Tailing cemented filling body overall quality evaluation method, device, equipment and medium

Abstract

The invention discloses a method, a device, equipment and a medium for evaluating the overall quality of a tailing cemented filling body, and relates to the technical field of filling materials. The method comprises the following steps: obtaining quality evaluation parameters of n samples corresponding to filling slurry to be evaluated in a preset curing period; the maintenance conditions of the samples are the same; performing discrete analysis according to a first preset weight coefficient and each quality evaluation parameter to obtain an expansion degree quality factor, a compressive strength quality factor, a tensile strength quality factor, a segregation degree quality factor and a cement content quality factor of the to-be-evaluated filling slurry; and performing weighted summation according to a second preset weight coefficient, the expansion degree quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation degree quality factor and the cement content quality factor to obtain overall quality evaluation quantitative characterization of the to-be-evaluated filling slurry. Therefore, the quality evaluation parameters are comprehensively analyzed through the preset weight coefficient to evaluate the quality of the mine filling body, and guidance is provided for safe mining.

Description

Technical Field

[0001] The present invention relates to the technical field of filling materials, and in particular to a method, device, equipment and medium for evaluating the overall quality of a tailings cemented filling body. Background Art

[0002] The commonly used filling method in domestic mines currently is to mix tailings, cement and other materials with water in a certain proportion to prepare a filling slurry, which is then transported underground through pipelines. The filling slurry contains a variety of solid materials such as tailings aggregate and binder.

[0003] However, external factors such as the basic physical and chemical properties of the filling slurry raw materials, gravity, and agitation can affect the quality of the filling to varying degrees, thereby affecting the filling effect and posing a hidden danger to mine safety. For a long time, there has been no unified technical standard or specification for the evaluation and characterization of filling quality. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide a method, device, equipment and medium for evaluating the overall quality of tailings cemented filling bodies, which are used to characterize the overall quality of tailings cemented filling bodies by studying the diffusion degree of filling slurry, the compressive strength of the filling body, the tensile strength of the filling body, the segregation degree of the filling body and the cement content, and using multi-factor analysis.

[0005] The present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a method for evaluating the overall quality of a tailings cemented filling body, comprising:

[0007] Obtaining quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include expansion, compressive strength, tensile strength, segregation, and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same;

[0008] Performing discrete analysis based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor, and cement content quality factor of the filling slurry to be evaluated;

[0009] A weighted summation is performed based on the second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

[0010] In one embodiment, the discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor of the filling slurry to be evaluated, including:

[0011] The spread quality factor is calculated according to formula (1);

[0012] Formula (1):

[0013] Where S s is the spread quality factor, is the expansion of the i-th group of samples, is the average expansion of all samples, and α and β are the first preset weight coefficients.

[0014] In one embodiment, a discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the compressive strength quality factor of the filling slurry to be evaluated, including:

[0015] The compressive strength quality factor is calculated according to formula (2);

[0016] Formula (2):

[0017] Where S c is the compressive strength quality factor, is the compressive strength of the i-th group of samples, is the average compressive strength of all samples.

[0018] In one embodiment, a discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the tensile strength quality factor of the filling slurry to be evaluated, including:

[0019] Calculate the tensile strength quality factor according to formula (3);

[0020] Formula (3):

[0021] Where S p is the tensile strength quality factor, is the tensile strength of the filling body of the i-th group of samples, is the average tensile strength of all samples.

[0022] In one embodiment, a discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the segregation quality factor of the filling slurry to be evaluated, including:

[0023] Calculate the segregation quality factor according to formula (4);

[0024] Formula (4):

[0025] Where S p is the segregation quality factor, is the segregation degree of the i-th group of samples, is the average segregation degree of all samples.

[0026] In one embodiment, a discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the cement content quality factor of the filling slurry to be evaluated, including:

[0027] Calculate the cement content quality factor according to formula (5);

[0028] Formula (5):

[0029] Where S p is the cement content quality factor, is the cement content of the i-th group of samples, is the average cement content of all samples.

[0030] In one embodiment, the method further comprises:

[0031] The quality grade of the filling slurry to be evaluated is determined based on a preset grading threshold and the overall quality of the cemented filling body.

[0032] In a second aspect, the present invention provides a device for evaluating the overall quality of a tailings cemented filling body, comprising:

[0033] an acquisition module, configured to acquire quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation, and cement content of the filling slurry to be evaluated; and the curing conditions of the samples are the same;

[0034] a discrete module, configured to perform discrete analysis based on a first preset weight coefficient and each of the quality evaluation parameters to obtain an expansion quality factor, a compressive strength quality factor, a tensile strength quality factor, a segregation quality factor, and a cement content quality factor of the filling slurry to be evaluated;

[0035] A weighting module is used to perform weighted summation based on a second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

[0036] In a third aspect, the present invention proposes a computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for evaluating the overall quality of a tailings cemented filling body as described in the first aspect is implemented.

[0037] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for evaluating the overall quality of a tailings cemented filling body as described in the first aspect.

[0038] The overall quality evaluation method, device, equipment and medium of tailings cemented filling body disclosed in the present invention obtain quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same; a discrete analysis is performed based on a first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor of the filling slurry to be evaluated; a weighted sum is performed based on a second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated. In this way, the quality evaluation parameters are comprehensively analyzed through preset weight coefficients to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor, which can help mines understand the actual mechanical properties of the filling body in the mining area, conduct mine filling body quality assessment, and provide guidance for safe mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope of protection of the present invention. In each of the drawings, similar components are numbered similarly.

[0040] Figure 1 A schematic flow chart of the overall quality evaluation method for tailings cemented filling bodies proposed in this embodiment is shown;

[0041] Figure 2 A schematic diagram showing the quality evaluation parameters proposed in this embodiment is shown;

[0042] Figure 3 A structural schematic diagram of the overall quality evaluation device for tailings cemented filling body proposed in this embodiment is shown.

[0043] Description of the accompanying drawings:

[0044] 300 - overall quality evaluation device for tailings cemented filling body; 301 - acquisition module; 302 - discrete module; 303 - weighting module. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to be within the scope of protection of the present invention.

[0047] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present invention, are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0048] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0049] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the various embodiments of the present invention pertain. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meaning as in the context of the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present invention.

[0050] Example 1

[0051] The embodiment of the present disclosure provides a method for evaluating the overall quality of tailings-cemented filling bodies, which is used to characterize the overall quality of tailings-cemented filling bodies by studying the diffusion degree of filling slurry, the compressive strength of the filling body, the tensile strength of the filling body, the segregation degree of the filling body, and the cement content, using multi-factor analysis.

[0052] See Figure 1A method for evaluating the overall quality of a tailings cemented filling body includes steps S101 to S103, and each step is described in detail below.

[0053] Step S101, obtaining quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same.

[0054] In this embodiment, for the filling slurry to be evaluated, it is necessary to cure n samples according to the preset curing age and obtain the quality evaluation parameters of each sample. The quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation and cement content of the filling slurry to be evaluated, for example Figure 2 and the curing conditions of each specimen are the same.

[0055] It should be noted that the filling slurry to be evaluated should be prepared first. Specifically, according to the pre-designed filling slurry mix ratio, use an electronic balance to accurately weigh each raw material. For example, if the mix ratio is cement: fly ash: tailings = 1:2:4 (mass ratio), and it is planned to prepare 1000g of filling slurry, then weigh 142.9g of cement, 285.7g of fly ash, and 571.4g of tailings. At the same time, accurately measure the amount of water according to the designed water-cement ratio. For example, if the designed water-cement ratio is 0.5, then 71.45g of water (0.5×142.9) needs to be measured. If additives are used, their amount should also be accurately weighed. Pour the weighed dry materials such as cement, fly ash, and tailings into the mixing container and stir at low speed for 1-2 minutes to ensure that the dry materials are initially mixed evenly. Then, slowly add the measured amount of water and additives (if any), gradually increase the stirring speed to medium-high speed, and continue stirring for 3-5 minutes to ensure that the filling slurry reaches a uniform state without obvious particle agglomeration or stratification.

[0056] Furthermore, the filling slurry to be evaluated is cast. Specifically, the prepared mold is placed on a vibration table to ensure that the mold is firmly installed and will not be displaced or shaken during the vibration process. Slowly pour the stirred filling slurry into the mold, paying attention to pouring it from the center of the mold, so that the slurry flows naturally to the surroundings, and avoid directly impacting the mold wall, causing uneven slurry or bubbles. When the amount of slurry poured reaches about 1 / 3 of the height of the mold, turn on the vibration table and vibrate it at the set frequency and amplitude for 1-2 minutes to expel the air in the slurry and make the slurry initially dense. Then continue to pour the slurry to about 2 / 3 of the height of the mold and vibrate again for 1-2 minutes. Finally, fill the mold with slurry and vibrate it for a third time. The vibration time is controlled at 2-3 minutes until no bubbles appear on the surface of the slurry and the surface is basically flat. After the vibration is completed, use a spatula to scrape off the excess filling slurry on the surface of the mold to make the surface flush with the edge of the mold, and smooth it properly to ensure a smooth surface.

[0057] Furthermore, the specimens are cured under standard conditions. The formed specimens are placed together with the mold in a constant temperature and humidity curing box, and the temperature of the curing box is set to 20±2°C and the relative humidity is greater than 95% for initial curing. For cement-based filling slurry, the initial curing time is usually about 24 hours. This stage allows the filling slurry to initially solidify and harden. After the initial curing is completed, the specimen is carefully removed from the mold. Avoid damaging the specimen during demoulding, such as by gently tapping the mold or using demoulding tools to assist in demoulding. After demoulding, the specimen is returned to the curing box for standard curing. The curing age is determined according to the purpose of the experiment and the properties of the filling slurry. It is generally 7 days, 14 days, 28 days, etc., to simulate the performance of mine filling slurry at different ages.

[0058] Step S102 , performing discrete analysis based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor of the filling slurry to be evaluated.

[0059] In this embodiment, a discrete analysis is performed based on the first preset weight coefficient and various quality evaluation parameters to calculate the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor of the filling slurry to be evaluated, as shown in Table 1.

[0060] Table 1:

[0061] <![CDATA[S s ]]> <![CDATA[S c ]]> <![CDATA[S p ]]> <![CDATA[S d ]]> <![CDATA[S l ]]> S 0.094 0.142 0.025 0.068 0.043 0.372

[0062] Among them, the expansion quality factor measures the fluidity and self-leveling ability of the filling slurry, reflecting its uniformity in filling gaps during construction; the compressive strength quality factor evaluates the ability of the slurry to withstand vertical pressure after hardening; the tensile strength quality factor reflects the material's ability to resist tensile stress or cracking; the segregation quality factor characterizes the stability of the various components of the slurry, avoiding the stratification phenomenon of aggregate sinking and slurry floating after construction; the cement content quality factor measures the compliance of the actual amount of cement used in the mix with the design value, which directly affects cost and performance.

[0063] Step S103 , performing weighted summation based on the second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor, and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

[0064] In this embodiment, the second preset weight coefficient is used to perform weighted summation on the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor to obtain a quantitative representation of the comprehensive overall quality evaluation of the filling slurry to be evaluated, thereby comprehensively evaluating the expansion degree that reflects the filling density, the compressive strength that reflects the safety, the tensile strength that reflects the crack expansion, the segregation degree that reflects the uniformity of the reaction structure, and the cement content that reflects the shrinkage crack situation and strength situation to evaluate the filling slurry to be evaluated from multiple aspects, and then the performance of the filling slurry can be optimized by analyzing each quality factor.

[0065] For example, S = k s S s +k c S c +k p S p +k d S d +k l S l , where S is a quantitative representation of the overall quality evaluation of the filling slurry, S s is the quality factor of the expansion, S c is the compressive strength quality factor, S p is the tensile strength quality factor, S d is the segregation quality factor, S l is the cement content quality factor, k s 、k c 、k p 、k d 、k l S s 、S c 、S p 、S d 、s lThe corresponding second preset weight coefficient.

[0066] Among them, k s +k c +k p +k d +k l =1,k s 、k c 、k p 、k d 、k l The value of is affected by the aggregate and cementitious materials in the filling slurry. The specific value is:

[0067] In a specific embodiment, step S102 includes: calculating the spread quality factor according to formula (1); formula (1): Where S s is the spread quality factor, is the expansion of the i-th group of samples, is the average expansion of all samples, and α and β are the first preset weight coefficients.

[0068] In this embodiment, the coefficient of variation and the standardized mean absolute deviation are calculated based on the spread. The coefficient of variation is used to measure the relative volatility of the spread data, and the standardized mean deviation is used to measure the consistency of the spread data, thereby comprehensively considering the volatility and distribution pattern and avoiding the one-sidedness of a single indicator.

[0069] In a specific embodiment, step S102 includes: calculating the compressive strength quality factor according to formula (2); formula (2): Where S c is the compressive strength quality factor, is the compressive strength of the i-th group of samples, is the average compressive strength of all samples.

[0070] In this embodiment, the coefficient of variation and the standardized mean absolute deviation are calculated based on the compressive strength. The coefficient of variation is used to measure the relative volatility of the compressive strength data, and the standardized mean deviation is used to measure the consistency of the compressive strength data, thereby comprehensively considering the volatility and distribution pattern and avoiding the one-sidedness of a single indicator.

[0071] In a specific embodiment, step S102 includes: calculating the tensile strength quality factor according to formula (3); formula (3): Where S p is the tensile strength quality factor, is the tensile strength of the filling body of the i-th group of samples, is the average tensile strength of all samples.

[0072] In this embodiment, the coefficient of variation and the standardized mean absolute deviation are calculated based on the tensile strength. The coefficient of variation is used to measure the relative volatility of the tensile strength data, and the standardized mean deviation is used to measure the consistency of the tensile strength data, thereby comprehensively considering the volatility and distribution pattern and avoiding the one-sidedness of a single indicator.

[0073] In a specific embodiment, step S102 includes: calculating the segregation quality factor according to formula (4); formula (4): Where S p is the segregation quality factor, is the segregation degree of the i-th group of samples, is the average segregation degree of all samples.

[0074] In this embodiment, the coefficient of variation and the standardized mean absolute deviation are calculated based on the segregation. The coefficient of variation is used to measure the relative volatility of the segregation data, and the standardized mean absolute deviation is used to measure the consistency of the segregation data. This allows for a comprehensive consideration of both volatility and distribution patterns, avoiding the one-sidedness of a single indicator.

[0075] In a specific embodiment, step S102 includes: calculating the cement content quality factor according to formula (5); formula (5): Where S p is the cement content quality factor, is the cement content of the i-th group of samples, is the average cement content of all samples.

[0076] In this embodiment, the coefficient of variation and the standardized mean absolute deviation are calculated based on the cement content. The coefficient of variation is used to measure the relative volatility of the cement content data, and the standardized mean deviation is used to measure the consistency of the cement content data, thereby comprehensively considering the volatility and distribution pattern and avoiding the one-sidedness of a single indicator.

[0077] It should be noted that the first preset weight coefficient can be flexibly adjusted according to the evaluation requirements. If α>β, priority can be given to controlling relative fluctuations (such as in cost-sensitive scenarios, it is necessary to avoid excessive fluctuations in material properties leading to waste); if β>α, priority can be given to ensuring distribution consistency (such as in safety-critical scenarios, it is necessary to avoid local strength deficiency causing structural failure); if α=β, volatility and consistency can be balanced (conventional quality control, taking into account both economy and safety). Specifically, if high stability is required, β can be increased (to enhance distribution consistency); if relative fluctuations need to be controlled, α can be increased (to enhance the coefficient of variation). Among them, α+β=1.

[0078] In a specific embodiment, the method further includes: determining the quality grade of the filling slurry to be evaluated based on a preset grading threshold and the overall quality of the cemented filling body.

[0079] In this embodiment, the quality grade of the filling slurry to be evaluated is determined according to a preset grading threshold and the overall quality of the cemented filling body, thereby intuitively indicating the overall quality of the cemented filling body.

[0080] For example, when S≤0.1, the overall quality of the filling is good; when 0.1<S≤0.25, the overall quality of the filling is relatively good; when 0.25<S≤0.4, the overall quality of the filling is average; when 0.4<S≤0.6, the overall quality of the filling is average; when S>0.6, the overall quality of the filling is very poor.

[0081] The overall quality evaluation method of tailings cemented filling body proposed in this embodiment obtains quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same; a discrete analysis is performed based on a first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor of the filling slurry to be evaluated; a weighted sum is performed based on a second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated. In this way, the quality evaluation parameters are comprehensively analyzed through preset weight coefficients to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor, which can help mines understand the actual mechanical properties of the filling body in the mining area, conduct mine filling body quality assessment, and provide guidance for safe mining.

[0082] Example 2

[0083] In addition, the embodiment of the present disclosure provides a device 300 for evaluating the overall quality of a tailings cemented filling body, see Figure 3 ,include:

[0084] An acquisition module 301 is configured to acquire quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation, and cement content of the filling slurry to be evaluated; and the curing conditions of the samples are the same;

[0085] A discrete module 302 is configured to perform discrete analysis based on a first preset weight coefficient and each of the quality evaluation parameters to obtain an expansion quality factor, a compressive strength quality factor, a tensile strength quality factor, a segregation quality factor, and a cement content quality factor of the filling slurry to be evaluated;

[0086] The weighting module 303 is used to perform weighted summation based on the second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

[0087] Optionally, the discrete module 302 is further configured to calculate the spread quality factor according to formula (1); formula (1): Where S s is the spread quality factor, is the expansion of the i-th group of samples, is the average expansion of all samples, and α and β are the first preset weight coefficients.

[0088] Optionally, the discrete module 302 is further configured to calculate the compressive strength quality factor according to formula (2); formula (2): Where S c is the compressive strength quality factor, is the compressive strength of the i-th group of samples, is the average compressive strength of all samples.

[0089] Optionally, the discrete module 302 is further configured to calculate the tensile strength quality factor according to formula (3); formula (3): Where S p is the tensile strength quality factor, is the tensile strength of the filling body of the i-th group of samples, is the average tensile strength of all samples.

[0090] Optionally, the discrete module 302 is further configured to calculate the segregation quality factor according to formula (4); formula (4): Where S p is the segregation quality factor, is the segregation degree of the i-th group of samples, is the average segregation degree of all samples.

[0091] Optionally, the discrete module 302 is further configured to calculate the cement content quality factor according to formula (5); formula (5): Where S p is the cement content quality factor, is the cement content of the i-th group of samples, is the average cement content of all samples.

[0092] Optionally, the device further includes a determination module for determining the quality grade of the filling slurry to be evaluated based on a preset grading threshold and the overall quality of the cemented filling body.

[0093] The device provided in the embodiment of the present disclosure can execute the steps of the method for evaluating the overall quality of the tailings cemented filling body provided in Example 1, which will not be described again to avoid repetition.

[0094] The overall quality evaluation device for tailings cemented filling bodies proposed in this embodiment obtains quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same; a discrete analysis is performed based on a first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor of the filling slurry to be evaluated; a weighted sum is performed based on a second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated. In this way, the quality evaluation parameters are comprehensively analyzed through preset weight coefficients to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor and cement content quality factor, which can help mines understand the actual mechanical properties of the filling body in the mining area, conduct mine filling body quality assessment, and provide guidance for safe mining.

[0095] Example 3

[0096] In addition, an embodiment of the present disclosure provides a computer device including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for evaluating the overall quality of the tailings cemented filling body described in Example 1 is implemented.

[0097] The equipment provided in the embodiment of the present disclosure can execute the steps of the method for evaluating the overall quality of the tailings cemented filling body provided in Example 1, which will not be described again to avoid repetition.

[0098] Example 4

[0099] The embodiment of the present disclosure provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method for evaluating the overall quality of a tailings cemented filling body described in the first embodiment is implemented.

[0100] In this embodiment, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0101] The computer-readable storage medium provided in this embodiment can implement the overall quality evaluation method of the tailings cemented filling body provided in Example 1. To avoid repetition, it will not be described here.

[0102] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

[0103] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0104] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A method for evaluating the overall quality of tailings cemented filling, characterized in that: include: Obtaining quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include expansion, compressive strength, tensile strength, segregation, and cement content of the filling slurry to be evaluated; the curing conditions of each sample are the same; Performing discrete analysis based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor, compressive strength quality factor, tensile strength quality factor, segregation quality factor, and cement content quality factor of the filling slurry to be evaluated; A weighted summation is performed based on the second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

2. The method for evaluating the overall quality of tailings cemented filling according to claim 1, characterized in that: The discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain the expansion quality factor of the filling slurry to be evaluated, including: The spread quality factor is calculated according to formula (1); Formula (1): Where S s is the spread quality factor, is the expansion of the i-th group of samples, is the average expansion of all samples, and α and β are the first preset weight coefficients.

3. The method for evaluating the overall quality of tailings cemented filling according to claim 2, characterized in that: A discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain a compressive strength quality factor of the filling slurry to be evaluated, including: The compressive strength quality factor is calculated according to formula (2); Formula (2): Where S c is the compressive strength quality factor, is the compressive strength of the i-th group of samples, is the average compressive strength of all samples.

4. The method for evaluating the overall quality of tailings cemented filling according to claim 2, characterized in that: A discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain a tensile strength quality factor of the filling slurry to be evaluated, including: Calculate the tensile strength quality factor according to formula (3); Formula (3): Where S p is the tensile strength quality factor, is the tensile strength of the filling body of the i-th group of samples, is the average tensile strength of all samples.

5. The method for evaluating the overall quality of tailings cemented filling according to claim 2, characterized in that: A discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain a segregation quality factor of the filling slurry to be evaluated, including: Calculate the segregation quality factor according to formula (4); Formula (4): Where S p is the segregation quality factor, is the segregation degree of the i-th group of samples, is the average segregation degree of all samples.

6. The method for evaluating the overall quality of tailings cemented filling according to claim 2, characterized in that: A discrete analysis is performed based on the first preset weight coefficient and each of the quality evaluation parameters to obtain a cement content quality factor of the filling slurry to be evaluated, including: Calculate the cement content quality factor according to formula (5); Formula (5): Where S p is the cement content quality factor, is the cement content of the i-th group of samples, is the average cement content of all samples.

7. The method for evaluating the overall quality of tailings cemented filling according to claim 1, characterized in that: The method further comprises: The quality grade of the filling slurry to be evaluated is determined based on a preset grading threshold and the overall quality of the cemented filling body.

8. A device for evaluating the overall quality of tailings cemented filling, characterized in that: include: an acquisition module, configured to acquire quality evaluation parameters of n samples corresponding to the filling slurry to be evaluated at a preset curing age, wherein the quality evaluation parameters include the expansion, compressive strength, tensile strength, segregation, and cement content of the filling slurry to be evaluated; and the curing conditions of the samples are the same; a discrete module, configured to perform discrete analysis based on a first preset weight coefficient and each of the quality evaluation parameters to obtain an expansion quality factor, a compressive strength quality factor, a tensile strength quality factor, a segregation quality factor, and a cement content quality factor of the filling slurry to be evaluated; A weighting module is used to perform weighted summation based on a second preset weight coefficient and the expansion quality factor, the compressive strength quality factor, the tensile strength quality factor, the segregation quality factor and the cement content quality factor to obtain a quantitative representation of the overall quality evaluation of the filling slurry to be evaluated.

9. A computer device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for evaluating the overall quality of a tailings cemented filling body according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that It stores a computer program, which, when executed by a processor, implements the method for evaluating the overall quality of a tailings cemented filling body as described in any one of claims 1 to 7.

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