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Road roadbed structure

A subgrade and road technology, applied in roads, roads, buildings, etc., can solve the problems of easy detachment of multi-layer lime soil layers, lateral compression resistance and poor resistance to soil erosion, so as to prevent water and soil erosion, enhance structural strength, enhance The effect of binding strength

Active Publication Date: 2019-08-16
YANGTZE UNIVERSITY
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Problems solved by technology

[0003] The existing subgrade structure includes multiple layers of lime soil layers and stable layers. Although the construction process of this structure is simple and it has a certain structural strength and stability, the performance of this structure depends entirely on the quality of the material. For lateral compression and soil erosion The resistance is poor, and after long-term use, the multi-layer lime soil layer is prone to detachment, which needs to be improved

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] see as Figure 1-Figure 5 As shown, the specific embodiment includes a foundation 1, a first lime soil layer 2, a second lime soil layer 3, and a stable gravel layer 4, wherein the first lime soil layer 2 is laid on the foundation 1, and the first lime soil layer 2 is laid with the second lime soil layer. Lime soil layer 3, the second lime soil layer 3 is paved with crushed stone stable layer 4, and the crushed stone stable layer 4 is laid with surface course; Described first lime soil layer 2 is inserted with holding pile 5, holding pile The lower end of 5 passes through the first lime soil layer 2 and is inserted in the foundation 1, the upper end of the holding pile 5 is exposed above the first lime soil layer 2, and the first lime soil layer 2 and the second lime soil layer 3 are interposed There is a reinforced net 6, which is set on the holding pile 5, an...

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Abstract

The invention relates to a road roadbed structure, and relates to the technical field of road engineering. A first lime-soil layer is laid on a foundation, a second lime-soil layer is laid on the first lime-soil layer, a gravel stabilization layer is laid on the second lime-soil layer, and a surface layer is laid on the gravel stabilization layer; a bearing pile is arranged in the first lime-soillayer in an inserted mode, and the lower end of the bearing pile is arranged in the foundation in an inserted mode after penetrating through the first lime-soil layer; a reinforcing net is arranged between the first lime-soil layer and the second lime-soil layer, and the reinforcing net is arranged on the bearing pile in a sleeving mode; a triangular pipeline is fixedly arranged on the upper surface of the second lime-soil layer, the bottom side of the triangular pipeline abuts against the upper surface of the second lime-soil layer, and a water seepage hole is formed in the side edge of the triangular pipeline; and the upper surface of the second lime-soil layer is paved with a leveling layer, and the triangular pipeline is buried in the leveling layer. According to the road roadbed structure, the bearing pile is arranged so that the connection strength between the first lime-soil layer and the foundation is strengthened, the lateral load-resisting strength of a roadbed is strengthened; and the reinforcing net is arranged, so that the connection strength between the lime-soil layers is strengthened, and layering is avoided.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a road subgrade structure. Background technique [0002] The subgrade is a road structural component used to carry the load of the passing vehicles above and transmit the distributed load to the depth of the foundation in the road structure, which is mainly composed of rammed earth. [0003] The existing subgrade structure includes multiple layers of lime soil layers and stable layers. Although the construction process of this structure is simple and it has a certain structural strength and stability, the performance of this structure depends entirely on the quality of the material. For lateral compression and soil erosion Its resistance is poor, and after long-term use, it is easy to separate from the multi-layer lime soil layer, which needs to be improved. Contents of the invention [0004] The object of the present invention is to aim at the defects and deficiencie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04E01C3/06
CPCE01C3/00E01C3/04E01C3/06Y02A30/60
Inventor 佘艳华
Owner YANGTZE UNIVERSITY
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