Prestressed concrete railway board
Technical field
The utility model relates to the high speed railway track technical field, relates to a kind of double prestressed concrete track plate that is applicable to the high speed rail non-slag track specifically.
Background technology
At present, China railways generally adopts ballasted track, and ballasted track is lax gradually by railway roadbed repeatedly because of train, smooth-going degree variation, and maintenance activity is big, and needed workload of maintenance and time obstruction railway speed increase development.The domestic track structure that also has the examination shop to be close to no circuit maintenance activity, but because of the operating expenses height, speed of application is slow, and substructure is in case reasons such as distortion trimming difficulty also only limit to some special locations.
Ballasted track because of train repeatedly by making railway roadbed lax gradually, it is smooth-going to cause walking rails to lose, the line maintenance operation is many, along with railway speed increase, maintenance activity increases and shorten maintenance time at interval, and maintenance difficulty strengthens, so ballasted track is not suitable for the requirement of high-speed railway.Ballastless track provides a kind of intimate no circuit maintenance activity, has the track structure of high ride, high-durability, high reliability; At the communicating requirement of high-speed railway, under various weather conditions, the rail impedance on the track structure requires enough big.
It is the plate-type slag-free orbit of target that Central Japan Railway begins one's study with few maintenance from nineteen sixty-five, through the examination shop, several places on the rapid transit railway of national the Shinkansen, 1970 in the adret the Shinkansen first a large amount of constructions achieve success.Under study for action as plate-type slag-free orbit key technology---shock-absorbing type and multiple type track plate, elastic adjusting layer material (CA mortar) are used widely.Through the experimental studies in more than 30 years and examination shop, Central Japan Railway has accumulated rich practice experience, in recent years again according to its different service condition, as: warm area, cold district, coastline, vibration damping section, field patch etc., develop various CA mortar prescription and packing material, and corresponding method for testing performance, construction technology etc. have been proposed, use in the all-round popularization of Japanese the Shinkansen for the slab track structure and laid solid technical foundation.
Technology contents
Goal of the invention of the present utility model is intended to overcome above-mentioned prior art defective, a kind of existing ballastless track that is different from is provided, and rail impedance can satisfy the prestressed concrete railway board that the train speed per hour is the ballastless track of 350km/h line traffic under the rainstorm weather situation.
Goal of the invention of the present utility model is achieved by the following technical programs: prestressed concrete railway board, be cuboid, inside is provided with reinforcing bar, this prestressed concrete railway board is in length and the two-way posttension of width, length direction has two semicircle breach, also be provided with insulating trip and lifting nut on this track plate, insulating trip and lifting nut and track plate are connected, double prestressed concrete track plate plate face is provided with the mortar injection hole of at least one run-through board face, around the track plate, also be respectively arranged with vertical diplopore anchor plate and horizontal single hole anchor plate, the longitudinal reinforcement two ends link to each other with vertical diplopore anchor plate, and the transverse reinforcement two ends link to each other with horizontal single hole anchor plate.
The plate face of this prestressed concrete railway board is provided with the parallel boss of two row.
The distance of central point is a standard gauge between the parallel corresponding every pair of boss of described two row.
On the lifting nut, be connected with hanging hook.
The rebar surface that is connected with single, double hole anchor plate that is arranged in the prestressed concrete railway board has insulating layer, and this insulating layer closely wraps up reinforcing bar.
The insulating layer on the surface of described longitudinal reinforcement is an ambroin.
The mortar injection hole number is a plurality of, lays respectively at prestressed concrete railway board length direction center line both sides.
The mortar injection hole number is a plurality of, lays respectively on the prestressed concrete railway board length direction center line.
Described ambroin conduit pre-buried position on prestressed concrete railway board is arranged on every one steel rail both sides, and evenly distributes.
Ambroin conduit top seal.
The utility model compared with prior art has following positive effect: this prestressed concrete railway board is applicable to that speed per hour is the 350km/h high-speed line, have high ride, high-durability, high reliability characteristics, so this structure can satisfy the each side technical requirements of China railways speed-raising, particularly the insulation processing of this track intralamellar part reinforcing bar avoids the track intralamellar part to form circuit loop, the track plate insulation performance is good, can satisfy high-speed railway and adopt the rail communicating requirement, generally speaking, science, reasonable, economic, practical has the very high use value of applying; This prestressed concrete railway board has directive function for China railways reaches the international railway advanced level.
Description of drawings
Fig. 1: structural representation of the present utility model;
Fig. 2: inner bar construction schematic diagram of the present utility model;
Fig. 3: structural representation of the present utility model;
Fig. 4: lateral view of the present utility model;
Among the figure, label 1 semicircle breach, 2 insulating trips, 3 lifting nuts, 4 mortar injection holes, 5 vertical diplopore anchor plates, 6 horizontal single hole anchor plates, 7 boss, 8 hanging hooks, 9 reinforcing bars.
The specific embodiment
Embodiment 1: prestressed concrete railway board, be cuboid, this prestressed concrete railway board is in the two-way posttension of length direction, form two semicircle breach 1, also be provided with ambroin conduit 2 and lifting nut 3 on this track plate, insulating trip 2 is ambroin conduits of top seal, ambroin conduit 2 and lifting nut 3 are connected with the track plate, on lifting nut 3, be connected with hanging hook 8, double prestressed concrete track plate plate face is provided with the CA mortar injection hole 4 of 4 run-through board faces, around the track plate, also be respectively arranged with vertical diplopore anchor plate 5 and horizontal single hole anchor plate 6, longitudinal reinforcement 9 two ends link to each other with vertical diplopore anchor plate 5, and transverse reinforcement 9 two ends link to each other with horizontal single hole anchor plate 6; There is insulating layer on reinforcing bar 9 surfaces that are connected with single, double hole anchor plate 5,6 that are arranged in the prestressed concrete railway board, insulating layer is an ambroin, this insulating layer closely wraps up reinforcing bar 9, the plate face of this prestressed concrete railway board is provided with the parallel boss 7 of two row, and the distance of central point is a standard gauge between the parallel and corresponding every pair of boss 7 of described two row.