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Composite roadbed device based on existing rail traffic roadbed and pile column construction method

A composite subgrade and existing track technology, applied in road, track, infrastructure engineering, etc., can solve the problems of rail transit subgrade disturbance, affect the safety performance of existing rail transit, and affect the quality of piles, etc., and meet the hole diameter standard , Clean the hole thoroughly, and the effect of small filling coefficient

Active Publication Date: 2020-01-24
中铁十局集团第八工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At rail transit interchanges, it is necessary to add new rail transit subgrades to the existing rail transit subgrades to meet the traffic needs of rail transit interchanges. Therefore, the composite subgrade device based on the existing rail transit subgrades is an important rail transit component. , it is necessary to implant piles in the foundation. The existing pile construction methods are all using reverse circulation, rotary drilling and other bored pile construction, which requires the use of mud. The mud may enter the concrete, thus affecting the pile. At the same time, it also produces noise and vibration that disturb the rail transit roadbed and affect the safety performance of the existing rail transit

Method used

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  • Composite roadbed device based on existing rail traffic roadbed and pile column construction method
  • Composite roadbed device based on existing rail traffic roadbed and pile column construction method

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Embodiment Construction

[0042] According to the review guidelines, terms such as "having", "comprising" and "including" used in the present invention should be understood as not deriving the presence or addition of one or more other elements or combinations thereof.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not b...

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Abstract

Disclosed are a composite roadbed device based on an existing rail traffic roadbed and a pile column construction method. The composite roadbed device comprises an existing roadbed body (10), an uplink roadbed body (20) and a downlink roadbed body (30). The existing roadbed body (10) is located at the middle. The uplink roadbed body (20) is located on one side portion of the existing roadbed body(10). The downlink roadbed body (30) is located on the other side portion of the existing roadbed body (10). The existing roadbed body (10) serves as an existing business line, and the uplink roadbedbody (20) and the downlink roadbed body (30) serve as new business lines, so that the integration of the existing business line and new business lines is realized at a rail traffic intersection.

Description

technical field [0001] The invention relates to a composite roadbed device and a pile construction method, in particular to a composite roadbed device and a pile construction method based on an existing rail transit roadbed. Background technique [0002] At rail transit interchanges, it is necessary to add new rail transit subgrades to the existing rail transit subgrades to meet the traffic needs of rail transit interchanges. Therefore, the composite subgrade device based on the existing rail transit subgrades is an important rail transit component. , it is necessary to implant piles in the foundation. The existing pile construction methods are all using reverse circulation, rotary drilling and other bored pile construction, which requires the use of mud. The mud may enter the concrete, thus affecting the pile. At the same time, it also produces noise and vibration that disturb the rail transit roadbed and affect the safety performance of the existing rail transit. [0003]...

Claims

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Application Information

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IPC IPC(8): E01B2/00E02D27/12
CPCE01B2/006E02D27/12
Inventor 张锐光毕研美仇志坚周雍波常春章杨成达黄信强张培会
Owner 中铁十局集团第八工程有限公司
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