Hidden retaining roadbed structure

It is an implicit technology that supports and blocks the roadbed. It is applied in the direction of infrastructure engineering, underwater structures, roads, etc. It can solve the problems of large reinforcement scope, large engineering volume and engineering investment, and achieves reduction of engineering investment, good landscape effect, The effect of facilitating road maintenance

Inactive Publication Date: 2009-11-11
CHINA RAILWAY DESIGN GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this common roadbed structure needs to reinforce the whole range of the foundation at the lower part of the roadbed

Method used

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  • Hidden retaining roadbed structure
  • Hidden retaining roadbed structure
  • Hidden retaining roadbed structure

Examples

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Example Embodiment

[0011] The implicit support roadbed structure provided by the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0012] Such as image 3 As shown, the implicit supporting subgrade structure provided by the present invention is to provide retaining walls 10 on one or both sides of the rectangular area 9 on the subgrade 8 with a trapezoidal cross-section, and at the same time, the subgrade soil under the rectangular area 9 is spaced vertically A plurality of reinforcement piles 11 are provided, and a pile top cushion layer 12 is horizontally provided at the top of all the reinforcement piles 11. The installation position and height of the retaining wall 10 are determined by the load action range, and the retaining wall 10 may adopt a layered wrapped reinforced soil structure. In addition, the filling and compaction standards other than the retaining wall 10 on the subgrade 8 can be the same as the filling and compaction ...

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Abstract

The invention discloses a hidden retaining roadbed structure, wherein a retaining wall(s) is/are arranged at one side or two sides of a rectangular region on a roadbed with a trapezoidal section and a plurality of consolidating piles are vertically arranged at intervals in the foundation soil which is arranged at the lower part of the rectangular region simultaneously. Furthermore, a pile block cushion course is arranged horizontally at the top of all consolidating piles. In the hidden retaining roadbed structure, the retaining wall(s) made from wrapped reinforced earth structures arranged in layers is/are arranged at one side or two sides of the rectangular region on the roadbed with a trapezoidal section. The influence range of road load can be limited within the retaining wall if the retaining wall is arranged in the influence range of the road load as the retaining wall has good quack-proof performance, thereby greatly reducing the reinforcement range of the foundation under the roadbed based on the guarantee of subsidence control effects so as to be capable of effectively reducing construction investment. Additionally, greening can also be conducted on side slopes to obtain better landscape effect without any change in the conventional trapezoidal section shape of the roadbed. Furthermore, the structure is convenient for maintenance and repair of road.

Description

technical field [0001] The invention belongs to the technical field of railway and highway subgrades, in particular to an implicit supporting subgrade structure. Background technique [0002] With the rapid development of railway passenger dedicated lines, high-speed railways and expressways, the investment in subsidence control of soft ground has accounted for a large proportion of project investment. There are many kinds of railway or highway subgrade structures commonly used at present, one of which is a retaining subgrade structure with retaining walls, and the other is a common subgrade structure with a trapezoidal cross section. figure 1 It is a schematic cross-sectional view of a retaining subgrade structure with retaining walls in the prior art. Such as figure 1 As shown, the cross-section of the subgrade 1 on this support-retaining subgrade structure is rectangular, and a retaining wall 2 is provided on both sides of the subgrade 1, and a plurality of reinforcemen...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/06E02D29/02
CPCY02A30/60
Inventor 崔维孝冷景岩
Owner CHINA RAILWAY DESIGN GRP CO LTD
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