Sand particle CT (Computed Tomography) scanning mold

Abstract

The utility model discloses a sand particle CT (Computed Tomography) scanning mould which comprises a mould shell, a plurality of transverse plate slots, a plurality of transverse partition plates and a vertical baffle, a rectangular window is arranged on the front side of the mould shell, a vertical plate slot is arranged at the top of the mould shell, and the length of the vertical plate slot is slightly greater than the width of the window; the plurality of transverse plate slots are parallel to the bottom surface of the mold shell and are formed in the inner side surface of the mold along the height direction of the mold shell; a plurality of transverse partition plates can be inserted into the transverse plate slots from windows formed in the front side of the mold shell, and are used for bearing a plurality of sand particles; the vertical baffle can be inserted from the vertical plate insertion groove and used for shielding the window formed in the front side of the mold shell, sand particles on each layer are independent, when the particles are reconstructed, the particles on each layer can be independently analyzed, and the size of reconstruction data is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a sand particle CT scanning mold. Background Art

[0002] In the field of geotechnical engineering, soil is one of the most common engineering materials. Studies have shown that the macroscopic mechanical behavior of soil is closely related to the particle characteristics of soil particles. Therefore, in order to explore the mechanical mechanism of the macroscopic mechanical behavior of soil, it is inevitable to study the particle characteristics of soil particles. At present, CT (computed tomography) scanning test is one of the most commonly used methods to accurately obtain the characteristics of soil particles. The CT scanning method can perform non-destructive testing on soil particles, which can not only accurately obtain detailed particle size and shape information of soil particles, but also detect cracks or internal pores inside soil particles.

[0003] Before CT scanning, the first thing to do is to place the sand particles in the CT scanning mold to complete the preparation of the scanning sample. Therefore, the form of the CT scanning mold will affect the effect of CT scanning.

[0004] Most existing CT scanning molds are simple containers in the shape of cylinders or cuboids. Soil particles are randomly filled into the containers. In order to ensure that the particles do not move during the scanning process, the sample is often compacted. This will make it difficult for the reconstructed particles to find the corresponding actual particles, and too much contact between particles also increases the difficulty of segmentation during particle reconstruction. Therefore, it is necessary to establish a new sand particle CT scanning mold to obtain better CT scanning results. Utility Model Content

[0005] The utility model aims to provide a sand particle CT scanning mold to promote the research of CT scanning of granular materials, improve the effect of sand particle CT scanning, reduce the difficulty of particle segmentation when reconstructing particles through CT images, and ensure that the actual particles corresponding to the reconstructed particles can be easily found.

[0006] The technical solution of the utility model is:

[0007] A sand particle CT scanning mold comprises: a mold shell, a window is provided on the front side, and a vertical plate slot is provided on the top; a plurality of horizontal plate slots are parallel to the bottom surface of the mold shell, and the plurality of horizontal plate slots are arranged on the inner side of the mold along the height direction of the mold shell; a plurality of horizontal partitions can be inserted into the horizontal plate slots from the windows provided on the front side of the mold shell, and the horizontal partitions are used to carry a plurality of sand particles; a vertical baffle can be inserted from the vertical plate slots and is used to cover the window provided on the front side of the mold shell.

[0008] Furthermore, the mold shell is a cuboid with a square bottom.

[0009] Furthermore, the plurality of transverse plate slots are arranged at equal distances from each other.

[0010] Furthermore, each horizontal plate slot includes four horizontal bars, which are configured into two groups. The two groups of horizontal bars are symmetrically arranged on the left and right sides of the mold shell. Each group of horizontal bars includes two horizontal bars. A spacing channel for inserting the horizontal partition is provided between the two horizontal bars of each group of horizontal bars, and the spacing channels between the two groups of horizontal bars are highly aligned to make the surface of the horizontal partition horizontal.

[0011] Furthermore, the plate surface of the vertical baffle inserted into the vertical plate slot abuts against one end of the horizontal partition inserted into the horizontal plate slot.

[0012] Furthermore, each of the transverse partitions is a square thin plate.

[0013] Furthermore, the sand particles are fixed to the top of the transverse partition by double-sided adhesive tape, which can ensure that the coral sand particles do not move during the CT scanning process. In addition, the double-sided adhesive tape will not affect the particles, and the particles can be easily removed from the partition for other studies after CT scanning.

[0014] Furthermore, the plurality of sand particles carried on each transverse partition are arranged in a rectangular array.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] First, since the particles are regularly arranged, there is little contact between the particles, which makes it easier to segment the particles during particle reconstruction.

[0017] Second, since the particles are arranged regularly, the actual particles can also easily find the corresponding reconstructed particle images.

[0018] Third, since each layer of particles is independent, each layer of particles can be analyzed separately when reconstructing the particles, which reduces the size of the reconstructed data and allows the particle reconstruction process to be performed on a computer with poorer performance. In addition, by changing the geometric dimensions of the mold and the number of separation layers, the sample preparation requirements of CT scanning test specimens of different sizes can also be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the outer frame of the mold in the utility model;

[0020] Figure 2 It is a schematic diagram of the transverse partition in the utility model;

[0021] Figure 3 It is a schematic diagram of a vertical baffle in the utility model;

[0022] Figure 4 It is a schematic diagram of the outer frame of the mold after the horizontal partition is inserted in the utility model;

[0023] Figure 5 It is a schematic diagram of the outer frame of the mold after the horizontal partition and the vertical baffle are inserted in the utility model;

[0024] Figure 6 It is a schematic diagram of regularly arranging and fixing sand particles on a transverse partition in the utility model.

[0025] Among them, 1. vertical board slots, 2. horizontal bars, 3. horizontal partitions, 4. vertical baffles, 5. double-sided tape, 6. sand particles. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 To the attached Figure 6 , the specific implementation methods of the utility model are described in detail. In the description of the utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0028] It should be noted that the circuit connections involved in the present invention all adopt conventional circuit connection methods and do not involve any innovation.

[0029] Example

[0030] A sand particle CT scanning mold comprises: a mold shell, a plurality of transverse plate slots, a plurality of transverse partitions 3 and a vertical baffle 4, such as Figure 1 As shown, a window is opened on the front side of the mold shell, the window is rectangular, and a vertical plate slot 1 is opened on the top of the mold shell, and the length of the vertical plate slot 1 is slightly longer than the width of the window; Figure 1 and Figure 4As shown, multiple transverse plate slots are parallel to the bottom surface of the mold shell, and multiple transverse plate slots are arranged on the inner side of the mold along the height direction of the mold shell; multiple transverse partitions 3 can be inserted into the transverse plate slots from the windows opened on the front side of the mold shell, and the transverse partitions 3 are used to carry multiple sand particles 6; the vertical baffles 4 can be inserted from the vertical plate slots 1 to cover the windows opened on the front side of the mold shell.

[0031] like Figure 1 and Figure 4 As shown, the mold shell is a rectangular parallelepiped with a square bottom surface. The mold shell is a rectangular parallelepiped, which is convenient for mold processing and convenient for inserting the horizontal partition 3.

[0032] In such Figure 2 In the illustrated embodiment, a plurality of the transverse plate slots are arranged at equal distances from each other.

[0033] Specific as Figure 2 and Figure 4 As shown, each transverse plate slot includes four transverse bars 2, and the four transverse bars 2 are configured into two groups. The two groups of transverse bars are symmetrically arranged on the left and right sides of the mold shell, and each group of transverse bars includes two transverse bars 2. A spacing channel for inserting the transverse partition 3 is provided between the two transverse bars 2 of each group of transverse bars, and the spacing channels between the two groups of transverse bars are highly aligned to make the surface of the transverse partition 3 horizontal.

[0034] like Figure 5 As shown, the plate surface of the vertical baffle 4 inserted into the vertical plate slot 1 abuts against one end of the horizontal partition 3 inserted into the horizontal plate slot, so as to fix the front and rear ends of the horizontal partition 3 in the horizontal plate slot.

[0035] In such Figure 1 and Figure 2 and Figure 4 In the embodiment shown, each of the transverse partitions 3 is a square thin plate, and the side length of the plate is slightly smaller than the side length of the bottom surface of the mold outer frame, which can reduce the distance between the transverse partition 3 and the inner side surface of the mold shell and prevent the transverse partition 3 from shaking left and right. The square transverse partition is convenient for splicing multiple transverse partitions during production, and is also convenient for arranging sand particles in a regular array on the transverse partition.

[0036] like Figure 6 As shown, the sand particles 6 are fixed to the top of the transverse partition 3 by double-sided adhesive tape, which can ensure that the coral sand particles do not move during the CT scanning process. In addition, the double-sided adhesive tape will not affect the particles, and the particles can be easily removed from the partition for other research after CT scanning.

[0037] like Figure 6 As shown, the plurality of sand particles 6 carried by each transverse partition 2 are arranged in a rectangular array. The regularly arranged sand particles 6 make the contact between each sand particle very small, which facilitates the segmentation of particles during particle reconstruction.

[0038] The specific dimensions of the mold components are determined according to actual needs and can be freely selected within the range that does not affect the CT scanning test. A sand particle CT scanning mold designed in this embodiment has a bottom side length of 40mm, a height of 80mm, and a thickness of 2mm; the cross section of each horizontal bar 2 is a rectangle with a length of 2mm and a width of 1mm, and the height of the horizontal bar 2 is 40mm; the thickness of the horizontal partition is 1mm and the side length is 36mm; this embodiment is provided with 10 horizontal plate slots and 10 horizontal partitions. When in use:

[0039] Pull out 10 transverse partitions from the mold and stick double-sided tape 5 on the top surface of the partitions;

[0040] The coral sand particles 6 are arranged regularly and adhered to the transverse partition 3 by double-sided adhesive tape 5, as shown in FIG. Figure 6 In the exemplary embodiment, 16 sand particles 6 are placed on each transverse partition 3, and the sand particles 6 are regularly distributed in 4 rows and 4 columns;

[0041] like Figure 6 As shown, number the regularly arranged sand particles and take photos to record them;

[0042] Insert the horizontal partition plate carrying the sand particles into the horizontal slot, and insert the vertical baffle plate from the vertical plate slot on the top of the mold shell. The thickness of the vertical baffle plate is 1 mm, the length is 38 mm, and the width is 36 mm. At this point, the sample is prepared.

[0043] The above disclosures are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. Sand particle CT scanning mold, characterized in that, include: The mold shell has a window on the front side and a vertical plate slot (1) on the top; A plurality of transverse plate slots are parallel to the bottom surface of the mold shell, and the plurality of transverse plate slots are arranged on the inner side surface of the mold along the height direction of the mold shell; A plurality of transverse partitions (3) can be inserted into the transverse plate slots through windows provided on the front side of the mold shell, and the transverse partitions (3) are used to carry a plurality of sand particles (6); The vertical baffle (4) can be inserted from the vertical plate slot (1) and is used to cover the window opened on the front side of the mold shell.

2. The sand particle CT scanning mold according to claim 1, characterized in that: The mold shell is a cuboid with a square bottom.

3. The sand particle CT scanning mold according to claim 1, characterized in that: The plurality of transverse plate slots are arranged at equal distances from each other.

4. The sand particle CT scanning mold according to claim 2, characterized in that: Each transverse plate slot comprises four transverse bars (2), the four transverse bars (2) are configured into two groups, the two groups of transverse bars are symmetrically arranged on the left and right sides of the mold shell, each group of transverse bars comprises two transverse bars (2), a spacing channel for inserting the transverse partition plate (3) is provided between the two transverse bars (2) of each group of transverse bars, and the spacing channels between the two groups of transverse bars are highly aligned so that the surface of the transverse partition plate (3) is horizontal.

5. The sand particle CT scanning mold according to claim 1, characterized in that: The plate surface of the vertical baffle (4) inserted from the vertical plate slot (1) abuts against one end of the horizontal partition (3) inserted into the horizontal plate slot, so as to fix the horizontal partition (3) inserted into the horizontal plate slot.

6. The sand particle CT scanning mold according to claim 2, characterized in that: Each of the transverse partitions (3) is a square thin plate.

7. The sand particle CT scanning mold according to claim 1, characterized in that: The sand particles (6) are fixed to the top of the transverse partition (3) by means of double-sided adhesive tape (5).

8. The sand particle CT scanning mold according to claim 1, characterized in that: The plurality of sand particles (6) carried by each transverse partition (3) are arranged in a rectangular array.

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