CN113705984B - Environment-friendly construction evaluation method and system for foundation pit engineering - Google Patents
Environment-friendly construction evaluation method and system for foundation pit engineering Download PDFInfo
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Abstract
The invention discloses a foundation pit engineering green construction evaluation method and a system, which belong to the technical field of building and green construction, wherein the method comprises the following steps: establishing a foundation pit engineering green construction evaluation index system comprising first-level evaluation indexes and second-level evaluation indexes corresponding to the first-level evaluation indexes; determining a judgment matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes by the judgment matrix; determining the membership degree of each first-level evaluation index by the total score of the grade to which each second-level evaluation index corresponding to the first-level evaluation index belongs; and obtaining comprehensive evaluation of each level of evaluation index according to each membership degree and the corresponding weight, further obtaining green construction scores, and determining green construction evaluation grades, wherein the higher the green construction scores are, the higher the green construction evaluation grades are. The method can solve the defects of green construction evaluation in foundation pit engineering project research and the complexity problem of the calculation method between indexes.
Description
Technical Field
The invention belongs to the technical field of building and green construction, and particularly relates to a foundation pit engineering green construction evaluation method and system.
Background
With the rapid development of urban construction, urban land is more and more stressed, and foundation pit engineering is driven to develop in a larger and deeper direction. The foundation pit engineering comprises several important construction stages of investigation, earthwork excavation, foundation pit support, foundation pit dewatering, building enclosure reinforcement and the like, the foundation pit engineering is obviously different from other partial engineering in terms of construction characteristics, construction methods and construction influence, the foundation pit engineering is greatly different from the design and construction of an upper structure, and the construction of the foundation pit engineering often causes extremely uncoordinated surrounding environments due to pile foundation construction, earthwork excavation outward transportation, mechanical construction noise and the like, and serious environmental pollution is generated; aiming at the special field, how to improve the green construction level, and what kind of theoretical method is adopted for evaluation is the current difficult problem, so a practical foundation pit engineering green construction evaluation model is urgently needed to promote the application of the deep foundation pit engineering green construction, the green construction is implemented in the construction and use process, the important promotion effect is played on the green evaluation of the whole life cycle of the building engineering, and meanwhile, the method has extremely important practical significance on the sustainable development of the building industry.
Disclosure of Invention
Aiming at the defects of green construction evaluation in foundation pit engineering project research and the complexity of a calculation method between indexes, the invention provides a foundation pit engineering green construction evaluation method and system.
In order to achieve the above object, according to an aspect of the present invention, there is provided a green construction evaluation method for foundation pit engineering, comprising:
Establishing a foundation pit engineering green construction evaluation index system, wherein the foundation pit engineering green construction evaluation index system comprises a first-level evaluation index and a second-level evaluation index corresponding to each first-level evaluation index;
determining a judgment matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes by the judgment matrix of each level of evaluation indexes;
determining the membership degree of each first-level evaluation index by the total score of the grade to which each second-level evaluation index corresponding to the first-level evaluation index belongs;
and obtaining comprehensive evaluation of each level of evaluation index according to the membership degree and the corresponding weight of each level of evaluation index, and obtaining green construction scores according to the comprehensive evaluation of each level of evaluation index, so as to determine the green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is.
In some alternative embodiments, the first level of evaluation index comprises: environmental protection, construction management, material saving and material resource utilization, water saving and water resource utilization, energy saving and energy resource utilization, and land saving and construction land protection;
The secondary evaluation index corresponding to the environmental protection comprises: environmental protection measures, cultural relics protection, coordination of surrounding environment, noise control, dust control, slurry control and treatment and waste gas and waste water management;
The second-level evaluation index corresponding to the construction management comprises: safety and management system, deep foundation pit green construction organization design, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification inspection report;
the secondary evaluation indexes corresponding to the material saving and the material resource utilization comprise: recycling building waste materials, saving materials, designing and selecting equipment materials;
The second-level evaluation index corresponding to the water saving and the water resource utilization comprises: drainage system, water supply system, new technology and equipment for saving water and saving water for living office;
The secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: new equipment, equipment inspection and maintenance and living office energy saving in the new energy saving technology;
the second-level evaluation index corresponding to the land protection and the construction land protection comprises: the excavation of the foundation pit affects the surrounding land, the total layout and construction scheme of the foundation pit are optimized, and the land and land resources are used for greening.
In some alternative embodiments, determining a decision matrix for each level of the evaluation index using the difference between the scores of each level of the evaluation index comprises:
Based on a nine-level scale method, comparison of all levels of evaluation indexes in the nine-level scale method is changed into a difference value between scores of all levels of evaluation indexes, corresponding values are determined according to a range of intervals where the difference value is located, and finally a judgment matrix of all levels of evaluation indexes is obtained according to the values of the values corresponding to the range of the difference value.
In some alternative embodiments, the weights of the evaluation indexes of each level are obtained from a judgment matrix of the evaluation indexes of each level, including:
And normalizing each element in the judgment matrix according to columns to obtain a first matrix, adding the first matrix according to rows to obtain a second matrix, and normalizing the second matrix to obtain a weight matrix.
In some alternative embodiments, determining the membership degree of each level of the first-level evaluation index from the total score of the class to which each level of the second-level evaluation index corresponding to the level of the first-level evaluation index belongs includes:
The membership degree of each first-level evaluation index is determined by R I＝[RIij],RIij＝Mij/N, wherein R I is the membership degree of the first-level evaluation index I, R Iij is the element value in a membership degree matrix, M ij is the total score of the ith second-level evaluation index of the first-level evaluation index I belonging to the jth grade, and N is the total number of the accumulated inspection parts before the inspection period, wherein the higher the score of the second-level evaluation index corresponding to the first-level evaluation index I is, the higher the grade is.
In some alternative embodiments, the comprehensive evaluation of each level of evaluation index is obtained from the membership degree and the corresponding weight of each level of evaluation index, including:
And obtaining comprehensive evaluation of each first-level evaluation index by Z I＝kI·RI, wherein Z I is the comprehensive evaluation score of the first-level evaluation index I, k I is the weight of the first-level evaluation index I, and R I is the membership degree of the first-level evaluation index I.
In some alternative embodiments, the green construction score is derived from the comprehensive evaluation of each level of evaluation index, thereby determining a green construction evaluation level, comprising:
Obtaining a first-level index combination comprehensive evaluation matrix Z through comprehensive evaluation of each first-level evaluation index by Z=K.R, wherein K is a weight matrix formed by weights of each first-level evaluation index, and R is a membership matrix formed by membership of each first-level evaluation index;
and obtaining a green construction score S from S=Z.F, wherein F is a coefficient matrix.
According to another aspect of the present invention, there is provided a foundation pit engineering green construction evaluation system, comprising:
The system comprises an index system construction module, a foundation pit engineering green construction evaluation index system analysis module and a foundation pit engineering green construction evaluation module, wherein the foundation pit engineering green construction evaluation index system comprises first-level evaluation indexes and second-level evaluation indexes corresponding to the first-level evaluation indexes;
The weight determining module is used for determining a judging matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes from the judging matrix of each level of evaluation indexes;
The membership degree determining module is used for determining the membership degree of each first-level evaluation index by the total score of the class of each second-level evaluation index corresponding to the first-level evaluation index;
The construction evaluation module is used for obtaining comprehensive evaluation of each level of evaluation index according to membership degree and corresponding weight of each level of evaluation index, and further obtaining green construction score according to comprehensive evaluation of each level of evaluation index, and further determining green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is.
According to another aspect of the present invention there is provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of the methods described above when the computer program is executed.
According to another aspect of the present invention there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of any of the methods described above.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
(1) Aiming at the defect of green construction evaluation in foundation pit engineering project research, the green construction key points are classified and arranged by a more scientific method, and simultaneously, an index system and a comprehensive evaluation method are optimized to construct a foundation pit engineering evaluation index system based on an AHP-fuzzy comprehensive method.
(2) Aiming at the problems that foundation pit engineering index systems are more, the importance degrees among indexes are obviously different, and the improved AHP-fuzzy synthesis method is adopted for calculation, so that the method is reasonable.
(3) The green construction evaluation depends on expert investigation for grading, and the frequency is limited, so that the green construction level in the field life cycle cannot be truly reflected. And establishing a green construction whole process inspection scoring standard of the foundation pit engineering, calculating green construction scores of all stages, forming a change curve of green degree with time or in a construction stage in the foundation pit construction process, and analyzing and controlling the green degree of the foundation pit engineering green construction whole process.
(4) Aiming at the defects that the calculation process is complex and the software application aspect exists, foundation pit engineering green construction evaluation software which is written based on python and consists of a plurality of language databases is developed and designed, and the software can be directly imported into a scoring excel form to directly obtain scores; the function provides a certain reference and reference function for the evaluation, analysis and process control of green construction of enterprises on various project departments or foundation pit engineering professional sub-division institutions to a certain extent.
Drawings
Fig. 1 is a schematic flow chart of a green construction evaluation method for foundation pit engineering provided by an embodiment of the invention;
FIG. 2 is a green construction evaluation index system for foundation pit engineering provided by the embodiment of the invention;
FIG. 3 is a top-moon green construction total score provided by an embodiment of the invention;
FIG. 4 is a tenth monthly green construction score provided by an embodiment of the present invention;
FIG. 5 is a graph showing the total score and the green degree variation according to the embodiment of the present invention;
FIG. 6 is a graph of an "environmental protection" green level change provided by an embodiment of the present invention;
FIG. 7 is a graph of "work management" green level change provided by an embodiment of the present invention;
FIG. 8 is a graph showing a "saving" green degree variation curve provided by an embodiment of the present invention;
FIG. 9 is a graph of a "water conservation" green change provided by an embodiment of the present invention;
FIG. 10 is a graph of a "energy saving" green level change provided by an embodiment of the present invention;
fig. 11 is a plot of "pitch" green level change provided by an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the examples of the present invention, "first," "second," etc. are used to distinguish between different objects, and are not used to describe a particular order or sequence.
Fig. 1 is a schematic flow chart of a green construction evaluation method for foundation pit engineering, according to an embodiment of the present invention, where the method shown in fig. 1 includes the following steps:
S1: establishing a foundation pit engineering green construction evaluation index system, wherein the foundation pit engineering green construction evaluation index system comprises a first-level evaluation index and a second-level evaluation index corresponding to each first-level evaluation index;
S2: determining a judgment matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes by the judgment matrix of each level of evaluation indexes;
s3: determining the membership degree of each first-level evaluation index by the total score of the grade to which each second-level evaluation index corresponding to the first-level evaluation index belongs;
S4: and obtaining comprehensive evaluation of each level of evaluation index according to the membership degree and the corresponding weight of each level of evaluation index, and obtaining green construction scores according to the comprehensive evaluation of each level of evaluation index, so as to determine the green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is.
In the embodiment of the invention, the green construction key points of the foundation pit engineering are summarized, the index system is selected and perfected, a reasonable index system is reserved, unreasonable and overlapped parts are deleted, and the green construction evaluation index system of the foundation pit engineering is established. As shown in fig. 2.
The first-level evaluation index comprises: environmental protection, construction management, material saving and material resource utilization, water saving and water resource utilization, energy saving and energy resource utilization, and land saving and construction land protection;
The corresponding secondary evaluation indexes of the environmental protection comprise: environmental protection measures, cultural relics protection, coordination of surrounding environment, noise control, dust control, slurry control and treatment and waste gas and waste water management;
The second-level evaluation indexes corresponding to the construction management comprise: safety and management system, deep foundation pit green construction organization design, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification inspection report;
The second-level evaluation indexes corresponding to the material saving and the material resource utilization comprise: recycling building waste materials, saving materials, designing and selecting equipment materials;
The second-level evaluation indexes corresponding to the water saving and the water resource utilization comprise: drainage system, water supply system, new technology and equipment for saving water and saving water for living office;
the secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: new equipment, equipment inspection and maintenance and living office energy saving in the new energy saving technology;
the second-level evaluation indexes corresponding to the land protection and the construction land protection comprise: the excavation of the foundation pit affects the surrounding land, the total layout and construction scheme of the foundation pit are optimized, and the land and land resources are used for greening.
In the embodiment of the invention, a weight calculation selection analytic hierarchy Process (ANALYTIC HIERARCHY Process, AHP) of a foundation pit engineering green construction evaluation index system is firstly required to calculate a judgment matrix (conventionally determined by a nine-level scale method) of each level of indexes. The invention adopts a grading difference comparison method to determine the scale on the basis of nine-level scale method (the original comparison principle is shown in table 1).
Table 1 nine-level scale comparison principle
The comparison of the evaluation indexes of all levels is changed into the comparison of the difference range between the evaluation index scores (the average value of a plurality of scores) to obtain a representative conventional nine-level scale, the corresponding value is determined according to the interval range where the difference value is located, and finally, the judgment matrix of the evaluation indexes of all levels is obtained according to the value corresponding to the difference range, as shown in the table 2.
Table 2 judgment matrix value criterion
In the embodiment of the invention, the importance comparison and the weight value calculation are carried out on each evaluation index, namely, the eigenvector of the judgment matrix is calculatedThe calculation process is as follows:
element of B is normalized by column, i.e.:
n represents the number of rows and columns in the matrix.
For a pair ofAdding according to rows to obtain:
representing the i-th column element in the decision matrix B.
For a pair ofNormalizing to obtain:
Wherein B is a judgment matrix of a scoring matrix corresponding to the evaluation index;
A matrix normalized by columns is judged for the matrix B;
For/> Adding the obtained matrix by row;
b ij is the ith row and jth column elements in the judgment matrix B;
For/> An ith column element in the matrix;
K i is the weight value of the corresponding element hierarchy list ordering.
And thus, the weight of each level of evaluation index of the green construction of the foundation pit engineering is obtained.
In the examples of the present invention, the evaluation grade was divided into four grades, as shown in table 3.
Table 3 evaluation rating and description
| Grade | Description of the class | Score range |
| Failure to pass | Does not meet the green construction standard | [0，60) |
| One star | Meets the basic requirements of green construction | [60，72) |
| Two stars | Level exceeding overall green construction | [72，85) |
| Three stars | Each index reaches a higher level of green construction | [85，100] |
Meanwhile, an evaluation standard is formulated for green construction daily inspection scoring, as shown in tables 4-9.
TABLE 4 evaluation criteria for "environmental protection
TABLE 5 evaluation criteria for construction management
Table 6 "Material saving" evaluation criteria
Table 7 "Water conservation" evaluation criteria
Table 8 "energy conservation" evaluation criteria
Table 9 "festival land" evaluation criteria
The scoring principle is as follows:
1) The control item must meet the requirement, otherwise, the secondary evaluation index score is 0;
2) If the number of the score items reaching the requirement is less than 50% of the total number of the items, judging that the score items are unqualified;
3) If the score item reaches the required item number which is more than or equal to 50% of the total item number, judging that the score item is one star;
4) If the score item reaches 75% or more of the total item number, judging that the score item is two stars;
5) If all the score terms meet the requirements, determining that the score terms are three stars;
6) The inspector determines a specific score according to the implementation degree of the project element item, but the specific score is required to be within a scoring range corresponding to the grade.
In the embodiment of the invention, the grade evaluation is performed by adopting the fuzzy comprehensive evaluation, wherein the fuzzy comprehensive evaluation is to convert qualitative problems into quantitative calculation by adopting a membership degree principle, and the preparation and evaluation process is as follows:
1) Establishing and evaluating indexes of each level
The index system is shown in fig. 2, the fuzzy comprehensive evaluation is adopted for the secondary evaluation index, and the primary index evaluation set is { environmental protection, construction management, material saving and material resource utilization, water saving and water resource utilization, energy saving and energy utilization, land saving and construction land protection }, which is defined as follows
E＝{EA,EB,EC,ED,EE,EF} (4)
The same definition is as follows:
environmental protection: a= { A 1,A2,A3,A4,A5,A6 } (5)
And (3) construction management: b= { B 1,B2,B3,B4,B5 } (6)
Saving materials and utilizing material resources: c= { C 1,C2,C3 } (7)
Water saving and water resource utilization: d= { D 1,D2,D3,D4 } (8)
Energy saving and energy utilization: e= { E 1,E2,E3 } (9)
Land saving and construction land protection: f= { F 1,F2,F3 } (10)
2) Determining weights of indexes of each level
The weights of the indexes of each level are calculated by the improved analytic hierarchy process, for example:
Weight vector of first-order index:
K＝[KA,KB,KC,KD,KE,KF] (11)
The second-level index weight vector is sequentially as follows:
kA＝[kA1,kA2,kA3,kA4,kA5,kA5] (12)
kB＝[kB1,kB2,KB3,kB4,kB5] (13)
kC＝[kC1,kC2,kC3] (14)
kD＝[kD1,kD2,kD3,kD4] (15)
kE＝[kE1,kE2,kE3] (16)
kF＝[kF1,kF2,kF3] (17)
A, B, C, D, E, F respectively represents environmental protection, construction management, material saving, material resource utilization, water saving, energy utilization, land saving and construction land protection; k Ij denotes the weight vector of the j-th element in the I-index, where i= A, B, C, D, E, F;
3) Establishing a rating set
And (3) dividing the evaluation grade according to the score value range calculated by the evaluation, wherein Y= { unqualified, one star, two stars and three stars }, and the corresponding score value range is shown in table 3.
4) Membership calculation
The daily inspection scores during the construction of the deep foundation pit engineering are used as judgment basis, the membership matrix which dynamically changes along with time can be obtained according to the accumulated inspection scores, and the final scores and grades, such as the membership calculation process of the environmental protection indexes, are determined as shown in table 10.
TABLE 10 degree of membership to environmental protection indicators
Namely, the membership matrix calculation formula of the environmental protection index is as follows:
5) Comprehensive calculation
Environment protection green construction comprehensive evaluation matrix
ZA＝kA·RA (19)
Similarly, Z B、ZC、ZD、ZE、ZF can be calculated;
the first-level index combination comprehensive evaluation matrix Z is as follows:
Z＝K·R (20)
And R= [ R A,RB,RC,RD,RE,RF ] is a membership matrix consisting of membership of each level of evaluation index.
In the embodiment of the invention, the green construction score S is calculated as follows:
S＝Z·F (21)
Wherein F is a coefficient matrix, which can be F= [55, 65, 75, 90] T, and the four score values are reduced on the basis of the grade judging range, and meanwhile, the score values which all meet the green construction requirement are improved, so that the green construction is encouraged to be comprehensively carried out by construction related units, and the green construction evaluation grade is determined according to a formula 21 and a table 3.
The present invention will be described below by way of example with respect to the construction of foundation pit engineering green construction evaluation week check system established, and the evaluation record update in Excel table to form on-site check evaluation table. The field inspection scoring table is shown in table 11.
Table 11 in-situ inspection scoring table
In the embodiment of the invention, a plurality of relevant program modules such as a graphic interface design PyQt, a mathematical judgment and calculation math, a matrix calculation Numpy, a reading and saving of table data Pandas, a graphic curve generation Matplotlib and the like are adopted, and expert scoring and weight, an inspection scoring and membership matrix, a fuzzy comprehensive evaluation scoring and grade and greenness analysis are realized according to a foundation pit engineering green construction evaluation method. The method mainly realizes the functions of data input, automatic calculation, score display and data analysis. And (4) importing a table 11, automatically reading and generating related calculation data, and forming a change curve of the green degree of foundation pit construction with time or in a construction stage. As shown in fig. 3 to 11, respectively. Wherein, fig. 3 is a first month green construction total score provided by the embodiment of the invention; FIG. 4 is a tenth monthly green construction score provided by an embodiment of the present invention; FIG. 5 is a graph showing the total score and the green degree variation according to the embodiment of the present invention; FIG. 6 is a graph of an "environmental protection" green level change provided by an embodiment of the present invention; FIG. 7 is a graph of "work management" green level change provided by an embodiment of the present invention; FIG. 8 is a graph showing a "saving" green degree variation curve provided by an embodiment of the present invention; FIG. 9 is a graph of a "water conservation" green change provided by an embodiment of the present invention; FIG. 10 is a graph of a "energy saving" green level change provided by an embodiment of the present invention; fig. 11 is a plot of "pitch" green level change provided by an embodiment of the present invention.
It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of operations of the steps/components may be combined into new steps/components, according to the implementation needs, to achieve the object of the present application.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The green construction evaluation method for the foundation pit engineering is characterized by comprising the following steps of:
Establishing a foundation pit engineering green construction evaluation index system, wherein the foundation pit engineering green construction evaluation index system comprises a first-level evaluation index and a second-level evaluation index corresponding to each first-level evaluation index;
determining a judgment matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes by the judgment matrix of each level of evaluation indexes;
determining the membership degree of each first-level evaluation index by the total score of the grade to which each second-level evaluation index corresponding to the first-level evaluation index belongs;
Obtaining comprehensive evaluation of each level of evaluation index according to membership degree and corresponding weight of each level of evaluation index, and obtaining green construction grade according to comprehensive evaluation of each level of evaluation index, and further determining green construction grade, wherein the higher the green construction grade is, the higher the green construction grade is;
determining a judgment matrix of each level of evaluation index by using the difference value between the scores of each level of evaluation index, comprising:
Based on a nine-level scale method, comparison of all levels of evaluation indexes in the nine-level scale method is changed into a difference value between scores of all levels of evaluation indexes, corresponding values are determined according to a range of intervals where the difference value is located, and finally a judgment matrix of all levels of evaluation indexes is obtained according to the values of the values corresponding to the range of the difference value.
2. The method of claim 1, wherein the primary evaluation index comprises: environmental protection, construction management, material saving and material resource utilization, water saving and water resource utilization, energy saving and energy resource utilization, and land saving and construction land protection;
The secondary evaluation index corresponding to the environmental protection comprises: environmental protection measures, cultural relics protection, coordination of surrounding environment, noise control, dust control, slurry control and treatment and waste gas and waste water management;
The second-level evaluation index corresponding to the construction management comprises: safety and management system, deep foundation pit green construction organization design, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification inspection report;
the secondary evaluation indexes corresponding to the material saving and the material resource utilization comprise: recycling building waste materials, saving materials, designing and selecting equipment materials;
The second-level evaluation index corresponding to the water saving and the water resource utilization comprises: drainage system, water supply system, new technology and equipment for saving water and saving water for living office;
The secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: new equipment, equipment inspection and maintenance and living office energy saving in the new energy saving technology;
the second-level evaluation index corresponding to the land protection and the construction land protection comprises: the excavation of the foundation pit affects the surrounding land, the total layout and construction scheme of the foundation pit are optimized, and the land and land resources are used for greening.
3. The method of claim 2, wherein obtaining weights of the respective levels of the evaluation indicators from the determination matrix of the respective levels of the evaluation indicators comprises:
And normalizing each element in the judgment matrix according to columns to obtain a first matrix, adding the first matrix according to rows to obtain a second matrix, and normalizing the second matrix to obtain a weight matrix.
4. A method according to claim 3, wherein determining the membership degree of each primary evaluation index from the total score of the class to which each secondary evaluation index corresponding to the primary evaluation index belongs comprises:
The membership degree of each first-level evaluation index is determined by R I＝[RIij],RIij＝Mij/N, wherein R I is the membership degree of the first-level evaluation index I, R Iij is the element value in a membership degree matrix, M ij is the total score of the ith second-level evaluation index of the first-level evaluation index I belonging to the jth grade, and N is the total number of the accumulated inspection parts before the inspection period, wherein the higher the score of the second-level evaluation index corresponding to the first-level evaluation index I is, the higher the grade is.
5. The method of claim 4, wherein obtaining the comprehensive evaluation of each level of evaluation index from the membership of each level of evaluation index and the corresponding weight comprises:
And obtaining comprehensive evaluation of each first-level evaluation index by Z I＝kI·RI, wherein Z I is the comprehensive evaluation score of the first-level evaluation index I, k I is the weight of the first-level evaluation index I, and R I is the membership degree of the first-level evaluation index I.
6. The method of claim 5, wherein the green construction score is derived from the comprehensive evaluation of the primary evaluation indicators to determine a green construction evaluation level, comprising:
Obtaining a first-level index combination comprehensive evaluation matrix Z through comprehensive evaluation of each first-level evaluation index by Z=K.R, wherein K is a weight matrix formed by weights of each first-level evaluation index, and R is a membership matrix formed by membership of each first-level evaluation index;
and obtaining a green construction score S from S=Z.F, wherein F is a coefficient matrix.
7. The green construction evaluation system of foundation pit engineering is characterized by comprising:
The system comprises an index system construction module, a foundation pit engineering green construction evaluation index system analysis module and a foundation pit engineering green construction evaluation module, wherein the foundation pit engineering green construction evaluation index system comprises first-level evaluation indexes and second-level evaluation indexes corresponding to the first-level evaluation indexes;
The weight determining module is used for determining a judging matrix of each level of evaluation indexes by adopting the difference value between the scores of each level of evaluation indexes, and further obtaining the weight of each level of evaluation indexes from the judging matrix of each level of evaluation indexes;
The membership degree determining module is used for determining the membership degree of each first-level evaluation index by the total score of the class of each second-level evaluation index corresponding to the first-level evaluation index;
The construction evaluation module is used for obtaining comprehensive evaluation of each level of evaluation index according to the membership degree and the corresponding weight of each level of evaluation index, further obtaining green construction scores according to the comprehensive evaluation of each level of evaluation index, and further determining green construction evaluation grades, wherein the higher the green construction scores are, the higher the green construction evaluation grades are;
determining a judgment matrix of each level of evaluation index by using the difference value between the scores of each level of evaluation index, comprising:
Based on a nine-level scale method, comparison of all levels of evaluation indexes in the nine-level scale method is changed into a difference value between scores of all levels of evaluation indexes, corresponding values are determined according to a range of intervals where the difference value is located, and finally a judgment matrix of all levels of evaluation indexes is obtained according to the values of the values corresponding to the range of the difference value.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 6 when the computer program is executed by the processor.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 6.
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