CN213328515U - Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city - Google Patents

Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city Download PDF

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Publication number
CN213328515U
CN213328515U CN202021816579.6U CN202021816579U CN213328515U CN 213328515 U CN213328515 U CN 213328515U CN 202021816579 U CN202021816579 U CN 202021816579U CN 213328515 U CN213328515 U CN 213328515U
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China
Prior art keywords
expansion joint
life
rigid
concrete
sponge city
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CN202021816579.6U
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程小亮
张号军
赵宇
赵乾文
王阳
王兆宇
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Wisdri Engineering and Research Incorporation Ltd
Wisdri Urban Construction Engineering Technology Co Ltd
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Wisdri Engineering and Research Incorporation Ltd
Wisdri Urban Construction Engineering Technology Co Ltd
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Abstract

The utility model discloses a hard and soft compound long-life road surface tip processing expansion joint device based on sponge city, include by lower supreme hard and soft compound long-life road surface primary substratum and the combination concrete layer of laying in proper order, be provided with the expansion joint in the combination concrete layer, be provided with in the hard and soft compound long-life road surface primary substratum and hold drainage device, hold drainage device and arrange in the expansion joint below. The utility model discloses it is good, the durability is strong to have drainage performance, can effectively prevent to ooze to road surface basic unit, fully prolongs road life because of the rainwater that the rubber seal area damage leads to under.

Description

Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city
Technical Field
The utility model relates to a road engineering technical field, concretely relates to compound long-life road surface tip processing expansion joint device of rigidity and flexibility based on sponge city.
Background
The CRC + AC rigid-flexible composite long-life pavement is a pavement structure form with good service performance, not only gives full play to the advantages of the continuous reinforced concrete slab in the aspects of bearing capacity, durability, integrity and the like, but also effectively utilizes the advantages of comfortable running and convenient maintenance of an asphalt surface layer, has high integral strength, good driving comfort, long service life and low maintenance cost, and is one of the main structure forms of the pavement with long service life under the current environment and conditions of China.
The CRC + AC rigid-flexible composite long-life pavement has the advantages that due to the fact that longitudinal continuous steel bars and transverse contraction joints and expansion joints are not arranged, large horizontal displacement and horizontal thrust force can be accumulated at the end of each section of continuous reinforced concrete slab, and therefore anchoring or telescopic devices must be arranged at the end. The end treatment modes commonly used at present comprise reinforced concrete ground beam anchoring, concrete filling pile anchoring, wide flange I-shaped steel beam and bridge expansion joint hairline seam. The end part processing mode for setting the capillary seam of the bridge expansion joint can adapt to the continuous construction of the slip form paver due to mature technology, and is widely applied in actual engineering.
However, in the end treatment mode of the capillary seam of the bridge expansion joint, the rubber sealing tape is easy to crack and damage, and rainwater seeps downwards along the expansion joint after the rubber sealing tape is damaged. The expansion joint below of the CRC + AC rigid-flexible composite long-life pavement is a road base layer, and once rainwater permeates into the base layer from the expansion joint, the rainwater is damaged. In addition, when the rubber sealing belt is damaged or falls off, sundries such as sand stones leak and are accumulated in the expansion joint, so that the road surface cannot freely stretch and retract, and the expansion joint loses effect.
Disclosure of Invention
The to-be-solved technical problem of the utility model is, to the above-mentioned defect that prior art exists, provide a rigidity and flexibility compound long-life road surface tip processing expansion joint device based on sponge city, it is good, the durability is strong to have drainage performance, can effectively prevent to ooze to road surface basic unit, fully prolongs road life because of the rainwater that the rubber seal area damage leads to under.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the utility model provides a hard and soft compound long-life road surface tip processing expansion joint device based on sponge city, includes by the former basic unit of hard and soft compound long-life road surface and the combination concrete layer of supreme laying in proper order down, is provided with the expansion joint in the combination concrete layer, is provided with in the former basic unit of hard and soft compound long-life road surface and holds drainage device, holds drainage device and arranges in the expansion joint below.
According to the technical scheme, the combined concrete layer comprises an asphalt concrete surface layer and a continuous reinforced concrete slab which are sequentially arranged from top to bottom, and the expansion joint is vertically arranged in the asphalt concrete surface layer and the continuous reinforced concrete slab along the transverse direction.
According to the technical scheme, the steel fiber concrete post-pouring belts are arranged on two sides of the shrinkage joint and embedded in the asphalt concrete surface layer and the continuous reinforced concrete slab.
According to the technical scheme, the steel bars are arranged in the steel fiber concrete post-cast strip, the two side walls of the expansion joint are provided with the expansion joint special-shaped steel plates, and the expansion joint special-shaped steel plates are connected with the steel bars of the steel fiber concrete post-cast strip.
According to the technical scheme, the original base layer of the rigid-flexible composite long-life pavement is the original base layer of the CRC + AC rigid-flexible composite long-life pavement.
According to the technical scheme, the water storage and drainage device comprises the grooves arranged along the length direction of the expansion joint, the grooves are sequentially filled with the permeable concrete upper base layer and the permeable graded broken stone lower base layer from top to bottom, and the permeable pipes are laid in the permeable graded broken stone lower base layer.
According to the technical scheme, the inner side wall and two sides of the groove are paved with anti-seepage geotextile, and the bottom of the anti-seepage geotextile is coated with hot asphalt.
According to the technical scheme, the two sides of the groove are step-shaped.
According to the technical scheme, the expansion joint is filled with the elastic filtering material.
According to the technical scheme, a sealing layer is laid above the elastic filtering material; the sealing layer is arranged at the top of the expansion joint, the elastic filtering material is high-elasticity filtering sponge, and the sealing layer is a rubber sealing tape.
The utility model discloses following beneficial effect has:
the device has good drainage performance and strong durability, can effectively prevent rainwater caused by the damage of the rubber sealing strip from infiltrating into the pavement base, reduces the expansion joint diseases of the rigid-flexible composite long-life pavement, and fully prolongs the service life of the road.
Drawings
FIG. 1 is a plan view of a device for treating expansion joints at the ends of rigid-flexible composite long-life pavement based on sponge cities in the embodiment of the utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
in the drawings, 1-continuous reinforced concrete panel; 2-asphalt concrete surface course; 3-post-pouring the steel fiber concrete strip; 4-expansion joint special-shaped steel plates; 5-rubber sealing tape; 6-embedding reinforcing steel bars; 7-water-permeable graded broken stone lower base layer; 8-permeable concrete upper base layer; 9-impermeable geotextile; 10-CRC + AC rigid-flexible composite long-life original pavement base; 11-flexible permeable pipe; 12-high elastic filtering sponge, 13-expansion joint and 14-gutter inlet.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1-3, the utility model provides an in the embodiment based on the compound long-life road surface tip processing expansion joint device of rigid-flexible in sponge city, include by lower supreme compound long-life road surface primary substratum and the combination concrete layer of laying in proper order rigid-flexible, be provided with expansion joint 13 in the combination concrete layer, be provided with in the compound long-life road surface primary substratum of rigid-flexible and hold drainage device, hold drainage device and arrange in expansion joint 13 below.
Further, the combined concrete layer comprises an asphalt concrete surface layer 2 and a continuous reinforced concrete slab 1 which are sequentially arranged from top to bottom, and the expansion joint 13 is transversely and vertically arranged in the asphalt concrete surface layer 2 and the continuous reinforced concrete slab 1 along the road.
Further, the upper end of the expansion joint 13 is communicated with the road pavement and is flush with the road pavement.
Further, the steel fiber concrete post-pouring belt 3 is arranged on two sides of the expansion joint 13, and the steel fiber concrete post-pouring belt 3 is embedded in the asphalt concrete surface layer 2 and the continuous reinforced concrete slab 1.
Furthermore, steel bars are arranged in the steel fiber concrete post-cast strip 3, expansion joint special-shaped steel plates 4 are arranged on two side walls of the expansion joint 13, and the expansion joint special-shaped steel plates 4 are welded with the steel bars of the steel fiber concrete post-cast strip 3.
Further, the steel reinforcement of the steel fiber concrete is connected with the steel reinforcement in the continuous reinforced concrete slab 1.
Further, the original base layer of the rigid-flexible composite long-life pavement is a CRC + AC rigid-flexible composite long-life original base layer 10 of the pavement.
Further, hold drainage device including the recess of following expansion joint 13 length direction and arranging, the recess is arranged under expansion joint 13, and it has permeable concrete upper basal layer 8 and permeable graded rubble lower basal layer 7 to fill in proper order from top to bottom in the recess, and the soft pipe 11 that permeates water has been laid in the permeable graded rubble lower basal layer 7.
Furthermore, impermeable geotextiles 9 are laid on the inner side wall and two sides of the groove.
Further, the impermeable geotextile 9 is primed with hot asphalt.
Further, both sides of the groove are stepped.
Further, the expansion joint 13 is filled with an elastic filter material.
Furthermore, a sealing layer is laid above the elastic filtering material; the sealing layer is arranged at the top of the expansion joint 13, the elastic filtering material is high-elasticity filtering sponge 12, and the sealing layer is a rubber sealing strip 5.
Further, the sponge and the groove filled with the permeable concrete upper base layer 8 and the permeable graded broken stone lower base layer 7 form a sponge water storage and drainage device together.
Furthermore, the two sides of the road are provided with a rainwater inlet 14, and the groove is communicated with a rainwater well of the rainwater inlet 14.
CRC is short for continuouslly Reinforced Concrete, and AC is short for Asphal Concrete, and is Asphalt Concrete.
The utility model discloses a theory of operation:
the utility model discloses a compound long-life road surface tip processing expansion joint device of CRC + AC rigid-flexible based on sponge city is realized by following structure: a rubber sealing strip 5 is arranged at the top of the expansion joint, and a high-elasticity filtering sponge 12 is filled in the middle of the expansion joint; arranging a permeable concrete upper base layer 8 and a permeable graded broken stone lower base layer 7 with a certain width below the position of the continuous reinforced concrete expansion joint, and performing lap joint on the base layer of the original CRC + AC rigid-flexible composite long-life pavement; a soft permeable pipe 11 along the direction of the expansion joint is arranged in the permeable graded broken stone lower base layer 7, and water seeping downwards in the expansion joint is finally discharged into a rainwater system through the soft permeable pipe 11; the upper permeable concrete base layer 8 and the lower permeable graded broken stone base layer 7 are wrapped with a layer of impermeable geotextile 9 coated with hot asphalt.
After the base construction of the continuous reinforced concrete and asphalt concrete composite pavement is completed, steps are excavated on an original base layer 10 corresponding to the position of an expansion joint along the width direction of the road, asphalt is sprayed on the surface, impermeable geotextile 9 is laid, a permeable graded macadam lower base layer 7 is laid, a soft permeable pipe 11 is buried, and a permeable concrete upper base layer 8 is laid. When the continuous reinforced concrete slab 1 is poured, the embedded steel bars 6 of the expansion joints need to be erected in advance, and after the continuous reinforced concrete slab 1 is cured, the asphalt concrete surface layer 2 is paved in layers. When the expansion joint is installed, the asphalt concrete surface layer 2 with the width of 30cm and part of continuous reinforced concrete on the two sides of the expansion joint are chiseled off, then the expansion joint special-shaped steel plate 4 and the associated expansion joint embedded steel bar 6 are welded together, and then the steel fiber concrete post-cast strip 3 is poured. After the expansion joint is stably installed, the side wall of the concrete is cleaned by a steel brush, a high-elasticity filtering sponge 12 is plugged in the concrete, and finally a rubber sealing belt 5 is installed. Accomplish through above step the utility model discloses expansion joint device is handled to compound long-life road surface tip of CRC + AC rigid-flexible based on sponge city.
In summary, (1) the rubber sealing strip is arranged at the top of the expansion joint, and the expansion joint is filled with the high-elasticity filtering sponge 12, so that the expansion joint is sealed and waterproof under the condition that the rubber sealing strip is not damaged. Once the rubber sealing strip is damaged, the utility model can store water and discharge into a rainwater system through sponge urban facilities such as the high-elasticity filtering sponge 12, the permeable concrete upper base layer 8, the permeable graded broken stone lower base layer 7, the soft permeable pipe and the like, and meanwhile, the high-elasticity filtering sponge 12 has strong flexibility, so that sundries such as sand stones and the like can be effectively prevented from leaking and accumulating in the expansion joint to cause the expansion joint to lose effect, the high-elasticity filtering sponge 12 can be replaced regularly, the base material is prevented from being blocked, and the smooth drainage of the expansion joint sponge urban facilities is ensured; (2) a permeable concrete upper base layer 8 and a permeable graded broken stone lower base layer 7 are arranged below the expansion joint, the strength of the base layer is similar to that of the original CRC + AC rigid-flexible composite long-life pavement base layer, and meanwhile, the base layers are lapped to prevent the base layer from generating uneven settlement; (3) a soft permeable pipe along the direction of the expansion joint is arranged in the permeable graded broken stone lower base layer 7, water seeped downwards in the expansion joint is finally discharged to a rainwater port 14 through the soft permeable pipe and then discharged to a rainwater system, and the arrangement of the soft permeable pipe ensures the seepage water discharge of the expansion joint system; (4) the permeable concrete upper base layer 8 and the permeable graded broken stone lower base layer 7 are wrapped with a layer of impermeable geotextile 9 coated with hot asphalt, so that the seepage water is prevented from entering the original pavement base layer.
The above is only a preferred embodiment of the present invention, and the scope of the right of the present invention should not be limited by this, so that the equivalent changes made in the claims of the present invention still belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides a hard and soft compound long-life road surface tip processing expansion joint device based on sponge city, its characterized in that includes by the former basic unit of hard and soft compound long-life road surface and the combination concrete layer of supreme laying in proper order down, is provided with the expansion joint in the combination concrete layer, is provided with in the former basic unit of hard and soft compound long-life road surface and holds drainage device, holds drainage device and arranges in the expansion joint below.
2. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 1, wherein the combined concrete layer comprises an asphalt concrete surface layer and a continuous reinforced concrete plate which are sequentially arranged from top to bottom, and the expansion joint is vertically arranged in the asphalt concrete surface layer and the continuous reinforced concrete plate along the transverse direction.
3. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 2, wherein steel fiber concrete post-pouring belts are arranged on two sides of the expansion joint and embedded in the asphalt concrete pavement and the continuous reinforced concrete slab.
4. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 3, wherein steel bars are arranged in the steel fiber concrete post-cast strip, expansion joint profiled steel plates are arranged on two side walls of the expansion joint, and the expansion joint profiled steel plates are connected with the steel bars of the steel fiber concrete post-cast strip.
5. The expansion joint device for treating the rigid-flexible composite long-life pavement end parts based on the sponge city as claimed in claim 1, wherein the rigid-flexible composite long-life pavement original base layer is a CRC + AC rigid-flexible composite long-life pavement original base layer.
6. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 1, wherein the water storage and drainage device comprises a groove arranged along the length direction of the expansion joint, the groove is filled with a permeable concrete upper base layer and a permeable graded broken stone lower base layer from top to bottom in sequence, and a permeable pipe is laid in the permeable graded broken stone lower base layer.
7. The expansion joint device for rigid-flexible composite long-life pavement end treatment based on the sponge city as claimed in claim 6, wherein the inner side wall and two sides of the groove are paved with impermeable geotextile, and the bottom of the impermeable geotextile is coated with hot asphalt.
8. The expansion joint device for treating the rigid-flexible composite long-life pavement end based on the sponge city as claimed in claim 1, wherein two sides of the groove are stepped.
9. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 1, wherein the expansion joint is filled with an elastic filter material.
10. The device for treating the expansion joint at the end part of the rigid-flexible composite long-life pavement based on the sponge city as claimed in claim 9, wherein a sealing layer is laid above the elastic filtering material; the sealing layer is arranged at the top of the expansion joint, the elastic filtering material is sponge, and the sealing layer is a rubber sealing strip.
CN202021816579.6U 2020-08-27 2020-08-27 Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city Active CN213328515U (en)

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Application Number Priority Date Filing Date Title
CN202021816579.6U CN213328515U (en) 2020-08-27 2020-08-27 Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021816579.6U CN213328515U (en) 2020-08-27 2020-08-27 Expansion joint device is handled to compound long-life road surface tip of rigidity softness based on sponge city

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CN213328515U true CN213328515U (en) 2021-06-01

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