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Subgrade bed structure of high-speed railway red clay cutting

A high-speed railway, red clay technology, applied in the direction of roads, tracks, ballast layers, etc., can solve the problem of not meeting the requirements of dynamic stability of high-speed railway bedding, and achieve the effect of ensuring long-term dynamic stability

Active Publication Date: 2012-07-11
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the red clay road section, if the common expansive soil cutting bed structure is adopted, it cannot meet the dynamic stability requirements of the high-speed railway bed.

Method used

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  • Subgrade bed structure of high-speed railway red clay cutting
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  • Subgrade bed structure of high-speed railway red clay cutting

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Embodiment Construction

[0019] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements. As mentioned above, the present invention provides a high-speed railway red clay cutting bed structure, which is stable in settlement and can meet the long-term dynamic stability requirements of high-speed railway roadbeds.

[0020] The technical solutions of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. figure 1 It is a structural schematic diagram of an embodiment of the high-speed railway red clay embankment structure of the present invention. Such as figure 1 As shown, the high-speed railway red clay road cutting foundation bed structure in this embodiment includes the foundation bed surface layer 1 and the foundation bed bottom layer 2 . A waterproof layer 3 is laid above the surface layer 1 of the foundation bed, a water-proof layer 4 is pro...

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Abstract

The invention discloses a subgrade bed structure of a high-speed railway red clay cutting. The subgrade bed structure comprises a surface layer of a subgrade bed and a bottom layer of the subgrade bed, wherein a waterproof layer is paved on the surface layer of the subgrade bed; a water-resisting layer is arranged between the bottom layer of the subgrade bed and a foundation; a drainage structureis arranged on two sides of the bottom layer of the subgrade bed in a length direction of the bottom layer of the subgrade bed respectively; and the depth of the bottom layer of the subgrade bed is determined according to the water content ratio of red clay which needs to be replaced. The subgrade bed structure of the high-speed railway red clay cutting is stably settled and can meet the long-term dynamic stability requirement of a high-speed railway subgrade bed.

Description

technical field [0001] The invention relates to the field of high-speed railway embankment construction, in particular to a high-speed railway red clay embankment bed structure. Background technique [0002] The provisions on expansive soil cutting subgrade bed in the "Code for Design of Special Railway Subgrade" (TB10035-2006 J158-2006) are as follows: [0003] 1. The surface of the subgrade bed should be completely replaced with materials that meet the requirements of the corresponding railway grade standards. [0004] 2. Replacement or soil improvement measures should be taken for the bottom layer of the foundation bed. For weak and medium expansive soil (rock) treatment thickness, the railway speed of 200km / h should not be less than 1.0m; for strong expansive soil (rock) treatment thickness should be greater than the severe climate impact layer, and should not be less than the depth of the base layer. [0005] These regulations are mainly aimed at the expansive soil of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B2/00E01B1/00
Inventor 郭建湖陈占赵新益詹学启杨果林刘晓红邬强韦随庆李越兴赵勇
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP