intervals along the length direction of the crack;
providing a plugging material, and carrying out drip irrigation on the plugging material in the hole so as to enable the plugging material to penetrate and fill the crack;
and providing a self-adhesive anti-cracking paste, and pasting and fixing the self-adhesive anti-cracking paste along the length direction of the crack to seal and cover the crack.
According to the invention, the plurality of holes are formed in the crack, so that the plugging material of the dropper can penetrate and densely fill the crack, the unfilled gap is avoided, and the self-adhesive anti-cracking paste is fixed at the crack to seal the crack, so that the crack is effectively sealed, and a water seepage path is prevented from being formed when water penetrates to the crack.
The crack repairing method for the cement stabilized base layer in the pavement structure is further improved by providing the glass fiber grids, and paving and fixing the glass fiber grids on the cement stabilized base layer along the length direction of the self-adhesive anti-cracking paste on two sides of the self-adhesive anti-cracking paste, so that the glass fiber grids press the side parts of the self-adhesive anti-cracking paste.
The method for repairing the crack of the cement stabilized base layer in the pavement structure is further improved by providing iron sheets and steel nails, arranging a plurality of iron sheets on the glass fiber grating at intervals along the length direction of the glass fiber grating, and penetrating the steel nails through the iron sheets and the glass fiber grating and striking the steel nails into the cement stabilized base layer so as to enable the glass fiber grating to be fixedly pressed on the cement stabilized base layer.
The invention further provides a method for repairing cracks of the cement stabilized base layer in the pavement structure, which is characterized in that a pneumatic steel nail gun is provided, and the steel nails are arranged by the pneumatic steel nail gun.
The method for repairing the crack of the cement stabilized base in the pavement structure is further improved in that a plurality of steel nails are uniformly distributed at intervals on each iron sheet.
The method for repairing the crack of the cement stabilized base layer in the pavement structure is further improved in that when the plugging material is subjected to drip irrigation, the drip irrigation for each crack is not less than 2 times.
The method for repairing the crack of the water-stable base layer in the pavement structure is further improved in that after the blocking material of the previous drip irrigation is demulsified, the blocking material of the next drip irrigation is carried out.
The method for repairing the crack of the cement stabilized base layer in the pavement structure is further improved in that after the hole is formed, an air blower is provided, and the crack and residues in the hole are cleaned up by the air blower.
The method for repairing the crack of the water stable base layer in the pavement structure is further improved in that the provided plugging material is SBS modified asphalt.
The method for repairing the crack of the water-stable base layer in the pavement structure is further improved in that a rubber-tyred roller is provided after the self-adhesive anti-cracking paste is pasted, and the self-adhesive anti-cracking paste is tightly pressed and fixed at the crack by the rubber-tyred roller.
Drawings
FIG. 1 is a flow chart of the method for repairing cracks in a water-stable base layer in a pavement structure according to the present invention.
Fig. 2 is a top view of the self-adhesive anti-cracking sticker and the glass fiber grating part in the crack repairing method of the cement stabilized base layer in the pavement structure.
FIG. 3 is a cross-sectional view of the self-adhesive anti-cracking tape and the glass fiber grating in the method for repairing cracks of the water-stable base layer in the pavement structure.
Description of the symbols: the water-stable base layer 10, the crack 11, the plugging material 20, the self-adhesive anti-cracking paste 30, the glass fiber grating 40, the iron sheet 50 and the steel nail 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a method for repairing a crack of a cement stabilized base layer in a pavement structure, which is used for repairing the crack of the cement stabilized base layer in the pavement structure. The invention standardizes, neatly and beautifully treats the cracks of the cement stabilized base layer, saves human resources and materials, and practically improves the construction quality of the roadbed and the pavement, thereby effectively avoiding serious quality hidden troubles that the crack treatment measures are not in place, the crack of the surface layer is finally caused by the expansion to the asphalt surface layer or the radial flow channel is provided for the infiltration of rainwater on the roadbed surface, and the strength of the roadbed is weakened.
The method for repairing cracks in the water-stable base layer in the pavement structure of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, in this embodiment, a method for repairing a crack of a cement base layer in a pavement structure includes the following steps:
s101: after the construction of the cement stabilized base 10 is completed, providing drilling equipment, and forming a plurality of holes on the crack 11 of the cement stabilized base 10 at intervals by using the drilling equipment, wherein the holes are distributed at intervals along the length direction of the crack 11;
s102: providing a plugging material 20, and dripping the plugging material 20 into the hole so that the plugging material 20 permeates and fills the crack 11;
s103: providing a self-adhesive anti-cracking sticker 30, and sticking and fixing the self-adhesive anti-cracking sticker 30 to the crack 11 along the length direction of the crack 11 to seal the crack 11.
Crack repair method in this embodiment is through seting up a plurality of hole on crack 11 to ensure that the plugging material 20 of burette can permeate and closely fill up crack 11, avoid having the space that does not fill up, paste through self-adhesive type crack control subsides 30 and be fixed in crack 11 department in order to carry out the closing cap processing with crack 11, thereby play effectual sealed effect to crack 11 department, avoid water infiltration to crack 11 department formation infiltration route, practice thrift manpower and materials, effectively stop crack 11 treatment measures not in place, promote stable basic unit 10 crack 11 of road bed water and handle construction quality.
Referring to fig. 2 and 3, a further improvement of the method for repairing the crack 11 in the cement base layer 10 in the pavement structure of the embodiment is to provide a glass fiber grid 40, and the glass fiber grid 40 is laid and fixed on the cement base layer 10 along the length direction of the self-adhesive crack control paste 30 on both sides of the self-adhesive crack control paste 30, so that the glass fiber grid 40 presses the side of the self-adhesive crack control paste 30.
The side part of the self-adhesive anti-cracking sticker 30 is sealed and covered by the glass fiber grating 40, so that the side part of the self-adhesive anti-cracking sticker 30 is effectively sealed and compressed, and the problem of water seepage of the side part of the self-adhesive anti-cracking sticker 30 is solved. The glass fiber grating 40 has good tensile strength, tear strength and creep resistance, and is a planar network material formed by coating treatment of high-quality modified asphalt. According to the similar compatibility principle, the composite performance of the asphalt mixture is emphasized, the glass fiber base material is fully protected, the wear resistance and the shearing resistance of the base material are greatly improved, and therefore the asphalt mixture is used for reinforcing pavements, resisting the generation of highway diseases such as cracks and ruts and the like, and the problem that the asphalt pavements are difficult to reinforce is solved.
Referring to fig. 2 and 3, a further improvement of the method for repairing the crack 11 of the cement-based layer 10 in the pavement structure of the embodiment is to provide iron sheets 50 and steel nails 70, place a plurality of the iron sheets 50 on the glass fiber grid 40 at intervals along the length direction of the glass fiber grid 40, and place the steel nails 70 into the cement-based layer 10 through the iron sheets 50 and the glass fiber grid 40 so as to press and fix the glass fiber grid 40 on the cement-based layer 10.
The steel nails 70 are arranged on the cement stabilized base layer 10, and the iron sheet 50 is pressed on the glass fiber grating 40, so that the glass fiber grating 40 is pressed and fixed on the cement stabilized base layer 10.
Referring to fig. 2 and 3, the method for repairing the crack 11 of the cement base layer 10 in the pavement structure of the present embodiment is further improved by providing a pneumatic steel nail 70 gun, and striking the steel nail 70 with the pneumatic steel nail 70 gun.
Referring to fig. 2 and 3, the method for repairing the crack 11 of the cement base layer 10 in the pavement structure of the present embodiment is further improved in that a plurality of steel nails 70 are uniformly spaced on each iron sheet 50.
The method for repairing the crack 11 of the water-stable base layer 10 in the pavement structure of the embodiment is further improved in that when the plugging material 20 is subjected to drop irrigation, the drop irrigation is not less than 2 times per crack 11.
The method for repairing the crack 11 of the water-stable base layer 10 in the pavement structure of the embodiment is further improved in that after the blocking material 20 of the previous drip irrigation is demulsified, the next blocking material 20 is drip-irrigated. The demulsification phenomenon is a process of dispersing emulsion into small liquid beads to form large liquid drops and finally layering and separating out oil and water phases, and is also called as demulsification. Essentially eliminating emulsion stabilizing conditions, causing the dispersed droplets to aggregate and delaminate.
The method for repairing the crack 11 of the cement base layer 10 in the pavement structure of the embodiment is further improved in that after the hole is formed, a blower is provided, and the crack 11 and residues in the hole are cleaned by the blower.
Referring to fig. 2 and fig. 3, a further improvement of the method for repairing the crack 11 of the water-stable base layer 10 in the pavement structure of this embodiment is that the provided plugging material 20 is SBS modified asphalt, and the SBS modified asphalt has a stretching property and can adapt to the stretching deformation of the crack 11, so as to ensure that the crack 11 can be densely filled with the SBS modified asphalt all the time, and avoid a new gap from being generated between the plugging material 20 and the crack 11 due to shrinkage expansion.
The method for repairing the crack 11 of the water-stable base layer 10 in the pavement structure of the embodiment is further improved in that after the self-adhesive anti-cracking sticker 30 is pasted, a rubber-tyred roller is provided, and the self-adhesive anti-cracking sticker 30 is tightly pressed and fixed at the crack 11 by the rubber-tyred roller.
A specific embodiment of the method for repairing a crack in a water-stable base layer in a pavement structure according to this embodiment will be described below.
Referring to fig. 2 and 3, according to the width and depth of the transverse crack 11 of the water-stable base layer 10, the SBS modified asphalt, the anti-cracking paste, the glass fiber grating 40(80KN), the perforating machine, the handheld blower, the steel nail 70 air gun, the iron sheet 50 and the steel nail 70 are adopted to form a suitable simple method for treating the transverse crack 11 of the water-stable base layer 10, and the material can be manually and mechanically transported. Firstly, checking the position, the length and the width of a transverse crack 11 generated after the construction of the cement stabilized base 10 is finished, making statistics, and determining a treatment scheme according to the width of the crack; punching at 1-2m intervals along the proper position of the transverse crack 11 according to the width of the crack 11 by using a punching machine, wherein the aperture is 0.5-1cm, then cleaning residues in the crack and the hole by using a handheld blower, and keeping the surface dry; performing crack pouring treatment by adopting SBS modified asphalt, manually performing drip irrigation by adopting a small spoon, performing drip irrigation for 11 cracks for at least 2 times, and performing emulsion breaking and then pouring for 2 times after pouring for 1 time until the cracks are filled; paving a self-adhesive anti-cracking paste with the width of 20-50cm, and centering the self-adhesive anti-cracking paste with the position of the crack 11, wherein a rubber-wheel road roller can be used for compacting to ensure the compactness; the two sides of the anti-cracking paste are respectively paved with 30-50cm wide glass fiber grids 40(80kn), and the glass fiber grids 40 are fixed by arranging 5-8cm long steel nails 70 and 1.5 x 1.5cm and 0.1-0.2cm thick square iron sheets 50 in a plum blossom shape, so that the stability of the glass fiber grids 40 is ensured.
By adopting the technical scheme, the embodiment has the following beneficial effects:
the embodiment reduces the manpower and material resource loss of the treatment of the 10 cracks 11 of the roadbed water stabilization base layer, effectively avoids the condition that the treatment of the transverse cracks 11 is not in place, and improves the pavement construction quality. This embodiment construction is simple swift, has convenient advantage, practices thrift the manpower, promotes the steady basic unit of road bed water 10 horizontal crack 11 and handles construction quality to effectively avoided leading to the surface course fracture or providing radial flow channel for road surface rainwater infiltration road bed because of crack 11 treatment measures do not in place causes the extension to pitch surface course finally, weakened the serious quality hidden danger of the intensity of road bed.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
Claims (10)
1. A method for repairing a crack of a cement stabilized base layer in a pavement structure is characterized by comprising the following steps:
after the construction of the cement stabilized base layer is completed, providing drilling equipment, and utilizing the drilling equipment to open a plurality of holes on the crack of the cement stabilized base layer at intervals, wherein the holes are distributed at intervals along the length direction of the crack;
providing a plugging material, and carrying out drip irrigation on the plugging material in the hole so as to enable the plugging material to penetrate and fill the crack;
and providing a self-adhesive anti-cracking paste, and pasting and fixing the self-adhesive anti-cracking paste along the length direction of the crack to seal and cover the crack.
2. The method for repairing a crack in a cement base layer in a pavement structure as claimed in claim 1, wherein a glass fiber grating is provided, and the glass fiber grating is laid and fixed on the cement base layer along the length direction of the self-adhesive anti-cracking paste on two sides of the self-adhesive anti-cracking paste, so that the glass fiber grating presses the side of the self-adhesive anti-cracking paste.
3. The method for repairing cracks in a cement stabilized base layer in a pavement structure as claimed in claim 2, wherein iron pieces and steel nails are provided, a plurality of the iron pieces are placed on the glass fiber grating at intervals along the length direction of the glass fiber grating, and the steel nails are inserted through the iron pieces and the glass fiber grating and are driven into the cement stabilized base layer so as to press-fix the glass fiber grating on the cement stabilized base layer.
4. A method of repairing a crack in a water stable base layer in a pavement structure as set forth in claim 3, characterized in that a pneumatic nail gun is provided, and said nail is nailed by said pneumatic nail gun.
5. A method for repairing a crack in a cement base layer in a pavement structure as claimed in claim 3, wherein a plurality of steel nails are uniformly spaced on each iron sheet.
6. The method for repairing cracks in a water-stable base layer in a pavement structure of claim 1, wherein the plugging material is drip-applied not less than 2 times per crack.
7. The method for repairing a crack in a water-stable base layer in a pavement structure as set forth in claim 6, wherein after the blocking material of the previous drip irrigation is broken, the blocking material of the next drip irrigation is again drip-irrigated.
8. The method for repairing cracks in a water-stable base layer in a pavement structure according to claim 1, wherein after the holes are formed, an air blower is provided, and the cracks and residues in the holes are cleaned by the air blower.
9. The method of repairing a crack in a water-stable base layer in a pavement structure of claim 1, wherein the plugging material is SBS modified asphalt.
10. The method for repairing a crack in a water-stable base layer in a pavement structure as claimed in claim 1, wherein after the self-adhesive anti-cracking sticker is stuck, a rubber-wheeled roller is provided, and the self-adhesive anti-cracking sticker is pressed and fixed at the crack by using the rubber-wheeled roller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210884887.XA CN115125790A (en) | 2022-07-26 | 2022-07-26 | Crack repairing method for water stabilization base layer in pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210884887.XA CN115125790A (en) | 2022-07-26 | 2022-07-26 | Crack repairing method for water stabilization base layer in pavement structure |
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| CN202210884887.XA Pending CN115125790A (en) | 2022-07-26 | 2022-07-26 | Crack repairing method for water stabilization base layer in pavement structure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5630677A (en) * | 1995-07-25 | 1997-05-20 | Barroso; Luther C. | Method for repair of cracked pavement |
| CN204417951U (en) * | 2014-12-24 | 2015-06-24 | 中核华泰建设有限公司 | A kind of highway pavement damaged crack repair structure |
| CN113356094A (en) * | 2021-07-13 | 2021-09-07 | 重庆交通大学 | Road and bridge repair and supplement fixing device |
-
2022
- 2022-07-26 CN CN202210884887.XA patent/CN115125790A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5630677A (en) * | 1995-07-25 | 1997-05-20 | Barroso; Luther C. | Method for repair of cracked pavement |
| CN204417951U (en) * | 2014-12-24 | 2015-06-24 | 中核华泰建设有限公司 | A kind of highway pavement damaged crack repair structure |
| CN113356094A (en) * | 2021-07-13 | 2021-09-07 | 重庆交通大学 | Road and bridge repair and supplement fixing device |
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