CN114232407A - Pavement structure with water-stable base layer and construction process thereof - Google Patents
Pavement structure with water-stable base layer and construction process thereof Download PDFInfo
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- CN114232407A CN114232407A CN202111532162.6A CN202111532162A CN114232407A CN 114232407 A CN114232407 A CN 114232407A CN 202111532162 A CN202111532162 A CN 202111532162A CN 114232407 A CN114232407 A CN 114232407A
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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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
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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
- E01C11/16—Reinforcements
- E01C11/165—Reinforcements particularly for bituminous or rubber- or plastic-bound pavings
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4806—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing
- E01C19/4826—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing the materials being aggregate mixed with binders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Road Paving Structures (AREA)
Abstract
The utility model relates to a road surface structure with steady basic unit of water, relate to the field of road construction, it from down and including plain soil layer in proper order, the bed course, steady basic unit of water and pitch surface course, the top surface of steady basic unit of water is provided with the decompression arch, the protruding and steady basic unit body coupling of water of decompression, and length direction is the same with the length direction of the steady basic unit of water, the protruding width direction who follows the steady basic unit of water of decompression is provided with a plurality of, the protruding cross-section along length direction of decompression is triangle-shaped, be provided with the decompression reinforcing bar between two adjacent decompression archs, the bellied length direction of decompression reinforcing bar along decompression is provided with a plurality of, decompression reinforcing bar middle part is crooked, one side that one of them decompression arch is close to the decompression reinforcing bar is inserted to the one end of decompression reinforcing bar, the other end of decompression reinforcing bar is inserted and is established one side that another decompression arch is close to the decompression reinforcing bar. The application also relates to a construction process of the pavement structure. This application has the effect that makes the difficult emergence settlement phenomenon in road surface.
Description
Technical Field
The application relates to the field of road construction, in particular to a pavement structure with a water-stable base layer and a construction process thereof.
Background
Road construction is an important foundation for urban development and is also the foundation of national economic construction. At present, road construction mainly comprises a cement road surface and an asphalt road surface, and the asphalt road surface is increasingly used due to high-temperature stability, low-temperature crack resistance and water stability of the asphalt road surface.
Asphalt pavement is generally divided into four layers, the bottom layer is a roadbed compacted with plain soil, the layer on the roadbed is a cushion layer laid with graded broken stones or gravel, the layer on the cushion layer is a cement stabilized macadam-laid cement stabilized base layer, and the layer on the cement stabilized base layer is an asphalt or asphalt concrete-laid surface layer. During construction, four layers of the asphalt pavement are paved layer by layer, each layer is repeatedly rolled by a road roller, and vehicles can pass after pavement construction and maintenance are completed.
The large-tonnage trucks usually pass on the asphalt pavement, the trucks are easy to roll the pavement, and the long-term rolling is easy to cause the pavement to subside, so that the operation of the vehicle is not facilitated, and the driving safety of the vehicle is easily influenced.
Disclosure of Invention
In order to prevent the pavement from settling easily, the application provides a pavement structure with a cement stabilized base layer and a construction process thereof.
The application provides a road surface structure with stable basic unit of water and construction process thereof adopts following technical scheme:
in a first aspect, the present application provides a pavement structure with a cement base course, which adopts the following technical scheme:
the utility model provides a road surface structure with steady basic unit of water, from down and including plain soil layer in proper order, the bed course, steady basic unit of water and pitch surface course, the top surface of steady basic unit of water is provided with the decompression arch, the protruding basic unit body coupling of steady basic unit of water of decompression, and length direction is the same with the length direction of steady basic unit of water, the protruding width direction who follows the steady basic unit of water of decompression is provided with a plurality of, the protruding cross-section along length direction of decompression is triangle-shaped, be provided with the decompression reinforcing bar between two adjacent decompression archs, the bellied length direction of decompression reinforcing bar edge decompression is provided with a plurality of, the bending in decompression reinforcing bar middle part, one end of decompression reinforcing bar is inserted and is established one side that one of them decompression arch is close to the decompression reinforcing bar, the other end of decompression reinforcing bar is inserted and is established one side that another decompression arch is close to the decompression reinforcing bar.
By adopting the technical scheme, when a truck passes through the asphalt surface course, the pressure of the truck directly acts on the asphalt surface course, the asphalt surface course transmits the pressure to the cement stabilized base layer, and the triangular decompression bulge is arranged on the cement stabilized base layer, when the pressure of the asphalt surface course is transmitted to the cement stabilized base layer, the pressure firstly acts on the decompression bulge, two side surfaces of the decompression bulge are subjected to vertical downward pressure, the decompression bulge decomposes the vertical downward pressure into the pressure along the side surface of the decompression bulge and the pressure vertical to the side surface of the decompression bulge, the decomposition force on the two side surfaces of the vertical decompression bulge can be decomposed into force in the horizontal direction and force in the vertical direction, so that the decomposition force in the horizontal direction of the decomposition force on one side surface of the decompression bulge is equal to the decomposition force in the horizontal direction of the other side surface and opposite to the decomposition force in the horizontal direction, and the two decomposition forces can be mutually offset, and the decomposition force along the side surface of the decompression bulge can also be decomposed into force in the horizontal direction and force in the vertical direction, in the side where the two adjacent decompression protrusions are close to each other, the horizontal direction decomposition force of one decompression protrusion along the side decomposition force is equal to the horizontal direction decomposition force of the other decompression protrusion along the side decomposition force, and the two decomposition forces are opposite in direction, so that the two decomposition forces can be mutually offset;
when pressure is transmitted to the pressure reducing reinforcing steel bars, the pressure reducing reinforcing steel bars have the tendency of recovering the unbent state, and because the two ends of the pressure reducing reinforcing steel bars are inserted on the pressure reducing bulges, the pressure reducing reinforcing steel bars have the tendency of keeping the bending state through the pressure reducing bulges, so that the reverse action of the pressure reducing bulges on the pressure reducing reinforcing steel bars relieves the pressure applied to the pressure reducing reinforcing steel bars, further reduces the pressure applied to the road surface, and ensures that the road surface is not easy to subside through the pressure reducing bulges and the pressure reducing reinforcing steel bars;
meanwhile, the transverse movement of the asphalt surface layer along the width direction of the asphalt surface layer is limited by the pressure reducing bulges, so that the asphalt surface layer is not easy to split along the width direction of the asphalt surface layer under the action of the pressure reducing bulges, and the crack resistance of the asphalt surface layer along the width direction of the asphalt surface layer is improved.
Optionally, the cement stabilized base layer is provided with a plurality of layers, and the pressure reducing bulges of the two adjacent layers of cement stabilized base layers are arranged in a staggered manner.
Through adopting above-mentioned technical scheme, set up the steady basic unit of multilayer water between pitch surface course and bed course, make the pressure that the pitch surface course received can descend through the steady basic unit successive layer of water and subtract, and the protruding dislocation set of decompression on the steady basic unit of adjacent two-layer water, make vertical decurrent decomposition power that does not offset between two adjacent decompression archs can descend and subtract in the steady basic unit of one deck water next, further make the pressure that the road surface received offset and descend and subtract, thereby further make the difficult emergence settlement phenomenon in road surface.
Optionally, the pressure reducing reinforcing steel bar inserted between two adjacent pressure reducing bulges is in an elastic compression state.
By adopting the technical scheme, because the pressure reducing reinforcing steel bar is in an elastic compression state, the pressure reducing reinforcing steel bar has pre-elasticity, when the road surface is under pressure, the pre-elasticity of the pressure reducing reinforcing steel bar can offset the pressure of part of the road surface, and the pressure reducing capacity of the road surface to the pressure is improved.
Optionally, the pressure reducing protrusions are also integrally arranged along the length direction of the water stabilizing base layer.
Through adopting above-mentioned technical scheme, the decompression arch that sets up along the length direction of the stable basic unit of water can further reduce the pressure that receives on the road surface, has improved the road surface and has reduced the ability to the reduction of pressure to make the road surface further be difficult for taking place to subside the phenomenon, also make the difficult length direction who follows self of pitch surface course take place to separate simultaneously, improved the crack resistance of pitch surface course along self length direction.
Optionally, the two adjacent layers of the water stabilization base layer are arranged in a staggered manner along the pressure reduction protrusion arranged in the length direction.
Through adopting above-mentioned technical scheme, the decompression arch that adjacent two-layer steady basic unit of water length direction set up is the dislocation set for pressure between two adjacent decompression archs that steady basic unit of water length direction set up can fall through the decompression arch that the steady basic unit of lower floor length direction set up and subtract, has further improved the steady basic unit of water and has reduced the reduction of road surface pressure, makes the difficult phenomenon of subsiding that appears in the road surface.
Optionally, the reinforcing steel bars are embedded in the cement stabilized base layer, the reinforcing steel bars are provided with a plurality of reinforcing steel bars along the width direction of the cement stabilized base layer, and the length direction of the reinforcing steel bars is the same as that of the cement stabilized base layer.
Through adopting above-mentioned technical scheme, bury the reinforcing bar underground in the stable basic unit of water, improved the intensity of the stable basic unit of water, improved the crack resistance of the stable basic unit of water to make the difficult split phenomenon that takes place of road surface.
Optionally, adjacent two-layer in the stable basic unit of water, the reinforcing bar that is located upper strata stable basic unit of water and be located the equal fixed connection of a plurality of decompression reinforcing bar that sets up along length direction in the stable basic unit of lower floor's stable basic unit of water.
Through adopting above-mentioned technical scheme, because reinforcing bar and decompression reinforcing bar fixed connection for reinforcing bar is difficult for appearing the displacement phenomenon at the steady basic unit's of water compaction in-process, and road surface pressure passes through reinforcing bar and decompression reinforcing bar fixed connection and easily distributes evenly more, makes the difficult concentrated effect of pressure in the department on road surface, thereby makes the difficult damage that causes the road surface of concentrated pressure.
Optionally, an anti-cracking net is fixedly arranged between the two adjacent reinforcing steel bars.
Through adopting above-mentioned technical scheme, through setting up the crack control net between two adjacent reinforcing bars for the stable base course of water forms a whole, and when the stable base course of water received pressure, the crack control net can make the difficult emergence split of the stable base course of water, has improved the crack resistance of the stable base course of water, and then has improved the crack resistance on road surface.
In a second aspect, the present application provides a construction method for the above road surface structure, which adopts the following technical scheme:
the construction method of the pavement structure comprises the following steps:
compacting the plain soil layer: leveling a soil layer of a road, and then rolling and tamping the soil layer by a road roller to form a plain soil layer;
fixing channel steel: channel steel is fixedly arranged on both sides of the road in the length direction, and the openings of the channel steel face to the sides far away from each other;
pressing a bedding layer: paving a layer of gravel or graded broken stone on the plain soil layer, and then rolling and tamping the gravel or graded broken stone by a road roller to form a cushion layer;
manufacturing a water stable base layer: mixing and stirring cement, fly ash, broken stone and water, pouring the uniformly stirred water-stable mixture between channel steels, flattening the water-stable mixture, covering a pressure-reducing template on the water-stable mixture, directly rolling a road roller on a pressure-reducing template, rolling and tamping the water-stable mixture through the road roller and the pressure-reducing template, and pressing pressure-reducing bulges to manufacture a cement-stable base layer;
maintaining the water-stable base layer: after the cement stabilized base layer is solidified, the cement stabilized base layer is maintained in a watering or water spraying mode;
inserting a pressure reducing steel bar: after the water-stable mixture is compacted and solidified, inserting the bent pressure-reducing reinforcing steel bars on the pressure-reducing bulges;
paving an asphalt surface layer: and pouring asphalt on the water-stable base layer inserted with the pressure-reducing reinforcing steel bars, flattening the asphalt, and rolling and tamping the asphalt by a road roller to form an asphalt surface layer so as to finish the pavement construction.
By adopting the technical scheme, when the pavement is constructed, the plain soil layer of the pavement is leveled, and is compacted by rolling through a road roller; after the plain soil layer is compacted, fixing channel steel to two sides of the length direction of the road surface, then paving gravel or graded broken stones in an area surrounded by the channel steel to form a cushion layer, rolling and flattening the gravel or graded broken stones by a road roller, and compacting, thereby completing the press paving of the cushion layer;
after the cushion layer is compacted, mixing and stirring cement, fly ash, broken stone and water to form a water-stable mixture, then pouring the water-stable mixture on the cushion layer, flattening the water-stable mixture, covering a pressure-reducing template on the flattened water-stable mixture, rolling a road roller on the pressure-reducing template, compacting the water-stable mixture through the road roller and the pressure-reducing template, then watering and maintaining after the water-stable base layer is solidified, and inserting pressure-reducing reinforcing steel bars into pressure-reducing protrusions; after the cement stabilized base course is manufactured, asphalt is paved on the cement stabilized base course, then an asphalt surface layer is rolled and leveled through a road roller and compacted, so that the construction of the road surface is completed, and then the pressure of the road surface is reduced through the pressed pressure reducing bulges and the inserted pressure reducing steel bars.
Optionally, one side of the pressure reducing template, which is close to the water stabilizing mixture, is provided with a pressure reducing groove matched with the pressure reducing protrusion, one side of the side wall of the pressure reducing groove, which is far away from the water stabilizing mixture, is abutted with a pressure plate, one side of the pressure plate, which is close to the water stabilizing mixture, is provided with a plurality of protruding blocks matched with pressure reducing reinforcing steel bars, the protruding blocks penetrate out of the side wall of the pressure reducing groove, and one side of the pressure plate, which is far away from the protruding blocks, is abutted with a compacting plate.
Through adopting above-mentioned technical scheme, the road roller rolls on the compaction board, the compaction board transmits pressure to the clamp plate on, the clamp plate transmits pressure to the decompression template on, it is protruding to suppress the decompression through the decompression groove of decompression template on the steady mixture of water, it is protruding to suppress out the jack on the steady mixture of water through the lug on the clamp plate, after the steady mixture of water solidifies and forms the steady basic unit of water, take out the compaction board earlier, take out the clamp plate again, then take off the decompression template from the steady basic unit of water, thereby the decompression arch and the jack of the steady basic unit of water have been accomplished in the suppression.
In summary, the present application includes at least one of the following beneficial technical effects:
the triangular pressure reducing bulges are arranged on the top surface of the cement stabilized base layer, so that the cement stabilized base layer can reduce the pressure on the road surface through the pressure reducing bulges, and the road surface is not easy to settle;
by inserting the pressure reducing reinforcing steel bars between the two adjacent pressure reducing bulges, the pressure reducing capacity of the cement stabilized base layer is further improved, and the pavement is further not easy to settle;
the reinforced steel bars and the anti-cracking net are embedded in the cement stabilized base layer, so that the anti-cracking performance of the cement stabilized base layer is improved, and further the anti-cracking performance of the pavement is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is an exploded view of an embodiment of the present application;
FIG. 3 is a cross-sectional view intended to illustrate the inter-fitting relationship of the road surface;
FIG. 4 is an exploded view intended to illustrate a pressure relief template;
figure 5 is an exploded view from another angle intended to illustrate a pressure relief panel.
Description of reference numerals:
1. a plain soil layer; 2. a cushion layer; 3. a water stable base layer; 31. a pressure relief projection; 311. a jack; 32. decompressing the reinforcing steel bar; 33. reinforcing steel bars; 34. a crack control web; 4. an asphalt surface layer; 5. decompressing the template; 51. a pressure reducing tank; 52. pressing a plate; 521. a bump; 53. and (5) compacting the plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses road surface structure with stable basic unit of water.
Referring to fig. 1, the pavement structure with the water stable base layer sequentially comprises a plain soil layer 1, a cushion layer 2, a water stable base layer 3 and an asphalt surface layer 4 from bottom to top, and the top surface of the water stable base layer 3 is provided with a pressure reducing bulge 31. During the use, the freight train is driven on the road surface, transmits pressure to pitch surface course 4, and pitch surface course 4 transmits pressure to the firm basic unit of water 3, and the firm basic unit of water 3 reduces through the protruding 31 of decompression of top surface to the pressure on road surface to make the difficult emergence settlement phenomenon on road surface.
Referring to fig. 2, the water stabilization base layer 3 is provided with a plurality of layers, the pressure reducing protrusions 31 of each layer of the water stabilization base layer 3 are provided with a plurality of protrusions along the width direction and the length direction of the water stabilization base layer 3, and all with the 3 body coupling of the firm basic unit of water, the protruding 31 body coupling of decompression that sets up along the 3 width direction of the firm basic unit of water with the protruding 31 body coupling of decompression that sets up along the 3 length direction of the firm basic unit of water, the length direction of the protruding 31 of decompression that sets up along the 3 width direction of the firm basic unit of water is the same with the length direction of the firm basic unit of water 3, the protruding 31 length direction's of decompression cross-section is triangle-shaped, the protruding 31 of decompression that sets up along width direction on the adjacent two-layer firm basic unit of water 3 is the dislocation set, the protruding 31 of decompression that sets up along length direction on the adjacent two-layer firm basic unit of water 3 is the dislocation set.
During the use, the freight train drives across the road surface, causes pressure to the road surface, and the pressure on road surface transmits a plurality of layers of water stabilization base course 3 through asphalt surface layer 4, and water stabilization base course 3 falls through the protruding 31 of decompression that the top surface an organic whole set up and subtracts pressure for the freight train weakens in water stabilization base course 3 to the pressure on road surface, and then makes the difficult emergence settlement phenomenon on road surface.
Referring to fig. 2 and 3, a plurality of insertion holes 311 are formed in the side, close to each other, of each of two adjacent pressure reducing protrusions 31 arranged in the width direction of the water stabilizing base layer 3, the insertion holes 311 are arranged in the length direction of the pressure reducing protrusions 31, and the length direction of the insertion holes 311 is perpendicular to the side surfaces of the pressure reducing protrusions 31. A plurality of pressure reducing reinforcing steel bars 32 are arranged between two adjacent pressure reducing protrusions 31 arranged along the width direction of the water stabilization base layer 3, the plurality of pressure reducing reinforcing steel bars 32 are arranged along the length direction of the pressure reducing protrusions 31, the middle parts of the pressure reducing reinforcing steel bars 32 are bent, one end of each pressure reducing reinforcing steel bar 32 is inserted into the insertion hole 311 of one pressure reducing protrusion 31, the other end of each pressure reducing reinforcing steel bar 32 is inserted into the insertion hole 311 of the other pressure reducing protrusion 31, and the pressure reducing reinforcing steel bars 32 inserted into the insertion holes 311 are in an elastic compression state.
During the use, because decompression reinforcing bar 32 has elasticity, decompression reinforcing bar 32 is when receiving pressure, and partial pressure can be offset to the elasticity of decompression reinforcing bar 32 self, and decompression reinforcing bar 32 also can fall and reduce partial pressure under the supporting role of decompression arch 31 simultaneously, and then further falls to reduce to the pressure that the road surface received for the road surface is further difficult for taking place the settlement phenomenon.
Referring to fig. 3, reinforcing steel bar 33 has been buried underground in the metastable basic unit 3, reinforcing steel bar 33 is provided with a plurality of along the width direction of the metastable basic unit 3 of hydrology, reinforcing steel bar 33's length direction is the same with the length direction of the metastable basic unit 3 of hydrology, in adjacent two-layer metastable basic unit 3, reinforcing steel bar 33 of the metastable basic unit 3 of upper story is located the top of the pressure reducing steel bar 32 that sets up between two adjacent decompression protrusions 31 of the stable basic unit 3 of lower story hydrology, the top of pressure reducing steel bar 32 is located the bottom of the stable basic unit 3 of upper story hydrostability in 3 of lower story, reinforcing steel bar 33 of the stable basic unit of upper story 3 and the stable basic unit 3 of lower story hydrology are located the equal fixed connection of pressure reducing steel bar 32 between two adjacent decompression protrusions 31. An anti-cracking net 34 is fixedly arranged between two adjacent reinforcing steel bars 33, and the anti-cracking net 34 is embedded in the water-stable base layer 3.
During the use, the pressure that the road surface received the freight train is acted on a plurality of layers of water stabilized base 3, reinforcing bar 33 and anti-cracking net 34 in the water stabilized base 3 have improved the intensity on road surface, make the difficult phenomenon that takes place the split of water stabilized base 3 under the pressure effect, the anti-cracking performance of water stabilized base 3 has been improved, and then the anti-cracking performance on road surface has been improved, simultaneously water stabilized base 3 receives pressure when having the settlement trend, anti-cracking net 34 can hinder the settlement trend of water stabilized base 3, thereby make water stabilized base 3 be difficult for taking place the settlement phenomenon.
The implementation principle of the pavement structure with the water-stable base layer in the embodiment of the application is as follows: during the use, the freight train is gone on bituminous paving, the freight train causes pressure to bituminous paving, bituminous paving transmits pressure to on a plurality of layers of water stabilization base layer 3, the protruding 31 of decompression and the decompression reinforcing bar 32 that set up on the water stabilization base layer 3 drop the pressure and subtract, simultaneously because the protruding 31 of decompression on a plurality of layers of water stabilization base layer 3 is the dislocation set, and then make water stabilization base layer 3 drop the pressure more effectively and subtract, thereby make the pressure that the road surface received realize dropping and subtract, make the difficult emergence settlement phenomenon of road surface.
The embodiment also discloses a construction process of the pavement structure with the water-stable base layer.
Referring to fig. 4 and 5, a construction process of a pavement structure having a water-stable base course includes the steps of:
compacting the plain soil layer 1: leveling a soil layer of a road, and then rolling and tamping the soil layer by a road roller to form a plain soil layer 1;
fixing channel steel: channel steel is fixedly arranged on both sides of the road in the length direction, and the openings of the channel steel face to the sides far away from each other;
and (3) pressing a paving layer 2: paving a layer of gravel or graded broken stone on the plain soil layer 1, and then rolling and tamping the gravel or graded broken stone by a road roller to form a cushion layer 2;
manufacturing the water stabilizing base layer 3: mixing and stirring cement, fly ash, gravel and water, pouring the uniformly stirred water-stable mixture between channel steels, flattening the water-stable mixture, burying reinforcing steel bars 33 and an anti-cracking net 34 in the water-stable mixture, fixedly connecting the reinforcing steel bars 33 with the anti-cracking net 34, covering a pressure reducing template 5 on the water-stable mixture, arranging a pressure reducing groove 51 matched with a pressure reducing bulge 31 on one side of the pressure reducing template 5 close to the water-stable mixture, abutting a pressure plate 52 on one side of the side wall of the pressure reducing groove 51 far away from the water-stable mixture, arranging a plurality of convex blocks 521 matched with the pressure reducing steel bars 32 on one side of the pressure plate 52 close to the water-stable mixture, enabling the convex blocks 521 to penetrate out of the side wall of the pressure reducing groove 51, abutting a compaction plate 53 on one side of the pressure plate 52 far away from the convex blocks 521, directly rolling the compaction plate 53, and compacting the water-stable mixture through a road rolling vehicle and the pressure reducing template 5, and the pressure-reducing projections 31 and the insertion holes 311 are pressed, thereby manufacturing the completed water-stable base layer 3;
and (3) maintenance of the water stabilization base layer: after the cement stabilized base layer 3 is solidified, the cement stabilized base layer 3 is maintained in a watering or water spraying mode;
inserting the pressure reducing reinforcing steel bar 32: after the water-stable mixture is compacted and solidified, the pressure-reducing reinforcing steel bars 32 which are completely bent are inserted into the insertion holes 311 on the side where the two adjacent pressure-reducing protrusions 31 are close to each other;
manufacturing the multilayer water stable base layer 3: continuously pouring a plurality of water stabilization base layers 3 on the solidified water stabilization base layer 3 according to the manufacturing method of the water stabilization base layer 3, arranging the pressure reduction bulges 31 arranged along the length direction and the width direction of the two adjacent water stabilization base layers 3 in a staggered manner, and fixedly connecting the reinforcing steel bars 33 with a plurality of pressure reduction steel bars 32 between the two adjacent pressure reduction bulges 31 on the solidified water stabilization base layer 3 before pouring the water stabilization mixture;
and (3) paving an asphalt surface layer 4: and (3) pouring asphalt on the water-stable base layer 3 inserted with the decompression reinforcing steel bars 32, flattening the asphalt, rolling and tamping the asphalt by a road roller to form an asphalt surface layer 4, and completing the construction of the pavement.
When in construction, the plain soil of the road is leveled, then the plain soil is rolled by a road roller and tamped, so that the plain soil layer 1 is compacted and paved; the channel steel is fixedly arranged on the two sides of the road in the length direction, the opening of the channel steel faces to one side far away from each other, gravel or graded broken stone is paved on the plain soil layer 1, and the gravel or the graded broken stone is rolled by the road roller, so that the gravel or the graded broken stone is compacted, and the pressing and paving of the cushion layer 2 are completed.
After the construction of the cushion layer 2 is completed, the stirred water-stable mixture is poured into an area surrounded by the cushion layer 2 and channel steel, the water-stable mixture is flattened, the steel bars and the anti-cracking net 34 are embedded into the water-stable mixture, then the pressure-reducing template 5 is covered on the water-stable mixture, then the compacting plate 53 is rolled by a road roller, the water-stable mixture is compacted, and the pressure-reducing protrusions 31 and the insertion holes 311 are formed, so that the water-stable base layer 3 is manufactured, after the water-stable base layer 3 is solidified, the water-stable base layer 3 is subjected to watering or water spraying maintenance, and then the pressure-reducing steel bars 32 are inserted.
After the one-layer cement stabilized base layer 3 is manufactured, a plurality of layers of cement stabilized base layers 3 are manufactured in the same direction, and before each layer of cement stabilized base layer 3 is poured, reinforcing steel bars 33 need to be fixedly connected with pressure reducing steel bars 32 on the solidified cement stabilized base layer 3. After the plurality of layers of the cement stabilized base layers 3 are manufactured, asphalt is laid on the cement stabilized base layers 3, then the asphalt is rolled by a road roller and compacted, so that the asphalt surface layers 4 are pressed and laid, and the pavement construction is completed. Through 5 suppression decompression arch 31 of decompression template and socket, improved the manufacturing efficiency of the stable in water basic unit 3, reduce through the reduction of decompression arch 31 and decompression reinforcing bar 32 to road surface pressure for the difficult settlement phenomenon that takes place in road surface.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A pavement structure with a cement stabilized base layer comprises a plain soil layer (1), a cushion layer (2), the cement stabilized base layer (3) and an asphalt surface layer (4) from bottom to top in sequence, and is characterized in that a plurality of pressure reducing bulges (31) are arranged on the top surface of the cement stabilized base layer (3), the pressure reducing bulges (31) are integrally connected with the cement stabilized base layer (3), the length direction of the pressure reducing bulges is the same as the length direction of the cement stabilized base layer (3), the pressure reducing bulges (31) are arranged along the width direction of the cement stabilized base layer (3), the cross sections of the pressure reducing bulges (31) along the length direction are triangular, a pressure reducing steel bar (32) is arranged between two adjacent pressure reducing bulges (31), the pressure reducing steel bar (32) is arranged in a plurality of numbers along the length direction of the pressure reducing bulges (31), the middle part of the pressure reducing steel bar (32) is bent, one end of the pressure reducing steel bar (32) is inserted into one side of one pressure reducing bulge (31) close to the pressure reducing steel bar (32), the other end of the decompression reinforcing steel bar (32) is inserted into one side of the other decompression bulge (31) close to the decompression reinforcing steel bar (32).
2. The pavement structure with a water-stable base layer according to claim 1, characterized in that the water-stable base layer (3) is provided with a plurality of layers, and the pressure reducing bulges (31) of two adjacent layers of water-stable base layers (3) are arranged in a staggered manner.
3. Pavement structure with a water-stable base course according to claim 1, characterized in that the pressure-reducing reinforcing bars (32) interposed between two adjacent pressure-reducing projections (31) are in a state of elastic compression.
4. The pavement structure with a water-stable base course according to claim 1, characterized in that the decompression protrusions (31) are also integrally provided in plural numbers along the length direction of the water-stable base course (3).
5. The pavement structure with a water-stable base course according to claim 4, characterized in that the pressure relief bulges (31) arranged along the length direction of two adjacent water-stable base courses (3) are arranged in a staggered manner.
6. The pavement structure with a water stable base layer according to claim 1, characterized in that reinforcing steel bars (33) are embedded in the water stable base layer (3), a plurality of reinforcing steel bars (33) are arranged along the width direction of the water stable base layer (3), and the length direction of the reinforcing steel bars (33) is the same as the length direction of the water stable base layer (3).
7. The pavement structure with the water-stable base layer according to claim 6, characterized in that, in two adjacent layers of the water-stable base layer (3), the reinforcing steel bars (33) in the upper water-stable base layer (3) are fixedly connected with a plurality of pressure reducing steel bars (32) arranged in the lower water-stable base layer (3) along the length direction.
8. Pavement structure with a water-stable base according to claim 6, characterized in that an anti-cracking net (34) is fixedly arranged between two adjacent reinforcing steel bars (33).
9. A process for the construction of a pavement structure according to any of claims 1 to 8, comprising the following steps:
compacted vegetable soil layer (1): leveling a soil layer of a road, and then rolling and tamping the soil layer by a road roller to form a plain soil layer (1);
fixing channel steel: channel steel is fixedly arranged on both sides of the road in the length direction, and the openings of the channel steel face to the sides far away from each other;
press-laying mat layer (2): paving a layer of gravel or graded broken stone on the plain soil layer (1), and then rolling and tamping the gravel or graded broken stone by a road roller to form a cushion layer (2);
manufacturing the water stable base layer (3): mixing and stirring cement, fly ash, broken stone and water, pouring the uniformly stirred water-stable mixture between channel steels, flattening the water-stable mixture, covering a pressure-reducing template (5) on the water-stable mixture, directly rolling a road roller on the pressure-reducing template (5), rolling and tamping the water-stable mixture through the road roller and the pressure-reducing template (5), and pressing pressure-reducing bulges (31) to manufacture a water-stable base layer (3);
curing the water-stable base layer (3): after the cement stabilized base layer (3) is solidified, the cement stabilized base layer (3) is maintained in a watering or water spraying mode;
inserting a pressure reducing bar (32): after the water-stable mixture is compacted and solidified, the pressure reducing reinforcing steel bars (32) which are bent are inserted on the pressure reducing bulges (31);
paving an asphalt surface layer (4): and (3) pouring asphalt on the water-stable base layer (3) inserted with the decompression reinforcing steel bars (32), flattening the asphalt, and then rolling and tamping the asphalt by a road roller to form an asphalt surface layer (4) so as to finish the pavement construction.
10. The construction process of the pavement structure according to claim 9, wherein a pressure reducing groove (51) matched with the pressure reducing protrusion (31) is formed in one side, close to the water-stable mixture, of the pressure reducing template (5), a pressure plate (52) is abutted to one side, far away from the water-stable mixture, of the side wall of the pressure reducing groove (51), a plurality of protruding blocks (521) matched with the pressure reducing steel bars (32) are arranged on one side, close to the water-stable mixture, of the pressure plate (52), the protruding blocks (521) penetrate through the side wall of the pressure reducing groove (51), and a compaction plate (53) is abutted to one side, far away from the protruding blocks (521), of the pressure plate (52).
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| JPH08128002A (en) * | 1994-10-31 | 1996-05-21 | High Frequency Heattreat Co Ltd | Continuous high strength reinforced rolled concrete pavement structure and its construction method |
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| CN213447912U (en) * | 2020-09-30 | 2021-06-15 | 苏州秀怡园林绿化工程有限公司 | Cement stabilized macadam base road structure |
| CN113026469A (en) * | 2021-03-25 | 2021-06-25 | 义乌浩盛新材料有限公司 | Stress relieving pavement |
| CN113322740A (en) * | 2021-06-25 | 2021-08-31 | 江苏广吴建设园林有限公司 | Reinforced asphalt concrete road and construction method thereof |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128002A (en) * | 1994-10-31 | 1996-05-21 | High Frequency Heattreat Co Ltd | Continuous high strength reinforced rolled concrete pavement structure and its construction method |
| CN207749374U (en) * | 2018-01-03 | 2018-08-21 | 江苏路翔交通工程有限公司 | The steady structure of crack resistance water |
| CN213447912U (en) * | 2020-09-30 | 2021-06-15 | 苏州秀怡园林绿化工程有限公司 | Cement stabilized macadam base road structure |
| CN113026469A (en) * | 2021-03-25 | 2021-06-25 | 义乌浩盛新材料有限公司 | Stress relieving pavement |
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