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Subway line track bed sleeper nylon sleeve failure treatment construction method

A nylon casing and construction method technology, applied in the field of engineering technology science, can solve the problems of large investment, time-consuming and laborious, etc., and achieve the effects of saving construction time, ensuring accuracy, and reducing labor intensity

Pending Publication Date: 2018-01-30
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the time-consuming and labor-intensive problems of the existing methods and to provide a construction method for quickly, efficiently and safely completing the failure treatment of the nylon casing of the track bed sleeper of the subway operation line within a limited time window. The construction method is as follows :

Method used

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  • Subway line track bed sleeper nylon sleeve failure treatment construction method
  • Subway line track bed sleeper nylon sleeve failure treatment construction method
  • Subway line track bed sleeper nylon sleeve failure treatment construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see Figure 1-3 , the operation platform for failure treatment of pre-embedded nylon sleeves in track bed sleepers of subway operation lines is mainly composed of operation platform frame (1), platform iron plate (2), and horizontal adjustment air bubbles (3).

[0039] see Figure 1-3 , the frame structure of the operating platform is welded by two 1900mm long and three 550mm long channel steels 50×37×4.5mm, one 550mm long channel steel is set at the bottom of the operating platform frame at one end, and a 800mm × The 550mm×2.5mm iron plate is welded to the operating platform, and a horizontal adjustment bubble is drilled in the middle of the channel steel at one end of the iron plate frame and installed and fixed firmly after being tested.

[0040] see Figure 4 , Rail track bed sleeper nylon casing failure treatment for subway operation line fixed operating platform fixture (4), welded by one 300mm long and 2 120mm long channel steel 50×37×4.5mm, the upper part is 1...

Embodiment 2

[0046] see Figure 9 24 hours after the new nylon sleeve (13) is anchored, its coagulation strength meets the requirements. Use a hoist to lift the rail and install the fasteners. First install the rubber backing plate and the iron backing plate under the plate. After the bolts are tightened, place the rubber pad under the rail. When placing it, the rubber pad under the rail falls into the groove of the iron backing plate and gets stuck. Gauge pads, fastener clips, and T-bolts. Check that the track gauge, direction, height, triangular pit and other track state geometric dimensions and fastener bolt torque meet the specification requirements, so that the line state meets the requirements for operation and opening.

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Abstract

The invention relates to engineering science, in particular to a subway line track bed sleeper nylon sleeve failure treatment construction method. The method includes: adopting an electric wrench forunscrewing T-shaped bolts of fasteners to demount elastic strips and gauge blocks, adopting two track jacks to simultaneously jack up a rail, fixing a hydraulic drill to an operating platform througha hydraulic drill vacuum suction bottom plate, taking out a faulted nylon sleeve, clearing residues and water in a hole by a dust collector, and slowly injecting an anchoring agent from the inner bottom of the hole. By adoption of the method, subway line track bed sleeper nylon sleeve failure treatment is completed in limited time, hydraulic drill mounting and accurate positioning on the operatingplatform are realized, construction time is saved, labor intensity is relieved, and construction quality and accuracy in nylon sleeve positioning for anchoring are guaranteed.

Description

[technical field] [0001] The invention relates to engineering technology science, in particular to a construction method for failure treatment of nylon sleeves of railroad bed sleepers in subway operation lines. [Background technique] [0002] With the expansion of domestic subway construction scale, problems such as obsolete equipment, track wear, aging rail material, cracking of ballast bed and failure of pre-embedded nylon casings on sleepers have gradually appeared in the lines that have been built and opened in the early stage. Line maintenance will become an emerging issue. industry. Among them, some of the pre-embedded nylon bushings used to fix the iron backing plate bolts on the ballast bed sleepers have aged. In particular, the continuous increase in the operation time and density of the subway has led to the loosening and failure of the pre-embedded nylon bushings on the sleepers on the overall ballast bed. Phenomenon, so that the fasteners can not effectively fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/32
Inventor 郑康海黄新徐明发赵文君林晓明杨鹏汪占龙钱琨
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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