Frame rail skeleton for use in double-block ballastless rail bed construction and manufacturing method
A ballastless track, double-block technology, applied in the direction of track, track laying, track maintenance, etc., can solve the problems of unfavorable ballast track precision control, heavy turnover parts, difficult to bend, etc., to achieve good promotion and application value, installation Easy maintenance, easy disassembly and relocation
Active Publication Date: 2014-04-02
中铁五局集团第六工程有限责任公司
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Problems solved by technology
There are three disadvantages of the single-girder frame rail row: first, the turnover parts of the whole set of rail row are heavy, and it is inconvenient to transport on site; second, it is heavy, easy to deform, and has low stability; Unfavorable precision control
The length of the double-beam frame rail row is between 6.0m and 7.0m. The rail row is formed by using the combination of two beams and the beam connection system in each group to form the rail row. It is inconvenient to be unlucky; second, it is heavy and expensive; third, it has high rigidity, and it is not easy to bend it when used on a curve; fourth, there are many adjacent rail row joints, which is not good for the precision control of ballast bed track
Method used
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[0014] Such as figure 1 , figure 2 , image 3 As shown, the frame rail row used in the construction of the double-block ballastless track bed of the present invention includes a double beam frame 1 and a single beam frame 4, and the double beam frame 1 is composed of 2 beams 1-1 and 1 longitudinal connecting beam 1-2 It is connected into an H-shape, in which rail installation grooves are reserved at both ends of the beam 1-1, and the frame is formed by connecting the fishtail splint 1-3 and high-strength bolts to the rail 2; the single-beam frame 4 has a beam 1-1 and a beam 1 -1 Two rail installation grooves are reserved at both ends, and the frame is connected to the rail 2 through fishtail splints 1-3 and high-strength bolts; the rail bottom slope of the rail 2 is 1:40; the screw regulator 3 is connected to the vacancy of the rail 2 .
[0015] The beam 1-1 and the longitudinal connection beam 1-2 are made of 18cm high channel steel.
[0016] Rail 2 is 12.345m long 60kg / ...
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The invention discloses a frame rail skeleton for use in double-block ballastless rail bed construction. The frame rail skeleton comprises a double-beam frame (1) and a single-beam frame (4), wherein the double-beam frame (1) has an H-shaped structure formed by connecting two transverse beams (1-1) and one longitudinal connecting beam (1-2); steel rail installing grooves are reserved in the two ends of the transverse beam (1-1) respectively, and are connected with steel rails (2) through fish plates (1-3) and high-strength bolts into a frame; the single-beam frame (4) is provided with one transverse beam (1-1); steel rail installing grooves are reserved in the two ends of the transverse beam (1-1) respectively, and are connected with the steel rails (2) through fish plates (1-3) and high-strength bolts into a frame; the rail cant of each steel rail (2) is 1:40; screw rod regulators (3) are connected to void spaces of the steel rails (3). Linear, curved vertical and transverse regulating functions can be provided via screw drive, and the rail gauge and smoothness of the rails can be ensured after the formation of a rail skeleton frame.
Description
technical field [0001] The invention relates to a frame rail row and a manufacturing method used in double-block ballastless track construction, which belong to the construction of double-block ballastless track bed of Chinese high-speed railway CRTS-I. Background technique [0002] The current double-block ballastless track bed is generally constructed by changing the pavement method, and the frame rails used generally include single-beam frame rails and double-beam frame rails. Both frame rails have different disadvantages. The length of the single-beam frame rail row is between 6.0m and 7.0m, and each group of single beams is used to connect the rails to form a rail row. There are three disadvantages of the single-girder frame rail row: first, the turnover parts of the whole set of rail row are heavy, and it is inconvenient to transport on site; second, it is heavy, easy to deform, and has low stability; Accuracy control is disadvantageous. The length of the double-beam...
Claims
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Inventor周涛尹忠文刘智军刘映剑梁水泉张俊杰李勇陈佳李志祥周毅
Owner中铁五局集团第六工程有限责任公司