Muck road base structure of solidified household garbage incinerator

Abstract

The utility model discloses a road base structure of solidified household garbage incinerator muck, and relates to the technical field of pavement structures. Comprising a base layer laid at the bottommost part, a lower reinforcing metal net is laid on the base layer, a plurality of flexible partition plates are vertically connected to the lower reinforcing metal net, a plurality of communicating holes are formed in the flexible partition plates, and the inner sides of the flexible partition plates above the lower reinforcing metal net are filled with a heavy slag base layer. The outer side of the flexible partition plate above the lower reinforcing metal net is filled with a light slag base layer, an upper reinforcing metal net is laid above the heavy slag base layer and the light slag base layer, and a surface layer is laid above the upper reinforcing metal net. According to the muck road base structure of the solidified household garbage incinerator, the problems that in the prior art, furnace slag utilization is limited, and road base performance is unstable are successfully solved, efficient utilization of the furnace slag is achieved, the road base performance is improved, stress distribution is optimized, the road building cost is reduced, and the purposes of environmental protection and sustainability are achieved. And the method has remarkable economic, social and environmental benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement structures, in particular to a solidified domestic waste incinerator slag road base structure. Background Art

[0002] At present, with the development of cities, the contradiction between the amount of urban domestic waste removal and the shortage of landfill capacity has become increasingly prominent. Incineration treatment is widely valued because of its significant reduction, but the domestic waste incineration slag produced is mainly disposed of by sanitary landfill, which has a certain impact on the environment and also makes the supply of sanitary landfill sites tight. Therefore, it is imperative to recycle the domestic waste incineration slag. At the same time, a large amount of engineering soil will be generated during the construction process due to foundation pit excavation, soil replacement, and cutting excavation. The main disposal method for engineering soil in road engineering is still mainly foundation pit backfilling and roadbed filling. This disposal method can only consume part of the engineering soil to a limited extent, with low utilization rate and added value, and cannot produce high economic benefits. Inorganic combined stabilizers are widely used in road base materials at home and abroad. Inorganic combined stabilizers are widely used in road base structures due to their high strength and good stability. However, the resources of road construction materials are becoming increasingly scarce, and the cost of materials is increasing, which seriously hinders the development of transportation infrastructure.

[0003] In the prior art, CN216275070U discloses a solidified domestic waste incinerator slag road base structure, comprising a road base layer laid at the bottom, the upper surface of the road base layer being paved with a pavement base structure, the pavement base structure comprising a solidified domestic waste incinerator slag road base structure laid on the upper surface of the road base layer, the upper surface of the solidified domestic waste incinerator slag road base structure being paved with a cement-stabilized gravel base layer; the upper surface of the cement-stabilized gravel base layer being paved with a pavement surface layer structure layer; the pavement surface layer structure layer comprising a coarse-grained asphalt concrete lower layer being paved on the upper surface of the cement-stabilized gravel base layer; the surface of the coarse-grained asphalt concrete lower layer being paved with a fine-grained asphalt concrete upper layer.

[0004] The above technical scheme realizes the utilization of waste incineration slag, but the quality range of the slag used is announced in the embodiment of the technical scheme, and the slag performance indicators are required to meet the following requirements: slag particle grading 9.5mm cumulative sieve residue 100%, 4.75mm cumulative sieve residue 80-95%, 0.075 cumulative sieve residue 5-15% is appropriate, slag apparent density ≥2.5, moisture content ≤10%, iron content <2%, light matter ≤0.2%, methylene blue value ≤25%, plasticity index ≤17.

[0005] The above technical solution has high requirements on the performance indicators of the incineration slag. The incineration slag in the prior art often contains a considerable amount of organic matter. GB / T 23529-2009 "Test Methods for Slag from Solid Waste Incineration", this national standard stipulates that the fuel content of the slag should be controlled below 5%. Therefore, some organic matter still remains in the incinerated slag. Since these organic matter and some porous brittle substances in the slag, the strength of the incineration slag is relatively low.

[0006] In the road structure, the area usually located in the middle of the road is affected by road marking. Motor vehicles or heavy trucks usually travel in the lane located in the middle. If incineration slag is directly used as the base layer, the road is prone to depression due to vehicle rolling after long-term use.

[0007] Therefore, there is a need for a solidified domestic waste incinerator slag road base structure that solves the above-mentioned problems. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model provides a road base structure of solidified domestic waste incinerator slag.

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a solidified domestic waste incineration furnace slag road base structure, characterized in that: it includes a base layer laid at the bottom, the base layer is laid with a lower reinforcing metal mesh, a plurality of flexible partitions are vertically connected on the lower reinforcing metal mesh, a plurality of connecting holes are opened on the flexible partitions, the inner side of the flexible partition above the lower reinforcing metal mesh is filled with a heavy slag base layer, the outer side of the flexible partition above the lower reinforcing metal mesh is filled with a light slag base layer, an upper reinforcing metal mesh is laid above the heavy slag base layer and the light slag base layer, and a surface layer is laid above the upper reinforcing metal mesh.

[0010] The lower part of the flexible partition is connected to the fixing ribs, and the fixing ribs are connected to the lower reinforcing metal mesh through binding wires. The flexible partition is made of rubber material.

[0011] The surface layer is made of asphalt pavement material.

[0012] The utility model has the following beneficial effects:

[0013] 1. Efficient use of slag resources: By reasonably dividing the heavy slag base and the light slag base, and selecting incineration slag of different densities and properties in a targeted manner to meet the needs of different road load-bearing areas, the utilization rate of slag is effectively improved, and the negative impact on the environment and landfill pressure are reduced.

[0014] 2. Improve the performance of road base: To address the problem of low strength caused by the organic content in slag, the overall strength and stability of the road base are enhanced through scientific proportions (such as cement, slag, gravel, water, etc.) and reasonable base structure design (such as layered settings, metal mesh reinforcement, flexible partition partitions, etc.), reducing the risk of dents caused by vehicle rolling over during long-term use.

[0015] 3. Optimize road stress distribution: The setting of flexible partitions and the design of connecting holes help to disperse and transfer road loads, making the internal stress of the road base more evenly distributed, further improving the durability and driving comfort of the road.

[0016] 4. Save the cost of road construction materials: By making full use of engineering soil and domestic waste incineration slag as base materials, it not only reduces the dependence on traditional road construction materials and alleviates the problem of resource shortage, but also significantly reduces the cost of road construction and improves economic benefits.

[0017] 5. Environmental protection and sustainability: The use of slag resources reduces the environmental pollution caused by landfill treatment. At the same time, the use of lime soil base (lime, fly ash, soil) or concrete base, as well as environmentally friendly asphalt pavement materials, is conducive to achieving environmental protection and sustainable development of road construction.

[0018] 6. The flexible partition will not hinder the compaction of the light slag base and the heavy slag base.

[0019] To sum up, the solidified domestic waste incineration furnace slag road base structure provided by the utility model successfully solves the problems of limited slag utilization and unstable road base performance in the prior art, realizes the efficient utilization of slag, improved road base performance, optimized stress distribution, reduced road construction costs, and environmental protection and sustainable goals, and has significant economic, social and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a side view of the flexible partition of the utility model;

[0022] In the figure: 1, lower pressure plate; 1-1, pressure plate; 1-2, clamping plate; 1-3, clamping head; 2, angle steel frame; 3, drop-in groove; 4, insulation board; 5, clamping groove; 6, guide groove; 7, mounting bolt; S, distance between the clamping groove and the bottom of the angle steel frame; α, angle between the guide groove and the bottom of the angle steel frame; β, angle between the clamping plate and the pressure plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] like Figure 1-Figure 2 As shown, a solidified domestic waste incineration furnace slag road base structure includes a base layer 6 laid at the bottom, a lower reinforcing metal mesh 5 is laid on the base layer 6, a plurality of flexible partitions 1 are vertically connected to the lower reinforcing metal mesh 5, and a plurality of connecting holes 2 are opened on the flexible partition 1, the inner side of the flexible partition 1 above the lower reinforcing metal mesh 5 is filled with a heavy slag base layer 10, and the outer side of the flexible partition 1 above the lower reinforcing metal mesh 5 is filled with a light slag base layer 4, an upper reinforcing metal mesh 3 is laid above the heavy slag base layer 10 and the light slag base layer 4, and a surface layer 9 is laid above the upper reinforcing metal mesh 3.

[0025] The lower part of the flexible partition 1 is connected to the fixing rib 7, and the fixing rib 7 is connected to the lower reinforcing metal mesh 5 through the binding wire 8. The flexible partition 1 is made of rubber material.

[0026] The surface layer 9 is made of asphalt pavement material.

[0027] During construction, the base layer 6 is first laid. The base layer 6 can be a lime-soil base layer or a concrete-cast base layer with lime accounting for 8%, fly ash accounting for 20%, and soil accounting for 72%. When the lime-soil base layer is used, it is laid layer by layer and compacted layer by layer. Then the reinforcing metal mesh 5 is placed, and the position of the flexible partition 1 is set according to the position of the load-bearing area and the less load-bearing area in the road. The fixed ribs 7 are fixed by the binding wire 8, and then the flexible partition 1 is fixed. Then the heavy slag base layer 10 and the light slag base layer 4 are filled. The heavy slag base layer 10 uses high-density slag that has been selected by air or water, and the proportion is, for example, cement: 12%-18% slag: 8%-12% crushed stone: 69%-79% water: 4%-6%. The lightweight slag base layer 4 is made of low-density slag that has been selected by air and water, or a mixture of low-density slag and ordinary slag, and the proportions are, for example, cement: 8% to 12% slag: 35% to 45% fine aggregate (such as sand): 25% to 35% stabilizer (such as lime, fly ash): 3% to 7% water: 13% to 17%. After filling, compaction is performed, and then the reinforcing metal mesh 3 is laid, and then the surface layer 9 is laid and compacted to complete the laying work.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A solidified domestic waste incinerator slag road base structure, characterized by: It includes a base layer laid at the bottom, on which a lower reinforcing metal mesh is laid, on which a plurality of flexible partitions are vertically connected, and on which a plurality of connecting holes are opened, the inner side of the flexible partition above the lower reinforcing metal mesh is filled with a heavy slag base layer, and the outer side of the flexible partition above the lower reinforcing metal mesh is filled with a light slag base layer, an upper reinforcing metal mesh is laid above the heavy slag base layer and the light slag base layer, and a surface layer is laid above the upper reinforcing metal mesh.

2. The solidified domestic waste incinerator slag road base structure according to claim 1, characterized in that: The lower part of the flexible partition is connected to the fixing ribs, and the fixing ribs are connected to the lower reinforcing metal mesh through binding wires. The flexible partition is made of rubber material.

3. A solidified domestic waste incinerator slag road base structure according to claim 1 or 2, characterized in that: The surface layer is made of asphalt pavement material.

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