CN218666931U - Line-to-line water collecting well structure for high-speed railway roadbed - Google Patents
Line-to-line water collecting well structure for high-speed railway roadbed Download PDFInfo
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- CN218666931U CN218666931U CN202223218651.7U CN202223218651U CN218666931U CN 218666931 U CN218666931 U CN 218666931U CN 202223218651 U CN202223218651 U CN 202223218651U CN 218666931 U CN218666931 U CN 218666931U
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Abstract
The utility model discloses a space sump pit structure for high-speed railway road bed, include: two groups of ballastless tracks are arranged; the well body structure is correspondingly arranged between the two groups of ballastless tracks, and a plurality of built-in reinforcing steel bars are arranged inside the well body structure; the corrugated drain pipes are provided with a plurality of groups, the groups of corrugated drain pipes are communicated with two side parts of the well body structure respectively in a staggered manner, the plurality of built-in steel bars integrally extend to surround the outer side parts of the corrugated drain pipes, and the groups of corrugated drain pipes extend obliquely downwards; and the cast iron wellhead structure is fixedly connected and assembled at the top of the well body structure. The problem of the collector well shortage that the ballastless track road bed section set up between the double-line space among the prior art, and original collector well compaction effect is relatively poor, fill the technical problem that the body quality is difficult to effectively hold control is solved.
Description
Technical Field
The utility model relates to a railway engineering technical field particularly, relates to a space sump pit structure for high-speed railway road bed.
Background
At present, with the continuous development of railway engineering, high-speed railways are increasingly popularized, and accordingly bridge foundations are more and more widely applied. Before the construction of a ballastless track, the offline construction content of a roadbed project is generally required to be completed.
In the prior art, the water collecting well between the road base lines can effectively remove track accumulated water as one of offline construction contents. However, for ballastless tracks, especially, the collector wells arranged between double lines in a roadbed section are in shortage, the collector well bodies arranged at the tunnel entrance in the original downhill direction and the bridge head in the downhill direction are of a concrete structure, and most of the collector well bodies are prefabricated collector wells installed in a segmented manner, the built-in reinforcing steel bars of the collector well bodies are scattered, the number of breakpoints is large, the compaction effect of the prefabricated collector well positions is poor, and the quality of a filling body is difficult to effectively control.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a line space sump pit structure for high-speed railway road bed to solve the sump pit shortage that the ballastless track road bed section set up between the double-line among the prior art, and original sump pit compaction effect is relatively poor, fill the technical problem that the body quality is difficult to effectively hold control.
In order to achieve the above object, the present invention provides the following technical solutions:
an inter-line collector well structure for a high speed railway roadbed, comprising:
two groups of ballastless tracks are arranged;
the well body structure is correspondingly arranged between the two groups of ballastless tracks, and a plurality of built-in reinforcing steel bars are arranged inside the well body structure;
the corrugated drain pipes are arranged in a plurality of groups, the groups of corrugated drain pipes are communicated with two side parts of the well body structure in a staggered manner, the plurality of built-in steel bars integrally extend to surround the outer side parts of the corrugated drain pipes, and the groups of corrugated drain pipes extend downwards in an inclined manner;
and the cast iron wellhead structure is fixedly connected and assembled at the top of the well body structure.
On the basis of the above technical solution, it is right that the present invention is further explained as follows:
as a further proposal of the utility model, the two sides of the well body structure are respectively provided with a backfilling concrete layer.
The corrugated drain pipes are all arranged in the backfill concrete layer and extend downwards in an inclined mode.
As a further aspect of the present invention, the present invention further includes:
and the two groups of drainage channels are respectively arranged at the outer side parts of the two groups of ballastless tracks in a one-to-one correspondence manner, and the plurality of groups of corrugated drainage pipes are respectively communicated with the two groups of drainage channels in a corresponding manner.
As a further aspect of the present invention, the two sides of the well structure have graded gravel layers respectively, and the graded gravel layers correspond to the top of the backfilling concrete layer.
As a further scheme of the utility model, well body structure both sides the track supporting layer is still pour respectively to the top on level grading metalling, and is two sets of ballastless track one-to-one erects in two sets of respectively the top of track supporting layer.
As a further aspect of the present invention, the cast iron wellhead structure is assembled between two sets of the rail supporting layers.
As a further proposal of the utility model, the cast iron wellhead structure comprises a nodular cast iron well ring, a water guide slope and a nodular cast iron grate.
The nodular cast iron well ring is fixedly connected to the outer edge part of the well body structure, a water guide slope is arranged between the outer peripheral part of the nodular cast iron well ring and the track supporting layer, and the nodular cast iron grate is assembled and installed on the inner side part of the nodular cast iron well ring.
As a further aspect of the utility model, a side portion rotation of nodular cast iron walling crib is equipped with the round pin axle, the nodular cast iron grate passes through round pin axle switching assembly install in the medial part of nodular cast iron walling crib.
As a further aspect of the present invention, the ductile iron grate is based on the angle of overturning of the ductile iron walling crib is not less than 120 °.
As a further proposal of the utility model, the top end surface of the ductile cast iron grate is coated with at least one asphalt paint mark.
The utility model discloses following beneficial effect has:
the structure can realize that the water collecting well is arranged between the double lines on the roadbed section of the ballastless track; meanwhile, the compaction effect of the position of the water collecting well is effectively guaranteed by utilizing the integral water collecting well body, and the quality of the filling body is improved; in addition, utilize cast iron well head structure more original reinforced concrete apron more light, it is more convenient that the operation personnel use, has effectively promoted work efficiency and holistic functional practicality.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and the structures, proportions, sizes, etc. shown in the present specification are only used to match the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and any modifications of the structures, changes of the proportion relations, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the functions and the achievable objects of the present invention.
Fig. 1 is an overall structure schematic diagram of a water collecting well structure between lines for a high-speed railway roadbed provided by the embodiment of the utility model.
Fig. 2 is the utility model provides an assembly structure sketch map between cast iron well head structure and well body structure in the space sump pit structure for high-speed railway road bed.
Fig. 3 is a schematic view of an assembly structure between a well body structure and a corrugated drain pipe in a water collecting well structure between lines of a high-speed railway roadbed provided by the embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a cast iron wellhead structure in the line water collecting well structure for the high-speed railway roadbed provided by the embodiment of the utility model.
Fig. 5 is a schematic view of an assembly structure of a corrugated drain pipe in a water collecting well structure between lines for a high-speed railway roadbed according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the well body structure 1 is internally provided with a steel bar 11; backfilling a concrete layer 2; a corrugated drain pipe 3; a drainage channel 4; a graded crushed stone layer 5; a rail supporting layer 6; a ballastless track 7;
cast iron wellhead structure 8: a nodular cast iron well ring 81, a pin shaft 811, a water guide slope 82 and a nodular cast iron grate 83.
Detailed Description
The present invention is described in detail with reference to the specific embodiments, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right" and "middle" are used 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 without substantial changes in the technical content should be regarded as the scope of the present invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides an inter-line water collecting well structure for a high-speed railway roadbed, which includes a well body structure 1, a backfill concrete layer 2, a corrugated drain pipe 3, a drain channel 4, a graded gravel layer 5, a track supporting layer 6, a ballastless track 7 and a cast iron well head structure 8, and is used for realizing the arrangement of a water collecting well between two lines in a roadbed section of the ballastless track; meanwhile, the compaction effect of the position of the water collecting well is effectively guaranteed by utilizing the integral water collecting well body, and the quality of the filling body is improved; in addition, the cast iron wellhead structure 8 is lighter than the original reinforced concrete cover plate, the operation personnel use more conveniently, and the working efficiency is improved.
Referring to fig. 1, the well structure 1 is correspondingly disposed between two groups of ballastless tracks 7; specifically, two sides of the well body structure 1 are respectively provided with a backfilled concrete layer 2; the corrugated drain pipe 3 is provided with a plurality of groups, the corrugated drain pipe 3 is in a staggered mode and is respectively communicated with and arranged at two side parts of the well body structure 1, and the corrugated drain pipe 3 is arranged in the backfilled concrete layer 2 and extends downwards in an inclined mode.
The drainage canal 4 is equipped with two sets ofly, and two sets of the drainage canal 4 one-to-one is seted up in two sets ofly respectively the outside portion of ballastless track 7, 1 both sides portion of well body structure the corrugated drain pipe 3 corresponds respectively and is two sets of put through mutually between the drainage canal 4 for make the inside ponding of well body structure 1 can discharge respectively to the drainage canal 4 along with a plurality of groups of corrugated drain pipe 3 of crisscross setting, and then discharge by the drainage canal 4.
Preferably, referring to fig. 2 to 3, the well body structure 1 is internally provided with a plurality of built-in steel bars 11, the plurality of built-in steel bars 11 integrally extend around the outer side of the corrugated drain pipe 3 to form an integrally cast water collecting well body, the outer part of the well body is not provided with a sectional assembly, the inner part of the well body is not provided with steel bar breakpoints, the compaction effect of the position of the water collecting well is effectively ensured, and the quality of the integral filling body is improved.
Referring to fig. 1 and 5, two side portions of the well structure 1 are respectively provided with a graded gravel layer 5, the graded gravel layer 5 is correspondingly located above the backfill concrete layer 2, two track supporting layers 6 are further respectively cast above the graded gravel layers 5 on the two sides, and two sets of ballastless tracks 7 are respectively erected on the tops of the two sets of track supporting layers 6 in a one-to-one correspondence manner, so as to form a predetermined ballastless track assembling structure.
The cast iron wellhead structure 8 is assembled between the two sets of rail bearing layers 6; specifically, referring to fig. 2 and 4, the cast iron wellhead structure 8 includes a nodular cast iron well ring 81, a water guide slope 82 and a nodular cast iron grate 83; the nodular cast iron well ring 81 is fixedly connected to the outer edge of the well body structure 1, and a water guide slope 82 is arranged between the outer periphery of the nodular cast iron well ring 81 and the track supporting layer 6 and used for better accumulating water by means of the water guide slope 82; a pin shaft 811 is rotatably assembled at one side part of the nodular cast iron well ring 81, and the nodular cast iron grate 83 is connected to the inner side part of the nodular cast iron well ring 81 through the pin shaft 811 so that the nodular cast iron grate 83 can be conveniently opened and closed to overhaul and maintain the well body structure 1.
The ductile cast iron grate 83 is based on that the reversible angle of the ductile cast iron well curb 81 is not less than 120 degrees, just the ductile cast iron well curb 81 with the ductile cast iron grate 83 all adopts the ductile cast iron QT500-7 material, the top end face of the ductile cast iron grate 83 is painted with at least one pitch paint sign.
The concrete construction process comprises the following steps:
(1) Before the surface layer of a roadbed of the roadbed is filled (after pre-compaction soil is unloaded during the preloading process of roadbed design), a groove is dug on the top surface of the bottom layer of the roadbed, a corrugated drain pipe 3 is buried, then C25 concrete is backfilled to form a backfilled concrete layer 2, water outlets of the corrugated drain pipes 3 are arranged in a left-right staggered mode, the distance between adjacent water collecting wells is controlled to be about 50m, and meanwhile, the water outlets of the water collecting wells are arranged in an arch-shaped framework main framework or a water intercepting and draining groove water flowing groove.
(2) Before the track is laid in the construction of foundation bed top layer, according to the position of buried pipeline in advance, carry out artifical excavation pore-forming in corresponding position to after the manual work is maintained, lay plain concrete screed-coat, cast-in-place sump pit and with ripple drain pipe 3 intercommunication, fill the peripheral gap of sump pit with the C25 concrete.
(3) And binding steel bars, erecting a template, pouring concrete, and constructing the walling crib and the concrete together.
(4) And constructing a waterproof sealing layer between the lines after the track is laid.
(5) The construction elevation at the inlet of the corrugated drain pipe 3 is 2cm higher than the design elevation, and the elevation difference is cast flat at the bottom of the well by using concrete when the water collecting well is cast.
(6) And (3) after the concrete is poured, maintaining for not less than 7 days, and maintaining the geotextile after the strength reaches more than 70 percent by removing the formwork and using the geotextile, wherein the geotextile must be kept moist.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A line-to-line water collection well structure for a high speed railway subgrade, comprising:
two groups of ballastless tracks are arranged;
the well body structure is correspondingly arranged between the two groups of ballastless tracks, and a plurality of built-in reinforcing steel bars are arranged inside the well body structure;
the corrugated drain pipes are arranged in a plurality of groups, the groups of corrugated drain pipes are communicated with two side parts of the well body structure in a staggered manner, the plurality of built-in steel bars integrally extend to surround the outer side parts of the corrugated drain pipes, and the groups of corrugated drain pipes extend downwards in an inclined manner;
and the cast iron wellhead structure is fixedly connected and assembled at the top of the well body structure.
2. The inter-line water collection well structure for a high speed railway roadbed according to claim 1,
two sides of the well body structure are respectively provided with a backfilled concrete layer;
the corrugated drain pipes are all arranged in the backfilled concrete layer and extend obliquely downwards.
3. The interline collector well structure for a high speed railway subgrade according to claim 1, further comprising:
and the two groups of drainage channels are respectively arranged at the outer side parts of the two groups of ballastless tracks in a one-to-one correspondence manner, and the plurality of groups of corrugated drainage pipes are respectively communicated with the two groups of drainage channels in a corresponding manner.
4. The inter-line water collection well structure for a high speed railway roadbed according to claim 2,
and two sides of the well body structure are respectively provided with a graded crushed stone layer, and the graded crushed stone layers are correspondingly positioned above the backfilled concrete layer.
5. The inter-line water collection well structure for a high speed railway roadbed according to claim 4,
and track supporting layers are respectively poured above the graded gravel layers on the two sides of the well body structure, and the two groups of ballastless tracks are respectively erected on the tops of the two groups of track supporting layers in a one-to-one correspondence mode.
6. The inter-line water collection well structure for a high speed railway roadbed according to claim 5,
the cast iron wellhead structure is assembled between the two sets of rail bearing layers.
7. The inter-line water collection well structure for a high speed railway roadbed according to claim 6,
the cast iron wellhead structure comprises a nodular cast iron well ring, a water guide slope and a nodular cast iron grate;
the nodular cast iron well ring is fixedly connected to the outer edge part of the well body structure, a water guide slope is arranged between the outer peripheral part of the nodular cast iron well ring and the track supporting layer, and the nodular cast iron grate is assembled and installed on the inner side part of the nodular cast iron well ring.
8. The inter-line collector well structure for a high speed railway roadbed of claim 7,
and a pin shaft is rotatably assembled at one side part of the nodular cast iron well ring, and the nodular cast iron grate is installed at the inner side part of the nodular cast iron well ring through the pin shaft in a switching assembly manner.
9. The inter-line water collection well structure for a high speed railway roadbed according to claim 7 or 8,
the turnover angle of the nodular cast iron grate based on the nodular cast iron walling crib is not less than 120 degrees.
10. The inter-line water collection well structure for a high speed railway roadbed according to claim 7 or 8,
and at least one asphalt paint mark is coated on the top end surface of the nodular cast iron grate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223218651.7U CN218666931U (en) | 2022-11-30 | 2022-11-30 | Line-to-line water collecting well structure for high-speed railway roadbed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223218651.7U CN218666931U (en) | 2022-11-30 | 2022-11-30 | Line-to-line water collecting well structure for high-speed railway roadbed |
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| CN218666931U true CN218666931U (en) | 2023-03-21 |
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| CN202223218651.7U Active CN218666931U (en) | 2022-11-30 | 2022-11-30 | Line-to-line water collecting well structure for high-speed railway roadbed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403482A (en) * | 2023-12-14 | 2024-01-16 | 北京城建信捷轨道交通工程咨询有限公司 | Ballastless track road surface waterproof structure and construction method |
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2022
- 2022-11-30 CN CN202223218651.7U patent/CN218666931U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403482A (en) * | 2023-12-14 | 2024-01-16 | 北京城建信捷轨道交通工程咨询有限公司 | Ballastless track road surface waterproof structure and construction method |
| CN117403482B (en) * | 2023-12-14 | 2024-02-23 | 北京城建信捷轨道交通工程咨询有限公司 | Ballastless track road surface waterproof structure and construction method |
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