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Railway track temporary supporting structure and construction method thereof

A technology for temporary support and railway tracks, applied in track maintenance, tracks, roads, etc., can solve problems such as settlement of existing railway tracks, achieve the effects of speeding up construction progress, enhancing stability, and creating economic benefits

Inactive Publication Date: 2020-06-30
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the object of the present invention is a temporary support structure for railway track and its construction method, to solve the technical problem of the settlement of the existing railway track when the new tunnel passes under the existing railway track

Method used

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  • Railway track temporary supporting structure and construction method thereof
  • Railway track temporary supporting structure and construction method thereof
  • Railway track temporary supporting structure and construction method thereof

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Embodiment

[0053] This embodiment provides a temporary support structure for a railway track and its construction method, which is used for temporary support and reinforcement of the existing railway track when a new tunnel passes under the existing railway track, so as to reduce the risk of damage caused by the shield construction of the new tunnel. The settlement of the existing railway track caused by it will ensure the safe operation of the railway track.

[0054] During the construction process of a new tunnel, when the shield machine crosses the existing railway, it is easy to destroy the relative stability of the soil layer, causing a large disturbance of the surrounding rock, making the excavation surface unstable, and prone to construction problems such as roof fall, resulting in accidents on the ground. Large settlement will endanger the construction and affect the safety of railway operation; the temporary support method of the present invention, combined with the grouting proc...

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Abstract

The invention discloses a railway track temporary supporting structure which comprises a plurality of fulcrum piles, the fulcrum piles are vertically arranged between an existing railway track and a newly-built tunnel, and the fulcrum piles are evenly arranged along the existing railway track at intervals. The longitudinal supporting beams are horizontally arranged at the upper parts of the fulcrum piles and are arranged in parallel along the direction of the existing railway track; transverse supporting beams are arranged at the intersection points of the fulcrum piles and the longitudinal supporting beams and arranged between the fulcrum piles and the longitudinal supporting beams. A plurality of transverse distribution beams are arranged between every two adjacent transverse supportingbeams; the fulcrum piles, the longitudinal supporting beams, the transverse supporting beams and the transverse distribution beams are combined to form an overhead stress structure; load of the existing railway track is transmitted to the overhead stress structure, settlement of the existing railway track is effectively reduced, the temporary supporting structure is removed after a newly-built tunnel penetrates through an existing railway track section in construction, beneficial construction conditions are provided for tunnel construction, and safety, stability and durability of the existingrailway track are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling, and in particular relates to a temporary support structure for a railway track and a construction method thereof. Background technique [0002] In the past few decades, China has seen an unprecedented boom in subway construction, and the demand for infrastructure and transportation systems is huge and continuous. With the increasing development of infrastructure systems in Chinese cities, many subway tunnel constructions have to pass under existing railway tracks. Because the shield method is widely used in the construction of new tunnels, when the new tunnel passes through the existing railway track, due to the further impact of foundation deformation and soil movement on the surrounding structure, it will inevitably cause the settlement of the railway track, and may even Threat to the safe operation of the train. [0003] The construction of a new tunnel is a very delicate process. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B37/00
CPCE01B37/00
Inventor 梅源张心玥付燎原周东波杨彤
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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