CN212534209U - In-process track top air duct structure of subway open cut station - Google Patents
In-process track top air duct structure of subway open cut station Download PDFInfo
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- CN212534209U CN212534209U CN202020715431.7U CN202020715431U CN212534209U CN 212534209 U CN212534209 U CN 212534209U CN 202020715431 U CN202020715431 U CN 202020715431U CN 212534209 U CN212534209 U CN 212534209U
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Abstract
The utility model provides a subway open cut station in same direction as making rail top wind channel structure, subway station's major structure include the bottom plate, pour and form in side wall on the bottom plate with form in the well floor of the inboard of side wall, in same direction as making rail top wind channel structure and include: the air channel substrate is arranged between the middle floor and the bottom plate along the length direction of the intersection of the middle floor and the side wall, the air channel substrate is provided with a first side far away from the side wall and a second side close to the side wall, and the second side of the air channel substrate is connected to the side wall; and the air channel side plate is connected to the first side of the air channel base plate and the bottom of the middle floor plate, and the air channel base plate, the air channel side plate, the side wall and the middle floor plate are enclosed to form a rail top air channel of the subway station. The utility model provides a subway rail top wind channel structure adopt traditional back way construction to have the effect space little, and the efficiency of construction is low, pours the poor problem of difficulty closely knit nature.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to subway open cut station's in same direction as doing track top wind channel structure.
Background
At present, rail transit such as subway has become one of the main development directions of the modern city construction of our country. In subway construction, a rail top air duct is an indispensable part of a subway station. When the subway station is a three-layer island transfer station, the rail top air duct structure is often arranged below a floor in the underground second layer, and the main function of the rail top air duct structure is to exhaust and ventilate and reduce the temperature in the station.
In the actual work progress, the track top wind channel structure of subway open cut station generally adopts the back construction method to carry out the construction, and track top wind channel structure is not under construction simultaneously with station major structure promptly. And after the construction of the main structure of the subway station is finished, constructing a rail top air duct structure. However, since the small wall plate of the rail top air duct structure is thin, and a large number of required reserved holes and embedded pipes are needed, the construction space is narrow, the interior is short, and some common construction difficulties which are difficult to control can be encountered in the construction process, such as narrow operation space and difficult construction operation; the construction operation efficiency is low; the concrete pouring of the subsequent construction is difficult, and the concrete pouring compactness is poor; the plate body of the rail top air channel structure is difficult to be connected with the reinforcing steel bars of the station side wall structure; the number of reserved holes and embedded parts on the rail top air channel structure is large, the accuracy is difficult to control, and a large amount of manpower and material resources are required to be consumed. If the operation is improper in the construction key point construction process, slight appearance quality defects can be caused, the quality, normal use function and service life of a concrete structure can be seriously and directly influenced, and construction quality accidents are caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the invention provides a sequential-operation rail top air duct structure of a subway open cut station, which aims to solve the problems of small action space, low construction efficiency and poor pouring difficulty and compactness of the conventional back-method construction of the subway rail top air duct structure.
In order to realize the above-mentioned purpose, the utility model provides a subway open cut station's in same direction as doing track top wind channel structure, subway station's major structure include the bottom plate, pour and form in side wall on the bottom plate with form in the well floor of the inboard of side wall, track top wind channel structure includes:
the air channel substrate is arranged between the middle floor and the bottom plate along the length direction of the intersection of the middle floor and the side wall, the air channel substrate is provided with a first side far away from the side wall and a second side close to the side wall, and the second side of the air channel substrate is connected to the side wall; and
the air channel side plate is connected to the first side of the air channel base plate and the bottom of the middle floor plate, and the air channel base plate, the air channel side plate, the side wall and the middle floor plate enclose the rail top air channel forming the subway station.
Furthermore, the first side of the air duct base plate is connected to the middle of the air duct side plate.
Furthermore, the first ends of the steel bars of the air duct substrate are anchored in the side walls and connected to the steel bars of the side walls, and the second ends of the steel bars of the air duct substrate are anchored in the air duct side plates and connected to the steel bars of the air duct side plates.
Furthermore, the upper ends of the steel bars of the air duct side plates are anchored in the middle floor slab and connected with the steel bars of the middle floor slab.
The beneficial effects of the utility model reside in that, the smooth-operation rail top air channel structure of the subway open cut station of the utility model utilizes the side wall and the middle floor slab as the permanent structure of one side of the rail top air channel structure, so that the smooth-operation rail top air channel structure of the subway open cut station of the utility model can be constructed by utilizing the smooth-operation method, thereby laying a foundation for the implementation of the smooth-operation method, further providing enough operation space for constructors during the construction of the rail top air channel structure, being convenient for the constructors to construct and operate, and obviously improving the operation efficiency; the concrete of the rail top air channel structure can be conveyed and poured by the upper pump, so that the concrete is fully and compactly poured, the appearance quality defect of the concrete is improved, the concrete pouring speed is favorably improved, the phenomenon that a pump pipe is blocked when the concrete is conveyed by the vehicle-mounted ground pump is avoided, and the construction quality is greatly improved.
The structure of the sequential rail top air channel of the subway open cut station is convenient for construction quality control, thereby achieving the purposes of refined quality management, normalized work and standardized construction; the utility model discloses a subway open cut station's in same direction as doing roof wind channel structure has optimized the construction procedure, compares with the construction of adopting back-construction method roof wind channel, has reduced many subsequent construction links, avoids the secondary condition of advancing to take place, has effectively practiced thrift the expenditure of construction total erection time and cost of labor, has fully embodied economic nature and practicality.
The utility model discloses a subway open cut station's side wall and the well floor of making rail top wind channel structure and station underground structure pour together, have improved the firm and firm nature in rail top wind channel.
Drawings
Fig. 1 is the utility model discloses subway open cut station's in same direction as structure schematic diagram of doing track top wind channel structure.
Fig. 2 is the utility model discloses a subway open cut station's in same direction as partial enlarged view of doing track top wind channel structure.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Fig. 1 is the utility model discloses subway open cut station's in the same direction as making rail top wind channel structure's structural schematic diagram (cross-sectional view), fig. 2 are the utility model discloses a subway open cut station's in the same direction as making rail top wind channel structure's local enlarged view.
Referring to fig. 1 and 2, the underground main structure of the subway station includes a bottom plate 1, side walls, and a middle floor 5. The side walls comprise an underground three-layer side wall 2, an underground two-layer side wall 6 and an underground one-layer side wall which are poured in a layered mode. The three-layer side wall 2 is poured on the outer edge of the bottom plate 1. The underground three-layer side wall 2 is provided with a circle along the outer edge of the bottom plate. The middle floor 5 is formed on the inner side of the underground three-layer side wall 2. In the present embodiment, the middle floor of the underground main structure has three layers, and the track air duct is disposed below the middle floor 5 of the lowest layer (underground three layers), i.e., above the bottom plate.
Continuing to refer to fig. 1 and fig. 2, the utility model provides a subway open cut station's in same direction as doing track top wind channel structure, include: a duct base plate 3 and a duct side plate 4.
Specifically, the air duct base plate 3 is arranged between the middle floor 5 and the bottom plate 1 along the length direction of the intersection of the middle floor 5 and the underground three-layer side walls 2. In the underground three layers, the air duct base plate is arranged below the intersection of the middle floor plate and the side wall, and the air duct base plate is arranged in parallel with the middle floor plate and the bottom plate. The air duct substrate 3 is provided with a first side far away from the underground three-layer side wall 2 and a second side close to the underground three-layer side wall 2. The second side of the air channel substrate 3 is connected to the underground three-layer side wall 2.
The air duct side plate 4 is vertically arranged, and the air duct side plate 4 is connected to the first side of the air duct base plate 3 and the bottom of the middle floor plate 5. The air channel base plate 3, the air channel side plate 4, the underground three-layer side wall 2 and the middle floor 5 enclose a rail top air channel A of the subway station.
The utility model discloses a subway open cut station's in-line operation rail top wind channel structure utilizes side wall and well floor as the permanent structure of one side of rail top wind channel structure, makes the utility model discloses a subway open cut station's in-line operation rail top wind channel structure can utilize the construction of in-line construction method to construct, lays a foundation for the implementation of in-line construction method, and then for when the construction of rail top wind channel structure, constructor has sufficient operation space, the constructor construction operation of being convenient for, is showing and is improving operating efficiency; the concrete of the rail top air channel structure can be conveyed and poured by the upper pump, so that the concrete is fully and compactly poured, the appearance quality defect of the concrete is improved, the concrete pouring speed is favorably improved, the phenomenon that a pump pipe is blocked when the concrete is conveyed by the vehicle-mounted ground pump is avoided, and the construction quality is greatly improved.
The structure of the sequential rail top air channel of the subway open cut station is convenient for construction quality control, thereby achieving the purposes of refined quality management, normalized work and standardized construction; the utility model discloses a subway open cut station's in same direction as doing roof wind channel structure has optimized the construction procedure, compares with the construction of adopting back-construction method roof wind channel, has reduced many subsequent construction links, avoids the secondary condition of advancing to take place, has effectively practiced thrift the expenditure of construction total erection time and cost of labor, has fully embodied economic nature and practicality.
The utility model discloses a subway open cut station's side wall and the well floor of making rail top wind channel structure and station underground structure pour together, have improved the firm and firm nature in rail top wind channel.
In a preferred embodiment, the first side of the duct base plate 3 is connected to the middle of the duct side plate 4.
In this embodiment, the height of the side plate of the air duct is 2.25m, and the thickness is 0.375 m. The air duct base plate is connected to the lower third of the air duct side plate. The thickness of the air duct substrate is 0.3m, and the length of the air duct substrate is 5.4 m.
The first ends of the reinforcing steel bars 31 of the air duct base plate 3 are anchored in the underground three-layer side wall 2 and connected to the reinforcing steel bars of the underground three-layer side wall 2, and the second ends of the reinforcing steel bars 31 of the air duct base plate 3 are anchored in the air duct side plate 4 and connected to the reinforcing steel bars 41 of the air duct side plate 4.
The upper ends of the reinforcing bars 41 of the duct side plate 4 are anchored in the middle floor 5 and connected to the reinforcing bars of the middle floor 5.
When the reinforcement binding construction of the underground three-layer side wall is carried out, the connection mode of the reinforcement 31 of the air duct substrate is considered, and the reinforcement is reserved to be connected with the reinforcement of the air duct substrate.
During the steel bar binding construction of the air duct side plate, the reservation of the throwing bars is reserved for the steel bar reservation of the air duct side plate directly connected with the air duct side plate 4 by the middle floor 51 during binding.
The utility model provides a subway open cut station's construction method in same direction as doing rail top wind channel structure, including following step:
s1: and pouring to form an underground three-layer side wall 2 on the bottom plate 1 of the subway station.
In the actual construction process, after the bottom plate 1 of the underground main structure of the subway station is constructed, the construction of the underground three-layer side wall 2 is carried out. Before the construction of the underground three-layer side wall 2, a measurer performs construction lofting to determine the construction height of the underground three-layer side wall 2, so that the steel bar blanking of the underground three-layer side wall 2 is facilitated, and the steel bar binding construction of the underground three-layer side wall 2 is performed.
And (3) after the binding and acceptance of the steel bars of the underground three-layer side wall 2 are finished, carrying out template installation and reinforcement construction on the underground three-layer side wall d, carrying out concrete pouring on the underground three-layer side wall after acceptance of qualified conditions, determining the actual site concrete pouring elevation of the underground three-layer side wall before concrete pouring, finishing concrete pouring, and timely roughening and cleaning the construction joint of the underground three-layer side wall according to the standard requirements. And sequentially pouring an underground two-layer side wall 6 and an underground one-layer side wall on the three underground side walls. And after the concrete of the underground layer side wall reaches the form removal strength, removing the form of the underground layer side wall.
S2: and pouring along the length direction of the underground three-layer side wall 2 at the inner side of the underground three-layer side wall 2 to form an air duct base plate 3, connecting a second side, close to the underground three-layer side wall 2, of the air duct base plate 3 to the inner side of the underground three-layer side wall 2, and pouring upwards at a first side, far away from the underground three-layer side wall 2, of the air duct base plate 3 to form an air duct side plate 4.
Wherein, pour the step that forms wind channel base plate 3 in the length direction of three layer of underground side wall 2 along the three layer of underground side wall 2 in the inboard of three layer of underground side wall 2 and include:
a template of an air duct base plate and a template of an air duct side plate are erected on the bottom plate 1 through a first frame body.
And binding the steel bars 31 of the air duct base plate 3 on the template of the air duct base plate, and anchoring the first ends of the steel bars 31 of the air duct base plate 3 in the underground three-layer side walls 2 and connecting the first ends to the steel bars of the underground three-layer side walls 2.
And binding the steel bars 41 of the air duct side plate 4 in the template of the air duct side plate, and connecting the steel bars at the bottom end of the air duct side plate 4 to the second end of the steel bars 31 of the air duct base plate 3, so that the steel bars at the top end of the air duct side plate 4 extend into the pouring space of the middle floor 5.
And concrete is poured into the template of the air duct base plate and the template of the air duct side plate, so that the concrete coats the reinforcing steel bars of the air duct base plate 3 and the air duct side plate 4.
Specifically, in this embodiment, set up first support body on the underground major structure bottom plate and near underground three-layer side wall within range earlier. The first frame body is a full framing scaffold. The first frame body is provided with a circle along the length direction of the intersection of the middle floor 5 and the underground three-layer side walls. And laying a template of the air duct base plate and the air duct side plate on the first frame body. After the air duct base plate template is laid, a measurer performs air duct base plate steel bar positioning paying-off and hole reserving and embedded part position positioning paying-off on the rail top air duct, air duct base plate and air duct side plate steel bar binding construction, and during binding, the reservation of the reserved throwing ribs of the air duct side plate steel bars directly connected with the middle floor slab and the reservation of the throwing ribs of the air duct base plate and the steel bars directly connected with the underground three-layer side wall are noticed. And then accurately installing the rail top air duct embedded part. After the reinforcing steel bars of the rail top air channel structure are finished, quality acceptance is carried out, after acceptance is qualified, end construction joint position formwork plugging construction of the rail top air channel structure is carried out, after acceptance is qualified, concrete pouring construction of the air channel base plate and the air channel side plate is carried out in an air pump pumping mode, layered pouring is carried out during pouring, vibration is dense, and timely covering and water sprinkling maintenance are carried out after pouring is finished.
S3: pouring a middle floor 5 for forming the subway station on the three underground side walls 2 above the air duct substrate 3, and connecting the air duct side plates 4 to the bottom of the middle floor 5, so that the air duct substrate 3, the air duct side plates 4, the three underground side walls 2 and the middle floor 5 enclose a rail top air duct A for forming the subway station.
Wherein, pour the step of forming the well floor 5 of subway station on the three-layer underground side wall 2 of the top of wind channel base plate 3, include:
a second frame is erected on the base plate 1 and a third frame is erected on the air duct base plate 3.
And laying a middle floor 5 template on the second frame body and the third frame body.
And binding the reinforcing steel bars of the middle floor 5 on the template of the middle floor 5, and connecting the reinforcing steel bars at the top end of the air duct side plate 4 to the reinforcing steel bars of the middle floor 5.
And pouring concrete on the middle floor 5 template, so that the concrete covers the middle floor 5 template.
Specifically, after the concrete of the air duct base plate reaches a certain designed concrete strength, a second frame body is erected on the bottom plate, and a third frame body is erected on the air duct base plate.
Because the upper portion space of wind channel base plate is narrow and small, low, the formula scaffold is detained to the dish is adopted to the third support body, and the material adopts the horizontal pole that length is 900mm and length to be 600mm horizontal pole, and diameter 350 mm's base, diameter 600mm dish are detained the jacking and are firmly connected for full hall support body.
After the second support body and the third support body are erected, the elevation of the second support body and the elevation of the third support body are adjusted, the template laying of the middle floor slab is carried out, and the steel bar binding construction of the middle floor slab is carried out. And after the steel bars are qualified, performing the construction of plugging the template at the end construction joint position of the middle floor slab. After the templates of the middle floor slab are qualified, the concrete pouring construction of the middle floor slab is carried out by adopting an air pump pumping mode, and layered pouring and vibration compaction are required during pouring; and covering in time after pouring is finished, and watering and maintaining. And after the concrete strength of the middle floor slab meets the requirement, dismantling construction of a third frame body in the rail top air channel can be carried out. And subsequently, the construction of the underground second-layer side wall 6, the middle floor, the underground first-layer side wall and the main structure top plate is sequentially carried out.
The sequential construction method of the sequential rail top air duct structure of the open cut subway station optimizes the construction scheme of the rail air duct, greatly saves the cost and accelerates the construction progress more effectively.
The utility model discloses a subway open cut station's in same direction as doing construction method of doing rail top wind channel structure has that the construction operation is convenient, effectively improves construction work efficiency, the concrete placement of being convenient for, improves full closely knit degree of concrete placement and concrete appearance quality greatly, characteristics such as labour saving and time saving and economical and practical. The problems and difficulties encountered in the construction process of the rail top air duct are effectively solved, and the construction quality level and the working efficiency are obviously improved.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the present invention, which are intended to be limited only by the scope of the appended claims.
Claims (4)
1. The utility model provides a subway open cut station's in same direction as making rail top wind channel structure, subway station's major structure include the bottom plate, pour and form in side wall on the bottom plate with be formed at the well floor of the inboard of side wall, its characterized in that, rail top wind channel structure includes:
the air channel substrate is arranged between the middle floor and the bottom plate along the length direction of the intersection of the middle floor and the side wall, the air channel substrate is provided with a first side far away from the side wall and a second side close to the side wall, and the second side of the air channel substrate is connected to the side wall; and
the air channel side plate is connected to the first side of the air channel base plate and the bottom of the middle floor plate, and the air channel base plate, the air channel side plate, the side wall and the middle floor plate enclose the rail top air channel forming the subway station.
2. The sequential rail top air duct structure of the subway open cut station as claimed in claim 1, wherein the first side of said air duct base plate is connected to the middle of said air duct side plate.
3. The sequential rail top air duct structure of the subway open cut station as claimed in claim 1, wherein a first end of the steel bar of the air duct substrate is anchored in the side wall and connected to the steel bar of the side wall, and a second end of the steel bar of the air duct substrate is anchored in the air duct side plate and connected to the steel bar of the air duct side plate.
4. The sequential rail top air duct structure of the subway open cut station as claimed in claim 3, wherein upper ends of the reinforcing bars of said air duct side plates are anchored in and connected to the reinforcing bars of said middle floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020715431.7U CN212534209U (en) | 2020-04-30 | 2020-04-30 | In-process track top air duct structure of subway open cut station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020715431.7U CN212534209U (en) | 2020-04-30 | 2020-04-30 | In-process track top air duct structure of subway open cut station |
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| CN212534209U true CN212534209U (en) | 2021-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501830A (en) * | 2020-04-30 | 2020-08-07 | 中建八局轨道交通建设有限公司 | Subway open cut station rail top air duct structure and sequential construction method thereof |
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2020
- 2020-04-30 CN CN202020715431.7U patent/CN212534209U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501830A (en) * | 2020-04-30 | 2020-08-07 | 中建八局轨道交通建设有限公司 | Subway open cut station rail top air duct structure and sequential construction method thereof |
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