CN110820587A - Urban bridge buried drain pipe installation construction method - Google Patents
Urban bridge buried drain pipe installation construction method Download PDFInfo
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- CN110820587A CN110820587A CN201911203151.6A CN201911203151A CN110820587A CN 110820587 A CN110820587 A CN 110820587A CN 201911203151 A CN201911203151 A CN 201911203151A CN 110820587 A CN110820587 A CN 110820587A
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- box girder
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- 238000010276 construction Methods 0.000 title claims abstract description 58
- 238000009434 installation Methods 0.000 title claims abstract description 27
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 66
- 239000008397 galvanized steel Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009941 weaving Methods 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an urban bridge buried drain pipe installation construction method, and relates to the technical field of drainage systems of viaducts, in particular to a box girder, galvanized steel pipes and pier columns. This city bridge buries formula outlet pipe installation construction method secretly, traditional bridge exposed pvc outlet pipe has destroyed the whole outward appearance of whole overpass, and adopt and bury formula outlet pipe secretly, pier stud and case roof beam more tend to harmoniously, and the aesthetic measure improves greatly, has increased the whole effect between case roof beam and the pier stud, because the installation of burying formula outlet pipe secretly goes on in step with the construction of pier stud, case roof beam, consequently, the interior mode support that utilizes pier stud support or case roof beam that can be great goes the installation, fixed outlet pipe, and the installation of outlet pipe is fixed very portably moreover, consequently also shorten construction cycle greatly.
Description
Technical Field
The invention relates to the technical field of drainage systems of viaducts, in particular to a construction method for installing buried drain pipes of urban bridges.
Background
As the pace of bridge construction in China is continuously accelerated, the structural form of the bridge is more diversified, so that the method is particularly critical for mastering details of the bridge, and the water drain pipe of the viaduct is one of bridge auxiliary structures, has the function of draining accumulated water on the bridge floor and is an important channel for dredging the bridge floor water to flow to a ground rainwater well.
The design and construction of the strength and the overall aesthetic property of the drain pipe are one of the directions in which bridge construction research can be carried out in the future.
The drainage system of overpass is a key link of bridge construction, and most bridge drain pipes adopt external installation to fix on the pier stud now, and the pipeline is easy fracture, damaged under external impact, makes the bridge floor rainwater directly erode to the underpad ground of overpass, influences pedestrian and vehicle safety past, and external wash-off pipe influences the bridge pleasing to the eye moreover, and the pipeline damages easily, and the later stage is overhauld loaded down with trivial details, consumes money and wealth.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a construction method for installing a buried drain pipe of an urban bridge, which solves the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an urban bridge secretly buries formula outlet pipe construction method, includes case roof beam, galvanized steel pipe and pier stud, the below both sides of case roof beam all are provided with the bridge pad, the pier stud is settled in the below of bridge pad, the galvanized steel pipe runs through from the inside both sides of case roof beam and the inside both sides of pier stud respectively, and is connected with the drain pipe link between the galvanized steel pipe that passes in the case roof beam and the pier stud.
Optionally, the drain pipe connecting end comprises a rubber connecting pipe and a braided steel wire, and the braided steel wire is arranged on the inner side of the rubber connecting pipe.
Optionally, the rubber connecting pipe is inserted into the pipe orifice of the galvanized steel pipe, and the galvanized steel pipe penetrating through the box girder and the galvanized steel pipe penetrating through the pier stud form a communicating structure through the rubber connecting pipe.
Optionally, one side of the lower part of the galvanized steel pipe passing through the pier column, which is close to the vertical center line of the pier column, is connected with an inspection valve, and the bottom of the galvanized steel pipe passing through the pier column is connected with a drainage ditch.
Optionally, the outwards extended tip of escape canal all is provided with the ponding groove, and the outside in ponding groove is fixed with wall formula guardrail.
Optionally, the service valve is disposed above the ground line, and the drainage ditch is disposed below the ground line.
Optionally, the construction process flow of the urban bridge buried drain pipe is as follows:
the first stage, the pier column construction stage of the buried drain pipe;
the second stage, the construction stage of the joint section of the box girder and the upright post of the water drain pipe;
and in the third stage, burying the water drain pipe in the box girder.
Optionally, the specific implementation steps of the first stage are as follows:
a. binding pier column steel bars;
b. the vertical water drain pipe is buried, avoids reinforcing steel bars in the pier stud, and is butted with the pipeline by using a right-angle three-way pipe and an elbow;
c. the maintenance valve is arranged with the water outlet;
d. the positioning ribs position the pipeline on the pier stud reinforcing steel bars;
e. the maintenance valve and the water outlet are blocked;
f. pouring pier column concrete.
Optionally, the specific implementation steps of the second stage and the third stage are as follows:
a. finishing the laying of the bottom die of the cast-in-place box girder;
b. the drain pipes of the preformed holes on the pier columns are correspondingly embedded with the box girder drain pipes, and are butted by a rubber connecting pipe;
c. binding box girder reinforcing steel bars;
d. the non-standard elbow is connected with the vertical drain pipe;
e. burying a drain pipe in the flange plate;
f. pouring the box girder for the first time;
g. the water accumulating tank is connected with the pipeline;
h. and (5) casting the box girder for the second time.
The invention provides an installation and construction method of a buried drain pipe of an urban bridge, which has the following beneficial effects:
1. traditional bridge exposed pvc water drain pipe has destroyed the whole outward appearance of whole overpass, and adopts the formula of burying water drain pipe, and pier stud and case roof beam more tend to harmoniously, and the aesthetic measure improves greatly, has increased the whole effect between case roof beam and the pier stud.
2. Because the installation of the buried drain pipe is carried out synchronously with the construction of the pier column and the box girder, the installation and the fixation of the drain pipe can be greatly carried out by utilizing the inner mold support of the pier column support or the box girder, and the installation and the fixation of the drain pipe are very simple and convenient, thereby greatly shortening the construction period.
3. Most of the water drain pipes are embedded in the upright posts and the box girder concrete, so that few exposed pipes are needed, the water drain pipes of the hidden embedded parts are basically not needed to be overhauled, the rubber connecting pipes are extremely simple and convenient to replace, the service life of general rubber is 3-5 years, and the rubber is replaced by only using a climbing vehicle after aging, so that the water drain pipes are very convenient and fast.
4. After the process is utilized, the installation and construction period of the water drain pipe is greatly shortened, cross construction can be greatly reduced under the background that the construction period of the viaduct is required to be so high at present, the exposed PVC pipe is usually positioned on a newly-built road and tends to occupy the construction period of the road, and the construction of the buried water drain pipe is carried out synchronously with the construction of the upright post or the box girder, so the construction period pressure is invisibly and greatly reduced, and the cost is reduced.
5. The construction period is shortened, the construction efficiency of the pier column and the box girder is greatly improved, the appearance effect of the pier column and the box girder is greatly improved, the integral aesthetic property of the bridge is greatly improved, meanwhile, the water drain pipe is protected by concrete and is not easy to damage, the repair of one time is avoided, and certain social benefits are generated.
Drawings
FIG. 1 is a schematic diagram of a standard cross-section downcomer elevation structure in accordance with the present invention;
FIG. 2 is a schematic diagram of a standard cross-section downcomer plan structure according to the present invention;
FIG. 3 is a schematic view of the connecting end of the drainage pipe of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: 1. a box girder; 2. a drain pipe connecting end; 3. a rubber connecting pipe; 301. weaving steel wires; 4. a galvanized steel pipe; 5. a bridge pad; 6. pier studs; 7. a service valve; 8. a drainage ditch; 9. a ground line; 10. a water accumulation tank; 11. wall type guardrail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present invention provides a technical solution: a hidden buried drain pipe installation construction method for urban bridges comprises a box girder 1, galvanized steel pipes 4 and pier studs 6, wherein bridge pads 5 are arranged on two sides below the box girder 1, the pier studs 6 are arranged below the bridge pads 5, the galvanized steel pipes 4 respectively penetrate through the two sides of the box girder 1 and the two sides of the pier studs 6, a drain pipe connecting end 2 is connected between the galvanized steel pipes 4 penetrating through the box girder 1 and the galvanized steel pipes 4 penetrating through the pier studs 6, the drain pipe connecting end 2 comprises a rubber connecting pipe 3 and braided steel wires 301, the braided steel wires 301 are arranged on the inner side of the rubber connecting pipe 3, the braided steel wires 301 improve the structural strength of the rubber connecting pipe 3, so that the connection performance of the drain pipe connecting end 2 is ensured, the rubber connecting pipe 3 is inserted into the pipe orifice of the galvanized steel pipes 4, and the galvanized steel pipes 4 penetrating through the box girder 1 and the pier studs 6 form a communication structure through the rubber connecting pipe 3, the connection between the two sections of galvanized steel pipes 4 is realized by using the rubber connecting pipe 3, the connection mode is simple, one side, close to the vertical central line of the pier stud 6, of the lower part of the galvanized steel pipe 4 penetrating through the pier stud 6 is connected with an overhaul valve 7, the bottom of the galvanized steel pipe 4 penetrating through the pier stud 6 is connected with a drainage ditch 8, the end parts, extending outwards, of the drainage ditch 8 are respectively provided with a water accumulation groove 10, the outer side of the water accumulation groove 10 is fixedly provided with a wall type guardrail 11, the overhaul valve 7 is arranged above a ground line 9, the drainage ditch 8 is arranged below the ground line 9, rainwater is collected into the water accumulation groove 10 from the bridge floor and is discharged into the ground drainage ditch 8 along the galvanized steel pipe 4, the galvanized steel pipe 4 has strong adhesive force, concrete protection, corrosion resistance and extremely long service life, and repeated repair is not needed;
the construction process flow of the urban bridge buried drain pipe is as follows:
the first stage, the construction stage of the pier stud 6 of the buried drain pipe;
the second stage, the construction stage of the joint section of the box girder 1 of the water drain pipe and the upright post;
in the third stage, the construction stage is embedded in the water drain pipe box girder 1;
the first stage comprises the following specific implementation steps:
a. binding pier 6 steel bars;
b. the vertical water drain pipe is buried, avoids the reinforcing steel bars in the pier stud 6, and is butted with the pipeline by using a right-angled three-way pipe and an elbow;
c. the maintenance valve 7 is arranged with the water outlet;
d. the positioning ribs position the pipeline on the steel bars of the pier stud 6;
e. the maintenance valve 7 is plugged with the water outlet;
f. pouring concrete for the pier stud 6;
and the second stage and the third stage are implemented by the following steps:
a. finishing the laying of a bottom die of the cast-in-place box girder 1;
b. the drain pipes of the preformed holes on the pier stud 6 are correspondingly embedded into the drain pipes of the box girder 1 and are butted by a rubber connecting pipe 3;
c. binding steel bars of the box girder 1;
d. the non-standard elbow is connected with the vertical drain pipe;
e. burying a drain pipe in the flange plate;
f. pouring the box girder 1 for the first time;
g. the water accumulating tank 10 is connected with a pipeline;
h. and (5) casting the box girder 1 for the second time.
When installing a buried drain pipe, i.e. galvanized steel pipe 4, care should be taken: the galvanized steel pipe 4 is pre-buried before the box girder 1 is poured, the galvanized steel pipe 4 is ensured not to be blocked, and a test is carried out on whether the galvanized steel pipe 4 is smooth or not before the drainage pipe connecting end 2 is constructed; when the galvanized steel pipes 4 in the box girder 1 and the pier stud 6 conflict with the steel bars, the galvanized steel pipes 4 can be finely adjusted; arranging an overhaul valve 7 according to the standard, and exposing the pier stud 6 for overhaul; the galvanized steel pipe 4 cannot be blocked during construction, and a watering test is carried out after the construction is finished, so that the blockage is prevented; the galvanized steel pipe 4 at the expansion joint is arranged on the side with higher elevation and is closely attached to the expansion joint;
the construction method for installing the buried water drain pipe of the urban bridge utilizes the gap between the girder body of the box girder 1 and the steel bars in the pier stud 6 to properly adjust the space between the main bars, utilizes the larger gap at the inner side of the erecting bars of the pier stud 6 to lead the galvanized steel pipe 4 to be vertically buried downwards along the pier stud 6, simultaneously, the embedded water drain pipe installation construction method of the urban bridge is only required to be bound and fixed with the main reinforcement of the pier stud 6, beam body reinforcements and prestressed pipelines at all parts are avoided, the galvanized steel pipe 4 must avoid the prestressed pipelines (the adjustment range is less than 50mm) when penetrating through the web plate and the bottom plate in the box girder 1, the corresponding pipeline embedding angle is correspondingly adjusted, and the local stirrup spacing can be slightly adjusted, the position of the galvanized steel pipe 4 in the pier stud 6 can be properly adjusted according to the arrangement of the steel bars in the pier stud 6, but the position is kept away from a support cushion block or a limiting device (a concrete block or profile steel) of the box girder 1;
for the length difference of the galvanized steel pipe 4 in the pier stud 6: after the steel bars of the pier stud 6 are bound, the galvanized steel pipes 4 are embedded, so that the length of each galvanized steel pipe 4 is determined according to the actual height of the pier stud 6, the length from each galvanized steel pipe 4 to a reserved hole and an inspection hole can also be determined according to the designed elevation, the height difference between the holes and the height difference from the top of the pier stud 6, the galvanized steel pipe 4 corresponding to each pier stud 6 is precisely processed off site, and the installation is directly carried out on site;
and the length of the galvanized steel pipe 4 in the box girder 1: when the main body steel bars and the corrugated pipes of the cast-in-place box girder 1 are bound and installed to 70%, before a web internal support template is installed, embedding work of galvanized steel pipes 4 in the box girder 1 is started, namely according to a cross section diagram of a cross beam of the box girder 1 corresponding to the designed pier stud 6 position, according to the actual trend of the galvanized steel pipes 4, if the steel bars and the corrugated pipes meet, avoidance can be properly adjusted, the length is correspondingly lengthened by 10cm in the construction process, and in the field operation process, the length is cut short by using an electric saw according to the actual length;
regarding the treatment of the joint section between the pier stud 6 and the box girder 1, firstly, after the construction of the pier stud 6 is completed, the construction of the box girder 1 can be performed, there is a precedence relationship, and the pier stud 6 and the box girder 1 are connected by the support (namely, the bridge pad 5), so the galvanized steel pipe 4 can not penetrate through the bridge pad 5 and extend into the box girder 1, so a reserved joint section is required between the pier stud 6 and the box girder 1, secondly, the pier stud 6 and the box girder 1 can generate different temperature strains correspondingly along with the change of air temperature, and generate relative displacement, therefore if a metal pipe is also buried in the joint section and is butted with the reserved hole of the box girder 1 and the reserved hole of the upright post, the galvanized steel pipe 4 can be broken and damaged due to the generated relative displacement, finally, the rubber connecting pipe 3 is adopted to butt joint the two holes, and the pier stud 6 and the respective galvanized steel pipe 4 in the box girder 1 are connected by utilizing good plasticity and sealing performance of rubber, paying attention to the sealing at the joint, no gap can be formed, the influence on later use is prevented, the displacement (expansion amount) of the rubber connecting pipe 3 cannot exceed the displacement of the designed one-way bridge pad 5 of the box girder 1, and the displacement is generally not more than 4 cm;
in the concrete pouring construction stage of the pier stud 6 and the box girder 1, the protection after the installation of the galvanized steel pipe 4 is particularly important, when the concrete pouring construction of the pier stud 6 is carried out, layered pouring is carried out, a vibrating rod is prevented from touching the galvanized steel pipe 4, technical bottom crossing is carried out on workers before the concrete is poured, the angle of a pump pipe is noticed when a pump truck pumps, the concrete is prevented from being directly sprayed onto the galvanized steel pipe 4, when the concrete pouring construction of the box girder 1 is carried out, besides the requirements of points to be noticed when the upright column is poured, the galvanized steel pipe 4 is prevented from being directly contacted with a corrugated pipe, once the contact possibly causes the prestressed steel pipe 4 to be extruded and exploded by a prestressed steel strand, when the grout is pressed in a prestressed pipeline, the grout flows into the galvanized steel pipe 4, the galvanized steel pipe 4 is blocked, and the later use is influenced;
the technological process of pre-embedding the galvanized steel pipe 4 in the box girder 1 is changed into the process of pre-embedding the galvanized steel pipe 4 to reserve a hole, and then installing the galvanized steel pipe 4, and the specific process is that firstly, after the binding of the steel bars of the box girder 1 is finished, an internal bracing template of the box girder 1 is installed, the hole of the galvanized steel pipe 4 is reserved and installed on the internal bracing template according to the designed trend of the galvanized steel pipe 4, then the galvanized steel pipe 4 is installed and fixed, namely, the manufactured galvanized steel pipe 4 is installed in the reserved hole, and the galvanized steel pipe 4 is connected with an elbow and a flange cast iron tee (connected with a bridge floor water collecting tank);
concerning the connections between the metal pipes, the metal pipes and the elbows, etc.: the pipeline connection must be tight, there is no seepage, should guarantee the pipeline is unblocked in the construction process, the pipeline length is according to the actual construction lofting is carried on; except for the combined section, the pipeline connection adopts welding, full welding is needed, and the welding quality meets the standard requirement;
and (3) embedding and avoiding measures for drainage pipelines at all parts: when the galvanized steel pipe 4 passes through the web plate and the bottom plate in the box girder 1, the prestressed pipeline must be avoided, the interval between the steel bars can be properly adjusted, and the steel bars cannot be cut; the embedding angle of the inclined pipeline is correspondingly adjusted according to the conditions of designing and avoiding the steel corrugated pipe, and the space between local stirrups can be slightly adjusted; the position of the vertical pipeline in the pier stud 6 can be properly adjusted according to the arrangement of the steel bars in the pier stud 6, but the support cushion block and the limiting device on the top of the upright stud must be avoided, and the distance between the main bars can be properly adjusted to facilitate installation;
after the pipeline is arranged according to the position in the construction, if reinforcement electric welding or cutting is needed, protective measures must be taken to ensure that the pipeline is not damaged by electric welding slag and high-temperature cutting gas, and before the box girder 1 is blocked, a drainage pipeline should be checked to ensure that the pipeline is intact and unblocked.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides an urban bridge buries formula outlet pipe installation and construction method, includes case roof beam (1), galvanized steel pipe (4) and pier stud (6), its characterized in that: the below both sides of case roof beam (1) all are provided with bridging pad (5), settle the below at bridging pad (5) pier stud (6), inside and the inside both sides of pier stud (6) of both sides of case roof beam (1) are run through respectively in galvanized steel pipe (4), and are connected with between the galvanized steel pipe (4) that pass in case roof beam (1) and the pier stud (6) and drain pipe link (2).
2. The urban bridge buried drain pipe installation and construction method according to claim 1, characterized in that: the drain pipe connecting end (2) comprises a rubber connecting pipe (3) and a woven steel wire (301), and the woven steel wire (301) is arranged on the inner side of the rubber connecting pipe (3).
3. The urban bridge buried drain pipe installation and construction method according to claim 2, characterized in that: the rubber connecting pipe (3) is inserted into the pipe orifice of the galvanized steel pipe (4), and the galvanized steel pipe (4) penetrating through the box girder (1) and the galvanized steel pipe (4) penetrating through the pier stud (6) form a communicating structure through the rubber connecting pipe (3).
4. The urban bridge buried drain pipe installation and construction method according to claim 1, characterized in that: one side that the below of the galvanized steel pipe (4) that passes in the pier stud (6) is close to the vertical central line of pier stud (6) is connected with maintenance valve (7), and galvanized steel pipe (4) bottom that passes in pier stud (6) is connected with escape canal (8).
5. The urban bridge buried drain pipe installation and construction method according to claim 4, characterized in that: the end part of the drainage ditch (8) extending outwards is provided with a water accumulation groove (10), and the outer side of the water accumulation groove (10) is fixed with a wall type guardrail (11).
6. The urban bridge buried drain pipe installation and construction method according to claim 4, characterized in that: the service valve (7) is arranged above the ground line (9), and the drainage ditch (8) is arranged below the ground line (9).
7. The urban bridge buried drain pipe installation and construction method according to claim 1, characterized in that: the construction process flow of the urban bridge buried drain pipe is as follows:
the first stage, the pier column construction stage of the buried drain pipe;
the second stage, the construction stage of the joint section of the box girder and the upright post of the water drain pipe;
and in the third stage, burying the water drain pipe in the box girder.
8. The urban bridge buried drain pipe installation and construction method according to claim 7, characterized in that: the first stage comprises the following specific implementation steps:
a. binding pier column steel bars;
b. the vertical water drain pipe is buried, avoids reinforcing steel bars in the pier stud, and is butted with the pipeline by using a right-angle three-way pipe and an elbow;
c. the maintenance valve is arranged with the water outlet;
d. the positioning ribs position the pipeline on the pier stud reinforcing steel bars;
e. the maintenance valve and the water outlet are blocked;
f. pouring pier column concrete.
9. The urban bridge buried drain pipe installation and construction method according to claim 7, characterized in that: the second stage and the third stage are implemented by the following steps:
a. finishing the laying of the bottom die of the cast-in-place box girder;
b. the drain pipes of the preformed holes on the pier columns are correspondingly embedded with the box girder drain pipes, and are butted by a rubber connecting pipe;
c. binding box girder reinforcing steel bars;
d. the non-standard elbow is connected with the vertical drain pipe;
e. burying a drain pipe in the flange plate;
f. pouring the box girder for the first time;
g. the water accumulating tank is connected with the pipeline;
h. and (5) casting the box girder for the second time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911203151.6A CN110820587A (en) | 2019-11-29 | 2019-11-29 | Urban bridge buried drain pipe installation construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911203151.6A CN110820587A (en) | 2019-11-29 | 2019-11-29 | Urban bridge buried drain pipe installation construction method |
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Cited By (4)
| 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 |
| CN113389151A (en) * | 2021-06-08 | 2021-09-14 | 武汉爆破有限公司 | Full-section hydraulic blasting demolition method for urban viaduct |
| CN113668380A (en) * | 2021-08-26 | 2021-11-19 | 重庆大学 | Built-in drainage device and viaduct |
| CN114808681A (en) * | 2022-05-17 | 2022-07-29 | 中铁三局集团第二工程有限公司 | Construction method of bridge buried drain pipe |
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| CN114808681A (en) * | 2022-05-17 | 2022-07-29 | 中铁三局集团第二工程有限公司 | Construction method of bridge buried drain pipe |
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Application publication date: 20200221 |