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    Sleepers are also known as sleepers, and are also a type of railway accessories

    The sleeper is also called the sleepers, but also parts of a railway

    It's just that the material used is not just wood, so it is more scientific to call sleepers. Don't look at the monotonous appearance of the sleeper, the appearance is not amazing, and its role is not small. The sleeper must support the rail and maintain the position of the rail, and it must also transmit the huge pressure transmitted from the rail to the track bed. It must have flexibility and elasticity, not hard, not soft. When the train passes, it can be deformed appropriately to cushion the pressure, but after the train has passed it has to be restored as much as possible.

    Only now, not just the materials used in wood, so called sleeper more scientific. Don't look like uniform monotone sleeper, appearance is not breathtaking, its role can not small. Necessary to support rail sleepers, but also to maintain the rail position , but also to pass the rail pressure before being passed to the ballast. It must have a certain flexibility and elasticity, hard not soft line. After the train, it can be deformed due to buffer the pressure, but after the train had as much as possible restitution.

    Concrete sleeper is also called concrete sleeper

    Concrete sleeper is also called the concrete pillow,
    also known as the concrete sleeper

    Made of concrete and steel, with a rigid appearance and long service life

    Made of concrete, steel, combination, hard appearance, long service life

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    Product classification

    Cement sleepers can be divided into U-ring type and bolt plate type according to the installation method

    Concrete sleepers are in accordance with the installation can be divided into U type ring type and plate type bolt

    The concrete sleeper U-ring sleeper is easy to install. Just place the steel rail between the two U-rings, put a rubber pad on the bottom, and then hit the U-ring with a sledgehammer to hold the rail. The cement sleeper bolt press plate uses T-bolts to pass through the reserved holes below the sleeper to fix the pressure plate to hold the rail. One sleeper requires 4 sets of bolts, 4 pressure plates, and 2 rubber pads. This sleeper is easy to maintain Can be reused.

    The cement sleeper sleeper U type ring has the advantages of convenient installation, only the rail put between the two U ring, the following mat rubber pad, and then use a sledgehammer smashing U type ring down rail. The cement sleeper bolt plate is used in T type bolt from the sleeper reserved under the hole above fixed platen presses the rail, a sleeper needs 4 sets of bolt, 4 plate, 2 rubber pad, the sleeper maintenance convenient, can use repeatedly

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    Product advantage
    • Cement sleepers need steam release at one time. The appearance is smooth, the inside is hard, and it contains multiple rebars.

    • Cement sleepers have a wide range of materials, uniform specifications, uniform elasticity, good insulation, high stability, and are not affected by external conditions such as weather and temperature. They do not rot and have a long service life.

    • Prestressed concrete sleepers not only save a lot of steel, but also have the advantages of long service life, good track stability, and high speed and large capacity requirements.

    General specifications of cement sleeper rail

    General specifications
    name Width (mm) Thickness (mm) Length (mm) Note
    Note 220 160 2500 16 length specifications in total
    Turnout sleepers (common) 220 160 2600-4850, rounded to 150mm /
    Turnout sleepers (standard) 240 160 2600-4800, carry at 200mm A total of 12 length specifications
    Bridge sleepers 220 240, 260, 280, 300 3000 /

    Conventional spacing of cement sleeper rails

    Sleeper spacing

    The spacing of the sleepers should be determined according to conditions such as traffic volume, travel speed, and track bed type. When the distance is small, the forces acting on the subgrade, track bed, steel rails and sleepers themselves are small, but if the distance is too small, it will increase the engineering cost and affect the tamping operation of the track bed. The sleeper spacing is generally 52-62 cm. The Chinese railway usually shows the sleeper distance indirectly by the number of sleepers laid per kilometer.

    Sleeper spacing should be decided according to the vehicle speed and traffic volume, ballast type conditions. Spacing is small, the roadbed, ballast, rail and sleepers are forces suffered their own small, but the spacing is too small to increase the project cost, and the effect of the ballast tamping. Sleeper spacing is generally 52 ~ 62 cm. China Railway General laid per kilometer root number sleeper indirect display sleeper spacing.

    Conventional spacing of cement sleeper rails

    The safety rules
    • Railroad transportation of sleepers should use vehicles with fixed frames. The transporter should be compatible with the size of the sleepers. The number of loading layers should be no more than 6 layers. After loading, it should be tied tightly to prevent displacement during transportation.

      Sleeper road transport should be used with a fixed frame of the vehicle, vehicles should be compatible with the sleeper size, loading layers of not more than 6 layer, after loading shall be bond firmly, prevent the transit of displacement.
    • The sleeper railway transportation shall be carried in accordance with the loading scheme approved by the railway department.

      Sleeper railway transportation should loading scheme according to the railway departments approved for loading.
    • When loading the car, two triangular wedges are plugged between each sleeper to prevent collision and damage during the transportation of the sleeper.

      When loading, between each stack of sleeper plug two block triangular wedge of wood, to prevent damage during transport collision, sleeper.
    • (1) A concrete sleeper shall be carried by four persons; the bridge sleeper and the fork sleeper shall be provided with additional personnel.

      (1) carrying a concrete sleeper should be 4 people a pillow, pillow etc .; bridge fork lift personnel should be increased.
    • The sleeper railway transportation shall be carried in accordance with the loading scheme approved by the railway department.

      Sleeper railway transportation should loading scheme according to the railway departments approved for loading.
    • (2) When lifting the sleeper, the hanging sleeper should be firm, the lifting and transportation should be stable, and the steps should be the same when placed.

      (2) carrying a sleeper, hanging pillow should be firm, lifted should be smooth, placed when the pace should be consistent.
    • The sleeper railway transportation shall be carried in accordance with the loading scheme approved by the railway department.

      Sleeper railway transportation should loading scheme according to the railway departments approved for loading.
    • (3) A single person carrying a wooden pillow shall be supported by a fixed person. When arriving at the designated place, place one end of the wooden pillow first, make the wooden pillow stand upright, and then lower it. You should not shrug your shoulders and avoid colliding with others.

      (4) single carry wood should be fixed personnel shoulder. Arrived at the designated location for placement, should first be a sleeper end, make the sleeper is erect, and then down, should not shrug a throw, avoid collisions with others.
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