Roadbed structure based on solid waste utilization

Abstract

The utility model discloses a roadbed structure based on solid waste utilization, and particularly relates to the technical field of highway roadbeds, which comprises a pavement base layer, a solid waste laying layer is arranged at the upper end of the pavement base layer, a coarse particle stable soil layer is arranged at the upper end of the solid waste laying layer, and geogrid cloth is arranged at the upper end of the coarse particle stable soil layer. A solid waste gravel layer is arranged at the upper end of the geogrid cloth, a first asphalt pasting layer is arranged at the upper end of the solid waste gravel layer, and a mixed gravel layer is arranged at the upper end of the first asphalt pasting layer. During actual use, the utilization rate of solid waste can be effectively increased under the corresponding arrangement state of the solid waste laying layer, the solid waste gravel layer and the mixed gravel layer, and meanwhile the structural strength of the roadbed can be effectively improved through the solid waste laying layer, the lime soil mixed filling layer and the solid waste gravel layer formed by mixing solid waste and gravel. Meanwhile, under the corresponding arrangement state of the geogrid cloth, the dispersed load and stress can be increased, and the bearing capacity of the roadbed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway subgrades, and more specifically, to a subgrade structure based on solid waste utilization. Background Art

[0002] With the continuous progress of urban construction, a large number of asphalt roads need to be rebuilt, expanded, and reconstructed, which will inevitably generate a large amount of urban solid waste. The treatment of this solid waste will become a huge problem. When some roads are rebuilt, the solid waste can be reused. For example, a regenerated subgrade structure based on the full utilization of solid waste disclosed in the prior art publication number (CN214497037U) separates the asphalt layer of the old asphalt road solid waste by milling and crushing, and recycles it into asphalt layer solid waste recycled material; the old roadbed concrete block layer, water-stabilized macadam layer, and crushed stone roadbed layer of the old asphalt road solid waste are made into crushed stone mixture. 20% of the asphalt layer solid waste recycled material, 10% of the crushed stone mixture, and lime are mixed and filled into the regenerated subgrade lime-fly ash gravel layer; before construction, it is necessary to measure the water content of the asphalt layer solid waste recycled material and the crushed stone mixture. If the water content does not meet the construction standard, an appropriate amount of water can be added to ensure the bonding strength of the regenerated subgrade lime-fly ash gravel layer.

[0003] When the above device is laid, it is beneficial to the timely drainage of the asphalt road, so that the fill under the subgrade is not damaged. The regenerated subgrade graded drainage layer is a structure with trapezoidal convex parts, and a fixed frame with a drainage function is set, which is beneficial to fixing the mixed building materials, especially conducive to the laying of the mixed building materials on the slopes of the convex parts, enabling the seepage water to flow out quickly while strengthening the subgrade. However, its utilization rate of solid waste is relatively low, and the structure is relatively complex, which is likely to affect the construction efficiency of workers and the control of costs. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a subgrade structure based on solid waste utilization. The technical problem to be solved by the utility model is: how to increase the utilization rate of solid waste during road paving.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A subgrade structure based on solid waste utilization, including a road surface base layer, on which there is a solid waste laying layer, on the upper end of the solid waste laying layer there is a coarse-grained stabilizing soil layer, on the upper end of the coarse-grained stabilizing soil layer there is a geogrid cloth, on the upper end of the geogrid cloth there is a solid waste crushed stone layer, on the upper end of the solid waste crushed stone layer there is a first asphalt adhesive layer, and on the upper end of the first asphalt adhesive layer there is a mixed crushed stone layer;

[0006] The upper end of the mixed gravel layer is provided with a second asphalt adhesive layer. The upper end of the second asphalt adhesive layer is provided with a small particle gravel layer. The upper end of the small particle gravel layer is provided with a first asphalt concrete layer. The upper end of the first asphalt concrete layer is provided with a second asphalt concrete layer. The upper end of the second asphalt concrete layer is provided with a third asphalt concrete layer.

[0007] In a preferred embodiment, the solid waste laying layer is composed of solid waste, and a lime soil mixed filling layer is provided in the gaps between the solid wastes. The coarse particle stabilized soil layer is composed of a mixture of cement, lime and soil.

[0008] In a preferred embodiment, the geogrid fabric is a plastic-steel material component. The thickness of the solid waste laying layer is 15 - 20 cm, and the mixed gravel layer is a mixture layer of solid waste and gravel.

[0009] In a preferred embodiment, the cross-sectional thickness of the mixed gravel layer is 5 - 10 cm, the cross-sectional thickness of the small particle gravel layer is less than 5 cm, and the small particle gravel layer is supported by a gravel material laying.

[0010] In a preferred embodiment, the cross-sectional thicknesses of the first asphalt concrete layer, the second asphalt concrete layer and the third asphalt concrete layer are arranged in a decreasing state in the main viewing direction.

[0011] In a preferred embodiment, the thickness of the first asphalt concrete layer is 8 cm, the thickness of the second asphalt concrete layer is 6 cm, the thickness of the third asphalt concrete layer is 4 cm, and the upper end of the road surface base layer 1 is in a compacted state.

[0012] The technical effects and advantages of the present utility model:

[0013] When the present utility model is actually used, through the corresponding setting states of the solid waste laying layer, the solid waste gravel layer and the mixed gravel layer, the utilization rate of solid waste can be effectively increased. At the same time, in the solid waste laying layer and the lime soil mixed filling layer, and the solid waste gravel layer mixed with solid waste and gravel, the structural strength of the roadbed can be effectively increased. At the same time, in the corresponding setting state of the geogrid fabric, the dispersed load and stress can be increased, the bearing capacity of the roadbed can be improved, and at the same time, the cost of road laying can be reduced by improving the utilization rate of solid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the overall unfolded structure of the present utility model.

[0016] Figure 3 It is for the present utility model Figure 1 The enlarged schematic diagram of part A in the figure.

[0017] Figure 4 For the present utility model Figure 2 Schematic enlarged view of part B in it.

[0018] The reference numerals are: 1 roadbed base course, 2 third asphalt concrete, 3 solid waste laying layer, 4 coarse-grained stabilized soil layer, 5 geogrid fabric, 6 solid waste gravel layer, 7 first asphalt adhesive layer, 8 mixed gravel layer, 9 second asphalt adhesive layer, 10 small-grained gravel layer, 11 first asphalt concrete, 12 second asphalt concrete, 13 lime soil mixed filling layer. Specific embodiments

[0019] The present utility model provides a roadbed structure based on solid waste utilization, as shown in Figure 1 , 2 , 3 and 4, including a roadbed base course 1, on the upper end of which there is a solid waste laying layer 3, on the upper end of the solid waste laying layer 3 there is a coarse-grained stabilized soil layer 4, on the upper end of the coarse-grained stabilized soil layer 4 there is a geogrid fabric 5. By arranging the geogrid fabric 5, the soil can be reinforced, the stability of the soil can be improved, the load and stress can be dispersed, the bearing capacity of the foundation can be increased, and the structural strength of the road can be enhanced. On the upper end of the geogrid fabric 5 there is a solid waste gravel layer 6;

[0020] On the upper end of the solid waste gravel layer 6 there is a first asphalt adhesive layer 7, on the upper end of the first asphalt adhesive layer 7 there is a mixed gravel layer 8, on the upper end of the mixed gravel layer 8 there is a second asphalt adhesive layer 9, on the upper end of the second asphalt adhesive layer 9 there is a small-grained gravel layer 10, on the upper end of the small-grained gravel layer 10 there is a first asphalt concrete 11;

[0021] On the upper end of the first asphalt concrete 11 there is a second asphalt concrete 12, on the upper end of the second asphalt concrete 12 there is a third asphalt concrete 2. The solid waste laying layer 3 is composed of solid waste, and there is a lime soil mixed filling layer 13 in the gaps between the solid wastes, which can effectively increase the utilization efficiency of the solid waste and also enhance the strength of the roadbed base course. The coarse-grained stabilized soil layer 4 is composed of a mixture of cement, lime and soil. The geogrid fabric 5 is a plastic-steel material component;

[0022] The thickness of the solid waste laying layer 3 is 15 - 20 cm. The mixed gravel layer 8 is a mixed layer of solid waste and gravel. The cross-sectional thickness of the mixed gravel layer 8 is 5 - 10 cm. The cross-sectional thickness of the small-grained gravel layer 10 is less than 5 cm. The small-grained gravel layer 10 is laid and supported by gravel material;

[0023] The cross-sectional thicknesses of the first asphalt concrete 11, the second asphalt concrete 12, and the third asphalt concrete 2 are arranged in a decreasing state in the main viewing direction. The thickness of the first asphalt concrete 11 is 8 cm, the thickness of the second asphalt concrete 12 is 6 cm, the thickness of the third asphalt concrete 2 is 4 cm, and the upper end of the road surface base layer 1 is in a compacted state.

[0024] Working principle of the present utility model:

[0025] When the present utility model is in use, the staff compacts the upper end of the road surface base layer 1. Subsequently, the solid waste is laid on the upper end of the road surface base layer 1. After the laying of the solid waste is completed, the staff can fill the gaps between the solid wastes with the lime soil mixed filling layer 13. Then, the external equipment is used to compact the solid waste laying layer 3 and the lime soil mixed filling layer 13. The cement, lime, and soil are mixed evenly and laid on the upper end of the solid waste laying layer 3 and compacted. Subsequently, the staff can lay the geogrid cloth 5 on the upper end of the coarse-grained stable soil layer 4, lay the solid waste gravel layer 6 on the geogrid cloth 5, and spray the first asphalt adhesive layer 7 on its upper end. Then, the solid waste and gravel are mixed evenly and laid on the upper end of the first asphalt adhesive layer 7. Subsequently, the second asphalt adhesive layer 9 is sprayed on the upper end of the mixed gravel layer 8, the small-grained gravel layer 10 is laid on its upper end and compacted. Subsequently, the staff can lay the first asphalt concrete 11, the second asphalt concrete 12, and the third asphalt concrete 2 on the upper end of the small-grained gravel layer 10 in sequence. After each layer is laid, the external equipment is used to compact it.

[0026] Finally, the following points should be noted: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A subgrade structure based on solid waste utilization, characterized in that, Including: The road base course (1), on the upper end of which there is a solid waste laying layer (3), on the upper end of the solid waste laying layer (3) there is a coarse-grained stabilized soil layer (4), on the upper end of the coarse-grained stabilized soil layer (4) there is a geogrid cloth (5), on the upper end of the geogrid cloth (5) there is a solid waste gravel layer (6), on the upper end of the solid waste gravel layer (6) there is a first asphalt adhesive layer (7), and on the upper end of the first asphalt adhesive layer (7) there is a mixed gravel layer (8); On the upper end of the mixed gravel layer (8) there is a second asphalt adhesive layer (9), on the upper end of the second asphalt adhesive layer (9) there is a small-grained gravel layer (10), on the upper end of the small-grained gravel layer (10) there is a first asphalt concrete (11), on the upper end of the first asphalt concrete (11) there is a second asphalt concrete (12), and on the upper end of the second asphalt concrete (12) there is a third asphalt concrete (2).

2. The subgrade structure based on solid waste utilization according to claim 1 is characterized in that: The solid waste laying layer (3) is composed of solid waste, and there is a lime soil mixed filling layer (13) in the gaps between the solid wastes. The coarse-grained stabilized soil layer (4) is composed of a mixture of cement, lime and soil.

3. The subgrade structure based on solid waste utilization according to claim 1 is characterized in that: The geogrid cloth (5) is a plastic-steel material component. The thickness of the solid waste laying layer (3) is 15 - 20 cm, and the mixed gravel layer (8) is a mixture layer of solid waste and gravel.

4. A roadbed structure based on solid waste utilization according to claim 1, characterized in that: The cross-sectional thickness of the mixed gravel layer (8) is 5 - 10 cm, the cross-sectional thickness of the small-grained gravel layer (10) is less than 5 cm, and the small-grained gravel layer (10) is laid and supported by gravel material.

5. A roadbed structure based on solid waste utilization according to claim 1, characterized in that: The cross-sectional thicknesses of the first asphalt concrete (11), the second asphalt concrete (12) and the third asphalt concrete (2) are set to show a decreasing state in the main view direction.

6. The subgrade structure based on solid waste utilization according to claim 5, characterized in that: The thickness of the first asphalt concrete (11) is 8 cm, the thickness of the second asphalt concrete (12) is 6 cm, the thickness of the third asphalt concrete (2) is 4 cm, and the upper end of the road base course (1) is in a rammed state.

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