Method and system for design optimization of solid waste road based on carbon reduction benefit and service performance

Abstract

The application relates to the technical field of road design optimization, and discloses a solid waste road design optimization method and system based on carbon reduction benefits and service performance, which comprises the following steps: acquiring and determining service performance indexes and carbon reduction benefit indexes of a solid waste road constructed by a solid waste scheme based on any solid waste scheme; wherein the solid waste scheme refers to a design scheme in which road building materials prepared from solid waste are used in road design; a selection optimization objective function for analyzing the solid waste scheme is designed; a basic index of a conventional scheme for selection optimization comparison is determined; wherein the conventional scheme refers to a design scheme in which road building materials prepared from solid waste are not used in road design; based on the service performance indexes and the carbon reduction benefit indexes of each solid waste scheme, the selection optimization objective function and the basic index are combined, and each solid waste scheme is selected as a result of solid waste road design optimization, so that an optimal design of a solid waste road project considering service performance, green low carbon and construction cost is achieved.

Description

Technical Field

[0001] This application relates to the field of road design optimization technology, specifically a solid waste road design optimization method and system based on carbon reduction benefits and service performance. Background Technology

[0002] Solid waste, such as industrial tailings, smelting slag, construction waste, and road waste, has an annual output exceeding 100 billion tons and continues to grow. If such a massive amount of solid waste is not utilized, it will not only occupy land but also cause environmental problems such as soil and water pollution. Road engineering, including roadbed and pavement engineering, bridge engineering, and tunnel engineering, has gradually become an important scenario for the resource utilization of solid waste due to its large scale and the large amount of building materials required during construction and maintenance. Using recycled solid waste building materials in road engineering not only achieves high-value-added applications of solid waste but also saves a large amount of raw materials, such as cement, asphalt, and aggregates.

[0003] In the resource utilization of solid waste in road engineering, there is often a focus solely on the performance indicators or long-term service life of recycled building materials, while neglecting the benefits in terms of carbon emissions. Cement, as an energy-intensive industry, and asphalt production have consistently high carbon emissions, and the carbon reduction potential of using solid waste to replace traditional building materials has not been fully explored. Furthermore, the carbon footprint of recycled solid waste materials is untraceable, making it impossible to definitively determine the carbon reduction achieved by using such materials.

[0004] Given the current scarcity of design methods for multi-source solid waste road engineering that comprehensively consider both carbon reduction benefits and service performance, it is necessary to design an optimized technical solution for multi-source solid waste road engineering that takes into account both carbon reduction benefits and service performance in order to address the aforementioned technical issues. Summary of the Invention

[0005] To address the aforementioned issues, the purpose of this application is to provide a method and system for optimizing solid waste road design based on carbon reduction benefits and service performance, so as to achieve the optimal design of solid waste road engineering after taking into account service performance, green and low-carbon features, and construction costs, i.e., the optimal solid waste solution.

[0006] To achieve the above objectives, this application provides a solid waste road design optimization method based on carbon reduction benefits and service performance, comprising: Obtain and, based on any solid waste scheme, determine the service performance indicators and carbon reduction benefit indicators of solid waste roads constructed using the solid waste scheme; wherein, a solid waste scheme refers to a design scheme that uses road construction materials made from solid waste in the road design. Design an objective function for analyzing solid waste disposal schemes; determine a basic index for comparing conventional schemes; wherein, conventional schemes refer to road construction materials that are not made from solid waste in road design. Based on the service performance indicators and carbon reduction benefit indicators of each solid waste scheme, and combined with the optimization objective function and basic indicators, the optimal scheme is selected from among the various solid waste schemes as the result of solid waste road design optimization.

[0007] Preferably, the service performance indicators are determined based on the maintenance frequency during the operation period, which is determined based on the service life of the solid waste scheme and the preset service life of the solid waste road.

[0008] Preferably, the carbon reduction benefit index is determined based on the carbon emission reduction generated by the solid waste program and the preset carbon price.

[0009] Preferably, the carbon emission reduction is determined based on the first carbon emission reduction during the construction period and the second carbon emission reduction during the operation period of the solid waste road.

[0010] Preferably, the comparison object for the first carbon emission reduction is the carbon emission corresponding to the conventional scheme during the construction period; wherein, the carbon emission during the construction period is determined based on the raw material production stage, raw material transportation stage, mixture production stage, mixture transportation stage and on-site construction stage of the construction period.

[0011] Preferably, the comparison object for the second carbon emission reduction is the carbon emission of the conventional scheme during the operation period; wherein, the carbon emission during the operation period is determined at least based on the service performance indicators and the preset single carbon emission corresponding to a single maintenance.

[0012] Preferably, the objective function for selecting the optimal solution is based on a comparison of the service performance indicators and carbon reduction benefit indicators of the solid waste solution with the basic indicators of the conventional solution, and analyzes each solid waste solution to determine the optimal solid waste solution.

[0013] Preferably, the determination of the optimal solid waste treatment scheme includes: Based on service performance indicators and carbon reduction benefit indicators, the total investment savings for each solid waste scheme over its entire life cycle are determined. The optimal solid waste scheme is determined based on the maximum total investment savings over its entire life cycle. The entire life cycle includes the construction period and the operation period.

[0014] Preferably, the determination of the first carbon emission reduction and the second carbon emission reduction is based on a pre-set regional carbon emission factor database.

[0015] To achieve the above objectives, this application also provides a solid waste road design optimization system based on carbon reduction benefits and service performance, which applies the solid waste road design optimization method based on carbon reduction benefits and service performance as described above, including: The indicator analysis module is used to acquire and determine the service performance indicators and carbon reduction benefit indicators of solid waste roads constructed using any solid waste scheme; where a solid waste scheme refers to a design scheme that uses road construction materials made from solid waste in the road design. The optimization setting module is used to design the objective function for analyzing solid waste solutions; and to determine the basic indicators of a conventional solution for optimization comparison; wherein, the conventional solution refers to the design scheme that does not use road construction materials made from solid waste in road design. The design optimization module is used to select the best solid waste road design optimization result from various solid waste schemes based on their service performance indicators and carbon reduction benefit indicators, combined with the selection objective function and basic indicators.

[0016] Beneficial effects: The solid waste road design optimization method and system based on carbon reduction benefits and service performance of this application can select the optimal design of solid waste road projects in terms of service performance, green and low carbon emissions, and construction costs, taking into account carbon reduction benefits and service performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of the solid waste road design optimization method based on carbon reduction benefits and service performance provided in this embodiment; Figure 2 This is a schematic diagram illustrating the relationship between the service performance and maintenance frequency of solid waste roads provided in this embodiment; Figure 3 This is a structural block diagram of the solid waste road design optimization method based on carbon reduction benefits and service performance provided in this embodiment.

[0019] The implementation, functional features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] To address the problems existing in the application of solid waste (SW) in road engineering, this embodiment discloses a method and system for optimizing solid waste road design based on carbon reduction benefits and service performance. In summary, this embodiment is a technical solution for optimizing the design of multi-source solid waste road engineering considering both carbon reduction benefits and service performance. First, the service life is determined by the fatigue equation of recycled solid waste building materials determined through on-site road monitoring data or indoor tests, and the maintenance investment is determined by combining the number of maintenance required within the design service year. Next, a database of carbon emission factors of recycled solid waste building materials and road engineering construction is established within the region. Carbon emissions during the construction and operation periods are calculated separately, and the economic benefits of carbon reduction are calculated in conjunction with carbon prices. Finally, by summarizing and optimizing the investment during the construction period, the maintenance investment during the operation period, and the carbon reduction throughout the life cycle, the monetary benefits of the multi-source solid waste road design scheme are determined throughout its entire life cycle. This embodiment achieves the low-carbon utilization of solid waste in road engineering and avoids the drawbacks of low investment during the construction period but frequent maintenance during the operation period that may exist with recycled solid waste building materials, thus achieving an optimal balance between service performance, green and low-carbon development, and construction costs in solid waste road engineering.

[0023] The solid waste road design optimization method and system based on carbon reduction benefits and service performance in this embodiment will now be described.

[0024] Reference Figure 1 , Figure 1 This is a flowchart illustrating the solid waste road design optimization method based on carbon reduction benefits and service performance provided in this embodiment.

[0025] like Figure 1 As shown, in a first aspect, this embodiment discloses a solid waste road design optimization method based on carbon reduction benefits and service performance, including: S10: Obtain and, based on any solid waste scheme, determine the service performance indicators and carbon reduction benefit indicators of the solid waste road constructed by the solid waste scheme; wherein, the solid waste scheme refers to the design scheme that uses road construction materials made from solid waste in the road design.

[0026] Service performance indicators are evaluation parameters used to assess the load-bearing capacity and traffic function of a road structure during its service life. Existing technologies for evaluating service performance typically employ static testing methods, including indoor material testing, on-site structural inspection, and pavement distress level assessment, for roads constructed with conventional building materials. However, it is evident that this evaluation system is overly cumbersome and unsuitable for the evaluation scenario of roads constructed with solid waste-derived building materials. Therefore, this embodiment proposes a calculation scheme for service performance indicators based on the frequency of maintenance during the operational period.

[0027] Specifically, the service performance indicators are determined based on the maintenance frequency during the operation period, which is based on the service life of the solid waste scheme and the preset service life of the solid waste road.

[0028] Reference Figure 2 , Figure 2 This is a schematic diagram illustrating the relationship between the service performance and maintenance frequency of solid waste roads provided in this embodiment.

[0029] like Figure 2 As the road age increases, the road engineering condition continues to deteriorate. When the performance drops to the lowest acceptable level, maintenance work is required. The performance degradation rate of the solid waste scheme and the conventional scheme are different, resulting in maintenance cycles of varying lengths. The better the service performance, the longer the interval between two maintenance sessions and the fewer maintenance sessions are required throughout the entire cycle. Therefore, it is reasonable to use the maintenance frequency during the operation period to characterize the service performance index.

[0030] In a specific application of this embodiment, determining service performance indicators based on the maintenance frequency during the operation period may include: Refer to Table 1 for solid waste selection. Based on the type of road construction material prepared from solid waste and the application scenario, select the appropriate solid waste type and blending ratio. Road construction material types can include recycled concrete, recycled asphalt mixtures, recycled inorganic binder stabilized materials, and recycled graded crushed stone. Application scenarios can include surface layers, base / subbase layers, roadbeds, bridge piers, bridge spans, tunnel linings, tunnel pavements, and tunnel portals. In practice, the performance indicators of recycled solid waste construction materials must be obtained through indoor testing or testing by a third-party testing agency, and all indicators must not be lower than the technical requirements of industry standards.

[0031] Table 1 Solid Waste Selection Recommendation Table Based on the mix design results of recycled solid waste building materials that meet all performance indicators, and combined with the actual project workload, calculate the amount of natural building materials required in the recycled solid waste building materials. The amount of recycled solid waste building materials used ,in, Indexes representing different types of natural raw materials. Indexes representing different types of solid waste raw materials.

[0032] Fatigue equations or strength degradation equations for natural building materials and solid waste building materials can be obtained using existing indoor testing techniques; or performance degradation models for natural building materials and solid waste building materials can be obtained using field monitoring data, and the service life of non-solid waste conventional solutions can be determined using relevant existing models, such as machine learning-based life prediction models. Service life of solid waste solutions And according to the design service life of the road project Calculate the number of maintenance and repairs required throughout the entire operation period of the standard solution. The number of maintenance and repairs required throughout the entire operation period of the solid waste solution. Correspondingly, the expression can be: Thus, this embodiment has achieved a result based on and It enables quantitative analysis of maintenance frequency based on the operation period for both conventional and solid waste solutions, providing a data foundation for the analysis of solid waste solutions.

[0033] With the increasing demand for carbon emission management, the carbon reduction potential of traditional, conventional solutions has been largely exhausted. In existing technologies, the design optimization of solid waste solutions generally focuses on analyzing service performance. It is well known that solid waste solutions inherently bring carbon reduction potential; therefore, design optimization of solid waste solutions can further unlock this potential. Thus, this embodiment designs an optimization scheme for solid waste solutions that jointly considers service performance and carbon reduction effects.

[0034] For the analysis of carbon reduction effect in the design and optimization of solid waste solutions, specifically, the carbon reduction benefit index is determined based on the carbon emission reduction generated by the solid waste solution and the preset carbon price.

[0035] This embodiment optimizes carbon emission reduction for the entire life cycle of solid waste roads, including the construction and operation phases.

[0036] Specifically, the carbon emission reduction is determined based on the first carbon emission reduction during the construction period and the second carbon emission reduction during the operation period of the solid waste road.

[0037] In response to the calculation of carbon emissions from solid waste road engineering projects in different regions, this embodiment optimizes the carbon emission factor database used for the calculation.

[0038] Specifically, the determination of the first carbon emission reduction and the second carbon emission reduction is based on a pre-set regional carbon emission factor database.

[0039] In this specific application, a carbon emission factor database is collected and established within the area where the solid waste road project is located. This database includes carbon emissions from the production stages of solid waste building materials and natural building materials, carbon emissions from various energy sources, and carbon emissions from construction machinery. The data in the database needs to be compared with carbon emission factor benchmark values. When the collected data exceeds a preset threshold compared to the benchmark value, further comparative analysis is required to ensure the reliability of the carbon emission factors. The benchmark values ​​can be obtained from databases such as CLCD, Ecoinvent, and Gabi.

[0040] For the production stage, this embodiment installs monitoring meters and fuel consumption sensors at the solid waste disposal plant to collect data on the energy consumption types and unit capacity energy consumption of the solid waste disposal equipment; it also installs fuel consumption sensors, GPS devices, and weighing sensors on solid waste transport vehicles to collect data on vehicle energy consumption types, unit transport volume energy consumption, transport trajectory, and transport distance; and it installs energy consumption monitoring sensors on construction equipment to collect data on the energy consumption types of construction machinery and energy consumption per shift. The collected data is then transmitted to a cloud data processing center for data cleaning.

[0041] Therefore, the first carbon emission reduction determination scheme of this embodiment is as follows.

[0042] Specifically, the first carbon emission reduction is compared with the carbon emission of the conventional scheme during the construction period; wherein, the carbon emission during the construction period is determined based on the raw material production stage, raw material transportation stage, mixture production stage, mixture transportation stage and on-site construction stage of the construction period.

[0043] In the specific application of this embodiment, based on the project workload, carbon emission factor, mechanical energy consumption data, solid waste substitution rate, etc., the first carbon emission reduction during the construction period compared to the conventional approach is calculated. The first carbon emission reduction during the construction period corresponds to five stages: raw material production, raw material transportation, mixture production, mixture transportation, and on-site construction. The corresponding expression can be: in, This refers to the total carbon emissions during the construction phase of a conventional non-solid waste treatment scheme. This refers to the total carbon emissions of the solid waste project during the construction phase. This represents the calculated initial carbon emission reduction during the construction period. In practical applications, the initial carbon emission reduction is subject to a non-negativity constraint, i.e. .

[0044] As a preferred embodiment of this invention, Corresponding to the five stages of the construction period, its expression can be: in, For the carbon emissions during the raw material production phase of the conventional construction project, For the carbon emissions during the raw material transportation phase of the conventional construction project, For the carbon emissions of conventional schemes during the mixture production stage of the construction period, For the carbon emissions of conventional solutions during the mixed material transportation phase of the construction period, This represents the carbon emissions during the on-site construction phase of the conventional construction plan. Summing these figures yields the total carbon emissions of the conventional construction plan during the construction period. It should be noted that the carbon emission calculations for conventional schemes at various stages of the construction period can be based on existing carbon emission analysis methods, and this embodiment does not impose any restrictions on this.

[0045] As a preferred embodiment of this invention, Corresponding to the five stages of the construction period, its expression can be: in, This refers to solid waste replacement solutions. For example, in this embodiment, the solid waste replacement rates in solid waste solution one and solid waste solution two are different. It is a function of transport distance. For the carbon emissions of the solid waste project during the raw material production phase of the construction period, For the carbon emissions of the solid waste project during the raw material transportation phase of the construction period, For the carbon emissions of the solid waste project during the mixed material production stage of the construction phase, For the carbon emissions of the solid waste project during the mixed material transportation phase of the construction period, This represents the carbon emissions of the solid waste treatment project during the on-site construction phase. The total carbon emissions of the solid waste treatment project during the construction phase are then summed to obtain the total carbon emissions of the project. .

[0046] In the application of this embodiment, Constrained by a preset constraint function, which is specifically: the first constraint condition. Second constraint In this context, based on different application scenarios in Table 1 or other reasonable application schemes, the first constraint selects the type of solid waste with the greatest carbon emission reduction benefits for application; then, the second constraint limits the upper limit of the solid waste content. This is a service life reduction threshold determined based on empirical values ​​or fitting.

[0047] In a specific application, this embodiment combines traffic simulation software such as Vissim to simulate the transportation routes and traffic organization methods of raw materials and mixtures to determine the corresponding transportation distances. Then, the corresponding preset mathematical expressions are substituted into the data: in: These correspond sequentially to the raw material production stage, raw material transportation stage, mixture production stage, mixture transportation stage, and on-site construction stage during the construction period; For the production of the first Carbon emission factors of natural building materials; For the production of the first Carbon emission factors of solid waste building materials; For the first stage of transportation or construction Carbon emission factors of various energy consumption types, including but not limited to electricity, diesel, gasoline, and coal.

[0048] Thus, this embodiment completes the quantification of the first carbon emission reduction during the construction period, providing a data foundation for the carbon reduction benefit analysis of the solid waste scheme.

[0049] This embodiment also optimizes the second carbon emission reduction during the operational phase throughout the entire life cycle. In response to the aforementioned design concept of quantifying service performance using maintenance frequency during the operational phase, the analysis of the second carbon emission reduction in this embodiment is also related to service performance.

[0050] Specifically, the comparison object for the second carbon emission reduction is the carbon emission of the conventional scheme during the operation period; wherein, the carbon emission during the operation period is determined at least based on the service performance indicators and the preset single carbon emission corresponding to a single maintenance.

[0051] In the specific application of this embodiment, based on the maintenance plan, carbon emission factors, mechanical energy consumption data, etc., the second carbon emission reduction of the maintenance project using the solid waste plan compared to the conventional plan is calculated during the operation period. .

[0052] in: It is the total carbon emissions of maintenance projects using conventional methods within the design service life; This refers to the total carbon emissions from solid waste disposal during the maintenance process within the design service life. Combined with the aforementioned maintenance frequency during the operational period, this implementation... and The corresponding expression can be: in, and These are the number of maintenance operations required within the design service life of the maintenance project using the conventional and solid waste solutions, respectively, calculated above; that is, the maintenance frequency during the operation period. and These are the single-cycle carbon emissions for maintenance projects using conventional and solid waste management methods, respectively. These single-cycle carbon emissions can be obtained based on existing carbon emission analysis methods for maintenance projects.

[0053] Thus, this embodiment completes the analysis of carbon emission reductions during the operation period, providing a data foundation for the analysis of carbon reduction benefits throughout the entire life cycle of solid waste roads.

[0054] S20: Design an objective function for analyzing solid waste solutions; determine a basic index for comparing conventional solutions; wherein, conventional solutions refer to road construction materials not made from solid waste in road design.

[0055] Specifically, the objective function for selecting the optimal solution is based on a comparison of the service performance indicators and carbon reduction benefit indicators of the solid waste solution with the basic indicators of the conventional solution. This analysis is used to determine the optimal solid waste solution.

[0056] As a preferred embodiment of this invention, the determination of the optimal solid waste solution includes: Based on service performance indicators and carbon reduction benefit indicators, the total investment savings for each solid waste scheme over its entire life cycle are determined. The optimal solid waste scheme is determined based on the maximum total investment savings over its entire life cycle. The entire life cycle includes the construction period and the operation period.

[0057] In the specific application of this embodiment, the total investment savings over the entire life cycle Project construction investment difference during the construction period Difference in total investment for maintenance during the operation period Carbon reduction benefits during the construction period Carbon reduction benefits during operation Sure.

[0058] For the difference in project construction investment during the construction period The corresponding expression can be: in, It is the construction investment of the conventional plan. This refers to the investment in solid waste treatment solutions. In practice, Subject to nonnegativity constraint, i.e. In practical applications, the methods and data for calculating construction investment can be found in the project's preliminary estimate documents, budget documents, or bill of quantities budget documents. Construction investment may include labor costs, material costs, construction machinery usage fees, and construction-related measures fees, etc.

[0059] Difference in total maintenance investment during the operation period The corresponding expression can be: in, and These are the single maintenance investments for the conventional scheme and the solid waste scheme, respectively. The method for determining the single maintenance investment is the same as that for the construction investment.

[0060] In response to the aforementioned carbon reduction benefit indicators being determined based on the carbon emission reductions resulting from the solid waste disposal scheme and a preset carbon price, this embodiment adopts a carbon price... It can come from the CCER trading system or the carbon emission trading center system in Shanghai, Beijing and other places.

[0061] Carbon reduction benefits during the construction period The corresponding expression could be: Carbon reduction benefits during operation The corresponding expression could be: Thus, this embodiment completes the determination of the total investment savings over the entire life cycle. All necessary data analysis.

[0062] In response to the aforementioned determination of the maximum value of total investment savings over the entire life cycle to identify the optimal solid waste disposal solution, the objective function for this embodiment can be expressed as follows: in, This indicates that the maximum value is selected.

[0063] Thus, this embodiment provides a complete technical solution for the optimal design of solid waste roads based on solid waste management.

[0064] S30: Based on the service performance indicators and carbon reduction benefit indicators of each solid waste scheme, and combined with the optimization objective function and basic indicators, the optimal scheme is selected from among the various solid waste schemes as the result of solid waste road design optimization.

[0065] The implementation and technical effects of the solid waste road design optimization based on carbon reduction benefits and service performance in this embodiment will now be explained with specific examples.

[0066] A typical two-way four-lane expressway has a pavement structure from top to bottom of: 4cm asphalt mixture AC-13 + 6cm asphalt mixture AC-20 + 8cm asphalt mixture AC-25 + 18cm cement-stabilized crushed stone + 18cm cement-stabilized crushed stone. The corresponding preparatory work includes determining regional carbon emission factors. In this embodiment, carbon emission factors for solid waste raw materials and natural raw materials, as well as carbon emission factors for various energy consumptions, were collected within the Hunan region, as shown in Table 2.

[0067] Table 2 Carbon emission factors of materials and energy consumption within the region Specifically, the implementation of solid waste road design optimization based on carbon reduction benefits and service performance in this embodiment includes: Step 1: Determining the service performance of solid waste roads, including: Based on the recommended solid waste types in Table 1 and the types of solid waste resources in the region, a solid waste utilization plan is proposed. The constraints were used to obtain the solid waste type and upper limit of solid waste content for each structural layer of the pavement, as shown in Table 3.

[0068] Table 3 Material selection analysis for each structural layer under constraints For the intermediate and lower layers, the carbon emission reduction benefit of steel slag replacing natural aggregate is (2.6-2.0) ÷ 2.6 = 23.1%; the carbon emission reduction benefit of RAP (RAP with 4% asphalt content) replacing natural aggregate and asphalt is [(309.8×4%+2.6×96%)-3.8] ÷ (309.8×4%+2.6×96%) = 74.5%. Therefore, RAP is the preferred solid waste type for the intermediate and lower layers. For the upper and lower base layers, the carbon emission reduction benefit of steel slag replacing natural aggregate is (2.6-2.0) ÷ 2.6 = 23.1%; the carbon emission reduction benefit of brick-concrete aggregate replacing natural aggregate is (2.6-1.9) ÷ 2.6 = 26.9%. Therefore, brick-concrete aggregate is the preferred solid waste type for the upper and lower base layers.

[0069] Based on the constraints and the requirement that the road performance of the recycled solid waste building materials in each structural layer meets the specifications, two schemes are proposed in this embodiment, as shown in Table 4.

[0070] Table 4 Solid Waste Road Structure Scheme Based on the two preliminary solid waste road structure schemes proposed in this embodiment, and combined with various solid waste admixture amounts and project engineering quantities, the usage of various solid waste building materials and natural building materials is calculated, as shown in Table 5.

[0071] Table 5 Solid Waste Road Structure Scheme: Consumption of Solid Waste Raw Materials and Natural Raw Materials By collecting on-site monitoring data of pavement structures with the same amount of solid waste, the maintenance cycles of solid waste scheme 1, solid waste scheme 2, and conventional scheme were determined to be 7.3 years, 6.2 years, and 8.0 years, respectively. Based on the design service life of 15 years for road engineering, the number of maintenance and repairs required during the entire operation period were calculated to be 2.05 times, 2.42 times, and 1.88 times, respectively.

[0072] Step 2: Calculation of carbon emissions from solid waste road construction projects, including: Sensors are installed in the mixing plant and on-site construction machinery to collect the energy consumption of the machinery used in each construction process, and the data is transmitted to the data center for processing and aggregation.

[0073] Calculate the carbon emissions during the construction period for both the conventional and solid waste-related schemes. The carbon emissions for Solid Waste Scheme 1, Solid Waste Scheme 2, and the conventional scheme are as follows: , , Compared to conventional solutions, solid waste solution one reduces carbon emissions. Solid waste option two reduces carbon emissions .

[0074] The maintenance plan involves milling and repaving the top and middle layers, with the same type of aggregate used in the repaving as during the construction phase. The calculated carbon emissions per maintenance cycle for Solid Waste Plan 1, Solid Waste Plan 2, and the conventional plan are 414.9 kJ / kg. 399.3 473.5 Over a 15-year design lifespan, the total carbon emissions for maintenance under Solid Waste Scheme 1, Solid Waste Scheme 2, and the conventional scheme are 850.5 kilowatts each. 966.3 890.2 Compared to conventional solutions, the first solution for solid waste management during the operation and maintenance phase reduces carbon emissions by 39.7%. Solid waste option two increases carbon emissions by 76.1%. .

[0075] Step 3: Engineering design optimization of solid waste roads, including: The construction investment for Solid Waste Scheme 1, Solid Waste Scheme 2, and the conventional scheme was calculated, and the results were 8.285 million yuan, 7.584 million yuan, and 8.987 million yuan, respectively. Compared with the conventional scheme, Solid Waste Scheme 1 saves 702,000 yuan in investment; Solid Waste Scheme 2 saves 1.403 million yuan in investment.

[0076] The calculated single-use maintenance investment for Solid Waste Scheme 1, Solid Waste Scheme 2, and the conventional scheme are RMB 3.484 million, RMB 3.191 million, and RMB 3.777 million, respectively. Over the design service life of 15 years, the total maintenance investment for Solid Waste Scheme 1, Solid Waste Scheme 2, and the conventional scheme are RMB 7.142 million, RMB 7.722 million, and RMB 7.101 million, respectively. Compared to the conventional scheme, Solid Waste Scheme 1 saves RMB 41,000 in maintenance investment; Solid Waste Scheme 2 saves RMB 621,000.

[0077] The survey yielded a carbon price of 72 yuan / t. The carbon emission reduction benefits of solid waste scheme 1 and solid waste scheme 2 during the construction period were calculated to be 252.9 × 72 ÷ 10000 = 18,200 yuan and 306.5 × 72 ÷ 10000 = 22,100 yuan, respectively.

[0078] The carbon emission reduction benefits of the maintenance project during the operation period of Solid Waste Scheme 1 and Solid Waste Scheme 2 are calculated to be 39.7×72÷10000=0.29 million yuan and -76.1×72÷10000=-0.55 million yuan, respectively.

[0079] Calculate the total investment savings over the entire life cycle of road projects using Solid Waste Scheme 1 and Solid Waste Scheme 2 compared to conventional schemes. The results are shown in Table 6. Based on the calculation results, solid waste scheme two is better.

[0080] Table 6 Total Investment Savings Over the Entire Life Cycle Thus, the solid waste road design optimization method based on carbon reduction benefits and service performance in this embodiment has completed the optimization design of solid waste road scheme that combines carbon reduction benefits and service performance.

[0081] Reference Figure 3 , Figure 3 This is a structural block diagram of the solid waste road design optimization system based on carbon reduction benefits and service performance provided in this embodiment; in the diagram: 10, index analysis module; 20, optimal setting module; 30, design optimization module.

[0082] like Figure 3 As shown, this embodiment also discloses a solid waste road design optimization system based on carbon reduction benefits and service performance, applying the solid waste road design optimization method based on carbon reduction benefits and service performance as described above, including: The indicator analysis module 10 is used to acquire and determine the service performance indicators and carbon reduction benefit indicators of solid waste roads constructed using any solid waste scheme; wherein, the solid waste scheme refers to the design scheme that uses road building materials made from solid waste in the road design.

[0083] The optimization setting module 20 is used to design the optimization objective function for analyzing solid waste schemes; and to determine the basic indicators of a conventional scheme for optimization comparison; wherein, the conventional scheme refers to the design scheme of road construction materials not made from solid waste in road design.

[0084] The design optimization module 30 is used to select the best solid waste road design optimization result from various solid waste schemes based on their service performance indicators and carbon reduction benefit indicators, combined with the selection objective function and basic indicators.

[0085] It should be noted that the solid waste road design optimization system based on carbon reduction benefits and service performance in this embodiment corresponds to the aforementioned solid waste road design optimization method based on carbon reduction benefits and service performance. Therefore, any content not specifically described in the solid waste road design optimization system based on carbon reduction benefits and service performance in this embodiment, including but not limited to functional definitions, working principles, and technical effects, can be referred to the description in the aforementioned solid waste road design optimization method based on carbon reduction benefits and service performance, and will not be repeated here.

[0086] In summary, the solid waste road design optimization method and system based on carbon reduction benefits and service performance in this embodiment have the following advantages and beneficial effects compared with the prior art: By linking service performance with the number of maintenance cycles during operation through fatigue equations obtained from indoor tests or on-site road monitoring data, the service performance of recycled solid waste building materials can be ensured simply by controlling maintenance investment within the design service life, effectively avoiding frequent maintenance of solid waste roads due to rapid performance degradation.

[0087] By collecting relevant data within the region, a database of carbon emission factors for recycled building materials from solid waste and a database of road construction projects can be established. This allows for the calculation of carbon emissions during the construction and operation phases of maintenance projects. Furthermore, by combining carbon pricing, the carbon emission reduction benefits during the construction and operation phases can be converted into monetaryly measurable economic indicators, making the analysis more intuitive and convenient for comparison.

[0088] The optimization objective function is simple and easy to understand. By summarizing and calculating the investment during the construction period, the maintenance investment during the operation period, and the carbon emission reduction benefits throughout the entire life cycle of conventional and solid waste schemes, the solid waste road design scheme with the greatest overall benefit is selected, realizing the best solution for solid waste road engineering in terms of service performance, green and low carbon emissions, and construction cost.

[0089] In the embodiments provided in this application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code, or any suitable combination thereof. For hardware implementation, the processor may be implemented in one or more of the following: application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, other electronic units designed to implement the functions described herein, or combinations thereof. For software implementation, some or all of the processes of the embodiments may be performed by a computer program instructing the associated hardware. During implementation, the program may be stored in a computer-readable storage medium or transmitted as one or more instructions or code on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein communication media include any medium that facilitates the transmission of a computer program from one place to another. Storage media may be any available medium accessible to a computer. Computer-readable storage media may include, but are not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code having the form of instructions or data structures and accessible to a computer.

[0090] Finally, it should be noted that the above description is only a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for optimizing solid waste road design based on carbon reduction benefits and service performance, characterized in that, include: Obtain and, based on any solid waste scheme, determine the service performance indicators and carbon reduction benefit indicators of solid waste roads constructed using the solid waste scheme; wherein, a solid waste scheme refers to a design scheme that uses road construction materials made from solid waste in the road design. Design an objective function for analyzing solid waste disposal schemes; determine a basic index for comparing conventional schemes; wherein, conventional schemes refer to road construction materials that are not made from solid waste in road design. Based on the service performance indicators and carbon reduction benefit indicators of each solid waste scheme, and combined with the optimization objective function and basic indicators, the optimal scheme is selected from among the various solid waste schemes as the result of solid waste road design optimization.

2. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 1, characterized in that, The service performance indicators are determined based on the maintenance frequency during the operation period, which is based on the service life of the solid waste scheme and the preset service life of the solid waste road.

3. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 1, characterized in that, The carbon reduction benefit index is determined based on the carbon emission reduction generated by the solid waste program and the preset carbon price.

4. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 3, characterized in that, The carbon emission reduction is determined based on the first carbon emission reduction during the construction phase and the second carbon emission reduction during the operation phase of the solid waste road.

5. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 4, characterized in that, The first carbon emission reduction is compared with the carbon emission of conventional schemes during the construction period; wherein, the carbon emission during the construction period is determined based on the raw material production stage, raw material transportation stage, mixture production stage, mixture transportation stage and on-site construction stage of the construction period.

6. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 4, characterized in that, The comparison object for the second carbon emission reduction is the carbon emission of the conventional scheme during the operation period; wherein, the carbon emission during the operation period is determined at least based on the service performance indicators and the preset single carbon emission corresponding to a single maintenance.

7. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 1, characterized in that, The objective function for selecting the optimal solution is based on a comparison of the service performance indicators and carbon reduction benefit indicators of the solid waste solution with the basic indicators of the conventional solution. This analysis is used to determine the optimal solid waste solution.

8. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 7, characterized in that, The determination of the optimal solid waste treatment plan includes: Based on service performance indicators and carbon reduction benefit indicators, the total investment savings for each solid waste scheme over its entire life cycle are determined. The optimal solid waste scheme is determined based on the maximum total investment savings over its entire life cycle. The entire life cycle includes the construction period and the operation period.

9. The solid waste road design optimization method based on carbon reduction benefits and service performance according to claim 4, characterized in that, The determination of the first carbon emission reduction and the second carbon emission reduction is based on a pre-set regional carbon emission factor database.

10. A solid waste road design optimization system based on carbon reduction benefits and service performance, employing the solid waste road design optimization method based on carbon reduction benefits and service performance as described in any one of claims 1 to 9, characterized in that, include: The indicator analysis module is used to acquire and determine the service performance indicators and carbon reduction benefit indicators of solid waste roads constructed using any solid waste scheme; where a solid waste scheme refers to a design scheme that uses road construction materials made from solid waste in the road design. The optimization setting module is used to design the objective function for analyzing solid waste solutions; and to determine the basic indicators of a conventional solution for optimization comparison; wherein, the conventional solution refers to the design scheme that does not use road construction materials made from solid waste in road design. The design optimization module is used to select the best solid waste road design optimization result from various solid waste schemes based on their service performance indicators and carbon reduction benefit indicators, combined with the selection objective function and basic indicators.

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