Offset correction structure and method for urban rail transit viaduct structure in soft soil area

An urban rail transit and regional technology, applied in the field of deviation correction, can solve problems such as no practical application, deviation correction of urban rail transit elevated structures, etc., to achieve easy control of construction quality, improve safety and controllability, and avoid secondary deviations Effect

Pending Publication Date: 2016-08-17
昆山市轨道交通投资发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of quickly and effectively correcting the elevated structure of urban rail transit without interrupting the operation of the rail transit line and affecting the safety of the line has not yet been practically applied.

Method used

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  • Offset correction structure and method for urban rail transit viaduct structure in soft soil area
  • Offset correction structure and method for urban rail transit viaduct structure in soft soil area
  • Offset correction structure and method for urban rail transit viaduct structure in soft soil area

Examples

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Embodiment

[0030] Such as Figure 1-4 Shown, a kind of rectification structure and method of urban rail transit elevated structure in soft soil area, the applicable object of this method is urban rail transit elevated structure, and this method comprises the following steps:

[0031] Step 1: When the urban rail transit elevated structure undergoes lateral displacement, set multiple rows of stress relief holes in the non-offset area, and fill the holes with materials that can prevent the stress relief holes from collapsing and allow the stress relief holes to deform The materials used here are sand and gravel, and the longitudinal distribution of stress relief holes is guaranteed to be consistent with the direction of asymmetric loading;

[0032] Step 1.1: Accelerate the dissipation of soil extrusion stress and pore water pressure caused by the construction of rotary grouting piles by setting stress release holes in the same direction as the asymmetric surcharge, and keep the distance bet...

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PUM

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Abstract

The invention relates to an offset correction structure and method for an urban rail transit viaduct structure in a soft soil area. The offset correction structure and method are used for carrying out transverse offset correction on the urban rail transit viaduct structure in the soft soil area. The offset correction structure comprises an offset area, a viaduct structure area and a non-offset area which are transversely distributed in sequence. An urban rail transit viaduct is arranged in the viaduct structure area, and pile caps and viaduct pile foundations of the urban rail transit viaduct are arranged in soil of the viaduct structure area. At least one stress relief hole belt is arranged in soil of the non-offset area in the extending direction of the urban rail transit viaduct. Multiple rows of jet grouting piles are arranged in soil of the offset area in the extending direction of the urban rail transit viaduct. Compared with the prior art, the offset correction structure has the advantages of being easy to control, safe, reliable, flexible, controllable, safe to operate, wide in application range and the like.

Description

technical field [0001] The invention relates to a deviation correcting method, in particular to a deviation correcting structure and method for urban rail transit elevated structures in soft soil areas. Background technique [0002] The lines of urban rail transit can be divided into ground, underground and elevated lines. Since most lines pass through urban areas, the possibility of ground lines is generally ruled out. Elevation of urban rail transit lines means that as many rail transit lines as possible use elevated lines. Elevation can effectively overcome the unfavorable factors brought by natural conditions such as high groundwater level and poor soil quality to the construction and use of underground lines. It is also the most effective measure to reduce construction costs and operating costs and shorten the construction period. With rapid development, the elevated structure has been more and more used in urban rail transit because of its low cost and short construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 吴楠肖军华赵志国张德刘琤玉
Owner 昆山市轨道交通投资发展有限公司
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