CN215518351U - Combined type concrete bridge and tunnel comprehensive waterproof pavement structure - Google Patents
Combined type concrete bridge and tunnel comprehensive waterproof pavement structure Download PDFInfo
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- CN215518351U CN215518351U CN202121465617.2U CN202121465617U CN215518351U CN 215518351 U CN215518351 U CN 215518351U CN 202121465617 U CN202121465617 U CN 202121465617U CN 215518351 U CN215518351 U CN 215518351U
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Abstract
The utility model discloses a combined type concrete bridge and tunnel comprehensive waterproof pavement structure, which comprises: the side direction waterproof layer outside is curb or concrete rail guard, and bridge and tunnel concrete panel waterproof bonding layer sets up the upper strata at the bridge and tunnel concrete panel through throwing the ball processing, bridge and tunnel concrete panel waterproof bonding layer upper strata sets up waterproof high-modulus layer of mating formation, waterproof high-modulus sets up waterproof bonding layer between the layer of mating formation above the waterproof high-modulus layer, set up waterproof ultra-thin wearing layer above the waterproof bonding layer between the layer. Adopt combination formula waterproof construction through the bridge and tunnel, waterproof to the interlayer tie coat waterproof from the structure is mated formation, adopt three-dimensional comprehensive waterproof construction to realize the whole waterproof performance that bridge and tunnel asphalt concrete paved, and whole structure atress of mating formation is reasonable, and the lower floor of mating formation adopts the layer of mating formation of high modulus, and the layer adopts the ultra-thin wearing layer of going up, and the maintenance construction is simple and easy, improves the durability that bridge and tunnel asphalt mated formation layer.
Description
Technical Field
The utility model relates to a bridge deck waterproof pavement structure, in particular to a combined concrete bridge and tunnel comprehensive waterproof pavement structure.
Background
The bridge tunnel is an important component in highway engineering construction, and the service condition of the bridge tunnel pavement has very important influence on the traffic quality of the whole highway. At present, cement concrete bridges and tunnels are generally paved by double-layer asphalt concrete, and the structure of the cement concrete bridges and tunnels is the same as that of the middle and upper layers of a pavement. However, due to the comprehensive effects of structural design, material selection, construction control, vehicles, environment and other factors, the bridge deck pavement still has more diseases such as white spots, pits, ruts, transition and the like, so that the service quality of the bridge deck is reduced, the maintenance cost is increased, and the service life of the bridge structure is possibly even shortened. From the view of a bridge deck pavement system, the service environment of the bridge deck is more severe than that of a road surface, for example, the annual average temperature difference of the bridge deck is larger, the vibration of a bridge body is obvious, and the like; and the bridge and tunnel asphalt pavement is thinner than the asphalt pavement, so the bridge deck pavement is easier to damage.
In recent years, aiming at the problems of bridge deck tunnel pavement water prevention, novel pavement structural forms and new pavement materials are continuously emerged, wherein the novel pavement structural forms comprise double-layer SMA-13 pavements, SUP-20+ SMA-13 pavements and AC-20+ AC-13 pavements, and the waterproof layer generally adopts a waterproof layer scheme of thermal spraying SBS modified asphalt and macadam and the like. However, engineering practice shows that the scheme of the pavement structure and the waterproof layer cannot effectively solve the problem of white spots on pavement, and the pavement structure layer and the waterproof layer have no good waterproof effect. Summarizing the previous bridge and tunnel pavement research, in actual construction, the bridge and tunnel pavement often has floating slurry, cracks or cracks are hidden under the floating slurry, and the durability of the pavement layer on the bridge and tunnel pavement is seriously influenced.
In view of the defects of the existing bridge and tunnel pavement structure in water resistance, the utility model creates a novel combined type concrete bridge and tunnel comprehensive waterproof pavement structure, so that the structure has higher practicability. After continuous research and design, and repeated trial production and improvement, the utility model with practical value is created.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a combined type concrete bridge and tunnel comprehensive waterproof paving structure which is high in waterproof performance and long in service life, is more practical and has industrial utilization value.
The technical scheme is as follows: the utility model provides a combined type concrete bridge and tunnel comprehensive waterproof pavement structure, which comprises: the waterproof ultra-thin wearing layer, the interlayer waterproof bonding layer, the waterproof high-modulus pavement layer, the bridge and tunnel concrete panel waterproof bonding layer, the bridge and tunnel concrete panel, the curb or concrete guard railing and the lateral waterproof layer; the lateral waterproof layer outside is curb or concrete rail guard, and the lateral waterproof layer height highly accords with the pitch layer of mating formation (for waterproof ultra-thin wearing layer, waterproof bonding layer between layer and waterproof high modulus layer sum of mating formation) of concrete panel height, and bridge tunnel concrete panel waterproof bonding layer sets up the upper strata at the bridge tunnel concrete panel through throwing the ball processing, bridge tunnel concrete panel waterproof bonding layer upper strata sets up waterproof high modulus layer of mating formation, waterproof high modulus is mated formation and is set up waterproof bonding layer between the layer, set up waterproof ultra-thin wearing layer above the waterproof bonding layer between the layer.
Further, the lateral waterproof layer adopts second-order water-based resin emulsified asphalt, and the spraying amount is 0.5-0.8 kg/m2。
Furthermore, the waterproof bonding layer of the bridge and tunnel concrete panel is made of water-based epoxy asphalt, and the spraying amount is 0.8-1.1 kg/m2。
Furthermore, the waterproof high-modulus pavement layer is made of an EME-14 high-modulus asphalt mixture, the pavement thickness is 7-8 cm, and the design void ratio is 1% -3%.
Furthermore, the interlayer waterproof bonding layer is made of wheel-sticking-free emulsified asphalt, and the spreading amount is 0.3-0.6 kg/m2。
Furthermore, the waterproof ultrathin wearing layer is made of a U-PAVE-10 asphalt mixture, the paving thickness is 2-3 cm, and the designed porosity is 3% -5%.
The asphalt pavement can be widely applied to asphalt surface course pavement of concrete bridges and tunnels.
Has the advantages that:
1. the side waterproof layer is directly sprayed on the side face of the curb stone or the concrete guard rail, the height of the side waterproof layer is consistent with the paving height of the asphalt pavement, the second-order water-based resin emulsified asphalt is constructed at normal temperature, a handheld spray gun can be adopted for construction, the construction is simple and convenient, when the hot-mix asphalt mixture is paved, the second-order water-based resin emulsified asphalt is heated to quickly form bonding strength, a paving layer is directly bonded on the curb stone or the concrete guard rail on the outer side, and a high-strength bonding effect is achieved on the side waterproof layer.
2. The waterproof high-modulus pavement layer is mainly paved on a lower surface layer to play a role of a bearing layer, and the lower surface layer of the pavement is the main bearing layer according to the stress characteristics of the pavement, so that the waterproof high-modulus pavement layer is an EME-14 high-modulus layer, and has good structural waterproof performance mainly due to the fact that the asphalt-stone ratio of the high-modulus asphalt mixture is high, and the void ratio is low (2% -3%).
3. The waterproof bonding layer is mainly paved between the high modulus layer and the ultrathin wearing layer to play a role in interlayer waterproof bonding, the wheel-bonding-free emulsified asphalt has the characteristics of fast emulsion breaking, construction damage resistance, water resistance, high bonding degree and the like, the asphalt mixture is prevented from being damaged by the tires of construction vehicles when paved, and the interlayer waterproof effect of the pavement is enhanced.
4. The waterproof ultrathin wearing layer is arranged as the upper layer of the pavement, plays roles of water resistance, skid resistance and abrasion resistance, is designed by adopting continuous grading, has a design porosity of 3% -5%, and has the advantages of enhancing the water resistance of the pavement surface, facilitating later maintenance and repair and reducing later maintenance cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
Example 1
The waterproof structure of mating formation is synthesized to combination formula concrete bridge tunnel of this embodiment is applied to certain highway concrete bridge deck pavement construction. The waterproof paving structure is as follows:
the lateral waterproof layer 7 adopts second-order water-based resin emulsified asphalt with the spreading amount of 0.7kg/m2Sprinkling flowerThe cloth height is 10 cm; the bridge and tunnel concrete panel 5 is shot-blasted, the waterproof bonding layer 4 of the bridge and tunnel concrete panel is made of water-based epoxy asphalt, and the spraying amount is 0.9kg/m2(ii) a The waterproof high-modulus pavement layer 3 adopts EME-14, the pavement thickness is 7.5cm, and the design void ratio is 2%; the interlayer waterproof bonding layer 2 adopts non-stick wheel emulsified asphalt with the spreading amount of 0.4kg/m2(ii) a The waterproof ultrathin wearing layer 1 adopts U-PAVE-10, the paving thickness is 2.5cm, and the design void ratio is 4%; the lateral waterproof layer 7 adopts second-order water-based resin emulsified asphalt with the spreading amount of 0.7kg/m2The spraying height is 10 cm; and a concrete guard rail is arranged on the outer side 7 of the lateral waterproof layer.
Example 2
The bridge deck pavement composite waterproof structure of the embodiment is applied to pavement of a certain tunnel.
The lateral waterproof layer 7 adopts second-order water-based resin emulsified asphalt with the spreading amount of 0.8kg/m2The spraying height is 10 cm; the bridge and tunnel concrete panel 5 is shot-blasted, the waterproof bonding layer 4 of the bridge and tunnel concrete panel is made of water-based epoxy asphalt, and the spraying amount is 1.0kg/m2(ii) a The waterproof high-modulus pavement layer 3 adopts EME-14, the pavement thickness is 8cm, and the design void ratio is 2.5%; the interlayer waterproof bonding layer 2 adopts non-stick wheel emulsified asphalt with the spreading amount of 0.5kg/m2(ii) a The waterproof ultrathin wearing layer 1 adopts U-PAVE-10, the paving thickness is 2.0cm, and the design void ratio is 3.5%; and the outer side of the lateral waterproof layer 7 is provided with a curb stone.
Example 3
The bridge deck pavement composite waterproof structure is applied to pavement of a certain viaduct.
The lateral waterproof layer 7 adopts second-order water-based resin emulsified asphalt with the spreading amount of 0.6kg/m2The spraying height is 10 cm; the bridge and tunnel concrete panel 5 is shot-blasted, the waterproof bonding layer 4 of the bridge and tunnel concrete panel is made of water-based epoxy asphalt, and the spraying amount is 1.1kg/m2(ii) a The waterproof high-modulus pavement layer 3 adopts EME-14, the pavement thickness is 7cm, and the design void ratio is 2.5%; the interlayer waterproof bonding layer 2 adopts non-stick wheel emulsified asphalt with the spreading amount of 0.4kg/m2(ii) a The waterproof ultrathin wearing layer 1 adopts U-PAVE-10, the paving thickness is 3.0cm, and the design void ratio is 4%; and the outer side of the lateral waterproof layer 7 is provided with a curb stone.
By combining the structures of the embodiments 1 to 3, the combined type concrete bridge and tunnel comprehensive waterproof pavement structure disclosed by the utility model has the advantages of simple construction, convenience in operation and strong waterproofness, rainwater is difficult to permeate into the inside and the side surface of the bridge deck pavement structure, and the bridge deck pavement quality can be well ensured.
Claims (6)
1. The utility model provides a waterproof structure of mating formation is synthesized to modular concrete bridge tunnel, its characterized in that: the method comprises the following steps: the waterproof high-modulus pavement structure comprises a waterproof ultrathin wearing layer (1), an interlayer waterproof bonding layer (2), a waterproof high-modulus pavement layer (3), a bridge and tunnel concrete panel waterproof bonding layer (4), a bridge and tunnel concrete panel (5), a curb or concrete guard rail (6) and a lateral waterproof layer (7); lateral waterproof layer (7) outside is curb or concrete rail guard (6), and lateral waterproof layer (7) highly is unanimous with the pitch layer height of mating formation of concrete panel, and bridge and tunnel concrete panel waterproof bonding layer (4) set up the upper strata in bridge and tunnel concrete panel (5) through throwing the ball processing, bridge and tunnel concrete panel waterproof bonding layer (4) upper strata sets up waterproof high modulus layer (3) of mating formation, waterproof high modulus layer (2) between setting up above layer (3) of mating formation, set up waterproof ultra-thin wearing layer (1) above waterproof bonding layer (2) between the layer.
2. The waterproof pavement structure is synthesized to combination formula concrete bridge tunnel according to claim 1, its characterized in that: the lateral waterproof layer (7) adopts second-order water-based resin emulsified asphalt.
3. The waterproof pavement structure is synthesized to combination formula concrete bridge tunnel according to claim 1, its characterized in that: the waterproof bonding layer (4) of the bridge and tunnel concrete panel is made of water-based epoxy asphalt.
4. The waterproof pavement structure is synthesized to combination formula concrete bridge tunnel according to claim 1, its characterized in that: the waterproof high-modulus pavement layer (3) is made of an EME-14 high-modulus asphalt mixture.
5. The waterproof pavement structure is synthesized to combination formula concrete bridge tunnel according to claim 1, its characterized in that: the interlayer waterproof bonding layer (2) is made of wheel sticking-free emulsified asphalt.
6. The waterproof pavement structure is synthesized to combination formula concrete bridge tunnel according to claim 1, its characterized in that: the waterproof ultrathin wearing layer (1) adopts a U-PAVE-10 asphalt mixture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855607A (en) * | 2022-05-06 | 2022-08-05 | 山东高速股份有限公司 | Asphalt pavement structure of cement concrete bridge deck and pavement construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855607A (en) * | 2022-05-06 | 2022-08-05 | 山东高速股份有限公司 | Asphalt pavement structure of cement concrete bridge deck and pavement construction method |
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