CN220486524U - Roadbed assembled anchor rod sheet pile composite structure retaining wall - Google Patents

Roadbed assembled anchor rod sheet pile composite structure retaining wall Download PDF

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Publication number
CN220486524U
CN220486524U CN202322268011.5U CN202322268011U CN220486524U CN 220486524 U CN220486524 U CN 220486524U CN 202322268011 U CN202322268011 U CN 202322268011U CN 220486524 U CN220486524 U CN 220486524U
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CN
China
Prior art keywords
retaining wall
roadbed
anchor rod
composite structure
sheet pile
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CN202322268011.5U
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Chinese (zh)
Inventor
闻艳萍
庞三余
李铭
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Sinohydro Bureau 11 Co Ltd
PowerChina 11th Bureau Engineering Co Ltd
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Sinohydro Bureau 11 Co Ltd
PowerChina 11th Bureau Engineering Co Ltd
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Priority to CN202322268011.5U priority Critical patent/CN220486524U/en
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Abstract

The utility model discloses a roadbed assembled anchor rod sheet pile composite structure retaining wall, and belongs to the technical field of retaining wall structures; the concrete foundation is provided with a reserved groove, and a prefabricated rib column is arranged in the reserved groove; the section of the prefabricated rib column is T-shaped; the inner sides of two adjacent precast rib columns are provided with precast reinforced concrete panels. The utility model changes the design of the traditional steep roadbed retaining wall structure of the transverse slope, does not need to be provided with large-scale mechanical equipment, adopts factory centralized manufacturing and prefabrication of structural members, can complete on-site assembly work through small hoisting machinery, reduces construction process, lowers construction difficulty and saves construction period.

Description

Roadbed assembled anchor rod sheet pile composite structure retaining wall
Technical Field
The utility model relates to the technical field of retaining wall structures, in particular to a roadbed assembled anchor rod sheet pile composite structure retaining wall.
Background
Aiming at the roadbed which is steep in the ground transverse slope, almost vertical, free of excavation of the left side slope and incapable of being built by the balanced type road shoulder wall, right side widening is selected; but the right side slope is also steeper, exceeding 65 degrees. The prior art generally adopts a half-bridge and pile foundation joist scheme, which is extremely difficult to construct in a steep slope section, has large horizontal deformation and high investment cost; or bridge and tunnel schemes, but the construction cost is extremely high, and a large amount of resources such as large-scale mechanical equipment and the like are required to be input, the construction period is long, and the safety risk is high.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a roadbed assembled anchor rod sheet pile composite structure retaining wall.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the roadbed assembled anchor rod sheet pile composite structure retaining wall comprises a concrete foundation, wherein a reserved groove is formed in the concrete foundation, and a prefabricated rib column is arranged in the reserved groove;
the section of the prefabricated rib column is T-shaped;
the inner sides of two adjacent precast rib columns are provided with precast reinforced concrete panels.
In some embodiments, the system further comprises an anchor rod disposed within the side slope;
the outer end of the anchor rod is connected with a pull rod penetrating to the outer side of the prefabricated rib column.
In some embodiments, the anchor rod and the pull rod are coupled by a dedicated connector.
In some embodiments, the outer end of the pull rod is provided with a nut lock;
a steel backing plate is arranged between the nut and the outer side of the prefabricated rib column;
and the outer sides of the end parts of the pull rods, the nuts and the steel backing plates are poured with closed cement mortar.
In some embodiments, the slope is provided with an excavation step thereon.
In some embodiments, the top end of the precast reinforced concrete panel is provided with a press beam.
In some embodiments, the top end of the precast reinforced concrete panel is provided with: reserved stubble-connecting reinforcing bars used for being connected with the pressing beam.
In some embodiments, the precast reinforced concrete panels are reserved with drain holes.
In some embodiments, the inner side of the precast reinforced concrete panels is filled with a crushed stone reflective layer.
In some embodiments, the outer surface of the pull rod is coated with rust-proof paint or galvanized twice and wrapped with two layers of asphalt glass cloth or asphalt hemp batting.
Compared with the prior art, the roadbed assembled anchor rod sheet pile composite structure retaining wall has the following beneficial effects.
1. The utility model relates to an assembled anchor rod sheet pile composite structure retaining wall which is designed as a structure; compared with the pile foundation trawl beam scheme, the retaining wall scheme is convenient to construct, other structures except the foundation can be assembled on site after being prefabricated, and the construction cost is lower compared with the half-bridge and pile foundation trawl beam scheme.
2. The utility model is directly prefabricated in batches by a factory, is convenient for on-site assembly, is flexible to operate, is not influenced by construction boundary conditions, and has strong adaptability; the on-site common staff can complete assembly by matching with a small amount of small hoisting equipment, so that the investment of manpower and large mechanical equipment is reduced, the working efficiency is improved, and the construction safety risk and the construction difficulty are reduced.
3. The utility model changes the design of the traditional steep roadbed retaining wall structure of the transverse slope, does not need to be provided with large-scale mechanical equipment, adopts factory centralized manufacturing and prefabrication of structural members, can complete on-site assembly work through small hoisting machinery, reduces the construction process, lowers the construction difficulty, saves the construction period, does not need to input a large amount of professional work types and large-scale mechanical equipment, and saves the investment cost.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows; and will be apparent to those skilled in the art in part based upon a review of the following; alternatively, the teachings may be directed to practice of the present utility model.
Drawings
FIG. 1 is a schematic diagram of the present utility model.
Fig. 2 is a plan view of the present utility model.
Fig. 3 is a cross-sectional view of a pre-ribbed column.
Fig. 4 is a side view of a rib post arrangement.
FIG. 5 is a cross-sectional view A-A.
FIG. 6 is a sectional view B-B.
Fig. 7 is a view showing the installation state of the anchor rod, the tie rod, and the pre-ribbed column.
Fig. 8 is a connection state diagram of the anchor rod and the pull rod.
Fig. 9 is a schematic view of a crushed stone reverse filter layer.
In the figure:
1. a concrete foundation; 11. reserving a groove; 2. prefabricating rib columns; 3. prefabricating reinforced concrete panels; 31. a water discharge hole; 4. a bolt; 41. a special connector; 5. a pull rod; 51. a nut; 52. a steel backing plate; 53. cement mortar; 6. excavating steps; 7. pressing a beam; 8. a crushed stone reverse filtering layer; 81. a clay water-blocking layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-9, a roadbed assembled anchor rod sheet pile composite structure retaining wall comprises a concrete foundation 1, wherein a reserved groove 11 is formed in the concrete foundation 1, and a prefabricated rib post 2 is arranged in the reserved groove 11.
It will be appreciated that the concrete foundation 1 is cast in place; the area of the reserved groove 11 is larger than the section of the prefabricated rib post 2; after the prefabricated rib columns 2 are installed on site, concrete materials with the same specification as the concrete foundation 1 are poured into the reserved grooves 11.
Wherein:
the concrete foundation 1 is of a strip-shaped structure and is horizontally arranged, and C25 cast-in-place concrete is adopted;
the cross-sectional dimensions are: 200cmx200cm or 100cmx200cm;
the depth of the reserved groove 11 is: 150cm or 70cm.
The embedding depth of the foundation is not less than 100cm, and the width of the front edge is not less than 150cm;
backfilling the outer side of the foundation, wherein layered compaction is required, and the compactness is not less than 90%;
the outer side of the foundation is sealed by M10 paddle stones with the thickness of 30 cm.
Further:
the section of the prefabricated rib post 2 is T-shaped;
the inner sides of two adjacent precast rib columns 2 are provided with precast reinforced concrete panels 3.
As shown in fig. 2-6; the pre-ribbed column 2 comprises a main body portion in the form of a rectangular column, and a middle projection integrally formed on one side of the main body portion.
When in installation, the middle bulge of the prefabricated rib post 2 faces the inner side of the side slope; the end parts of two adjacent precast reinforced concrete panels 3 are limited by the middle bulge to form a space; at the same time, the main body portion of the precast rib post 2 blocks the outside of the precast reinforced concrete deck 3.
Wherein:
the precast rib post 2 adopts C30 precast concrete, and the thickness of a rib post protective layer is 30mm.
As shown in fig. 1, 4 and 6; when the auxiliary columns are divided into two stages, the first stage auxiliary column is embedded into the foundation 70cm, and the second stage auxiliary column is embedded into the foundation 150cm; when the first-stage rib post is embedded into the foundation by 150cm.
Meanwhile, when two-stage prop is carried out, a 2m wide platform is arranged between an upper wall body and a lower wall body, a 2% transverse slope is arranged, and 15cm profile B35 cast-in-situ concrete is adopted for sealing.
Furthermore, it is preferable that:
the prefabricated reinforced concrete panel 3 adopts a B30 prefabricated concrete rectangular plate, the thickness is 30cm, and the section size is 99x178cm or 49x178cm.
Wherein 49x178cm is suitable for the top panel, and the reserved stubble reinforced bars are connected with the pressing beam.
In some embodiments, the device further comprises an anchor rod 4 arranged in the side slope; the outer end of the anchor rod 4 is connected with a pull rod 5 penetrating to the outer side of the prefabricated rib post 2.
It can be understood that the prefabricated rib post 2 is reserved with a pull rod hole; the anchor rods 4 are matched with the pull rods 5 to provide inward pulling force on the prefabricated rib columns 2.
Wherein, stock:
the first row of anchor rods and the second row of anchor rods adopt phi 32 common screw steel, and the tensile strength of the steel bars is not less than 330MPa; the rest anchor rods are made of phi 32 finish rolled deformed steel bars, and the tensile strength of the reinforcing steel bars is not less than 770MPa.
The anchor rods are arranged at a forward spacing of 2.0m, a vertical spacing of 2.0m, an anchor hole diameter phi 130mm and an inclination angle of <2 degrees; and (3) grouting by adopting M35 cement slurry and pressing at a pressure of 0.5-0.6 MPa.
Wherein, the pull rod:
the first and second rows of pull rods are made of phi 32 common screw steel, and the tensile strength of the steel bars is not less than 330MPa; the rest pull rods are phi 32 finish rolled deformed steel bars, and the tensile strength of the steel bars is not less than 770MPa.
The pull rods are arranged at a forward direction interval of 2.0m, a vertical interval of 2.0m and the pull rods in the bottommost row are 1m away from the basic top surface; the direction error of the pull rod is between-2 and 2 degrees.
Correspondingly, the anchor rod 4 and the pull rod 5 are connected through a special connector 41.
Further, the outer surface of the pull rod 5 is coated with antirust paint or galvanized for two times, and is wrapped with two layers of asphalt glass cloth or asphalt hemp batting.
In some embodiments, the outer end of the pull rod 5 is provided with a nut 51 locking.
Further, a steel backing plate 52 is provided between the nut 51 and the outside of the pre-ribbed column 2.
In some embodiments, the ends of the tie rod 5, the nuts 51, and the outside of the steel backing plate 52 are poured with a closed cement mortar 53.
In some embodiments, an excavation step 6 is provided on the slope.
Wherein, the side slope excavates the step in layers, and the step height is 100cm.
In some embodiments, the top end of the precast reinforced concrete deck 3 is provided with a press beam 7.
Correspondingly, the top end of the precast reinforced concrete panel 3 is provided with:
reserved stubble-connecting reinforcing bars for connection with the press beam 7.
Wherein, the pressing beam adopts C25 cast-in-situ concrete.
In some embodiments, the precast reinforced concrete deck 3 is reserved with a drain hole 31.
It can be appreciated that the drain hole is reserved when the panel is prefabricated; preferably, the drain holes d=5 cm, and the drain hole pitch is 1x2m.
In some embodiments, the inside of the precast reinforced concrete panels 3 is filled with a crushed stone reflective layer 8.
Preferably, a crushed stone reverse filter layer 8 of 50cm thickness is provided.
Further, a clay water-blocking layer 81 is provided below the crushed stone reverse filter layer 8.
In order to solve the defects existing in the prior art, the design structure of the utility model is an assembled anchor rod sheet pile composite structure retaining wall; compared with the pile foundation trawl beam scheme, the retaining wall scheme is convenient to construct, other structures except the foundation can be assembled on site after being prefabricated, and the construction cost is lower compared with the half-bridge and pile foundation trawl beam scheme.
In the utility model, the components are directly prefabricated in batches by a factory, the field assembly is convenient, the operation is flexible, the components are not influenced by construction boundary conditions, and the adaptability is strong; the on-site common staff can complete assembly by matching with a small amount of small hoisting equipment, so that the investment of manpower and large mechanical equipment is reduced, the working efficiency is improved, and the construction safety risk and the construction difficulty are reduced.
According to the utility model, the design of the conventional steep roadbed retaining wall structure of the transverse slope is changed, large-scale mechanical equipment is not required to be configured, factory centralized manufacturing and prefabrication are adopted for structural members, and the on-site assembly work can be completed through small hoisting machinery, so that the construction process is simplified, the construction difficulty is reduced, the construction period is shortened, a large amount of professional work types and large-scale mechanical equipment are not required to be input, and the investment cost is saved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The roadbed assembled anchor rod sheet pile composite structure retaining wall is characterized by comprising a concrete foundation (1), wherein a reserved groove (11) is formed in the concrete foundation (1), and a prefabricated rib column (2) is arranged in the reserved groove (11);
the section of the prefabricated rib column (2) is T-shaped;
the inner sides of two adjacent precast rib columns (2) are provided with precast reinforced concrete panels (3).
2. The roadbed assembled anchor rod and sheet pile composite structure retaining wall according to claim 1, further comprising anchor rods (4) arranged in the side slope;
the outer end of the anchor rod (4) is connected with a pull rod (5) penetrating to the outer side of the prefabricated rib column (2).
3. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 2, characterized in that the anchor rods (4) and the tie rods (5) are connected by special connectors (41).
4. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 2, characterized in that the outer end of the pull rod (5) is provided with a nut (51) for locking;
a steel backing plate (52) is arranged between the nut (51) and the outer side of the prefabricated rib column (2);
and the end part of the pull rod (5), the nut (51) and the outer side of the steel backing plate (52) are poured with closed cement mortar (53).
5. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 2, characterized in that the side slope is provided with an excavation step (6).
6. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 1, characterized in that the top end of the precast reinforced concrete panel (3) is provided with a press beam (7).
7. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 6, characterized in that the top end of the precast reinforced concrete panel (3) is provided with: reserved stubble-connecting reinforcing bars are used for being connected with the pressing beams (7).
8. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 1, characterized in that the prefabricated reinforced concrete panel (3) is reserved with a water drain hole (31).
9. Roadbed assembled anchor rod sheet pile composite structure retaining wall according to claim 1, characterized in that the inner side of the precast reinforced concrete panels (3) is filled with a gravel counter-filter layer (8).
10. The retaining wall of the roadbed assembled anchor rod sheet pile composite structure according to claim 2, wherein the outer surface of the pull rod (5) is coated with antirust paint or galvanized twice and is wrapped with two layers of asphalt glass cloth or asphalt hemp batting.
CN202322268011.5U 2023-08-23 2023-08-23 Roadbed assembled anchor rod sheet pile composite structure retaining wall Active CN220486524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322268011.5U CN220486524U (en) 2023-08-23 2023-08-23 Roadbed assembled anchor rod sheet pile composite structure retaining wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322268011.5U CN220486524U (en) 2023-08-23 2023-08-23 Roadbed assembled anchor rod sheet pile composite structure retaining wall

Publications (1)

Publication Number Publication Date
CN220486524U true CN220486524U (en) 2024-02-13

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ID=89837755

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322268011.5U Active CN220486524U (en) 2023-08-23 2023-08-23 Roadbed assembled anchor rod sheet pile composite structure retaining wall

Country Status (1)

Country Link
CN (1) CN220486524U (en)

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