CN217710101U - Widen concrete compoboard of existing railway curb - Google Patents
Widen concrete compoboard of existing railway curb Download PDFInfo
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- CN217710101U CN217710101U CN202221177839.9U CN202221177839U CN217710101U CN 217710101 U CN217710101 U CN 217710101U CN 202221177839 U CN202221177839 U CN 202221177839U CN 217710101 U CN217710101 U CN 217710101U
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Abstract
The utility model provides a concrete composite slab for widening the existing railway shoulder, wherein a first rectangular tenon and a first rectangular groove are respectively arranged at the two ends of a sand-free concrete slab in the length direction; the bottom of the non-sand concrete plate is provided with a plurality of rows of round tenons and rectangular drainage tenons, each row of round tenons is connected through the rectangular drainage tenon, and two ends of each rectangular drainage tenon extend to the edge of the non-sand concrete plate; the first rectangular tenon is inserted into the first rectangular groove of the adjacent sand-free concrete slab; a second rectangular tenon and a second rectangular groove are respectively arranged at two ends of the plain concrete slab in the length direction; and the second rectangular tenon is inserted into the second rectangular groove of the adjacent plain concrete slab. The top of the sand-free concrete slab is provided with a mounting groove, the bottom of the plain concrete slab is provided with a mounting tenon matched with the mounting groove, and the mounting tenon is inserted in the mounting groove. The utility model discloses construction process and material are selected conveniently, have reduced the setting of outlet, can reach the purpose of widening existing railway curb.
Description
Technical Field
The utility model belongs to the technical field of the railway roadbed, in particular to widen concrete compoboard of existing railway curb.
Background
After a railway is built, the railway subgrade can be settled to a certain extent under the influence of various factors such as railway foundations, subgrade fillers and the like, so that the width of a railway shoulder is insufficient, and the normal operation of the railway is seriously influenced. The safety of railways is directly affected by the proper treatment of the problem of widening the shoulders of railways, and the operation safety of the whole railway system is concerned. With the high-speed development of China railways, the method for widening the railway subgrade is mature day by day, but the problem of exposure is more and more. The existing method for widening the roadbed mainly comprises filling soil and widening the side wall, building a stone pile by grouting and pouring concrete in situ.
Wherein the filling side width is the filling side width at the outer side of the railway roadbed. The filling side width can solve the problem of insufficient road shoulder width, but the protection damage to the slope surface of the existing roadbed is large, and meanwhile, because the settlement of a new filling layer and the filling of the existing roadbed is not uniform, longitudinal cracks are easily generated at the filling combination part.
The grout piece stone buttress is provided with grout piece stone shoulder pad on the railway curb, and the grout piece stone shoulder pad can solve the problem that the curb width is not enough when the value is less, can not solve the problem that the curb width is not enough completely.
The cast-in-place concrete is cast-in-place concrete on a railway shoulder, can solve the problem of insufficient width of the shoulder, is not beneficial to roadbed drainage, and easily generates roadbed frost heaving diseases in northern areas.
The three methods for widening the width of the road shoulder have the advantages that the damage to the slope of the existing roadbed is large due to the width of the filled soil side, the construction process requirement is high, and the influence on the existing line is relatively large. The grouted stone pile can only solve the problem that the width of the road shoulder is insufficient and the value is small. Cast-in-place concrete is not beneficial to roadbed drainage and is easy to generate secondary freezing damage. The method can not completely realize convenient roadbed widening construction, has small damage to the existing roadbed and does not produce secondary diseases.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a widen concrete composite slab of existing railway curb can effectively solve the curb width not enough, and construction process and material are selected conveniently, have reduced the setting of outlet, can reach the purpose of widening existing railway curb to avoid domatic destruction to existing road bed.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a concrete composite slab for widening the existing railway shoulder, which comprises a sand-free concrete slab and a plain concrete slab, wherein the plain concrete slab is arranged above the sand-free concrete slab; wherein the content of the first and second substances,
a first rectangular tenon and a first rectangular groove are respectively arranged at two ends of the sand-free concrete slab in the length direction; the bottom of the sand-free concrete plate is provided with a plurality of rows of round tenons and rectangular drainage tenons, each row of round tenons is connected through the rectangular drainage tenon, and two ends of each rectangular drainage tenon extend to the edge of the sand-free concrete plate; the first rectangular tenon is inserted into the first rectangular groove of the adjacent sand-free concrete slab, and the first rectangular tenon is matched with the first rectangular groove;
a second rectangular tenon and a second rectangular groove are respectively arranged at two ends of the plain concrete slab in the length direction; the second rectangular tenon is inserted into the second rectangular groove of the adjacent plain concrete slab, and the second rectangular tenon is matched with the second rectangular groove;
the top of the sand-free concrete slab is provided with an installation groove, the bottom of the plain concrete slab is provided with an installation tenon matched with the installation groove, and the installation tenon is inserted into the installation groove.
Preferably, the width of the sand-free concrete slab and the width of the plain concrete slab are the same.
Preferably, the mounting groove has the same width as the first rectangular tenon, and the mounting tenon has the same width as the second rectangular tenon.
Preferably, the bottom of the sand-free concrete slab is transversely provided with a plurality of rows of circular tenons, and the number of the circular tenons in each row is two.
The utility model discloses following beneficial effect has:
the utility model provides a widen concrete composite slab of existing railway curb, lower floor adopts no sand concrete slab, has very strong water permeability, and the upper strata adopts plain concrete slab, can also reduce the lower floor board and be blockked up by debris when satisfying intensity; the adjacent plates are connected in a tenon and groove inserting manner, and the adjacent plain concrete plates are connected in a tenon and groove inserting manner, so that the stability is good; the top of the sand-free concrete plate is provided with a mounting groove, the bottom of the plain concrete plate is provided with a mounting tenon matched with the mounting groove, and the mounting tenon is inserted into the mounting groove, so that the connection stability between the sand-free concrete plate and the plain concrete plate is good; the round tenon is arranged at the bottom of the sand-free concrete slab, so that the anti-sliding performance of the concrete composite slab is enhanced, and the rectangular drainage tenon can drain accumulated water of the round tenon.
The utility model reduces the arrangement of the water drain holes by utilizing the super water permeability of the lower layer of the non-sand concrete; the aim of widening the shoulder of the existing railway can be achieved, and the damage to the slope of the existing roadbed is avoided; the non-sand concrete plate and the plain concrete plate can be prefabricated in a prefabricated yard, construction is convenient and fast, stability is good, materials are reasonably used, secondary roadbed freezing damage is avoided, and the road shoulder widening effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a perspective view of a concrete composite slab for widening an existing railway shoulder according to an embodiment of the present invention;
FIG. 2 is a top view of a concrete composite slab for widening an existing railway shoulder according to an embodiment of the present invention;
FIG. 3 is a bottom view of the concrete composite slab for widening the shoulder of an existing railway according to the embodiment of the present invention;
FIG. 4 is a front view of a concrete composite slab for widening an existing railway shoulder according to an embodiment of the present invention;
fig. 5 is a sectional view of the concrete composite slab for widening the shoulder of the existing railway according to the embodiment of the present invention.
Description of reference numerals:
1. a sand-free concrete slab; 11. a first rectangular tenon; 12. a first rectangular groove; 13. a circular tenon; 14. a rectangular drainage tenon; 15. installing a groove; 2. a plain concrete slab; 21. a second rectangular tenon; 22. a second rectangular groove; 23. and installing the tenon.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment provides a concrete composite slab for widening an existing railway shoulder, which comprises a sand-free concrete slab 1 and a plain concrete slab 2, wherein the plain concrete slab 2 is arranged above the sand-free concrete slab 1, as shown in fig. 1 to 5; wherein, two ends of the sand-free concrete plate 1 in the length direction are respectively provided with a first rectangular tenon 11 and a first rectangular groove 12; the bottom of the non-fine concrete plate 1 is provided with a plurality of rows of round tenons 13 and rectangular drainage tenons 14, each row of round tenons 13 is connected through the rectangular drainage tenons 14, and two ends of each rectangular drainage tenon 14 extend to the edge of the non-fine concrete plate 1; the round tenon 5 is arranged at the bottom of the sand-free concrete plate 1, so that the anti-sliding performance of the concrete composite slab is enhanced, and the rectangular drainage tenon 6 can drain accumulated water of the round tenon 5. The first rectangular tenon 11 is inserted into the first rectangular groove 12 of the adjacent sand-free concrete slab 1, and the first rectangular tenon 11 is matched with the first rectangular groove 12. The two ends of the plain concrete slab 2 in the length direction are respectively provided with a second rectangular tenon 21 and a second rectangular groove 22; the second rectangular tenon 21 is inserted into the second rectangular groove 22 of the adjacent plain concrete slab 2, and the second rectangular tenon 21 is matched with the second rectangular groove 22. The top of the sand-free concrete plate 1 is provided with a mounting groove 15, the bottom of the plain concrete plate 2 is provided with a mounting tenon 23 matched with the mounting groove 15, and the mounting tenon 23 is inserted into the mounting groove 15.
The width of the sand-free concrete plate 1 is the same as that of the plain concrete plate 2. The mounting groove 15 is the same width as the first rectangular tenon 11, and the mounting tenon 23 is the same width as the second rectangular tenon 21. The bottom of the sand-free concrete slab 1 is transversely provided with a plurality of rows of round tenons 13, and the number of the round tenons 13 in each row is two.
The prefabricated site is prefabricated with sand-free concrete plates and plain concrete plates, the plates are transported to a construction site by a railway transportation plate vehicle, redundant ballast at the foot of railway ballast is removed, the existing road shoulder is leveled, the concrete composite plates are installed, the integrity of the concrete composite plates is realized by the connection mode of inserting the tenons and the grooves, the purpose of widening the existing railway road shoulder is achieved, and the slope surface of the existing roadbed is prevented from being damaged. The sand-free concrete plate of lower floor has superstrong water permeability, has reduced the setting of outlet.
According to the technical scheme, the concrete composite slab for widening the existing railway shoulder provided by the embodiment reduces the arrangement of water drainage holes by utilizing the super-strong water permeability of the lower-layer sand-free concrete; the aim of widening the shoulder of the existing railway can be achieved, and the damage to the slope of the existing roadbed is avoided; the sand-free concrete plate and the plain concrete plate can be prefabricated in a prefabricated yard, construction is convenient and fast, stability is good, materials are reasonably utilized, secondary roadbed freezing damage is avoided, and road shoulder widening effect is better.
The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the present invention is defined by the claims. All utilize technical scheme of the embodiment of the utility model, or technical staff in the field is in the utility model discloses under embodiment technical scheme's the inspiration the utility model discloses in the essence and the protection scope of the embodiment, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change and improvement etc. that the application scope was made, all should still belong to within the protection scope is covered to the patent of the embodiment of the utility model.
Claims (4)
1. The concrete composite slab for widening the existing railway shoulder is characterized by comprising a sand-free concrete slab (1) and a plain concrete slab (2), wherein the plain concrete slab (2) is arranged above the sand-free concrete slab (1); wherein, the first and the second end of the pipe are connected with each other,
two ends of the sand-free concrete plate (1) in the length direction are respectively provided with a first rectangular tenon (11) and a first rectangular groove (12); the bottom of the sand-free concrete plate (1) is provided with a plurality of rows of round tenons (13) and rectangular drainage tenons (14), each row of round tenons (13) is connected through the rectangular drainage tenon (14), and two ends of each rectangular drainage tenon (14) extend to the edge of the sand-free concrete plate (1); the first rectangular tenon (11) is inserted into the first rectangular groove (12) of the adjacent sand-free concrete slab (1), and the first rectangular tenon (11) is matched with the first rectangular groove (12);
two ends of the plain concrete slab (2) in the length direction are respectively provided with a second rectangular tenon (21) and a second rectangular groove (22); the second rectangular tenon (21) is inserted into the second rectangular groove (22) of the adjacent plain concrete slab (2), and the second rectangular tenon (21) is matched with the second rectangular groove (22);
the top of the sand-free concrete plate (1) is provided with a mounting groove (15), the bottom of the plain concrete plate (2) is provided with a mounting tenon (23) matched with the mounting groove (15), and the mounting tenon (23) is inserted into the mounting groove (15).
2. Concrete composite slab for widening existing railway shoulders according to claim 1, characterized in that said non-sandy concrete slab (1) and plain concrete slab (2) are of the same width.
3. Concrete composite slab widening an existing railway shoulder according to claim 2, characterized in that the mounting groove (15) is the same width as the first rectangular tenon (11) and the mounting tenon (23) is the same width as the second rectangular tenon (21).
4. Concrete composite slab for widening existing railway shoulders according to claim 1, characterized in that the bottom of the said non-fine concrete slab (1) is provided with several rows of round tenons (13) in the transverse direction, and the number of the round tenons (13) in each row is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221177839.9U CN217710101U (en) | 2022-05-17 | 2022-05-17 | Widen concrete compoboard of existing railway curb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221177839.9U CN217710101U (en) | 2022-05-17 | 2022-05-17 | Widen concrete compoboard of existing railway curb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217710101U true CN217710101U (en) | 2022-11-01 |
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ID=83794419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221177839.9U Active CN217710101U (en) | 2022-05-17 | 2022-05-17 | Widen concrete compoboard of existing railway curb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217710101U (en) |
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2022
- 2022-05-17 CN CN202221177839.9U patent/CN217710101U/en active Active
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