Steep slope high-fill roadbed structure adopting high-density EPS filler

Abstract

The invention discloses a steep slope high-filling roadbed structure adopting a high-density EPS filler. The steep slope high-filling roadbed structure comprises short piles, cross beams, stand columns, an enlarged foundation, longitudinal connecting beams, a bearing plate, breast boards, a light filler, a sand cushion layer, a pavement slab, an anti-collision guardrail and side ditches. The self-weight and soil side pressure of a roadbed filling material are reduced, the utilization efficiency of a supporting structure material is improved, and therefore, the roadbed structure is more reasonable in stress, the structural stability of the roadbed structure is remarkably improved, the mass of the supporting structure of the roadbed structure is effectively reduced, and the problem of roadbed structure design mainly based on fill in a steep-slope high-fill roadbed is effectively solved to a certain extent. The steep slope high-filling roadbed structure is good in adaptability to mountainsteep slope terrains, safe and reliable in structure, moderate in construction difficulty and good in environmental and economic benefits, provides great convenience for mountainous engineering construction, and has popularization and application value in the technical field of highway engineering.

Description

technical field [0001] The invention relates to a steep-slope high-fill roadbed structure, and is particularly suitable for a roadbed structure that adopts light materials as roadbed fillers and fills mainly in steep-slope high-fill roadbeds, and belongs to the technical field of highway engineering. Background technique [0002] With the continuous advancement of my country's transportation infrastructure construction, the construction of highways continues to extend to the western region, and more and more high-fill roadbeds are built on steep slopes in mountainous areas. The high-fill subgrade with high fill and steep slope not only has poor stability and difficult construction, but also has a serious impact on the ecological environment. [0003] In order to avoid filling subgrades with high and steep slopes, the proportion of bridges and tunnels is usually increased in engineering. However, under the same engineering conditions, the cost of bridges and tunnels with the...

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Problems solved by technology

[0006] The purpose of the present invention is to address the shortcomings of the above-mentioned background technology, and use high-density EPS as roadbed filler to propose a lightweight structure suitable for high-fill roadbeds on steep slopes, so as to solve the problem of excessive lateral pressure and insufficient structural strength of traditional roadbed fillers. Sufficient, structural instability and other problems

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