Method and device for determining ballast replacement quantity of track bed

Abstract

The application discloses a kind of ballast supplement quantity determination method and device of ballast bed, the method includes: obtaining the ballast bed quality impurity rate detected by geological radar detection technology;Determine the ballast supplement quantity thrown by cleaning screen;Ballast supplement quantity thrown by cleaning screen is the ballast quantity needed to be supplemented to compensate the volume of missing ballast caused by the ballast bed dirt thrown by cleaning screen;Determine the ballast supplement quantity of ballast bed size;Ballast supplement quantity of ballast bed size is the ballast quantity needed to be supplemented to compensate the difference between the size of ballast bed and the standard ballast bed section size;Determine the ballast supplement quantity of lifting;The ballast supplement quantity of lifting is the ballast quantity needed to be supplemented to lift ballast bed;Determine the ballast supplement quantity of landing;The ballast supplement quantity of landing is the ballast quantity needed to be removed to land ballast bed;According to ballast supplement quantity thrown by cleaning screen, ballast supplement quantity of ballast bed size, ballast supplement quantity of lifting, ballast supplement quantity of landing and compaction correction coefficient, determine the final ballast supplement quantity, the present application can improve the determination precision of ballast supplement quantity by cleaning screen, avoid ballast resource waste, reduce cost, realize automatic and intelligent ballast supplement decision.

Description

Technical Field

[0001] This invention relates to the field of intelligent evaluation and ballast cleaning operation technology for dynamic detection of track bed, and particularly to a method and device for determining the amount of track bed ballast cleaning and replenishment. Background Technology

[0002] In the routine maintenance of ballasted tracks, to ensure train safety and operational efficiency, existing technologies typically employ periodic cleaning and screening operations to restore the functionality of the ballast bed. As the core component of railway infrastructure, the stability of the ballast bed directly impacts the safety and comfort of train operation. However, during long-term operation, the ballast is prone to problems such as compaction, contamination, and elasticity deterioration due to repeated dynamic loads from trains and environmental erosion. These problems ultimately require cleaning and screening operations to resolve.

[0003] However, the aforementioned existing technologies have one or more drawbacks in practical applications: First, the lack of accuracy in ballast replenishment is a significant problem. Existing empirical formulas struggle to dynamically adapt to variables such as track bed cross-section differences and soil contamination, resulting in either redundant or insufficient ballast replenishment. Redundant replenishment not only wastes ballast resources but also increases construction costs; while insufficient replenishment easily leads to track smoothness issues, requiring repeated construction and thus increasing maintenance costs throughout the entire lifecycle. Second, the existing ballast cleaning and replenishment methods lack sufficient automation and intelligence. With the digital transformation of railway operation and maintenance systems, traditional empirical methods are no longer sufficient, and the lack of accurate decision-making models based on dynamic detection and operation and maintenance information hinders the development of intelligent operation and maintenance technologies.

[0004] Therefore, improving the accuracy of determining the amount of ballast to be cleaned and repaired, avoiding waste of ballast resources, reducing costs, and achieving automated and intelligent ballast repair decision-making are the technical challenges that urgently need to be addressed in the field of railway track bed maintenance. Summary of the Invention

[0005] This invention provides a method for determining the amount of ballast cleaning and replenishment for track bed, which can improve the accuracy of determining the amount of ballast cleaning and replenishment, avoid waste of ballast resources, reduce costs, and achieve automated and intelligent ballast replenishment decision-making. The method includes:

[0006] The following data were collected: total cleaning volume of the track bed, dirt density in the track bed, bulk density of ballast, standard volume of track bed, actual volume of track bed, track bed lifting amount, track lifting length along the line, track bed lowering amount, track lowering length along the line, sleeper length, standard ballast shoulder width, slope of standard track bed cross section, and track bed uncleanliness rate detected by ground-penetrating radar technology.

[0007] The amount of ballast to be removed during ballast removal is determined based on the total volume of the ballast removal, the density of dirt in the ballast bed, the bulk density of the ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill. The amount of ballast to be removed during ballast removal is the amount of ballast that needs to be added to compensate for the volume of ballast bed lost due to dirt removed during ballast removal. The correction coefficient for new ballast backfill is used to correct for the volume of dirt in the ballast bed that needs to be removed during ballast removal.

[0008] The amount of ballast required to compensate for the difference between the actual volume and the standard volume of the ballast bed is determined.

[0009] The amount of ballast replenishment for ballast raising is determined based on the amount of ballast raised along the track, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard ballast cross section. The amount of ballast replenishment for ballast raising is the amount of ballast that needs to be added when raising the track.

[0010] The amount of ballast to be uniformly removed during track laying is determined based on the amount of track bed to be laid, the length of track bed to be laid along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross section. The amount of ballast to be uniformly removed during track laying is the amount of ballast to be removed during track laying.

[0011] The final amount of ballast replenishment is determined based on the amount of ballast added during screening, the amount of ballast added based on the dimensions of the track bed, the amount of ballast added during track lifting, the amount of ballast added during track leveling, and the compaction correction coefficient. The compaction correction coefficient is determined based on the material and gradation of the track bed.

[0012] This invention provides a device for determining the amount of ballast cleaning and replenishment for track bed, which can improve the accuracy of determining the amount of ballast cleaning and replenishment, avoid waste of ballast resources, reduce costs, and realize automated and intelligent ballast replenishment decision-making. The device includes:

[0013] The acquisition module is used to acquire the total volume of the track bed after cleaning, the dirt density in the track bed, the bulk density of the ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of the sleeper, the width of the standard ballast shoulder, the slope of the standard track bed cross section, and the track bed uncleanliness rate detected by ground-penetrating radar detection technology.

[0014] The module for determining the amount of ballast to be removed during ballast cleaning is used to determine the amount of ballast to be removed during ballast cleaning based on the total volume of ballast cleaning, the density of dirt in the ballast bed, the bulk density of ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill. The amount of ballast to be removed during ballast cleaning is the amount of ballast that needs to be added to compensate for the volume of ballast bed lost due to dirt removed during ballast cleaning. The correction coefficient for new ballast backfill is used to correct for the volume of dirt in the ballast bed that needs to be removed during ballast cleaning.

[0015] The ballast replenishment quantity determination module is used to determine the ballast replenishment quantity based on the actual volume and standard volume of the ballast. The ballast replenishment quantity is the amount of ballast required to compensate for the difference between the ballast dimensions and the standard ballast cross-sectional dimensions.

[0016] The ballast replenishment quantity determination module is used to determine the ballast replenishment quantity based on the ballast bed lifting quantity, the lifting length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross section; the ballast replenishment quantity is the amount of ballast that needs to be added when lifting the ballast bed;

[0017] The ballast removal quantity determination module is used to determine the ballast removal quantity based on the ballast removal quantity, the ballast removal length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast section. The ballast removal quantity is the amount of ballast that needs to be removed when removing ballast from the track.

[0018] The final ballast replenishment quantity determination module is used to determine the final ballast replenishment quantity based on the ballast replenishment quantity for screening and throwing, ballast replenishment quantity for track bed size, ballast replenishment quantity for track lifting, ballast replenishment quantity for track leveling, and compaction correction coefficient; the compaction correction coefficient is determined based on the material and gradation of the track bed.

[0019] This invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-mentioned method for determining the amount of ballast cleaning and replenishment for track bed.

[0020] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for determining the amount of ballast cleaning and replenishment for track bed.

[0021] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the above-described method for determining the amount of ballast cleaning and replenishment for track bed.

[0022] Compared with existing methods for determining the amount of ballast to be removed during track cleaning, this invention, through obtaining the total volume of track cleaning, the density of dirt in the track bed, the bulk density of ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of sleepers, the width of the standard ballast shoulder, the slope of the standard track bed cross-section, and the track bed uncleanliness rate detected by ground-penetrating radar, determines the amount of ballast to be removed during cleaning based on the total volume of cleaning, the density of dirt in the track bed, the bulk density of ballast, the track bed uncleanliness rate, and the new ballast backfill correction coefficient. The amount of ballast to be removed during cleaning is the amount of ballast needed to compensate for the volume of track bed missing due to dirt removed during cleaning. The new ballast backfill correction coefficient is used to correct the volume of dirt that needs to be removed during cleaning. The track bed size is determined based on the actual volume and the standard volume of the track bed. Ballast replenishment amount; Ballast replenishment amount based on ballast bed dimensions refers to the amount of ballast required to compensate for the difference between the ballast bed dimensions and the standard ballast bed cross-section dimensions; Ballast replenishment amount for ballast bed lifting is determined based on the ballast bed lifting amount, the lifting length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross-section; Ballast replenishment amount for ballast bed lifting is the amount of ballast required to supplement the ballast bed when lifting it; Ballast replenishment amount is determined based on the ballast bed lowering amount, the lowering length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross-section. The slope gradient determines the amount of ballast to be removed during track laying. The amount of ballast to be removed during track laying is the amount of ballast that needs to be removed. The final amount of ballast to be added is determined based on the amount of ballast to be removed during screening, the amount of ballast to be added based on track dimensions, the amount of ballast to be added during track lifting, the amount of ballast to be removed during track laying, and the compaction correction coefficient. The compaction correction coefficient is determined based on the material and gradation of the track, which can improve the accuracy of determining the amount of ballast to be added during screening, avoid waste of ballast resources, reduce costs, and realize automated and intelligent ballast addition decisions. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0024] Figure 1 This is a flowchart illustrating a method for determining the amount of ballast to be cleaned and repaired in a track bed according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the cleanroom track bed in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of a soiled track bed in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of a severely soiled track bed in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram comparing the standard cross-section and the actual radar scan cross-section in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram illustrating the lifting and lowering of the track bed in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the installation of the lidar camera assembly and the ground-penetrating radar antenna assembly in an embodiment of the present invention;

[0031] Figure 8 This is a flowchart of a system for determining the amount of ballast cleaning and replenishment in track bed according to an embodiment of the present invention;

[0032] Figure 9 This is a logical schematic diagram of a track bed cleaning and ballast replenishment quantity determination system according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of a track bed cleaning and ballast replenishment quantity determination device according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the computer device structure in an embodiment of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0036] Based on the problems of existing technologies, this invention proposes a method for estimating the amount of ballast to be repaired by combining track bed cross-section reconstruction, dirt level evaluation and maintenance mode. This method enables accurate prediction of the amount of ballast to be repaired before the ballast cleaning operation, optimizes the allocation of construction resources, reduces ballast waste, and provides key algorithms and equipment support for the autonomous decision-making of intelligent track maintenance machinery. This method has technical value for improving the level of digital operation and maintenance of railway infrastructure.

[0037] Figure 1 This is a flowchart illustrating a method for determining the amount of ballast to be cleaned and repaired in a track bed according to an embodiment of the present invention. Figure 1 As shown, the method may include:

[0038] Step 101: Obtain the total cleaning volume of the track bed, the dirt density in the track bed, the bulk density of the ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of the sleeper, the width of the standard ballast shoulder, the slope of the standard track bed cross section, and the track bed uncleanliness rate detected by ground-penetrating radar technology.

[0039] Step 102: Determine the amount of ballast to be removed during ballast removal based on the total volume of the ballast removal, the density of dirt in the ballast bed, the bulk density of the ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill. The amount of ballast to be removed during ballast removal is the amount of ballast that needs to be added to compensate for the volume of ballast bed lost due to dirt removed during ballast removal. The correction coefficient for new ballast backfill is used to correct the volume of dirt in the ballast bed that needs to be removed during ballast removal.

[0040] Step 103: Determine the ballast replenishment amount based on the actual volume and standard volume of the ballast bed; the ballast replenishment amount is the amount of ballast required to compensate for the difference between the ballast bed size and the standard ballast bed cross-sectional size.

[0041] Step 104: Determine the amount of ballast to be added for ballast lifting based on the amount of ballast raised, the length of ballast raised along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard ballast cross section; the amount of ballast to be added for ballast lifting is the amount of ballast that needs to be added for ballast lifting.

[0042] Step 105: Determine the amount of ballast to be uniformly removed during track laying based on the amount of track bed to be laid, the length of track bed to be laid along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross section; the amount of ballast to be uniformly removed during track laying is the amount of ballast to be removed during track laying.

[0043] Step 106: Determine the final amount of ballast to be added based on the amount of ballast to be added after screening, the amount of ballast to be added based on the dimensions of the track bed, the amount of ballast to be added when lifting the track, the amount of ballast to be evenly distributed when dropping the track, and the compaction correction coefficient; the compaction correction coefficient is determined based on the material and gradation of the track bed.

[0044] The embodiments of the present invention can improve the accuracy of determining the amount of ballast to be cleared and replenished through the above steps, avoid waste of ballast resources, reduce costs, and realize automated and intelligent ballast replenishment decision-making.

[0045] In one embodiment, step 101, which involves obtaining the total volume of the track bed after cleaning, the dirt density in the track bed, the bulk density of the ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the sleeper length, the standard ballast shoulder width, the slope of the standard track bed cross-section, and the track bed quality impurity rate detected by ground-penetrating radar technology, may include: obtaining the track bed quality impurity rate through ground-penetrating radar technology, obtaining the track bed cross-sectional dimensions through lidar scanning technology, and calculating the relevant volumes and lengths in conjunction with the actual construction parameters of the track bed. This step ensures that the obtained data is comprehensive and accurate, providing reliable basic data for subsequent ballast replenishment calculations.

[0046] The estimated amount of ballast replenishment during the screeding operation in this embodiment of the invention consists of three parts: the volume of ballast missing due to dirt thrown out during screeding that needs to be replenished, the amount of ballast replenishment caused by the difference between the ballast's own dimensions and the standard cross-section, and the amount of ballast replenishment and uniform ballast replenishment caused by the screeding process involving starting and ending the track.

[0047] First, we will introduce the ballast that needs to be removed from the track bed during the cleaning process. This will cause the track bed to lose volume, which requires additional ballast. In other words, the amount of ballast that needs to be added to compensate for the loss of track bed volume caused by the removal of dirt during cleaning is called the amount of ballast to be added after cleaning.

[0048] In one embodiment, determining the amount of ballast to be thrown out after ballast removal based on the total volume of the ballast cleaning, the dirt density in the ballast bed, the bulk density of the ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill can include: determining the amount of ballast to be thrown out after ballast removal according to the following formula:

[0049] ;

[0050] ;

[0051] ;

[0052] Among them, f v The soil contamination rate of the track bed volume; f m The uncleanliness rate of the track bed; ρ 道砟 ρ is the bulk density of ballast. 脏污 V represents the density of dirt in the track bed; 抛 The volume of dirt and grime that needs to be removed from the track bed for cleaning; V 总 V represents the total volume of the screen; 新砟1 The amount of ballast to be removed during sieving; f(f v () is the correction factor for new ballast backfill.

[0053] The track bed contamination rate is obtained using ground-penetrating radar technology. The amount of contaminant ejected is calculated based on the contamination rate of each section, and the amount of ballast replenishment is then estimated. The specific calculation process is as follows:

[0054] First, calculate the volume of contaminants in the ballast bed. The contaminants (including ballast breakage and abrasion contaminants) fill the spaces between large ballast particles in the ballast bed. When there is a large amount of contaminants, it is in a compacted state. The density of the contaminants in the ballast bed is ρ. 脏污 Under conditions where there is no contamination, the bulk density of ballast is ρ. 道砟 Ground-penetrating radar can detect and obtain the uncleanliness rate f of the track bed. m This refers to the mass content of small particles with a specified particle size (e.g., 25 mm) or smaller in the track bed. Track bed volumetric dirtiness rate f v With the uncleanliness rate of the track bed quality f m The conversion formula is shown in the formula above.

[0055] The formula for calculating the total volume of the screened material can be as follows:

[0056] V 总 =d×w×l;

[0057] Among them, V 总The total volume of the screen is d (unit: cubic meters); the screen depth is d (unit: meters); the screen width is w (unit: meters); and the screen length is l (unit: meters).

[0058] It is important to note that the new ballast backfill correction factor primarily considers that the volume of new ballast to be added is less than the volume of debris to be disposed of. Setting this parameter has a significant revising effect. The reason is explained below: Figure 2 This is a schematic diagram of the cleanroom track bed in an embodiment of the present invention. Figure 3 This is a schematic diagram of a soiled track bed in an embodiment of the present invention, as shown below. Figures 2-3 As shown, in clean or low-soiling conditions (i.e., f) v If the dirt and grime in the track bed is insufficient to fill the gaps between the original ballast particles, then no additional new ballast is required. Figure 4 This is a schematic diagram of a severely soiled track bed in an embodiment of the present invention, as shown below. Figure 4 As shown, in cases of severe contamination, the gaps between large ballast particles before cleaning are filled with contaminants, and even the large ballast particles may lose contact with each other. After the contaminants are ejected during the cleaning process, the original large ballast particles remain, accumulate, and form new gaps. These gaps (mainly contaminant volume before cleaning) do not need to be filled with new ballast. The volume of new ballast that needs to be added is the volume loss under the equivalent accumulation condition of the original large ballast particles in the ballast bed space after cleaning. Based on the above reasons, the volume of new ballast that needs to be added is less than the volume of contaminant V that needs to be ejected during cleaning. 抛 This step allows for the precise calculation of the amount of ballast needed during the ballast cleaning process, preventing resource waste and substandard construction.

[0059] The following section describes how to determine the amount of ballast required for track bed dimensions.

[0060] Figure 5 This is a schematic diagram comparing the standard cross-section and the actual radar-scanned cross-section in an embodiment of the present invention, as shown below. Figure 5 As shown. The amount of ballast required to compensate for the difference between the volume enclosed by the actual cross-section and the standard cross-section caused by radar scanning is obtained by comparing the cross-sectional dimensions of the track bed with the standard dimensions to determine the required ballast compensation.

[0061] In one embodiment, determining the ballast replenishment amount based on the actual volume and standard volume of the track bed may include: scanning the sleepers with lidar to identify the single-track laser scan waveform; identifying sleeper regions based on a three-dimensional deep learning neural network algorithm using the single-track laser scan waveform, and generating sleeper region identification results; determining the target region for each cross-section based on the sleeper region identification results; using computer-aided engineering to divide the discretized three-dimensional geometry into tetrahedral elements and obtain the vertex coordinates of the tetrahedral elements; using a vector method to determine the volume of the tetrahedral elements based on the vertex coordinates; summing the volumes of the tetrahedral elements to obtain the actual volume of the track bed for each cross-section; calculating the difference between the actual volume of the track bed for each cross-section and the standard volume of the track bed to obtain the ballast replenishment amount for each cross-section; and summing the ballast replenishment amounts for each cross-section to determine the ballast replenishment amount for the track bed size.

[0062] First, sleeper identification is performed. The sleeper identification is based on the single-track waveform of laser scanning, and the sleeper area is automatically identified using a neural network method based on three-dimensional deep learning.

[0063] In one embodiment, determining the target area for each cross-section based on the sleeper area identification result may include: when the sleeper area identification result shows that two consecutive cross-sections are sleeper area cross-sections, determining the area in the sleeper area cross-section excluding the sleeper end as the target area of ​​the sleeper area cross-section; when the sleeper area identification result shows that two consecutive cross-sections are sleepless area cross-sections, determining all areas in the sleepless area cross-section as the target area of ​​the sleepless area cross-section.

[0064] In this embodiment, the volume calculation area is divided as follows: (a) If, after identifying the sleepers, two consecutive cross-sections are sleeper areas, the volume is calculated for the area outside the sleeper ends. (b) If, after identifying the sleepers, two consecutive cross-sections are sleeper-free areas, the volume is calculated for the entire profile data. This step ensures the accurate division of the target area, providing a reliable basis for subsequent volume calculations.

[0065] In one embodiment, using computer-aided engineering to divide the discretized three-dimensional geometry into tetrahedral elements and obtain the vertex coordinates of the tetrahedral elements may include: using computer-aided engineering to discretize the three-dimensional geometry in the target area; generating an unstructured mesh for the discretized three-dimensional geometry; dividing the discretized three-dimensional geometry into tetrahedral elements and obtaining the vertex coordinates of the tetrahedral elements.

[0066] In this embodiment, the volume calculation region is meshed: Based on the combination of two consecutive track bed profiles obtained from lidar scanning and the bottom edge sides (outer surface of the track bed) to form a plate-like three-dimensional geometric structure, computer-aided engineering (CAE) is used to automatically discretize the three-dimensional geometry, generating an unstructured mesh, dividing it into N tetrahedral elements. The coordinates of the four vertices of each tetrahedral element are obtained as A. i (xi1,yi1,zi1), B i (xi2,yi2,zi2), C i (xi3,yi3,zi3), D i (xi4,yi4,zi4). This step discretizes complex three-dimensional geometry into simple tetrahedral elements, facilitating subsequent volume calculations.

[0067] In one embodiment, using a vector method to determine the volume of a tetrahedral element based on its vertex coordinates may include: determining the volume of the tetrahedral element according to the following formula:

[0068] ;

[0069] Among them, V i Let A be the volume of the i-th tetrahedral element; i Let A be the first vertex of the tetrahedral element. i (xi1,yi1,zi1); B i B is the second vertex of the tetrahedral element. i (xi2,yi2,zi2); C i Let C be the third vertex of the tetrahedral element. i (xi3,yi3,zi3); D i Let D be the fourth vertex of the tetrahedral element. i (xi4,yi4,zi4). This step allows for the precise calculation of the volume of each tetrahedral unit, providing accurate data support for subsequent total volume calculations.

[0070] In this embodiment, the actual volume is calculated using a vector method, as shown in the expression above. The volume of the three-dimensional geometry is obtained by summing the volumes of N tetrahedral elements. That is, the actual volume of the track bed at each cross-section.

[0071] Standard volume calculation: Based on the standard dimensions of the track bed profile and the spacing between the track bed cross sections, calculate the standard volume V of the track bed. 标准 .

[0072] Calculate the volume difference V 差 as follows:

[0073] V 差 =V 实际 -V 标准 .

[0074] Assume the number of cross-sections within the calculation length is N. 断面 The volume difference between each cross-section and the standard track bed profile is as follows: The actual amount of ballast repair caused, i.e., the amount of ballast repair required to maintain the track bed dimensions, is: .

[0075] This step allows for the accurate calculation of the difference between the actual volume and the standard volume of the track bed, thereby determining the amount of ballast that needs to be added and ensuring that the track bed meets the standard cross-sectional requirements.

[0076] The following section describes how to determine the amount of ballast added during track lifting and the amount of ballast leveling during track lowering. The volume loss or excess of the track bed caused by the amount of track lifting and lowering needs to be addressed through ballast addition and leveling.

[0077] Figure 6 This is a schematic diagram illustrating the raising and lowering of the track bed in an embodiment of the present invention. If the line manager deems the track bed in a section to have settled or be too thick, then raising and lowering the track bed is necessary. Figure 6 As shown.

[0078] In one embodiment, determining the amount of ballast replenishment based on the ballast bed lifting amount, the lifting length along the track, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross-section may include: determining the amount of ballast replenishment according to the following formula:

[0079] ;

[0080] ;

[0081] Among them, l 梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 抬 For the amount of ballast to be added for track lifting; h 抬 To measure the track bed; 抬 S represents the length of the raised track along the route; S represents the slope of the standard track bed cross-section.

[0082] In this embodiment, the track bed lifting amount is h. 抬 (≥0 m), the length of the raised track along the line is l 抬 Based on standard cross-section calculations, the cross-section of the ballast filling area is trapezoidal.

[0083] Among them, the upper side length l of the trapezoid 梯上 The calculation is as follows: l梯上 =l 枕 +2×w 砟肩 .

[0084] The length of the lower side is calculated as: l 梯上 +2×h 抬 ÷S. S is the slope of the standard track bed cross section, which is generally 1:1.75.

[0085] This step allows for the accurate calculation of the amount of ballast that needs to be added during the track lifting process, ensuring that the track bed remains in good condition after the track is lifted.

[0086] In one embodiment, determining the amount of ballast to be uniformly applied based on the amount of track bed slab slab laid, the length of track bed slab laid along the track, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross-section may include: determining the amount of ballast to be uniformly applied according to the following formula:

[0087] ;

[0088] ;

[0089] Among them, l 梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 落 h is the amount of ballast to be laid evenly on the track. 落 For the amount of track bed laid; l 落 S represents the length of the track along the route; S represents the slope of the standard track bed cross-section.

[0090] In this embodiment, similar to the calculation of ballast replenishment, the calculation of the trapezoidal cross-section is the same, and the amount of track bed lowering is h. 落 (≥0 m), the length of the track along the route is l 落 Based on standard cross-section calculations, the cross-section of the ballast uniform zone is trapezoidal.

[0091] This step allows for the accurate calculation of the amount of ballast that needs to be removed during track laying, ensuring that the track bed remains in good condition after track laying.

[0092] In one embodiment, determining the final ballast replenishment amount based on the amount of ballast thrown during screening, the amount of ballast replenishment based on the track bed dimensions, the amount of ballast replenishment for track lifting, the amount of ballast uniformly applied during track placement, and the compaction correction coefficient may include: determining the final ballast replenishment amount according to the following formula:

[0093] ;

[0094] Among them, V 补 V represents the final amount of ballast added. 新砟1 The amount of ballast to be removed during screening; V 新砟2 Add ballast to track bed dimensions; V抬 For the amount of ballast added to the track; V 落 denoted as , where is the amount of ballast applied to the track; K is the compaction correction coefficient.

[0095] In this embodiment, the required compaction density of high-speed railway track bed is not less than 1.75 g / cm³, while the bulk density of loose ballast is approximately 1.48 g / cm³. Therefore, this invention introduces a compaction correction coefficient K based on density comparison. The coefficient varies depending on the material and gradation of the ballast, and the value ranges from K to (1.15 to 1.40).

[0096] This step allows for a comprehensive consideration of various factors to determine the final amount of ballast required, ensuring that the ballast bed reaches its optimal condition after cleaning, lifting, and lowering.

[0097] This invention also proposes a system for determining the amount of ballast cleaning and sieving in the track bed. Its principle is similar to that of a method for determining the amount of ballast cleaning and sieving in the track bed, and will not be described in detail here.

[0098] Figure 7 This is a schematic diagram of the installation of the lidar camera assembly and the ground-penetrating radar antenna assembly in an embodiment of the present invention. Figure 8 This is a flowchart of a system for determining the amount of ballast cleaning and replenishment in a track bed according to an embodiment of the present invention. In one embodiment, as shown... Figures 7-8 As shown, the track bed cleaning and ballast replenishment determination system may include: a lidar camera assembly and a ground-penetrating radar antenna assembly installed on the inspection vehicle. The lidar camera assembly and the ground-penetrating radar antenna assembly can perform lidar detection and ground-penetrating radar detection respectively, so as to obtain relevant data on track bed dirt and track bed profile.

[0099] Figure 9 This is a logical schematic diagram of a track bed cleaning and ballast replenishment quantity determination system according to an embodiment of the present invention, as shown below. Figure 9 As shown, the track bed cleaning and ballast replenishment quantity determination system may also include a cleaning construction input module, used to design cleaning construction based on user-input data and determine the lifting and lowering weight of the track. The system may also include a ground-penetrating radar detection module, which processes the data acquired by the ground-penetrating radar antenna assembly to obtain track bed contamination-related data. Furthermore, the system may include a lidar detection module, which processes the data acquired by the lidar camera assembly to obtain track bed profile-related data.

[0100] In addition, the track bed cleaning and ballast replenishment quantity determination system may also include a mileage calibration and matching module, which is used to perform mileage calibration and matching on the data output by the cleaning and ballast construction input module, the ground radar detection module, and the lidar detection module.

[0101] The track bed cleaning and ballast replenishment quantity determination system may also include a ballast replenishment quantity calculation module. This module uses the track bed cleaning and ballast replenishment quantity determination method to calculate the final ballast replenishment quantity. Figure 8 Total ballast replenishment volume).

[0102] This invention also proposes a device for determining the amount of ballast cleaning and sieving in the track bed. Its principle is similar to that of a method for determining the amount of ballast cleaning and sieving in the track bed, and will not be described in detail here.

[0103] Figure 10 This is a schematic diagram of a track bed cleaning and ballast replenishment determination device according to an embodiment of the present invention, as shown below. Figure 10 As shown, the device for determining the amount of ballast cleaning and replacement includes:

[0104] The acquisition module 1001 is used to acquire the total volume of the track bed after cleaning, the dirt density in the track bed, the bulk density of the ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of the sleeper, the width of the standard ballast shoulder, the slope of the standard track bed cross section, and the track bed quality uncleanliness rate detected by ground-penetrating radar detection technology.

[0105] The ballast removal and replenishment quantity determination module 1002 is used to determine the ballast removal and replenishment quantity based on the total volume of the ballast removal, the density of dirt in the track bed, the bulk density of the ballast, the uncleanliness rate of the track bed, and the new ballast backfill correction coefficient. The ballast removal and replenishment quantity is the amount of ballast that needs to be added to compensate for the missing volume of track bed caused by dirt removal during ballast removal. The new ballast backfill correction coefficient is used to correct the volume of dirt in the track bed that needs to be removed during ballast removal.

[0106] The ballast replenishment quantity determination module 1003 is used to determine the ballast replenishment quantity based on the actual volume and standard volume of the ballast. The ballast replenishment quantity is the amount of ballast required to compensate for the difference between the ballast size and the standard ballast cross-sectional size.

[0107] The ballast replenishment quantity determination module 1004 is used to determine the ballast replenishment quantity based on the ballast bed lifting quantity, the lifting length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross section; the ballast replenishment quantity is the amount of ballast that needs to be added when lifting the ballast bed;

[0108] The ballast removal quantity determination module 1005 is used to determine the ballast removal quantity based on the ballast removal quantity, the ballast removal length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast section. The ballast removal quantity is the amount of ballast that needs to be removed when removing the ballast.

[0109] The final ballast replenishment quantity determination module 1006 is used to determine the final ballast replenishment quantity based on the ballast replenishment quantity for screening and throwing, ballast replenishment quantity for track bed size, ballast replenishment quantity for track lifting, ballast replenishment quantity for track leveling, and compaction correction coefficient; the compaction correction coefficient is determined based on the material and gradation of the track bed.

[0110] In one embodiment, the ballast discharge and replenishment amount determination module 1002 is specifically used for:

[0111] The amount of ballast to be removed during screening should be determined using the following formula:

[0112] ;

[0113] ;

[0114] ;

[0115] Among them, f v The soil contamination rate of the track bed volume; f m The uncleanliness rate of the track bed; ρ 道砟 ρ is the bulk density of ballast. 脏污 V represents the density of dirt in the track bed; 抛 The volume of dirt and grime that needs to be removed from the track bed for cleaning; V 总 V represents the total volume of the screen; 新砟1 The amount of ballast to be removed during sieving; f(f v () is the correction factor for new ballast backfill.

[0116] In one embodiment, the track bed size ballast compensation amount determination module 1003 is specifically used for:

[0117] The sleepers are scanned with lidar to identify the single-track laser scan waveform of the sleepers;

[0118] Based on the single-track waveform of the sleeper laser scan, a neural network algorithm based on three-dimensional deep learning is used to identify the sleeper area and generate the sleeper area identification result.

[0119] Based on the sleeper area identification results, the target area is determined for each cross section;

[0120] Computer-aided engineering was used to divide the discretized three-dimensional geometry into tetrahedral elements, and the vertex coordinates of the tetrahedral elements were obtained.

[0121] The volume of a tetrahedral element is determined using the vector method based on the vertex coordinates of the tetrahedral element.

[0122] The actual volume of the track bed at each cross section is obtained by summing the volumes of the tetrahedral elements.

[0123] The difference between the actual volume of the track bed and the standard volume of the track bed in each section is calculated to obtain the ballast compensation amount for each section.

[0124] The amount of ballast replenishment for each cross-section is summed to determine the amount of ballast replenishment for the track bed dimensions.

[0125] In one embodiment, the track bed size ballast compensation amount determination module 1003 is specifically used for:

[0126] When the sleeper area identification results show that two consecutive cross sections are sleeper area cross sections, the area in the sleeper area cross section excluding the sleeper end is determined as the target area of ​​the sleeper area cross section.

[0127] When the sleeper area identification results show that two consecutive cross sections are sleeper-free areas, all areas in the sleeper-free area cross sections are identified as the target areas of the sleeper-free area cross sections.

[0128] In one embodiment, the track bed size ballast compensation amount determination module 1003 is specifically used for:

[0129] Computer-aided engineering is used to discretize the three-dimensional geometry in the target area;

[0130] Unstructured mesh generation is performed on the discretized 3D geometry, dividing the discretized 3D geometry into tetrahedral elements, and obtaining the vertex coordinates of the tetrahedral elements.

[0131] In one embodiment, the track bed size ballast compensation amount determination module 1003 is specifically used for:

[0132] Determine the volume of a tetrahedral element using the following formula:

[0133] ;

[0134] Among them, V i Let A be the volume of the i-th tetrahedral element; i Let A be the first vertex of the tetrahedral element. i (xi1,yi1,zi1); B i B is the second vertex of the tetrahedral element. i (xi2,yi2,zi2); C i Let C be the third vertex of the tetrahedral element. i (xi3,yi3,zi3); D i Let D be the fourth vertex of the tetrahedral element. i (xi4,yi4,zi4).

[0135] In one embodiment, the ballast replenishment amount determination module 1004 is specifically used for:

[0136] The amount of ballast added for track lifting is determined using the following formula:

[0137] ;

[0138] ;

[0139] Among them, l梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 抬 For the amount of ballast to be added for track lifting; h 抬 To measure the track bed; 抬 S represents the length of the raised track along the route; S represents the slope of the standard track bed cross-section.

[0140] In one embodiment, the ballast leveling quantity determination module 1005 is specifically used for:

[0141] The amount of ballast to be uniformly laid in the track should be determined according to the following formula:

[0142] ;

[0143] ;

[0144] Among them, l 梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 落 h is the amount of ballast to be laid evenly on the track. 落 For the amount of track bed laid; l 落 S represents the length of the track along the route; S represents the slope of the standard track bed cross-section.

[0145] In one embodiment, the final ballast replenishment amount determination module 1006 is specifically used for:

[0146] The final amount of ballast to be added should be determined using the following formula:

[0147] ;

[0148] Among them, V 补 V represents the final amount of ballast added. 新砟1 The amount of ballast to be removed during screening; V 新砟2 Add ballast to track bed dimensions; V 抬 For the amount of ballast added to the track; V 落 denoted as , where is the amount of ballast applied to the track; K is the compaction correction coefficient.

[0149] Compared with existing methods for determining the amount of ballast to be removed during track cleaning, this invention, through obtaining the total volume of track cleaning, the density of dirt in the track bed, the bulk density of ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of sleepers, the width of the standard ballast shoulder, the slope of the standard track bed cross-section, and the track bed uncleanliness rate detected by ground-penetrating radar, determines the amount of ballast to be removed during cleaning based on the total volume of cleaning, the density of dirt in the track bed, the bulk density of ballast, the track bed uncleanliness rate, and the new ballast backfill correction coefficient. The amount of ballast to be removed during cleaning is the amount of ballast needed to compensate for the volume of track bed missing due to dirt removed during cleaning. The new ballast backfill correction coefficient is used to correct the volume of dirt that needs to be removed during cleaning. The track bed size is determined based on the actual volume and the standard volume of the track bed. Ballast replenishment amount; Ballast replenishment amount based on ballast bed dimensions refers to the amount of ballast required to compensate for the difference between the ballast bed dimensions and the standard ballast bed cross-section dimensions; Ballast replenishment amount for ballast bed lifting is determined based on the ballast bed lifting amount, the lifting length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross-section; Ballast replenishment amount for ballast bed lifting is the amount of ballast required to supplement the ballast bed when lifting it; Ballast replenishment amount is determined based on the ballast bed lowering amount, the lowering length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross-section. The slope gradient determines the amount of ballast to be removed during track laying. The amount of ballast to be removed during track laying is the amount of ballast that needs to be removed. The final amount of ballast to be added is determined based on the amount of ballast to be removed during screening, the amount of ballast to be added based on track dimensions, the amount of ballast to be added during track lifting, the amount of ballast to be removed during track laying, and the compaction correction coefficient. The compaction correction coefficient is determined based on the material and gradation of the track, which can improve the accuracy of determining the amount of ballast to be added during screening, avoid waste of ballast resources, reduce costs, and realize automated and intelligent ballast addition decisions.

[0150] The beneficial effects of this invention are as follows: It proposes a method for estimating the amount of ballast replenishment by combining track bed cross-section reconstruction, dirt level evaluation and maintenance mode, so as to achieve accurate prediction of the amount of ballast replenishment before ballast cleaning operation, optimize the allocation of construction resources, reduce ballast waste, and provide key algorithm and equipment support for the autonomous decision-making of intelligent track maintenance machinery, which has technical value for improving the digital operation and maintenance level of railway infrastructure.

[0151] Based on the aforementioned inventive concept, such as Figure 11 As shown, the present invention also proposes a computer device 1100, including a memory 1110, a processor 1120, and a computer program 1130 stored in the memory 1110 and executable on the processor 1120. When the processor 1120 executes the computer program 1130, it implements the aforementioned method for determining the amount of track bed cleaning and ballast replenishment.

[0152] Based on the aforementioned inventive concept, the present invention proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned method for determining the amount of ballast cleaning and replenishment for track bed.

[0153] Based on the aforementioned inventive concept, the present invention proposes a computer program product, which includes a computer program that, when executed by a processor, implements a method for determining the amount of ballast cleaning and replenishment for track bed.

[0154] The acquisition, storage, use, and processing of data in this application all comply with relevant regulations.

[0155] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0156] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0157] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0158] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0159] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for determining the amount of ballast to be cleaned and replaced in track bed, characterized in that, include: The following data were collected: total cleaning volume of the track bed, dirt density in the track bed, bulk density of ballast, standard volume of track bed, actual volume of track bed, track bed lifting amount, track lifting length along the line, track bed lowering amount, track lowering length along the line, sleeper length, standard ballast shoulder width, slope of standard track bed cross section, and track bed uncleanliness rate detected by ground-penetrating radar technology. The amount of ballast to be removed during ballast removal is determined based on the total volume of the ballast removal, the density of dirt in the ballast bed, the bulk density of the ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill. The amount of ballast to be removed during ballast removal is the amount of ballast that needs to be added to compensate for the volume of ballast lost due to dirt removed during ballast removal. The correction coefficient for new ballast backfill is used to correct for the volume of dirt that needs to be removed during ballast removal. The amount of ballast replenishment for the track bed is determined based on the actual volume and standard volume of the track bed; the amount of ballast replenishment for the track bed is the amount of ballast required to compensate for the difference between the track bed size and the standard track bed cross-sectional size. The amount of additional ballast for track lifting is determined based on the amount of track bed lifting, the length of track bed lifting along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross section; the amount of additional ballast for track lifting refers to the amount of ballast that needs to be added when lifting the track bed. The amount of ballast to be uniformly removed during track laying is determined based on the amount of track bed to be laid, the length of track bed to be laid along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross section; the amount of ballast to be uniformly removed during track laying is the amount of ballast to be removed during track laying. The final amount of ballast replenishment is determined based on the amount of ballast removed during screening, the amount of ballast replenishment based on the track bed dimensions, the amount of ballast replenishment during track lifting, the amount of ballast leveling during track laying, and the compaction correction coefficient; the compaction correction coefficient is determined based on the material and gradation of the track bed.

2. The method as described in claim 1, characterized in that, Based on the total volume of the ballast cleaning process, the density of dirt in the ballast bed, the bulk density of the ballast, the uncleanliness rate of the ballast bed, and the correction coefficient for new ballast backfill, the amount of ballast to be removed and replaced after ballast cleaning is determined, including: The amount of ballast to be removed during screening should be determined using the following formula: ； ； ； Among them, f v The soil contamination rate of the track bed volume; f m The uncleanliness rate of the track bed; ρ 道砟 ρ is the bulk density of ballast. 脏污 V represents the density of dirt in the track bed; 抛 The volume of dirt and grime that needs to be removed from the track bed for cleaning; V 总 V represents the total volume of the screen; 新砟1 The amount of ballast to be removed during sieving; f(f v () is the correction factor for new ballast backfill.

3. The method as described in claim 1, characterized in that, Based on the actual volume and standard volume of the track bed, determine the ballast replenishment amount, including: The sleepers are scanned with lidar to identify the single-track laser scan waveform of the sleepers; Based on the single-track waveform of the sleeper laser scan, a neural network algorithm based on three-dimensional deep learning is used to identify the sleeper area and generate the sleeper area identification result. Based on the sleeper area identification results, the target area is determined for each cross section; Computer-aided engineering was used to divide the discretized three-dimensional geometry into tetrahedral elements, and the vertex coordinates of the tetrahedral elements were obtained. The volume of a tetrahedral element is determined using the vector method based on the vertex coordinates of the tetrahedral element. The actual volume of the track bed at each cross section is obtained by summing the volumes of the tetrahedral elements. The difference between the actual volume of the track bed and the standard volume of the track bed in each section is calculated to obtain the ballast compensation amount for each section. The amount of ballast replenishment for each cross-section is summed to determine the amount of ballast replenishment for the track bed dimensions.

4. The method as described in claim 3, characterized in that, Based on the sleeper area identification results, the target area is determined for each cross-section, including: When the sleeper area identification results show that two consecutive cross sections are sleeper area cross sections, the area in the sleeper area cross section excluding the sleeper end is determined as the target area of ​​the sleeper area cross section. When the sleeper area identification results show that two consecutive cross sections are sleeper-free areas, all areas in the sleeper-free area cross sections are identified as the target areas of the sleeper-free area cross sections.

5. The method as described in claim 3, characterized in that, Using computer-aided engineering, the discretized 3D geometry is divided into tetrahedral elements, and the vertex coordinates of the tetrahedral elements are obtained, including: Computer-aided engineering is used to discretize the three-dimensional geometry in the target area; Unstructured mesh generation is performed on the discretized 3D geometry, dividing the discretized 3D geometry into tetrahedral elements, and obtaining the vertex coordinates of the tetrahedral elements.

6. The method as described in claim 3, characterized in that, The volume of a tetrahedral element is determined using a vector method based on the vertex coordinates of the tetrahedral element, including: Determine the volume of a tetrahedral element using the following formula: ； Among them, V i Let A be the volume of the i-th tetrahedral element; i Let A be the first vertex of the tetrahedral element. i (xi1,yi1,zi1); B i B is the second vertex of the tetrahedral element. i (xi2,yi2,zi2); C i Let C be the third vertex of the tetrahedral element. i (xi3,yi3,zi3); D i Let D be the fourth vertex of the tetrahedral element. i (xi4,yi4,zi4).

7. The method as described in claim 1, characterized in that, The amount of additional ballast added for track lifting is determined based on the amount of track bed lifting, the length of track bed lifting along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross-section. This includes: The amount of ballast added for track lifting is determined using the following formula: ； ； Among them, l 梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 抬 For the amount of ballast to be added for track lifting; h 抬 To measure the track bed; 抬 S represents the length of the raised track along the route; S represents the slope of the standard track bed cross-section.

8. The method as described in claim 1, characterized in that, The amount of ballast evenly applied is determined based on the amount of track bed slab laid, the length of track bed slab laid along the line, the length of sleepers, the width of standard ballast shoulders, and the slope of the standard track bed cross-section. This includes: The amount of ballast to be uniformly laid in the track should be determined according to the following formula: ； ； Among them, l 梯上 The length of the upper side of the trapezoidal cross-section of the ballast filling area; l 枕 w is the length of the sleeper. 砟肩 Standard ballast shoulder width; V 落 h is the amount of ballast to be laid evenly on the track. 落 For the amount of track bed to be laid; l 落 S represents the length of the track along the route; S represents the slope of the standard track bed cross-section.

9. The method as described in claim 1, characterized in that, The final ballast replenishment amount is determined based on the amount of ballast removed during screening, the amount of ballast replenishment based on the track bed dimensions, the amount of ballast replenishment for track lifting, the amount of ballast uniformly applied during track laying, and the compaction correction coefficient. This includes: The final amount of ballast to be added should be determined using the following formula: ； Among them, V 补 V represents the final amount of ballast added. 新砟1 The amount of ballast to be removed during screening; V 新砟2 Add ballast to track bed dimensions; V 抬 For the amount of ballast to be added for track lifting; V 落 denoted as , where is the amount of ballast applied to the track; K is the compaction correction coefficient.

10. A device for determining the amount of ballast cleaning and replenishment for track bed, characterized in that, include: The acquisition module is used to acquire the total volume of the track bed after cleaning, the dirt density in the track bed, the bulk density of the ballast, the standard volume of the track bed, the actual volume of the track bed, the amount of track bed raised, the length of track bed raised along the line, the amount of track bed lowered, the length of track bed lowered along the line, the length of the sleeper, the width of the standard ballast shoulder, the slope of the standard track bed cross section, and the track bed uncleanliness rate detected by ground-penetrating radar detection technology. The ballast removal and replenishment quantity determination module is used to determine the ballast removal and replenishment quantity based on the total volume of the ballast cleaning, the density of dirt in the track bed, the bulk density of the ballast, the uncleanliness rate of the track bed, and the new ballast backfill correction coefficient. The ballast removal and replenishment quantity is the amount of ballast that needs to be added to compensate for the volume of track bed lost due to dirt removal during ballast cleaning. The new ballast backfill correction coefficient is used to correct for the volume of dirt in the track bed that needs to be removed during ballast cleaning. The ballast replenishment quantity determination module is used to determine the ballast replenishment quantity based on the actual volume and standard volume of the ballast bed; the ballast replenishment quantity is the amount of ballast required to compensate for the difference between the ballast bed size and the standard ballast bed cross-sectional size. The ballast replenishment quantity determination module is used to determine the ballast replenishment quantity based on the ballast bed lifting quantity, the lifting length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast bed cross section; the ballast replenishment quantity is the amount of ballast that needs to be added to the ballast bed for lifting. The ballast removal quantity determination module is used to determine the ballast removal quantity based on the ballast removal quantity, the ballast removal length along the line, the sleeper length, the standard ballast shoulder width, and the slope gradient of the standard ballast section; the ballast removal quantity is the amount of ballast that needs to be removed when removing the ballast. The final ballast replenishment quantity determination module is used to determine the final ballast replenishment quantity based on the ballast replenishment quantity for screening and throwing, ballast replenishment quantity for track bed size, ballast replenishment quantity for track lifting, ballast replenishment quantity for track leveling, and compaction correction coefficient; the compaction correction coefficient is determined based on the material and gradation of the track bed.

11. A computer 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 of any one of claims 1 to 9.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method of any one of claims 1 to 9.

13. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the method of any one of claims 1 to 9.

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