CN215482412U - Transverse drainage structure of general speed railway - Google Patents
Transverse drainage structure of general speed railway Download PDFInfo
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- CN215482412U CN215482412U CN202120451215.0U CN202120451215U CN215482412U CN 215482412 U CN215482412 U CN 215482412U CN 202120451215 U CN202120451215 U CN 202120451215U CN 215482412 U CN215482412 U CN 215482412U
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Abstract
The embodiment of the application provides a horizontal drainage structures of general speed railway, includes: a body and stringer assembly; the main body has a drainage passage extending in a lateral direction of the express railway, a top of the drainage passage being open; the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam and the second longitudinal beam are erected at the opening position of the top of the drainage channel and are arranged at intervals along the transverse direction of the ordinary speed railway so as to be used for laying sleepers of the ordinary speed railway. By adopting the transverse drainage structure of the ordinary-speed railway, the construction cost of the ordinary-speed railway line can be reduced.
Description
Technical Field
The utility model relates to the field of rail transit, in particular to a transverse drainage structure of a general speed railway.
Background
In order to facilitate the lateral communication of water flow on two sides of a railway subgrade, structures such as drainage culverts are generally required to be arranged at the bottom of the general speed railway, so that the water flow can pass through the railway subgrade from one side of the general speed railway to the other side, and the influence on the railway safety caused by the water flow blocking of the submerged railway subgrade is avoided.
The structural style of the drainage culvert of the ordinary speed railway is more, and common structural style has apron culvert, box culvert, arch culvert etc. in order to guarantee the ride comfort of train operation, the top surface of these drainage culverts need lay out filling soil and railway ballast, and the construction process is comparatively loaded down with trivial details and can lead to the engineering cost of whole ordinary speed railway route higher relatively.
SUMMERY OF THE UTILITY MODEL
In view of the above, a main object of the embodiments of the present application is to provide a lateral drainage structure of a general speed railway, which can reduce the construction cost of a general speed railway route.
In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:
the embodiment of the application provides a horizontal drainage structures of general speed railway, includes:
a main body having a drainage passage extending in a lateral direction of the express railway, a top of the drainage passage being open;
the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam and the second longitudinal beam are erected at the opening position of the top of the drainage channel and are arranged along the transverse interval of the ordinary speed railway so as to be used for laying sleepers of the ordinary speed railway.
In one embodiment, the first longitudinal beam and the second longitudinal beam are arranged at positions satisfying: the first longitudinal beam is positioned right below one of the two steel rails of the ordinary speed railway, and the second longitudinal beam is positioned right below the other one of the two steel rails.
In one embodiment, the direction of extension of the drainage channel is orthogonal or diagonal to the direction of extension of the regular speed railway.
In one embodiment, the main body comprises a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are arranged at intervals along the extending direction of the ordinary speed railway and are connected with the bottom plate, the drainage channel is defined by the first side wall, the second side wall and the bottom plate, and the first longitudinal beam and the second longitudinal beam are connected with the first side wall and the second side wall.
In one embodiment, one end of the first longitudinal beam in the length direction protrudes out of the outer surface of the first side wall, and the other end of the first longitudinal beam in the length direction protrudes out of the outer surface of the second side wall;
one end of the second longitudinal beam along the length direction protrudes out of the outer surface of the first side wall, and the other end of the second longitudinal beam along the length direction protrudes out of the outer surface of the second side wall.
In one embodiment, the minimum distance between the top surface of the bottom plate and the longitudinal beam assembly is 1 m-2.5 m, and the length of the first longitudinal beam protruding out of the outer surface of the first side wall and the length of the first longitudinal beam protruding out of the outer surface of the second side wall are not less than 2 times of the distance between sleepers.
In one embodiment, the top surface of the first side rail, the top surface of the second side rail, the top surface of the first side wall, and the top surface of the second side wall are flush.
In one embodiment, the bottom end of the first side wall and the bottom end of the second side wall both protrude from the bottom surface of the bottom plate.
In one embodiment, the thickness of the first side wall tapers from the top surface of the base plate to the top surface of the first side wall, and the thickness of the second side wall tapers from the top surface of the base plate to the top surface of the second side wall.
In one embodiment, the width of the cross-section of the drainage channel is gradually larger from the bottom end to the top end.
The utility model provides a horizontal drainage structures of ordinary speed railway, top through with the drainage channel sets up to open structural style, erect first longeron and second longeron in the open department at drainage channel top, can form transversely can the drainage, the structure of vertical feasible train, this horizontal drainage structures's first longeron and second longeron can directly be used for laying the sleeper, and need not to lay filling soil and railway ballast on first longeron and second longeron, therefore, can reduce the elevation of ordinary speed railway route vertical section, reduce the fill volume of railway roadbed, and then can reduce the engineering cost of ordinary speed railway route.
Drawings
FIG. 1 is a schematic layout of a lateral drainage structure according to a first embodiment of the present application;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic structural view of the lateral drainage structure shown in FIG. 2;
FIG. 4 is a view from the direction B of FIG. 3;
fig. 5 is a schematic layout of a lateral drainage structure according to a second embodiment of the present application.
Description of the reference numerals
A lateral drainage structure 100; a main body 110; a drain passage 110 a; a base plate 111; a first side wall 112; second one
210; a steel rail 220; 300, of the railway ballast; a railroad bed 400.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the present application, the "lateral direction" shown in fig. 1 is the lateral direction of the normal speed railway, the "extending direction" shown in fig. 1 is the extending direction of the normal speed railway, both the "longitudinal direction of the first longitudinal beam" and the "longitudinal direction of the second longitudinal beam" are the "extending direction" shown in fig. 1, the "top" and "bottom" orientations or positional relationships are based on the orientations or positional relationships shown in fig. 3, and the "bottom" direction shown in fig. 3. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.
In the description of the present application, the unit english abbreviation "m" means the unit in meters.
The ordinary speed railway 200 described in the present application refers to a railway designed to run at a speed of 200 km or less per hour.
Referring to fig. 1 to 4, the transverse drainage structure 100 includes a main body 110 and a longitudinal beam assembly 120; the main body 110 has a drainage passage 110a extending in a lateral direction of the common speed railway 200, and a top of the drainage passage 110a is open, that is, the top of the drainage passage 110a communicates with the outside, not a closed structure; the longitudinal member assembly 120 includes a first longitudinal member 121 and a second longitudinal member 122, each of the first and second longitudinal members 121 and 122 is erected at an open top of the drainage passage 110a and is disposed at intervals in a lateral direction of the normal speed railway 200 for laying sleepers 210 of the normal speed railway 200, that is, the sleepers 210 are laid directly on top surfaces of the first and second longitudinal members 121 and 122.
In order to ensure the smoothness of train running, when a general-speed railway is laid, filling soil and railway ballast need to be laid on the top surface of the drainage culvert, and then sleepers and steel rails need to be laid on the railway ballast. However, the top surface of the drainage culvert is paved with filling soil and ballast, so that the elevation of the longitudinal section of the general-speed railway line is increased, the filling amount of the railway subgrade is increased, and the construction cost is increased.
The top of the drainage channel 110a is set to be an open structural form, the first longitudinal beam 121 and the second longitudinal beam 122 are erected at the open position of the top of the drainage channel 110a, so that a structure of a transversely drainable and longitudinally feasible train is formed, the first longitudinal beam 121 and the second longitudinal beam 122 of the transverse drainage structure 100 can be directly used for laying the sleepers 210, and the filling soil and the ballast 300 do not need to be laid on the first longitudinal beam 121 and the second longitudinal beam 122, so that the elevation of the longitudinal section of the general speed railway 200 route can be reduced, the filling amount of the railway subgrade 400 is reduced, and further the engineering cost of the general speed railway route can be reduced.
It should be noted that, for some relatively low-grade common-speed railways 200, reducing the longitudinal section of the route and reducing the filling amount of the railroad bed 400 are important means for reducing the construction cost, and therefore, the lateral drainage structure 100 according to the embodiment of the present invention is particularly suitable for the relatively low-grade common-speed railways 200.
In addition, since the drainage culvert in the related art is generally of a frame structure with a closed top, overhead work of setting up a bracket and erecting a formwork is required when the top of the drainage culvert is constructed, and the construction is complicated.
And after the top of the drainage channel 110a is set to be the open structure form, the transverse drainage structure 100 of the embodiment of the application not only can reduce overhead operation, but also can save the using amount of reinforcing steel bars and concrete, and shortens the construction time while saving the engineering quantity.
The lateral drainage structure 100 according to the embodiment of the present application can satisfy a small flow rate (flow rate Q) on both sides of the railroad bed 400<10m3S) cross through drainage requirements.
Referring to fig. 1, the extending direction of the drainage channel 110a of the embodiment of the present application may be orthogonal to the extending direction of the normal speed railway 200, and referring to fig. 5, the extending direction of the drainage channel 110a of the embodiment of the present application may also be oblique to the extending direction of the normal speed railway 200 to adapt to different water flow directions.
In an embodiment, referring to fig. 1, fig. 2 and fig. 5, the first longitudinal beam 121 and the second longitudinal beam 122 are disposed at positions satisfying: the first longitudinal beam 121 is positioned right below one of the two rails 220 of the ordinary speed railway 200, and the second longitudinal beam 122 is positioned right below the other of the two rails 220, so that the first longitudinal beam 121 and the second longitudinal beam 122 can effectively support the two rails 220 of the ordinary speed railway 200, and the smoothness of train running can be further improved.
In one embodiment, referring to fig. 2 and 3, the width of the cross section of the drainage channel 110a may gradually increase from the bottom end to the top end to enlarge the water passing area of the drainage channel 110 a. In some embodiments, the cross-section of the drainage channel 110a may also be in the form of a structure with equal width.
In a specific embodiment, referring to fig. 3, a width D1 of a bottom end of a cross section of the drainage channel 110a is 0.6m to 1.2m, a width D2 of a top end of a cross section of the drainage channel 110a is 0.9m to 1.5m, and a minimum distance H1 between a top surface of the bottom plate 111 and the longitudinal beam assembly 120 is 1m to 2.5m, that is, the height and the span of the drainage channel 110a are relatively small, and when the first longitudinal beam 121 and the second longitudinal beam 122 are constructed, only a supporting point and a supporting frame are required to be arranged on the finished bottom plate 111, and a formwork is required to be erected, so that the construction process can be greatly simplified, and the construction time can be shortened.
It should be noted that the first longitudinal beam 121 and the second longitudinal beam 122 in this embodiment have the same height, so the minimum distance H1 between the top surface of the bottom plate 111 and the longitudinal beam assembly 120 in this embodiment is actually the distance between the bottom surface of the first longitudinal beam 121 or the bottom surface of the second longitudinal beam 122 and the top surface of the bottom plate 111, and in some embodiments, when the first longitudinal beam 121 and the second longitudinal beam 122 are not of the same height, the minimum distance H1 between the top surface of the bottom plate 111 and the longitudinal beam assembly 120 is the minimum of the distance between the bottom surface of the first longitudinal beam 121 and the top surface of the bottom plate 111 and the distance between the bottom surface of the second longitudinal beam 122 and the top surface of the bottom plate 111.
In addition, the sectional dimensions of the first longitudinal beam 121 and the second longitudinal beam 122 may be designed according to the width of the cross section of the drainage channel 110a, for example, as described above, the width D1 of the bottom end of the cross section of the drainage channel 110a is 0.6m to 1.2m, the width D2 of the top end of the cross section of the drainage channel 110a is 0.9m to 1.5m, please refer to fig. 3 and 4, the height H2 of the first longitudinal beam 121 may be 0.4m, the width D3 of the first longitudinal beam 121 may be 0.2m, and the height and the width of the second longitudinal beam 122 may be substantially the same as those of the first longitudinal beam 121.
In an embodiment, referring to fig. 2 to 4, the main body 110 includes a bottom plate 111, a first side wall 112 and a second side wall 113, the first side wall 112 and the second side wall 113 are disposed at intervals along the extending direction of the ordinary railway 200 and connected to the bottom plate 111, the first side wall 112, the second side wall 113 and the bottom plate 111 enclose a drainage channel 110a, and the first longitudinal beam 121 and the second longitudinal beam 122 are connected to the first side wall 112 and the second side wall 113.
In one embodiment, referring to fig. 2 and 4, one end of the first longitudinal beam 121 along the length direction protrudes out of the outer surface of the first side wall 112, and the other end of the first longitudinal beam 121 along the length direction protrudes out of the outer surface of the second side wall 113; one end of the second longitudinal member 122 in the longitudinal direction protrudes from the outer surface of the first side wall 112, and the other end of the second longitudinal member 122 in the longitudinal direction protrudes from the outer surface of the second side wall 113. The region of the first longitudinal member 121 protruding from the outer surface of the first side wall 112 and the region protruding from the outer surface of the second side wall 113 may be provided on the surface layer of the railway roadbed 400, and the region of the second longitudinal member 122 protruding from the outer surface of the first side wall 112 and the region protruding from the outer surface of the second side wall 113 may be provided on the surface layer of the railway roadbed 400, which corresponds to the first longitudinal member 121 and the second longitudinal member 122 overlapping the railway roadbed 400.
The drainage culvert in the related art is a rigid structure relative to the railway roadbed, and in order to ensure the smoothness of train running, special treatment is generally required to be carried out on the fillers and the processes of the railway roadbed at the two sides of the drainage culvert, so that the construction procedures and the construction cost can be increased.
In the embodiment of the present application, the two ends of the first longitudinal beam 121 along the length direction protrude out of the outer surface of the first side wall 112 and the outer surface of the second side wall 113, and the two ends of the second longitudinal beam 122 along the length direction protrude out of the outer surface of the first side wall 112 and the outer surface of the second side wall 113, respectively, so that rigid transition can be realized between the first longitudinal beam 121 and the railway roadbed 400 and between the second longitudinal beam 122 and the railway roadbed 400, and therefore, the requirement for smoothness of train operation can be met without special treatment on the filler and process of the railway roadbed 400, and thus, the construction process is reduced, and the construction cost is further reduced.
In one embodiment, referring to fig. 1 to 3, the top surface of the first longitudinal beam 121, the top surface of the second longitudinal beam 122, the top surface of the first side wall 112, and the top surface of the second side wall 113 are flush, that is, the top surface of the first longitudinal beam 121, the top surface of the second longitudinal beam 122, the top surface of the first side wall 112, and the top surface of the second side wall 113 are on the same horizontal plane, and sleepers 210 may also be directly laid on the top surface of the first side wall 112 and the top surface of the second side wall 113, so that the first side wall 112 and the second side wall 113 can support the ballasts 300 on both sides of the drainage channel 110a, so as to prevent the ballasts 300 from falling into the drainage channel 110a and blocking the drainage channel 110 a.
In one embodiment, referring to fig. 3 and 4, the minimum distance H1 between the top surface of the bottom plate 111 and the longitudinal beam assembly 120 is 1m to 2.5m, and the length D4 of the first longitudinal beam 121 protruding from the outer surface of the first side wall 112 and the length D5 of the first longitudinal beam 121 protruding from the outer surface of the second side wall 113, and the length D6 of the second longitudinal beam 122 protruding from the outer surface of the first side wall 112 and the length D7 of the second longitudinal beam 122 protruding from the outer surface of the second side wall 113 are not less than 2 times the distance between the sleepers 210. The above size range can ensure that the lateral drainage structure 100 is more stably stressed while ensuring the rigid transition between the first longitudinal beam 121 and the railway bed 400 and between the second longitudinal beam 122 and the railway bed 400.
It is understood that, in some embodiments, both ends of the first longitudinal beam 121 in the length direction may be flush with the outer surface of the first side wall 112 and the outer surface of the second side wall 113, respectively, and both ends of the second longitudinal beam 122 in the length direction may be flush with the outer surface of the first side wall 112 and the outer surface of the second side wall 113, respectively.
In an embodiment, referring to fig. 2 and fig. 3, the thickness of the first side wall 112 gradually decreases from the top surface of the bottom plate 111 to the top surface of the first side wall 112, and the thickness of the second side wall 113 gradually decreases from the top surface of the bottom plate 111 to the top surface of the second side wall 113.
In one embodiment, referring to fig. 2 and 3, the bottom end of the first side wall 112 and the bottom end of the second side wall 113 protrude from the bottom surface of the bottom plate 111, so that the first side wall 112, the second side wall 113 and the bottom plate 111 can form a tenon anti-sliding structure, so as to coordinate the interaction between the lateral drainage structure 100 and the soil and resist the braking and traction force of the train together.
In one embodiment, the construction process of the lateral drainage structure 100 may include the following steps: step 501: constructing a bottom plate cushion layer;
the base plate cushion layer is constructed firstly, so that subsequent processes can be conveniently carried out on the hard ground.
Step 502: pouring a bottom plate 111, a first side wall 112 and a second side wall 113;
specifically, during construction, the reinforcing steel bars of the bottom plate 111, the first side wall 112 and the second side wall 113 are bound and form plates are erected, and then concrete is poured and cured to a standard strength.
Step 503: backfilling the railway roadbed 400 outside the first side wall 112 and the second side wall 113 to the surface layer of the railway roadbed 400 layer by layer according to the common railway roadbed process;
the general railroad bed process described herein refers to a process that does not require special treatment of the filler and process of the railroad bed 400.
Step 504: pouring the longitudinal beam;
specifically, during construction, the reinforcing steel bars of the first longitudinal beam 121 and the second longitudinal beam 122 are firstly bound and form, and then concrete is poured to realize effective rigid connection between the first longitudinal beam 121 and the first side wall 112 and the second side wall 113 and effective rigid connection between the second longitudinal beam 122 and the first side wall 112 and the second side wall 113.
After the transverse drainage structure 100 is completed, the railway ballast 300 is paved on two sides of the transverse drainage structure 100, and the sleeper 210 and the steel rail 220 are paved on the first longitudinal beam 121, the second longitudinal beam 122 and the railway ballast 300.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A lateral drainage structure of a general speed railway, comprising:
a main body having a drainage passage extending in a lateral direction of the express railway, a top of the drainage passage being open;
the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam, wherein the first longitudinal beam and the second longitudinal beam are erected at the opening position of the top of the drainage channel and are arranged along the transverse interval of the ordinary speed railway so as to be used for laying sleepers of the ordinary speed railway.
2. The lateral drainage structure according to claim 1, wherein the first longitudinal beam and the second longitudinal beam are disposed at positions satisfying: the first longitudinal beam is positioned right below one of the two steel rails of the ordinary speed railway, and the second longitudinal beam is positioned right below the other one of the two steel rails.
3. The lateral drainage structure of claim 1 or 2, wherein an extending direction of the drainage passage is orthogonal or oblique to an extending direction of the express railway.
4. The lateral drainage structure of claim 1 or 2, wherein the main body comprises a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are arranged at intervals along the extension direction of the ordinary railway and are connected with the bottom plate, the drainage channel is defined by the first side wall, the second side wall and the bottom plate, and the first longitudinal beam and the second longitudinal beam are connected with the first side wall and the second side wall.
5. The lateral drainage structure of claim 4, wherein one lengthwise end of the first longitudinal member projects from the outer surface of the first side wall, and an opposite lengthwise end of the first longitudinal member projects from the outer surface of the second side wall;
one end of the second longitudinal beam along the length direction protrudes out of the outer surface of the first side wall, and the other end of the second longitudinal beam along the length direction protrudes out of the outer surface of the second side wall.
6. The lateral drainage structure of claim 5, wherein the minimum distance between the top surface of the bottom plate and the longitudinal beam assembly is 1m to 2.5m, and the length of the first longitudinal beam protruding from the outer surface of the first side wall and the length of the first longitudinal beam protruding from the outer surface of the second side wall and the length of the second longitudinal beam protruding from the outer surface of the first side wall and the length of the second longitudinal beam protruding from the outer surface of the second side wall are not less than 2 times of the distance between sleepers.
7. The lateral drainage structure of claim 4, wherein the top surface of the first side rail, the top surface of the second side rail, the top surface of the first side wall, and the top surface of the second side wall are flush.
8. The lateral drainage structure of claim 4, wherein the bottom end of the first side wall and the bottom end of the second side wall are protruded from the bottom surface of the bottom plate.
9. The lateral drainage structure of claim 4, wherein the thickness of the first side wall is gradually reduced from the top surface of the bottom plate to the top surface of the first side wall, and the thickness of the second side wall is gradually reduced from the top surface of the bottom plate to the top surface of the second side wall.
10. The lateral drainage structure of claim 4, wherein the width of the cross section of the drainage channel is gradually increased from the bottom end to the top end.
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| CN202120451215.0U CN215482412U (en) | 2021-03-02 | 2021-03-02 | Transverse drainage structure of general speed railway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152315A (en) * | 2021-03-02 | 2021-07-23 | 中铁第四勘察设计院集团有限公司 | Transverse drainage structure of general speed railway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152315A (en) * | 2021-03-02 | 2021-07-23 | 中铁第四勘察设计院集团有限公司 | Transverse drainage structure of general speed railway |
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