CN111005313A - Structure for quickly removing water accumulated in asphalt pavement layer at bridge expansion joint and construction method - Google Patents
Structure for quickly removing water accumulated in asphalt pavement layer at bridge expansion joint and construction method Download PDFInfo
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- CN111005313A CN111005313A CN202010044836.7A CN202010044836A CN111005313A CN 111005313 A CN111005313 A CN 111005313A CN 202010044836 A CN202010044836 A CN 202010044836A CN 111005313 A CN111005313 A CN 111005313A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000010426 asphalt Substances 0.000 title claims abstract description 74
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 230000008595 infiltration Effects 0.000 claims description 20
- 238000001764 infiltration Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
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- 230000007547 defect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 96
- 229910000639 Spring steel Inorganic materials 0.000 description 10
- 229910000746 Structural steel Inorganic materials 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000008397 galvanized steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
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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
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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Abstract
The invention discloses a structure and a construction method for quickly removing accumulated water in an asphalt pavement layer at a bridge expansion joint, wherein the bridge pavement layer comprises an upper asphalt pavement layer and a lower concrete pavement layer, a water seepage square pipe is arranged at the junction of expansion joint filling concrete and the bridge pavement layer and in the expansion joint filling concrete along the transverse direction of a bridge, the water seepage square pipe is fixed on a support, the support is fixed on the side wall of the concrete pavement layer, the water seepage square pipe is provided with water seepage holes along the water seepage surface attached to the asphalt pavement layer, the top surface of the water seepage square pipe is provided with a dredging hole, the dredging hole is communicated with a dredging valve of the bridge deck above, the two ends of the water seepage square pipe are communicated with water discharge funnels arranged in kerbs at the two sides of the bridge, and the bottom ends of the. The invention thoroughly changes the pre-buried position and the construction process of the drainage device, overcomes the defects of the traditional drainage device and obviously improves the drainage effect.
Description
Technical Field
The invention relates to the field of bridge engineering construction, in particular to a structure and a construction method for quickly removing accumulated water in an asphalt pavement layer at a bridge expansion joint. 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.
① the traditional blind ditch and water seepage spring steel pipe are buried in the bridge pavement layer, which is located at the junction of the asphalt pavement layer and the concrete pavement layer, i.e. after the concrete pavement layer is paved, the traditional blind ditch and water seepage spring steel pipe are laid, then the asphalt pavement layer is paved, the asphalt pavement layer is a flexible pavement, generally 10cm two (4 cm +6cm two layers in common use) asphalt surface layers, the concrete pavement layer is a rigid material, the traditional blind ditch and water seepage spring steel pipe located at the junction of the asphalt pavement layer and the concrete pavement layer are easy to deform and block under the repeated impact of vehicles, leading to premature failure of drainage, and even leading to the uplift and damage of the asphalt layer at the junction.
② when the asphalt pavement layer is paved, the exposed blind ditches and water-permeable spring steel pipes on the concrete pavement layer are easy to be deposited and blocked by the waterproof layer or the oil-sticking layer, and are easy to be rolled and damaged by construction vehicles and asphalt pavers.
③ when the traditional device is destroyed after the bridge is finished and delivered, the asphalt pavement layer must be chiseled out, even the traffic is interrupted, and the device can be replaced and repaired, and people often work just with trouble in order to prevent the traffic interruption.
④ the construction process of the traditional bridge floor blind ditch and water seepage spring steel pipe is earlier than the construction process of the bridge expansion joint, in order to prevent the damage of the drainage device when the expansion joint cuts the bridge floor pavement layer in the later construction, the drainage device is often buried by a certain distance from the front end of the filling concrete of the expansion joint, thereby leading the water seepage in the asphalt pavement layer to be unable to be completely removed.
⑤ the traditional drainage device water seepage spring steel pipe is flexible, is affected by the flatness of the concrete pavement layer, clings to the upper surface of the concrete pavement layer, and has a certain deviation degree when leaning, especially for the water seepage spring steel pipe with the inner diameter of only less than 1.5cm, the spring steel pipe is not smooth, and the concave part is silted and blocked.
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.
Disclosure of Invention
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 and a construction method for quickly removing accumulated water in an asphalt pavement layer at a bridge expansion joint are 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 purpose, the invention provides the 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 construction method for quickly removing the accumulated water in the asphalt pavement layer at the bridge expansion joint comprises the following steps of:
(1) before the construction of filling concrete in the bridge expansion joint, joint cutting is carried out on a bridge deck pavement layer of the bridge;
(2) the concrete pavement layer and the asphalt pavement layer interface of the bridge deck pavement layer after joint cutting are clear in black and white, the bracket is fixed on the side wall of the concrete pavement layer, the water seepage square pipe is positioned on the top surface of the bracket and fixed, the lower part of one third of the height of the water seepage square pipe is positioned at the position of the concrete pavement layer, the upper part of two thirds of the height of the water seepage square pipe is positioned at the position of the asphalt pavement layer, the water seepage square pipe is provided with water seepage holes by clinging to the water seepage surface of the asphalt pavement layer, the top surface of the water seepage square pipe is provided with dredging holes which are communicated with a dredging valve of the bridge deck above, the two ends of the water seepage square pipe are communicated with;
(3) and pouring concrete for filling the expansion joint.
The further improvement scheme is that before the support is installed, a reference ink line is sprung along the side wall of the concrete pavement layer of the cutting seam according to the installation height position of the top surface of the support, and the ink line cross slope is equal to the bridge deck cross slope. The ink line is used as a support top surface installation reference line, the water seepage square tube is fixed on the support, and the cross slope is equal to the bridge deck cross slope.
The improved scheme is that after the water-permeable square pipe is installed, structural glue is respectively coated at the top edge connecting seam of the connecting surface of the asphalt pavement layer and the water-permeable square pipe and the outer edge connecting seam of the connecting surface of the water-permeable square pipe and the support, so that cement paste is prevented from being squeezed into the water-permeable square pipe when the expansion joint is poured and filled with concrete.
The invention has the beneficial effects that:
(1) the drainage structure of the invention is different from the traditional drainage structure, the drainage device of the traditional proposal is pre-embedded in the bridge deck pavement layer and is positioned in the asphalt pavement layer on the interface of the asphalt pavement layer and the concrete pavement layer, under the impact of vehicle running in the later period, because the asphalt pavement layer is a flexible pavement and the concrete pavement layer is a rigid material, the drainage device clamped in the middle is easy to deform and block, thus leading to early drainage failure and even leading to the uplift and damage of the asphalt pavement layer. 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 construction process of the invention is different from the traditional one: the traditional drainage device is generally installed before the pavement construction of an asphalt pavement layer; the invention is completed after the asphalt pavement layer is paved and before the bridge expansion joint is filled with concrete (generally, the bridge expansion joint and the bridge expansion joint are installed at the same time). 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. The invention is installed after the expansion joint is cut, the water seepage square pipe is tightly attached to the cutting joint, the interface between the asphalt pavement layer and the concrete pavement layer after the cutting joint is clear in black and white, the interface can be used as a reference surface, and the drainage device is accurately installed, so that the transverse gradient of the drainage device is consistent with the transverse gradient of the bridge deck.
(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. The water-permeable square pipe is fixed on the support with good flatness, so that the situation of leaning to the ground is avoided, and water drainage is smooth.
Multiple practices prove that the drainage device and the drainage method can realize functions which cannot be achieved by the traditional drainage device and method, and can remarkably improve the water accumulation efficiency in the asphalt pavement layer of the bridge deck near the bridge expansion joint. 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 invention has the advantages of science, reasonableness, safety, reliability, less investment, good effect, long service life, quick installation, difficult blockage and convenient maintenance. 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 a drainage structure according to the present invention;
FIG. 2 is a general view of the cross-sectional 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 detail view of the drainage structure of the present invention;
FIG. 5 is a detailed cross-sectional view of a drainage structure of the present invention;
FIG. 6 is a detailed longitudinal cross-sectional view 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
The drainage device mainly comprises the following processing and manufacturing steps:
(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 accumulated water in the asphalt pavement layer at the bridge expansion joint is discharged within 1 to 2 hours, which shows that the device has good effect.
(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 (10)
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.
8. The construction method for quickly removing the accumulated water structure in the asphalt pavement layer at the bridge expansion joint is characterized by comprising the following steps of:
(1) before the construction of filling concrete in the bridge expansion joint, joint cutting is carried out on a bridge deck pavement layer of the bridge;
(2) the concrete pavement layer and the asphalt pavement layer interface of the bridge deck pavement layer after joint cutting are clear in black and white, the bracket is fixed on the side wall of the concrete pavement layer, the water seepage square pipe is positioned on the top surface of the bracket and fixed, the lower part of one third of the height of the water seepage square pipe is positioned at the position of the concrete pavement layer, the upper part of two thirds of the height of the water seepage square pipe is positioned at the position of the asphalt pavement layer, the water seepage square pipe is provided with water seepage holes by clinging to the water seepage surface of the asphalt pavement layer, the top surface of the water seepage square pipe is provided with dredging holes which are communicated with a dredging valve of the bridge deck above, the two ends of the water seepage square pipe are communicated with;
(3) and concrete (14) is filled in the pouring expansion joint.
9. The construction method for rapidly removing the accumulated water structure in the asphalt pavement layer at the bridge expansion joint according to claim 8, which is characterized in that: before the support (3) is installed, a reference ink line is sprung along the side wall of the concrete pavement layer (62) of the cutting seam according to the installation height position of the top surface of the support (3), and the ink line cross slope is equal to the bridge deck cross slope.
10. The construction method for rapidly removing the accumulated water structure in the asphalt pavement layer at the bridge expansion joint according to claim 8, which is characterized in that: after the water seepage square pipe (1) is installed, structural glue is respectively coated at the top edge connecting seam of the connecting surface of the asphalt pavement layer (61) and the water seepage square pipe and the outer edge connecting seam of the connecting surface of the water seepage square pipe and the bracket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010044836.7A CN111005313A (en) | 2020-01-16 | 2020-01-16 | Structure for quickly removing water accumulated in asphalt pavement layer at bridge expansion joint and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733696A (en) * | 2020-05-26 | 2020-10-02 | 广西翔路建设有限责任公司 | Water drainage preventing structure of corrugated steel web prestress combined box girder bridge |
| CN113622293A (en) * | 2021-07-30 | 2021-11-09 | 中铁十九局集团第五工程有限公司 | Bridge expansion joint drainage system and installation method thereof |
-
2020
- 2020-01-16 CN CN202010044836.7A patent/CN111005313A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733696A (en) * | 2020-05-26 | 2020-10-02 | 广西翔路建设有限责任公司 | Water drainage preventing structure of corrugated steel web prestress combined box girder bridge |
| CN113622293A (en) * | 2021-07-30 | 2021-11-09 | 中铁十九局集团第五工程有限公司 | Bridge expansion joint drainage system and installation method thereof |
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