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Fill roadbed structure and construction method thereof

A technology of roadbed and stonework, applied in infrastructure engineering, botanical equipment and methods, roads, etc., can solve the problems of high protection cost of filling roadbed, high cost of spoil yard, and large accident loss, etc., to reduce soil erosion , reduce the cost of protection, and reduce the effect of harm

Active Publication Date: 2016-11-16
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a filling subgrade structure and its construction method to solve the problems of high protection cost of traditional filling subgrade, not green and environmental protection, large accident losses, and high cost of building spoil yards.

Method used

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  • Fill roadbed structure and construction method thereof

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Embodiment

[0023] Refer to attached figure 1 , the present embodiment provides a filling roadbed structure, including a roadbed 1, the bottom of the side slope of the roadbed 1 is laid with a stone cushion 2, and the stone cushion 2 and the side slope of the roadbed 1 are filled with earth-rock mixed filling 3 In order to form a filling slope, the slope ratio of the filling slope is less than or equal to 1:4.0, and the outer side of the subgrade is filled with stone cushion and earth-rock mixed filling to form a protection system to protect the conventional subgrade and serve as the foundation of the slope soil. The slope top of the subgrade 1 is provided with a guardrail 5, and the earth-rock mixed filling 3 is covered with slope soil 4, and trees 6 are planted on the slope soil 4. 3 is the spoil produced by the excavation section, and the slope soil 4 comes from the surface of the roadbed, and no additional soil is needed.

[0024] The construction method is as follows:

[0025] Firs...

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Abstract

The invention provides a fill roadbed structure and a construction method thereof, and belongs to the technical field of roadbed construction. The fill roadbed structure comprises a roadbed, a stone work cushion layer is laid on the bottom of the outer side of a roadbed slope, the stone work cushion layer and the part above the roadbed slope are filled with soil-stone mixed filler so as to form a fill side slope, and the slope ratio of the fill side slope is smaller than or equal to 1:4.0. The outer side of the roadbed is filled with the stone work cushion layer and the soil-stone mixed filler to jointly form a protection system protecting the conventional roadbed and serving as a basis for slope soil at the same time. The problems that a traditional fill roadbed is high in protection expense, not environment-friendly, large in accident loss, high in waste slag field establishing expense and the like are solved.

Description

technical field [0001] The invention relates to a roadbed structure, which belongs to the technical field of roadbed construction. Background technique [0002] In highway engineering construction, especially in mountainous areas, subgrade engineering generally has excavated road sections and filled road sections. In the filling subgrade, when the filling height is below 20m, the earth and rock shall be filled according to the slope ratio of 1:1.3~1:1.75. Then use dry stone slope protection or frame beam slope protection on the outside of the slope. [0003] The traditional filling subgrade design only considers the stability of the subgrade, and the subgrade slope can remain stable under the safety factor required by the code. In this case, the side slope obtained is relatively large, usually 1:1.5. At the same time, in order to prevent water and soil erosion, it is necessary to install protective measures such as sash beams or dry stones on the slope. These protective me...

Claims

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Application Information

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IPC IPC(8): E01C3/00E02D17/20A01G1/00
CPCE01C3/00E02D17/20
Inventor 王传波
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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