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A Maintenance Method for Uneven Settlement of Embedded Track Steel Channel Ballast Subgrade

A technology of embedded rails and steel channels, which is applied in the field of rail transit, can solve problems such as line outages, time-consuming and labor-intensive problems, and achieve the effects of reducing damage, less difficult operation, and ensuring integrity

Active Publication Date: 2021-08-17
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Resurfacing the track bed is time-consuming and labor-intensive, and causes the line to be out of service

Method used

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  • A Maintenance Method for Uneven Settlement of Embedded Track Steel Channel Ballast Subgrade
  • A Maintenance Method for Uneven Settlement of Embedded Track Steel Channel Ballast Subgrade
  • A Maintenance Method for Uneven Settlement of Embedded Track Steel Channel Ballast Subgrade

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present ...

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Abstract

The invention discloses a maintenance method for the uneven settlement of embedded track steel channel type roadbed, comprising: step 1: preparation work; step 2: cleaning road surface pavement; step 3: chiseling away the concrete ballast bed on both sides of the steel channel; Step 4: Fine adjustment of the steel channel: Cut the ballast bed reinforcement connected to the steel channel, use the steel channel connection device, the reaction frame and the jack to lift the steel channel; place the height-adjusting pad on the bottom of the steel channel and adjust the tooling to complete Steel channel geometry adjustment; Step 5: Fixing the steel channel: planting steel bars at a distance in the ballast bed on both sides of the steel channel, and fixing the implanted steel bars with the steel channel; Step 6: Pouring filling materials; Step 7: Restoring Paving. The present invention realizes rail precision restoration by finely adjusting the steel groove, has large adjustment amount and low operation difficulty, minimizes damage to the ballast bed, greatly reduces maintenance engineering quantity, and shortens maintenance period. This method is also applicable to the reconstruction of existing lines with embedded tracks.

Description

technical field [0001] The invention relates to a maintenance method for uneven settlement of embedded track steel channel type roadbed, belonging to the technical field of rail transportation. Background technique [0002] Uneven settlement of subgrade is a common disease, often appearing in municipal transportation and rail transit ground lines. There are many reasons for the uneven subsidence of the subgrade, such as groundwater erosion and sand loss of the subgrade; backfilling and insufficient compaction due to construction; damage and failure of the underlying pipeline; and excessive load on the road surface. The uneven settlement of the subgrade in the track area will affect the track accuracy and reduce the comfort of the train. In severe cases, it will cause the train to roll over and jump, posing a major safety hazard. During the operation stage of the line, after the uneven subsidence of the roadbed occurs, the common maintenance methods for track professionals a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B37/00
CPCE01B37/00
Inventor 罗炯杨刚刘光胜田骥吴刚苗彩霞崔逸鹏任志江郑洁
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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