CN216892220U - Subway opens interval flood control barricade and increases structure in section - Google Patents
Subway opens interval flood control barricade and increases structure in section Download PDFInfo
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- CN216892220U CN216892220U CN202122873441.0U CN202122873441U CN216892220U CN 216892220 U CN216892220 U CN 216892220U CN 202122873441 U CN202122873441 U CN 202122873441U CN 216892220 U CN216892220 U CN 216892220U
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Abstract
The utility model relates to a flood control retaining wall heightening structure between subway open sections, wherein a newly-built retaining wall structure is arranged on the outer side of an existing retaining wall structure of an open section, the newly-built retaining wall structure comprises a retaining wall base and a prefabricated concrete baffle, the height of the retaining wall base is flush with that of the existing retaining wall structure of the open section, and the prefabricated concrete baffle is arranged above the retaining wall base; the existing retaining wall structure of the open section and the newly-built retaining wall structure are arranged at intervals with a certain distance, and an overhaul channel which is also used as a drainage channel is formed between the existing retaining wall structure and the newly-built retaining wall structure. The utility model has the advantages that: the requirement that the operation of a train is not influenced in the construction process is met, newly-added construction land is reduced as much as possible, the investment is more economically saved compared with the traditional scheme of adding the thick retaining wall for increasing height, the retaining wall structure is lighter and attractive in overall appearance, and the design of adding the flood-control retaining wall in the later city development has a great reference value.
Description
Technical Field
The utility model relates to the technical field of flood control structures, in particular to a flood control retaining wall heightening structure between open sections of subway.
Background
Along with the development of cities, urban roads are more and more, the ground hardening area is general, and the soil capable of absorbing and promoting subsurface runoff is less and less, so that the capacity of the cities for dealing with heavy rainfall is insufficient, the retaining wall structure designed by the original flood control standard can not meet the requirement of heavy rainfall, and the situations of flooding stations, open section intervals and the like frequently occur during heavy rainstorm, so that great safety risks are caused to the safety of subway operation and people.
Disclosure of Invention
The utility model aims to provide a flood control retaining wall heightening structure between subway open sections according to the defects of the prior art, wherein a newly-built retaining wall structure consisting of a retaining wall base and a precast concrete baffle plate is additionally arranged on the outer side of the existing retaining wall structure of a subway open section so as to meet the objective requirement of improving the height of the flood control retaining wall; simultaneously, through add the access passage who is simultaneously drainage channel between the existing retaining wall structure of open section and newly-built retaining wall structure, when guaranteeing the drainage effect, realize directional drainage.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides an open section interval flood control barricade and increase structure between subway, includes the existing barricade structure in the open section, open the existing barricade structure in section and set up in the subway operation line outside, its characterized in that: a newly-built retaining wall structure is arranged on the outer side of the existing retaining wall structure of the opening section, the newly-built retaining wall structure comprises a retaining wall base and a precast concrete baffle, the height of the retaining wall base is flush with that of the existing retaining wall structure of the opening section, and the precast concrete baffle is arranged above the retaining wall base; the existing retaining wall structure of the open section and the newly-built retaining wall structure are arranged at intervals with a certain distance, and an overhaul channel which is also used as a drainage channel is formed between the existing retaining wall structure and the newly-built retaining wall structure.
The top of barricade base is preset with the recess, precast concrete baffle installs in the recess.
The thickness of the precast concrete baffle is smaller than the width of the groove, and a gap between the precast concrete baffle and the groove is fixed and limited by filling fine aggregate concrete.
And a U-shaped steel plate is arranged between the groove and the precast concrete baffle.
And a plurality of precast concrete baffles are arranged on the retaining wall base along the line direction of the subway running line, and the joint positions between the precast concrete baffles are closed through epoxy mortar.
And the butt joint surfaces of the two sides of the precast concrete baffle are respectively provided with concave and convex tongues and grooves which are matched with each other or are both provided with concave tongues and grooves.
The retaining wall base is connected with the existing retaining wall structure of the open section into an integral structure through embedded bars.
The existing retaining wall structure of the open section and the space bottom between the newly-built retaining wall structures are provided with a concrete backfill layer with a certain height.
The utility model has the advantages that: the requirement that the operation of a train is not influenced in the construction process is met, the newly-added construction land is reduced as much as possible, the investment is more economically saved compared with the traditional scheme of adding a thick retaining wall for increasing, the retaining wall structure is lighter and more attractive in overall appearance, and the design of adding the flood-control retaining wall in the later-period city development has a great reference value; simple and reasonable structure, convenient construction and suitability for popularization.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a precast concrete baffle according to the present invention;
FIG. 3 is a sectional view taken along line I-I of FIG. 2;
FIG. 4 is a waterproof structure diagram of the interface position of the precast concrete baffle according to the present invention;
fig. 5 is a structural sectional view of a precast concrete baffle plate according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, the labels 1-11, a and B are respectively shown as: the open section comprises a retaining wall structure 1, a retaining wall base 2, a precast concrete baffle 3, a U-shaped steel plate 4, fine aggregate concrete 5, a planting bar 6, a concave tongue-and-groove 7, a convex tongue-and-groove 8, epoxy mortar 9, an overhaul channel 10, a concrete backfill layer 11, an operation area A and an operation area B.
Example (b): as shown in fig. 1, the flood control retaining wall heightening structure in the subway open section area in this embodiment is used for dealing with the situation that the existing retaining wall structure 1 in the open section cannot meet the higher flood control requirement due to insufficient height. The existing retaining wall structure 1 of the open section is arranged on the outer side of the subway operation line, as shown in fig. 1, the inner side of the existing retaining wall structure 1 of the open section is an operation area A, and the outer side is an operation area B.
The section interval flood control barricade increases the main structure body is uncovered to subway in this embodiment is including setting up the new-built barricade structure in the existing barricade structure 1 outside of opening section, and this new-built barricade structure is located the outer B of operation district promptly.
This newly-built barricade structure comprises barricade base 2 and precast concrete baffle 3, and wherein barricade base 2 is L type structure, and its bottom is fixed and even becomes overall structure through planting muscle 6 and open between the existing barricade structure 1 of section to guarantee newly-built barricade structure's stability. Meanwhile, a certain space is formed between the retaining wall base 2 and the existing retaining wall structure 1 of the open section at intervals through the L-shaped structure of the retaining wall base, and the space can be used as an overhaul channel 10 for later maintenance and overhaul of technicians. The whole height of the retaining wall base 2 is flush with the height of the existing retaining wall structure 1 of the open section.
A groove extending in the subway line direction is formed at the top of the retaining wall base 2, and the precast concrete baffle 3 is installed in the groove. Specifically, the thickness of the precast concrete baffle 3 is smaller than the width of the groove; after the precast concrete baffle 3 is installed, the gap between the precast concrete baffle 3 and the groove is filled with fine stone concrete 5 of which the grade is one level higher than that of the concrete used by the retaining wall base 2, so that the precast concrete baffle 3 is fixedly installed on the retaining wall base 2. During actual installation, the fine aggregate concrete 5 is poured into one part of the bottom to play a certain positioning role for the precast concrete baffle 3, the position of the precast concrete baffle 3 can be corrected, and the precast concrete baffle 3 is poured and compacted to complete installation.
Further, as shown in fig. 1, in the present embodiment, precast concrete apron 3 is disposed at a position relatively outside in the groove, and filled fine stone concrete 5 is disposed at a position relatively inside the groove; thus, can rely on fine aggregate concrete 5 to provide stronger resistance to precast concrete baffle 3 when flood control stagnant water, guarantee that precast concrete baffle 3 can not take place to topple because of water pressure, improve flood control stagnant water effect.
In the embodiment, a U-shaped steel plate 4 is arranged between the groove and the precast concrete baffle 3 in the groove, and the U-shaped steel plate 4 is attached to the inner wall of the groove body of the groove; the structural rigidity of the groove position can be effectively guaranteed by arranging the U-shaped steel plate 4, so that the flood control and water retaining effects are guaranteed.
As shown in fig. 2 to 4, the precast concrete baffle 3 in this embodiment adopts a multi-block splicing structure along the subway line direction, so as to avoid inconvenience in construction due to an excessively large and heavy single precast concrete baffle 3. The two sides of the butt joint surface of the prefabricated concrete baffle 3 are respectively provided with a concave rabbet 7, and after the adjacent prefabricated concrete baffles 3 are installed in place, the joint filling treatment is carried out in the concave rabbet 7 butted with the adjacent prefabricated concrete baffles by adopting epoxy mortar 9, so that the prefabricated concrete baffles 3 are sealed, and the flood control and water retaining effects are further ensured while the structural strength is improved.
As shown in fig. 5, instead of providing the concave grooves and tongues 7 on the abutting surfaces of the two sides of the precast concrete baffle 3, a concave groove and tongue 7 on one abutting surface and a convex groove and tongue 8 matched with the concave groove and tongue 7 on the other abutting surface may be provided. Therefore, the adjacent precast concrete baffles 3 can be spliced by concave-convex grooves and tongues, and the strength of each precast concrete baffle 3 is further improved.
As shown in fig. 1, the lower part of the maintenance channel 10, which needs to be reserved between the retaining wall base 2 of the newly-built retaining wall structure and the existing retaining wall structure 1 of the open section, is backfilled with C30 concrete at a height of 500mm to serve as a concrete backfill layer 11, so that the maintenance channel can be used as a drainage channel, accumulated water is discharged directionally, and drainage holes are not required to be formed in the bottom of the conventional retaining wall.
In the embodiment, in specific implementation: the surface of the concrete backfill layer 11 can be provided with a certain gradient to improve the drainage efficiency and the drainage effect. Meanwhile, under some extreme weather conditions, accumulated water in the existing retaining wall structure 1 of the open section can be led out of the wall from the inside of the wall to a drainage channel outside the wall and drained through the drainage channel, so that the drainage problem in the existing retaining wall structure 1 of the open section is effectively solved. Similarly, the accumulated water on the outer side of the newly-built retaining wall structure can also be introduced into the drainage channel for drainage. The two ends of the drainage channel can be connected into the urban drainage system through pipelines or other modes.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.
Claims (8)
1. The utility model provides an interval flood control barricade of open section increases structure is uncovered to subway, includes the existing barricade structure of open section, the existing barricade structure of open section sets up in the subway operation line outside, its characterized in that: a newly-built retaining wall structure is arranged on the outer side of the existing retaining wall structure of the opening section, the newly-built retaining wall structure comprises a retaining wall base and a precast concrete baffle, the height of the retaining wall base is flush with that of the existing retaining wall structure of the opening section, and the precast concrete baffle is arranged above the retaining wall base; the existing retaining wall structure of the open section and the newly-built retaining wall structure are arranged at intervals with a certain distance, and an overhaul channel which is also used as a drainage channel is formed between the existing retaining wall structure and the newly-built retaining wall structure.
2. The open-section flood control retaining wall heightening structure for subway according to claim 1, wherein: the top of barricade base is preset with the recess, precast concrete baffle installs in the recess.
3. The open-section flood control retaining wall heightening structure for subway according to claim 2, wherein: the thickness of the precast concrete baffle is smaller than the width of the groove, and a gap between the precast concrete baffle and the groove is fixed and limited by filling fine aggregate concrete.
4. The open-section space flood control retaining wall heightening structure for subway according to claim 2 or 3, wherein: and a U-shaped steel plate is arranged between the groove and the precast concrete baffle.
5. The open-section flood control retaining wall heightening structure for subway according to claim 1, wherein: follow subway operation line's line direction arrange the polylith on the barricade base precast concrete baffle, it is adjacent seam position between the precast concrete baffle is airtight through epoxy mortar.
6. The open-section space flood control retaining wall heightening structure for subway according to claim 5, wherein: and the butt joint surfaces of the two sides of the precast concrete baffle are respectively provided with concave and convex tongues and grooves which are matched with each other or are both provided with concave tongues and grooves.
7. The open-section flood control retaining wall heightening structure for subway according to claim 1, wherein: the retaining wall base is connected with the existing retaining wall structure of the open section into an integral structure through embedded bars.
8. The open-section flood control retaining wall heightening structure for subway according to claim 1, wherein: the existing retaining wall structure of the open section and the space bottom between the newly-built retaining wall structures are provided with a concrete backfill layer with a certain height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122873441.0U CN216892220U (en) | 2021-11-23 | 2021-11-23 | Subway opens interval flood control barricade and increases structure in section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122873441.0U CN216892220U (en) | 2021-11-23 | 2021-11-23 | Subway opens interval flood control barricade and increases structure in section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216892220U true CN216892220U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122873441.0U Active CN216892220U (en) | 2021-11-23 | 2021-11-23 | Subway opens interval flood control barricade and increases structure in section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216892220U (en) |
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2021
- 2021-11-23 CN CN202122873441.0U patent/CN216892220U/en active Active
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