CN215252004U - Prefabricated ditch for ballastless track of rail transit upper cover parking lot - Google Patents

Prefabricated ditch for ballastless track of rail transit upper cover parking lot Download PDF

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Publication number
CN215252004U
CN215252004U CN202120817908.7U CN202120817908U CN215252004U CN 215252004 U CN215252004 U CN 215252004U CN 202120817908 U CN202120817908 U CN 202120817908U CN 215252004 U CN215252004 U CN 215252004U
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China
Prior art keywords
ditch
prefabricated
prefabricated ditch
splicing
ballastless track
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CN202120817908.7U
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Chinese (zh)
Inventor
宫寅
张东峰
白楷
王鸿飞
李凤煜
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China Railway Shanghai Design Institute Group Co Ltd
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China Railway Shanghai Design Institute Group Co Ltd
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Priority to CN202120817908.7U priority Critical patent/CN215252004U/en
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Abstract

The utility model belongs to the technical field of ballastless track structure and construction technique and specifically relates to a track traffic upper cover station ballastless track is with prefabricated ditch, its characterized in that: this prefabricated ditch comprises a plurality of prefabricated ditch units, and is a plurality of constitute the concatenation through unsmooth cooperation between the prefabricated ditch unit, the both sides face of prefabricated ditch unit is provided with protruding spacing boss in its side be provided with the escape canal on the prefabricated ditch unit. The utility model has the advantages that: the method has the advantages that the prefabrication of the ditch for the ballastless track is realized, the construction quality of the ditch is improved, and particularly the line type of the ditch is improved; the prefabricated ditch is tightly connected with the ballastless track, the structure is stable, and the drainage effect is good; the installation is convenient, the construction speed is greatly improved, and meanwhile, the working time can be greatly shortened by adopting the prefabricated ditch; realize green design, be suitable for the popularization.

Description

Prefabricated ditch for ballastless track of rail transit upper cover parking lot
Technical Field
The utility model belongs to the technical field of ballastless track structure and construction technique and specifically relates to a track traffic upper cover station ballastless track is with prefabricated ditch.
Background
With the rapid development of urbanization and urban rail transit, more and more cities advocate a development mode of TOD rail combined with property, namely property development on a vehicle section or a parking lot of rail transit. The track layer of the upper cover development yard is generally located on an underground first layer, a second layer or a ground layer, when the track layer is located underground, the track layer is generally a ballastless track bed, considering that a ballast track bed is inconvenient to maintain and repair in a closed space, and the track bed of the track layer is a reinforced concrete ballastless track bed. The whole parking lot that the upper cover was developed is less than conventional ground parking lot rainwater, but the upper cover is developed and generally can reserve the courtyard daylighting, can lead to having partial rainwater, considers fire water, tunnel cleaning water simultaneously, and the station track layer still needs to set up the ditch. The traditional ditch adopts cast-in-place concrete, is slow in construction, has uneven construction quality levels after completion, considers that the prior building industry enters the times of green design and assembly type construction, has larger track range of stock track layers of a top cover development yard, and has more abundant ditch construction space, thereby designing a prefabricated ditch and effectively improving the construction speed and quality of the ditch.
Disclosure of Invention
The utility model aims at providing a track traffic upper cover station ballastless track is with prefabricated ditch according to the not enough of above-mentioned prior art, through the prefabricated ditch cell cube that has mosaic structure and limit structure, realizes the quick construction of ditch on the ballastless track, improves construction quality simultaneously.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a track traffic upper cover parking lot ballastless track is with prefabricated ditch which characterized in that: this prefabricated ditch comprises a plurality of prefabricated ditch units, and is a plurality of constitute the concatenation through unsmooth cooperation between the prefabricated ditch unit, the both sides face of prefabricated ditch unit is provided with protruding spacing boss in its side be provided with the escape canal on the prefabricated ditch unit.
The concave-convex matching means that the splicing bosses and the splicing grooves are respectively arranged on the splicing surfaces on the two sides of the prefabricated ditch unit, the splicing bosses and the splicing grooves are matched in shape and size, and the splicing bosses and the splicing grooves are spliced on the splicing surfaces of the prefabricated ditch unit.
At least two splicing bosses are arranged on the splicing surface on one side of the prefabricated ditch unit, and splicing grooves corresponding to the splicing bosses in position and quantity are arranged on the splicing surface on the other side of the prefabricated ditch unit.
The prefabricated ditch is installed on ballastless tracks, and waterproof coating layers are coated at concrete joints of the prefabricated ditch and the ballastless tracks on two sides.
And waterproof coating layers are coated on the surfaces of the splicing parts of the plurality of prefabricated ditch units.
The side surface of the prefabricated ditch unit is provided with at least two limiting bosses which are arranged at even intervals.
The drainage ditch is a semicircular drainage ditch, and both sides of the semicircular drainage ditch are provided with certain slopes.
The prefabricated ditch is a linear ditch or a curve ditch.
The utility model has the advantages that: the method has the advantages that the prefabrication of the ditch for the ballastless track is realized, the construction quality of the ditch is improved, and particularly the line type of the ditch is improved; the prefabricated ditch is tightly connected with the ballastless track, the structure is stable, and the drainage effect is good; the installation is convenient, the construction speed is greatly improved, and meanwhile, the working time can be greatly shortened by adopting the prefabricated ditch; realize green design, be suitable for the popularization.
Drawings
FIG. 1 is a schematic view of the connection structure between the present invention and the ballast bed;
FIG. 2 is a schematic structural view of a prefabricated ditch unit of the present invention;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a schematic view of the arrangement structure of the present invention;
fig. 5 is a schematic cross-sectional view of fig. 4.
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 accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, the labels 1-14 are respectively shown as: the prefabricated ditch unit 1, waterproof coating layer 2, backfill concrete 3, reinforced concrete track bed 4, waterproof coating layer 5, rail 6, fastener 7, sleeper 8, prefabricated ditch 9, concatenation boss 10, concatenation recess 11, spacing boss 12, civil engineering structure basis 13, semi-circular escape canal 14.
Example (b): as shown in fig. 1 to 5, the prefabricated ditch for the ballastless track of the track traffic in the embodiment includes a plurality of prefabricated ditch units 1, and the plurality of prefabricated ditch units 1 can be spliced with each other along the line direction to form the ditch for the ballastless track, so as to play a role in draining water. A semicircular drainage ditch 14 is arranged at the central line position of the prefabricated ditch unit 1, and the two sides of the semicircular drainage ditch 14 can be provided with 3% slopes, so that smooth water flow is met.
Referring to fig. 2 and 3, each prefabricated ditch unit 1 has the same structure, and both side surfaces of the prefabricated ditch unit 1 are provided with limiting bosses 12, and the limiting bosses 12 protrude out of the side surfaces of the prefabricated ditch unit 1; when the prefabricated ditch unit 1 is installed and constructed, the limiting bosses 12 on the two sides can be cast with cast-in-place concrete on the two sides into a whole, so that the prefabricated ditch is tightly combined with the backfilled concrete 3 or the reinforced concrete ballast bed 4, and the stability of a prefabricated structure is further ensured.
In the present embodiment, as shown in fig. 2, three limiting bosses 12 are uniformly arranged at intervals on the side surface of the prefabricated ditch unit 1 along the line direction to ensure the connectivity between the whole prefabricated unit 1 and the cast-in-place concrete.
As shown in fig. 3 and 4, the splicing surfaces on both sides of the prefabricated ditch unit 1 are respectively provided with a splicing boss 10 and a splicing groove 11, wherein the shape and size of the outer contour of the splicing boss 10 are matched with the shape and size of the notch of the splicing groove 11, so that the requirement that the splicing boss 10 can be inserted into the connecting groove 11 is met. Therefore, the splicing between two adjacent prefabricated ditch units 1 can be realized through the concave-convex matching between the splicing bosses 10 and the splicing grooves 11 which are respectively arranged on the splicing surfaces of the two adjacent prefabricated ditch units 1, and then the prefabricated ditch 9 which is in accordance with the drainage design and has a certain length along the line direction is formed by splicing the plurality of prefabricated ditch units 1.
In this embodiment, as shown in fig. 3, two symmetrically arranged splicing bosses 10 are provided on a splicing surface on one side of the prefabricated ditch unit 1, and two splicing grooves 11 corresponding to the splicing surface on the other side are provided; through the concatenation between two concatenation bosss 10 and two concatenation recesses 11, improve the connectivity between the prefabricated ditch unit 1, guarantee the structural strength and the wholeness of prefabricated ditch.
As shown in figure 4, waterproof paint layers 2 are coated on the surfaces of joints between two sides of the prefabricated ditch unit 1 and the backfilling concrete 3 and the reinforced concrete roadbed 4 so as to prevent water from seeping downwards. Similarly, the joint of two adjacent prefabricated ditch units 1 is also coated with a waterproof coating layer 5.
As shown in fig. 5, when the prefabricated ditch for the ballastless track of the track traffic in the embodiment is constructed, the construction method includes the following steps:
1) and erecting steel rails 6, fasteners 7, sleepers 8 and bound roadbed reinforcing steel bars on the finished civil structure foundation 13.
2) The plane position of the prefabricated water ditch 9 is determined by the track central line according to the erected steel rail 6.
3) And splicing the plurality of prefabricated ditch units 1 into the prefabricated ditch 9 along the line direction.
4) And pouring the reinforced concrete track bed 4 on the inner side of the prefabricated ditch 9 to enable the prefabricated ditch 9 and the reinforced concrete track bed 4 to be connected into a whole.
5) And pouring the backfill concrete 3 outside the prefabricated ditch 9, thereby realizing the fixation of the prefabricated ditch 9.
6) And respectively painting a waterproof coating layer 5 and a waterproof coating layer 2 at the splicing part of each prefabricated ditch unit 1, the splicing parts of two sides of the prefabricated ditch 9 and cast-in-place concrete, and finishing construction.
In the embodiment, in specific implementation: the prefabricated ditch 9 can be made of fiber concrete, steel fiber or high polymer material fiber, and the concrete can be made of materials such as wear-resistant concrete and the like, so that the durability requirement is met.
The prefabricated gully 9 is generally straight, and a curved gully with a curve radius R =150m can be arranged according to the line condition. In general, the prefabricated water trench 9 can be prefabricated in a factory according to actual design needs.
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, the description thereof is not repeated herein.

Claims (8)

1. The utility model provides a track traffic upper cover parking lot ballastless track is with prefabricated ditch which characterized in that: this prefabricated ditch comprises a plurality of prefabricated ditch units, and is a plurality of constitute the concatenation through unsmooth cooperation between the prefabricated ditch unit, the both sides face of prefabricated ditch unit is provided with protruding spacing boss in its side be provided with the escape canal on the prefabricated ditch unit.
2. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: the concave-convex matching means that the splicing bosses and the splicing grooves are respectively arranged on the splicing surfaces on the two sides of the prefabricated ditch unit, the splicing bosses and the splicing grooves are matched in shape and size, and the splicing bosses and the splicing grooves are spliced on the splicing surfaces of the prefabricated ditch unit.
3. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 2, characterized in that: at least two splicing bosses are arranged on the splicing surface on one side of the prefabricated ditch unit, and splicing grooves corresponding to the splicing bosses in position and quantity are arranged on the splicing surface on the other side of the prefabricated ditch unit.
4. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: the prefabricated ditch is installed on ballastless tracks, and waterproof coating layers are coated at concrete joints of the prefabricated ditch and the ballastless tracks on two sides.
5. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: and waterproof coating layers are coated on the surfaces of the splicing parts of the plurality of prefabricated ditch units.
6. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: the side surface of the prefabricated ditch unit is provided with at least two limiting bosses which are arranged at even intervals.
7. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: the drainage ditch is a semicircular drainage ditch, and both sides of the semicircular drainage ditch are provided with certain slopes.
8. The prefabricated ditch for the ballastless track of the rail transit upper cover yard according to claim 1, characterized in that: the prefabricated ditch is a linear ditch or a curve ditch.
CN202120817908.7U 2021-04-21 2021-04-21 Prefabricated ditch for ballastless track of rail transit upper cover parking lot Active CN215252004U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120817908.7U CN215252004U (en) 2021-04-21 2021-04-21 Prefabricated ditch for ballastless track of rail transit upper cover parking lot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120817908.7U CN215252004U (en) 2021-04-21 2021-04-21 Prefabricated ditch for ballastless track of rail transit upper cover parking lot

Publications (1)

Publication Number Publication Date
CN215252004U true CN215252004U (en) 2021-12-21

Family

ID=79509942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120817908.7U Active CN215252004U (en) 2021-04-21 2021-04-21 Prefabricated ditch for ballastless track of rail transit upper cover parking lot

Country Status (1)

Country Link
CN (1) CN215252004U (en)

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