LU502560B1 - Method for Laying Railway - Google Patents

Abstract

The invention discloses a railway laying method, including following steps. Step 1: Move the rail to the shoulders on both sides; Step 2: Provide a sulphur-bonded mortar preparation mechanism in working area and spread the molten sulphur-bonded mortar over the shoulder for reinforcement; Step 3: Move the rail from the shoulders to the sleeper rail ditch, then install the jointbar; Step 4: Jack up steel rail, place the sleeper in position and then place an insulating pad under rail; Step 5: Place the insulating pad under rail in position, then place fasteners into the sleeper rail ditch, fix the fasteners and connect them with sleeper rail ditch to form linear rail. The turnout should be assembled in advance and then moved to the preinstallation position for installation. This invention, i.e., the railway laying method, abandons the traditional in-situ turnout construction method and achieves the field connection of preprepared turnouts by moving them to preset positions by equipment, which makes the working efficiency high and on-site construction period short, and greatly reduces the influence of construction on transportation.

Description

Method for Laying Railway Field of the Invention The invention relates to the field of railway laying. More specifically, the invention refers to a railway laying method. Background of the Invention With the continuous improvement of China's urbanization level, urban traffic has entered a rapid development period. Rail transport, as an important part of transportation, has a huge role in promoting the economic development. Besides, in order to meet the rapid growth of railway transportation demand, railway has been rapidly developed. However, turnouts are laid in traditional ways at site when laying rail, which results in long construction duration and long-term traffic inconvenience.

Description of the Invention In order to realize these purposes and other advantages of the invention, a railway laying method is hereby provided, comprising the following steps: Step 1: Drag the steel rails to laying locations as required and respectively move them to the shoulders on both sides: Step 2: Provide a sulphur-bonded mortar preparation mechanism in working area to prepare sulphur-bonded mortar and spread the molten sulphur-bonded mortar over the shoulder for reinforcement. The sulphur-bonded mortar preparation mechanism should also move for reinforcement along with the implementation of reinforcement process; Step 3: Move the steel rails from shoulders to the sleeper rail ditch, then install the jointbar, bolts and washers, and tighten the nut with required torque to fix the steel rails in the sleeper rail ditch; Step 4: Jack up steel rails, place the sleeper in position and then place an insulating pad under rail; Step 5: Place the insulating pad under rail in position, then place fasteners into the sleeper rail ditch, fix the fasteners and connect them with sleeper rail ditch to form linear rail.

The turnout should be assembled in advance and then moved to the preinstallation position U502560 for installation.

It is preferred that prefabricated turnouts can be moved to preinstallation position, including: Step 6:

The line should be blocked before construction, before which slow train schedule of one hour should be dispatched and applied to determine the blocking period; In the blocking period, the sleeper railway ballast of existing lines at the turnout design position should be removed to the bottom of the sleeper and existing accessories should be disassembled, and the traveling rail for trolleys transporting turnouts should be prepared; Traveling rails should be laid transversely along the steel rails of turnout to make them perpendicular to the steel rails of turnout according to the steps presented below: horizontally lift pre-assembled turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them,

then manually pull the hauling cable to slowly and transversely move trolleys, during which the direction should be checked at real time to avoid deviation.

In case of deviation, adjust directions in times to keep turnouts move in parallel, Stop the transverse movement when the turnout moves to a predetermined position, and install wheel stopper on both sides of the traveling rail to temporarily fix the transport trolley on the traveling rail.

It is preferred that prefabricated turnouts can be moved to preinstallation position, further including: Step 7: Lift turnouts by rail jacks and take out transport trolleys; Traveling rails should be laid vertically along the steel rails of turnout to make them parallel to the steel rails of turnout according to the steps presented below: horizontally lift turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them, then manually pull the hauling cable to slowly and vertically move trolleys.

Technician should check the direction and position of turnouts at a fixed movement distance interval.

In case of deviation, turnouts should be adjusted in time to make them reach designed position at a constant speed in a correct way; Once the turnout reaches the predetermined position, wheel stopper should be set in front of and at rear of wheel on the traveling rail after technician checks the position with no LUS02560 errors found. It is preferred that prefabricated turnouts can be moved to preinstallation position, further including: Step 8: After technician checks that turnouts are in correct position and direction as required, lift turnouts with multiple rail jacks and manually remove the transport trolleys and traveling rail; Then, control track jacks to gently drop down synchronously. When the stroke of track jacks is about to the end, stably pad turnouts with skid at 8 supporting points. After that, remove track jacks, and support turnouts again when track jacks are at a specified height to complete the disassembly, then connect turnouts with linear railways in front and at rear. It is preferred that prefabricated turnouts can be moved to preinstallation position, further including: Step 9: Reshape turnouts and front and rear lines; Step 10: Respectively set a working mark in front of and at rear of the working point of turnouts with an appropriate distance and respectively set s mobile stop sign board in front of and at rear of turnouts with an appropriate distance before maintaining turnouts. Preferably, the maintenance for turnouts in Step 9 includes tamping, ballast supplement, height, levelness, track gauge, track direction, offset distance, rail gap, staggering, gusset plate, accessories, rail brace, switch rail, slide plate conformance, backpiece distance, and interval and road appearance check.

It is preferred that the rail is provided with anticreeper and anti-creep strut. The invention includes at least the following beneficial effects: This invention, i.e., the railway laying method, abandons the traditional in-situ turnout construction method and achieves the field connection of preprepared turnouts by moving them to preset positions by equipment, which makes the working efficiency high and on-site construction period short, and greatly reduces the influence of construction on transportation.

Other advantages, objectives and characteristics of the invention will be partly explained below and partly understood by the technical personnel in the field through the research and practice of the invention.

Specific Embodiment Mode

A more detailed description for the invention is given below by combining with the LUS02560 embodiments to command the technical personnel in this field to implement by referring to the contents of the Specification. The following description is intended to illustrate the invention to enable technicians of the field to embody the invention. The preferred embodiments described below are only examples, and technicians of the field can think of other obvious variations. The basic principles of the invention defined in the following descriptions may be applied to other embodiments, variations, improvements, equivalents and other technical schemes that do not deviate from the spirit and scope of the invention.

It should be understood by technicians of the field that the orientation or positional relation indicated by the terms such as "lengthwise", "horizontal", "up", "down", "front" and "rear", "left", "right" and "vertical", "level", "top", "bottom", "inside" and "outside" is based on the orientation or positional relation shown in embodiments. This is only to facilitate the description of the invention and to simplify the description, and is not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so they cannot be understood as a limitation to the invention. It also should be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, and in another embodiments, the number of the element may be multiple, so the term "one" should not be understood as a limitation of quantity. An embodiment of the invention provides a railway laying method comprising the following steps: Step 1: Drag the steel rails to laying locations as required and respectively move them to the shoulders on both sides; Step 2: Provide a sulphur-bonded mortar preparation mechanism in working area to prepare sulphur-bonded mortar and spread the molten sulphur-bonded mortar over the shoulder for reinforcement. The sulphur-bonded mortar preparation mechanism should also move for reinforcement along with the implementation of reinforcement process. Sulphur-bonded mortar can improve the construction pavement soil, fill holes and improve strength. Step 3: Move the steel rails from shoulders to the sleeper rail ditch, then install the jointbar, bolts and washers, and tighten the nut with required torque to fix the steel rails in the sleeper rail ditch;

Step 4: Jack up steel rails, place the sleeper in position and then place an insulating pad LUS02560 under rail; Step 5: Place the insulating pad under rail in position, then place fasteners into the sleeper rail ditch, fix the fasteners and connect them with sleeper rail ditch to form linear rail. 5 The turnout should be assembled in advance and then moved to the preinstallation position for installation. Move pefabricated turnouts to preinstallation position, including: Step 6: The line should be blocked before construction, before which slow train schedule of one hour should be dispatched and applied to determine the blocking period; In the blocking period, the sleeper railway ballast of existing lines at the turnout design position should be removed to the bottom of the sleeper and existing accessories should be disassembled, and the traveling rail for trolleys transporting turnouts should be prepared; Traveling rails should be laid transversely along the steel rails of turnout to make them perpendicular to the steel rails of turnout according to the steps presented below: horizontally lift pre-assembled turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them, then manually pull the hauling cable to slowly and transversely move trolleys, during which the direction should be checked at real time to avoid deviation. In case of deviation, adjust directions in times to keep turnouts move in parallel, Stop the transverse movement when the turnout moves to a predetermined position, and install wheel stopper on both sides of the traveling rail to temporarily fix the transport trolley on the traveling rail. The time of transverse movement is within 15min.

Step 7: Lift turnouts by rail jacks and take out transport trolleys. The time for pulley changing directions should be within 15min.

Traveling rails should be laid vertically along the steel rails of turnout to make them parallel to the steel rails of turnout according to the steps presented below: horizontally lift turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them, then manually pull the hauling cable to slowly and vertically move trolleys.

Technician should check the direction and position of turnouts at a fixed movement distance interval. In case of deviation, turnouts should be adjusted in time to make them reach designed position at a constant speed in a correct way. The vertical movement time should be controlled within 10min. LU502560 Once the turnout reaches the predetermined position, wheel stopper should be set in front of and at rear of wheel on the traveling rail after technician checks the position with no errors found.

Step 8: After technician checks that turnouts are in correct position and direction as required, lift turnouts with multiple rail jacks and manually remove the transport trolleys and traveling rail; Then, control track jacks to gently drop down synchronously. When the stroke of track jacks is about to the end, stably pad turnouts with skid at 8 supporting points. After that, remove track jacks, and support turnouts again when track jacks are at a specified height to complete the disassembly, then connect turnouts with linear railways in front and at rear. Step 9: Reshape turnouts and front and rear lines. The maintenance for turnouts in Step 9 includes tamping, ballast supplement, height, levelness, track gauge, track direction, offset distance, rail gap, staggering, gusset plate, accessories, rail brace, switch rail, slide plate conformance, backpiece distance, and interval and road appearance check.

Step 10: Respectively set a working mark in front of and at rear of the working point of turnouts with an appropriate distance and respectively set s mobile stop sign board in front of and at rear of turnouts with an appropriate distance before maintaining turnouts. Install anticreeper and anti-creep strut for rail.

The embodiment plan of the invention has been disclosed as above, but it is not limited to the application listed in the specification and embodiment mode. It can be fully applied to various fields suitable for the invention. For those who are familiar with the field, additional modifications can be easily realized. So, the invention is not limited to specific details and illustrations shown and described here without departing from the general concept defined by the claim and the equivalent range.

Claims (7)

Claims LU502560

1. À railway laying method, comprising the following steps: Step 1: Drag the steel rails to laying locations as required and respectively move them to the shoulders on both sides; Step 2: Provide a sulphur-bonded mortar preparation mechanism in working area to prepare sulphur-bonded mortar and spread the molten sulphur-bonded mortar over the shoulder for reinforcement. The sulphur-bonded mortar preparation mechanism should also move for reinforcement along with the implementation of reinforcement process; Step 3: Move the steel rails from shoulders to the sleeper rail ditch, then install the jointbar, bolts and washers, and tighten the nut with required torque to fix the steel rails in the sleeper rail ditch; Step 4: Jack up steel rails, place the sleeper in position and then place an insulating pad under rail; Step 5: Place the insulating pad under rail in position, then place fasteners into the sleeper rail ditch, fix the fasteners and connect them with sleeper rail ditch to form linear rail.

The turnout should be assembled in advance and then moved to the preinstallation position for installation.

2. The railway laying method as described in Claims 1 has a characteristic that prefabricated turnouts can be moved to preinstallation position, including: Step 6: The line should be blocked before construction, before which slow train schedule of one hour should be dispatched and applied to determine the blocking period; In the blocking period, the sleeper railway ballast of existing lines at the turnout design position should be removed to the bottom of the sleeper and existing accessories should be disassembled, and the traveling rail for trolleys transporting turnouts should be prepared; Traveling rails should be laid transversely along the steel rails of turnout to make them perpendicular to the steel rails of turnout according to the steps presented below: horizontally lift pre-assembled turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them, then manually pull the hauling cable to slowly and transversely move trolleys, during which the direction should be checked at real time to avoid deviation. In case of deviation, adjust directions in times to keep turnouts move in parallel;

Stop the transverse movement when the turnout moves to a predetermined position, and? 902560 install wheel stopper on both sides of the traveling rail to temporarily fix the transport trolley on the traveling rail.

3. The railway laying method as described in Claims 2 has a characteristic that prefabricated turnouts can be moved to preinstallation position, further including: Step 7: Lift turnouts by rail jacks and take out transport trolleys; Traveling rails should be laid vertically along the steel rails of turnout to make them parallel to the steel rails of turnout according to the steps presented below: horizontally lift turnouts simultaneously with multiple rail jacks, place the turnouts in trolleys, and place trolleys on traveling rail and connect a hauling cable to them, then manually pull the hauling cable to slowly and vertically move trolleys.

Technician should check the direction and position of turnouts at a fixed movement distance interval. In case of deviation, turnouts should be adjusted in time to make them reach designed position at a constant speed in a correct way; Once the turnout reaches the predetermined position, wheel stopper should be set in front of and at rear of wheel on the traveling rail after technician checks the position with no errors found.

4. The railway laying method as described in Claims 3 has a characteristic that prefabricated turnouts can be moved to preinstallation position, further including: Step 8: After technician checks that turnouts are in correct position and direction as required, lift turnouts with multiple rail jacks and manually remove the transport trolleys and traveling rail; Then, control track jacks to gently drop down synchronously. When the stroke of track jacks is about to the end, stably pad turnouts with skid at 8 supporting points. After that, remove track jacks, and support turnouts again when track jacks are at a specified height to complete the disassembly, then connect turnouts with linear railways in front and at rear.

5. The railway laying method as described in Claims 4 has a characteristic that prefabricated turnouts can be moved to preinstallation position, further including: Step 9: Reshape turnouts and front and rear lines; Step 10: Respectively set a working mark in front of and at rear of the working point of turnouts with an appropriate distance and respectively set s mobile stop sign board in front of and at rear of turnouts with an appropriate distance before maintaining turnouts.

6. The railway laying method as described in Claims 5 has a characteristic that the maintenance for turnouts in Step 9 includes tamping, ballast supplement, height, levelness, track gauge, track direction, offset distance, rail gap, staggering, gusset plate, accessories, rail brag 02°60 switch rail, slide plate conformance, backpiece distance, and interval and road appearance check.

7. The railway laying method as described in Claims 6 has a characteristic that anticreeper and anti-creep strut are installed for rail.