阅读说明：本技术 一种无砟轨道板端减震卡槽装置 (Ballastless track plate end damping clamping groove device ) 是由 胡连军 徐浩 熊维 蔡文锋 杨文茂 林红松 曹保 张威风 罗圆 余浩伟 鄢红英 于 2021-09-02 设计创作，主要内容包括：一种无砟轨道板端减震卡槽装置,以有效抵抗来自地震作用下的荷载,降低地震波对轨道结构的破坏。包括在底座基础上沿线路方向间隔设置的无砟轨道板,所述无砟轨道板的纵向端面上固定设置预制卡榫,预制卡榫嵌入卡槽构件内腔,该卡槽构件内腔腔壁与预制卡榫相对的表面之间设置弹性体。在两侧卡槽构件之间沿横向间隔设置连接构件,各连接构件与两侧卡槽构件、底座基础形成固定连接,在连接构件与卡槽构件、底座基础的连接面上设置弹性垫板。(A ballastless track plate end damping clamping groove device is used for effectively resisting loads from earthquake action and reducing damage of earthquake waves to a track structure. The ballastless track slab comprises ballastless track slabs which are arranged on a base at intervals along the line direction, prefabricated clamping tenons are fixedly arranged on the longitudinal end faces of the ballastless track slabs, the prefabricated clamping tenons are embedded into an inner cavity of a slot component, and an elastic body is arranged between the wall of the inner cavity of the slot component and the surface of the prefabricated clamping tenons, which is opposite to the wall of the inner cavity of the slot component. Connecting members are arranged between the clamping groove members on the two sides at intervals along the transverse direction, each connecting member is fixedly connected with the clamping groove members on the two sides and the base foundation, and elastic cushion plates are arranged on the connecting surfaces of the connecting members, the clamping groove members and the base foundation.)

1. The utility model provides a ballastless track board end shock attenuation draw-in groove device, includes ballastless track board (20) that line direction interval set up on base basis (10), characterized by: the longitudinal end face of the ballastless track slab (20) is fixedly provided with a prefabricated tenon (21), the prefabricated tenon (21) is embedded into the inner cavity of the slot component (30), and an elastic body (31) is arranged between the wall of the inner cavity of the slot component (30) and the surface opposite to the prefabricated tenon (21); connecting members (40) are arranged between the clamping groove members (30) on the two sides at intervals along the transverse direction, each connecting member (40) is fixedly connected with the clamping groove members (30) on the two sides and the base foundation (10), and elastic cushion plates (41) are arranged on the connecting surfaces of the connecting members (40), the clamping groove members (30) and the base foundation (10).

2. The ballastless track plate end damping clamping groove device of claim 1, which is characterized in that: the prefabricated clamping tenon (21) is a rectangular body and is fixedly installed on the longitudinal end face of the ballastless track plate (20) through embedded bolts (11) which are transversely arranged at the longitudinal end of the ballastless track plate (20) at intervals.

3. The ballastless track plate end damping clamping groove device of claim 2, which is characterized in that: the shape of the inner cavity of the clamping groove component (30) is matched with the outer contour of the prefabricated clamping tenon (21), elastic bodies (31) are arranged on the longitudinal cavity wall and the two vertical cavity walls at intervals, and the elastic bodies (31) are arranged on the two transverse cavity walls.

4. The ballastless track plate end damping clamping groove device of claim 1, which is characterized in that: the connecting member (40) is composed of a side plate (42), a bottom plate (43) and a T-shaped support column (44), wherein the side plate (42) is fixedly arranged at two ends of the upper transverse wall of the T-shaped support column (44), and the bottom plate (43) is fixedly arranged at the lower end of the lower upright column of the T-shaped support column (44).

5. The ballastless track plate end damping clamping groove device of claim 4, which is characterized in that: the clamping groove component (30) and the connecting component (40) are fixedly connected through a connecting bolt (45) penetrating through the side plate (42) and the longitudinal side wall of the clamping groove component (30), and an elastic cushion plate (41) is arranged between the side plate (42) and the longitudinal side wall.

6. The ballastless track plate end damping clamping groove device of claim 4, which is characterized in that: the base foundation (10) is provided with embedded bolts (11) at intervals in the transverse direction, the embedded bolts (11) penetrate through the bottom plate (43) to fixedly install the connecting component (40) on the base foundation (10), and an elastic cushion plate (41) is arranged between the bottom surface of the bottom plate (43) and the top surface of the base foundation (10).

Technical Field

The invention relates to the technical field of rail transit, in particular to a ballastless track plate end damping clamping groove device.

Background

The track structure directly bears the load from the train and transmits the load to the foundation under the line, such as a roadbed, a bridge, a tunnel and the like. The track structure must be strong and stable with the correct geometric configuration to ensure the safe operation of the train.

In areas with frequent earthquake disasters, the safe operation of trains can be directly threatened due to the damage of track structures caused by earthquakes, such as track plate cracking, steel rail distortion and the like. The bridge deforms greatly under the action of earthquake, so that the damage of a ballastless track structure on the bridge is prominent.

In the prior art patent documents, there are many anti-seismic track structures to resist the vibration load from the train or to reduce the vibration under the action of vehicle-track coupled power. The method aims at the vibration from the lower foundation under the action of the earthquake, the damage of earthquake waves to the track structure is rarely reported, and the anti-seismic design measure is not considered in the structural design of the ballastless track in China at present.

The bridge structure is designed in an earthquake-proof manner according to three levels of 'small earthquake is not damaged, medium earthquake can be repaired, and large earthquake is not fallen', so that the research on the structure of the earthquake-proof ballastless track under the action of the earthquake is carried out to be suitable for the bridge structure, and the method has important significance.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a ballastless track plate end damping clamping groove device to effectively resist the load from the earthquake action and reduce the damage of earthquake waves to the track structure.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention discloses a ballastless track plate end damping clamping groove device, which comprises ballastless track plates arranged at intervals along a line direction on a base, and is characterized in that: the longitudinal end face of the ballastless track slab is fixedly provided with a prefabricated clamping tenon, the prefabricated clamping tenon is embedded into an inner cavity of a slot component, and an elastomer is arranged between the wall of the inner cavity of the slot component and the surface opposite to the prefabricated clamping tenon; connecting members are arranged between the clamping groove members on the two sides at intervals along the transverse direction, each connecting member is fixedly connected with the clamping groove members on the two sides and the base foundation, and elastic cushion plates are arranged on the connecting surfaces of the connecting members, the clamping groove members and the base foundation.

The prefabricated clamping tenon is a rectangular body and is fixedly installed on the longitudinal end face of the ballastless track plate through embedded bolts which are transversely arranged at the longitudinal end of the ballastless track plate at intervals in an embedded mode.

The shape of the inner cavity of the clamping groove component is matched with the outline of the prefabricated clamping tenon, elastomers are arranged on the longitudinal cavity wall and the two vertical cavity walls at intervals, and elastomers are arranged on the two transverse cavity walls.

The beneficial effects of the invention are mainly reflected in the following aspects:

the method comprises the steps that a clamping tenon is prefabricated at the longitudinal end of a ballastless track plate and is embedded into an inner cavity of a clamping groove member, an elastic body is arranged between the surface of the inner cavity wall of the clamping groove member, which is opposite to the prefabricated clamping tenon, and an elastic base plate is arranged between a connecting member and the clamping groove member as well as between the connecting member and a base foundation, so that seismic waves transmitted from each direction of vertical, transverse and longitudinal directions can be effectively resisted while the longitudinal, transverse and vertical adjustment of the ballastless track plate is realized, the track structure under the action of an earthquake is protected from being damaged extremely small, and 'small-earthquake damage, medium-earthquake repairable and large-earthquake' can be realized;

the prefabricated clamping tenon and the connecting component are installed and fixed only by arranging the embedded bolts on the basis of the longitudinal end part and the base of the ballastless track slab, and the connecting components arranged at the transverse intervals are connected with the clamping groove components on the two sides, so that the adjacent ballastless track slabs are longitudinally connected, longitudinal extension under the action of temperature force and seismic force can be realized, and the construction, installation and later maintenance are convenient.

Drawings

The specification includes the following five figures:

FIG. 1 is a schematic structural diagram of a ballastless track plate-end damping clamping groove device of the invention;

FIG. 2 is a schematic structural diagram of a ballastless track plate in the ballastless track plate end damping clamping groove device of the invention;

FIG. 3 is a schematic diagram of a connection mode of two side slot members in a ballastless track plate end damping slot device according to the present invention;

FIG. 4 is a schematic structural diagram of a connecting member in a ballastless track plate-end damping slot device according to the present invention;

fig. 5 is a schematic diagram of a connection mode of a connection member, a slot member and a base foundation in the ballastless track plate end damping slot device.

The figures show the components and corresponding references: the steel rail fastening device comprises a base foundation 10, embedded bolts 11, ballastless track slabs 20, prefabricated tenons 21, clamping groove members 30, elastic bodies 31, connecting members 40, elastic base plates 41, side plates 42, a bottom plate 43, T-shaped pillars 44, connecting bolts 45 and steel rails 50.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1, 2 and 3, the ballastless track slab end damping slot device comprises ballastless track slabs 20 arranged on a base 10 at intervals along a line direction, prefabricated tenons 21 are fixedly arranged on longitudinal end faces of the ballastless track slabs 20, the prefabricated tenons 21 are embedded into an inner cavity of a slot member 30, and an elastic body 31 is arranged between the wall of the inner cavity of the slot member 30 and the surface of the prefabricated tenons 21 opposite to each other. The connecting members 40 are arranged between the slot members 30 on the two sides at intervals along the transverse direction, each connecting member 40 is fixedly connected with the slot members 30 on the two sides and the base foundation 10, and the elastic cushion plates 41 are arranged on the connecting surfaces of the connecting members 40, the slot members 30 and the base foundation 10. The ballastless track slab can effectively resist seismic waves transmitted from vertical, transverse and vertical directions while realizing longitudinal, transverse and vertical adjustment of the ballastless track slab, protect the track structure under the action of an earthquake from being damaged extremely little, and realize 'small earthquake is not damaged, middle earthquake can be repaired, and large earthquake is not fallen'.

Referring to fig. 5, only the longitudinal end of the ballastless track slab 20 and the base foundation 10 need to be provided with the embedded bolts 45, the prefabricated clamping tenons 21 and the connecting members 30 are installed and fixed, and the connecting members 40 arranged at transverse intervals are connected with the clamping groove members 30 on two sides, so that the adjacent ballastless track slabs 20 are longitudinally connected, longitudinal extension under the action of temperature force and seismic force can be realized, and the construction, installation and later maintenance are convenient.

Referring to fig. 2, the prefabricated tenon 21 is a rectangular body, and is fixedly installed on the longitudinal end surface of the ballastless track plate 20 by the embedded bolts 11 which are embedded at the longitudinal end of the ballastless track plate 20 at transverse intervals. The prefabricated tenons 21 are typically prefabricated from reinforced concrete or other types of rigid members.

Referring to fig. 3, the shape of the inner cavity of the slot member 30 is adapted to the outer contour of the prefabricated tenon 21, the longitudinal cavity wall and the two vertical cavity walls are provided with elastic bodies 31 at intervals, and the two horizontal cavity walls are provided with elastic bodies 31. The elastic body 31 is generally an elastic pad and is adhered to the inner cavity wall of the slot member 30. Elastic filler can be filled in the space between the prefabricated clamping tenon 21 and the inner cavity of the clamping groove member 30.

Referring to fig. 4, the connecting member 40 is composed of a side plate 42, a bottom plate 43 and a T-shaped support 44, wherein the side plate 42 is fixedly provided at both ends of an upper lateral wall of the T-shaped support 44, and the bottom plate 43 is fixedly provided at a lower end of a lower column of the T-shaped support 44. Referring to fig. 3, the slot member 30 and the connecting member 40 are fixedly connected by a connecting bolt 45 passing through the side plate 42 and the longitudinal side wall of the slot member 30, and an elastic pad 41 is disposed between the side plate 42 and the longitudinal side wall. Referring to fig. 5, the base foundation 10 is transversely provided with embedded bolts 11 at intervals, the embedded bolts 11 penetrate through the bottom plate 43 to fixedly mount the connecting member 40 on the base foundation 10, and an elastic backing plate 41 is arranged between the bottom surface of the bottom plate 43 and the top surface of the base foundation 10.

The above description is only used for illustrating some principles of the ballastless track slab end damping slot device of the present invention, and the present invention is not limited to the specific structure and the application range shown and described, so all the corresponding modifications and equivalents that may be utilized belong to the claims of the present invention.