Concurrent operation high-speed railway separated line roadbed structure and construction method thereof

A technology for high-speed railways and construction methods, applied in infrastructure engineering, roads, buildings, etc., can solve problems such as subsidence, deformation, and offset of operational roadbeds, and achieve the effects of reducing project costs and avoiding equipment encroachment

Pending Publication Date: 2017-08-11
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These treatment measures cause additional settlement deformation and even offset of the operating roadbed, which is unacceptable for high-speed railway roadbeds

Method used

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  • Concurrent operation high-speed railway separated line roadbed structure and construction method thereof
  • Concurrent operation high-speed railway separated line roadbed structure and construction method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0031] like figure 1 As shown, the subgrade structure of the separated high-speed railway in parallel operation includes multiple rows of bored piles 3 uniformly distributed along the width direction of the new railway subgrade 1, and each row of bored piles 3 includes a plurality of bored piles 3 uniformly distributed along the length direction of the railway subgrade. The bottom of the bored pile 3 penetrates the soft soil layer to the hard soil layer or rock layer at the bottom, and the top of the bored pile 3 is laid with a 0.1-0.2m thick concrete cushion, and a reinforced concrete U-shaped groove 5 is arranged on the concrete cushion , the top of the bored pile 3 is embedded in the bottom plate of the reinforced concrete U-shaped groove 5, and is rigidly connected with the bottom plate of the reinforced concrete U-shaped groove 5, and the r...

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Abstract

The invention relates to the technical field of railway construction, in particular to a concurrent operation high-speed railway separated line roadbed structure and a construction method thereof. The roadbed structure comprises a plurality of rows of drilled grouting piles uniformly distributed in the width direction of a railway roadbed. Each row comprises the multiple of drilled grouting piles uniformly distributed in the length direction of the railway roadbed. The roadbed structure further comprises reinforced concrete U-shaped grooves in the tops of the drilled grouting piles. The tops of the drilled grouting piles are embedded into reinforced concrete U-shaped groove bottom plates and are in rigid connection with the reinforced concrete U-shaped groove bottom plates. The reinforced concrete U-shaped grooves are filled with roadbed filling. The reinforced concrete U-shaped grooves have the effect of reducing the gradient, on the one hand, the building cost of projects is lowered, and on the other hand, an additional load is prevented from invading the operating roadbed.

Description

technical field [0001] The invention relates to the technical field of railway construction, in particular to a separate roadbed structure and a construction method for a parallel-operated high-speed railway. Background technique [0002] my country's four-vertical and four-horizontal high-speed railway network has been basically completed. Newly built high-speed railways, in order to save construction land, or to be able to introduce existing high-speed railway networks, are increasingly encountering technical difficulties in parallel operation of high-speed railways. For example, the Shanghe-Hangzhou high-speed railway has the problem of multiple parallel operation line bases in Shuijiahu, Hefei Beicheng, Chaohu, Huzhou and other places. [0003] In soft soil areas, due to the weak geological conditions, low soil strength and high compressibility, reasonable foundation treatment methods must be adopted for the increase and decrease lines to maintain the stability of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B2/00E02D5/34
CPCE01B2/006E02D5/34
Inventor 孙红林顾湘生赵新益陈尚勇杭红星吴成杰邓天天廖超
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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