CN221297634U - Structure of arched culvert for road - Google Patents
Structure of arched culvert for road Download PDFInfo
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- CN221297634U CN221297634U CN202323246227.8U CN202323246227U CN221297634U CN 221297634 U CN221297634 U CN 221297634U CN 202323246227 U CN202323246227 U CN 202323246227U CN 221297634 U CN221297634 U CN 221297634U
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- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 56
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a road arch culvert structure, which solves the problem of high construction difficulty in the existing culvert construction technology. The arched culvert structure comprises a cast-in-situ reinforced concrete bottom plate, prefabricated wall bodies and prefabricated top plates, wherein protruding parts are arranged on two sides of the cast-in-situ reinforced concrete bottom plate, grouting grooves are formed in the protruding parts, sealing plates are arranged on mounting surfaces of the lower edges of the prefabricated wall bodies, the upper half parts of the sealing plates are prefabricated in the prefabricated wall bodies, the lower half parts of the sealing plates are exposed and inserted into the grouting grooves, and the upper edges of the prefabricated wall bodies are matched with the prefabricated top plates and mechanically connected through high-strength bolts. In the technology, the foundation base adopts steel-concrete cast-in-situ combination, and has the effects of convenient and quick formwork support and pouring. The wall body and the top adopt prefabricated components to carry out hoisting construction, and the prefabricated components have the advantages of being convenient and quick to construct.
Description
Technical Field
The utility model relates to the technical field of culvert construction.
Background
In the existing culvert construction technology, on-site formwork supporting and pouring are needed, and particularly when a cave roof is constructed, a hall-filling frame is needed to be built for construction, and reference is made to fig. 1. For example, when the wall 01 and the top plate 02 are erected, the wall form is considered to be continuously installed, and the two end blocking molds of the wall are fixed at the deformation joint by using the encryption pull rod. The top plate formwork is erected with full-hall supporting frames 03, the bidirectional spacing is 90cm, the top plate formwork is formed by splicing large glued nine-clamp formworks with delta=2cm thickness, 100 x 100 wood beams are used as back edges, and a pipe scaffold with the spacing of 30cm and phi 48 Man Tanggang is used as a supporting system. The template joint is plugged by a method of clamping double-sided adhesive tape or smearing glass cement so as to prevent slurry leakage. Therefore, the building of the templates, the supports and the full-hall frames consumes a great deal of manpower and material resources.
Another construction technology is assembly construction, refer to CN116043734a and discloses an anti-displacement anti-seepage system for assembly culvert connection, an upper opening-shaped communicating groove is formed on the end face of a prefabricated section, a sealing material injection hole, an air outlet and a sealing material discharge hole are formed at the top of the prefabricated section, the sealing material injection hole, the air outlet and the sealing material discharge hole are all communicated with the opening-shaped communicating groove, coupling transverse rings are arranged in the two side communicating grooves of the opening-shaped communicating groove, each coupling transverse ring comprises an anchoring end and a connecting end, the anchoring end is pre-buried in the prefabricated section, the connecting end extends into the opening-shaped communicating groove, one prefabricated section and the coupling transverse ring of the other prefabricated section are paired to form a coupling connection pair, and a coupling vertical rib is inserted into the ring formed by the coupling connection pair to form a coupling constraint framework; and filling a filling sealing material into the mouth-shaped communication groove to form the final displacement and dislocation preventing device.
The assembly type construction adopts the caterpillar type splicing mode for construction, and displacement, staggering, leakage and the like caused by uneven settlement of the foundation are easy to occur.
Still another is half assembled construction, and refer to CN218911176U and disclose an assembled road arch culvert structure, including the installation base: the mounting base is characterized in that mounting grooves are formed in the left end and the right end of the mounting base and in the upper side of the mounting base, a mounting plate is arranged on the inner side of the mounting groove, arch plates are fixedly connected to the upper side of the mounting plate, and a stabilizing unit is arranged between the two arch plates. Analysis found that this technique was not practical.
Disclosure of utility model
In order to solve the defects in the prior art, the utility model provides a road arch culvert structure, which solves the problem of high construction difficulty in the existing culvert construction technology.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides a road arch culvert structure, includes cast-in-situ reinforced concrete bottom plate, prefabricated wall body and prefabricated roof, its characterized in that, cast-in-situ reinforced concrete bottom plate both sides have the bellying to and have the grout recess at the bellying, the installation face department of the lower border of prefabricated wall body is equipped with the closing plate, the upper half of closing plate is prefabricated in prefabricated wall body, and the lower half exposes and inserts in the grout recess, prefabricated wall body upper border and prefabricated roof cooperation and use high strength bolt to carry out mechanical connection.
Further, the prefabricated roof comprises corrugated steel plate, saddle bar seat, arc reinforcing bar, steel sheet and concrete, wherein, the corrugated steel plate is the arc, saddle bar seat lower part supporting legs welds on the corrugated steel plate, and top high spot and arc reinforcing bar welding, and wherein, the arc reinforcing bar has the same radian with the corrugated steel plate, at the both ends welded fastening steel sheet of corrugated steel plate, is the concrete in the space above the corrugated steel plate.
Further, the upper edge of the prefabricated wall body is a mounting surface with an inclined angle, and a bolt hole vertically penetrating through the mounting surface is formed in the mounting surface.
Further, the mounting surface has a mounting groove, and the mounting groove is provided with asphalt hemp threads.
Further, two threaded sleeves are respectively arranged on two sides of the prefabricated wall body.
Further, the vertical surfaces at the two sides of the prefabricated wallboard are designed to be rabbets, and the arc-shaped end surfaces at the two sides of the prefabricated top plate are designed to be rabbets.
Further, the prefabricated top plate is provided with a threaded sleeve for hoisting.
Further, the steel plate is provided with connecting perforations.
Further, the protruding part is in mortar bonding connection with the prefabricated wallboard.
Further, the sealing plate is a galvanized steel plate or a rubber water stop plate.
The beneficial effects of the utility model are as follows:
In the technology, the foundation base adopts steel-concrete cast-in-situ combination, and has the effects of convenient and quick formwork support and pouring. The wall body and the top adopt prefabricated components to carry out hoisting construction, and the prefabricated components have the advantages of being convenient and quick to construct.
The technology absorbs the respective advantages of cast-in-place construction and assembly construction, and is a semi-assembly construction structure.
The technology respectively utilizes the advantages of foundation cast-in-situ construction and wall body and top assembly construction, and the foundation has the characteristics of reliability, stability and easy construction, and the wall body and the top have the advantage of quick assembly.
Drawings
Fig. 1 is a prior art construction.
Fig. 2 is a foundation structure diagram.
Fig. 3 is a perspective view of a prefabricated wall body.
Fig. 4 is a perspective view of a prefabricated roof panel.
Fig. 5 is a partial cut-away view of a prefabricated roof panel.
Fig. 6 is a construction view of the culvert apparatus.
FIG. 7 is a cross-sectional view of a culvert apparatus.
In the figure:
01 wall body, 02 top plate, 03 full-hall supporting frame,
100 Cast-in-situ reinforced concrete bottom plates, 110 convex parts, 111 grouting grooves,
200 Prefabricated wall body, 210 sealing plate, 220 installation surface, 221 bolt hole, 222 asphalt hemp thread, 230 screw sleeve, 240 tongue-and-groove design,
300 Prefabricated top plate, 310 corrugated steel plate, 320 saddle steel bar seat, 330 arc steel bar, 340 steel plate, 350 concrete, 341 connecting perforation, 342 high-strength bolt, 311 tongue-and-groove design,
400 Support the diagonal rods.
Detailed Description
The present embodiment will be described in detail with reference to the construction process.
The construction procedure of the culvert device is as follows: measuring and setting out, foundation excavation, foundation bearing capacity detection, stone cushion layer, concrete cushion layer, box culvert bottom plate formwork support and cast-in-situ construction, hoisting of a prefabricated wall body and a prefabricated top plate, open channel repair and auxiliary construction, bench back backfill, checking and acceptance.
A detailed description of one embodiment of the present technology will be given with reference to fig. 2 to 7 of the accompanying drawings.
S1 measurement lofting
Before the foundation is excavated, according to the coordinates and the dimensions shown in the drawing, the center line of the box culvert and the excavation boundary line of the foundation are discharged, temporary level points are laid and used as the elevation control basis in the construction process of the box culvert, and the center line of the box culvert is led to the wood piles at the two ends so as to conveniently perform center line inspection at any time.
S2 foundation excavation and support
This box culvert foundation earthwork adopts the backhoe excavator to excavate, and the backhoe adopts the spirit level to observe at any time in the excavation process, for not disturbing the base soil, should reserve 20cm thick soil and clear up the manual work when the backhoe excavates. If the underground water seeps out from the foundation tank, a drainage open channel is arranged at one side of the tank bottom, a broken stone water filtering layer is paved, the accumulated water is led to an end water collecting pit, and a submersible pump is adopted to pump out of the foundation tank.
The depth of the box culvert is 3.2m, the surrounding buildings and pipelines are not affected, enough slope releasing conditions are provided, the roadbed is subjected to cement mixing pile foundation treatment, and the soil body is relatively stable. Foundation trench excavation is carried out according to 1:1, carrying out slope excavation, reserving 50cm wide working surfaces on each side, and building slope protection by adopting bagged soil along the excavation slope at any time in the excavation process.
S3 foundation bearing capacity detection
After the foundation pit is dug to the designed elevation, the cement mixing pile composite foundation is detected, and the elevation, the size and the axis position of the foundation are checked.
S4, paving a broken stone cushion layer and pouring a concrete cushion layer
And after the composite foundation of the stirring pile is detected to be qualified, paving a broken stone cushion layer in time. The broken stone is purchased and transported to one side of a foundation tank on site, is distributed to the tank bottom by adopting a digging machine, and is manually paved and leveled to the designed elevation.
And (5) supporting a cushion layer template and pouring a concrete cushion layer. The cushion concrete is transported to the site by a commercial concrete stirring transport vehicle, is manually molded by the cooperation of a chute, is vibrated and compacted by an inserted vibrator, and is manually leveled.
S5 box culvert bottom plate formwork and pouring construction
The box culvert bottom plate is formed by one-step formwork supporting, concrete pouring is carried out at two intervals, delta=1.8 cm thick glued nine clamping plates are adopted as the formwork, 80 x 100 wood beams are used for upper, middle and lower wood beams and back edges, short steel pipes are used for clamping and beating the outer sides of the wood beams into soil and supporting the soil walls of foundation pit slopes, and the intervals are 50cm. The inner side template support can be formed by welding reinforcing steel bar supporting feet on the reinforcing steel bars of the bottom plate, and the steel pipes are adopted for supporting. And after the template is erected, binding the bottom plate steel bars, and reserving side wall steel bars. The concrete is transported to a pouring place by adopting a stirring transport vehicle, the concrete is poured into a mould by using a chute, and the inserted vibrating rod is vibrated in layers and compacts.
After the first foundation slab concrete pouring molding, pressing the protruding parts on two sides into the wooden purlines, knocking out the wooden purlines after curing is finished, and forming grouting grooves.
The template joint is plugged by a method of clamping double-sided adhesive tape or smearing glass cement so as to prevent slurry leakage. And binding the roof steel bars after the roof template is subjected to supervision, inspection and acceptance.
Before concrete pouring, sundries and garbage in the template should be cleaned and washed clean.
Binding the reinforcement cage and binding an embedded part before pouring, wherein the embedded part is a thick steel plate and a pulling-resistant bolt.
After the concrete strength reaches 70%, the mould can be removed, and the cast-in-situ reinforced concrete bottom plate 100 is formed after the mould is removed, referring to fig. 2.
The cast-in-place reinforced concrete floor 100 after molding has protrusions 110 on both sides for installation of prefabricated walls. And a grouting groove 111 in the boss.
S6 hoisting of prefabricated wall body and prefabricated top plate
The prefabricated wall body 200 and the prefabricated top plate 300 are steel-concrete prefabricated components, are prefabricated and formed in a factory, and are constructed by adopting a hoisting and assembly construction process, specifically, the hoisting is divided into 9 sections, and each section is separated according to a deformation joint and keeps consistent with the bottom plate up and down.
Referring to fig. 3, a prefabricated wall body 200, which is a reinforced concrete prefabricated member, has a reinforcement cage inside. At the mounting surface of the lower edge of the prefabricated wall body 200, a sealing plate 210 is prefabricated, and the sealing plate is a galvanized steel plate or a rubber water stop plate. The upper half of the sealing plate 210 is prefabricated in the prefabricated wall body, and the lower half is exposed to be smoothly inserted into the grouting groove 111. The top edge of the prefabricated wall panel 200 has a mounting surface 220 with an angle of inclination, for example, 30 degrees. And a bolt hole 221 vertically penetrating the mounting surface is provided at the mounting surface, the bolt hole being used for fastening the prefabricated top panel 300. The bolt holes are multiple, and are arranged along the length direction of the prefabricated wall body. Two elongated mounting grooves are provided on both sides of the bolt hole, specifically, along the length direction, for mounting the asphalt hemp threads 222, that is, one asphalt hemp thread is placed in each of the two mounting grooves during the construction process. The asphalt hemp thread is used for preventing water seepage on the assembly surface between the prefabricated wall body 200 and the prefabricated top plate 300.
Two threaded sleeves 230 are respectively arranged on two sides of the prefabricated wall body, the threaded sleeves 230 can be used for installing hanging rings in a hanging stage, the hanging rings can be used as installation points for supporting inclined rods 400 in an installation stage, and four supporting inclined rods are respectively arranged on two sides for supporting, referring to fig. 6.
The vertical faces on both sides of the prefabricated wall panel 200 described above are formed with staggered tongue and groove designs 240, with the prefabricated wall panels between adjacent panels being engaged with each other.
The prefabricated top plate 300, which uses a deck plate 310, saddle bar holders 320, arc bars 330, a steel plate 340 and concrete 350, has a reinforced concrete structure as a whole. Specifically, a corrugated steel plate 310 is used as a template for the prefabricated roof panel, and the corrugated steel plate 310 is bent in the direction of the ridge to form an arc-shaped plate having a certain curvature. The saddle bar seat 320 is welded above the corrugated steel plate, the lower supporting leg of the saddle bar seat is welded and fixed on the corrugated steel plate, and the upper high point is welded with the arc-shaped bar, wherein the arc-shaped bar 330 has the same radian as the corrugated steel plate. Wherein, be provided with tens saddle reinforcing bar seat between arc reinforcing bar and the ripple steel sheet correspondingly, form three-dimensional structure. Two steel plates 340 are welded and fixed at both ends of the corrugated steel plate, specifically, the steel plates are matched with the upper end mounting surfaces of the prefabricated wall panels. The steel plate and the end parts of the arc-shaped steel bars are welded and fixed, and concrete 350 is poured and filled above the corrugated steel plate after the steel plate and the end parts of the arc-shaped steel bars are fixed, and the finally formed model is shown as 4. For ease of illustration, fig. 5 is a cut-away view of fig. 4 for illustration of internal structure.
The prefabricated top plate 300 has four threaded sleeves for hoisting on its upper end surface for auxiliary hoisting.
The steel plates at both ends of the prefabricated top plate 300 are provided with connection holes 341 for fastening the high-strength bolts 342.
The two arc end surfaces of the prefabricated top plates 300 are in staggered tongue-and-groove designs 311, and the prefabricated top plates between adjacent prefabricated top plates are meshed with each other.
The bottom plate is formed by casting in situ and has a length. The prefabricated wallboard length is about ten meters, and a plurality of prefabricated wallboards can be completed in one culvert. The prefabricated roof is of small size, typically no more than 3 meters in length.
Prefabricated wallboard and prefabricated roof in this step adopt mill's prefabricated shaping, and wherein prefabricated wall vertical fixed mounting is two relative settings, and prefabricated roof lock is at the top.
Firstly, the grouting grooves 111 of the protruding portions of the bottom plate are filled with adhesive mortar, the prefabricated wall panel 200 is hoisted using the hoisting equipment, and in the hoisting process, the exposed portions of the galvanized steel sheet or the rubber water stop sheet below are coated with the adhesive mortar locally and then mounted on the protruding portions below, and the galvanized steel sheet or the rubber water stop sheet is inserted into the grouting grooves 111. One hanging buckle is removed and the prefabricated wall panel 200 is supported by using the supporting diagonal rods 400, so that the replacement of four supporting diagonal rods is gradually completed.
Then, asphalt twine 222 is placed at the top mounting surface of the prefabricated wall panel, and is arranged uninterruptedly along the direction of the culvert, and the prefabricated top panel is hoisted and quickly mounted by high-strength bolts 342.
Further, waterproof slurry is pre-paved at the matching surface of the prefabricated wallboard and the prefabricated top plate, so that the prefabricated wallboard is further waterproof.
The concrete structure is arranged above the corrugated steel plate, and the steel bar truss is welded above the corrugated steel plate, is arc-shaped and is consistent with the radian of the corrugated steel plate, so that the corrugated steel plate has enough supporting rigidity.
Concrete is poured and covered on the corrugated steel plate, and the thickness of the concrete is not less than 10 cm. The concrete layer 8 is high-performance concrete or common concrete.
The junction of the prefabricated wallboard and the box culvert bottom plate is filled with oil-immersed hemp batting, and the asphalt ointment is sealed, so that the waterproof performance is further improved.
S7 open channel recovery and auxiliary engineering construction
The inlet and outlet on two sides of the box culvert are connected with the current drainage open channel, and M10 slurry rubble is adopted for masonry.
S8 bench back filling soil
After the box culvert is constructed, the water-permeable materials are adopted for layered symmetrical ramming and filling according to the design and standard requirements in the height range of the box culvert foundation and the wall bodies at the two sides. The bench back filling soil is compacted by adopting a small road roller or an impact vibration rammer. The degree of compaction must not be less than 96%.
S9, checking and accepting.
Example two
The difference between this embodiment and the first embodiment is that: the prefabricated top plate is a cast-in-situ integrated plate. Specifically, the roof in this embodiment is a lightweight steel structure formed by welding corrugated steel plates, saddle steel bar bases, arc steel bars and steel plates, and is not filled with concrete, and the concrete is filled by in-situ pouring.
Step S6 of the present embodiment has a part of the difference from the first embodiment, and is described only.
In the construction process, the top plates are quickly installed by adopting high-strength bolts until all the top plates are installed, hot oil asphalt cloth is used for processing at the splicing seams of the corrugated steel plates between adjacent plates, and specifically, the asphalt cloth is bonded along the splicing seams, and the bonding performance of the asphalt cloth is enhanced by using a fire baking mode. And (5) tearing off the packaging plastic adhesive tape after the asphalt is cooled.
And finally, pouring concrete in situ in the die cavity formed above. After finishing operations, a substantially arcuate top is formed. Most preferably, the top plate has an equal thickness design.
The above examples are provided for illustrating the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and those skilled in the art should not depart from the spirit of the present utility model in all kinds of modifications and improvements that fall within the scope of the present utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a road arch culvert structure, includes cast-in-situ reinforced concrete bottom plate, prefabricated wall body and prefabricated roof, its characterized in that, cast-in-situ reinforced concrete bottom plate both sides have the bellying to and have the grout recess at the bellying, the installation face department of the lower border of prefabricated wall body is equipped with the closing plate, the upper half of closing plate is prefabricated in prefabricated wall body, and the lower half exposes and inserts in the grout recess, prefabricated wall body upper border and prefabricated roof cooperation and use high strength bolt to carry out mechanical connection.
2. The pavement arch culvert structure of claim 1 wherein the prefabricated roof is comprised of corrugated steel plate, saddle bar base, arc bar, steel plate and concrete, wherein the corrugated steel plate is arc plate, saddle bar base lower support feet are welded on the corrugated steel plate, upper high points are welded with the arc bar, wherein the arc bar has the same radian as the corrugated steel plate, steel plates are welded at both ends of the corrugated steel plate, and concrete is in the space above the corrugated steel plate.
3. The pavement arch culvert construction of claim 2 wherein the upper edge of the prefabricated wall is a mounting surface having an angle of inclination and wherein the mounting surface is provided with bolt holes extending perpendicularly therethrough.
4. The pavement arch culvert construction of claim 3 wherein the mounting surface has mounting slots that provide asphalt twines.
5. The pavement arch culvert construction of claim 2 wherein two threaded sleeves are provided on each side of the prefabricated wall.
6. The pavement arch culvert structure of claim 2 wherein the vertical surfaces of the two sides of the prefabricated wall are tongue-and-groove design, and the arc end surfaces of the two sides of the prefabricated roof are tongue-and-groove design.
7. The roadway arch culvert construction of claim 2 wherein the prefabricated roof has a threaded sleeve for lifting.
8. The pavement arch culvert structure of claim 2 wherein the steel plate is provided with connecting perforations.
9. The roadway arch culvert construction of claim 2 wherein the boss is mortar bonded to the prefabricated wall.
10. The roadway arch culvert construction of claim 2 wherein the sealing plate is galvanized steel or rubber water stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323246227.8U CN221297634U (en) | 2023-11-29 | 2023-11-29 | Structure of arched culvert for road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323246227.8U CN221297634U (en) | 2023-11-29 | 2023-11-29 | Structure of arched culvert for road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221297634U true CN221297634U (en) | 2024-07-09 |
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ID=91746013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323246227.8U Active CN221297634U (en) | 2023-11-29 | 2023-11-29 | Structure of arched culvert for road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221297634U (en) |
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2023
- 2023-11-29 CN CN202323246227.8U patent/CN221297634U/en active Active
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