Method and system for evaluating green construction level of oversized-span bridge

Abstract

The invention relates to the technical field of green construction level evaluation, in particular to an ultra-large span bridge green construction level evaluation method and system, indexes are selected for quantitative processing, a judgment matrix is constructed through an analytic hierarchy process, weight values of the indexes are obtained, calculation is performed by using a matter element extension theory, and a classical domain, a node domain and a correlation function are obtained. And calculating the comprehensive correlation degree, and determining the green construction level grade of the super-large-span bridge according to the comprehensive correlation degree. Systematic environmental protection guidance is provided in the design and construction stages through a scientific green building evaluation index system, resource allocation and energy utilization are optimized, and environmental pollution is reduced. The evaluation system covers the full life cycle management from design, construction to operation, can continuously monitor and improve the environmental performance of the oversized span bridge, and ensures the long-term sustainable development of the oversized span bridge. The optimized green construction process obviously reduces resource consumption and environmental pollution, and is beneficial to improving the social image and sustainable development capability of the oversized-span bridge.

Description

Technical Field

[0001] The present invention relates to the technical field of green construction level evaluation, and in particular to a method and system for evaluating the green construction level of a super-long span bridge. Background Art

[0002] With the establishment, consolidation and improvement of the concept of ecological civilization construction, green development has gradually become the basic principle for promoting the healthy development of various industries. As a resource-consuming, ecologically impacting and polluting industry, the transportation industry has always adhered to the concept of green development; among them, the level of green construction refers to the comprehensive ability and effectiveness of the construction industry under the guidance of the green development concept, through scientific management and technological innovation, to achieve resource conservation, environmental protection, emission reduction, efficiency improvement and quality assurance.

[0003] Super-long span bridges have a great impact on the surrounding environment during construction and operation. In order to actively respond to the green development concept of the transportation industry, green construction technology has gradually been applied in super-long span bridges and has shown a systematic trend, but there is a lack of methods to evaluate the application effect of green construction technology in super-long span bridges. Evaluation theory is a powerful basis for reflecting the level of systematic technical methods and engineering operation, but the existing green construction evaluation index system is mainly aimed at green buildings, and has poor pertinence and applicability when evaluating the green construction of super-long span bridges.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0005] The present invention provides a method and system for evaluating the green construction level of a super-long span bridge, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A method for evaluating the green construction level of a super-long span bridge comprises the following steps:

[0008] Based on the entire life cycle of super-long span bridges, the influencing factors related to green construction are obtained, the influencing factors are analyzed and screened, and an evaluation index system for green construction level is constructed;

[0009] According to the influencing factors in the evaluation index system, the green construction level of super-long span bridges is divided into grades, and the value limits of different green construction level grades are formulated;

[0010] The weights of the evaluation indicators at each level in the evaluation indicator system are obtained by using the hierarchical analysis method;

[0011] The introduction of matter-element can be used to conduct a comprehensive evaluation of the green construction level of super-long span bridges;

[0012] Calculate the correlation between the evaluation index and the green construction level grade, and calculate the comprehensive correlation based on the determined evaluation index weights and the correlation between the evaluation index and the green construction level grade;

[0013] The green construction level of super-long span bridges is determined based on the comprehensive correlation.

[0014] Furthermore, the entire life cycle of the super-long span bridge includes a design phase, a construction phase and an operation phase, and the influencing factors related to green construction are analyzed and screened based on the design phase, the construction phase and the operation phase;

[0015] The target layer of the evaluation index system is set as the green construction level of the entire process of the super-long span bridge, and the design stage, the construction stage and the operation stage are set as the first-level index;

[0016] The secondary indicators are divided based on the primary indicators. The design stage includes bridge line selection, bridge type selection and bridge in-depth design. The construction stage includes construction management and construction technology. The operation stage includes the bridge body and the operation body.

[0017] Furthermore, the third-level indicators are divided based on the second-level indicators, specifically:

[0018] The bridge route selection includes the number of surface water functional zones of various levels, the estimated amount of sewage in the construction, production and living areas, the types and number of sensitive points crossed by the route, the number of Class 1 and Class 2 environmental air functional zones, and the number and length of ecological control zone crossing levels;

[0019] The bridge selection includes the water area occupied by the substructure, the earthwork volume per unit mileage, the steel material of the bridge deck main tower and the unit carbon emission of the engineering feasibility;

[0020] The detailed design of the bridge includes optimization of anchorage structure and main tower structure;

[0021] The construction management includes sewage treatment effect (standard classification of production and living treatment), water recycling rate, noise reduction effect (construction machinery), clean energy utilization ratio, and vehicle electrification ratio;

[0022] The construction technology includes dust treatment effect (PM10, PM2.5 or comprehensive index), non-road treatment effect, solid waste recycling rate, industrial productivity (before and after work efficiency comparison);

[0023] The bridge body includes the water environment treatment compliance level, noise reduction effect, and exhaust gas treatment effect (harmful gases);

[0024] The operating entity includes solar storage and direct flexible carbon reduction.

[0025] Furthermore, the classification of green construction levels for super-long span bridges and the establishment of value limits for different green construction level levels include:

[0026] Green Construction 1.0 (L1): Single-point civilized construction technology application, the judgment standard is ≥60 points;

[0027] Green Construction 2.0 (L2): Two-point application of environmentally friendly materials and technologies, with a judgment standard of 60-80 points;

[0028] Green Construction 3.0 (L3): The three-point green design, green construction and green operation construction technology application, the evaluation standard is 80-90 points;

[0029] Green Construction 4.0 (L4): Multi-point, collaborative application of green construction technology throughout the entire process of a cross-river bridge, with a judging standard of 90-100 points.

[0030] Furthermore, the use of the analytic hierarchy process to obtain the weights of the evaluation indicators at each level in the green construction level evaluation index system includes the following steps:

[0031] Based on the evaluation index system, a nine-level scale method is used in combination with expert consultation and investigation to construct a judgment matrix according to the relative importance results of each evaluation index;

[0032] The judgment matrix is ​​subjected to hierarchical single sorting and consistency checking, including:

[0033] Calculate the product M of each row element of the judgment matrix i :

[0034]

[0035] Calculate M i The nth root of:

[0036]

[0037] Pair Vector Normalization:

[0038]

[0039] Calculate the maximum eigenvalue λ of the judgment matrix max :

[0040]

[0041] Calculate the traditional consistency index CI:

[0042]

[0043] Compare the traditional consistency index CI and the random consistency index RI, and calculate the test coefficient CR:

[0044]

[0045] When CR≤0.1, the judgment matrix passes the consistency test. At this time, the eigenvalue of the judgment matrix is ​​the weight value of the evaluation index. When CR>0.1, the judgment matrix is ​​inconsistent.

[0046] After the judgment matrix passes the consistency test, the hierarchical total sorting and consistency test are performed. The hierarchical single sorting result of the highest level is the total sorting result. The hierarchical single sorting result of any level needs to be weighted and synthesized with the hierarchical total sorting result of the previous level to obtain the hierarchical total sorting result of the current level:

[0047] Assume that the previous layer (layer A) has indicators A1, A2, ...A n , and their corresponding total weights are a l , a2,…a i , the current layer (B layer) indicators include B 11 , B 12 , …, B nm , whose corresponding single weight value is b 11 , b 12 ,…,bij, then the calculation formula for the total weight of the current layer indicators is:

[0048] W ij =a i b ij ,

[0049] B level to A i The consistency index corresponding to a single sort is CI i , the average random consistency index is RI i , calculate the total ranking test coefficient CR i :

[0050]

[0051] If CR i If ≤0.1, the consistency check is passed and the decision is made according to the calculated total weight result; otherwise, the model is redesigned.

[0052] Furthermore, the introduction of matter-element can be used to conduct a comprehensive evaluation of the green construction level of super-long span bridges, including establishing a matter-element matrix, determining the classical domain matter-element matrix, the node domain matter-element matrix and the matter-element matrix to be evaluated, specifically:

[0053] The matter-element matrix of the green construction level of super-long span bridges is established, where R represents the matter-element, N represents the green construction level evaluation domain, and C represents the evaluation factor set, which contains n features (c1, c2, …, c n ), and the corresponding eigenvalue is (v1,v2,…,v n ), the matter-element matrix is:

[0054]

[0055] The green construction level of super-long span bridges is divided into j evaluation levels. The classical domain matter-element matrix R j express:

[0056]

[0057] N j It is represented by the j green construction level evaluation levels in the evaluation process, C j represents the i-th index of the matter-element to be evaluated, V ji Indicates the value range of the matter-element to be evaluated at the jth evaluation level;

[0058] The horizontal section of green construction of super-long span bridges is determined according to the value limit range of each evaluation index, with R p express:

[0059]

[0060] V pi Indicates the value range of green construction level evaluation index;

[0061] The parameters that affect the green construction level of super-long span bridges are expressed as object elements, and the object element to be evaluated is expressed as R0:

[0062]

[0063] P0 represents the green construction level of super-long span bridges, v i represents the i-th evaluation index c of the green construction level of the super-long span bridge to be evaluated i The value of the parameter, that is, the actual value of the parameter.

[0064] Furthermore, the calculation of the correlation between the evaluation index and the green construction level level is based on the determined evaluation index weights and combined with the correlation between the evaluation index and the green construction level level to calculate the comprehensive correlation, including:

[0065] "Distance" is used to represent the value of the correlation degree of the evaluation index. Assume that the starting points of the interval are a and b respectively, and the interval range (distance) is represented by X0. Then the interval range is X0 = |ba|. The distance D from any point x to X0 is expressed by the following formula:

[0066]

[0067] The correlation function between the evaluation index and the green construction level is established as follows:

[0068]

[0069]

[0070] X ji |a ji -b ji |;

[0071] The correlation degree of the i-th indicator of the green construction level of the super-large bridge to be evaluated with respect to the j-th evaluation level is represented by , and the comprehensive correlation degree of the green construction level of the super-large bridge is expressed by the following formula:

[0072]

[0073] Among them, w i represents the weight of the i-th indicator, K j (X j ) represents the correlation degree of the i-th indicator of the object element R0 to be evaluated in the green construction level j;

[0074] The correlation of each layer of the evaluation index system is integrated to obtain the green construction level of the entire process of the super-long span bridge, which is expressed by the following formula:

[0075]

[0076] Among them, N i Indicates the green construction level of the entire process of the super-long span bridge, W I Represents the weight of the first-level evaluation index.

[0077] A green construction level evaluation system for a super-long span bridge adopts the above-mentioned green construction level evaluation method for a super-long span bridge, comprising:

[0078] The quantitative processing module is used to analyze, screen and quantify the influencing factors related to green construction from the perspective of the entire life cycle of super-long span bridges;

[0079] The weight calculation module is used to construct a judgment matrix based on the quantitatively processed evaluation indicators through the hierarchical analysis method to obtain the weight value of each evaluation indicator;

[0080] The single index correlation calculation module is used to calculate the index after quantitative processing using the matter-element extension theory to obtain the classical domain section domain and correlation function;

[0081] The evaluation module is used to calculate the correlation between each evaluation indicator and the green construction level based on the weight value, classic domain, section domain and correlation function of each indicator, and further calculate the comprehensive correlation in combination with the determined indicator weight to determine the green construction level.

[0082] A computing device comprising:

[0083] Memory and processor;

[0084] The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the above-mentioned green construction level evaluation method for super-long span bridges is implemented.

[0085] A computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, can implement the above-mentioned green construction level evaluation method for super-long span bridges.

[0086] The beneficial effects of the present invention are:

[0087] Scientifically guide design and construction: Through a scientific green construction evaluation index system, it can provide systematic environmental protection guidance during the design and construction stages, optimize resource allocation and energy utilization, and reduce environmental pollution;

[0088] Full life cycle management: The evaluation system covers the full life cycle management from design, construction to operation, and can continuously monitor and improve the environmental performance of super-long span bridges to ensure their long-term sustainable development;

[0089] Comprehensive analysis and decision support: The use of hierarchical analysis and matter-element extension model can conduct comprehensive analysis of multiple factors, provide scientific basis for relevant decisions, and improve project management efficiency and scientific decision-making;

[0090] Significant environmental and social benefits: The optimized green construction process will significantly reduce resource consumption and environmental pollution, and will help enhance the social image and sustainable development capabilities of super-long span bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0091] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0092] Figure 1 It is a schematic diagram of the flow chart of the green construction level evaluation method of the super-long span bridge in the present invention;

[0093] Figure 2 It is a schematic diagram of the green construction level evaluation index system of super-long span bridges in the present invention. DETAILED DESCRIPTION

[0094] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0095] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0096] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0097] like Figure 1 and Figure 2 A method and system for evaluating the green construction level of a super-long span bridge is shown. The method for evaluating the green construction level of a super-long span bridge improved by the present invention comprises the following steps:

[0098] Based on the whole life cycle of super-long span bridges, the influencing factors related to green construction are obtained, the influencing factors are analyzed and screened, and an evaluation index system for green construction level is constructed; according to the influencing factors in the evaluation index system, the green construction level of super-long span bridges is divided into grades, and the value limits of different green construction level grades are formulated; the analytic hierarchy process is used to obtain the weights of the evaluation indicators at each level in the evaluation index system; the matter-element extension is introduced to conduct a comprehensive evaluation of the green construction level of super-long span bridges; the correlation between the evaluation indicators and the green construction level grade is calculated, and the comprehensive correlation is calculated based on the determined evaluation indicator weights and the correlation between the evaluation indicators and the green construction level grade; the green construction level of super-long span bridges is determined according to the comprehensive correlation.

[0099] like Figure 2As shown in the figure, the whole life cycle of super-long span bridges includes the design stage, construction stage and operation stage. Based on the design stage, construction stage and operation stage, the influencing factors related to green construction are analyzed and screened; the target layer of the evaluation index system is set as the green construction level of the whole process of super-long span bridges, and the design stage, construction stage and operation stage are set as the first-level indicators; the second-level indicators are divided based on the first-level indicators. The design stage includes bridge line selection, bridge selection and bridge in-depth design, and the construction stage includes construction management and construction technology. The relevant green construction influencing factors include construction sound environment, construction water environment, construction atmospheric environment, soil erosion, ecological protection, artificial machinery carbon emissions and other technical research and application; the operation stage includes the bridge body and the operation body. For the operation and maintenance stage of super-long span bridges, the green environmental protection management and control perspective should focus on the two aspects of the main operation of the bridge and the management and maintenance of auxiliary facilities. The main operation of the bridge focuses on the daily electromechanical energy consumption supervision, bridge water, low-impact treatment of the acoustic environment and other factors, and the management of the auxiliary facilities of the bridge focuses on the green construction and energy consumption of building facilities such as service areas, toll stations, and maintenance areas.

[0100] Furthermore, the third-level indicators are divided based on the second-level indicators, specifically:

[0101] Bridge route selection includes the number of surface water functional zones of various levels, the estimated amount of sewage in construction, production and living areas, the types and number of sensitive points crossed by the route, the number of Class 1 and Class 2 environmental air functional zones, and the number and length of ecological control zone crossing levels; bridge type selection includes the area occupied by the substructure water area, the amount of excavation per unit mileage, the steel material of the bridge deck main tower, and the unit carbon emission of the feasibility study; the in-depth design of the bridge includes the optimization of the anchor structure and the main tower structure; construction management includes sewage treatment effect (standard classification of production and living treatment), water recycling rate, noise reduction effect (construction machinery), clean energy utilization ratio, and vehicle electrification ratio; construction technology includes dust treatment effect (PM10, PM2.5 or comprehensive indicators), non-road treatment effect, solid waste recycling rate, and industrial productivity (before and after work efficiency comparison); the bridge body includes the water environment treatment compliance level, noise reduction effect, and exhaust gas treatment effect (harmful gases); the operation body includes the direct and flexible carbon emission of photovoltaic storage.

[0102] Classify the green construction level of super-long span bridges and formulate the value limits of different green construction level levels, including:

[0103] Green Construction 1.0 (L1): Single-point application of civilized construction technology, with a judgment standard of ≥60 points; Green Construction 2.0 (L2): Two-point application of environmentally friendly material technology, with a judgment standard of 60-80 points; Green Construction 3.0 (L3): Three-point application of green design, green construction and green operation construction technology, with a judgment standard of 80-90 points; Green Construction 4.0 (L4): Multi-point and coordinated application of green construction technology for the entire process of cross-river bridges, with a judgment standard of 90-100 points.

[0104] Furthermore, as shown in Table 1, specific states of different levels of green construction for super-long span bridges are defined.

[0105] Table 1. Definition of specific status of green construction level

[0106]

[0107] The weights of each level of evaluation index in the green construction level evaluation index system are obtained by using the hierarchical analysis method, which includes the following steps:

[0108] Based on the evaluation index system, a nine-level scale method combined with expert consultation survey was used to construct a judgment matrix according to the relative importance results of each evaluation index;

[0109] Among them, the nine-level scaling method is used to determine the relative importance of each indicator. The size of each value and the comparison results are shown in Table 2 below.

[0110] Table 2. Nine-level scale

[0111] <![CDATA[Score X ij (points)]]> <![CDATA[Relationship between two elements (X i and X j ) at the same level]]> 1 <![CDATA[X i and X j Equally important]]> 3 <![CDATA[X i X j Slightly important]]> 5 <![CDATA[X i X j Clearly important]]> 7 <![CDATA[X i X j Very important]]> 9 <![CDATA[X i X j Extremely important]]> 2、4、6、8 The importance is between

[0112] In the specific implementation process, questionnaires were distributed to 50 experts and practitioners in the bridge industry, inviting them to score the relative importance of each evaluation indicator. The judgment matrix for the first-level indicator design stage, construction stage and operation stage was constructed as follows:

[0113]

[0114] Perform hierarchical single sorting and consistency check on the judgment matrix, including:

[0115] Calculate the product M of each row of the judgment matrix i :

[0116]

[0117] Calculate the nth root of M:

[0118]

[0119] Pair Vector Normalization:

[0120]

[0121] Calculate the maximum eigenvalue λ of the judgment matrix max :

[0122]

[0123] Calculate the traditional consistency index CI:

[0124]

[0125] Compare the traditional consistency index CI and the random consistency index RI, and calculate the test coefficient CR:

[0126]

[0127] When CR≤0.1, the judgment matrix passes the consistency test. At this time, the eigenvalue of the judgment matrix is ​​the weight value of the evaluation index. When CR>0.1, the judgment matrix is ​​inconsistent and needs to be readjusted.

[0128] Among them, the evaluation of random consistency index RI value can be seen in the following Table 3:

[0129] Table 3. Evaluation of random consistency index RI

[0130] n 2 3 4 5 6 7 8 9 10 11 12 RI 0.00 0.58 0.90 1.12 1.24 1.32 1.41 1.45 1.49 1.52 1.54

[0131] In the specific implementation process, the construction matrix is ​​calculated according to the above steps for the first-level index to obtain the maximum eigenvalue λ max The value of the first-level index weight is 3.009, the consistency index CI is 0.005, the evaluation random consistency index is selected as 0.52, the calculated test coefficient CR is 0.009, and the consistency of the judgment matrix is ​​acceptable. The calculated first-level index weight values ​​are: design stage 0.1634; construction stage 0.5396; operation stage 0.2970.

[0132] After the judgment matrix passes the consistency test, the hierarchical total sorting and consistency test are performed. The hierarchical single sorting result of the highest level is the total sorting result. The hierarchical single sorting result of any level needs to be weighted and synthesized with the hierarchical total sorting result of the previous level to obtain the hierarchical total sorting result of the current level:

[0133] Assume that the previous layer (layer A) has indicators A1, A2, ...A n , and their corresponding total weights are a1, a2, …a i , the current layer (B layer) indicators include B 11 , B 12 , …, Bnm , whose corresponding single weight value is b 11 , b 12 ,…,bij, then the calculation formula for the total weight of the current layer indicators is:

[0134] W ij =a i b ij ,

[0135] B level to A i The consistency index corresponding to a single sort is CI i , the average random consistency index is RI i , calculate the total ranking test coefficient CR i :

[0136]

[0137] If CR i If ≤0.1, the consistency check is passed and the decision is made according to the calculated total weight result; otherwise, the model is redesigned.

[0138] The introduction of matter-element can be used to conduct a comprehensive evaluation of the green construction level of super-long span bridges, including establishing a matter-element matrix, determining the matter-element matrix of the classic domain, the matter-element matrix of the section domain and the matter-element matrix to be evaluated. Specifically:

[0139] The matter-element matrix of the green construction level of super-long span bridges is established, where R represents the matter-element, N represents the green construction level evaluation domain, and C represents the evaluation factor set, which contains n features (c1, c2, …, c n ), and the corresponding eigenvalue is (v1,v2,…,v n ), the matter-element matrix is:

[0140]

[0141] The green construction level of super-long span bridges is divided into j evaluation levels, and the classical domain matter-element matrix R j express:

[0142]

[0143] N j It is represented by the j green construction level evaluation levels in the evaluation process, C j represents the i-th index of the matter-element to be evaluated, V ji It represents the value range of the object-element to be evaluated at the jth evaluation level.

[0144] In the specific implementation process, the classic domain matter-element matrices for evaluating the green construction level of super-large span bridges are R1, R2, R3, and R4 respectively.

[0145]

[0146] The horizontal section of green construction of super-long span bridges is determined according to the value limit range of each evaluation index, with R p express:

[0147]

[0148] V pi Indicates the value range of green construction level evaluation index;

[0149] In the specific implementation process, the node-domain matter-element matrix for the green construction level evaluation of super-long span bridges is:

[0150]

[0151] The parameters that affect the green construction level of super-long span bridges are expressed as object elements, and the object element to be evaluated is expressed as R0:

[0152]

[0153] P0 represents the green construction level of super-long span bridges, v i represents the i-th evaluation index c of the green construction level of the super-long span bridge to be evaluated i The value of the parameter, that is, the actual value of the parameter.

[0154] In the specific implementation process, the matter-element matrix to be evaluated for the green construction level evaluation of super-long span bridges is:

[0155]

[0156] Calculate the correlation between the evaluation index and the green construction level level. Based on the determined evaluation index weights, calculate the comprehensive correlation by combining the correlation between the evaluation index and the green construction level level, including:

[0157] "Distance" is used to represent the value of the correlation degree of the evaluation index. Assume that the starting points of the interval are a and b respectively, and the interval range (distance) is represented by X0. Then the interval range is X0 = |ba|. The distance D from any point x to X0 is expressed by the following formula:

[0158]

[0159] The correlation function between the evaluation index and the green construction level is established as follows:

[0160]

[0161] X ji =|a ji -b ji |;

[0162] The correlation degree of the i-th indicator of the green construction level of the super-large bridge to be evaluated with respect to the j-th evaluation level is represented by , and the comprehensive correlation degree of the green construction level of the super-large bridge is expressed by the following formula:

[0163]

[0164] Among them, w i represents the weight of the i-th indicator, K j (X j ) represents the correlation degree of the i-th indicator of the object element R0 to be evaluated in the green construction level j;

[0165] The correlation of each layer of the evaluation index system is integrated to obtain the green construction level of the entire process of the super-long span bridge, which is expressed by the following formula:

[0166]

[0167] Among them, N i Indicates the green construction level of the entire process of the super-long span bridge, W I Represents the weight of the first-level evaluation index.

[0168] In the specific implementation process, a bridge project was used as a basis, and the indicator "the number of surface water functional areas across various levels c1" was used as an example for calculation. The score conversion was performed according to the actual statistical situation of the project's actual relevant data indicators. The final score was 74 points. The correlation calculation was performed according to the following steps:

[0169]

[0170] Therefore, the correlation between the number of surface water functional areas across all levels c1 and the level of green construction is:

[0171]

[0172] Taking the secondary indicator line selection as an example, the corresponding third-level indicator weight W1 = (0.2754, 0.1760, 0.0854, 0.2327, 0.2305) T The corresponding index's L1 green construction level correlation is (-0.35, 0.26, -0.1274, 0.02, -0.066) T , calculate the correlation degree corresponding to the secondary indicator line selection:

[0173]

[0174] Similarly, the correlation between other secondary indicators and each green construction level can be calculated. The correlation between the primary indicators can be obtained by combining the secondary indicator weight calculation.

[0175] The correlation of each layer of the indicator system is integrated to obtain the green construction level of the entire project. In the specific implementation process, the weight of the first-level indicator is W = (0.1634, 0.5396, 0.2970) T , combined with the corresponding risk level correlation, the comprehensive correlation of the green construction level of the project bridge is calculated, as shown in Table 4 below. The comprehensive green construction level of the project belongs to the L2 level, that is, it is in the dual-point environmental protection material technology application layer, and the green construction technology level needs to be further improved.

[0176] Table 4. Calculation of comprehensive correlation of green construction level

[0177] Green construction level L1 L2 L3 L4 Comprehensive correlation -0.251 0.015 -0.104 -0.483

[0178] The present invention further discloses a green construction level evaluation system for super-long span bridges, which adopts the green construction level evaluation method for super-long span bridges, and comprises:

[0179] The quantitative processing module is used to analyze, screen and quantify the influencing factors related to green construction from the perspective of the entire life cycle of super-large span bridges; the weight calculation module is used to construct a judgment matrix through the hierarchical analysis method based on the evaluation indicators after quantitative processing to obtain the weight value of each evaluation indicator; the single indicator correlation calculation module is used to calculate based on the indicators after quantitative processing using the matter-element extension theory to obtain the classical domain, section domain and correlation function; the evaluation module is used to calculate the correlation between each evaluation indicator and the green construction level based on the weight value, classical domain, section domain and correlation function of each indicator, and further calculate the comprehensive correlation in combination with the determined indicator weight to determine the green construction level.

[0180] A computing device comprises a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions, which, when executed by the processor, implements the green construction level evaluation method for super-long span bridges of any one of claims 1 to 7.

[0181] A computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, implement the above-mentioned method for evaluating the green construction level of a super-long span bridge. Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for evaluating the green construction level of a super-long span bridge, characterized in that: The following steps are involved: Based on the entire life cycle of super-long span bridges, the influencing factors related to green construction are obtained, the influencing factors are analyzed and screened, and an evaluation index system for green construction level is constructed; According to the influencing factors in the evaluation index system, the green construction level of super-long span bridges is divided into grades, and the value limits of different green construction level grades are formulated; The weights of the evaluation indicators at each level in the evaluation indicator system are obtained by using the hierarchical analysis method; The introduction of matter-element can be used to conduct a comprehensive evaluation of the green construction level of super-long span bridges; Calculate the correlation between the evaluation index and the green construction level grade, and calculate the comprehensive correlation based on the determined evaluation index weights and the correlation between the evaluation index and the green construction level grade; The green construction level of super-long span bridges is determined based on the comprehensive correlation.

2. The green construction level evaluation method for super-long span bridges according to claim 1 is characterized in that: The entire life cycle of the super-long span bridge includes a design phase, a construction phase and an operation phase, and the influencing factors related to green construction are analyzed and screened based on the design phase, the construction phase and the operation phase; The target layer of the evaluation index system is set as the green construction level of the entire process of the super-long span bridge, and the design stage, the construction stage and the operation stage are set as the first-level index; The secondary indicators are divided based on the primary indicators. The design stage includes bridge line selection, bridge type selection and bridge in-depth design. The construction stage includes construction management and construction technology. The operation stage includes the bridge body and the operation body.

3. The green construction level evaluation method for super-long span bridges according to claim 2 is characterized in that: The third-level indicators are divided based on the second-level indicators, specifically: The bridge route selection includes the number of surface water functional zones of various levels, the estimated amount of sewage in the construction, production and living areas, the types and number of sensitive points crossed by the route, the number of Class 1 and Class 2 environmental air functional zones, and the number and length of ecological control zone crossing levels; The bridge selection includes the water area occupied by the substructure, the earthwork volume per unit mileage, the steel material of the bridge deck main tower and the unit carbon emission of the engineering feasibility; The detailed design of the bridge includes optimization of anchorage structure and main tower structure; The construction management includes sewage treatment effect (standard classification of production and living treatment), water recycling rate, noise reduction effect (construction machinery), clean energy utilization ratio, and vehicle electrification ratio; The construction technology includes dust treatment effect (PM10, PM2.5 or comprehensive index), non-road treatment effect, solid waste recycling rate, industrial productivity (before and after work efficiency comparison); The bridge body includes the water environment treatment compliance level, noise reduction effect, and exhaust gas treatment effect (harmful gases); The operating entity includes solar storage and direct flexible carbon reduction.

4. The green construction level evaluation method for super-long span bridges according to claim 1 is characterized in that: The green construction level classification of super-long span bridges and the establishment of value limits for different green construction level levels include: Green Construction 1.0 (L1): Single-point civilized construction technology application, the judgment standard is ≥60 points; Green Construction 2.0 (L2): Two-point application of environmentally friendly materials and technologies, with a judgment standard of 60-80 points; Green Construction 3.0 (L3): The three-point green design, green construction and green operation construction technology application, the evaluation standard is 80-90 points; Green Construction 4.0 (L4): Multi-point, collaborative application of green construction technology throughout the entire process of a cross-river bridge, with a judging standard of 90-100 points.

5. The green construction level evaluation method for super-long span bridges according to claim 1 is characterized in that: The method of using the analytic hierarchy process to obtain the weights of the evaluation indicators at each level in the green construction level evaluation index system includes the following steps: Based on the evaluation index system, a nine-level scale method is used in combination with expert consultation and investigation to construct a judgment matrix according to the relative importance results of each evaluation index; The judgment matrix is ​​subjected to hierarchical single sorting and consistency checking, including: Calculate the product M of each row element of the judgment matrix i : Calculate M i The nth root of: Pair Vector Normalization: Calculate the maximum eigenvalue λ of the judgment matrix max : Calculate the traditional consistency index CI: Compare the traditional consistency index CI and the random consistency index RI, and calculate the test coefficient CR: When CR≤0.1, the judgment matrix passes the consistency test. At this time, the eigenvalue of the judgment matrix is ​​the weight value of the evaluation index. When CR>0.1, the judgment matrix is ​​inconsistent. After the judgment matrix passes the consistency test, the hierarchical total sorting and consistency test are performed. The hierarchical single sorting result of the highest level is the total sorting result. The hierarchical single sorting result of any level needs to be weighted and synthesized with the hierarchical total sorting result of the previous level to obtain the hierarchical total sorting result of the current level: Assume that the previous layer (layer A) has indicators A1, A2, ...A n , and their corresponding total weights are a l , a2,…a i , the current layer (B layer) indicators include B 11 , B 12 , …, B nm , whose corresponding single weight value is b 11 , b 12 ,…,bij, then the calculation formula for the total weight of the current layer indicators is: W ij =a i b ij , B level to A i The consistency index corresponding to a single sort is CI i , the average random consistency index is RI i , calculate the total ranking test coefficient CR i : If CR i If ≤0.1, the consistency check is passed and the decision is made according to the calculated total weight result; otherwise, the model is redesigned.

6. The green construction level evaluation method for super-long span bridges according to claim 5 is characterized in that: The introduction of matter-element can be used to conduct a comprehensive evaluation of the green construction level of super-long span bridges, including establishing a matter-element matrix, determining the classical domain matter-element matrix, the section domain matter-element matrix and the matter-element matrix to be evaluated, specifically: The matter-element matrix of the green construction level of super-long span bridges is established, where R represents the matter-element, N represents the green construction level evaluation domain, and C represents the evaluation factor set, which contains n features (c1, c2, …, c n ), and the corresponding eigenvalue is (v1,v2,…,v n ), the matter-element matrix is: The green construction level of super-long span bridges is divided into j evaluation levels. The classical domain matter-element matrix R j express: N j It is represented by the j green construction level evaluation levels in the evaluation process, C j represents the i-th index of the matter-element to be evaluated, V ji Indicates the value range of the matter-element to be evaluated at the jth evaluation level; The horizontal section of green construction of super-long span bridges is determined according to the value limit range of each evaluation index, with R p express: V pi Indicates the value range of green construction level evaluation index; The parameters that affect the green construction level of super-long span bridges are expressed as object elements, and the object element to be evaluated is expressed as R0: P0 represents the green construction level of super-long span bridges, v i represents the i-th evaluation index c of the green construction level of the super-long span bridge to be evaluated i The value of the parameter, that is, the actual value of the parameter.

7. The green construction level evaluation method for super-long span bridges according to claim 6 is characterized in that: The calculation of the correlation between the evaluation index and the green construction level grade is based on the determined evaluation index weights and combined with the correlation between the evaluation index and the green construction level grade to calculate the comprehensive correlation, including: "Distance" is used to represent the value of the correlation degree of the evaluation index. Assume that the starting points of the interval are a and b respectively, and the interval range (distance) is represented by X0. Then the interval range is X0 = |ba|. The distance D from any point x to X0 is expressed by the following formula: The correlation function between the evaluation index and the green construction level is established as follows: X ji =|a ji –b ji |; The correlation degree of the i-th indicator of the green construction level of the super-large bridge to be evaluated with respect to the j-th evaluation level is represented by , and the comprehensive correlation degree of the green construction level of the super-large bridge is expressed by the following formula: Among them, w i represents the weight of the i-th indicator, K j (X j ) represents the correlation degree of the i-th indicator of the object element R0 to be evaluated in the green construction level j; The correlation of each layer of the evaluation index system is integrated to obtain the green construction level of the entire process of the super-long span bridge, which is expressed by the following formula: Among them, N i Indicates the green construction level of the entire process of the super-long span bridge, W I Represents the weight of the first-level evaluation index.

8. A green construction level evaluation system for super-long span bridges, characterized in that: The green construction level evaluation method for a super-long span bridge as claimed in any one of claims 1 to 7 comprises: The quantitative processing module is used to analyze, screen and quantify the influencing factors related to green construction from the perspective of the entire life cycle of super-long span bridges; The weight calculation module is used to construct a judgment matrix based on the quantitatively processed evaluation indicators through the hierarchical analysis method to obtain the weight value of each evaluation indicator; The single index correlation calculation module is used to calculate the index after quantitative processing using the matter-element extension theory to obtain the classical domain section domain and correlation function; The evaluation module is used to calculate the correlation between each evaluation indicator and the green construction level based on the weight value, classic domain, section domain and correlation function of each indicator, and further calculate the comprehensive correlation in combination with the determined indicator weight to determine the green construction level.

9. A computing device comprising: Memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, the green construction level evaluation method for super-long span bridges described in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, can implement the method for evaluating the green construction level of a super-long span bridge as described in any one of claims 1 to 7.

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