A method, system and device for determining a fill retaining wall design

Abstract

The application discloses a kind of filling retaining wall design scheme determination method, system and equipment, it is related to mine filling technical field.The method comprises the following steps: obtaining the basic parameters of mine to be filled empty area;According to basic parameters and field demand determine filling height;According to different filling retaining wall shape and filling height, the total pressure and the maximum vertical bending moment suffered by filling retaining wall are calculated;Obtain the basic performance parameters of filling retaining wall material;According to the total pressure and the basic performance parameters of filling retaining wall material suffered by filling retaining wall, the maximum retaining wall thickness is determined and the theoretical maximum vertical bending moment that filling retaining wall can bear is calculated;According to the maximum vertical bending moment and the theoretical maximum vertical bending moment, determine the number of reinforcement, obtain multiple filling retaining wall design schemes, and determine the optimal filling retaining wall design scheme from it.The application can effectively reduce the construction time, operation cost and operation error of mine filling retaining wall under the premise of guaranteeing the quality of filling retaining wall.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine filling, in particular to a filling retaining wall design scheme determination method, system and equipment. BACKGROUND

[0002] With the in-depth development of mining, filling mining method is gradually favored by various mines. As an important part of filling mining method, filling retaining wall is an important guarantee for sealing filling slurry in the mined-out area and achieving the predetermined function. At present, the commonly used filling retaining wall structure in mines mainly includes concrete retaining wall, brick retaining wall, wooden retaining wall, sand bag retaining wall, waste rock retaining wall and the like. There is no complete specification for reference for filling retaining wall design. Most of the existing mines use engineering analogy method and experience calculation method to design filling retaining wall, but this method has low intelligent level, large personnel operation error in construction process, high material cost of retaining wall and long operation time and many other problems. SUMMARY

[0003] The purpose of the present application is to provide a filling retaining wall design scheme determination method, system and equipment, which can effectively reduce the construction time, operation cost and operation error of the filling retaining wall of the mine under the premise of ensuring the quality of the filling retaining wall.

[0004] To achieve the above purpose, the present application provides the following scheme:

[0005] A filling retaining wall design scheme determination method comprises:

[0006] obtaining basic parameters of a mine to be filled with a void, the basic parameters including length, width and height of the void to be filled and density, setting time and bleeding rate of the material of the void to be filled;

[0007] determining the filling height according to the basic parameters and field requirements;

[0008] determining different shapes of the filling retaining wall, and calculating the total pressure and the maximum vertical bending moment of the filling retaining wall according to the shape of the filling retaining wall and the filling height;

[0009] obtaining basic performance parameters of the filling retaining wall material, the basic performance parameters including compressive strength, tensile strength, shear strength, structural safety factor, load subcoefficient and impermeability coefficient of the filling retaining wall material;

[0010] determining the maximum retaining wall thickness according to the total pressure of the filling retaining wall and the basic performance parameters of the filling retaining wall material;

[0011] calculating the theoretical maximum vertical bending moment that can be borne by the filling retaining wall according to the maximum retaining wall thickness;

[0012] The number of reinforcements is determined based on the maximum vertical bending moment and the theoretical maximum vertical bending moment of the infill retaining wall with different shapes, resulting in multiple design schemes for the infill retaining wall.

[0013] The optimal filling retaining wall design scheme is the one with the lowest total material cost and construction time among multiple filling retaining wall design schemes.

[0014] Optionally, determining different shapes of the filling retaining wall and calculating the total pressure and maximum vertical bending moment on the filling retaining wall based on the shape and filling height specifically includes:

[0015] When the shape of the infill retaining wall is a vertical infill retaining wall, if the filling height is lower than the height of the infill retaining wall, the formula is used. Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M on the infill retaining wall; if the filling height is higher than the infill retaining wall height, use the formula... Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M on the filled retaining wall; where H is the height of the filled retaining wall; γ is the unit weight of the slurry in the filling void; h is the filling height; and W is the width of the filled retaining wall.

[0016] When the shape of the infill retaining wall is trapezoidal, if the filling height is lower than the height of the infill retaining wall, the formula is used. Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M on the infill retaining wall; if the filling height is higher than the infill retaining wall height, use the formula... Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M on the infill retaining wall; where α is the complementary angle of the base angle of the trapezoidal infill retaining wall;

[0017] When the filling retaining wall is an arc-shaped filling retaining wall, if the filling height is lower than the height of the filling retaining wall, the formula is used. Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M on the infill retaining wall; if the filling height is higher than the infill retaining wall height, use the formula... Calculate the total pressure P on the infill retaining wall; use the formula Calculate the maximum vertical bending moment M experienced by the infill retaining wall.

[0018] Optionally, determining the maximum retaining wall thickness based on the total pressure exerted on the retaining wall and the basic performance parameters of the retaining wall material specifically includes:

[0019] Based on the total pressure P exerted on the infilled retaining wall and the compressive strength of the infilled retaining wall material, the formula is used. Calculate the first filling retaining wall thickness B1; wherein, f c is the compressive strength of the filling retaining wall material; θ is the angle between the filling retaining wall and the center line of the roadway;

[0020] Based on the cylindrical calculation method, the formula is used to calculate the second filling retaining wall thickness B2; wherein, r is the radius of the roadway;

[0021] Based on the shear performance of the filling retaining wall material, the formula is used to calculate the third filling retaining wall thickness B3; wherein, f s is the shear strength of the filling retaining wall material;

[0022] Based on the permeability of the filling retaining wall material, the formula B4≥48Kh ab is used to calculate the fourth filling retaining wall thickness B4; wherein, K is the permeability coefficient of the filling retaining wall material; h ab is the static water head height;

[0023] The maximum value among the first filling retaining wall thickness B1, the second filling retaining wall thickness B2, the third filling retaining wall thickness B3, and the fourth filling retaining wall thickness B4 is taken as the maximum retaining wall thickness B.

[0024] Optionally, the method of calculating the theoretical maximum vertical bending moment that the filling retaining wall can withstand according to the maximum retaining wall thickness, specifically comprises:

[0025] The formula M d = α0f c WB is used to calculate the theoretical maximum vertical bending moment M d that the filling retaining wall can withstand; wherein α0 is a partial coefficient.

[0026] Optionally, the method of determining the number of reinforcements according to the maximum vertical bending moment and the theoretical maximum vertical bending moment of the filling retaining wall with different shapes to obtain a plurality of filling retaining wall design schemes, specifically comprises:

[0027] For any shape of filling retaining wall of the upright type, trapezoidal type, and circular arc type, if the maximum vertical bending moment M d is less than or equal to the theoretical maximum vertical bending moment M d , the number of reinforcements is zero;

[0028] If the maximum vertical bending moment M d is greater than the theoretical maximum vertical bending moment M d , the formula is used to calculate the longitudinal tensile reinforcement ratio n1; the formula is used to calculate the transverse tensile reinforcement ratio n2; wherein, γ0 is a steel structure importance coefficient; γ s is a steel internal force arm coefficient; m = W / H is the length-width span ratio of the filling retaining wall; β = 1 / m 2; q is the uniform load on the filling retaining wall; C0 is the thickness of the concrete protective layer; f y is the yield strength of the steel bar.

[0029] A filling retaining wall design scheme determination system comprises:

[0030] A basic parameter acquisition module is configured to acquire basic parameters of a mine to-be-filled empty area; the basic parameters include the length, width and height of the to-be-filled empty area, and the density, setting time and bleeding rate of the filling empty area material.

[0031] A filling height determination module is configured to determine the filling height according to the basic parameters and field requirements.

[0032] A total pressure and maximum vertical bending moment calculation module is configured to determine different filling retaining wall shapes, and calculate the total pressure and maximum vertical bending moment on the filling retaining wall according to the filling retaining wall shape and filling height.

[0033] A basic performance parameter acquisition module is configured to acquire basic performance parameters of the filling retaining wall material; the basic performance parameters include the compressive strength, tensile strength, shear strength, structural safety factor, load partial coefficient and impermeability coefficient of the filling retaining wall material.

[0034] A maximum retaining wall thickness calculation module is configured to determine the maximum retaining wall thickness according to the total pressure on the filling retaining wall and the basic performance parameters of the filling retaining wall material.

[0035] A theoretical maximum vertical bending moment calculation module is configured to calculate the theoretical maximum vertical bending moment that can be borne by the filling retaining wall according to the maximum retaining wall thickness.

[0036] A reinforcement number calculation module is configured to determine the reinforcement number according to the maximum vertical bending moment and the theoretical maximum vertical bending moment of the filling retaining wall of different shapes, to obtain multiple filling retaining wall design schemes.

[0037] An optimal design scheme determination module is configured to determine the filling retaining wall design scheme with the least total filling retaining wall material price and construction work time from the multiple filling retaining wall design schemes as the optimal filling retaining wall design scheme.

[0038] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the filling retaining wall design scheme determination method when executing the computer program.

[0039] Optionally, the memory is a non-transitory computer readable storage medium.

[0040] According to the specific embodiments of the present application, the following technical effects are provided:

[0041] The application provides a filling retaining wall design scheme determination method, system and equipment, which comprises the following steps: firstly, obtaining basic parameters of a mine to-be-filled empty area and basic performance parameters of filling retaining wall materials; selecting different filling retaining wall shapes, and determining total pressure and maximum vertical bending moment of the filling retaining wall according to the filling retaining wall shape and filling height; determining the maximum retaining wall thickness and the number of reinforcements according to the total pressure of the filling retaining wall and the basic performance parameters of the filling retaining wall materials, so as to obtain a design scheme corresponding to different filling retaining wall shapes; evaluating each design scheme according to the filling retaining wall material price and construction time; and determining the design scheme with the lowest total filling retaining wall material price and construction time as the optimal filling retaining wall design scheme in the feasible schemes. The application can improve the intelligent level of filling retaining wall design, reduce the operation error of filling retaining wall construction personnel, and effectively reduce the construction time and operation cost of the mine filling retaining wall under the premise of ensuring the quality of the filling retaining wall. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0043] Figure 1 The filling retaining wall design scheme determination method provided by the present application is shown in the flowchart.

[0044] Figure 2 The schematic diagram when the filling height is lower than the height of the straight-type filling retaining wall is provided by the present application.

[0045] Figure 3 The schematic diagram when the filling height is higher than the height of the straight-type filling retaining wall is provided by the present application.

[0046] Figure 4 The schematic diagram when the filling height is lower than the height of the trapezoidal filling retaining wall is provided by the present application.

[0047] Figure 5 The schematic diagram when the filling height is higher than the height of the trapezoidal filling retaining wall is provided by the present application.

[0048] Figure 6 The schematic diagram when the filling height is lower than the height of the circular arc-type filling retaining wall is provided by the present application.

[0049] Figure 7 The schematic diagram when the filling height is higher than the height of the circular arc-type filling retaining wall is provided by the present application. DETAILED DESCRIPTION

[0050] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0051] The present application aims to provide a filling retaining wall design scheme determination method, system and equipment to effectively reduce the construction time, operation cost and operation error of the mine filling retaining wall under the premise of ensuring the quality of the filling retaining wall.

[0052] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0053] Figure 1 The present application provides a filling retaining wall design scheme determination method flow chart. As shown in Figure 1 The present application discloses a filling retaining wall design scheme determination method, which comprises:

[0054] Step 1: Obtain the basic parameters of the mine to be filled empty area.

[0055] Specifically, the length, width and height of the mine to be filled empty area are obtained, and the density, setting time and bleeding rate of the mine filling empty area material are determined.

[0056] Step 2: Determine the filling height according to the basic parameters and the field requirements.

[0057] Specifically, based on the obtained basic parameters of the mine to be filled empty area, the filling scheme is selected according to the field requirements, so as to determine the appropriate filling height. If the filling scheme is continuous filling, the filling height is the height of the empty area; if the filling scheme is layered filling, the filling height is calculated according to the layered height in turn.

[0058] Step 3: Determine different filling retaining wall shapes, and calculate the total pressure and the maximum vertical bending moment of the filling retaining wall according to the filling retaining wall shape and the filling height.

[0059] In actual application process, the filling retaining wall design scheme needs to meet the following conditions:

[0060] (1) The rock mass in the empty area to be filled and the filling body are regarded as isotropic continuous medium.

[0061] (2) Only the mechanical influence of the filling body in the empty area to be filled on the filling retaining wall is considered, and the influence of factors such as seismic wave and blasting operation on the filling retaining wall is not considered.

[0062] The total pressure of the filling retaining wall refers to the mechanical effect of the filling body in the to-be-filled empty area on the filling retaining wall, and is the resultant force of the lateral force and the vertical force. The maximum vertical bending moment of the filling retaining wall refers to the maximum value of the vertical cross-section internal moment perpendicular to the filling retaining wall.

[0063] The different filling retaining wall shapes include three types of upright type, trapezoidal type and circular arc type, which correspond to three different filling retaining wall design schemes.

[0064] For each of the three types of filling retaining wall shapes of the upright type, the trapezoidal type and the circular arc type, the total pressure and the maximum vertical bending moment borne by the filling retaining wall are calculated according to the stress analysis model of the filling retaining wall of different shapes. The specific calculation formulas are as follows.

[0065] 1. Upright filling retaining wall

[0066] When the filling retaining wall is an upright filling retaining wall, according to the selected filling scheme, it is clear that the filling height is lower than the height of the filling retaining wall or the filling height is higher than the height of the filling retaining wall. The total pressure and the maximum vertical bending moment borne by the filling retaining wall are calculated according to the corresponding calculation formula.

[0067] When the filling height is lower than the height of the filling retaining wall, as shown in Figure 2 , the total pressure P and the maximum vertical bending moment M borne by the filling retaining wall are calculated according to the following formulas, respectively:

[0068] The total pressure P is:

[0069]

[0070] The maximum vertical bending moment M is:

[0071]

[0072] When the filling height is higher than the height of the filling retaining wall, as shown in Figure 3 , the total pressure P and the maximum vertical bending moment M borne by the filling retaining wall are calculated according to the following formulas, respectively:

[0073] The total pressure P is:

[0074]

[0075] The maximum vertical bending moment M is:

[0076]

[0077] Wherein, H is the height of the filling retaining wall; γ is the unit weight of the filling slurry in the empty area; h is the filling height, i.e. the height of the filling slurry in the empty area; W is the width of the filling retaining wall.

[0078] 2. Trapezoidal filling retaining wall

[0079] When the filling height is lower than the filling retaining wall height, as shown in Figure 4 the total pressure P and the maximum vertical bending moment M of the filling retaining wall are calculated by the following formulas, respectively:

[0080] The total pressure P:

[0081]

[0082] The maximum vertical bending moment M:

[0083]

[0084] When the filling height is higher than the filling retaining wall height, as shown in Figure 5 the total pressure P and the maximum vertical bending moment M of the filling retaining wall are calculated by the following formulas, respectively:

[0085] The total pressure P:

[0086]

[0087] The maximum vertical bending moment M:

[0088]

[0089] Wherein, α is the complementary angle of the bottom angle of the trapezoidal filling retaining wall.

[0090] 3. Circular arc type filling retaining wall

[0091] When the filling height is lower than the filling retaining wall height, as shown in Figure 6 the total pressure P and the maximum vertical bending moment M of the filling retaining wall are calculated by the following formulas, respectively:

[0092] The total pressure P:

[0093]

[0094] The maximum vertical bending moment M:

[0095]

[0096] When the filling height is higher than the filling retaining wall height, as shown in Figure 7 the total pressure P and the maximum vertical bending moment M of the filling retaining wall are calculated by the following formulas, respectively:

[0097] The total pressure P:

[0098]

[0099] The maximum vertical bending moment M:

[0100]

[0101] Step 4: Obtain the basic performance parameters of the filling retaining wall material.

[0102] Specifically, the compressive strength, tensile strength and shear strength of the filling retaining wall material are obtained, and the structural safety factor, load partial coefficient and impermeability coefficient of the filling retaining wall material are determined.

[0103] Step 5: Determine the maximum retaining wall thickness according to the total pressure on the filling retaining wall and the basic performance parameters of the filling retaining wall material.

[0104] The retaining wall thickness is calculated according to the compressive performance, cylindrical calculation method, shear performance and impermeability performance of the filling retaining wall material, and the specific calculation formulas are as follows.

[0105] 1) According to the compressive performance of the filling retaining wall material, the first filling retaining wall thickness B1 calculation formula is:

[0106]

[0107] Wherein, f c is the compressive strength of the filling retaining wall material; θ is the angle between the filling retaining wall and the center line of the roadway; when the rock firmness coefficient f < 6, θ takes 20°, and when f > 6, θ takes 30°.

[0108] 2) According to the cylindrical calculation method, the second filling retaining wall thickness B2 calculation formula is:

[0109]

[0110]

[0111] Wherein, r is the radius of the roadway.

[0112] 3) Based on the shear performance of the filling retaining wall material, according to the cylindrical calculation method, the third filling retaining wall thickness B3 calculation formula is:

[0113]

[0114]

[0115] Wherein, f s is the shear strength of the filling retaining wall material; f t is the tensile strength of the filling retaining wall.

[0116] 4) Based on the impermeability performance of the filling retaining wall material, according to the cylindrical calculation method, the fourth filling retaining wall thickness B4 calculation formula is:

[0117] B4≥48Kh ab (18)

[0118] Wherein, K is the impermeability coefficient of the filling retaining wall material, taking 0.00003; h ab is the static water pressure head height.

[0119] The maximum value of the filling retaining wall thickness under the same condition is selected as the maximum retaining wall thickness, that is, the maximum value among the first filling retaining wall thickness B1, the second filling retaining wall thickness B2, the third filling retaining wall thickness B3 and the fourth filling retaining wall thickness B4 is taken as the maximum retaining wall thickness B.

[0120] Step 6: Calculate the theoretical maximum vertical bending moment that the filling retaining wall can withstand according to the maximum retaining wall thickness.

[0121] The formula for calculating the theoretical maximum vertical bending moment M d that the filling retaining wall with the maximum retaining wall thickness B can withstand is:

[0122] M d = α0f c WB (19)

[0123] Wherein, α0 is a partial coefficient.

[0124] When the concrete strength grade is not more than C50, α0 = 1, when the concrete strength grade is C80, taking 0.94, and the linear interpolation method is used to determine.

[0125] Step 7: Determine the reinforcement number according to the maximum vertical bending moment and the theoretical maximum vertical bending moment of the filling retaining wall with different shapes, and obtain multiple filling retaining wall design schemes.

[0126] Compare the maximum vertical bending moment M and the theoretical maximum vertical bending moment M d of any shape of the filling retaining wall of the upright type, trapezoidal type and circular arc type to determine whether reinforcement is needed.

[0127] If the maximum vertical bending moment M is greater than the theoretical maximum vertical bending moment M d , calculate the reinforcement number, and the calculation formula is as follows:

[0128]

[0129]

[0130] Wherein, n1 is the longitudinal tensile reinforcement ratio; n2 is the transverse tensile reinforcement ratio; γ0 is the steel structure importance coefficient, taking 1.1; γ s is the steel internal force arm coefficient, taking 0.95; m = W / H is the length-width span ratio of the filling retaining wall; β = 1 / m 2 ; q is the uniform load on the filling retaining wall; C0 is the concrete cover thickness; f y is the yield strength of the steel bar.

[0131] If the maximum vertical bending moment M received is less than or equal to the theoretical maximum vertical bending moment M d If the maximum vertical bending moment M received is less than or equal to the theoretical maximum vertical bending moment M

[0132] Step 8: determining the optimal filling retaining wall design scheme from the multiple filling retaining wall design schemes with the least total filling retaining wall material price and construction working hours.

[0133] According to the measurement method of the filling retaining wall construction equipment, the consumption of various materials is determined; according to the local market price, the total price of various materials is calculated; according to the use time of the filling retaining wall construction, the total working hours of the retaining wall construction are determined, the total filling retaining wall material price and the construction working hours are evaluated, the filling retaining wall design scheme with the least total filling retaining wall material price and construction working hours is determined as the optimal filling retaining wall design scheme, and the construction is carried out according to the optimal filling retaining wall design scheme.

[0134] The filling retaining wall design scheme determination method disclosed by the application effectively solves the problems of high personnel dependence, long retaining wall construction period and high retaining wall material cost in the existing filling retaining wall design and construction process, improves the intelligent level of the filling retaining wall design, reduces the operation error of the filling retaining wall construction personnel, and effectively reduces the construction time and operation cost of the mine filling retaining wall under the condition of ensuring the quality of the filling retaining wall.

[0135] Based on the method provided by the application, the application further discloses a filling retaining wall design scheme determination system, which comprises:

[0136] The basic parameter acquisition module is used to acquire the basic parameters of the mine to-be-filled empty area; the basic parameters include the length, width and height of the to-be-filled empty area, and the density, setting time and bleeding rate of the filling empty area material.

[0137] The filling height determination module is used to determine the filling height according to the basic parameters and the field requirements.

[0138] The total pressure and the maximum vertical bending moment calculation module is used to determine different filling retaining wall shapes, and calculate the total pressure and the maximum vertical bending moment of the filling retaining wall according to the filling retaining wall shape and the filling height.

[0139] The basic performance parameter acquisition module is used to acquire the basic performance parameters of the filling retaining wall material; the basic performance parameters include the compressive strength, tensile strength, shear strength, structural safety factor, load subcoefficient and impermeability coefficient of the filling retaining wall material.

[0140] The maximum retaining wall thickness calculation module is used to determine the maximum retaining wall thickness according to the total pressure of the filling retaining wall and the basic performance parameters of the filling retaining wall material.

[0141] The theoretical maximum vertical bending moment calculation module is configured to calculate the theoretical maximum vertical bending moment that the filling retaining wall can withstand according to the maximum retaining wall thickness.

[0142] The rib number calculation module is configured to determine the rib number according to the maximum vertical bending moment and the theoretical maximum vertical bending moment of the filling retaining wall with different shapes, and obtain multiple filling retaining wall design schemes.

[0143] The optimal design scheme determination module is configured to determine the filling retaining wall design scheme with the least total price and construction time of the filling retaining wall material in the multiple filling retaining wall design schemes as the optimal filling retaining wall design scheme.

[0144] Further, the present application also provides an electronic device, which can include a processor, a communication interface, a memory and a communication bus. Wherein, the processor, the communication interface and the memory complete the communication among each other through the communication bus. The processor can call the computer program in the memory to execute the filling retaining wall design scheme determination method.

[0145] In addition, the computer program in the memory described above is realized in the form of a software function unit and sold or used as an independent product. When stored in a non-transitory computer readable storage medium, the technical solution of the present application essentially or the part of the prior art that contributes to the present application or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk, and various media that can store program codes.

[0146] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method part.

[0147] The principles and implementation manners of the present application are described by using specific examples in this paper. The above embodiment description is only used to help understand the method of the present application and its core idea. For those skilled in the art, according to the idea of the present application, the specific implementation manner and application range can be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A method for determining a fill retaining wall design, characterized by, The method comprises the following steps: obtaining basic parameters of a mine to-be-filled empty area; the basic parameters include length, width and height of the to-be-filled empty area, and density, setting time and bleeding rate of the material of the empty area; determining a filling height according to the basic parameters and on-site requirements; determining different filling retaining wall shapes, and calculating total pressure and maximum vertical bending moment borne by the filling retaining wall according to the filling retaining wall shapes and the filling height; obtaining basic performance parameters of the filling retaining wall material; the basic performance parameters include compressive strength, tensile strength, shear strength, structural safety factor, load partial coefficient and impermeability coefficient of the filling retaining wall material; determining a maximum retaining wall thickness according to the total pressure borne by the filling retaining wall and the basic performance parameters of the filling retaining wall material; calculating a theoretical maximum vertical bending moment that can be borne by the filling retaining wall according to the maximum retaining wall thickness; determining a reinforcement number according to the maximum vertical bending moment borne by the filling retaining wall of different shapes and the theoretical maximum vertical bending moment, and obtaining a plurality of filling retaining wall design schemes; determining a filling retaining wall design scheme with the least total price and construction working hours of the filling retaining wall among the plurality of filling retaining wall design schemes as an optimal filling retaining wall design scheme.

2. The method of claim 1, wherein, The method for determining different filling retaining wall shapes and calculating total pressure and maximum vertical bending moment borne by the filling retaining wall according to the filling retaining wall shapes and the filling height specifically comprises the following steps: When the filling retaining wall is in the form of a vertical filling retaining wall, if the filling height is lower than the height of the filling retaining wall, the total pressure P on the filling retaining wall is calculated by the formula The maximum vertical bending moment M on the filling retaining wall is calculated by the formula ​ If the filling height is higher than the filling retaining wall height, the total pressure P of the filling retaining wall is calculated by the formula The maximum vertical bending moment M of the filling retaining wall is calculated by the formula wherein H is the filling retaining wall height; γ is the unit weight of the filling empty area slurry; h is the filling height; and W is the filling retaining wall width.

3. The method of claim 2, wherein, The method for determining different filling retaining wall shapes and calculating total pressure and maximum vertical bending moment borne by the filling retaining wall according to the filling retaining wall shapes and the filling height further comprises the following steps: When the filling retaining wall is in the shape of a trapezoidal filling retaining wall, if the filling height is lower than the filling retaining wall height, the total pressure P on the filling retaining wall is calculated by the formula The maximum vertical bending moment M on the filling retaining wall is calculated by the formula ​ If the filling height is higher than the filling retaining wall height, the formula is used to calculate the total pressure P on the filling retaining wall; the formula is used to calculate the maximum vertical bending moment M on the filling retaining wall; wherein α is the complementary angle of the bottom angle of the trapezoidal filling retaining wall.

4. The method of claim 3, wherein, The method for determining different filling retaining wall shapes and calculating total pressure and maximum vertical bending moment borne by the filling retaining wall according to the filling retaining wall shapes and the filling height further comprises the following steps: When the filling retaining wall is in the shape of a circular arc, if the filling height is lower than the height of the filling retaining wall, the total pressure P on the filling retaining wall is calculated by the formula and the maximum vertical bending moment M on the filling retaining wall is calculated by the formula ​ If the filling height is higher than the filling retaining wall height, the total pressure P on the filling retaining wall is calculated by the formula and the maximum vertical bending moment M on the filling retaining wall is calculated by the formula ​ 5. The method of claim 4, wherein, The method for determining a maximum retaining wall thickness according to total pressure borne by the filling retaining wall and basic performance parameters of the filling retaining wall material specifically comprises the following steps: According to the total pressure P borne by the filling retaining wall and the compression resistance of the filling retaining wall material, the formula is used to calculate the thickness B1 of the first filling retaining wall; wherein f c is the compression strength of the filling retaining wall material; and θ is the included angle between the filling retaining wall and the center line of the roadway. Based on the cylindrical calculation method, the formula is used to calculate the second filling retaining wall thickness B2; wherein r is the roadway radius; Based on the shear resistance of the filling retaining wall material, the formula is used to calculate the third filling retaining wall thickness B3; wherein, f s is the shear strength of the filling retaining wall material; Based on the impermeability of the filling retaining wall material, the formula B4≥48Kh is adopted ab The fourth filling retaining wall thickness B4 is calculated; wherein, K is the impermeability coefficient of the filling retaining wall material; h ab is the static water pressure head height; taking the maximum value among the first filling retaining wall thickness B1, the second filling retaining wall thickness B2, the third filling retaining wall thickness B3 and the fourth filling retaining wall thickness B4 as the maximum retaining wall thickness B.

6. The method of claim 5, wherein, The method for calculating a theoretical maximum vertical bending moment that can be borne by the filling retaining wall according to the maximum retaining wall thickness specifically comprises the following steps: According to the maximum retaining wall thickness B, the formula M d = α0f c WBcalculates the theoretical maximum vertical bending moment M d that the filled retaining wall can withstand; where α0is a partial coefficient.

7. The method of claim 6, wherein, The method for determining a reinforcement number according to the maximum vertical bending moment borne by the filling retaining wall of different shapes and the theoretical maximum vertical bending moment, and obtaining a plurality of filling retaining wall design schemes specifically comprises the following steps: For any shape of filling retaining wall, if the maximum vertical bending moment M received is less than or equal to the theoretical maximum vertical bending moment M d , then the number of reinforcements is zero. If the maximum vertical bending moment M received is greater than the theoretical maximum vertical bending moment M d , the formula is used to calculate the longitudinal tensile reinforcement n1; the formula is used to calculate the transverse tensile reinforcement n2; wherein γ0 is the importance coefficient of the steel structure; γ s is the internal force arm coefficient of the steel; m = W / H is the length-width span ratio of the filling retaining wall; β = 1 / m 2 ; q is the uniform load received by the filling retaining wall; C0 is the concrete cover thickness; f y is the yield strength of the steel.

8. A system for determining a fill berm design, the system comprising: The method comprises the following steps: a basic parameter obtaining module is configured to obtain basic parameters of a mine to-be-filled empty area; the basic parameters include length, width and height of the to-be-filled empty area, and density, setting time and bleeding rate of the material of the empty area; a filling height determining module is configured to determine a filling height according to the basic parameters and on-site requirements; a total pressure borne and maximum vertical bending moment borne calculating module is configured to determine different filling retaining wall shapes, and calculate total pressure and maximum vertical bending moment borne by the filling retaining wall according to the filling retaining wall shapes and the filling height; a basic performance parameter obtaining module is configured to obtain basic performance parameters of the filling retaining wall material; the basic performance parameters include compressive strength, tensile strength, shear strength, structural safety factor, load partial coefficient and impermeability coefficient of the filling retaining wall material; a maximum retaining wall thickness determining module is configured to determine a maximum retaining wall thickness according to total pressure borne by the filling retaining wall and the basic performance parameters of the filling retaining wall material. a maximum retaining wall thickness calculation module configured to determine the maximum retaining wall thickness according to the total pressure borne by the retaining wall and basic performance parameters of the retaining wall material; a theoretical maximum vertical bending moment calculation module configured to calculate the theoretical maximum vertical bending moment that the retaining wall can bear according to the maximum retaining wall thickness; a number of reinforcements calculation module configured to determine the number of reinforcements according to the maximum vertical bending moment borne by the retaining wall of different shapes and the theoretical maximum vertical bending moment, and obtain multiple retaining wall design schemes; an optimal design scheme determination module configured to determine the retaining wall design scheme with the least total cost and construction time of the retaining wall material in the multiple retaining wall design schemes as the optimal retaining wall design scheme.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the filling retaining wall design scheme determination method in any one of claims 1 to 7 when executing the computer program.

10. The electronic device of claim 9, wherein, The memory is a non-transitory computer readable storage medium.

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