CN104047217A - Rapid pavement restoration method - Google Patents
Rapid pavement restoration method Download PDFInfo
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- CN104047217A CN104047217A CN201410223843.8A CN201410223843A CN104047217A CN 104047217 A CN104047217 A CN 104047217A CN 201410223843 A CN201410223843 A CN 201410223843A CN 104047217 A CN104047217 A CN 104047217A
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- injected hole
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Abstract
The invention relates to a rapid pavement restoration method, which comprises the following steps: a. using ground penetrating radar to detect a subgrade void position of a damaged pavement, marking the leak location on the pavement, and determining a settlement position; b. marking grouting hole positions near the underground cavity, deep cavity or a water layer, and drilling and installing a grouting pipe on the grouting hole positions; c. grouting into the pipe and conducting real-time monitoring of on the uplift condition of the pavement layer; d. after grouting, using ground penetrating radar to detect void, seepage and settlement in subgrade, and conducting re-drilling and grouting on the positions with the above conditions; and e. after the grouting, sealing and cleaning the grouting holes. Through the combination of defect detection by ground penetrating radar and grouting on defect positions, the method rapidly determines the damaged positions on the subgrade and restore the subgrade through grouting, so as to achieve the purposes of high restoration efficiency and good effect.
Description
Technical field
The present invention relates to a kind of road surface fast repairing method, can extend the application life of rigid pavement.
Background technology
Existing road surface comprises rigid pavement and asphalt surface, road surface under wheel load effect frequently, the disease phenomenons such as because empty, loose, uncompacted situation appears in part roadbed, road surface occurs crack, faulting of slab ends, comes to nothing, purt mud, depression.Solution to this kind of situation in prior art comprises: (1) is occurring that behind crack, taking to inject along gap pitch or concrete slurry mends a split or overlay bitumen layer, due to the existing breakage to a certain degree of sub-surface now, under wheel load effect frequently, this disease can continue development, and therefore the validity of the method and durability are poor and cure the symptoms, not the disease; (2) along with the further developing of disease, suspend traffic and take belly breaking, the method for maintaining of construction again, the method still can not solve loose, the uncompacted problem of roadbed, still there will be from now on this disease; (3) adopt as Chinese patent literature number be Urban Asphalt Pavement repair structure and the construction method thereof of CN102817299A; road pavement carries out carrying out degree of depth reparation after break process again; the method work progress complexity; length consuming time; larger to traffic impact; also can produce noise and a large amount of dust, unfavorable to environmental protection.
Summary of the invention
The primary technical problem solving of the present invention is to provide a kind of road surface fast repairing method, can repair fast impaired road surface.
In order to solve the problems of the technologies described above, the invention provides a kind of road surface fast repairing method, it comprises the steps:
A. utilize the roadbed on the impaired road surface of the examination of explore ground radar position of coming to nothing, seepage position, mark road surface, determines depression position;
B. at close underground cavity, deep layer cavity or ponding layer place mark injected hole position, hole and Grouting Pipe is installed in each injected hole position;
C. Grouting Pipe is carried out the lifting situation of slip casting the layer of monitoring paving in real time;
D. after slip casting, utilize in examination of explore ground radar roadbed whether also exist come to nothing, seepage and depression situation, to existing the position of above-mentioned situation to re-start boring, slip casting;
E. slip casting finishes rear injected hole to be carried out to sealing of hole cleaning.
The diameter of described injected hole is 12mm.
When the pavement crack on impaired road surface is longitudinal joint, injected hole misplaces respectively and is arranged in this both sides, crack, and the center distance of homonymy injected hole is 100cm, and the spacing in each injected hole center to crack is 25cm.
When the pavement crack on impaired road surface is transverse joint, injected hole misplaces respectively and is arranged in this both sides, crack, the center distance of homonymy injected hole is 100cm, and the spacing in each injected hole center to crack is 25cm, and the spacing at runway edge and adjacent injected hole center is 37.5cm-87.5cm.
Along described pavement crack from one end to the other side "the" shape intersect successively each injected hole is carried out to slip casting.
The present invention also provides a kind of slurry of redeck, and this slurry is for the slip casting process of above-mentioned road surface fast repairing method.
This slurry is the double-component high-strength foam-type resin that comprises resin and hardener.
This slurry solidifies completely after 10 minutes and reaches final strength injecting.
With respect to prior art, the technique effect that the present invention has is:
1) road surface of the present invention fast repairing method, combines with rejected region slip casting by examination of explore ground radar defect, determines fast roadbed damaged part and repairs by slip casting, and remediation efficiency is high;
2) the about 12mm of described injected hole, the middle boring that adopts 16mm compared to existing technology, in boring and follow-up sealing of hole process, the impact of road pavement structure is less;
3) injected hole is furnished with and is beneficial to the cavity, the ponding layer etc. that make slurry inject fast below, crack and locates along crack dislocation;
4) injected hole and runway edge keep suitable spacing, have both been conducive to the quick injection of slurry, can not make again injected hole affect other facility of road edge;
5) slip casting of "the" shape intersection can make the slurry that injects adjacent injected hole arrive the curing entirety that is interconnected to behind underground cavity or gap, strengthens the structural strength of ground;
6) described slurry is not moisture, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing; After slurry curing, there are pliability and elasticity, be not easy to ftracture, its tensile strength and compressive strength and concrete are more approaching, there is to supporting role on the road surface of mating formation, this resin material has good impermeability simultaneously, can stop rainwater infiltration, road pavement crack and seam have good sealing function, thereby avoid roadbed again to occur ponding layer;
7) after slurry curing, form foaming shape solid, its density is 8% of cement paste or bituminous material, to existing the base course of disease or the imposed load of loose roadbed generation little;
8) elative free swelling ratio of this slurry can reach 20:1, can come to nothing and crack by Fast Filling, and the soil layer in expansion process around further compacting, is suitable for the road surface of depression to carry out lifting simultaneously under pressure and expansion;
9) this slurry can reach its final strength after 10 minutes in injection, has increased substantially the efficiency of road surface reparation and has reduced the impact on traffic;
10) this slurry can be discharged the ponding in roadbed in slip casting process, and slurry when slip casting and after solidifying is not subject to the impact of wet environment;
11) solidify after Stability of Slurry strong, be difficult for aging distortion, underground durability can reach a century;
12), after slurry curing, each chemical composition can not run off, environmentally safe;
13) road surface after this slurry is repaired, the later stage, without periodic maintenance, maintenance, has reduced maintenance of surface cost.
Brief description of the drawings
In order to clearly demonstrate innovative principle of the present invention and the technical advantage than existing product thereof, by applying the limiting examples of described principle, possible embodiment is described by means of accompanying drawing below.In the drawings:
Fig. 1 is the profile on impaired road surface in the present invention;
Fig. 2 is the profile on the road surface after slip casting in the present invention;
Fig. 3 is the arrangement diagram of injected hole when road surface exists longitudinal joint in the present invention;
Fig. 4 is the arrangement diagram of injected hole when road surface exists transverse joint in the present invention;
Fig. 5 is the profile of the rigid pavement after slip casting in the present invention;
Fig. 6 is the flow chart that in the present invention, repair fast on road surface.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, impaired road surface generally comprises: the layer 1 of mating formation, underground cavity 2, unconsolidated formation 3, deep layer cavity 4, ponding layer 5, steady soil 6.
Owing to there being underground cavity 2 under the road surface of mating formation, unconsolidated formation 3, deep layer cavity 4, under wheel rolls for a long time, the layer 1 of mating formation there will be sagging and then appearance phenomenon of rupture as shown in Figure 1, can only control table if only repair the layer of mating formation, therefore need to repair cavity, unconsolidated formation, the ponding layer that roadbed exists, fundamentally change the unsteady phenomenon of roadbed.
As shown in Fig. 3, Fig. 4 and Fig. 6, road surface of the present invention fast repairing method, comprises the following steps:
(1) utilize the roadbed on the impaired road surface of the examination of explore ground radar position of coming to nothing, seepage position, mark road surface, determines depression position;
(2) mark injected hole 13 positions, hole and Grouting Pipe 8 is installed in each injected hole position, the diameter of injected hole is 12mm, the as far as possible close underground cavity 2 of Grouting Pipe, deep layer cavity 4 or ponding layer 5; Be that while being parallel to the longitudinal joint of runway 11, injected hole 13 misplaces respectively and is arranged in this both sides, crack for pavement crack 12 as shown in Figure 3, the center distance of homonymy injected hole is 100cm, and each injected hole 13 centers to the spacing in crack is 25cm; While being the transverse joint perpendicular to runway 11 for pavement crack 12 as shown in Figure 4, injected hole 13 misplaces respectively and is arranged in this both sides, crack, the center distance of homonymy injected hole is 100cm, each injected hole 13 centers to the spacing in crack is 25cm, and the spacing at runway both sides of the edge and adjacent injected hole center is 37.5cm-87.5cm simultaneously.
(3) in Grouting Pipe 8, filling adaptor is installed, debugging grouting equipment is also connected with filling adaptor, and inspection injecting paste material also adds in grouting equipment;
(4) along crack, from one end to the other side "the" shape intersection is carried out slip casting to each injected hole, the lifting situation of simultaneous real-time monitoring paving layer 1 successively;
(5) after slip casting, utilize in examination of explore ground radar roadbed whether also exist come to nothing, seepage and depression situation, to existing the position of above-mentioned situation to re-start boring, slip casting;
(6) while there is not above-mentioned situation in roadbed, slip casting finishes, and injected hole is carried out to sealing of hole cleaning, finally resumes traffic.
As shown in Figure 2, the sidewall of described Grouting Pipe is provided with multiple slurry outlets, enter from grouting port Grouting Pipe 8 when having the slurries of certain pressure, enter and fill up above-mentioned underground cavity 2 and deep layer cavity 4 from each slurry outlet, slurry injects in the gap of unconsolidated formation 3 and steady soil 6 under pressure; Slurry injects under pressure in each ponding layer 5 and extrudes ponding, thereby fills ponding layer 5; As shown in Figures 1 and 2, for the road surface of depression, above-mentioned slurry can make the layer 1 of mating formation sinking be raised to normal position after pressure injects; The about 12mm of described injected hole, road pavement structure is substantially without damaging.
As shown in Figure 5, for the road surface of layer of concrete, it comprises: concrete pavement 14, semi-rigid type base 15 and native subbase 16, Grouting Pipe 8 is through above-mentioned concrete pavement 14, and semi-rigid type base 15 also arrives the bottom of native subbase 16, and the slurry 7 of injection is in slurry outlet enters faulted joint 17, after slurry curing, make road surface and the roadbed plate of above-mentioned fracture be connected to entirety, improve the bulk strength of road surface and roadbed plate.
Embodiment 2
Slurry described in the present invention adopts a kind of double-component high-strength foam-type resin, its model is SZ1, this double-component high-strength foam-type resin comprises resin dedicated and two kinds of components of hardener, when slip casting, two kinds of components are added in above-mentioned grouting equipment simultaneously, after mixing, there is chemical reaction in two kinds of components, volume expands rapidly and forms foam-like slurries, the middle volume that flows of these slurries constantly increases, its penetrating power is strong, be suitable for arriving fast the position or enter in gap of coming to nothing, be suitable under pressure squeezing ponding, after above-mentioned slurry injects 10 minutes, solidify completely and reach its final strength.
Compare existing road surface and repair slurry, this slurry has following characteristics:
(1) this slurry is not moisture, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing; After slurry curing, there are pliability and elasticity, be not easy to ftracture, its tensile strength and compressive strength and concrete are more approaching, there is to supporting role on the road surface of mating formation, this resin material has good impermeability simultaneously, can stop rainwater infiltration, road pavement crack and seam have good sealing function, thereby avoid roadbed again to occur ponding layer;
(2) after slurry curing, form foaming shape solid, its density is 8% of cement paste or bituminous material, to existing the base course of disease or the imposed load of loose roadbed generation little;
(3) elative free swelling ratio of this slurry can reach 20:1, can come to nothing and crack by Fast Filling, and the soil layer in expansion process around further compacting, is suitable for the road surface of depression to carry out lifting simultaneously under pressure and expansion;
(4) this slurry can reach its final strength after 10 minutes in injection, has increased substantially the efficiency of road surface reparation and has reduced the impact on traffic;
(5) this slurry can be discharged the ponding in roadbed in slip casting process, and slurry when slip casting and after solidifying is not subject to the impact of wet environment;
(6) solidify after Stability of Slurry strong, be difficult for aging distortion, underground durability can reach a century;
(7), after slurry curing, each chemical composition can not run off, environmentally safe;
(7) road surface after this slurry is repaired, the later stage, without periodic maintenance, maintenance, has reduced maintenance of surface cost.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And these belong to apparent variation that spirit of the present invention extended out or variation still among protection scope of the present invention.
Claims (5)
1. a road surface fast repairing method, is characterized in that comprising the steps:
A. utilize the roadbed on the impaired road surface of the examination of explore ground radar position of coming to nothing, seepage position, mark road surface, determines depression position;
B. at close underground cavity (2), deep layer cavity (4) or ponding layer (5) locate to mark injected hole (13) position, hole and Grouting Pipe (8) is installed in each injected hole position;
C. Grouting Pipe (8) is carried out the situation of slip casting the lifting of real-time monitoring paving layer (1);
D. after slip casting, utilize in examination of explore ground radar roadbed whether also exist come to nothing, seepage and depression situation, to existing the position of above-mentioned situation to re-start boring, slip casting;
E. slip casting finishes rear injected hole to be carried out to sealing of hole cleaning.
2. road surface according to claim 1 fast repairing method, is characterized in that: the diameter of described injected hole is 12mm.
3. road surface according to claim 2 fast repairing method, it is characterized in that: when the pavement crack (12) on impaired road surface is longitudinal joint, injected hole (13) misplaces respectively and is arranged in this both sides, crack, the center distance of homonymy injected hole is 100cm, and each injected hole (13) center to the spacing in crack is 25cm.
4. road surface according to claim 2 fast repairing method, it is characterized in that: when the pavement crack (12) on impaired road surface is transverse joint, injected hole (13) misplaces respectively and is arranged in this both sides, crack, the center distance of homonymy injected hole is 100cm, each injected hole (13) center is 25cm to the spacing in crack, and the spacing at runway edge and adjacent injected hole center is 37.5cm-87.5cm.
5. according to the road surface fast repairing method one of claim 3-4 Suo Shu, it is characterized in that: along described pavement crack from one end to the other side "the" shape intersect successively each injected hole is carried out to slip casting.
Priority Applications (1)
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| CN201410223843.8A CN104047217A (en) | 2014-05-26 | 2014-05-26 | Rapid pavement restoration method |
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| CN201410223843.8A CN104047217A (en) | 2014-05-26 | 2014-05-26 | Rapid pavement restoration method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480844A (en) * | 2014-12-15 | 2015-04-01 | 中南林业科技大学 | Method for repairing crack of asphalt concrete pavement |
| CN104727207A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Structural maintenance and design method of semi-rigid base-layer asphalt pavement |
| CN106759561A (en) * | 2017-02-23 | 2017-05-31 | 中冶集团武汉勘察研究院有限公司 | One kind builds/structures shallow foundation empty processing method |
| CN109440610A (en) * | 2018-12-18 | 2019-03-08 | 江苏中路工程技术研究院有限公司 | A kind of pavement crack width, depth determination method and quick maintenance method based on Ground Penetrating Radar |
| CN109555526A (en) * | 2018-11-16 | 2019-04-02 | 中铁二十三局集团有限公司 | Grouting strengthening method for underground cavity |
| CN110963765A (en) * | 2019-12-26 | 2020-04-07 | 中交第二航务工程局有限公司 | Foam concrete and method for repairing pavement subsidence by adopting same |
| CN111021186A (en) * | 2019-12-31 | 2020-04-17 | 广东粤路勘察设计有限公司 | Method for repairing large-space joint of concrete pavement slab |
| CN113235381A (en) * | 2020-03-23 | 2021-08-10 | 鲍欢 | Deep clearance drainage device of ultrasonic wave for bituminous paving lays |
| CN113417185A (en) * | 2021-05-25 | 2021-09-21 | 山东高速工程建设集团有限公司 | Treatment method for rockfill subgrade void cracking |
| CN114277775A (en) * | 2022-01-20 | 2022-04-05 | 中铁四院集团工程建设有限责任公司 | Construction method for treating long and narrow cracks |
| CN114908633A (en) * | 2022-05-05 | 2022-08-16 | 长沙理工大学 | Pavement slab staggering repairing device and pavement repairing method |
| CN114908732A (en) * | 2022-05-18 | 2022-08-16 | 郑州大学 | Underground cavity multi-grouting hole filling and repairing method |
| CN115491944A (en) * | 2022-09-23 | 2022-12-20 | 郑州安源工程技术有限公司 | Method for repairing road hidden trouble diseases |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480844A (en) * | 2014-12-15 | 2015-04-01 | 中南林业科技大学 | Method for repairing crack of asphalt concrete pavement |
| CN104727207A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Structural maintenance and design method of semi-rigid base-layer asphalt pavement |
| CN104727207B (en) * | 2015-03-31 | 2016-08-17 | 东南大学 | A kind of semi-rigid base asphalt pavement structure maintenance method for designing |
| CN106759561A (en) * | 2017-02-23 | 2017-05-31 | 中冶集团武汉勘察研究院有限公司 | One kind builds/structures shallow foundation empty processing method |
| CN106759561B (en) * | 2017-02-23 | 2019-03-05 | 中冶集团武汉勘察研究院有限公司 | One kind building/structures shallow foundation empty processing method |
| CN109555526A (en) * | 2018-11-16 | 2019-04-02 | 中铁二十三局集团有限公司 | Grouting strengthening method for underground cavity |
| CN109440610A (en) * | 2018-12-18 | 2019-03-08 | 江苏中路工程技术研究院有限公司 | A kind of pavement crack width, depth determination method and quick maintenance method based on Ground Penetrating Radar |
| CN110963765A (en) * | 2019-12-26 | 2020-04-07 | 中交第二航务工程局有限公司 | Foam concrete and method for repairing pavement subsidence by adopting same |
| CN111021186A (en) * | 2019-12-31 | 2020-04-17 | 广东粤路勘察设计有限公司 | Method for repairing large-space joint of concrete pavement slab |
| CN113235381A (en) * | 2020-03-23 | 2021-08-10 | 鲍欢 | Deep clearance drainage device of ultrasonic wave for bituminous paving lays |
| CN113417185A (en) * | 2021-05-25 | 2021-09-21 | 山东高速工程建设集团有限公司 | Treatment method for rockfill subgrade void cracking |
| CN113417185B (en) * | 2021-05-25 | 2022-10-14 | 山东高速工程建设集团有限公司 | Treatment method for rockfill subgrade void cracking |
| CN114277775A (en) * | 2022-01-20 | 2022-04-05 | 中铁四院集团工程建设有限责任公司 | Construction method for treating long and narrow cracks |
| CN114277775B (en) * | 2022-01-20 | 2023-10-03 | 中铁四院集团工程建设有限责任公司 | Construction method for repairing long and narrow cracks |
| CN114908633A (en) * | 2022-05-05 | 2022-08-16 | 长沙理工大学 | Pavement slab staggering repairing device and pavement repairing method |
| CN114908732A (en) * | 2022-05-18 | 2022-08-16 | 郑州大学 | Underground cavity multi-grouting hole filling and repairing method |
| CN114908732B (en) * | 2022-05-18 | 2023-08-22 | 郑州大学 | Filling and repairing method for multiple grouting holes of underground cavity |
| CN115491944A (en) * | 2022-09-23 | 2022-12-20 | 郑州安源工程技术有限公司 | Method for repairing road hidden trouble diseases |
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