Railway engineering construction rapid grading targeting carbon control evaluation system and carbon reduction evaluation method

Abstract

The invention relates to the technical field of railway engineering carbon control and carbon reduction, in particular to a railway engineering construction rapid grading targeted carbon control evaluation system and a carbon reduction evaluation method. The method comprises the following steps: S1, based on railway engineering data, establishing a three-dimensional engineering model by using a BIM technology for accounting carbon emission; s2, based on the carbon emission amount obtained in the S1, sorting the carbon emission amount through a sorting algorithm to obtain a key carbon emission source, taking the key carbon emission source as a carbon reduction target, and formulating a carbon reduction measure; and S3, based on the real-time carbon emission condition, dynamically adjusting the carbon control target by adopting a feedback adjustment mechanism. The BIM technology is combined to automatically extract data such as building material consumption, specifications and quantity to identify and evaluate a carbon emission source, errors caused by manual calculation are avoided, and the precision of carbon emission accounting and the convenience of operation are improved by adopting standardized transportation distance and construction equipment quota; and engineering management personnel can conveniently concentrate power to carry out carbon control work.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon control and reduction, and in particular to a rapid hierarchical targeted carbon control assessment system and a carbon reduction assessment method for railway engineering construction. Background Art

[0002] Railway tunnels consume a lot of resources and energy during their construction and use, and emit a lot of greenhouse gases to the external environment. It is particularly important to evaluate the impact of railway tunnels on the environment and to study the quantitative method of carbon emissions during the construction period of railway tunnel projects. In order to achieve the development of railway tunnel construction in a green and low-carbon direction, the country emphasizes environmental protection and sustainable development as the starting point, and through innovative technologies and design methods, reduces the negative impact on the environment and energy and achieves higher resource utilization efficiency.

[0003] Traditional methods lack precision in calculating the consumption of major building materials (such as concrete and steel) and their carbon emissions, and are unable to fully consider carbon emissions during transportation, resulting in inaccurate carbon footprint assessment results; most current methods are unable to carefully classify different carbon emission sources in the construction process, and are unable to quickly identify major carbon emission sources, resulting in a lack of focus and specificity in the setting of carbon control targets; existing technologies make it difficult to systematically combine the embodied carbon in building materials, transportation carbon, and construction carbon (including carbon emissions from the use of machinery and equipment and indirect emissions from electricity) for comprehensive analysis, which in turn affects the setting and implementation of overall carbon control targets.

[0004] Therefore, a rapid hierarchical targeted carbon control assessment system and a carbon reduction assessment method for railway engineering construction are provided. Summary of the invention

[0005] The purpose of the present invention is to provide a rapid hierarchical targeted carbon control assessment system and a carbon reduction assessment method for railway engineering construction, so as to solve the problems that the traditional methods proposed in the above background technology lack accuracy in calculating the consumption of major building materials (such as concrete and steel) and their carbon emissions, and cannot fully consider the carbon emissions in the transportation process, resulting in inaccurate carbon footprint assessment results; most current methods are unable to carefully classify different carbon emission sources in the construction process, and cannot quickly identify the main carbon emission sources, resulting in a lack of focus and specificity in the setting of carbon control targets; the existing technology makes it difficult to systematically combine the implicit carbon of building materials, transportation carbon, and construction carbon (including carbon emissions from the use of machinery and equipment and indirect emissions from electricity) for comprehensive analysis, thereby affecting the setting and implementation of the overall carbon control target.

[0006] To achieve the above object, the present invention provides a method for evaluating carbon reduction in railway engineering construction, comprising the following steps: S1. Based on railway engineering data, use BIM technology to build a three-dimensional engineering model for calculating carbon emissions; S2. Based on the carbon emissions obtained in S1, the carbon emissions are sorted by a sorting algorithm to obtain key carbon emission sources, and the key carbon emission sources are used as carbon reduction targets to formulate carbon reduction measures; S3. Based on the real-time carbon emissions situation, a feedback adjustment mechanism is used to dynamically adjust the carbon control target.

[0007] As a further improvement of the technical solution, in said S1, the railway engineering data includes material information, transportation information and construction information required for the railway tunnel engineering; Among them, material information includes the types and quantities of all building materials used, and the consumption data of building materials; Transportation information includes the distance from the supplier to the construction site, the type of transportation used, and the quantity and frequency of each transportation; Construction information includes the types of mechanical equipment used in the construction process, the expected usage time of each type of equipment, the number of shifts, and the estimated electricity consumption at the construction site.

[0008] As a further improvement of the technical solution, in S1, the calculation method of the carbon emissions calculated by the three-dimensional engineering model is: Carbon emissions from raw materials are calculated as follows: ; In the formula, Indicates the carbon emissions of building materials raw materials, Indicates The consumption of materials, Represents an index variable, Indicates the number of different building materials involved in the calculation, represents the carbon emission coefficient of each material, Indicates The carbon emission coefficient of the material, Indicates some adjustment parameter or condition; The calculation method of transportation carbon emissions generated during the transportation of materials is: ; In the formula, Indicates the carbon emissions during the transportation stage; Indicates the total number of building material types or transport lots considered; Indicates Consumption of various types of transport equipment; Represents an index variable used to iterate over each building material or transport batch. Represents a specific type of building material or a transport event; Indicates The transport distance of the transport equipment; Indicates Carbon emission factors for the types of energy consumed by transportation equipment; The construction carbon emissions generated by the use of mechanical equipment during the construction process are: ; In the formula, Indicates the carbon emissions during the construction phase; Represents an index variable, which is used to traverse each type of mechanical equipment or construction activity. Represents a specific type of machinery or a construction activity; Indicates the total number of types of machinery and equipment or construction activities considered; Indicates the mechanical equipment used during the construction process The number of shifts, Indicates the mechanical equipment used during the construction process Carbon emission factor of the energy consumed.

[0009] As a further improvement of the technical solution, in S2, based on carbon emissions, the steps of generating specific carbon reduction targets and measures by ranking carbon emissions and identifying key sources are as follows: S2.1. Sort the relative contributions of all raw material carbon emissions, transportation carbon emissions and construction carbon emissions from large to small through a quick sorting algorithm, and identify key carbon emission sources; S2.2. Develop corresponding emission reduction targets for key carbon emission sources in the raw material carbon emission, transportation carbon emission and construction carbon emission stages; S2.3. Evaluate the emission reduction effects according to the established emission reduction targets and quantify the relationship between actual performance and the predetermined targets.

[0010] As a further improvement of the technical solution, in S2.1, the relative contributions of different sources are compared by relative contribution rate, where the source with the largest relative contribution is the key carbon emission source, and the arithmetic expression of its relative contribution rate is: ; In the formula, Relative contribution rate, Used to identify a specific ingredient or category, Indicates the carbon emissions from a specific carbon emission source, represents the total carbon emissions, and .

[0011] As a further improvement of this technical solution, in S2.2, the specific steps for formulating emission reduction targets are: For each key emission source, a specific emission reduction target value is set, and the arithmetic expression of its raw material carbon emissions is: ; In the formula, Indicates the target raw material carbon emissions, that is, the new, lower raw material carbon emissions level that is expected to be achieved through carbon control measures. Indicates a specific reduction percentage in carbon emissions from raw materials; The arithmetic expression for transportation carbon emissions is: ; In the formula, It represents the target transport carbon emissions, that is, the new, lower transport carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in transport carbon emissions; The arithmetic expression of construction carbon emissions is: ; In the formula, It represents the target construction carbon emissions, that is, the new, lower construction carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in construction carbon emissions.

[0012] As a further improvement of the technical solution, in S2.3, the emission reduction effect is evaluated by the percentage of emission reduction relative to the baseline emission, and the expression is: ; In the formula, Indicates The actual reduction rate of each emission source is is the original carbon emissions, is the target emission amount set, Indicates different categories.

[0013] As a further improvement of the technical solution, in S2.3, the relationship between the actual performance and the predetermined goal is quantified by calculating the goal achievement rate, and the goal achievement rate calculation formula is: ; in, It is Target achievement rate for key emission sources; It is Specific emission reduction targets for key emission sources; It is The actual emissions from the key emission sources; is an index variable used to traverse different key emission sources or different assessment time points. Corresponding to a specific key emission source or a specific time period.

[0014] As a further improvement of the technical solution, in S3, the method for dynamically adjusting the carbon control target is: S3.1. Real-time monitoring of material usage, machine shifts and construction progress during construction; S3.2, real-time calculation and feedback of carbon emissions based on three-dimensional engineering models; S3.3. Quantify the relationship between carbon emissions and predetermined targets based on the calculated target achievement rate, and adjust the targets when carbon emissions deviate from the predetermined targets.

[0015] On the other hand, the present invention provides a railway engineering construction rapid hierarchical targeted carbon control system, which is used to implement the railway engineering construction carbon reduction assessment method as described above, including a data acquisition unit, a data processing unit, a data sorting unit, a decision-making unit, an identification output unit and a feedback adjustment unit: Wherein, the data acquisition unit is used to collect railway engineering data, use the three-dimensional engineering model established by BIM technology, and input the railway engineering data into the three-dimensional engineering model; The data processing unit calculates carbon emissions based on the three-dimensional engineering model; The data sorting unit sorts the carbon emissions based on the carbon emissions by a sorting algorithm to obtain key carbon emission sources; The decision-making unit provides specific carbon reduction targets and measures based on key carbon emission sources; The identification output unit outputs the evaluation result; The feedback regulation unit adopts a feedback regulation mechanism to dynamically adjust the carbon control target based on the real-time carbon emission situation.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The railway engineering construction carbon reduction assessment method and system automatically extracts data such as building material consumption, specifications and quantity by combining BIM technology and life cycle analysis technology to identify and evaluate carbon emission sources, thus avoiding errors caused by manual calculations. By adopting standardized transportation distances and construction equipment quotas, the accuracy of carbon emission accounting and the convenience of operation are improved, making it easier for engineering management personnel to concentrate on carbon control work.

[0017] 2. The railway engineering construction carbon reduction assessment method and system, through dynamic monitoring and real-time adjustment mechanism, can timely adjust carbon control targets and measures according to real-time data feedback during the construction process to ensure that the carbon emissions are always within a reasonable range during the construction process; formulate targeted carbon control targets and measures based on the ranking and identification results of carbon emission sources; formulate different carbon control strategies for different emission sources (such as building materials, transportation, and construction machinery) to ensure that each link can effectively reduce carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a flow chart of the overall method of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] See also Figure 1 As shown, this embodiment provides a method for evaluating carbon reduction in railway engineering construction, including the following steps: S1. Based on railway engineering data, use BIM technology to build a three-dimensional engineering model for calculating carbon emissions; S2. Based on the carbon emissions obtained in S1, the carbon emissions are sorted by a sorting algorithm to obtain key carbon emission sources, and the key carbon emission sources are used as carbon reduction targets to formulate carbon reduction measures; S3. Based on the real-time carbon emissions situation, a feedback adjustment mechanism is used to dynamically adjust the carbon control target.

[0021] In this embodiment S1, the railway engineering data includes material information, transportation information and construction information required for the railway tunnel engineering; Among them, material information includes the types and quantities of all building materials used, and the consumption data of building materials; Transportation information includes the distance from the supplier to the construction site, the type of transportation used, and the quantity and frequency of each transportation; Construction information includes the types of mechanical equipment used in the construction process, the expected usage time of each type of equipment, the number of shifts, and the estimated electricity consumption at the construction site.

[0022] In this embodiment S1, the calculation method of the carbon emissions calculated by the three-dimensional engineering model is: Carbon emissions from raw materials are calculated as follows: ; In the formula, Indicates the carbon emissions of building materials raw materials, Indicates The consumption of materials, Represents an index variable, Indicates the number of different building materials involved in the calculation, represents the carbon emission coefficient of each material, Indicates The carbon emission coefficient of the material, Indicates some adjustment parameter or condition; The calculation method of transportation carbon emissions generated during the transportation of materials is: ; In the formula, Indicates the carbon emissions during the transportation stage; Indicates the total number of building material types or transport lots considered; Indicates Consumption of various types of transport equipment; Represents an index variable used to iterate over each building material or transport batch. Represents a specific type of building material or a transport event; Indicates The transport distance of the transport equipment; Indicates Carbon emission factors for the types of energy consumed by transportation equipment; The construction carbon emissions generated by the use of mechanical equipment during the construction process are: ; In the formula, Indicates the carbon emissions during the construction phase; Represents an index variable, which is used to traverse each type of mechanical equipment or construction activity. Represents a specific type of machinery or a construction activity; Indicates the total number of types of machinery and equipment or construction activities considered; Indicates the mechanical equipment used during the construction process The number of shifts, Indicates the mechanical equipment used during the construction process Carbon emission factor of the energy consumed.

[0023] In this embodiment S2, based on carbon emissions, the steps of generating specific carbon reduction targets and measures by ranking carbon emissions and identifying key sources are as follows: S2.1. Sort the relative contributions of all raw material carbon emissions, transportation carbon emissions and construction carbon emissions from large to small through a quick sorting algorithm, and identify key carbon emission sources; S2.2. Develop corresponding emission reduction targets for key carbon emission sources in the raw material carbon emission, transportation carbon emission and construction carbon emission stages; S2.3. Evaluate the emission reduction effects according to the established emission reduction targets and quantify the relationship between actual performance and the predetermined targets.

[0024] In this embodiment S2.1, the relative contributions of different sources are compared by relative contribution rate, where the source with the largest relative contribution is the key carbon emission source, and the arithmetic expression of its relative contribution rate is: ; In the formula, Relative contribution rate, Used to identify a specific ingredient or category, Indicates the carbon emissions from a specific carbon emission source, represents the total carbon emissions, and .

[0025] In this embodiment S2.2, the specific steps for setting emission reduction targets are: For each key emission source, a specific emission reduction target value is set, and the arithmetic expression of its raw material carbon emissions is: ; In the formula, Indicates the target raw material carbon emissions, that is, the new, lower raw material carbon emissions level that is expected to be achieved through carbon control measures. Indicates a specific reduction percentage in carbon emissions from raw materials; The arithmetic expression for transportation carbon emissions is: ; In the formula, It represents the target transport carbon emissions, that is, the new, lower transport carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in transport carbon emissions; The arithmetic expression of construction carbon emissions is: ; In the formula, It represents the target construction carbon emissions, that is, the new, lower construction carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in construction carbon emissions.

[0026] In this embodiment S2.3, the emission reduction effect is evaluated by the percentage of emission reduction relative to the baseline emission, and the expression is: ; In the formula, Indicates The actual reduction rate of each emission source is is the original carbon emissions, is the target emission amount set, Indicates different categories.

[0027] In this embodiment S2.3, the relationship between the actual performance and the predetermined goal is quantified by calculating the goal achievement rate, and the goal achievement rate calculation formula is: ; in, It is Target achievement rate for key emission sources; It is Specific emission reduction targets for key emission sources; It is The actual emissions from the key emission sources; is an index variable used to traverse different key emission sources or different assessment time points. Corresponding to a specific key emission source or a specific time period.

[0028] In this embodiment S3, the method for dynamically adjusting the carbon control target is: S3.1. Real-time monitoring of material usage, machine shifts and construction progress during construction; S3.2, real-time calculation and feedback of carbon emissions based on three-dimensional engineering models; S3.3. Quantify the relationship between carbon emissions and predetermined targets based on the calculated target achievement rate, and adjust the targets when carbon emissions deviate from the predetermined targets. Example 2

[0029] This embodiment provides a railway engineering construction rapid hierarchical targeted carbon control system, which is used to implement the railway engineering construction carbon reduction assessment method as described above, including a data acquisition unit, a data processing unit, a data sorting unit, a decision-making unit, an identification output unit, and a feedback adjustment unit: Wherein, the data acquisition unit is used to collect railway engineering data, use the three-dimensional engineering model established by BIM technology, and input the railway engineering data into the three-dimensional engineering model; The data processing unit calculates carbon emissions based on the three-dimensional engineering model; The data sorting unit sorts the carbon emissions based on the carbon emissions by a sorting algorithm to obtain key carbon emission sources; The decision-making unit provides specific carbon reduction targets and measures based on key carbon emission sources; The identification output unit outputs the evaluation result; The feedback regulation unit adopts a feedback regulation mechanism to dynamically adjust the carbon control target based on the real-time carbon emission situation.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for evaluating carbon reduction in railway engineering construction, characterized in that: The following steps are involved: S1. Based on railway engineering data, use BIM technology to build a three-dimensional engineering model for calculating carbon emissions; S2. Based on the carbon emissions obtained in S1, the carbon emissions are sorted by a sorting algorithm to obtain key carbon emission sources, and the key carbon emission sources are used as carbon reduction targets to formulate carbon reduction measures; S3. Based on the real-time carbon emissions situation, a feedback adjustment mechanism is used to dynamically adjust the carbon control target.

2. The method for evaluating carbon reduction in railway engineering construction according to claim 1 is characterized by: In S1, the railway engineering data includes material information, transportation information and construction information required for the railway tunnel engineering; Among them, material information includes the types and quantities of all building materials used, and the consumption data of building materials; Transportation information includes the distance from the supplier to the construction site, the type of transportation used, and the quantity and frequency of each transportation; Construction information includes the types of mechanical equipment used in the construction process, the expected usage time of each type of equipment, the number of shifts, and the estimated electricity consumption at the construction site.

3. The method for evaluating carbon reduction in railway engineering construction according to claim 1 is characterized by: In S1, the calculation method of carbon emissions calculated by the three-dimensional engineering model is: Carbon emissions from raw materials are calculated as follows: ； In the formula, Indicates the carbon emissions of building materials raw materials, Indicates The consumption of materials, Represents an index variable, Indicates the number of different building materials involved in the calculation, represents the carbon emission coefficient of each material, Indicates The carbon emission coefficient of the material, Indicates some adjustment parameter or condition; The calculation method of transportation carbon emissions generated during the transportation of materials is: ； In the formula, Indicates the carbon emissions during the transportation stage; Indicates the total number of building material types or transport lots considered; Indicates Consumption of various types of transport equipment; Represents an index variable used to iterate over each building material or transport batch. Represents a specific type of building material or a transport event; Indicates The transport distance of the transport equipment; Indicates Carbon emission factors for the types of energy consumed by transportation equipment; The construction carbon emissions generated by the use of mechanical equipment during the construction process are: ； In the formula, Indicates the carbon emissions during the construction phase; Represents an index variable, which is used to traverse each type of mechanical equipment or construction activity. Represents a specific type of machinery or a construction activity; Indicates the total number of types of machinery and equipment or construction activities considered; Indicates the mechanical equipment used during the construction process The number of shifts, Indicates the mechanical equipment used during the construction process Carbon emission factor of the energy consumed.

4. The method for evaluating carbon reduction in railway engineering construction according to claim 3 is characterized by: In S2, based on carbon emissions, the steps of generating specific carbon reduction targets and measures by ranking carbon emissions and identifying key sources are as follows: S2.

1. Sort the relative contributions of all raw material carbon emissions, transportation carbon emissions and construction carbon emissions from large to small through a quick sorting algorithm, and identify key carbon emission sources; S2.

2. Develop corresponding emission reduction targets for key carbon emission sources in the raw material carbon emission, transportation carbon emission and construction carbon emission stages; S2.

3. Evaluate the emission reduction effects according to the established emission reduction targets and quantify the relationship between actual performance and the predetermined targets.

5. The method for evaluating carbon reduction in railway engineering construction according to claim 4 is characterized by: In S2.1, the relative contributions of different sources are compared through relative contribution rates, among which the sources with the largest relative contributions are key carbon emission sources, and the arithmetic expression of their relative contribution rates is: ； In the formula, Relative contribution rate, Used to identify a specific ingredient or category, Indicates the carbon emissions from a specific carbon emission source, represents the total carbon emissions, and .

6. The method for evaluating carbon reduction in railway engineering construction according to claim 4 is characterized by: In S2.2, the specific steps for setting emission reduction targets are: For each key emission source, a specific emission reduction target value is set, and the arithmetic expression of its raw material carbon emissions is: ； In the formula, Indicates the target raw material carbon emissions, that is, the new, lower raw material carbon emissions level that is expected to be achieved through carbon control measures. Indicates a specific reduction percentage in carbon emissions from raw materials; The arithmetic expression for transportation carbon emissions is: ； In the formula, It represents the target transport carbon emissions, that is, the new, lower transport carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in transport carbon emissions; The arithmetic expression of construction carbon emissions is: ； In the formula, It represents the target construction carbon emissions, that is, the new, lower construction carbon emissions level that is expected to be achieved through carbon control measures. Represents a specific reduction percentage in construction carbon emissions.

7. The method for evaluating carbon reduction in railway engineering construction according to claim 4 is characterized by: In S2.3, the emission reduction effect is evaluated by the percentage of emission reduction relative to the baseline emission, and the expression is: ； In the formula, Indicates The actual reduction rate of each emission source is is the original carbon emissions, is the target emission amount set, Indicates different categories.

8. The method for evaluating carbon reduction in railway engineering construction according to claim 7 is characterized by: In S2.3, the relationship between the actual performance and the predetermined goal is quantified by calculating the goal achievement rate, and the goal achievement rate calculation formula is: ； in, It is Target achievement rate for key emission sources; It is Specific emission reduction targets for key emission sources; It is The actual emissions from the key emission sources; is an index variable used to traverse different key emission sources or different assessment time points. Corresponding to a specific key emission source or a specific time period.

9. The method for evaluating carbon reduction in railway engineering construction according to claim 1 is characterized by: In S3, the method for dynamically adjusting the carbon control target is: S3.

1. Real-time monitoring of material usage, machine shifts and construction progress during construction; S3.2, real-time calculation and feedback of carbon emissions based on three-dimensional engineering models; S3.

3. Quantify the relationship between carbon emissions and predetermined targets based on the calculated target achievement rate, and adjust the targets when carbon emissions deviate from the predetermined targets.

10. A railway engineering construction rapid hierarchical targeted carbon control assessment system, used to implement the railway engineering construction carbon reduction assessment method as described in any one of claims 1 to 9, characterized in that: It includes data acquisition unit, data processing unit, data sorting unit, decision making unit, recognition output unit and feedback adjustment unit: Wherein, the data acquisition unit is used to collect railway engineering data, use the three-dimensional engineering model established by BIM technology, and input the railway engineering data into the three-dimensional engineering model; The data processing unit calculates carbon emissions based on the three-dimensional engineering model; The data sorting unit sorts the carbon emissions based on the carbon emissions by a sorting algorithm to obtain key carbon emission sources; The decision-making unit provides specific carbon reduction targets and measures based on key carbon emission sources; The identification output unit outputs the evaluation result; The feedback regulation unit adopts a feedback regulation mechanism to dynamically adjust the carbon control target based on the real-time carbon emission situation.

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