CN113705984A - Green construction evaluation method and system for foundation pit engineering - Google Patents
Green construction evaluation method and system for foundation pit engineering Download PDFInfo
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Abstract
The invention discloses a green construction evaluation method and a green construction evaluation system for foundation pit engineering, belonging to the field of buildings and the technical field of green construction, wherein the method is realized by the following steps: establishing a green construction evaluation index system of the foundation pit engineering, wherein the green construction evaluation index system comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes; determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index from the judgment matrix; determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index; and obtaining comprehensive evaluation of each primary evaluation index according to each membership degree and the corresponding weight, further obtaining a green construction score, and determining the green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is. The invention can solve the problems of the deficiency of green construction evaluation in the research of foundation pit engineering projects and the complexity of the calculation method between indexes.
Description
Technical Field
The invention belongs to the field of buildings and the technical field of green construction, and particularly relates to a green construction evaluation method and system for foundation pit engineering.
Background
Along with the rapid development of urban construction, urban land is more and more tense, and foundation pit engineering is driven to develop in a larger and deeper direction. The foundation pit engineering comprises several important construction stages of reconnaissance, earthwork excavation, foundation pit supporting, foundation pit dewatering, enclosure structure reinforcement and the like, the foundation pit engineering is obviously different from other partial engineering no matter from construction characteristics, construction methods or construction influence, the design and construction of the foundation pit engineering and an upper structure have great difference, and the construction of the foundation pit engineering often causes extremely inconsistent surrounding environment and more serious environmental pollution due to pile foundation construction, earthwork outward transportation, mechanical construction noise and the like; aiming at the special field, how to improve the level of green construction and what theoretical method is adopted for evaluation is a difficult problem at present, so a feasible green construction evaluation model of the foundation pit engineering is urgently needed to promote the application of the green construction of the deep foundation pit engineering, green construction is implemented in the process of construction and use, the green evaluation of the whole life cycle of the construction engineering is promoted, and the method has extremely important practical significance on the sustainable development of the construction industry.
Disclosure of Invention
The invention provides a green construction evaluation method and system for foundation pit engineering, aiming at the defects of green construction evaluation in foundation pit engineering project research and the complexity of a calculation method between indexes.
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, including:
establishing a green construction evaluation index system of the foundation pit engineering, wherein the green construction evaluation index system of the foundation pit engineering comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes;
determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index by the judgment matrix of each level of evaluation index;
determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index;
and obtaining comprehensive evaluation of each primary evaluation index according to the membership degree and the corresponding weight of each primary evaluation index, further obtaining a green construction score according to the comprehensive evaluation of each primary evaluation index, and further determining a 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 primary evaluation index comprises: environmental protection, construction management, material and material resource conservation, water and water resource utilization, energy and energy utilization and land and construction land protection;
the secondary evaluation indexes corresponding to the environmental protection comprise: environmental protection system measures, cultural relic protection and surrounding environment coordination, noise control, dust raising control, slurry control and treatment and waste gas and waste water control;
the secondary evaluation indexes corresponding to the construction management comprise: safety and management system, green construction organization design of deep foundation pit, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification review report;
the secondary evaluation indexes corresponding to the material saving and material resource utilization comprise: recycling and utilizing building excess materials and waste materials, saving materials and designing and selecting equipment materials;
the secondary evaluation indexes corresponding to water conservation and water resource utilization comprise: a drainage system, a water supply system, new water-saving technology and equipment and water saving in daily life and office work;
the secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: the energy-saving new technology, the new equipment, the equipment inspection and maintenance and the energy conservation in life and office;
the secondary evaluation indexes corresponding to the land saving and construction land protection comprise: the influence of the excavation of the foundation pit on the peripheral land, the total layout and the construction scheme of the foundation pit are optimized, and the land and land resources for greening are obtained.
In some optional embodiments, determining the judgment matrix of each level of the evaluation index by using the difference between the scores of each level of the evaluation index includes:
based on a nine-level scale method, the comparison of all levels of evaluation indexes in the nine-level scale method is changed into the difference value between the scores of all levels of evaluation indexes, corresponding values are determined according to the range of the interval where the difference value is located, and finally, the judgment matrix of all levels of evaluation indexes is obtained through the values corresponding to the range of the difference value.
In some optional embodiments, obtaining the weight of each level of the evaluation index from the judgment matrix of each level of the evaluation index includes:
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 optional embodiments, determining the membership degree of each primary evaluation index according to the total score of the grade to which each secondary evaluation index corresponding to the primary evaluation index belongs comprises:
from RI＝[RIij],RIij＝MijDetermining the membership degree of each primary evaluation index, wherein RIDegree of membership, R, as a first-order evaluation index IIijIs the value of an element in the membership matrix, MijThe ith secondary evaluation index which is the primary evaluation index I belongs to the total score of the jth grade, and N is the total number of the inspection parts accumulated before the inspection period, wherein the higher the score of the secondary evaluation index corresponding to the primary evaluation index I is, the higher the grade of the secondary evaluation index is.
In some alternative embodiments, the obtaining the comprehensive evaluation of each primary evaluation index from the membership degree and the corresponding weight of each primary evaluation index comprises:
from ZI＝kI·RIObtaining the comprehensive evaluation of each first-level evaluation index, wherein ZIIs a comprehensive evaluation score, k, of a primary evaluation index IIIs the weight of the first-order evaluation index I, RIIs the membership degree of the first-level evaluation index I.
In some optional embodiments, the step of obtaining a green construction score from the comprehensive evaluation of each primary evaluation index, and further determining a green construction evaluation grade includes:
obtaining a primary index combination comprehensive evaluation matrix Z by comprehensive evaluation of each primary evaluation index by Z-K.R, wherein K is a weight matrix consisting of the weights of each primary evaluation index, and R is a membership matrix consisting of the membership degrees of each primary evaluation index;
and obtaining a green construction score S from the S-Z-F, wherein F is a coefficient matrix.
According to another aspect of the present invention, there is provided a green construction evaluation system for foundation pit engineering, comprising:
the system comprises an index system construction module, a data processing module and a data processing module, wherein the index system construction module is used for constructing a green construction evaluation index system of the foundation pit engineering, and the green construction evaluation index system of the foundation pit engineering comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes;
the weight determining module is used for determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index according to the judgment matrix of each level of evaluation index;
the membership degree determining module is used for determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index;
and the construction evaluation module is used for obtaining the comprehensive evaluation of each primary evaluation index according to the membership degree and the corresponding weight of each primary evaluation index, further obtaining a green construction score according to the comprehensive evaluation of each primary evaluation index, and further determining a 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 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 executing the computer program.
According to another aspect of the invention, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any of the above.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) aiming at the defects of green construction evaluation in foundation pit engineering project research, a scientific method is utilized to classify and arrange the green construction key points, and meanwhile, 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 the foundation pit engineering index system is more and the importance degrees among the indexes are obviously different, the improved AHP-fuzzy synthesis method is adopted for calculation, and the calculation is more reasonable.
(3) The evaluation of green construction depends on expert investigation for grading, the frequency quantity is limited, and the green construction level in the field whole life cycle cannot be truly reflected. And establishing a standard for checking and scoring the whole green construction process of the foundation pit engineering, calculating green construction scores of all stages according to the standard, forming a change curve of the green degree in the foundation pit construction process along with time or construction stages, and analyzing and controlling the green degree in the whole green construction process of the foundation pit engineering.
(4) Aiming at the defects that the calculation process is complex and the software application is poor, green construction evaluation software of foundation pit engineering, which is compiled based on python and composed of a multi-language database, is developed and designed, and the software can be directly imported into a score excel form to directly obtain a score; the function provides certain reference and reference functions for the evaluation, analysis and process control of green construction of enterprises on each project department or foundation pit engineering professional sub-packaging unit 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 an embodiment of the invention;
FIG. 3 is a first month green construction total score provided by an embodiment of the present invention;
FIG. 4 is a tenth month green construction score provided by an embodiment of the present invention;
FIG. 5 is a graph of total score and green shade variation according to an embodiment of the present invention;
FIG. 6 is a "environmental protection" green degree variation curve according to an embodiment of the present invention;
FIG. 7 is a green degree variation curve of "construction management" according to an embodiment of the present invention;
FIG. 8 is a "material saving" green degree variation curve according to an embodiment of the present invention;
FIG. 9 is a "water saving" green degree variation curve according to the embodiment of the present invention;
FIG. 10 is a "power saving" green shade variation curve according to an embodiment of the present invention;
fig. 11 is a "green shade variation curve of a" green space "according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present examples, "first", "second", etc. are used for distinguishing different objects, and are not used for describing a specific 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 green construction evaluation index system of the foundation pit engineering, wherein the green construction evaluation index system of the foundation pit engineering comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes;
s2: determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index by the judgment matrix of each level of evaluation index;
s3: determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index;
s4: and obtaining comprehensive evaluation of each primary evaluation index according to the membership degree and the corresponding weight of each primary evaluation index, further obtaining a green construction score according to the comprehensive evaluation of each primary evaluation index, and further determining a 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, the reasonable index system is reserved, the unreasonable and overlapped part is deleted, and the green construction evaluation index system of the foundation pit engineering is established. As shown in fig. 2.
The first-level evaluation indexes include: environmental protection, construction management, material and material resource conservation, water and water resource utilization, energy and energy utilization and land and construction land protection;
the secondary evaluation indexes corresponding to the environmental protection comprise: environmental protection system measures, cultural relic protection and surrounding environment coordination, noise control, dust raising control, slurry control and treatment and waste gas and waste water control;
the secondary evaluation indexes corresponding to the construction management comprise: safety and management system, green construction organization design of deep foundation pit, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification review report;
the secondary evaluation indexes corresponding to the material saving and material resource utilization comprise: recycling and utilizing building excess materials and waste materials, saving materials and designing and selecting equipment materials;
the water conservation and water resource utilization corresponding secondary evaluation indexes comprise: a drainage system, a water supply system, new water-saving technology and equipment and water saving in daily life and office work;
the secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: the energy-saving new technology, the new equipment, the equipment inspection and maintenance and the energy conservation in life and office;
the secondary evaluation indexes corresponding to the land saving and construction land protection comprise: the influence of the excavation of the foundation pit on the peripheral land, the total layout and the construction scheme of the foundation pit are optimized, and the land and land resources for greening are obtained.
In the embodiment of the invention, the hierarchical Analysis (AHP) is selected by weight calculation of a green construction evaluation index system of the foundation pit engineering, and a judgment matrix (conventionally determined by a nine-level scaling method) of each level of indexes is calculated at first. The improvement is made on the basis of a nine-level scale method (the original comparison principle is shown in the table 1), and the invention adopts a score difference comparison method to determine the scale.
TABLE 1 nine-Scale comparison principles
The comparison of each level of evaluation index is changed into the comparison of the difference range between evaluation index scores (which can be the average value of a plurality of scores), a conventional nine-level scale is taken as a representative, the corresponding value is determined according to the range of the difference, and finally the judgment matrix of each level of evaluation index is obtained according to the value corresponding to the difference range, as shown in table 2.
TABLE 2 judge matrix dereferencing criteria
In the embodiment of the invention, importance comparison and weight value calculation are carried out on each evaluation index, namely, the eigenvector of the judgment matrix is solved
The calculation process is as follows:
the elements for B are normalized by the columns, i.e.:
n represents the number of rows and columns in the matrix.
To pair
Adding by rows to obtain:
To pair
Normalization yields:
b is a judgment matrix of a scoring matrix corresponding to the evaluation index;
bijjudging the ith row and the jth column element in the matrix B;
Kiweight values for the respective element hierarchy singles.
Thus, the weight of each level of evaluation indexes of green construction of the foundation pit engineering is calculated.
In the present example, the evaluation scale was divided into four scales, as shown in table 3.
TABLE 3 evaluation rating and description
| Grade | Description of the grade | Score range |
| Fail to be qualified | Does not conform to the green construction standard | [0，60) |
| One star | Achieve the basic requirements of green construction | [60，72) |
| Two stars | Exceeds the level of integral green construction | [72，85) |
| Three stars | All indexes reach the higher level of green construction | [85，100] |
Meanwhile, evaluation criteria are formulated for daily inspection and grading of green construction, as shown in tables 4 to 9.
TABLE 4 evaluation criteria for "environmental protection
TABLE 5 evaluation criteria for "construction management
TABLE 6 "materials saving" evaluation criteria
TABLE 7 evaluation criteria for "Water conservation
TABLE 8 evaluation criteria for "energy saving
TABLE 9 "land saving" evaluation criteria
The scoring principle is as follows:
1) the control item must meet the requirement, otherwise the secondary evaluation index is 0;
2) if the number of terms with the required score is less than 50% of the total number of terms, judging that the terms are unqualified;
3) if the number of terms with the required score is more than or equal to 50% of the total number of terms, determining that the score is one star;
4) if the number of terms with the required score is more than or equal to 75% of the total number of terms, determining that the terms are two stars;
5) if all the scores meet the requirements, judging the product to be three stars;
6) the inspector determines the specific score according to the implementation degree of the project element item, but the score is within the score range corresponding to the grade.
In the embodiment of the invention, the grade evaluation is carried out by adopting fuzzy comprehensive evaluation, the fuzzy comprehensive evaluation is to convert qualitative problems into quantitative calculation by adopting a membership degree principle, and the evaluation process is formulated as follows:
1) establishing and evaluating indexes of all levels
The index system is shown in figure 2, fuzzy comprehensive evaluation is adopted for the secondary evaluation index, and the primary index evaluation is integrated into { environmental protection, construction management, material and material resource utilization, water and water resource utilization, energy and energy utilization, land and construction land protection }, and is defined as follows
E＝{EA，EB，EC，ED，EE，EF} (4)
The following two-level index evaluation index set is defined in the same way:
and (3) environmental protection: a ═ A1，A2，A3，A4，A5，A6} (5)
Construction management: b ═ B1，B2，B3，B4，B5} (6)
Material saving and material resource utilization: c ═ C1，C2，C3} (7)
Water conservation and water resource utilization: d ═ D1，D2，D3，D4} (8)
Energy conservation and energy utilization: e ═ E1，E2，E3} (9)
Land saving and construction land protection: f ═ F1，F2，F3} (10)
2) Determining weights of indexes of each stage
The weight of each level index is calculated by the improved analytic hierarchy process, for example:
weight vector of primary index:
K＝[KA，KB，KC，KD，KE，KF] (11)
the secondary index weight vector is sequentially:
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 indicates environmental protection, construction management, material and material resource utilization, water conservation, water resource utilization, energy conservation, energy utilization, land conservation and construction land protection; kIjA weight vector representing the jth element in the I index, where I is A, B, C, D, E, F;
3) establishing a grade evaluation set
And (4) dividing the evaluation grade according to the score value range of the evaluation calculation, wherein Y is { unqualified, one star, two stars and three stars }, and the corresponding score value range is shown in table 3.
4) Membership calculation
Taking daily inspection scores during the construction period of the deep foundation pit engineering as judgment bases, obtaining a membership matrix which dynamically changes along with time according to the accumulated inspection scores, and determining final scores and grades, wherein the membership calculation process of the environmental protection indexes is shown in a table 10.
TABLE 10 degree of membership of "environmental protection" index
Namely, the calculation formula of the membership matrix of the environmental protection index is as follows:
5) comprehensive calculation
Environment-friendly construction comprehensive evaluation matrix
ZA＝kA·RA (19)
By the same token, Z can be calculatedB、ZC、ZD、ZE、ZF；
The first-level index combination comprehensive evaluation matrix Z is as follows:
Z＝K·R (20)
R＝[RA，RB，RC，RD，RE，RF]and a membership matrix formed by the membership of each primary evaluation index.
In the embodiment of the invention, the green construction score S is calculated as follows:
S＝Z·F (21)
where F is a coefficient matrix, which may be F ═ 55, 65, 75, 90]TThe four score values are reduced on the basis of the grade evaluation range, and meanwhile, the score values which meet the requirements of green construction are all improved, so that the construction related units are encouraged to comprehensively implement green construction, and the green construction evaluation grade is determined according to a formula 21 and a table 3.
The invention is explained by taking the example of establishing a green construction evaluation cycle inspection system of the foundation pit engineering, updating the score records in an Excel table and forming a field inspection score table. The site survey score table is shown in Table 11.
TABLE 11 on-site examination scoring table
In the embodiment of the invention, a graphical interface is adopted to design PyQt, mathematic judgment and math calculation, matrix calculation Numpy, reading and storing Pandas of table data, Matplotlib generation by a graph curve and other related program modules, and the analysis of expert scoring and weighting, checking of a score and membership matrix, fuzzy comprehensive evaluation score and grade and greenness is realized according to a green construction evaluation method of foundation pit engineering. The functions of data entry, automatic calculation, score display and data analysis are mainly realized. And importing the data into a table 11, and automatically reading and generating related calculation data to form a change curve of the green degree of the foundation pit construction along with time or in a construction stage. As shown in fig. 3-11, respectively. Fig. 3 is a first month green construction total score provided by the embodiment of the present invention; FIG. 4 is a tenth month green construction score provided by an embodiment of the present invention; FIG. 5 is a graph of total score and green shade variation according to an embodiment of the present invention; FIG. 6 is a "environmental protection" green degree variation curve according to an embodiment of the present invention; FIG. 7 is a green degree variation curve of "construction management" according to an embodiment of the present invention; FIG. 8 is a "material saving" green degree variation curve according to an embodiment of the present invention; FIG. 9 is a "water saving" green degree variation curve according to the embodiment of the present invention; FIG. 10 is a "power saving" green shade variation curve according to an embodiment of the present invention; fig. 11 is a "green shade variation curve of a" green space "according to an embodiment of the present invention.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A green construction evaluation method for foundation pit engineering is characterized by comprising the following steps:
establishing a green construction evaluation index system of the foundation pit engineering, wherein the green construction evaluation index system of the foundation pit engineering comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes;
determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index by the judgment matrix of each level of evaluation index;
determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index;
and obtaining comprehensive evaluation of each primary evaluation index according to the membership degree and the corresponding weight of each primary evaluation index, further obtaining a green construction score according to the comprehensive evaluation of each primary evaluation index, and further determining a green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is.
2. The method of claim 1, wherein the primary evaluation index comprises: environmental protection, construction management, material and material resource conservation, water and water resource utilization, energy and energy utilization and land and construction land protection;
the secondary evaluation indexes corresponding to the environmental protection comprise: environmental protection system measures, cultural relic protection and surrounding environment coordination, noise control, dust raising control, slurry control and treatment and waste gas and waste water control;
the secondary evaluation indexes corresponding to the construction management comprise: safety and management system, green construction organization design of deep foundation pit, green technology application and innovation, dynamic management and informatization construction and enterprise and personal qualification review report;
the secondary evaluation indexes corresponding to the material saving and material resource utilization comprise: recycling and utilizing building excess materials and waste materials, saving materials and designing and selecting equipment materials;
the secondary evaluation indexes corresponding to water conservation and water resource utilization comprise: a drainage system, a water supply system, new water-saving technology and equipment and water saving in daily life and office work;
the secondary evaluation indexes corresponding to energy conservation and energy utilization comprise: the energy-saving new technology, the new equipment, the equipment inspection and maintenance and the energy conservation in life and office;
the secondary evaluation indexes corresponding to the land saving and construction land protection comprise: the influence of the excavation of the foundation pit on the peripheral land, the total layout and the construction scheme of the foundation pit are optimized, and the land and land resources for greening are obtained.
3. The method according to claim 1 or 2, wherein determining the judgment matrix of each level of the evaluation index by using the difference between the scores of each level of the evaluation index comprises:
based on a nine-level scale method, the comparison of all levels of evaluation indexes in the nine-level scale method is changed into the difference value between the scores of all levels of evaluation indexes, corresponding values are determined according to the range of the interval where the difference value is located, and finally, the judgment matrix of all levels of evaluation indexes is obtained through the values corresponding to the range of the difference value.
4. The method according to claim 3, wherein obtaining the weight of each level of evaluation index from the judgment matrix of each level of evaluation index 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.
5. The method of claim 4, wherein determining the degree of membership of each primary evaluation index from the total score of the grade to which each secondary evaluation index corresponding to the primary evaluation index belongs comprises:
from RI＝[RIij],RIij＝MijDetermining the membership degree of each primary evaluation index, wherein RIDegree of membership, R, as a first-order evaluation index IIijIs the value of an element in the membership matrix, MijThe ith secondary evaluation index which is the primary evaluation index I belongs to the total score of the jth grade, and N is the total number of the inspection parts accumulated before the inspection period, wherein the higher the score of the secondary evaluation index corresponding to the primary evaluation index I is, the higher the grade of the secondary evaluation index is.
6. The method of claim 5, wherein obtaining the comprehensive evaluation of each primary evaluation index from the membership degree and the corresponding weight of each primary evaluation index comprises:
from ZI＝kI·RIObtaining the comprehensive evaluation of each first-level evaluation index, wherein ZIIs a comprehensive evaluation score, k, of a primary evaluation index IIIs the weight of the first-order evaluation index I, RIIs the membership degree of the first-level evaluation index I.
7. The method of claim 6, wherein the step of obtaining a green construction grade from the comprehensive evaluation of each primary evaluation index to determine a green construction evaluation grade comprises:
obtaining a primary index combination comprehensive evaluation matrix Z by comprehensive evaluation of each primary evaluation index by Z-K.R, wherein K is a weight matrix consisting of the weights of each primary evaluation index, and R is a membership matrix consisting of the membership degrees of each primary evaluation index;
and obtaining a green construction score S from the S-Z-F, wherein F is a coefficient matrix.
8. The utility model provides a green construction evaluation system of foundation ditch engineering which characterized in that includes:
the system comprises an index system construction module, a data processing module and a data processing module, wherein the index system construction module is used for constructing a green construction evaluation index system of the foundation pit engineering, and the green construction evaluation index system of the foundation pit engineering comprises primary evaluation indexes and secondary evaluation indexes corresponding to the primary evaluation indexes;
the weight determining module is used for determining a judgment matrix of each level of evaluation index by adopting the difference value between the grades of each level of evaluation index, and further obtaining the weight of each level of evaluation index according to the judgment matrix of each level of evaluation index;
the membership degree determining module is used for determining the membership degree of each primary evaluation index according to the total score of the grade of each secondary evaluation index corresponding to the primary evaluation index;
and the construction evaluation module is used for obtaining the comprehensive evaluation of each primary evaluation index according to the membership degree and the corresponding weight of each primary evaluation index, further obtaining a green construction score according to the comprehensive evaluation of each primary evaluation index, and further determining a green construction evaluation grade, wherein the higher the green construction score is, the higher the green construction evaluation grade is.
9. 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 steps of the method of any of claims 1 to 7 are implemented by the processor when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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