Pile-anchor-frame composite double-layer roadbed structure

A frame and double-layer technology, applied in the direction of infrastructure engineering, roads, roads, etc., can solve problems such as difficult to ensure environmental and economic benefits, and achieve the effects of reducing the damage of natural mountains, improving comprehensive performance, and reducing engineering costs

Inactive Publication Date: 2014-09-03
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to solve the problem that the existing roadbed structure is difficult to ensure good environmental and economic benefits when it is used in mountainous steep slope terrain, and to provide a new roadbed structure suitable for mountainous steep slope terrain

Method used

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Examples

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Embodiment 1

[0039] For the specific "pile-anchor-frame" composite double-layer subgrade structure, see Figure 3-Figure 6 .

[0040] When the present invention is used on a four-lane expressway or a first-class highway with a ground transverse slope of 30° to 45°, two lanes are arranged on the upper and lower road slabs, and the clear width of the road slab=2×3.75m (lane width)+2.5 m (emergency parking bandwidth) + 0.5m (left lateral width) + 0.5m (right lateral width) = 11m, cover plate side ditch top width = 0.75m (sidewalk) + 0.5m (lateral width) = 1.25 m, the clearance height of the lower road slab is 5m, such as Figure 7 As shown; when the ground slope is 25°-40° six-lane expressway or first-class highway, the upper and lower road slabs are respectively arranged with 3 lanes, and the clear width of the road slab=3×3.75m (lane width)+3m( Emergency parking bandwidth) + 0.75m (left lateral width) + 0.75m (right lateral width) = 15.75m, cover side ditch top width = 1m (sidewalk) + 0.5...

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Abstract

The invention discloses a pile-anchor-frame composite double-layer roadbed structure and belongs to the technical field of highway engineering. The pile-anchor-frame composite double-layer roadbed structure comprises main components such as anti-skidding piles, pre-stressed anchor cables, supporting columns, connecting beams, footing beams and pavement slabs, has multiple functions of mountain anchoring, side slope retaining, pavement supporting and double-layer traveling, has the characteristics of full playing of structure efficiency, high structure space utilization rate, excellent structure stability and anti-seismic property, moderate construction difficulty, high engineering adaptability, good environment benefit, good economic benefit and the like, is applicable to all-level highways under the condition of mountainous steep terrain, and is particularly applicable to multi-lane highways under the terrain condition that the ground cross slope is 30-45 degrees.

Description

technical field [0001] The invention relates to a roadbed structure of a highway, in particular to a composite roadbed structure suitable for steep slope terrain in mountainous areas and capable of double-deck driving, and belongs to the technical field of highway engineering. Background technique [0002] Subgrade structures under mountainous steep slope terrain conditions often require the comprehensive use of multiple structures such as rock-soil anchorage, slope retaining and pavement support to work together. All parts are organically combined and systematically integrated into an overall structural system, which makes it difficult to ensure good environmental and economic benefits when the existing subgrade structure is used in mountainous and steep terrain. In order to solve this problem, the present invention organically combines relevant structural technologies, maximizes strengths and circumvents weaknesses, and discloses a "pile-anchor-frame" composite roadbed str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C1/00E01C3/04E02D17/20
CPCY02A30/60
Inventor 孙国富李永梅刘继
Owner BEIJING UNIV OF TECH
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