CN214497037U - Regeneration roadbed structure based on solid waste full utilization - Google Patents
Regeneration roadbed structure based on solid waste full utilization Download PDFInfo
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- CN214497037U CN214497037U CN202120090188.9U CN202120090188U CN214497037U CN 214497037 U CN214497037 U CN 214497037U CN 202120090188 U CN202120090188 U CN 202120090188U CN 214497037 U CN214497037 U CN 214497037U
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Abstract
The utility model discloses a regeneration roadbed structure based on solid useless full utilization, include the regeneration roadbed mud grey knot stone layer of laying from bottom to top, the drainage blanket is joined in marriage to the regeneration roadbed level, regeneration roadbed cement stabilizes metalling and regeneration roadbed pitch layer, regeneration roadbed mud grey stone layer includes main part and trapezoidal lug portion, the drainage blanket is joined in marriage to the regeneration roadbed level includes the barrier layer, fixed frame and the mixed building material of notes in fixed frame, the shape of laying of fixed frame and by the upper surface and the inclined plane of main part, the surface structure shape that lug portion upper surface formed is unanimous mutually, the barrier layer sets up between fixed frame and regeneration roadbed mud grey knot stone layer, regeneration roadbed level joins in marriage the bottom both sides edge of drainage blanket width direction and respectively is equipped with the escape canal, the upper end height setting of escape canal is on the barrier layer, between the lower surface. The utility model discloses have high structural strength, high steadiness and excellent drainage function, solved present useless low, the regeneration road bed drainage untimely problem of destroying the stratum basale admittedly.
Description
Technical Field
The utility model relates to a road bed technical field especially relates to a regeneration road bed structure based on solid useless full utilization.
Background
With the demand of social development, urban construction is continuously carried out, wherein a large amount of asphalt roads need to be rebuilt, expanded and rebuilt, which inevitably generates a large amount of urban solid wastes, and the stacking and treatment of the solid wastes become a huge problem. In order to respond to the national requirements on building a conservation-oriented society, developing circular economy and the like, the recycling of solid wastes is increasingly emphasized. For recycling of solid wastes, related researchers have proposed methods, such as "method of applying construction waste recycled material to semi-rigid base inorganic recycled material (CN 201910654238.9)", in which construction waste is crushed into recycled material particles, soil solidifying agent and water are added to perform material sealing, and gelling agent is added to adjust to an optimal water content during use, so as to obtain semi-rigid base inorganic recycled material; "slope protection structure and river course bank protection (CN201720825703.7) that have building rubbish reclaimed materials", the bed course, basic unit, the bank protection brick of this bank protection are made by building rubbish reclaimed materials. Although the method recycles the solid waste, the method has the disadvantages of complex components of the construction waste, incomplete utilization and low utilization rate, and cannot fundamentally solve the problem of solid waste accumulation pollution. In addition, the roadbed paved by the reclaimed materials has the phenomenon that the base layer is damaged due to untimely water drainage because the roadbed is broken stone.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a regeneration roadbed structure based on solid useless full utilization, have high structural strength, high steadiness and excellent drainage function, solved present solid useless treatment utilization rate low, regeneration roadbed drainage untimely destroy the problem of stratum basale.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a regeneration road bed structure based on solid useless full utilization, includes regeneration road bed mud ash knot stone layer, the regeneration road bed gradation of laying from bottom to top and joins in marriage drainage blanket, regeneration road bed cement and stabilize metalling and regeneration road bed pitch layer, regeneration road bed mud ash stone layer includes trapezoidal main part and the trapezoidal lug portion that is located the main part upper surface, regeneration road bed gradation joins in marriage drainage blanket and includes barrier layer, fixed frame and the mixed building material of notes in fixed frame, the shape of laying of fixed frame is unanimous with the surface structure shape that forms by the upper surface of main part and inclined plane, lug portion upper surface, the barrier layer sets up between fixed frame and regeneration road bed mud ash knot stone layer, regeneration road bed gradation joins in marriage drainage blanket width direction's bottom both sides edge and respectively is equipped with the escape canal, the upper end height setting in escape canal is between barrier layer upper and lower surface.
The fixed frame comprises material placing grooves which are arranged in a grid shape, wherein water leakage holes for draining water are formed in the material placing grooves, and the water leakage holes are formed in two groove walls of the material placing grooves in the width direction of the graded drainage layer of the regeneration roadbed.
The thickness of the regenerated roadbed asphalt layer is 17-20 cm.
The impermeable layer is laid by adopting geotechnical impermeable cloth, and the thickness of the impermeable layer is 10-12 mm.
The height of the fixing frame is 15-20 cm.
The utility model has the advantages that:
(1) the regeneration road bed is provided with a regeneration road bed graded drainage layer containing an impermeable layer, which is beneficial to timely drainage of asphalt roads and ensures that the filling soil below the road bed is not damaged.
(2) The regenerated roadbed graded drainage layer is of a structure with a trapezoidal convex block part, and a fixing frame with a drainage function is arranged, so that mixed building materials can be fixed, laying of the mixed building materials on a slope of the convex block part is facilitated, and the roadbed can be reinforced while water seepage flows out quickly.
(3) The regeneration roadbed adopts all solid wastes of old asphalt roads (the old asphalt roads are composed of asphalt layers of the old asphalt roads, concrete block layers of old roadbed, water stabilizing gravel layers and slag road base layers), and the old asphalt roads are used in the newly-built asphalt roadbed in proportion, so that the utilization rate of the solid wastes of the old asphalt roads reaches 100%, the problem of solid waste stacking is solved, and the environment protection is facilitated.
Drawings
FIG. 1 is a schematic cross-sectional structure diagram of a regenerated roadbed paved by the method of the invention;
fig. 2 is a schematic perspective view of the fixing frame of the regenerated roadbed laid by the method of the utility model.
In the figure: the recycled roadbed asphalt layer 1, the recycled roadbed cement stabilized gravel layer 2, the recycled roadbed graded drainage layer 3, the fixing frame 31, the material placing groove 311, the water leakage holes 312, the impermeable layer 4, the recycled roadbed lime stone layer 5, the main body part 51, the bump part 52 and the drainage ditch 6.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1-2, a regeneration roadbed structure based on solid waste and waste utilization comprises a regeneration roadbed mud and ash hardened layer 5, a regeneration roadbed graded drainage layer 3, a regeneration roadbed cement stabilized crushed stone layer 2 and a regeneration roadbed asphalt layer 1 which are laid from bottom to top, wherein the regeneration roadbed mud and ash hardened layer 5 comprises a trapezoid main body part 51 and a trapezoid convex block part 52 positioned on the upper surface of the main body part 51, the regeneration roadbed graded drainage layer 3 comprises an impermeable layer 4, a fixing frame 31 and a mixed building material filled in the fixing frame 31, the laying shape of the fixing frame 31 is consistent with the surface shape formed by the main body part 51 and the convex block part 52, the regeneration roadbed graded drainage layer 3 is made into a structure with a trapezoid convex shape through the arrangement, and drainage of seepage water into a drainage ditch 6 is facilitated.
The barrier layer 4 sets up between fixed frame 31 and regeneration road bed mud ash knot stone layer 5, 3 width direction's of regeneration road bed gradation drainage blanket bottom both sides edge respectively are equipped with escape canal 6, and the 6 degree of depth in escape canal is 30-35cm, the upper end height setting in the barrier layer 4 of escape canal 6 is between the lower surface, ensures that the infiltration flows into in the escape canal 6.
The regenerated roadbed lime concretion layer 5 is formed by mixing and filling solid waste regeneration materials of an asphalt layer, a crushed stone mixture and lime; the mixed building material is formed by mixing a grade ingredient prepared from a solid waste reclaimed material of an asphalt layer and a crushed stone mixture with a plastic strip and a nylon rope; the regenerated roadbed cement stabilized gravel layer 2 is formed by mixing graded gravel mixture with natural gravel, cement and water and paving; the regenerated roadbed asphalt layer 1 is formed by mixing and laying solid waste regenerated materials of the asphalt layer and new asphalt.
The asphalt layer solid waste regeneration material is prepared by recovering an asphalt layer of an old asphalt road, the asphalt layer solid waste regeneration material adopted in the regenerated roadbed lime stone layer 5 accounts for 20% of the total mass of the asphalt layer solid waste regeneration material prepared by recovering, the asphalt layer solid waste regeneration material adopted in the regenerated roadbed graded drainage layer 3 accounts for 50% of the total mass of the asphalt layer solid waste regeneration material prepared by recovering, and the asphalt layer solid waste regeneration material adopted in the regenerated roadbed asphalt layer 1 accounts for 30% of the total mass of the asphalt layer solid waste regeneration material prepared by recovering; the gravel mixture is prepared by recycling old roadbed concrete block layers, water-stable gravel layers and slag roadbed layers of the old asphalt roads left after the asphalt layers are separated, the gravel mixture adopted in the regenerated roadbed mud-ash gravel layer 5 accounts for 10% of the total mass of the gravel mixture prepared by recycling, the gravel mixture adopted in the regenerated roadbed graded drainage layer 3 accounts for 20% of the total mass of the gravel mixture prepared by recycling, and the gravel mixture adopted in the regenerated roadbed cement-stable gravel layer 2 accounts for 70% of the total mass of the gravel mixture prepared by recycling.
The lime accounts for 2 percent of the total mass of the regenerated roadbed mud-lime stone layer 5.
The plastic strips and the nylon ropes account for 2% of the total mass of the mixed building material. The length of plastic strip, nylon rope is 20mm, adds the plastic strip and plays the reinforcement winding effect with the nylon rope, not only can improve the intensity of regeneration road bed gradation drainage blanket 3, can also prevent the scattering of gradation rubble.
In the grade ingredients, the granules with the particle size of less than or equal to 4.75mm are 35% of the total mass of the grade ingredients, the granules with the particle size of more than 4.75mm and less than or equal to 9.5mm are 20% of the total mass of the grade ingredients, the granules with the particle size of more than 9.5mm and less than or equal to 13.2mm are 10% of the total mass of the grade ingredients, the granules with the particle size of more than 13.2 and less than or equal to 16mm are 10% of the total mass of the grade ingredients, the granules with the particle size of more than 16 and less than or equal to 19mm are 5% of the total mass of the grade ingredients, the granules with the particle size of more than 19 and less than or equal to 26.5mm are 10% of the total mass of the grade ingredients, and the granules with the particle size of more than 26.5 and less than or equal to 31.5mm are 8% of the total mass of the grade ingredients.
In the regenerated roadbed cement stabilized gravel layer 2, the doping amount of the natural gravel is 20 percent of the total mass of the regenerated roadbed cement stabilized gravel layer 2, the doping amount of the cement is 4.5 percent of the total mass of the regenerated roadbed cement stabilized gravel layer 2, and the doping amount of the water is 4.8 percent of the total mass of the regenerated roadbed cement stabilized gravel layer 2.
In the graded broken stone mixture, the aggregate with the particle size of less than or equal to 4.75mm accounts for 29% of the total mass of the graded broken stone mixture, the aggregate with the particle size of more than 4.75mm and less than or equal to 9.5mm accounts for 25% of the total mass of the graded broken stone mixture, the aggregate with the particle size of more than 9.5mm and less than or equal to 19mm accounts for 26% of the total mass of the graded broken stone mixture, and the aggregate with the particle size of more than 19 and less than or equal to 31.5mm accounts for 20% of the total mass of the graded broken stone mixture.
In the regenerated roadbed asphalt layer 1, the natural macadam mixing amount is 70% of the total mass of the regenerated roadbed asphalt layer 1; the thickness of the regenerated roadbed asphalt layer 1 is 17-20 cm.
The impermeable layer 4 is laid by adopting geotechnical impermeable cloth, and the thickness of the impermeable layer 4 is 10-12 mm. The thickness of geotechnical anti-seepage cloth is 1mm, and the barrier layer 4 plays the effect of water proof, can prevent that water from continuing to ooze and damaging the filling below the road bed.
The fixed frame 31 comprises material placing grooves 311 which are arranged in a grid shape, water leakage holes 312 for water drainage are arranged on the material placing grooves 311, and the water leakage holes 312 are arranged on two groove walls of the material placing grooves 311 which are positioned in the width direction of the regeneration roadbed graded water drainage layer 3. The fixed frame 31 is made of high polymer plastics such as PVC, ABS and the like, the height of the fixed frame 31 is 15-20cm, each material placing groove 311 is of an upper end and lower end opening structure, or of a structure with an opening at the upper end and a water leakage hole 312 at the bottom, and the wall thickness is 30 mm; the water leakage holes 312 are arranged on two side surfaces of the material placing groove 311 along the width direction of the regeneration roadbed graded drainage layer 3, and the diameter of the water leakage holes 312 is 1 cm. The fixing frame 31 is used for fixing the crushed stone mixture, is beneficial to paving materials on the slope of the bump part 52, and can ensure the smooth drainage of the seepage water. The water leakage holes 312 at the joint of the edges of two adjacent fixing frames 31 are aligned and communicated one by one, which is more beneficial to timely discharge of water seepage.
The utility model discloses a regeneration road bed based on solid useless full utilization lays through following step:
(a) separating an asphalt layer of old asphalt road solid waste through milling and crushing, and recycling to prepare an asphalt layer solid waste reclaimed material; preparing an old road foundation concrete block layer, a water-stable gravel layer and a slag road foundation layer of the solid waste of the old asphalt road into a gravel mixture;
(b) mixing 20% of the solid waste regeneration material of the asphalt layer, 10% of the gravel mixture and lime, and filling into a regenerated roadbed lime stone layer 5; before construction, the water content of the asphalt layer solid waste reclaimed material and the crushed stone mixture needs to be measured, and if the water content does not reach the construction standard, a proper amount of water can be added to ensure the bonding strength of the regenerated roadbed lime stone layer 5;
(c) paving impermeable geotextile on the upper surface of a regenerated roadbed lime stone layer 5 to form an impermeable layer 4, then arranging a fixing frame 31 on the impermeable layer 4, preparing 50% of the asphalt layer solid waste reclaimed material and 20% of the gravel mixture into a graded material, mixing the graded material with a plastic strip and a nylon rope to form a mixed material, and injecting the mixed material into the fixing frame 31 to form a regenerated roadbed graded drainage layer 3;
(d) drainage ditches 6 are dug at the edges of two sides of the bottom of the regenerated roadbed graded drainage layer 3 in the width direction;
(e) grading 70% of the crushed stone mixture, mixing with natural crushed stone, cement and water, and paving the mixture above a regenerated roadbed graded drainage layer 3 to build a regenerated roadbed cement stabilized crushed stone layer 2;
(f) mixing 30% of the solid waste reclaimed materials of the asphalt layer with new asphalt, and paving the mixture above the regenerated roadbed cement stabilized gravel layer 2 to build a regenerated roadbed asphalt layer 1.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a regeneration road bed structure based on solid useless full utilization, includes regeneration road bed mud lime stone layer (5), regeneration road bed gradation drainage blanket (3), regeneration road bed cement stabilization rubble layer (2) and regeneration road bed pitch layer (1) that lay from bottom to top, its characterized in that: regeneration road bed mud ash knot stone layer (5) include trapezoidal main part (51) and trapezoidal lug portion (52) that are located main part (51) upper surface, regeneration road bed level is joined in marriage drainage blanket (3) and is included barrier layer (4), fixed frame (31) and fills the mixed building material in fixed frame (31), the shape of laying of fixed frame (31) is unanimous with the surface structure shape that is formed by the upper surface and inclined plane of main part (51), lug portion (52) upper surface, barrier layer (4) set up between fixed frame (31) and regeneration road bed mud ash knot stone layer (5), regeneration road bed level is joined in marriage the bottom both sides edge of drainage blanket (3) width direction and respectively is equipped with escape canal (6), the upper end height setting of escape canal (6) is between barrier layer (4) upper and lower surface.
2. The regeneration roadbed structure based on the solid waste full utilization, which is characterized in that: the fixed frame (31) comprises material placing grooves (311) which are arranged in a grid shape, water leakage holes (312) for draining water are formed in the material placing grooves (311), and the water leakage holes (312) are formed in two groove walls of the material placing grooves (311) in the width direction of the regeneration road base grading drainage layer (3).
3. The regeneration roadbed structure based on the solid waste full utilization, which is characterized in that: the thickness of the regenerated roadbed asphalt layer (1) is 17-20 cm.
4. The regeneration roadbed structure based on the solid waste full utilization, which is characterized in that: the impermeable layer (4) is laid by adopting geotechnical impermeable cloth, and the thickness of the impermeable layer (4) is 10-12 mm.
5. The regeneration roadbed structure based on the solid waste full utilization, which is characterized in that: the height of the fixed frame (31) is 15-20 cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120090188.9U CN214497037U (en) | 2021-01-14 | 2021-01-14 | Regeneration roadbed structure based on solid waste full utilization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120090188.9U CN214497037U (en) | 2021-01-14 | 2021-01-14 | Regeneration roadbed structure based on solid waste full utilization |
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| CN214497037U true CN214497037U (en) | 2021-10-26 |
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| CN202120090188.9U Active CN214497037U (en) | 2021-01-14 | 2021-01-14 | Regeneration roadbed structure based on solid waste full utilization |
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