CN211547327U - Structure for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint - Google Patents
Structure for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint Download PDFInfo
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- CN211547327U CN211547327U CN202020088244.0U CN202020088244U CN211547327U CN 211547327 U CN211547327 U CN 211547327U CN 202020088244 U CN202020088244 U CN 202020088244U CN 211547327 U CN211547327 U CN 211547327U
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Abstract
The utility model discloses an get rid of bridge expansion joint department bituminous paving in situ ponding structure fast, the layer of mating formation of bridge deck includes the layer of mating formation of the pitch on upper strata and the concrete layer of mating formation of lower floor, the expansion joint that is located the bridge fills concrete and the layer juncture of mating formation of bridge deck, along bridge horizontal installation infiltration side pipe in the expansion joint filling concrete, infiltration side pipe is fixed on the support, the support is fixed on the lateral wall on the layer of mating formation of concrete, infiltration side pipe pastes the infiltration face that leans on the layer of mating formation of pitch and sets up the infiltration hole, the top surface of infiltration side pipe is equipped with the mediation hole, mediation valve intercommunication of mediation hole and top bridge floor, the sluicing funnel intercommunication of surveying in infiltration side pipe both ends and the bridge both sides kerb, the drain pipe intercommunication of slu. The utility model discloses thoroughly change pre-buried position of drainage device and construction process, overcome traditional drainage device's defect, show and improve drainage effect.
Description
Technical Field
The utility model relates to a bridge engineering construction field, concretely relates to get rid of bridge expansion joint department pitch laying layer internal ponding structure fast. When the bridge expansion joint construction is carried out, the discharge of accumulated water in an asphalt pavement layer is blocked due to the filling of the expansion joint concrete, so that the safety and quality construction problems exist at the position. In order to solve the common quality problem in the field, a brand-new structure which is scientific, reasonable, safe and reliable and can remove accumulated water in the asphalt pavement layer near the bridge expansion joint is developed.
Background
With the rapid development of economic construction in China, the traffic flow and the bridge load are larger and larger, and the damage frequency of the asphalt surface layer of the existing bridge deck is correspondingly increased. Because the expansion joint is filled the concrete and has been blockked the discharge of the inside ponding of bituminous paving layer, the stagnant water produces the water damage effect to bituminous paving layer, and bituminous paving layer destroys in advance because of the water damage, even temporarily do not destroy, inside ponding also can influence the vehicle operation, and is more obvious to the driving when freezing especially in winter. The common disease is ubiquitous in bridge engineering in China, and even the inspection and acceptance of continuous communication workers are not passed. The common causes of this kind of mass disease are many, but the following two major causes exist:
(1) even if the asphalt pavement layer adopts compact grading, the compactness reaches 100%, and certain gaps still exist in the asphalt pavement layer, which is the inherent property of the asphalt pavement. The free water that permeates the asphalt pavement layer gathers to downstream under the action of gravity, and when meeting the expansion joint and filling the concrete, the concrete has stopped the seepage flow and has gone the department, and the free water is just detained in the asphalt pavement layer inside, produces the water damage effect to the asphalt pavement layer.
(2) And the water damage of the asphalt pavement layer is generally treated to a certain degree, but the water damage cannot be completely cured. Although the existing common devices such as pre-buried blind ditches, water seepage spring steel pipes and the like can improve the damage of the longitudinal curb part to a certain extent, the drainage effect on the transverse expansion joint of the bridge is not large. The root of the phenomenon lies in that the structural characteristics and the construction process of the bridge are closely related.
The traditional bridge floor blind ditch and the water seepage spring steel pipe are buried in the bridge floor pavement layer and are positioned at the junction of the asphalt pavement layer and the concrete pavement layer, namely, after the concrete pavement layer is paved, the traditional blind ditch and the water seepage spring steel pipe are laid, and then the asphalt pavement layer is paved, wherein the asphalt pavement layer is a flexible pavement, generally comprising 10cm two layers (commonly used 4cm +6cm two layers) of asphalt surface layers, and the concrete pavement layer is a rigid material, and is positioned at the junction of the asphalt pavement layer and the concrete pavement layer, and the water seepage spring steel pipe is easy to deform and block under the repeated impact of a vehicle, so that the drainage is failed too early, and even the asphalt layer at the junction is raised and damaged. Once this occurs, the blind ditch or weeping spring steel pipe will be successively destroyed.
Secondly, during the paving construction of the asphalt paving layer, the blind ditches and the water seepage spring steel pipes exposed on the concrete paving layer are easily deposited and blocked by a waterproof layer or an oil-sticking layer and are also easily crushed and damaged by construction vehicles and asphalt pavers.
And thirdly, after the bridge is finished and delivered, when the traditional device is damaged, the asphalt pavement layer must be chiseled out firstly, and even traffic is interrupted, so that the traditional device can be replaced and repaired, and people always work with diseases in order to prevent traffic interruption.
And fourthly, the traditional construction procedures of the bridge floor blind ditch and the water seepage spring steel pipe are earlier than the construction procedures of the bridge expansion joint. In order to prevent the later stage construction expansion joint from cutting the bridge deck pavement layer, the drainage device is damaged, and the drainage device is often artificially embedded at a certain distance from the front end of the expansion joint filling concrete when being embedded, so that the water seepage in the asphalt pavement layer can not be completely eliminated.
The traditional water seepage spring steel pipe of the drainage device is flexible, is affected by the flatness of a concrete pavement layer, is tightly attached to the upper surface of the concrete pavement layer, has a certain degree of deviation when lying, and particularly leads to the unsmooth and silted and blocked concave parts of the spring steel pipe when the inner diameter of the water seepage spring steel pipe is less than 1.5 cm.
In the above-mentioned many drawbacks, even if install traditional drainage device, the drainage effect is not very ideal, and the hidden danger is great. Many design departments have to adopt traditional devices to work together without better methods. Even if many bridge construction units obtain the agreement of design departments, the important reason of the traditional drainage device is directly cancelled, and the consequences generated after the traditional drainage device is cancelled are self-evident.
SUMMERY OF THE UTILITY MODEL
The concrete is filled at the expansion joint of the existing bridge to block accumulated water in the asphalt pavement layer, the accumulated water cannot be well drained by adopting the traditional drainage device, even more defects exist in the drainage device, and the asphalt pavement layer near the expansion joint is damaged in advance due to water damage. A brand-new structure for quickly removing accumulated water in the asphalt pavement layer at the bridge expansion joint is developed, the installation position and the construction sequence are effectively adjusted, and the structure is more scientific, reasonable, safe and reliable.
In order to achieve the above purpose, the utility model provides a following technical scheme:
get rid of bridge expansion joint department bituminous paving in situ ponding structure fast, including infiltration side pipe, sluicing funnel, support and mediation valve, the bridge deck pavement layer includes the bituminous paving layer on upper strata and the concrete pavement layer of lower floor, the expansion joint that is located the bridge fills concrete and bridge deck pavement layer juncture, along bridge horizontal installation infiltration side pipe in the expansion joint fills concrete, infiltration side pipe is fixed on the support, the support is fixed on the lateral wall on concrete pavement layer, infiltration side pipe pastes the infiltration face that leans on bituminous paving layer and sets up the infiltration hole, the top surface of infiltration side pipe is equipped with the mediation hole, the mediation valve intercommunication of mediation hole and top bridge floor, infiltration side pipe both ends and the interior sluicing funnel intercommunication of surveying of bridge both sides border stone, the drain pipe intercommunication of drainage funnel bottom and the vertical drainage system of bridge floor.
When water accumulated in the asphalt pavement layer at the bridge expansion joint reaches the expansion joint, the water seepage holes on the water seepage square pipe attached to the asphalt pavement layer flow into the water seepage square pipe, are gathered into the water drainage funnels at the two sides of the bridge, and then flow into the drain pipe of the bridge deck longitudinal drainage system from the bottom ends of the water drainage funnels to be discharged outside. The water seepage square pipe is buried in the expansion joint filling concrete, is not influenced by the vehicle running impact in later use and can not be damaged naturally. Meanwhile, after the water-seepage pipe runs for a period of time, if the clogging phenomenon is found in the water-seepage square pipe, high-pressure water flow can be used for flushing and dredging through the dredging valve, and the water drainage function of the water-seepage square pipe is recovered.
The improved concrete paving structure has the further improvement that the lower part of one third of the height of the water-permeable square pipe is positioned at the position of a concrete paving layer, and the upper part of two thirds of the height of the water-permeable square pipe is positioned at the position of an asphalt paving layer. The accumulated water and the seepage water in the asphalt pavement layer can be collected better.
According to a further improvement scheme, the support is an angle steel, mounting holes are formed in side plates of the angle steel at intervals, rivets are fixed to the side wall of the concrete pavement layer through the mounting holes, the water seepage square pipes are rectangular steel pipes, the steel pipes are arranged on the top panel of the angle steel, and the angle steel is connected and fixed through segmented spot welding. The angle iron bracket is convenient and firm to install, and the water seepage square pipe is connected with the angle iron by means of segmented spot welding, so that displacement is prevented when the expansion joint is poured and concrete is filled.
The improved scheme is that structural glue is respectively coated at the top edge connecting seam of the connecting surface of the asphalt pavement layer and the water seepage square tube and at the outer edge connecting seam of the connecting surface of the water seepage square tube and the bracket. Prevent to take place grout and crowd in infiltration side's pipe when pouring the expansion joint and filling the concrete.
The further improvement scheme is that the water seepage holes of the water seepage square pipe water seepage surface are formed by hole arrays with the diameter of 3.5mm, the upper and lower row spacing of 6mm and the left and right spacing of 10 mm. The seepage holes are uniform and dense, and the seepage collecting effect is good.
The further improvement scheme is that the dredging valve is a through cylindrical T-shaped steel pipe, the top cap adopts a hexagonal column shape, and the lower cylindrical dredging pipe is fixedly welded with the dredging hole in the water seepage square pipe.
The further improvement scheme is that the upper part of the water discharge funnel adopts a square pipe column, the lower part of the water discharge funnel adopts a circular pipe column structure, and the bottom end of the water discharge funnel is inserted into a water discharge pipe of a bridge deck longitudinal water discharge system.
The utility model discloses beneficial effect:
(1) the utility model discloses the pre-buried position of drainage structures is different with the tradition, and traditional scheme drainage device is pre-buried in the bridge deck pavement layer, and is located the pitch pavement layer on pitch pavement layer and the concrete pavement layer interface in situ, under the impact of vehicle traveling in later stage, because the pitch pavement layer is a flexible road surface, the concrete pavement layer is a rigid material, the drainage device who presss from both sides in the middle warp easily, silts up, lead to drainage premature failure, still can lead to this pitch pavement layer uplift to destroy even. Once this occurs, the blind ditch or weeping spring steel pipe will be successively destroyed. The water seepage square pipe is buried in rigid expansion joint filling concrete, is not influenced by vehicle running impact in later use, and cannot be damaged naturally.
(2) The utility model discloses construction process is last different with the tradition: the traditional drainage device is generally installed before the pavement construction of an asphalt pavement layer; and the utility model discloses a finish (generally install simultaneously with the bridge expansion joint) after the layer pavement construction of asphalt pavement, before the construction of bridge expansion joint filling concrete. Therefore, the damage to the drainage device during the construction of the asphalt pavement layer and the bridge expansion joint is effectively prevented.
(3) The installation accuracy is different: the horizontal position of the traditional drainage device is generally estimated, because the expansion joint is generally constructed by follow-up professional teams, the joint cutting position of the construction bridge surface is not very determined, in order to avoid damaging the drainage device by the joint cutting of the expansion joint, the horizontal position of the drainage device can only be avoided, and the embedding position is away from the front end of concrete filled in the expansion joint by a certain distance, so that the seepage water in the asphalt pavement layer near the expansion joint cannot be completely eliminated. And the utility model discloses an installation after the expansion joint-cutting, joint-cutting department is hugged closely to infiltration side pipe, and pitch after the joint-cutting layer of mating formation and concrete pavement between the layer black and white is clear, can regard this interface as the reference surface, and the accuracy is installed the utility model discloses a drainage device makes the horizontal slope of drainage device unanimous with the horizontal slope of bridge floor.
(4) The water seepage elastic steel pipe of the traditional drainage device is influenced by the flatness of a concrete pavement layer, and a certain fall can be generated to form siltation and blockage in the pipe. And the utility model discloses infiltration side pipe is fixed on the support that the roughness is good, can not produce this condition of lifting up and lying down, and the drainage is smooth and easy again.
Practice proves through many times, adopt this utility model can realize the function that traditional drainage device and method can not reach, can show near improvement bridge expansion joint bridge floor bituminous paving layer inside ponding efficiency. Because the drainage is timely, no ponding exists in the asphalt pavement layer near the expansion joint, the driving safety and comfort at the bridge expansion joint are obviously improved after rain and snow, and the aesthetic feeling and the durability of the bridge deck are also improved to a certain extent.
The utility model discloses scientific and reasonable, safe and reliable, small investment, effectual, longe-lived, installation swift, difficult jam, maintenance convenience. Is well received by people and users in all social circles such as owners, design, quality inspection, supervision, construction units, driving personnel and the like.
Drawings
FIG. 1 is a general plan view of the drainage structure of the present invention;
FIG. 2 is a general view of the cross section arrangement of the drainage structure of the present invention;
FIG. 3 is a general view of the arrangement of the vertical section of the drainage structure of the present invention;
FIG. 4 is a plan view showing the details of the drainage structure of the present invention;
FIG. 5 is a detailed cross-sectional view of the drainage structure of the present invention;
fig. 6 is a detailed view of the vertical section of the drainage structure of the present invention.
Wherein: 1 infiltration side pipe, 2 sluicing funnels, 3 supports, 4 mediation valves, 5 rivets, 6 bridge deck pavement layers, 61 concrete pavement layers, 62 bituminous pavement layers, 7 bridge deck drainage system horizontal pipes, 8 bridge deck drainage system standpipe, 9 kerbs, 10 bituminous pavement layers and concrete pavement layer interface, 11 infiltration holes, 12 dredged hole, 13 expansion joint devices, 14 expansion joint filling concrete.
Detailed Description
One, the utility model discloses drainage device mainly includes following processing preparation step:
(1) stainless steel, galvanized steel pipes and alloy steel with the thickness of 3.5mm and higher antirust capacity and pressure resistance are processed into a water seepage square pipe 1 with the diameter of 35 multiplied by 20 multiplied by 3.5mm, a water seepage hole 11 array with the diameter of 3.5mm, the upper and lower row spacing of 6mm and the left and right spacing of 10mm is arranged on the water seepage surface of the side surface, and a dredging hole 12 with the diameter of 15mm is arranged at the midpoint of the top surface;
(2) the water discharge funnel 2 is made of stainless steel, galvanized steel pipe and alloy steel with the thickness of 8.0mm and high antirust capacity and pressure resistance, a square pipe with the diameter of 100 multiplied by 100mm is adopted at the upper part of the water discharge funnel 2, and a circular pipe column with the diameter of 50mm is adopted at the lower part of the water discharge funnel;
(3) stainless steel, galvanized steel pipes and alloy steel with the wall thickness of 3.5mm and higher anti-rust capacity and pressure resistance are adopted to manufacture the dredging valve 4, the valve rod is in a T-shaped penetrating cylinder shape, the top head cap is in a hexagonal cylinder shape with the diameter of 22mm and the height of 20mm, and the lower part of the top head cap is a dredging circular pipe column with the diameter of 15 mm;
(4) the bracket 3 for fixing the water seepage square pipe is made of galvanized equal-side angle steel with the thickness of 25 multiplied by 3mm, the material is Q345 section steel, and mounting holes are drilled on the side plates of the angle steel at intervals of 50 cm;
(5) q345 galvanized steel material, and the like, and about 20mm long fixing rivet 5.
Second, construction method for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint
(1) Before the construction of filling concrete 14 in the bridge expansion joint, performing joint cutting on the bridge deck pavement layer 6, and starting to install a drainage device after the joint cutting; the bridge expansion joint 13 can be installed synchronously with the drainage device;
(2) and (3) installing an angle iron bracket: the interface between the concrete pavement layer 62 and the asphalt pavement layer 61 of the bridge deck pavement layer after the joint cutting is clear in black and white, and before the angle iron bracket 3 is installed, ink lines are flicked along the bridge deck cross slope at the position about 10mm below the interface between the asphalt pavement layer and the concrete pavement layer to serve as the reference lines for installing the top surface of the angle iron bracket, the ink line cross slope is equal to the bridge deck cross slope, so that after the angle iron bracket is installed, the cross slope is consistent with the bridge deck cross slope. The angle iron bracket 3 is fixed on the side wall of the concrete pavement layer 62 through the mounting hole by adopting a fixing rivet 5.
(3) 1 installation in infiltration side pipe: during the installation infiltration side pipe 1 is located the 3 top surfaces of angle steel support, and the infiltration face of infiltration side pipe 1 pastes towards bituminous paving layer 61 lateral wall and leans on, and the one-third lower part of infiltration side pipe 1 height is located concrete paving layer 62 position, and two-thirds upper portion is located bituminous paving layer 61 position, adopts segmentation spot welding to connect fixedly between infiltration side pipe 1 and the angle steel support 3 to prevent to take place the displacement when pouring the expansion joint and filling concrete 14. In addition, in order to prevent cement paste from being squeezed into the water-permeable square pipe when the expansion joint is poured and filled with concrete, structural glue is coated on a top side connecting seam of a connecting surface of the asphalt pavement layer 61 and the water-permeable square pipe 1 and an outer side connecting seam of a connecting surface of the water-permeable square pipe 1 and the support 3 respectively after the water-permeable square pipe is installed.
(4) And (3) installing a dredging valve 4: the dredging hole at the bottom end of the dredging valve 4 is aligned to the dredging hole 12 on the top surface of the water seepage square pipe 1, and the top end of the dredging valve is connected with the upper surface of the bridge floor in a welding mode.
(5) And (3) installing a water drainage funnel 2: the drainage funnel 2 is communicated with two ends of the water seepage square pipe 1 and is positioned at the inner side of a curb 9 or a guardrail foundation at two sides of a bridge, the lower end of the drainage funnel 2 is inserted into a horizontal pipe 8 of a bridge floor longitudinal drainage system, and the drainage is performed outside through a vertical pipe 8.
(6) After the drainage device and the bridge expansion joint device are installed, the expansion joint filling concrete 14 begins to be poured.
Use method of structure for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint
(1) After the filling concrete for pouring the expansion joint reaches the design strength, the top surface of the asphalt pavement layer near the bridge expansion joint can be continuously sprinkled until the vertical pipe of the bridge deck longitudinal drainage system discharges water, and then sprinkling is stopped. The utility model discloses the device effect is fine that the intraformational ponding of bridge expansion joint department bituminous paving is discharged in 1 to 2 hours, explains.
(2) If above-mentioned effect is not good, show that there is concrete dregs in the infiltration square tube, must in time dredge through dredging the valve. When the water-permeable square pipe runs for a period of time, the clogging phenomenon of the water-permeable square pipe is found, and high-pressure water flow can be used for dredging through the dredging valve to recover the drainage function of the water-permeable square pipe.
Claims (7)
1. Get rid of bridge expansion joint department bituminous paving in situ ponding structure fast, its characterized in that: the bridge deck pavement layer (6) comprises an upper asphalt pavement layer (61) and a lower concrete pavement layer (62), a junction of expansion joint filling concrete (14) of the bridge and the bridge deck pavement layer (6), a water seepage square pipe (1) is transversely installed in the expansion joint filling concrete (14) along the bridge, the water seepage square pipe (1) is fixed on the support (3), the support (3) is fixed on the side wall of the concrete pavement layer (62), a water seepage hole (11) is formed on a water seepage surface of the water seepage square pipe (1) close to the asphalt pavement layer (61), a dredging hole (12) is formed in the top surface of the water seepage square pipe (1), the dredging hole (12) is communicated with the dredging valve (4) of the bridge deck above, two ends of the water seepage square pipe (1) are communicated with the water drainage funnels (2) which are arranged in the border stones (9) on two sides of the bridge, the bottom end of the water discharge funnel (2) is communicated with a water discharge pipe of a bridge floor longitudinal water discharge system.
2. The structure of claim 1 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: the one-third lower part of infiltration side pipe (1) height is located concrete pavement layer (62) position, and two-thirds upper portion is located asphalt pavement layer (61) position.
3. The structure of claim 1 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: support (3) are the angle steel, and the mounting hole has been beaten at the interval on the side board of angle steel, adopts rivet (5) to fix on the lateral wall on concrete pavement layer (62) through the mounting hole, and infiltration side pipe (1) is the rectangle steel pipe, and on the angle steel top panel was arranged in to the steel pipe, adopted the segmentation spot welding to connect fixedly.
4. The structure of claim 1 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: structural glue is respectively coated at the top edge connecting seam of the connecting surface of the asphalt pavement layer and the water seepage square tube and at the outer edge connecting seam of the connecting surface of the water seepage square tube and the bracket.
5. The structure of claim 1 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: the water seepage holes (11) on the water seepage surface of the water seepage square pipe (1) are formed by hole arrays with the diameter of 3.5mm, the vertical row spacing of 6mm and the horizontal spacing of 10 mm.
6. The structure of claim 3 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: the dredging valve (4) is a through cylindrical T-shaped steel pipe, the top cap adopts a hexagonal column shape, and the lower cylindrical dredging pipe is fixedly welded with the dredging hole (12) on the water seepage square pipe (1).
7. The structure of claim 3 for rapidly removing accumulated water in the asphalt pavement layer at the bridge expansion joint, which is characterized in that: the upper part of the water drainage funnel (2) adopts a square tubular column, the lower part adopts a circular tubular column structure, and the bottom end of the water drainage funnel is inserted into a drainage pipe of a bridge floor longitudinal drainage system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020088244.0U CN211547327U (en) | 2020-01-16 | 2020-01-16 | Structure for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint |
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| CN202020088244.0U CN211547327U (en) | 2020-01-16 | 2020-01-16 | Structure for quickly removing accumulated water in asphalt pavement layer at bridge expansion joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005313A (en) * | 2020-01-16 | 2020-04-14 | 张成瑞 | Structure for quickly removing water accumulated in asphalt pavement layer at bridge expansion joint and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005313A (en) * | 2020-01-16 | 2020-04-14 | 张成瑞 | Structure for quickly removing water accumulated in asphalt pavement layer at bridge expansion joint and construction method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230414 Address after: No. 10 Jiefang East Road, Qingjiangpu District, Huai'an City, Jiangsu Province, 223000 Patentee after: Jiangsu North Road Engineering Co.,Ltd. Address before: 223001 room 506, building 4, area 2, Liyuan new village, Liyuan Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee before: Zhang Chengrui |
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