CN104032641A - Method for prolonging service life of concrete pavement - Google Patents
Method for prolonging service life of concrete pavement Download PDFInfo
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- CN104032641A CN104032641A CN201310636872.2A CN201310636872A CN104032641A CN 104032641 A CN104032641 A CN 104032641A CN 201310636872 A CN201310636872 A CN 201310636872A CN 104032641 A CN104032641 A CN 104032641A
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Abstract
The invention relates to a method for prolonging service life of concrete pavement, and the method comprises the following steps: A)several circle through holes which are characterized in that distance between center of circle and a seam is 2-50cm are arranged on the concrete blocks at two sides of the seam, and the through hole directly reaches to a gap between the concrete pavement and a roadbed, center-to-center spacing between the adjacent through holes on same concrete block is 10-120cm; B)a slip casting machine is used for performing slip casing by pressure on the through holes at two sides of the seam, so that foaming-type resin slurry directly reaches to the gap, and the air or hydrops can be discharged, gap is filled with the slurry, when the gap is full of the slurry, slip-casting is stopped; and C)the slurry in the gap is solidified for 1-10 minutes, the slip casting machine is used for performing slip casing to each through holes, slurry is filled to the position in where 2-5cm from the top of the through hole, and then solidified, non-shrink mortar is used on the upper surface of the solidified slurry, and then the through hole is filled and flattened. The method can avoid the water seepage phenomenon at the pavement seam and can prolong the service life of the concrete pavement.
Description
Technical field
The present invention relates to a kind of method that extends the rigid pavement life-span, can extend the application life of rigid pavement.
Background technology
In order to adapt to the temperature deformation of cement concrete pavement, along circuit in length and breadth to vertical, horizontal seam is set at a certain distance; But this vertical, horizontal seam crossing easily infiltrates rainwater, make roadbed softening, under wheel load effect frequently, road surface there is faulting of slab ends or come to nothing, the phenomenon such as purt mud, and then progressively cause road surface to occur cracking, fracture, the serious plant disease such as damaged.Solution to this kind of situation in prior art comprises: (1) takes mend a split or overlay bitumen layer along gap slip casting behind crack occurring, 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 the problem of seam infiltration; (3) adopt as the China Patent Publication No. waterproof construction described in document that is 2755167, but this structure forms by multiple material is bonding, when road surface change through temperature in four seasons and sleet corrode after this kind of adhesives there will be aging, thereby make waterproof construction destroyed; (4) adopt as the China Patent Publication No. slip casting maintenance technique described in document that is 101261265, the disease that this technology can only be come to nothing for road surface and can only road pavement occurring keeping in repair again after this disease, cannot play permanent curing action; (5) adopt as method that the China Patent Publication No. flashing described in document that is 101041977 stops the seam crossing of rigid pavement to seep water, but after vehicle rolls on the contrary on the road surface of this flashing of employing, between this concrete block and flashing, there will be relative deformation, thereby make to occur gap between flashing and concrete block, this gap can expand gradually under the impact of sleet and temperature in four seasons variation, thereby waterproof action was lost efficacy; (6) adopt as China Patent Publication No. be that the method that 101775779A or China Patent Publication No. are 101831855A described in document, multiple waterproof construction is mated formation is carried out waterproof, the method need to be laid waterproof construction or material to roadbed laying before rigid pavement comprehensively, and material requested quantity is many, construction costs is high, less economical.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that extends the rigid pavement life-span, can prevent from causing the pavement joint infiltration phenomenon that roadbed is softening, has extended the life-span of rigid pavement.
In order to solve the problems of the technologies described above, the invention provides a kind of method that extends the rigid pavement life-span, it comprise including of laying multiple concrete blocks and this concrete block between the rigid pavement of seam, it is characterized in that comprising the steps:
The seam both sides of A, described rigid pavement of having laid are respectively equipped with multiple centers of circle from the gap between the manhole of seam 2-50cm and this through hole bottom, through described rigid pavement and road base, and the center distance of the adjacent through-holes on the concrete block of described seam the same side is 10-120cm;
B, through hole install Grouting Pipe, utilize slurry filling machine to adopt foam-type resin slurry successively the through hole of these seam both sides to be carried out to slip casing by pressure, when observing when slurry outwards gushes and stop the slip casting of this through hole and next through hole is carried out to slip casting from seam or adjacent through-holes, under pressure, the gap of the through rigid pavement of slurry and roadbed, air therebetween or ponding are discharged, make the gap between rigid pavement and the roadbed of seam both sides be full of slurry;
C, described injection gap foam-type resin slurry through 1-10 minute after coagulation, then utilize slurry filling machine to carry out slip casting to described each through hole, make foam-type resin slurry fills extremely from via top 2-5cm place after coagulation, the foam-type resin slurry upper surface after this solidifies uses non-shrink mortar to fill this through hole floating.
2. the method in prolongation according to claim 1 rigid pavement life-span, is characterized in that: the diameter of described through hole is 0.6-3cm.
3. the method in prolongation according to claim 1 rigid pavement life-span, is characterized in that: when the through hole slip casting of described slurry filling machine butt joint both sides, intersect and carry out slip casting successively from the through hole of seam one side to the through hole "the" shape of seam opposite side.
With respect to prior art, the technique effect that the present invention has is:
1) method in prolongation of the present invention rigid pavement life-span, can prevent from causing the pavement joint infiltration phenomenon that roadbed is softening, has extended the life-span of rigid pavement;
2) penetrating power that the present invention adopts is strong, can be full of rapidly gap and change at short notice intensity be similar to the solid-state of concrete structure and have elasticity;
3) foam-type resin slurry of the present invention forms confining bed in the gap of the cement concrete chunk facing of pavement joint both sides and the interface intersection of base course, thereby make vertical, horizontal seam both keep the distortion conformability under variations in temperature, there is again water-proof function;
4) in method of the present invention, use the quantity of foam-type resin slurry few, good economy performance; The method strong adaptability, quick construction simultaneously; The ageing resistace of foam-type resin slurry is strong, after employing the method, without maintenance again, has reduced the maintenance cost in the highway life-span;
5) method of the present invention had both been applicable to newly-built track laying, was applicable to again existing line maintenance.
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 rigid pavement top view when through hole is arranged symmetrically with in the present invention;
Fig. 2 is the view profile of described rigid pavement;
Fig. 3 is the view profile of the rigid pavement after the gap slip casting of described road surface and roadbed;
Fig. 4 be described through hole slip casting and floating after the view profile of rigid pavement;
Rigid pavement top view when Fig. 5 is described through hole quincuncial arrangement.
Detailed description of the invention
Embodiment 1
As shown in Figures 1 and 2, the seam of existing rigid pavement generally presents longitudinally and horizontal both direction, the concrete block 1 of described rigid pavement, concrete block 22, concrete block 33, concrete block 44 are generally layed on smooth roadbed 6, in process of deployment, for the variation of adaptive temperature, generally between above-mentioned each concrete block, form seam; Laying after concrete, between rigid pavement and described roadbed 6, there is fine clearance 7, after raining, rainwater can slowly descend infiltration roadbed along above-mentioned seam and gap, thereby causes that roadbed softens and form above-mentioned various pavement disease.
As shown in Figure 3 and Figure 4, the method in prolongation of the present invention rigid pavement life-span, mainly comprises the following steps:
The seam bilateral symmetry of A, described rigid pavement of having laid is provided with multiple centers of circle from the gap 7 between manhole 5 and this through hole bottom, through described rigid pavement and the road base of seam 2-50cm, the diameter of this through hole is 2-5cm, and the center distance of the adjacent through-holes on the concrete block of described seam the same side is 10-120cm;
B, at through hole, Grouting Pipe is installed at 5 places, utilize slurry filling machine to adopt foam-type resin slurry 8 to intersect and carry out slip casing by pressure to the through hole "the" shape of seam opposite side successively from the through hole of seam one side, when slurry outwards gushes, stop the slip casting of this through hole and carry out slip casting by the next through hole of ordered pair when observing from seam or adjacent through-holes, under pressure, the gap 7 of the through rigid pavement of slurry and roadbed, air therebetween or ponding are discharged, gap 7 between rigid pavement and roadbed is filled between closely knit and bottom, rigid pavement in the certain limit of seam both sides and basic unit and form continuous waterproofing course,
Foam-type resin slurry 8 in C, described gap 7 was through 1-10 minute after coagulation, then utilize slurry filling machine to carry out slip casting to described each through hole 5, make foam-type resin slurry 8 be fills up to the after coagulation from via top 2-5cm place, the foam-type resin slurry upper surface after this solidifies uses non-shrink mortar 9 filling vias floating.
The foam-type resin slurry 8 that the present invention adopts has high osmosis, can be full of rapidly gap 7, fill up all gaps and change at short notice intensity and be similar to the solid-state of concrete structure and there is elasticity, this foam-type resin slurry 8 is at the cement concrete chunk facing of pavement joint both sides and the interior formation confining bed in interface intersection gap 7 of base course, thereby make vertical, horizontal seam both keep the distortion conformability under variations in temperature, there is again water-proof function.Described injecting paste material setting time is short, gain in strength is fast, ageing resistace is strong and without maintenance, intensity and road structure after this foam-type resin slurry 8 solidifies adapt, and can strengthen concrete road surface structure; In the method, use the quantity of foam-type resin slurry 8 few, good economy performance, simultaneously specific aim and strong adaptability, quick construction.Method of the present invention adopted while both having can be used for newly-built track laying concrete, was applicable to again existing line maintenance, can effectively improve the maintenance quality of highway, extended the application life of highway, reduced the life cycle management maintenance cost of highway.
Embodiment 2
The present embodiment is with respect to the difference of embodiment 1: as shown in Figure 5, the both sides quincunx of described rigid pavement seam is arranged described through hole 205, thereby the through hole interval of seam both sides is arranged, and has reduced the quantity of through hole 205.
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 (3)
1. extend the method in rigid pavement life-span, it comprise including of laying multiple concrete blocks and this concrete block between the rigid pavement of seam, it is characterized in that comprising the steps:
The seam both sides of A, described rigid pavement of having laid are respectively equipped with multiple centers of circle from the gap (7) between manhole (5) and this through hole bottom, through described rigid pavement and the road base of seam 2-50cm, and the center distance of the adjacent through-holes on the concrete block of described seam the same side is 10-120cm;
B, locate to install Grouting Pipe at through hole (5), utilize slurry filling machine to adopt foam-type resin slurry (8) successively the through hole of these seam both sides to be carried out to slip casing by pressure, when observing when slurry outwards gushes and stop the slip casting of this through hole and next through hole is carried out to slip casting from seam or adjacent through-holes, under pressure, the gap (7) of the through rigid pavement of slurry and roadbed, air therebetween or ponding are discharged, make the gap between rigid pavement and the roadbed of seam both sides be full of slurry;
C, described injection gap (7) foam-type resin slurry (8) through 1-10 minute after coagulation, then utilize slurry filling machine to carry out slip casting to described each through hole (5), make foam-type resin slurry (8) be fills up to the after coagulation from via top 2-5cm place, the foam-type resin slurry upper surface after this solidifies uses non-shrink mortar (9) to fill this through hole floating.
2. the method in prolongation according to claim 1 rigid pavement life-span, is characterized in that: the diameter of described through hole (5) is 0.6-3cm.
3. the method in prolongation according to claim 1 rigid pavement life-span, it is characterized in that: when through hole (5) slip casting of described slurry filling machine butt joint both sides, intersect and carry out slip casting to the through hole "the" shape of seam opposite side successively from the through hole of seam one side, or carry out slip casting successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310636872.2A CN104032641A (en) | 2014-01-10 | 2014-01-10 | Method for prolonging service life of concrete pavement |
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| CN201310636872.2A CN104032641A (en) | 2014-01-10 | 2014-01-10 | Method for prolonging service life of concrete pavement |
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| CN104032641A true CN104032641A (en) | 2014-09-10 |
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| CN201310636872.2A Pending CN104032641A (en) | 2014-01-10 | 2014-01-10 | Method for prolonging service life of concrete pavement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110168217A (en) * | 2016-09-15 | 2019-08-23 | 维斯塔斯风力系统有限公司 | The method that tip extension is attached to wind turbine blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110168217A (en) * | 2016-09-15 | 2019-08-23 | 维斯塔斯风力系统有限公司 | The method that tip extension is attached to wind turbine blade |
| US10927809B2 (en) | 2016-09-15 | 2021-02-23 | Vestas Wind Systems A/S | Method of attaching a tip extension to a wind turbine blade |
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Application publication date: 20140910 |
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