Do you know how the cement sleeper of the railway is replaced? Հայաստան

Ways and steps of railway cement sleeper replacement:

Cement sleeper is composed of cement, sand, stone, high-strength rebar, with not afraid of water, not afraid of sun, not afraid of corrosion and other characteristics, cement sleeper also has strong stability, strong service life, good insulation, low maintenance costs. When the sleeper needs to be replaced, it must also be operated in strict accordance with the specification.

The sleeper section is planned to be closed for 180 minutes. Before the closure, the construction personnel shall not work ahead of time and shall carry out the operation according to the relevant specifications and technical disclosure of the construction. After the blockade order is issued, the construction personnel can remove the ballast on the bottom of the concrete tie and remove the tie shifting. When replacing the sleeper, first remove the ballast in the two sleeper boxes to about 10cm below the bottom of the sleeper, remove the fastener and use the excavator sleeper machine to pull out the existing cement sleeper, and the excavator sleeper machine will identify the intelligent construction of Jining Intelligent Engineering. After the construction personnel remove the excess ballast under the sleeper, the new sleeper is inserted under the rail, according to the square sleeper point, screw on the fastener, remove the press, tighten the fastener with the sleeve, load the ballast, and then carry out the next cycle construction, and then the construction lot is replaced by a unified track, track, and tamping, and the tamping is done with a tow four and tamping machine.

When the cement sleeper is replaced with the excavator, the method of continuous replacement is not more than 2 pieces, and 36 pieces of cement sleeper are replaced within each blockade point, so as to facilitate maintenance and fully ensure the safe operation of the train.

After the construction is completed, the safety and quality inspectors check the level elevation of the line and the fastening and tamping of the fasteners one by one, confirm that there are no safety and quality problems before the pin can be opened, and send special personnel to check and maintain the line after the opening. Cement sleeper road transport should use vehicles with fixed frame, transport vehicles should be compatible with the size of the sleeper, the number of loading layers is not more than 6 layers, after loading should be firmly tied, to prevent displacement during transportation.

The concrete sleeper used on the railway is based on type II and the new type II, the railway sleeper requirements are more strict than the mine sleeper, in the service life, the cost performance is more suitable than the wooden sleeper, so the vast majority of the railway is used cement sleeper is the object carrying the rail, is the railway and special track laying and bearing equipment paving material. Sleeper material source is wide, the same specification, uniform elasticity, good insulation, high stability, not affected by weather temperature and other external conditions.

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