Method for evaluating waterproof performance of spraying type waterproof membrane

Abstract

The invention discloses a spraying type waterproof membrane waterproof performance evaluation method, which comprises the steps of obtaining influence factors of a spraying type waterproof membrane, and obtaining corresponding evaluation indexes based on the influence factors; constructing an index evaluation system based on the influence factors and the evaluation indexes; establishing a fuzzy comprehensive evaluation model of the waterproof performance of the spraying type waterproof membrane by adopting a fuzzy secondary comprehensive evaluation method; and evaluating the index evaluation system by using the fuzzy comprehensive evaluation model to obtain the waterproof performance of the spraying type waterproof membrane material. According to the method for evaluating the waterproof performance of the spraying type waterproof membrane, the waterproof performance of the spraying type waterproof membrane can be quantitatively evaluated, so that the problem of water leakage of a tunnel is effectively prevented, and a theoretical basis is provided for popularization and application of the spraying type waterproof membrane in the tunnel and underground engineering.

Description

Technical Field

[0001] The invention belongs to the field of tunnel waterproofing and drainage, and in particular relates to a method for evaluating the waterproof performance of a spray-type waterproof membrane. Background Art

[0002] At present, with the rapid development of tunnels and underground projects in my country, the problem of tunnel water leakage is still a difficult problem to solve.

[0003] In order to solve the technical problem of tunnel leakage prevention, the current waterproofing method of composite lining tunnels in my country is to lay a layer of polymer board between the primary support of shotcrete and the secondary lining of cast concrete to achieve the purpose of waterproofing. However, from the actual waterproofing effect, it is not difficult to find that there are some defects in its use function, which leads to serious leakage in the tunnel. The construction environment in the tunnel is generally relatively harsh, which leads to many problems in the performance of the tunnel waterproof board, resulting in a large amount of water seepage before the tunnel is completed. Therefore, a new type of spray film waterproofing method is proposed to replace the polymer membrane. This technology is easy to construct, close to the base surface, can effectively waterproof, and has broad application prospects.

[0004] Although the spraying waterproofing technology has demonstrated its leading technology in the application of tunnel engineering, there are not many engineering examples in China. Therefore, there is insufficient research and understanding on the waterproofing mechanism and waterproofing performance of the spraying waterproofing materials in the tunnel lining structure. In view of this, the existing technology has not yet formed a good evaluation system for reference. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a method for evaluating the waterproof performance of a spray-coated waterproof membrane, forming a good evaluation system for reference.

[0006] To achieve the above object, the present invention provides a method for evaluating the waterproof performance of a spray-coated waterproof membrane, comprising:

[0007] Obtaining influencing factors of the spray-type waterproof membrane, and obtaining corresponding evaluation indicators based on the influencing factors;

[0008] Based on the influencing factors and evaluation indicators, an indicator evaluation system is constructed;

[0009] The fuzzy two-level comprehensive evaluation method is used to establish a fuzzy comprehensive evaluation model for the waterproof performance of spray-applied waterproof membranes.

[0010] The fuzzy comprehensive evaluation model is used to evaluate the index evaluation system to obtain the waterproof performance of the spray-type waterproof membrane material.

[0011] Optionally, the influencing factors include: surface characteristics, mechanical properties, static waterproof properties and dynamic waterproof properties of the waterproof membrane.

[0012] Optionally, the evaluation index includes: a waterproof membrane surface characteristic evaluation index, a mechanical performance evaluation index, a static waterproof performance evaluation index, and a dynamic waterproof performance evaluation index;

[0013] The evaluation index of the surface characteristics of the waterproof membrane includes: waterproof membrane thickness and waterproof membrane appearance;

[0014] The evaluation indexes of the mechanical properties include: tensile strength, elongation at break and tear strength;

[0015] The evaluation indexes of the static waterproof performance include: corrosion resistance and impermeability;

[0016] The evaluation indexes of the dynamic waterproof performance include: tensile failure mode and compressive failure mode.

[0017] Optionally, using the fuzzy comprehensive evaluation model to evaluate the index evaluation system to obtain the waterproof performance of the spray-coated waterproof membrane material includes:

[0018] Based on the influencing factors and evaluation indicators, establish an evaluation indicator set;

[0019] Establish a review set based on the performance of the spray-applied waterproof membrane;

[0020] Determine the weight distribution by using the analytic hierarchy process, and establish a weight set according to the evaluation index set;

[0021] Determining a membership function, and constructing a membership matrix based on the membership function;

[0022] Based on the comment set, combined with the weight set and the membership matrix, the waterproof performance of the spray-applied waterproof membrane material is obtained.

[0023] Optionally, the evaluation index set includes: a first evaluation index set and a second evaluation index set;

[0024] The first evaluation index set is an influencing factor layer evaluation index set;

[0025] The second evaluation index set is an index layer evaluation index set.

[0026] Optionally, establishing a weight set according to the evaluation indicator set includes:

[0027] The weight distribution was determined by using the analytic hierarchy process, and the importance was ranked by using the expert survey method;

[0028] Based on the importance and weight distribution, the weight set is established in combination with the evaluation indicator set.

[0029] Optionally, constructing a membership matrix based on the membership function includes:

[0030] Constructing a membership function according to the evaluation index set;

[0031] Obtaining an actual evaluation index value, and bringing the actual evaluation index value into the membership function to obtain a single factor membership vector of the evaluation index;

[0032] A membership matrix is ​​constructed based on the single factor membership vector.

[0033] Optionally, based on the comment set, combined with the weight set and the membership matrix, obtaining the waterproof performance of the spray-coated waterproof membrane material includes:

[0034] The membership matrix of the indicator layer to the influencing factor layer is multiplied by the weight matrix of the indicator layer to obtain the membership vector of the influencing factor to the comment set;

[0035] Based on the membership vector of the influencing factor to the comment set, a membership matrix is ​​obtained, and the membership matrix is ​​multiplied by the weight matrix of the influencing factor layer to obtain the membership vector of the waterproof performance of the spray-applied waterproof membrane to the comment set;

[0036] The membership vector of the spray-type waterproof membrane waterproof performance to the comment set is converted into a single value, and the single value is evaluated to obtain the waterproof performance of the spray-type waterproof membrane material.

[0037] Compared with the prior art, the present invention has the following advantages and technical effects:

[0038] The method for evaluating the waterproof performance of a spray-coated waterproof membrane of the present invention can quantitatively evaluate the waterproof performance of a spray-coated waterproof membrane. With scientific data support, the waterproof effect of the spray-coated waterproof membrane in practical applications can be fully understood, the quality of on-site spray-coated waterproofing can be effectively improved, and accurate guidance can be provided for engineering design and construction. This effectively prevents tunnel water leakage and provides a theoretical basis for the promotion and application of spray-coated waterproof layers in tunnels and underground projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 This is a flow chart of a method for evaluating the waterproof performance of a spray-type waterproof membrane according to an embodiment of the present invention;

[0041] Figure 2 A flow chart of evaluating an evaluation system according to an embodiment of the present invention;

[0042] Figure 3 It is a membership function diagram of the indicator film thickness according to the embodiment of the present invention. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0045] The present invention proposes a method for evaluating the waterproof performance of a spray-coated waterproof membrane. Figure 1 As shown, the specific steps include:

[0046] Obtain influencing factors of the spray-type waterproof membrane, and obtain corresponding evaluation indicators based on the influencing factors;

[0047] Construct an indicator evaluation system based on influencing factors and evaluation indicators;

[0048] The fuzzy two-level comprehensive evaluation method is used to establish a fuzzy comprehensive evaluation model for the waterproof performance of spray-applied waterproof membranes.

[0049] The fuzzy comprehensive evaluation model is used to evaluate the index evaluation system and obtain the waterproof performance of the spray-applied waterproof membrane material.

[0050] Furthermore, the influencing factors include: surface characteristics of the waterproof membrane, mechanical properties, static waterproof properties and dynamic waterproof properties.

[0051] Further, the evaluation indexes include: evaluation index of waterproof membrane surface characteristics, evaluation index of mechanical properties, evaluation index of static waterproof performance and evaluation index of dynamic waterproof performance;

[0052] The evaluation indexes of waterproof membrane surface characteristics include: waterproof membrane thickness and waterproof membrane appearance;

[0053] Evaluation indicators of mechanical properties include: tensile strength, elongation at break and tear strength;

[0054] The evaluation indicators of static waterproof performance include: corrosion resistance and impermeability;

[0055] The evaluation indicators of dynamic waterproof performance include: tensile failure mode and compressive failure mode.

[0056] Furthermore, the fuzzy comprehensive evaluation model is used to evaluate the index evaluation system, and the waterproof performance of the spray-applied waterproof membrane material is obtained, including:

[0057] Based on the influencing factors and evaluation indicators, establish an evaluation indicator set;

[0058] Establish a review set based on the performance of the spray-applied waterproof membrane;

[0059] The weight distribution is determined by using the analytic hierarchy process, and the weight set is established according to the evaluation index set;

[0060] Determine the membership function, and construct the membership matrix based on the membership function;

[0061] Based on the comment set, combined with the weight set and the membership matrix, the waterproof performance of the spray-applied waterproof membrane material is obtained.

[0062] Further, the evaluation index set includes: a first evaluation index set and a second evaluation index set;

[0063] The first evaluation index set is the evaluation index set of the influencing factor layer;

[0064] The second evaluation index set is an index layer evaluation index set.

[0065] Furthermore, establishing a weight set according to the evaluation index set includes:

[0066] The weight distribution was determined by using the analytic hierarchy process, and the importance was ranked by using the expert survey method;

[0067] Based on the importance and weight distribution, a weight set is established by combining the evaluation indicator set.

[0068] Furthermore, constructing a membership matrix based on the membership function includes:

[0069] Construct membership functions based on the evaluation index set;

[0070] Obtain the actual evaluation index value, and bring the actual evaluation index value into the membership function to obtain the single factor membership vector of the evaluation index;

[0071] Construct a membership matrix based on the single-factor membership vector.

[0072] Furthermore, based on the comment set, combined with the weight set and the membership matrix, the waterproof performance of the spray-applied waterproof membrane material is obtained, including:

[0073] The membership matrix of the indicator layer to the influencing factor layer is multiplied by the weight matrix of the indicator layer to obtain the membership vector of the influencing factor to the comment set;

[0074] Based on the membership vector of the influencing factors to the comment set, a membership matrix is ​​obtained, and the membership matrix is ​​multiplied by the weight matrix of the influencing factor layer to obtain the membership vector of the waterproof performance of the spray-applied waterproof membrane to the comment set;

[0075] The membership vector of the spray-type waterproof membrane waterproof performance to the comment set is converted into a single value, and the single value is evaluated to obtain the waterproof performance of the spray-type waterproof membrane material.

[0076] Example

[0077] like Figure 2 As shown, this embodiment proposes a method for evaluating the waterproof performance of a spray-coated waterproof membrane, comprising:

[0078] Determine the factors that affect the waterproof performance of spray-applied waterproof membranes and obtain evaluation indicators based on the impact;

[0079] Based on influencing factors and evaluation indicators, a three-layer indicator evaluation system is constructed, namely the criterion layer, the influencing factor layer and the indicator layer;

[0080] A two-level fuzzy comprehensive evaluation model was used to evaluate the three-layer index evaluation system layer by layer from low to high levels to obtain the waterproof performance of the spray-applied waterproof membrane.

[0081] A represents the waterproof performance of the spray-applied waterproof membrane, B1 represents the surface characteristics, B2 represents the mechanical characteristics, B3 represents the structural waterproof characteristics, and B4 represents the body waterproof characteristics. The waterproof performance of the spray-applied waterproof membrane can be expressed by the following formula:

[0082] A=f(B1,B2,B3,B4)

[0083] The evaluation index of the waterproof performance of the spray-on waterproof membrane is obtained through various influencing factors, and the evaluation index should be quantifiable and operable. Due to the complexity of the waterproof membrane material, the various influencing factors will affect each other. For example, under the determined surface characteristic index of the waterproof membrane material, the mechanical properties of the waterproof membrane, the waterproof performance of the body, etc. will affect the waterproof performance of the structure. This embodiment is simplified to a certain extent, assuming that the various influencing factors do not affect each other.

[0084] The film appearance C 11 and film thickness C 12 As an evaluation index of surface properties; mechanical properties include tensile strength C 21 , elongation at break C 22 , tear strength C 23 ; Structural waterproof properties include tensile strength C 31 and compressive strength C 32 The waterproof properties of the main body include the anti-seepage capacity C4. After clarifying the quantitative method of each influencing factor, it can be obtained Figure 1 The waterproof performance evaluation system of spray-type waterproof materials and the evaluation table shown in Table 1.

[0085] Table 1

[0086]

[0087] Before specific evaluation, we first define the spray-type waterproof membrane waterproof performance scoring evaluation table, as shown in Table 2, using a 4-level evaluation, where IPR represents the spray-type waterproof membrane waterproof performance score. Through research on engineering data, field test measurements and related theoretical research, we can obtain the classification standards for the corresponding evaluation indicators at each evaluation level shown in Table 3.

[0088] Table 2

[0089]

[0090]

[0091] Table 3

[0092]

[0093] Film appearance coefficient C 11 The values ​​can be taken according to Table 4;

[0094] Table 4

[0095]

[0096]

[0097] This evaluation system belongs to a three-level indicator system, which requires the use of a two-level fuzzy comprehensive evaluation model to evaluate layer by layer from low to high levels. The evaluation steps are as follows:

[0098] 1. Establish an evaluation index set; establish a two-layer index set based on the evaluation system. The first layer is the influencing factor layer, and the second layer is the index layer. The set is expressed as:

[0099]

[0100] 2. Establish a comment set; according to the waterproof performance of the waterproof membrane, the comment set is:

[0101] V={v1,v2,v3,v4}={excellent,good,fair,poor}={4,3,2,1}

[0102] 3. Establish a weight set;

[0103] The weights are calculated using the analytic hierarchy process, also known as the AHP method. When using this method to determine the weights, the factors should be expanded into multiple levels one by one according to the actual project characteristics, covering primary indicators, secondary indicators, etc., and the importance should be ranked using expert survey methods.

[0104] (1) Constructing a judgment matrix

[0105] The judgment matrix is ​​established by using the 1 to 9 scale method, that is, multiple factors or strategies are compared and evaluated. ijis the ratio of the importance of the i-th and j-th strategies. The importance levels and their values ​​are shown in Table 5. Finally, the matrix A = (a ij ) n×n .

[0106] Table 5

[0107]

[0108]

[0109] The judgment matrix A is

[0110]

[0111] (2) Calculation of weights

[0112] To solve the judgment matrix A, first calculate the eigenvector of the matrix. The calculation formula is

[0113]

[0114] Then calculate the maximum eigenvalue λ of the judgment matrix max , the calculation formula is

[0115]

[0116] Among them, W i and Wj are matrix eigenvectors, a ij is the matrix element, i, j: the number of rows, and n: the number of columns.

[0117] (3) Consistency test of judgment matrix

[0118] The consistency test of the judgment matrix uses the CR (CR = CI / RI) value to complete the judgment. When CR < 0.1, it means that there is consistency, otherwise the judgment matrix will be revised. CI is calculated by the formula n is the order of the judgment matrix; the matrix average random consistency index RI is shown in Table 6.

[0119] Table 6

[0120]

[0121] In this embodiment, the order of importance of the influencing factors is mechanical properties, body waterproof properties, surface waterproof properties, and structural waterproof properties. The weights of the influencing factors are shown in Table 7.

[0122] Table 7

[0123]

[0124]

[0125] Similarly, the weights of other indicators can be obtained, and the weight set is:

[0126]

[0127] 4. Establish membership matrix;

[0128] To establish a membership matrix, it is necessary to determine the membership function. Commonly used membership functions include ridge function, normal function, triangular fuzzy function and trapezoidal function, etc. Generally speaking, the fuzzy membership functions constructed by different evaluation indicators are different. If the values ​​of each indicator in the actual project are obtained, the corresponding membership function can be substituted according to Table 3 to obtain the corresponding single factor membership vector of each indicator, and the membership matrix can be established from the single factor membership vector.

[0129] 5. Evaluation;

[0130] (1) First-level fuzzy comprehensive evaluation

[0131] The first-level fuzzy comprehensive evaluation is the index layer C in Table 2 ij Influencing factor layer B i The membership matrix R i4 (“4” means there are 4 columns in the matrix, corresponding to 4 evaluation levels) and its weight matrix ω Ci The product of each influencing factor B can be obtained. i Membership vector R for the review set V Bi Under this evaluation system, the first-level fuzzy comprehensive evaluation is shown in the following formulas:

[0132]

[0133]

[0134] In the formula, is the membership degree of each indicator obtained by the membership function in actual situation.

[0135] (2) Secondary fuzzy comprehensive evaluation

[0136] Secondary fuzzy comprehensive evaluation refers to the first-level fuzzy comprehensive evaluation result R Bi Considered as a single factor evaluation set, and combined to obtain the membership matrix R, which is combined with the weight vector ω B Multiplying them together, we get the evaluation result of this level - the membership vector S of the waterproof performance of the waterproof membrane to the comment set, as shown in the following formula:

[0137]

[0138] (3) Fuzzy vector unification

[0139] According to the percentage scoring method proposed in Table 2, based on the weighted average principle, the mud transport performance can be quantified into a specific value IPR through the following formula. According to the calculated IPR value, the final result can be obtained by looking up Table 2 to evaluate the waterproof performance of the waterproof membrane. The larger the value, the better the waterproof performance of the waterproof membrane.

[0140]

[0141] 90≤IPR≤100, the waterproof performance of the waterproof membrane is excellent; 80≤IPR<90, the waterproof performance of the waterproof membrane is good; 70≤IPR<80, the waterproof performance of the waterproof membrane is medium; IPR<70, the waterproof performance of the waterproof membrane is poor.

[0142] Example 2

[0143] This embodiment provides a method for evaluating the waterproof performance of polymer-based spray waterproof materials. The method is based on fuzzy theory and uses a "percentage rating system" to evaluate the waterproof performance of waterproof membranes. The evaluation method can quantitatively evaluate the waterproof performance of waterproof membranes. The specific steps include: 1. Establishing an evaluation index set 2. Establishing a comment set 3. Establishing a weight set 4. Establishing a membership matrix 5. Evaluating

[0144] In one embodiment, the tunnel passes through moderately weathered marl, limestone, and argillaceous sandstone, and the waterproof performance of the waterproof membrane in this section is evaluated.

[0145] Through field investigation, the current status of the surface characteristics of the on-site waterproof membrane was obtained. It was found that the waterproof membrane material accumulated on the ground was small, the membrane thickness was 3.3mm, the overall thickness was basically continuous and uniform, and the rebound amount was small, so it can be considered that the membrane appearance coefficient was about 0.28. Through the mechanical property test of the waterproof material, it can be obtained that its tensile strength is 3.6MPa, the elongation at break is 208%, and the tear strength is 8.1MPa. Through the on-site core sampling test, its anti-seepage ability was measured to be 2.6MPa, the tensile strength was 0.76MPa, and the compressive strength was 38MPa. In summary, the parameter values ​​of each evaluation index are shown in Table 8.

[0146] Table 8

[0147]

[0148] After obtaining Table 8, the membership matrix can be obtained by constructing the membership function. In fuzzy evaluation, the boundary point between two adjacent phases in a multiphase fuzzy set is considered to be the most fuzzy point, while the midpoint of the segment is the clearest point in the fuzzy set. The fuzzy comment membership of this point is 1, and the adjacent fuzzy comment membership is 0. In fuzzy evaluation, the midpoint of the segment is usually considered to be the clearest point in the fuzzy set. The evaluation method of this embodiment uses a combination of wide domain and narrow domain to construct a membership function, and selects a triangular function as the membership function.

[0149] For the continuous membership function, assume that the membership function is u(x), such as Figure 3 As shown, the following takes the film thickness as an example to explain. The research factor range value is divided into 4 levels. For the first level, the endpoint of the division is x≤2, and the endpoint of the last level is x>3. For the first interval and the last interval, the wide range method is used. For the first level, the actual interval is [0,2], and the midpoint is For the first level interval, according to the fuzzy membership principle, in the range of [0, a0 = 2 / 2 = 1], let In the interval [1,2], the specific expression of u(x) is determined according to the conditions u(1)=1,u(2)=0.5 For the second level interval [2,2.5], the specific expression of u(x) is determined using the conditions u(2) = 0.5, u(2.25) = 1 According to the principle that the total membership is 1, we get Similarly, the membership function of each fuzzy level in the subsequent interval can be obtained. In the example project, the film thickness is 3.3, and the membership matrix of this indicator can be obtained as follows:

[0150]

[0151] Similarly, the membership matrix of other indicators can be obtained:

[0152]

[0153]

[0154] Since the membership function of the film appearance is discrete, its membership value is determined by the membership value table. The values ​​in the table are obtained by expert judgment and fuzzy statistics, as shown in Table 9:

[0155] Table 9

[0156]

[0157]

[0158] Right now

[0159]

[0160] R 44 ={0.580.420 0}

[0161] After obtaining the above membership matrix, evaluation can be performed:

[0162] ① First-level fuzzy comprehensive evaluation: Under the evaluation method of this embodiment, the first-level fuzzy comprehensive evaluation results are shown in the following formulas.

[0163]

[0164]

[0165] (② Secondary fuzzy comprehensive evaluation; Under the evaluation system of this embodiment, the result of secondary fuzzy comprehensive evaluation is shown in the following formula:

[0166]

[0167] If the principle of maximum membership degree is adopted, the score of the mud conveying performance can be obtained as:

[0168]

[0169] Looking up Table 2, it can be obtained that 80 < IPR = 87.7 < 90, indicating that the waterproof performance of the spray film waterproof material in this section is good, which meets the characteristics of the construction site where people often stay and is important in this section.

[0170] The above is only the preferred specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in this application should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A method for evaluating the waterproof performance of a spray-coated waterproof membrane, characterized in that: include: Obtaining influencing factors of the spray-type waterproof membrane, and obtaining corresponding evaluation indicators based on the influencing factors; Based on the influencing factors and evaluation indicators, an indicator evaluation system is constructed; The fuzzy two-level comprehensive evaluation method is used to establish a fuzzy comprehensive evaluation model for the waterproof performance of spray-applied waterproof membranes. The fuzzy comprehensive evaluation model is used to evaluate the index evaluation system to obtain the waterproof performance of the spray-type waterproof membrane material.

2. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 1, characterized in that: The influencing factors include: surface characteristics, mechanical properties, static waterproof properties and dynamic waterproof properties of the waterproof membrane.

3. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 2, characterized in that: The evaluation indexes include: waterproof membrane surface characteristic evaluation index, mechanical performance evaluation index, static waterproof performance evaluation index and dynamic waterproof performance evaluation index; The evaluation index of the surface characteristics of the waterproof membrane includes: waterproof membrane thickness and waterproof membrane appearance; The evaluation indexes of the mechanical properties include: tensile strength, elongation at break and tear strength; The evaluation indexes of the static waterproof performance include: corrosion resistance and impermeability; The evaluation indexes of the dynamic waterproof performance include: tensile failure mode and compressive failure mode.

4. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 1, characterized in that: The fuzzy comprehensive evaluation model is used to evaluate the index evaluation system to obtain the waterproof performance of the spray-coated waterproof membrane material, including: Based on the influencing factors and evaluation indicators, establish an evaluation indicator set; Establish a review set based on the performance of the spray-applied waterproof membrane; Determine the weight distribution by using the analytic hierarchy process, and establish a weight set according to the evaluation index set; Determining a membership function, and constructing a membership matrix based on the membership function; Based on the comment set, combined with the weight set and the membership matrix, the waterproof performance of the spray-applied waterproof membrane material is obtained.

5. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 4, characterized in that: The evaluation index set includes: a first evaluation index set and a second evaluation index set; The first evaluation index set is an evaluation index set of the influencing factor layer; The second evaluation index set is an evaluation index set of the index layer.

6. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 4, characterized in that: Establishing a weight set according to the evaluation index set includes: The weight distribution was determined by using the analytic hierarchy process, and the importance was ranked by using the expert survey method; Based on the importance and weight distribution, the weight set is established in combination with the evaluation indicator set.

7. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 4, characterized in that: Constructing a membership matrix based on the membership function includes: According to the evaluation index set, a membership function is constructed by a triangular function in a manner of combining a wide domain with a narrow domain; Obtaining an actual evaluation index value, and bringing the actual evaluation index value into the membership function to obtain a single factor membership vector of the evaluation index; A membership matrix is ​​constructed based on the single factor membership vector.

8. A method for evaluating the waterproof performance of a spray-coated waterproof membrane according to claim 5, characterized in that: Based on the comment set, combined with the weight set and the membership matrix, the waterproof performance of the spray-coated waterproof membrane material is obtained, including: The membership matrix of the indicator layer to the influencing factor layer is multiplied by the weight matrix of the indicator layer to obtain the membership vector of the influencing factor to the comment set; Based on the membership vector of the influencing factor to the comment set, a membership matrix is ​​obtained, and the membership matrix is ​​multiplied by the weight matrix of the influencing factor layer to obtain the membership vector of the waterproof performance of the spray-applied waterproof membrane to the comment set; The membership vector of the spray-type waterproof membrane waterproof performance to the comment set is converted into a single value, and the single value is evaluated to obtain the waterproof performance of the spray-type waterproof membrane material.

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