CN211849550U - Pile structure for engineering bridge - Google Patents
Pile structure for engineering bridge Download PDFInfo
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- CN211849550U CN211849550U CN202020328676.4U CN202020328676U CN211849550U CN 211849550 U CN211849550 U CN 211849550U CN 202020328676 U CN202020328676 U CN 202020328676U CN 211849550 U CN211849550 U CN 211849550U
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Abstract
The utility model discloses a stake structure especially discloses a stake structure for engineering bridge, belongs to municipal highway engineering structures design and construction technical field. The pile column structure for the engineering bridge is relatively simple in structure and relatively convenient to construct and operate. The pile structure comprises a pile foundation, a cover beam and an anti-corrosion transition connecting column, wherein the pile foundation is inserted into a foundation, and the cover beam is arranged on the pile foundation through the anti-corrosion transition connecting column.
Description
Technical Field
The utility model relates to a pile structure especially relates to a pile structure for engineering bridge, belongs to municipal highway engineering structures design and construction technical field.
Background
In bridge engineering construction, conditions such as bridge spanning, highway passing below, high slope, deep hole pile foundation, construction period rush and the like are often encountered, and the problems that construction quality needs to be guaranteed, construction period needs to be shortened, and cost needs to be saved are inevitably involved. The design theory, construction quality and pier stud appearance quality of pile foundation, pier stud directly influence the life of bridge, and construction cost, and the high support frame of supporting box roof beam can increase the construction degree of difficulty and increase the potential safety hazard.
Usually, the bridge substructure is designed into a pile foundation, a bearing platform, a pier stud and a capping beam structure, the structure is clear, the stress is clear, but a cutting section needs to be dug deeply at the intersection of the bridge, the side slope is steep, and the erection of a supporting frame of a box girder is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the pile column structure for the engineering bridge is relatively simple in structure and relatively convenient to construct and operate.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a pile structure for engineering bridge, pile structure include pile foundation, bent cap and anticorrosive transition spliced pole, the pile foundation peg graft in the ground, the bent cap pass through anticorrosive transition spliced pole arrange the pile foundation on.
Furthermore, the pile foundation is a cast-in-place concrete pile foundation inserted in the deep covering layer foundation.
The anti-corrosion transition connecting column comprises a transition column and a protective layer coated on the outer side of the transition column, and is supported between the pile foundation and the cover beam through the transition column.
Further, the transition column is an extending column of the pile foundation upwards.
In a preferable mode of the above scheme, the protective layer is a protective steel cylinder coated on the outer side of the transition column.
Furthermore, the anti-corrosion transition connecting column is a concrete pile cast in the foundation of the shallow covered excavation layer in a cast-in-place mode.
The preferable mode of the scheme is that the protective cylinder coated on the outer side of the concrete pile is a protective steel cylinder pressed into a shallow-covering excavation layer foundation before pouring.
Furthermore, an anti-aging waterproof glue layer is respectively arranged at the joint of the protective steel cylinder, the cover beam and the foundation.
The utility model has the advantages that: this application replaces cushion cap and pier stud through increase on the basis of pile foundation, bent cap to set up anticorrosive transition spliced pole, then will the pile foundation directly peg graft in the ground, and make the bent cap pass through anticorrosive transition spliced pole arrange the pile foundation on. Therefore, the bearing platform and the pier stud are directly taken through the anti-corrosion transition connecting column, so that the structure of the existing pile structure can be effectively simplified, the construction operation of the pile structure is relatively more convenient, the quality is easier to guarantee, and the purposes of shortening the construction period, reducing the construction difficulty, improving the efficiency and saving the cost are achieved. Meanwhile, the bearing platform and the single pier column are directly replaced by the plurality of anti-corrosion transition connecting columns, so that the aims of improving the stability of the bridge and prolonging the service life of the bridge are fulfilled.
Drawings
Fig. 1 is the utility model discloses a structural schematic for engineering bridge's stake structure.
Labeled as: the anti-corrosion foundation comprises a pile foundation 1, a cover beam 2, an anti-corrosion transition connecting column 3, a foundation 4, a transition column 5, a protective layer 6, a shallow-covering excavation layer foundation 7 and an anti-aging waterproof glue layer 8.
Detailed Description
The utility model provides a pile structure for engineering bridge that structure is simple relatively, and construction operation is convenient relatively as shown in figure 1. The pile structure comprises a pile foundation 1, a cover beam 2 and an anti-corrosion transition connecting column 3, wherein the pile foundation 1 is inserted into a foundation 4, and the cover beam 2 is arranged on the pile foundation 1 through the anti-corrosion transition connecting column 3. This application replaces cushion cap and pier stud through increase on the basis of pile foundation, bent cap to set up anticorrosive transition spliced pole, then will the pile foundation directly peg graft in the ground, and make the bent cap pass through anticorrosive transition spliced pole arrange the pile foundation on. Therefore, the bearing platform and the pier stud are directly taken through the anti-corrosion transition connecting column, so that the structure of the existing pile structure can be effectively simplified, the construction operation of the pile structure is relatively more convenient, the quality is easier to guarantee, and the purposes of shortening the construction period, reducing the construction difficulty, improving the efficiency and saving the cost are achieved. Meanwhile, as the corrosion-resistant transition connecting columns are directly taken through a plurality of corrosion-resistant transition connecting columnsSubstitute for Chinese traditional medicineThe bearing platform and the single pier stud are adopted, so that the purposes of improving the stability of the bridge and prolonging the service life of the bridge are achieved.
In the above embodiment, the pile foundation 1 is a cast-in-place concrete pile foundation inserted into the deep coverage layer foundation. Correspondingly, the improved scheme provided by the application is that the adopted anticorrosion transition connecting column 3 directly replaces a bearing platform and a pier column in the prior art. For this reason, in order to furthest's simplification this application anticorrosive transition spliced pole 3's structure, and then the overall structure of simplified pile structure, this application anticorrosive transition spliced pole 3 include transition post 5 and the cladding at the inoxidizing coating 6 in this transition post 5 outside, anticorrosive transition spliced pole 3 pass through transition post 5 support pile foundation 1 with the bent cap 2 between. Meanwhile, for construction convenience, the transition column 5 is an upward extending column of the pile foundation 1. The protective layer 6 is a protective steel cylinder coated on the outer side of the transition column 5.
Of course, combine the concrete condition at present bridge construction site, anticorrosive transition spliced pole 3 described in this application be the concrete pile post of cast-in-place in shallow covering excavation layer ground 7. The protective cylinder coated on the outer side of the concrete pile is a protective steel cylinder pressed into the foundation 7 of the shallow-covering excavation layer before pouring. And an anti-aging waterproof glue layer 8 is also respectively arranged at the joint of the protective steel cylinder and the capping beam 2 and the foundation 4.
To sum up, adopt the above-mentioned stake structure that this application provided still to have following advantage, cushion cap and pier stud have been cancelled to the pile of a casing stake of this application, and substructure is direct to be become by bent cap and pile of a casing stake, simplifies the structure, shortens the construction process, changes into double columns by original single pier stud, has eliminated the hidden danger of side direction toppling of case roof beam, and the case roof beam construction is gone on before the construction of underpass road, avoids high support frame, also avoids high support frame to set up on the abrupt slope, improves construction safety, reduces the construction degree of difficulty, raises the efficiency, practices thrift the cost.
Specifically, it is:
1. the pile structure of the pile casing comprises the pile casing and the upper section of the pile foundation, and replaces a bearing platform and a pier stud structure, so that the pier stud is converted into a multi-column form, the box girder of the upper structure is stressed in a multi-point balanced manner, the lateral overturning resistance of the box girder is enhanced, and the overall safety of the bridge structure is improved.
2. In the process of forming the pile, the construction of the pier stud is completed, and the manufacturing of the pile casing and the manufacturing of the reinforcement cage can be synchronously performed with the hole forming operation, so that the construction period is greatly shortened.
3. When the superstructure box girder is constructed, when the off-site prefabrication can not be carried out according to the on-site hoisting condition, the construction can be carried out according to the cast-in-place box girder, earthwork is not excavated, and only soil body flattening and hardening treatment at the bottom of the box girder is carried out, so that the engineering quantity of the box girder supporting frame erection is effectively reduced, the technical difficulty and the construction measure cost are greatly reduced, the construction safety of the supporting frame is improved, and the construction period of the box girder is shortened.
4. Under the condition of meeting the same function, the construction of the bearing platform pier stud is simplified, so the construction cost is reduced.
Example one
The pile column mainly comprises pile hole construction, pile casing manufacturing and installation, steel reinforcement cage manufacturing and installation, pile concrete pouring, earthwork excavation, pile casing cleaning, anti-aging waterproof glue smearing and pile casing coating.
The method comprises the following steps:
1. preparation work: and (4) formulating a pore-forming construction scheme according to the geological condition and the construction environment.
2. Pile foundation upper segment pore-forming: according to the scheme, a punching pile machine or a rotary excavator is used for hole forming operation, and the hole is formed to the installation position of the bottom of the pile casing at the first stage, namely the pile begins to be exposed out of the ground surface.
3. And (3) pore-forming detection: and detecting parameters such as the aperture, the verticality, the collapse hole and the like of the pile hole.
4. Manufacturing and installing a protective cylinder: and (4) processing and manufacturing the protective cylinder in an off-site manufacturing factory, detecting the precision ovality and the straightness, and transporting to a site for installation.
5. And (3) detecting the installation quality of the pile casing: and detecting the verticality and the ovality after the pile casing is installed.
6. Forming holes at the lower section of the pile foundation: mechanically forming a hole to the pile foundation bearing layer, and detecting the pile hole.
7. Hole cleaning: and removing redundant slurry and sediments at the bottom of the hole.
8. Manufacturing and installing a reinforcement cage: and (4) manufacturing the reinforcement cage on site, and installing the reinforcement cage after the reinforcement cage is qualified through inspection.
9. And (3) secondary detection of the parameters of the pile casing: and detecting the verticality and the ovality of the pile casing.
10. And continuously pouring pile foundation pile concrete.
11. Earth excavation: and excavating the earthwork of the burying protection cylinder.
12. Cleaning and modifying a protective cylinder: cleaning the protective cylinder, sealing the upper opening and the lower opening with anti-aging waterproof glue, polishing the protective cylinder, and performing rust prevention and veneer coating.
The specific operation process is as follows,
1. preparation work: and (4) formulating a construction scheme according to the geological condition and the construction environment.
2. Pile foundation upper segment pore-forming: according to the scheme, a punching pile machine or a rotary excavator is used for hole forming operation, and the hole is formed in the pile column to the installation position at the bottom of the pile casing in the first stage, namely the pile begins to be exposed out of the ground surface part B.
3. And (3) pore-forming detection: detecting parameters such as aperture, verticality, collapse and the like of pile hole
4. Manufacturing and installing a protective cylinder: and (4) processing and manufacturing the protective cylinder in an off-site manufacturing factory, detecting the precision ovality and the straightness, and transporting to a site for installation.
5. And (3) detecting the installation quality of the pile casing: and detecting the verticality and the ovality after the pile casing is installed.
6. Forming holes at the lower section of the pile foundation: mechanically forming a hole to the pile foundation bearing layer, and detecting the pile hole.
7. Hole cleaning: and removing redundant slurry and sediments at the bottom of the hole.
8. Manufacturing and installing a reinforcement cage: and (4) manufacturing the reinforcement cage on site, and installing the reinforcement cage after the reinforcement cage is qualified through inspection.
9. And (3) secondary detection of the parameters of the pile casing: and detecting the verticality and the ovality of the pile casing.
10. And continuously pouring pile foundation and pile concrete.
11. Earth excavation: the earth burying the casing is excavated, taking care not to damage the casing surface.
12. Cleaning and modifying a protective cylinder: cleaning the protective cylinder, sealing the upper opening and the lower opening with anti-aging waterproof glue, polishing the protective cylinder, and performing rust prevention and veneer coating.
Claims (8)
1. The utility model provides a stake structure for engineering bridge which characterized in that: the pile structure include pile foundation (1), bent cap (2) and anticorrosive transition spliced pole (3), pile foundation (1) peg graft in ground (4), bent cap (2) pass through anticorrosive transition spliced pole (3) arrange pile foundation (1) on.
2. The pile structure for engineering bridges of claim 1, characterized in that: the pile foundation (1) is a cast-in-place concrete pile foundation inserted in the deep coverage layer foundation.
3. The pile structure for engineering bridges of claim 2, characterized in that: anticorrosive transition spliced pole (3) including transition post (5) and cladding inoxidizing coating (6) in this transition post (5) outside, anticorrosive transition spliced pole (3) pass through transition post (5) support be in pile foundation (1) with bent cap (2) between.
4. The pile structure for engineering bridges of claim 3, characterized in that: the transition column (5) is an extending column of the pile foundation (1) which extends upwards.
5. The pile structure for engineering bridges of claim 4, wherein: the protective layer (6) is a protective steel cylinder coated on the outer side of the transition column (5).
6. The pile structure for an engineered bridge according to claim 1, 2, 3, 4 or 5, wherein: the anti-corrosion transition connecting column (3) is a concrete pile cast in the shallow covered excavation layer foundation (7) in situ.
7. The pile structure for engineering bridges of claim 6, characterized in that: the protective cylinder coated on the outer side of the concrete pile is a protective steel cylinder pressed into a shallow-coverage excavation layer foundation (7) before pouring.
8. The pile structure for an engineered bridge according to claim 7, wherein: and an anti-aging waterproof glue layer (8) is also respectively arranged at the joint of the protective steel cylinder and the capping beam (2) and the foundation (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328676.4U CN211849550U (en) | 2020-03-16 | 2020-03-16 | Pile structure for engineering bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328676.4U CN211849550U (en) | 2020-03-16 | 2020-03-16 | Pile structure for engineering bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211849550U true CN211849550U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020328676.4U Active CN211849550U (en) | 2020-03-16 | 2020-03-16 | Pile structure for engineering bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211849550U (en) |
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2020
- 2020-03-16 CN CN202020328676.4U patent/CN211849550U/en active Active
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