CN205557233U - Cement concrete pavement structure of board at bottom of coming to nothing is handled through grout - Google Patents
Cement concrete pavement structure of board at bottom of coming to nothing is handled through grout Download PDFInfo
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- CN205557233U CN205557233U CN201620040359.6U CN201620040359U CN205557233U CN 205557233 U CN205557233 U CN 205557233U CN 201620040359 U CN201620040359 U CN 201620040359U CN 205557233 U CN205557233 U CN 205557233U
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- cement concrete
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- concrete pavement
- grouting
- injected hole
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Abstract
The utility model discloses a cement concrete pavement structure of board at bottom of coming to nothing is handled through grout, there is the cement concrete pavement sheet layer of injected hole to restore district composite of fields grouting layer with being located to come to nothing including distributing, compound grouting layer is bilayer structure, the utility model discloses a cement concrete pavement structure of board at bottom of coming to nothing is handled through grout through special grouting layer structure, improves grouting layer's whole toughness and crack resistance, and the emaciated face of satisfying the need vacancy is effectual fills and the reinforcement, plays the effect that combines road surface and basic unit and makes it to become whole, effectually plays waterproof infiltration effect, can provide long -term durable even supporting to cement concrete pavement's plate body, the life on improvement road surface.
Description
Technical field
This utility model relates to a kind of repaired pavement structure, particularly to a kind of cement concrete pavement structure through grouting treatment plat-bottom escape.
Background technology
The grouting material being currently used for administering cement road surface plate bottom empty is various in style, uneven, grouting effect is not fine, a lot of road decks occurred again coming to nothing or the situation of panel breaking in after filling period duration 2,3 years, not only waste substantial amounts of human and material resources, and it is likely to result in the further destruction on road surface, cement panel easily produces new crack, expand old crack, Pavement Condition declines until destroying rapidly, highly impact the serviceability of road, lose the life-span of cement concrete pavement, cause huge economic loss.
The space pattern in plat-bottom escape region is complicated, exists with a kind of random polymorphic structure after grouting material hardening between panel and basic unit, and stress concentration effect is obvious.Simultaneously, the residual attachment of the dirt such as purt mud, purt slurry in district's forming process of coming to nothing, can interfacial adhesion between appreciable impact grouting material and levels, under the long term of temperature and load, it is necessary to consider the ability that thin layer grouting body works alone with the form that separates with levels.In this condition, grout blanket stress is unfavorable, fracture easily occurs and then seriously crushes, after rainwater enters at Under Dynamic Load under easily again wash away come to nothing (secondary comes to nothing), make panel again be in the unfavoured state come to nothing.Therefore, for this angle, cement mortar class grouting material, in addition to must possessing the basic demand such as the good fluidity of existing specification proposition, early anti pressured intension height, must also possess superperformance in terms of the mechanical index such as toughness, cracking resistance (including plastic shrinkage cracking resistance).If additionally, the plastic shrinkage of grouting material, drying shrinkage are relatively big, also easily cause the secondary at the bottom of plate and come to nothing phenomenon, therefore the material that resisted shrinkage ability is good should be selected.
In sum, in order to reach the most durable plat-bottom escape regulation effect, the most durable uniformly supporting is provided to the plate body of cement concrete pavement, this will propose higher requirement to the physical and mechanical property of grouting material so that it has good toughness, cracking resistance and resisted shrinkage ability.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of cement concrete pavement structure through grouting treatment plat-bottom escape, by special grout blanket structure, improve overall flexibility and the crack resistance of grout blanket, road pavement is come to nothing and is located effectively to be filled with and reinforcement, makes overall, effectively plays and prevents oozing effect under water, and reduce and even eliminate secondary and come to nothing risk, improve the service life on road surface.
Cement concrete pavement structure through grouting treatment plat-bottom escape of the present utility model, including the Cement Concrete Pavement Slab layer of injected hole being distributed and being positioned at the compound grouting layer of the restoring area that comes to nothing, described compound grouting layer is double-decker；
Further, the two-layer of described compound grouting layer is different material layer；
Further, described compound grouting layer is made up of PP fiber reinforced cement slurry upper strata and light water mud lower floor；
Further, described panel layer is distributed injected hole, and described injected hole penetration surface flaggy also runs through basic unit；
Further, described panel layer is uncracked integral slab, and injected hole is distributed along panel layer is overall in plum blossom-shaped, and the injected hole distance away from face plate edge is to arrange not less than 500mm；
Further, described panel layer is slit plate, and injected hole is distributed in four limits of panel layer and arranges with away from edges of boards edge 500mm；
Further, the crack periphery at slit plate is distributed injected hole, and described injected hole is arranged more than 300mm with crack distance；
Further, described injected hole high-strength mortar sealing of hole is floating.
The beneficial effects of the utility model: the cement concrete pavement structure through grouting treatment plat-bottom escape of the present utility model, the understructure of compound grouting layer for carrying out reinforcement (subsurface material good fluidity to the structure below basic unit and basic unit, penetration is strong, intensity is enough, effect is that space is filled, crack is repaired, materials reinforcing etc., ensure the bearing capacity of infrastructure), for the space of coming to nothing filling between panel and basic unit, (upper layer of material hardening process has certain micro-expansibility to superstructure, resisted shrinkage performance after hardening is good, antiseepage, cracking resistance, toughness, resistant to breakage performance is strong, ensure that interlayer come to nothing process durability), panel is made to obtain uniformly, lasting is effectively supporting.
By special grout blanket structure, improve overall flexibility and the crack resistance of grout blanket, road pavement is come to nothing and gap is effectively filled with and reinforcement, recover function and the road surface globality of road surface each structure interlayer, effectively play and prevent oozing effect under water, the plate body of cement concrete pavement can be provided the most durable uniform supporting, improve the service life on road surface.
Accompanying drawing explanation
With embodiment, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2, Fig. 3, Fig. 4 are the planar structure schematic diagram of Cement Concrete Pavement Slab layer.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, and Fig. 2, Fig. 3, Fig. 4 are the planar structure schematic diagram of Cement Concrete Pavement Slab layer；As shown in the figure: the cement concrete pavement structure through grouting treatment plat-bottom escape of the present utility model, including the Cement Concrete Pavement Slab layer 1 of injected hole 4 being distributed and being positioned at the compound grouting layer 2 of the restoring area that comes to nothing, described compound grouting layer 2 is double-decker；Compound grouting layer 2 is the double-decker that material is different, compound grouting layer 2 is by first grouting behind shaft or drift lining global formation, grouting material employing mobility near basic unit 3 is relatively big, the grouting material of good penetrability forms structure sheaf by slip casting, improve overall flexibility and the crack resistance of grout blanket, enable the uniform supporting that the plate body to cement concrete pavement provides the most durable.
In the present embodiment, the two-layer of described compound grouting layer is different material layer；By using the double-layer structure layer of different materials, improve underlying strength, improve bond strength between layers, improve the service behaviours such as the punishment cracking resistance of layer, toughness of coming to nothing, and then improve integrally-built bearing capacity.
In the present embodiment, described compound grouting layer 2 is made up of PP fiber reinforced cement slurry upper strata 21 and light water mud lower floor 22, and the polypropylene fibre of described PP fiber reinforced cement slurry is 9mm；Use the grout blanket of two-layer different materials, light water mud lower floor 22 is near basic unit 3, in order to reinforcement infrastructure and offer and the adhesive surface on upper strata, and PP fiber reinforced cement slurry is more preferable for the grout blanket effect of shallow-layer grouting formation, high with the adhesion strength of panel layer 1 and lower floor's micro-expansion cement slurry, be combined with lower floor and improve the resistance to compression of grout blanket, bending tensile strength on the whole, and can play toughness reinforcing, resistance is split, impervious effect, thus improves the impact resistance of pavement structure, crack resistance, impermeability and frost resistance etc. on the whole.
In the present embodiment, described injected hole 4 penetration surface flaggy 1 also runs through basic unit 3；And grouting post-grouting layer and basic unit 3 and the adhesion strength of panel layer 1 and firmness, it is ensured that grouting effect, grout hole size should be in the same size with filling nozzle.
In the present embodiment, described panel layer 1 is uncracked integral slab, and injected hole 4 is plum blossom-shaped distribution along panel layer 1 entirety, and the injected hole 4 distance away from face plate edge is to arrange not less than 500mm；Described panel layer 1 is slit plate, and injected hole 4 is distributed in four limits of panel layer 1 and arranges with away from edges of boards edge 500mm；Crack periphery at slit plate is distributed injected hole 4, and described injected hole 4 is arranged more than 300mm with crack distance；By plum blossom-shaped cloth hole when panel does not ftracture, the number concrete condition concrete analysis in hole, generally 5, the position of normal condition lower opening is not less than 500mm far from corner.Respectively increase by 1～2 holes in breaking joint both sides to there being a small amount of plate ruptured.Arrangement of boring holes is on four limits of plate, preferably away from each 500mm of edges of boards, avoids in cloth hole, plate middle position as far as possible.Slit plate considers in crack periphery cloth hole, with crack distance more than 300mm.
In the present embodiment, described injected hole 4 backfills sealing of hole with cement mortar, and described cement is identical with the cement grade of panel layer 1.
Finally illustrate is, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from objective and the scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.
Claims (8)
1. the cement concrete pavement structure through grouting treatment plat-bottom escape, it is characterised in that: include point
It is furnished with the Cement Concrete Pavement Slab layer of injected hole and is positioned at the compound grouting layer of the restoring area that comes to nothing, described multiple
Conjunction grout blanket is double-decker.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 1, it is special
Levy and be: the two-layer of described compound grouting layer is different material layer.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 2, it is special
Levy and be: described compound grouting layer is made up of PP fiber reinforced cement slurry upper strata and light water mud lower floor.
4. according to the cement concrete through grouting treatment plat-bottom escape described in claim 1-3 any claim
Pavement structure, it is characterised in that: described panel layer is distributed injected hole, and described injected hole penetration surface flaggy is also
Run through basic unit.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 1, it is special
Levying and be: described panel layer is uncracked integral slab, injected hole is distributed along panel layer is overall in plum blossom-shaped,
The injected hole distance away from face plate edge is to arrange not less than 500mm.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 1, it is special
Levying and be: described panel layer is slit plate, injected hole is distributed in four limits of panel layer and away from edges of boards edge 500mm
Arrange.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 6, it is special
Levy and be: the crack periphery at slit plate is distributed injected hole, and described injected hole and crack distance are more than 300mm
Arrange.
Cement concrete pavement structure through grouting treatment plat-bottom escape the most according to claim 7, it is special
Levy and be: described injected hole high-strength mortar sealing of hole is floating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040359.6U CN205557233U (en) | 2016-01-17 | 2016-01-17 | Cement concrete pavement structure of board at bottom of coming to nothing is handled through grout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040359.6U CN205557233U (en) | 2016-01-17 | 2016-01-17 | Cement concrete pavement structure of board at bottom of coming to nothing is handled through grout |
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| Publication Number | Publication Date |
|---|---|
| CN205557233U true CN205557233U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620040359.6U Expired - Fee Related CN205557233U (en) | 2016-01-17 | 2016-01-17 | Cement concrete pavement structure of board at bottom of coming to nothing is handled through grout |
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| Country | Link |
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| CN (1) | CN205557233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812119A (en) * | 2017-03-10 | 2017-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Gasbag-type automatic safety device and its method for designing that face-plate of rockfill dam comes to nothing |
| CN111737807A (en) * | 2020-07-02 | 2020-10-02 | 清华大学 | Determination method for bearing capacity of angle steel connecting piece considering concrete void |
-
2016
- 2016-01-17 CN CN201620040359.6U patent/CN205557233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812119A (en) * | 2017-03-10 | 2017-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Gasbag-type automatic safety device and its method for designing that face-plate of rockfill dam comes to nothing |
| CN111737807A (en) * | 2020-07-02 | 2020-10-02 | 清华大学 | Determination method for bearing capacity of angle steel connecting piece considering concrete void |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20180117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |