Method for determining parameters of a waste dump, method for evaluating stability, and related devices

Abstract

The application provides a method for determining parameters of a slag yard, a method for evaluating stability, and related equipment. The slag yard includes n kinds of slag, and n is a positive integer greater than or equal to 2. The method includes: obtaining a volume fraction a of each kind of slag i and a corresponding slag sample; performing a triaxial test on each kind of slag sample to obtain an internal friction angle of the corresponding slag; and calculating an effective internal friction angle of the slag yard according to the volume fraction a of each kind of slag i and the internal friction angle. The method for determining parameters of a slag yard, the method for evaluating stability, and related equipment provided by the application are simple and convenient, can more accurately determine parameters such as the internal friction angle of the slag yard, have strong reliability, and provide guiding opinions for design, construction, or operation of the slag yard.

Description

Technical Field

[0001] This application relates to the field of waste disposal site parameter calculation technology, and in particular to a method for determining waste disposal site parameters, a stability evaluation method, and related equipment. Background Technology

[0002] Spoil disposal sites refer to the areas where excavated soil, rock, and slag are stockpiled during engineering construction. Their stability plays a crucial role in safety. For stability calculations and evaluations, the internal friction angle parameter of the spoil disposal site is of paramount importance. The internal friction angle is one of the shear strength indicators of soil or rock, reflecting the magnitude of the internal friction force between particles within the soil or rock. A larger internal friction angle indicates higher stability of the spoil disposal site; conversely, a smaller angle can lead to instability, potentially resulting in landslides or even collapses. Existing methods for determining the internal friction angle of spoil disposal sites suffer from low accuracy and poor reliability, leading to unreliable subsequent stability calculations and evaluations, and potentially causing serious safety accidents. Summary of the Invention

[0003] In view of this, the purpose of this application is to propose a method for determining parameters of a spoil disposal site, a method for evaluating stability, and related equipment to solve the above-mentioned technical problems.

[0004] A first aspect of this application provides a method for determining the friction angle within a waste disposal site, wherein the waste disposal site comprises n types of waste materials, where n is a positive integer greater than or equal to 2, the method comprising: obtaining the volume fraction a of each type of waste material. i and corresponding slag samples; triaxial tests were performed on each slag sample to obtain the internal friction angle of the corresponding slag. According to the volume fraction a of each of the aforementioned slag materials i and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle

[0005] Furthermore, the triaxial test is a consolidated drained shear test, and the internal friction angle... Wherein, α is the angle of inclination of the line connecting the failure points on the stress path diagram of the slag sample during the consolidated drained shear test.

[0006] Furthermore, the method for determining the internal friction angle of the waste disposal site also includes: determining the effective internal friction angle. Settlement correction yields the corrected internal friction angle. The corrected internal friction angle Where, k c Let be the settling coefficient of the waste disposal site.

[0007] Furthermore, the settlement coefficient k c=1.05+h / 1000, where h is the height of the waste disposal site.

[0008] A second aspect of this application provides a method for determining the anti-sliding stability safety factor of a spoil heap, wherein the modified internal friction angle is calculated using the method for determining the internal friction angle of a spoil heap as described in the first aspect above. The anti-sliding stability safety factor K is obtained by performing stability calculations on the waste disposal site.

[0009] Further, the step of calculating the anti-sliding stability safety factor K for the spoil heap includes: calculating the anti-sliding stability safety factor K of the spoil heap using the circular arc sliding strip method, wherein the anti-sliding stability safety factor... Wherein, W is the weight of the soil strip in the spoil heap; V is the vertical seismic inertial force of the spoil heap; α' is the angle between the gravity line of the soil strip and the radius passing through the midpoint of the bottom surface of the soil strip; u is the unit pore water pressure acting on the bottom surface of the soil strip; b is the width of the soil strip; and Q is the horizontal seismic inertial force of the spoil heap. The corrected internal friction angle is c'; the effective cohesion of the bottom surface of the soil strip is c'; M c R is the moment of the horizontal inertial force of the earthquake about the center of the circle; R is the radius of the arc of the spoil disposal site.

[0010] A third aspect of this application provides a method for evaluating the stability of a spoil heap. The method for determining the anti-sliding stability safety factor K of the spoil heap as described in the second aspect above calculates the anti-sliding stability safety factor K. In response to the anti-sliding stability safety factor K being less than a first preset coefficient, a stability risk warning message for the spoil heap is output.

[0011] A fourth aspect of this application provides an apparatus for determining the friction angle within a spoil heap, the spoil heap comprising n types of spoil materials, where n is a positive integer greater than or equal to 2, the apparatus comprising: an acquisition module configured to acquire the volume fraction a of each type of spoil material. i and corresponding slag samples; a test module configured to perform triaxial tests on each of the slag samples to obtain the internal friction angle of the corresponding slag. The calculation module is configured to calculate based on the volume fraction a of each type of slag material. i and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle

[0012] A fifth aspect of this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the computer program, it implements the method for determining the internal friction angle of a spoil heap as described in the first aspect above, the method for determining the anti-sliding stability safety factor of a spoil heap as described in the second aspect above, or the method for evaluating the stability of a spoil heap as described in the third aspect above.

[0013] A sixth aspect of this application provides a non-transitory computer-readable storage medium storing computer instructions, characterized in that the computer instructions are used to cause the computer to execute the method for determining the internal friction angle of the spoil heap as described in the first aspect above, the method for determining the anti-sliding stability safety factor of the spoil heap as described in the second aspect above, or the method for evaluating the stability of the spoil heap as described in the third aspect above.

[0014] As can be seen from the above, this application provides a method for determining parameters of a spoil disposal site, a stability evaluation method, and related equipment, by obtaining the volume fraction 'a' of each type of spoil material. i Determine the proportion of each type of slag in the spoil heap; obtain slag samples of each type of slag to facilitate subsequent testing; these samples can be obtained before the spoil heap is stockpiled, facilitating the design and construction of the spoil heap; and obtain the accurate internal friction angle of the corresponding slag by conducting triaxial tests on the slag samples. By conducting separate tests on each type of slag sample, the corresponding internal friction angles for n types of slag can be obtained. According to the volume fraction a of each type of slag material i and internal friction angle Calculate the effective internal friction angle of the spoil disposal site Effective internal friction angle The effective internal friction angle of the entire spoil heap is obtained by summing the product of the volume fraction of different slag materials and the internal friction angle. This method is highly accurate and avoids the randomness in the calculation of the internal friction angle caused by the difference in sampling after the spoil heap is piled up. It is convenient for subsequent stability calculation and evaluation and has high reliability. The method for determining spoil heap parameters, the stability evaluation method and related equipment are simple and convenient. They can more accurately determine parameters such as the internal friction angle of the spoil heap and have high reliability. This provides guidance for the design, construction or operation of spoil heaps. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating a method for determining the friction angle within a spoil disposal site, according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the structure of a device for determining the friction angle in a waste disposal site according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0021] A spoil heap refers to a site for storing excavated soil, rock, and slag generated during engineering construction. Its stability plays an important role in safety. In the calculation and evaluation of stability, the internal friction angle parameter of the spoil heap is crucial. The internal friction angle is one of the shear strength indicators of soil or rock, reflecting the magnitude of the internal friction force between particles inside the soil or rock. The larger the internal friction angle, the higher the stability of the spoil heap. Conversely, if the spoil heap is unstable, landslides or even collapses may occur.

[0022] Existing methods for determining the internal friction angle of spoil heaps fall into two categories. One involves sampling tests after the spoil heap has been filled. However, due to the complex source and composition of spoil materials and the randomness of spoil filling during actual accumulation, the spoil heap exhibits spatial non-uniformity. The significant differences in samples taken after the spoil heap has been filled result in low accuracy of the obtained internal friction angle. Furthermore, this method cannot determine the internal friction angle before the spoil heap is filled, causing inconvenience to the design and construction of the spoil heap and affecting the selection of engineering treatment measures. The other method uses engineering analogy, substituting the internal friction angle of a similar spoil heap for the internal friction angle of the current spoil heap. This method also suffers from low accuracy, leading to poor reliability in subsequent stability calculations and evaluations, and may even cause serious safety accidents.

[0023] The following describes specific embodiments in conjunction with... Figure 1-3 The technical solution of this application will be described in detail below.

[0024] Some embodiments of this application provide a method for determining the friction angle within a waste disposal site, wherein the waste disposal site includes n types of waste materials, where n is a positive integer greater than or equal to 2, such as... Figure 1 As shown, the method includes the following steps:

[0025] S1. Obtain the volume fraction a of each type of slag material. i And corresponding slag samples.

[0026] The sources and composition of spoil at spoil disposal sites are extremely complex, including stone, overburden, and fully weathered and strongly weathered materials. Furthermore, the long construction period may also result in the presence of a certain amount of domestic and industrial waste. Before the spoil is stockpiled, the source and volume fraction (a) of each type of spoil can be obtained through earthwork balance calculations and other methods. i By obtaining the volume fraction a of each type of slag material. i Determine the proportion of each type of slag in the spoil heap, where i is the serial number of the slag sample; after determining the source of each type of slag, corresponding slag samples can be obtained, which facilitates subsequent testing of each type of slag sample. Each type of slag sample can be obtained before the spoil heap is stockpiled, which facilitates the design and construction of the spoil heap.

[0027] S2. Triaxial tests were performed on each of the aforementioned slag samples to obtain the corresponding internal friction angle of the slag.

[0028] Triaxial testing refers to confined compression and shear testing, using a triaxial shear apparatus. The core component of the triaxial shear apparatus is the triaxial pressure chamber, which is equipped with an axial pressure system, a lateral pressure system, and a pore water pressure measurement system. The sample used in triaxial testing is cylindrical, with a height-to-diameter ratio of 2-2.5. The sample is wrapped with a thin rubber membrane to completely isolate the pore water from the external liquid. Under a given pressure around the triaxial pressure chamber, the axial additional pressure is continuously increased until the sample breaks. The normal stress and ultimate shear stress on the shear failure surface are calculated according to Mohr's strength theory. The results of triaxial testing can determine the shear strength indices of the sample, including the angle of internal friction and the bond strength. Compared with direct shear testing, the stress distribution in triaxial testing is more uniform, making it suitable for studying the shear strength characteristics of samples under complex stress conditions.

[0029] The accurate internal friction angle of the slag was obtained by conducting triaxial tests on the slag samples. By conducting separate tests on each type of slag sample, the corresponding internal friction angles for n types of slag can be obtained. The internal friction angle of slag reflects the frictional characteristics of slag, including the sliding friction caused by the roughness of the particle surface when slag particles slide against each other, and the interlocking friction caused by the movement of particles due to their embedding, interlocking and disengaging states.

[0030] S3, based on the volume fraction a of each of the aforementioned slag materials. i and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle

[0031] According to the volume fraction a of each type of slag material i and internal friction angle Calculate the effective internal friction angle of the spoil disposal site Effective internal friction angle By summing the volume fractions a of different slag materials i With internal friction angle The product of these factors yields the overall effective internal friction angle of the spoil disposal site. It has high accuracy, avoids the randomness in the calculation of internal friction angle caused by sampling differences after the accumulation of spoil heaps, facilitates subsequent stability calculation and evaluation, has high reliability, and also avoids the differences between different spoil heaps in engineering comparisons, with high accuracy.

[0032] This embodiment allows for the determination of the effective internal friction angle of a spoil disposal site before its accumulation. This approach facilitates the design and construction of spoil heaps and allows for the selection of appropriate engineering treatment measures. Furthermore, even if samples of each type of slag are obtained and mixed before being piled up at the spoil heap, and then triaxial tests are performed on the mixed samples, the measured internal friction angle may still be inaccurate due to factors such as the uniformity of the mixture, resulting in poor reliability. This embodiment, however, differentiates the internal friction angle of each slag sample by volume percentage within the effective internal friction angle at the spoil heap. The contribution in the process avoids the randomness of mixing.

[0033] The method for determining the internal friction angle of the spoil disposal site is simple and convenient, and can more accurately determine parameters such as the internal friction angle of the spoil disposal site. It is highly reliable and provides guidance for the design, construction or operation of spoil disposal sites.

[0034] In some embodiments, the triaxial test is a consolidated drained shear test, and the internal friction angle Wherein, α is the angle of inclination of the line connecting the failure points on the stress path diagram of the slag sample during the consolidated drained shear test.

[0035] Triaxial tests are divided into unconsolidated undrained shear tests, consolidated undrained shear tests, and consolidated drained shear tests. In the consolidated drained shear test, the sample is allowed to undergo drainage consolidation under ambient pressure. After consolidation stabilizes, vertical pressure is applied under drained conditions until the sample fails in shear. This method better reflects the actual environment of a spoil heap, and the measured internal friction angle... High reliability; internal friction angle α is the inclination angle of the line connecting the failure points on the stress path diagram of the slag sample during the consolidated drained shear test.

[0036] Table 1 shows the consolidated drained shear test results for a construction spoil heap. The spoil heap contains four types of slag. Before the test, samples of each of the four types of slag were obtained and consolidated drained shear tests were conducted to measure the corresponding internal friction angles. Multiple samples of each type of slag material can be obtained, and the corresponding internal friction angles... Multiple slag samples can be taken for testing, and the average value is not limited. The formula can be used to calculate the average value. Calculate the effective internal friction angle of the spoil disposal site. It is 36.66°.

[0037] Table 1 Consolidated Drained Shear Test Table

[0038]

[0039] In some embodiments, such as Figure 1 As shown, the method for determining the friction angle within the waste disposal site further includes:

[0040] S4, regarding the effective internal friction angle Settlement correction yields the corrected internal friction angle. The corrected internal friction angle Where, k c Let be the settling coefficient of the waste disposal site.

[0041] The basic geological conditions and mechanical properties of the underlying soil and rock layers of a spoil heap also affect the overall anti-sliding stability and safety of the spoil heap. This can be addressed by introducing the spoil heap's settlement coefficient k. c Corrected effective internal friction angle The settling effect of the spoil heap can be taken into account by incorporating the internal friction angle, which is more in line with the actual spoil heap environment and makes the subsequent stability calculation and evaluation of the spoil heap more accurate and reliable.

[0042] In some embodiments, the settlement coefficient k c =1.05+h / 1000, where h is the height of the waste disposal site.

[0043] In real-world environments, the effective internal friction angle differs between deep and shallow locations in a spoil heap. By setting the settlement coefficient of the spoil heap as a function of its height, and using this settlement coefficient to correct the effective internal friction angle, the deep and shallow sliding of the spoil heap can be calculated and evaluated more accurately. For example, the settlement coefficient k is used for shallow sliding. c The value is 1.05, representing the settlement coefficient k during deep sliding. c The value is 1.28, but the specific value is not limited; in the formula k c In the formula =1.05+h / 1000, when h≤200m, the settlement coefficient k c It is more accurate.

[0044] Some embodiments of this application provide a method for determining the anti-sliding stability safety factor of a spoil heap, using the modified internal friction angle calculated using the method for determining the internal friction angle of a spoil heap as described in any of the above embodiments. The anti-sliding stability safety factor K is obtained by performing stability calculations on the waste disposal site.

[0045] The anti-sliding stability safety factor K has high reliability, which makes it easier for personnel to conduct more accurate stability evaluation of the spoil disposal site, reduces calculation deviations that may lead to errors in stability judgment, and thus avoids safety accidents.

[0046] In some embodiments, calculating the anti-sliding stability safety factor K for the spoil heap includes: calculating the anti-sliding stability safety factor K of the spoil heap using the circular arc sliding strip method, wherein the anti-sliding stability safety factor...

[0047] Wherein, W is the weight of the soil strip in the spoil heap; V is the vertical seismic inertial force of the spoil heap; α' is the angle between the gravity line of the soil strip and the radius passing through the midpoint of the bottom surface of the soil strip; u is the unit pore water pressure acting on the bottom surface of the soil strip; b is the width of the soil strip; and Q is the horizontal seismic inertial force of the spoil heap. The corrected internal friction angle is c'; the effective cohesion of the bottom surface of the soil strip is c'; M c R is the moment of the horizontal inertial force of the earthquake about the center of the circle; R is the radius of the arc of the spoil disposal site.

[0048] The circular arc sliding strip method assumes that the spoil heap slides along a circular arc surface and that the forces between the soil strips have little impact on the overall stability of the spoil heap and can be ignored. Specifically, it assumes that the forces on both sides of the soil strip are equal in magnitude, opposite in direction, and act along the same straight line. This method is simple and convenient; the safety factor can be directly obtained through limit equilibrium, providing a basis for determining the strength index of the spoil heap and selecting an appropriate safety factor.

[0049] Some embodiments of this application provide a method for evaluating the stability of a spoil disposal site. The anti-sliding stability safety factor K is calculated according to the method for determining the anti-sliding stability safety factor of a spoil disposal site as described in any of the above embodiments. In response to the anti-sliding stability safety factor K being less than a first preset coefficient, stability risk warning information of the spoil disposal site is output.

[0050] The first preset coefficient can be selected based on the operating conditions or level of the spoil disposal site, and there is no specific limitation. For example, when the spoil disposal site is in a persistent condition and the level is 1, the first preset coefficient is 1.25. When the safety factor K is less than 1.25, the stability risk warning information of the spoil disposal site is output. The stability risk warning information includes, for example, spoil disposal site instability warning information, landslide warning information, etc., and there is no specific limitation.

[0051] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0052] Based on the same inventive concept, corresponding to the method for determining the friction angle within a waste disposal site in any of the above embodiments, this application also provides a device for determining the friction angle within a waste disposal site, wherein the waste disposal site includes n types of waste materials, where n is a positive integer greater than or equal to 2. (Refer to...) Figure 2 The device includes:

[0053] The acquisition module 21 is configured to acquire the volume fraction a of each type of slag material. i and corresponding slag samples;

[0054] Test module 22 is configured to perform triaxial tests on each of the slag samples to obtain the corresponding internal friction angle of the slag.

[0055] Calculation module 23 is configured to calculate based on the volume fraction a of each type of slag material. i and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle

[0056] In some embodiments, such as Figure 2 As shown, the device for determining the friction angle within the waste disposal site further includes:

[0057] Correction module 24 is configured to adjust the effective internal friction angle. Settlement correction yields the corrected internal friction angle. The corrected internal friction angle Where, k c Let be the settling coefficient of the waste disposal site.

[0058] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0059] The apparatus described above is used to implement the method for determining the friction angle in the corresponding waste disposal site in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0060] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for determining the internal friction angle of the spoil heap, the method for determining the anti-sliding stability safety factor of the spoil heap, or the method for evaluating the stability of the spoil heap as described in any of the above embodiments.

[0061] Figure 3 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0062] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0063] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0064] The input / output interface 1030 is used to connect input / output modules to realize information input and output. The input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. The input devices can include keyboards, mice, touchscreens, microphones, various sensors, etc., and the output devices can include displays, speakers, vibrators, indicator lights, etc.

[0065] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication and interaction between this device and other devices. The communication module can communicate via wired means (e.g., USB, Ethernet cable, etc.) or wireless means (e.g., mobile network, WIFI, Bluetooth, etc.).

[0066] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0067] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0068] The electronic equipment in the above embodiments is used to implement the corresponding method for determining the internal friction angle of the spoil disposal site, the method for determining the anti-sliding stability safety factor of the spoil disposal site, or the method for evaluating the stability of the spoil disposal site in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0069] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions, which are used to cause the computer to execute the method for determining the internal friction angle of the spoil heap, the method for determining the anti-sliding stability safety factor of the spoil heap, or the method for evaluating the stability of the spoil heap as described in any of the above embodiments.

[0070] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0071] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the method for determining the internal friction angle of the spoil disposal site, the method for determining the anti-sliding stability safety factor of the spoil disposal site, or the method for evaluating the stability of the spoil disposal site as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0073] Furthermore, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the apparatus may be shown in block diagram form. This is to prevent the embodiments of this application from being difficult to understand, and it also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully within the understanding of those skilled in the art). In setting forth specific details to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0074] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0075] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A method for determining the friction angle within a spoil heap, wherein the spoil heap includes... Seed slag material, It is a positive integer greater than or equal to 2, characterized in that, The method includes: Obtain the volume fraction of each type of slag. and corresponding slag samples; Triaxial tests were performed on each of the aforementioned slag samples to obtain the corresponding internal friction angle of the slag. The triaxial test is a consolidated drained shear test, and the internal friction angle is... ,in, The angle of inclination of the line connecting the failure points on the stress path diagram of the slag sample during the consolidated drained shear test. According to the volume fraction of each of the aforementioned slag materials and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle ; Regarding the effective internal friction angle Settlement correction yields the corrected internal friction angle. The corrected internal friction angle ,in, The settling coefficient of the spoil heap, the settling coefficient ,in, The height of the waste disposal site.

2. A method for determining the anti-sliding stability safety factor of a spoil heap, characterized in that, The corrected internal friction angle is calculated using the method for determining the internal friction angle of a spoil heap as described in claim 1. The anti-sliding stability safety factor is obtained by performing stability calculations on the waste disposal site. .

3. The method for determining the anti-sliding stability safety factor of a spoil heap according to claim 2, characterized in that, The anti-sliding stability safety factor is obtained by performing stability calculations on the spoil heap. include: The anti-sliding stability safety factor of the spoil heap was calculated using the circular arc sliding strip method. The anti-slip stability safety factor , in, The weight of the soil strips at the spoil heap; The seismic vertical inertial force of the aforementioned spoil heap; The angle between the gravity line of the strip in the waste disposal site and the radius passing through the midpoint of the bottom surface of the strip; This refers to the unit pore water pressure acting on the bottom surface of the soil strip; The width of the soil strip; The horizontal inertial force of the earthquake at the spoil heap; For the corrected internal friction angle; The effective cohesion of the bottom surface of the soil strip; The moment of the horizontal inertial force of the earthquake about the center of the circle; Let be the radius of the arc of the waste disposal site.

4. A method for evaluating the stability of a spoil disposal site, characterized in that, The anti-sliding stability safety factor is calculated using the method for determining the anti-sliding stability safety factor of the spoil heap according to claim 2 or 3. In response to the anti-slip stability safety factor If the value is less than the first preset coefficient, output stability risk warning information for the waste disposal site.

5. A device for determining the friction angle within a spoil heap, the spoil heap comprising... Seed slag material, It is a positive integer greater than or equal to 2, characterized in that, The device includes: The acquisition module is configured to acquire the volume fraction of each type of slag material. and corresponding slag samples; The test module is configured to perform triaxial tests on each of the slag samples to obtain the corresponding internal friction angle of the slag. The triaxial test is a consolidated drained shear test, and the internal friction angle is... ,in, The angle of inclination of the line connecting the failure points on the stress path diagram of the slag sample during the consolidated drained shear test. The calculation module is configured to calculate based on the volume fraction of each type of slag. and the internal friction angle Calculate the effective internal friction angle of the waste disposal site. The effective internal friction angle ; Regarding the effective internal friction angle Settlement correction yields the corrected internal friction angle. The corrected internal friction angle ,in, The settling coefficient of the spoil heap, the settling coefficient ,in, The height of the waste disposal site.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for determining the internal friction angle of the spoil heap as described in claim 1, the method for determining the anti-sliding stability safety factor of the spoil heap as described in claim 2 or 3, or the method for evaluating the stability of the spoil heap as described in claim 4.

7. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to execute the method for determining the internal friction angle of the spoil heap as described in any one of claims 1, the method for determining the anti-sliding stability safety factor of the spoil heap as described in claims 2 or 3, or the method for evaluating the stability of the spoil heap as described in claim 4.

Images