WO2020125503A1 - 一种轨枕块与道床之间的凹槽型连接加强结构及施工方法 - Google Patents
一种轨枕块与道床之间的凹槽型连接加强结构及施工方法 Download PDFInfo
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- WO2020125503A1 WO2020125503A1 PCT/CN2019/124373 CN2019124373W WO2020125503A1 WO 2020125503 A1 WO2020125503 A1 WO 2020125503A1 CN 2019124373 W CN2019124373 W CN 2019124373W WO 2020125503 A1 WO2020125503 A1 WO 2020125503A1
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- Prior art keywords
- groove
- sleeper
- track
- track bed
- concrete
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/38—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
Definitions
- the invention belongs to the technical field related to ballastless track, and relates to a technique of connecting a plurality of concrete blocks with concrete filled steel tubes, and more particularly to a groove-type connection reinforcing structure and construction method between a sleeper block and a track bed.
- the sleeper In the railway ballastless track system, there is a prefabricated sleeper.
- the sleeper is installed in the track bed or the concrete is integrated with the track bed. It is used to install fasteners to further fix the upper rail and need to maintain good connection performance with the track bed.
- Chinese patent document CN105463948B discloses a concrete-filled steel tube sleeper suitable for ballastless track.
- the concrete-filled steel tube is used as the connection part of the sleeper block. Compared with the general combined reinforced truss connection, the integrity is stronger and the concrete sleeper can be effectively relieved.
- the concrete-filled steel tube is formed while pouring the concrete sleeper block, and the concrete-filled steel tube is designed to be composed of multiple hollow steel tubes, which is effective Increasing the sleeper's geometric shape and position retention capacity, reducing the amount of reinforcing steel, improving the constructability, and can be directly constructed on site to meet the requirements of the sleeper's ability to resist bending and torsion.
- Concrete is filled into steel tubes to form concrete-filled steel tubes.
- the surface of concrete-filled steel tubes is a relatively smooth steel surface. After it is directly embedded in concrete, recycled rubber, resin materials and other materials, the grip force of contact with it is limited; two steel tubes with an outer diameter of 40mm For example, inserting into a concrete sleeper block with a depth of 200mm, the grip force formed between the concrete and the concrete is 2.5t, and the connection between the concrete-filled steel tube and the sleeper block needs to be strengthened.
- the buried part of the sleeper block is not firmly connected with the post-cast concrete of the bed slab. Diseases such as cracks need to be improved.
- embodiments of the present invention provide a groove-type connection reinforcing structure and construction method between a sleeper block and a track bed, by constructing a groove on the side wall of the sleeper block
- Type reinforced parts such as various grooves with arc-shaped, arc-shaped, polygonal, and irregular cross-sections, especially the position of the grooves and the sleeper connectors are specially designed to make the gap between the sleeper block and the track bed The combination is stronger.
- a groove-type connection reinforcement structure between a sleeper block and a track bed for strengthening the connection between a prefabricated sleeper unit and a track bed in a ballastless track
- the prefabricated sleeper unit includes two or more sleeper blocks and a connector connecting the sleeper blocks in a lateral direction of the track, the sleeper blocks are made of concrete, and the connector is configured to be arranged in a mold for manufacturing the sleeper blocks ,
- a reinforcing member is constructed on one or more side walls of the longitudinal direction of the track, the reinforcing member is directed from the side wall of the sleeper block Recessed grooves, so that during the pouring of the track bed, part of the sleeper blocks and the groove are buried in the concrete of the track bed and poured into one body, and the concrete directly fills the groove To strengthen the connection between the sleeper block and the track bed.
- the groove-shaped reinforcement member is eccentrically arranged in a direction in which the entire center of the longitudinal vertical section of the rail is biased downward.
- the connecting piece is a plurality of concrete-filled steel tubes
- the concrete-filled steel tube is constructed by using hollow steel tubes to be arranged in the manufacturing molds of two sleeper blocks adjacent to each other.
- the sleeper blocks are poured into one body, and at the same time, the hollow steel tube is filled with concrete; the track bed is buried during the pouring of the track bed, so that the sleeper blocks, the concrete filled steel tube, and the track bed are poured into one.
- the groove extends in the lateral direction of the track and penetrates the lateral side wall.
- the same lateral side wall includes a plurality of through grooves arranged in parallel up and down.
- the grooves extend in the lateral direction of the track, and the same lateral side wall includes a plurality of the grooves, which are sequentially spaced apart in the longitudinal direction of the sleeper block.
- the same lateral side wall includes a plurality of sets of the grooves arranged at intervals, and each group is arranged in parallel up and down, and a plurality of sets of the grooves arranged in parallel up and down are spaced from bottom to top, each The spacing between the grooves in the group gradually decreases.
- the cross-sectional size of the groove provided on the cross-section of the sleeper block of the groove provided above and below increases in order from top to bottom;
- the center height of the groove cross section of the groove on the cross section of the sleeper block gradually increases
- the groove depth of the groove on the cross section of the sleeper block gradually decreases
- the groove depth of the groove on the cross section of the sleeper block repeatedly fluctuates from large to small to large, so that The bottom surface of the groove is wavy.
- the projection on the longitudinal vertical plane of the track in addition to the projection of the groove on the horizontal plane having a water surface length component, the projection on the longitudinal vertical plane of the track also has a vertical height component.
- such a groove is also included, which extends in the up-down direction on the side wall of the sleeper block.
- the lower end of the groove penetrates the bottom surface of the sleeper block.
- the depth of the groove extending in the up-down direction gradually increases from the top to the bottom of the cross-section of the sleeper block
- the projection on the horizontal plane also has a horizontal length component of the lateral direction of the track;
- the plurality of grooves extending in the up-down direction are sequentially spaced apart in the lateral direction of the track, and the lengths of the plurality of grooves extending in the up-down direction are sequentially reduced from the middle of the track to the laterally outer side;
- the plurality of grooves extending in the up-down direction are sequentially spaced in the lateral direction of the track, and the lengths of the plurality of grooves extending in the up-down direction are repeatedly shifted from larger to smaller to larger.
- the depth of the sleeper block buried in the track bed is 150 mm; the center axis of the lowest groove is close to the bottom surface of the sleeper block 30-50 mm, and the groove diameter is 20-50 mm.
- a groove-type connection reinforcing structure between the sleeper block and the track bed is also provided for strengthening the connection between the prefabricated sleeper unit and the track bed in the ballastless track
- the prefabricated sleeper unit includes two or more sleeper blocks and a connecting piece connecting the sleeper blocks in the lateral direction of the track, the sleeper blocks are made of concrete, and the connecting pieces and the sleeper blocks are cast as one
- a reinforcing member is configured on one or more side walls in the longitudinal direction of the track, and the reinforcing member is a groove recessed inwardly from the side wall of the sleeper block, so that during the pouring of the track bed, part of the height
- the sleeper block and the groove are embedded in the concrete of the track bed and poured into one body, and the concrete directly fills the groove to strengthen the connection between the sleeper block and the track bed.
- a groove-type reinforcement is constructed on any side wall and/or bottom surface around the sleeper block, for example, the cross section is curved or round Curved, polygonal, irregular and other grooves.
- the sleeper block and the post-casting material are combined with each other to firmly secure the sleeper.
- the sleeper block Fixed in the track bed, the sleeper block is not easy to loosen, and at the same time helps to reduce cracks between the sleeper and the track bed.
- the specific position of the groove-type reinforcement in the sleeper block is specially designed; further research has found that ordinary sleeper blocks and The new and old concrete surfaces consolidated by the track bed are all flat surfaces. During the train operation, the sleeper block and the track bed form a horizontal and vertical complex relative force. After a few years on the surface of the track bed plate and around the sleeper block Diseases such as cracks may occur.
- the prior art focuses on the reinforcement and maintenance of the upper connection of the sleeper and ignores the internal diseases; and the embodiments of the present invention are used through theoretical analysis and actual testing, especially the groove is eccentrically set on the sleeper block
- the middle and lower part, especially the groove is eccentric to the middle and lower part of the depth of the sleeper block.
- the height of the prefabricated sleeper block is generally 160mm-180mm
- the depth of the sleeper block is generally about 150mm
- the center axis of the bottom groove is close to
- the bottom surface of the sleeper block is 30-50mm
- the diameter of the groove is 20-50mm.
- the findings and measures have not been reported in the prior art. After the train runs for a long time, it can effectively reduce the disease at the internal connection between the sleeper block and the track bed.
- the application prospect of the groove-type connection reinforcement structure between the sleeper block and the track bed of the embodiment of the present invention is wide.
- domestic CRTS type I double-block ballastless track, CRTS type II double-block ballastless track, Germany's Rheda2000 Type, Zublin type, slab track, and CRTS type I, CRTS type II, CRTS type III slab ballastless track all can use the groove type reinforced structure of the embodiment of the present invention; especially the double-block type In the ballast track, the connection between the sleeper block, the concrete-filled steel tube and the track bed is realized by the groove reinforcement, making the three become a close overall structure.
- the groove-type connection reinforcement structure between the sleeper block and the track bed through the structure of the groove in the substantially horizontal direction and the structure of the relationship between the grooves, multiple sets of different combinations are provided.
- Through-type, parallel-type, and space-type are respectively strengthened for different areas, and through the adjustment of the spacing, the gathering from the grooves on both sides of the lower part to the grooves in the middle of the upper part is realized, which balances the stress of each area; and has different Strength level, to achieve the adjustment of the strength of the structural connection, to obtain a comprehensive reinforcement effect of multi-level gradients, to adapt to the strength requirements of different regions, and at the same time to achieve balance in weight reduction and cost; at the same time, multiple sets of grooves as a whole, Still following the aforementioned depth eccentricity principle, the overall center eccentricity is set at the middle and lower part of the sleeper block, especially the middle and lower part of the depth of the sleeper block embedding.
- the resistance in multiple directions on the plane has constructed multiple sets of groove configuration schemes, each of which can be used alone or combined arbitrarily.
- the grooves with multiple directional forces and multiple components are partially or fully curvilinear, such as wavy, broken, threaded and other configurations.
- the contact length of the groove and the concrete is increased in the unit size sleeper block, which improves Tightening force, thereby improving the degree of bonding between the sleeper block and the concrete of the track bed.
- the horizontal plane groove is used to improve the force on the horizontal direction of the sleeper block and the track bed through the groove in the substantially vertical direction; the groove in the substantially horizontal direction It can be used alone or in combination with grooves in the general resin direction. When used in combination, it may or may not cross. And based on the aforementioned principle of depth eccentricity, in order to play the main role of the lower part of the substantially vertical groove, or to obtain resistance in multiple directions on the side wall plane, multiple sets of groove configuration schemes have been constructed, each of which can be used separately. Can also be combined arbitrarily.
- the grooves with multiple directional forces and multiple components are partially or fully curvilinear, such as wavy, broken, threaded and other configurations.
- the contact length of the groove and the concrete is increased in the unit size sleeper block, which improves Tightening force, thereby improving the degree of bonding between the sleeper block and the concrete of the track bed.
- FIG. 1 is a schematic diagram of a double-type sleeper in a groove-type connection reinforcing structure between a sleeper block and a track bed according to an embodiment of the present invention
- FIG. 2 is a side cross-sectional schematic view of a groove type connection reinforcing structure between a sleeper block and a track bed according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a plurality of sets of substantially horizontal parallel grooves in the groove-type connection reinforcing structure between the sleeper block and the track bed of the embodiment of the present invention
- FIG. 4 is a side cross-sectional schematic view of a plurality of sets of substantially horizontal parallel grooves in a groove-type connection reinforcing structure between a sleeper block and a track bed according to an embodiment of the present invention
- FIG. 5 is a schematic view of a substantially horizontal spaced groove in a groove-shaped connection reinforcement structure between a sleeper block and a track bed according to an embodiment of the present invention
- FIG. 6 is a first schematic diagram of a plurality of sets of substantially horizontal spaced grooves in the groove-shaped connection reinforcement structure between the sleeper block and the track bed of the embodiment of the present invention
- FIG. 7 is a second schematic diagram of a plurality of sets of substantially horizontal spaced-apart grooves in the groove-type connection reinforcement structure between the sleeper block and the track bed of the embodiment of the present invention.
- FIG. 8 is a schematic diagram of a plurality of sets of substantially vertical grooves in a groove-type connection reinforcing structure between a sleeper block and a track bed according to an embodiment of the present invention.
- the unit of the size mark is mm.
- An embodiment of the present invention provides a groove-shaped connection reinforcing structure between a sleeper block and a track bed, which is used to strengthen the connection between a prefabricated sleeper unit and a post-runner bed in a ballastless track.
- the prefabricated sleeper unit includes two or More sleeper block 1 and a connecting piece connecting the sleeper block 1 in the transverse direction of the track, the sleeper block 1 is made of concrete, the connecting piece is configured to be arranged in the manufacturing mold of the sleeper block 1, and the sleeper block The pouring process of 1 is integrated with the sleeper block 1; the connection reinforcing structure is provided between the sleeper block 1 and the track bed.
- the post-runner bed is the bed 10.
- a reinforcing member 3 is constructed on one or more side walls of the sleeper block 1 in the lateral direction, that is, in the longitudinal direction of the track, the reinforcing member 3 is inward from the side wall of the sleeper block 1 Concave grooves (as shown in FIG. 1), so that during the casting of the track bed 10, part of the sleeper block 1 and the groove are buried in the concrete of the track bed 10 and poured into one, And the concrete directly fills the groove to strengthen the connection between the sleeper block 1 and the track bed 10.
- a groove-shaped reinforcement member is constructed on any side wall and/or bottom surface around the sleeper block, for example, the cross-section is curved or arc-shaped , Polygons, irregular shapes and other grooves, during the on-site pouring of the track bed, the prefabricated sleeper blocks are buried in the concrete of the track bed, and the concrete of the track bed directly fills the groove (there is no other structure between the two), pouring As a whole, a locking effect is formed, which makes the sleeper block and the post-cast material tightly combined.
- the sleeper block and the post-cast material are combined with each other to firmly fix the sleeper at In the track bed, the sleeper block is not easy to loosen, and at the same time helps to reduce cracks between the sleeper and the track bed.
- the overall center of the groove-shaped reinforcement member 3 on the cross section of the sleeper block 1, that is, the longitudinal vertical section of the track, is biased at the center of the sleeper block 1 Set eccentrically in the direction below.
- the specific positions of the groove-type reinforcement in the sleeper block are specially designed; further research found that the ordinary sleeper block and the track bed are solid The new and old concrete surfaces are flat.
- the vertical and horizontal vertical and horizontal relative forces between the sleeper block and the track bed are formed. After a few years, they may appear on the surface of the track bed plate and around the sleeper block.
- the prior art focuses on the reinforcement and maintenance of the upper connection of the sleeper and ignores the internal disease; and the embodiments of the present invention are used through theoretical analysis and actual testing, especially the groove is eccentrically set at the middle and lower part of the sleeper block , Especially the groove is eccentric to the middle and lower of the depth of the sleeper block, for example, the height of the prefabricated sleeper block is generally 160mm-180mm, the depth of the sleeper block embedded in the track bed is generally about 150mm, the center axis of the bottom groove is close to the sleeper block The bottom surface is 30-50mm, the groove diameter is 20-50mm, the connection between the groove and the track bed is stronger at this position, and the locking effect is better.
- the findings and measures have not yet been reported in the prior art. After operation, it can effectively reduce the disease at the internal connection between the sleeper block and the track bed.
- the connecting piece is a plurality of concrete-filled steel tube 2 (as shown in FIG. 1 and omitted in FIG. 2), and the concrete-filled steel tube 2 is configured to be arranged on two sleeper blocks 1 adjacent to each other using hollow steel tubes
- the pouring of the sleeper block 1 is integrated with the sleeper block 1 at the same time, and the hollow steel tube is filled with concrete; buried in the track bed 10 during the pouring of the track bed 10 Therefore, the sleeper block 1, the concrete-filled steel tube 2, and the track bed 10 are cast together.
- a connection reinforcing structure is provided between the concrete-filled steel tube 2 and the sleeper block 1.
- the arrangement of the groove-type reinforcement should avoid the concrete-filled steel tube 2.
- the groove-type connection reinforcing structure between the sleeper block and the track bed of the embodiment of the present invention has wide application prospects, domestic CRTS type I double-block ballastless track, CRTS type II double-block ballastless track, German Rheda2000 type, Zublin type, slab track, and CRTS type I, CRTS type II, CRTS type III plate type ballastless track, can use the groove type reinforced structure of the embodiment of the present invention; in particular, double-pipe type ballastless track of concrete-filled steel tube sleeper type In the middle, through the groove reinforcement, the connection between the sleeper block, the concrete-filled steel tube and the track bed is realized, so that the three become a whole structure.
- the groove extends in the longitudinal direction of the sleeper block, that is, in the lateral direction of the track, and penetrates the lateral sidewall; in one embodiment, as shown in FIGS. 3-4, the same lateral sidewall It includes a plurality of through grooves arranged in parallel up and down.
- the lateral side walls refer to the side walls on opposite sides of the sleeper block along the longitudinal direction of the track, that is, the left and right side walls as shown in FIG. 4.
- the groove extends in the longitudinal direction of the sleeper block, that is, in the lateral direction of the track, and the same lateral side wall includes a plurality of the grooves, in the longitudinal direction of the sleeper block 1 , Sequentially spaced; in one embodiment, as shown in FIGS. 6-7, the same lateral side wall includes multiple sets of the spaced-apart grooves, each group is arranged in parallel up and down, and the multiple groups of up and down parallel spaces From the bottom to the top, the spacing between the grooves in each group gradually decreases.
- the lateral side walls refer to the side walls on opposite sides of the sleeper block along the longitudinal direction of the track, that is, the left and right side walls as shown in FIG. 4.
- the groove-type connection reinforcing structure between the sleeper block and the track bed of the embodiment of the present invention through the structure of the groove in the substantially horizontal direction and the structure of the relationship between the grooves, a plurality of sets of different combination schemes are provided.
- Parallel type and interval type respectively strengthened for different areas, and through the adjustment of the spacing, the gathering from the grooves on both sides of the lower part to the grooves in the middle of the upper part is achieved, which balances the force of each area; and has different strength levels .
- the overall center eccentricity is set at the middle and lower part of the sleeper block, especially the middle and lower part of the embedding depth of the sleeper block.
- the cross-sectional size of the groove provided on the cross-section of the sleeper block 1 of the groove provided above and below increases in sequence from the bottom to the top; or, the groove extends from the middle of the track to the outside
- the height of the groove in the cross section of the cross section of the sleeper block 1 gradually increases; or, when the groove extends from the lateral middle of the track to the lateral outer direction, the groove
- the depth of the groove on the cross-section of the sleeper block 1 gradually decreases; or, when the groove extends from the lateral middle of the track to the laterally outer direction, the groove on the cross-section of the sleeper block 1
- the depth of the groove fluctuates repeatedly from large to small to large, so that the bottom surface of the groove is wavy.
- the projection on the vertical plane of the track also has a vertical height component.
- the groove-type connection reinforcement structure between the sleeper block and the track bed according to the embodiment of the present invention, based on the aforementioned principle of depth eccentricity, in order to play the main role of the groove with a larger depth in the groove in the substantially horizontal direction, or to obtain the side wall plane With the resistance in multiple directions, multiple sets of groove configuration schemes have been constructed, and each scheme can be used alone or combined arbitrarily.
- the grooves with multiple directional forces and multiple components are partially or fully curvilinear, such as wavy, broken, threaded and other configurations.
- the contact length of the groove and the concrete is increased in the unit size sleeper block, which improves Tightening force, thereby improving the degree of bonding between the sleeper block and the concrete of the track bed.
- it further includes such a groove, which extends in the vertical direction on the side wall of the sleeper block; in one embodiment, the lower end of the groove penetrates the bottom surface of the sleeper block.
- the groove extending in the up-down direction gradually increases in depth from the top to the bottom of the cross section of the sleeper block 1; or, the groove extending in the up-down direction, From top to bottom, the groove depth of the groove on the cross section of the sleeper block 1 repeatedly fluctuates from large to small to large, so that the bottom surface of the groove is wavy; or, the groove
- the projection on the horizontal plane also has a horizontal length component of the transverse direction of the track; or, the plurality of grooves extending in the up and down direction are sequentially spaced in the transverse direction of the track Set, and from the middle of the track to the lateral outer side, the length of the grooves extending in the up-down direction, that is, the vertical height is sequentially reduced; or, the grooves extending in the up-down direction are in the lateral direction of the track
- the tops are arranged at intervals in sequence, and the lengths of the plurality of grooves extending in
- the horizontal plane groove is used to improve the force on the horizontal direction of the sleeper block and the track bed;
- the grooves in the resin direction can be used alone or in combination. When used in combination, the grooves may or may not be crossed. And based on the aforementioned principle of depth eccentricity, in order to play the main role of the lower part of the substantially vertical groove, or to obtain resistance in multiple directions on the side wall plane, multiple sets of groove configuration schemes have been constructed, each of which can be used separately. Can also be combined arbitrarily.
- the grooves with multiple directional forces and multiple components are partially or fully curvilinear, such as wavy, broken, threaded and other configurations.
- the contact length of the groove and the concrete is increased in the unit size sleeper block, which improves Tightening force, thereby improving the degree of bonding between the sleeper block and the concrete of the track bed.
- the embodiment of the present invention also provides the construction method of the groove-type connection reinforcing structure between the sleeper block and the track bed as described above, including the following steps:
- Two molds of predetermined specifications are processed, for example, a steel mold with a length of 650 mm, a width of 300 mm, and a height of 150 mm. On the inner side of the mold, a height of 30-50 mm from the bottom is detachably installed.
- a groove on the side wall of the sleeper block is formed, for example, a semi-cylinder with a length of 600mm and a radius of 20mm corresponds to an arc-shaped groove; insert the two ends of multiple hollow steel pipes into the two molds;
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Abstract
Description
Claims (15)
- 一种轨枕块与道床之间的凹槽型连接加强结构,用于加强无砟轨道中的预制轨枕单元与道床之间的连接,所述预制轨枕单元包括两个或更多轨枕块和轨道横向方向连接所述轨枕块的连接件,所述轨枕块由混凝土浇筑而成,所述连接件构造为布置于轨枕块的制造模具内,在所述轨枕块的浇筑过程中与所述轨枕块浇筑为一体,在轨道纵向方向的一个或多个侧壁上构造有加强件,所述加强件为从所述轨枕块的侧壁向内凹陷的凹槽,从而在所述道床的浇筑过程中,部分高度的所述轨枕块以及所述凹槽埋入所述道床的混凝土中、浇筑为一体,且混凝土直接填满所述凹槽,以加强轨枕块与道床之间的连接。
- 如权利要求1所述的轨枕块与道床之间的凹槽型连接加强结构,凹槽型的所述加强件在轨道纵向竖直截面上的整体中心偏向于下方的方向上偏心设置。
- 如权利要求1所述的轨枕块与道床之间的凹槽型连接加强结构,所述连接件为多根钢管混凝土,所述钢管混凝土构造为利用空心钢管布置于彼此相邻的两个轨枕块的制造模具内,在所述轨枕块的浇筑过程中与所述轨枕块浇筑为一体,同时所述空心钢管内灌满混凝土;在所述道床浇筑的过程中埋入所述道床,从而轨枕块、钢管混凝土、道床浇筑为一体。
- 如权利要求3所述的轨枕块与道床之间的凹槽型连接加强结构,所述凹槽沿轨道的横向方向延伸,贯通横向侧壁。
- 如权利要求4所述的轨枕块与道床之间的凹槽型连接加强结构,同一个横向侧壁包括多个贯通的所述凹槽,呈上下平行排列。
- 如权利要求3所述的轨枕块与道床之间的凹槽型连接加强结构,所述凹槽沿轨道的横向方向延伸,同一个横向侧壁包括多个所述凹槽, 在所述轨枕块的纵向方向上,依次间隔设置。
- 如权利要求6所述的轨枕块与道床之间的凹槽型连接加强结构,同一个横向侧壁包括多组间隔设置的所述凹槽,每组之间呈上下平行排列,且上下平行的多组间隔设置的所述凹槽,从下到上,每组中凹槽之间的间距逐渐减小。
- 如权利要求4-7任一项所述的轨枕块与道床之间的凹槽型连接加强结构,上下设置的所述凹槽在所述轨枕块的横截面上的凹槽截面大小,从上到下,依次增大;或者,所述凹槽从轨道横向中部向横向外侧方向延伸时,所述凹槽在所述轨枕块的横截面上的凹槽截面的中心高度逐渐升高;或者,所述凹槽从轨道横向中部向横向外侧方向延伸时,所述凹槽在所述轨枕块的横截面上的凹槽深度逐渐减小;或者,所述凹槽从轨道横向中部向横向外侧方向延伸时,所述凹槽在所述轨枕块的横截面上的凹槽深度,在变大-变小-变大的反复波动,从而所述凹槽的底面呈波浪形。
- 如权利要求4-7任一项所述的轨枕块与道床之间的凹槽型连接加强结构,所述凹槽除了在水平面上的投影具有水面长度分量之外,在轨道纵向竖直面上的投影还具有竖直高度分量。
- 如权利要求4-7任一项所述的轨枕块与道床之间的凹槽型连接加强结构,还包括这样的凹槽,在轨枕块的侧壁上沿上下方向延伸。
- 如权利要求10所述的轨枕块与道床之间的凹槽型连接加强结构,凹槽的下端贯穿轨枕块的底面。
- 如权利要求10所述的轨枕块与道床之间的凹槽型连接加强结构,上下方向延伸的所述凹槽,从上到下,凹槽在所述轨枕块的横截面上的凹槽深度逐渐增大;或者,上下方向延伸的所述凹槽,从上到下,凹槽在所述轨枕块的横截面上的凹槽深度,在变大-变小-变大的反复波动,从而凹槽的底面呈波浪形;或者,所述凹槽除了在轨道横截面上的投影具有竖直高度分量之外,在水平面上的投影还具有轨道横向的水平长度分量;或者,多个上下方向延伸的所述凹槽在轨道的横向方向上依次间隔设置,且从轨道横向中部向横向外侧方向上,多个上下方向延伸的所述凹槽的长度依次减小;或者,多个上下方向延伸的所述凹槽在轨道的横向方向上依次间隔设置,多个上下方向延伸的所述凹槽的长度,在变大-变小-变大的反复错动。
- 如权利要求4-7所述的轨枕块与道床之间的凹槽型连接加强结构,轨枕块埋入道床里的深度为150mm;最下方的凹槽的中心轴线靠近轨枕块的底面30-50mm,凹槽直径为20-50mm。
- 一种轨枕块与道床之间的凹槽型连接加强结构,用于加强无砟轨道中的预制轨枕单元与道床之间的连接,所述预制轨枕单元包括两个或更多轨枕块和轨道横向方向连接所述轨枕块的连接件,所述轨枕块由混凝土浇筑而成,所述连接件与所述轨枕块浇筑为一体,在轨道纵向方向的一个或多个侧壁上构造有加强件,所述加强件为从所述轨枕块的侧壁向内凹陷的凹槽,从而在所述道床的浇筑过程中,部分高度的所述轨枕块以及所述凹槽埋入所述道床的混凝土中、浇筑为一体,且混凝土直接填满所述凹槽,以加强轨枕块与道床之间的连接。
- 如权利要求3-14任一项所述的轨枕块与道床之间的凹槽型连接加强结构的施工方法,包括如下步骤:S1、制作预定规格的多根空心钢管,以备后续制作钢管混凝土;S2、加工预定规格的模具两个,并在模具的内侧面距离底部30-50mm高度位置,可拆卸的安装预定规格的突出件,用以浇筑混凝土后形成轨枕块侧壁上的凹槽;并将多根空心钢管的两端分别插入到两个模具中;S3、浇筑混凝土,使得所述空心钢管内灌满混凝土,形成钢管混凝土,所述突出件的周围填满混凝土,并振捣密实;S4、连同模模具一起进行轨枕的养护;S5、拆卸所述突出件,松开与模具侧面的连接,所述突出件与成型的轨枕一起脱模,分离所述突出件与成型的轨枕,获得具有凹槽的预制轨枕单元;S6、搬运预制轨枕单元至轨道施工现场,浇筑所述道床的混凝土,混凝土直接填满所述凹槽,且所述轨枕块、钢管混凝土达到设计埋深,从而将轨枕块、钢管混凝土、道床浇筑为一体。
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CN109457550A (zh) * | 2018-12-18 | 2019-03-12 | 中铁第四勘察设计院集团有限公司 | 一种轨枕块与道床之间的凹槽型连接加强结构及施工方法 |
CN109898371A (zh) * | 2019-04-11 | 2019-06-18 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | 轨枕、轨枕工装及轨枕制作方法 |
CN111455739A (zh) * | 2020-04-11 | 2020-07-28 | 中铁二院工程集团有限责任公司 | 一种组合式轨枕 |
CN112609516B (zh) * | 2021-01-14 | 2022-09-09 | 中铁十七局集团有限公司 | 一种侧面带凹槽的钢管混凝土轨枕的制造方法 |
CN113584954A (zh) * | 2021-04-27 | 2021-11-02 | 北京九州一轨环境科技股份有限公司 | 一种用于轨道基底的预制拼装周期结构及其施工方法 |
CN114232391A (zh) * | 2021-12-14 | 2022-03-25 | 中铁第四勘察设计院集团有限公司 | 一种cft枕式无砟轨道及其施工方法 |
CN114232392B (zh) * | 2021-12-14 | 2023-07-18 | 中铁第四勘察设计院集团有限公司 | 一种适用于无砟轨道的钢管混凝土轨枕、施工工装及方法 |
CN114395943A (zh) * | 2021-12-14 | 2022-04-26 | 中铁第四勘察设计院集团有限公司 | 一种适用于无砟轨道的轨枕结构 |
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