CN216646280U - Soil body crack evolution observation device - Google Patents
Soil body crack evolution observation device Download PDFInfo
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- CN216646280U CN216646280U CN202122557438.8U CN202122557438U CN216646280U CN 216646280 U CN216646280 U CN 216646280U CN 202122557438 U CN202122557438 U CN 202122557438U CN 216646280 U CN216646280 U CN 216646280U
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- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a soil body crack evolution observation device, relates to the field of geotechnical engineering, and solves the problem that a soil body crack image obtained by an existing test device cannot accurately obtain crack morphological characteristic parameters. The technical scheme adopted by the utility model is as follows: the soil body crack evolution observation device comprises a base, wherein a flat observation area is arranged on the upper surface of the base, length scales are arranged in the observation area, and an outer cover is arranged in the observation area; the top of dustcoat sets up the camera mounting bracket, perhaps installs the support frame on the base, and the support frame sets up the camera mounting bracket directly over the observation area. The sample is placed in an observation area for shooting, and due to the fact that length scales are arranged in the observation area, a self-contained reference system of soil body fracture evolution images is shot, and fracture morphological characteristic parameters such as fracture length, width, fracture rate and fractal dimension are obtained with higher reliability by combining an image processing technology. The method is used for observing and shooting the soil body sample, and provides a basis for researching the evolution and development rule of the crack.
Description
Technical Field
The utility model relates to the field of geotechnical engineering, in particular to a device for observing evolution of soil body cracks and acquiring soil body crack images.
Background
Soil body cracks are an inducing factor for the generation of a plurality of engineering problems. Geotechnical engineering investigation norm (GB50021-2001) (2009 edition) and building foundation design norm (GB50007-2011) take crack development characteristics as important indexes which need to be found out and evaluated in geotechnical engineering investigation of construction engineering and influence factors which need to be paid attention to in foundation design of the building engineering. When the soil body fracture evolution research is developed, accurate fracture morphological characteristic parameters are required to be obtained so as to carry out quantitative characterization on the fracture, so that the soil body needs to be tested, and the fracture evolution in the test process needs to be observed and recorded. The recording and observation are easily interfered by environment and human factors, so that certain errors exist between the source image data and the actual situation, the reliability of fracture characteristic parameters extracted by adopting an image processing technology is directly influenced, and the test result is influenced.
The patent with the publication number of CN 208187890U discloses an automatic soil crack monitoring device, which comprises a soil sample photographing system and a soil sample weighing system which are arranged in a constant temperature and humidity box, wherein the soil sample is arranged on a tray of the soil sample weighing system, and an illuminating lamp is also arranged in the constant temperature and humidity box; the soil sample photographing system is provided with cameras capable of photographing soil samples in real time from different directions, and the soil sample weighing system transmits the collected soil sample mass change data and the soil sample form change data collected by the soil sample photographing system to the control and data processing system. The soil sample is directly placed on the tray to be directly photographed, and because the tray does not have a standard size as a reference, the obtained image lacks a reference system, and fracture morphological characteristic parameters obtained from the image through the data processing system are not accurate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a soil body fracture evolution observation device, which solves the problem that a soil body fracture image obtained by the existing test device cannot accurately obtain fracture morphological characteristic parameters.
The technical scheme adopted by the utility model is as follows: the soil body crack evolution observation device comprises a base, wherein a flat observation area is arranged on the upper surface of the base, length scales are arranged in the observation area, and an outer cover is arranged in the observation area; the top of dustcoat sets up the camera mounting bracket, perhaps installs the support frame on the base, and the support frame sets up the camera mounting bracket directly over the observation area.
Further, the method comprises the following steps: the soil body crack evolution testing device also comprises a camera and a control and data processing system, wherein the camera is arranged on the camera mounting frame, and the control and data processing system is electrically connected with the camera.
Further, the method comprises the following steps: an annular clamping groove or a limiting table is arranged around the observation area of the base, and the outer cover is placed in the clamping groove or the limiting table. Further, the method comprises the following steps: the clamping groove is large in upper portion and small in lower portion, and the contact surface of the limiting table and the outer cover is inclined.
Further, the method comprises the following steps: the top of dustcoat sets up with the relative position of camera mounting bracket and shoots the hole, and the inboard of dustcoat sets up the light, and the skin of dustcoat is light tight material, and the inlayer of dustcoat is for mending the worn-out fur.
Specifically, the method comprises the following steps: a sample taking and placing opening is formed in one side of the outer cover, and the sample taking and placing opening is hinged with a light-tight cover plate; the top of four lateral walls of dustcoat sets up the light, and the light is the LED shadowless lamp.
Further, the method comprises the following steps: the base upper surface sets up radial length scale, and the zero point of length scale is located the original point, is the camera mounting bracket directly over the original point.
Specifically, the method comprises the following steps: the length scale on the upper surface of the base is in a cross shape, and the zero point of the length scale is in the cross point.
Further, the method comprises the following steps: the bottom of the base is provided with at least three height adjusting supports, and the base is also provided with leveling bubbles.
Further, the method comprises the following steps: the base is rectangular, and the four corners of the base are respectively provided with a height adjusting support; or the base is circular, and three height adjusting supports are uniformly arranged around the base; the lower end of each height adjusting support is provided with a wheel which is a universal wheel with a brake.
The utility model has the beneficial effects that: the soil body crack evolution observation device is used for observing and shooting a soil body sample, thereby providing a basis for researching the evolution and development rule of cracks. The sample is placed in an observation area of the base for shooting, and the observation area is provided with length scales, so that a soil body fracture evolution image obtained by shooting is provided with a reference system, and fracture morphological characteristic parameters such as fracture length, width, fracture rate, fractal dimension and the like with higher reliability are obtained by combining an image processing technology, so that the evolution process and the law of the soil body fracture are more accurately represented.
The dustcoat is placed in the draw-in groove of base or spacing platform draw-in groove or spacing platform, makes the dustcoat place in the base firmly. The inboard of dustcoat sets up the light, and the skin of dustcoat is light-tight material, makes the shooting process not receive external light's influence, guarantees the unanimity of shooting light to can guarantee to shoot under the best lighting conditions. The upper surface of the base is provided with radial length scales, the sample is placed at the original point, and the soil body fracture images can be analyzed from a plurality of reference systems. The base is provided with a height adjusting support and leveling bubbles, so that the base can be kept level.
Drawings
FIG. 1 is a schematic diagram of an observation device for soil body fracture evolution.
Reference numerals are as follows: the device comprises a base 1, an outer cover 2, a camera mounting frame 3, a support frame 4, a control and data processing system 5, an illuminating lamp 6, a sample taking and placing port 7, a height adjusting support 8, leveling bubbles 9 and wheels 10.
Detailed Description
The utility model will be further explained with reference to the drawings.
As shown in figure 1, the soil body crack evolution observation device comprises a base 1, wherein a flat observation area is arranged on the upper surface of the base 1, and length scales are arranged in the observation area. The base 1 is plate-shaped, and may be any polygon or circle, for example, the base 1 is rectangular, and further, for example, the base 1 is a plate-shaped structure of 90cm × 90cm × 2 cm. The base 1 may be plastic, wood or steel, for example stainless steel. The observation area is used for placing a sample and observing, the whole upper surface of the base 1 can be the observation area, and the part of the upper surface of the base 1 can also be the observation area, and the observation area is flat. The base 1 can be directly placed on the ground or a table top for observation, or at least three height adjusting supports 8 are arranged at the bottom of the base 1, and leveling air bubbles 9 are further arranged on the upper surface of the base 1, so that the base 1 can be observed after leveling. The leveling bubble 9 is a leveling bubble, and is preferably disposed at the center of the base 1. The height adjusting supports 8 are used for leveling the base 1, and therefore 3-4 height adjusting supports are preferred, for example, the base 1 is rectangular, and the height adjusting supports 8 are respectively arranged at four corners of the base 1; or the base 1 is circular, and three height adjusting supports 8 are uniformly arranged around the base 1. The height adjusting support 8 is of an existing structure, and is provided with an adjusting bolt for adjusting the height. To facilitate the movement of the base 1, wheels 10 are provided on the bottom of the base 1, for example, the wheels 10 are provided on the bottom of the height adjusting support 8. The wheel 10 is preferably a braked castor wheel to facilitate temporary fixing of the wheel 10 during use.
The observation area of the base 1 is provided with the outer cover 2, and the outer cover 2 can be directly placed on the base 1 and also can be fixed or hinged on the base 1. For example, a clamping groove or a limiting table in an annular shape is arranged around the observation area of the base 1, the outer cover 2 is placed in the clamping groove or the limiting table, and the outer cover 2 is temporarily fixed on the base 1 and can be directly taken down from the base 1. The clamping groove on the base 1 is preferably large at the top and small at the bottom, so that the outer cover 2 can be conveniently placed in the clamping groove. The contact surface of the limiting table and the outer cover 2 is inclined, so that the outer cover 2 can be conveniently placed into the limiting table. The outer contour of the housing 2 may be hemispherical, cylindrical or other shapes, for example, the outer contour of the housing 2 is a cuboid. The housing 2 is disposed in the observation area and is used for forming a relatively closed observation environment. The housing 2 may be closed or open. For example, the side plate and the top plate of the outer cover 2 enclose a closed environment, and at this time, the top plate is made of a transparent material or is directly provided with a shooting hole; alternatively, the housing 2 is provided with only side panels, and the top is open, and the image is taken directly from the top of the housing 2. The observation area in dustcoat 2 is put into to the sample, and the accessible is opened and is put into behind dustcoat 2, perhaps puts into from the opening at the 2 tops of the cover body, perhaps sets up the sample at the lateral wall of the cover body 2 and gets and put mouth 7, and the sample is got and is put the articulated apron of mouth 7 department, and the material of apron is best unanimous with the material of the cover body 2.
The outer cover 2 can be made of transparent material, or can be made of opaque material or opaque structure. The outer cover 2 is made of transparent materials, shooting can be carried out through an external light source, or a lighting lamp 6 is arranged for light supplement; dustcoat 2 is light-tight material or light-tight structure, and the inboard of dustcoat 2 sets up light 6, and light 6 is the LED shadowless lamp best, and light 6 provides the light source of shooting to the illumination condition that the messenger shot is adjustable controllable. The illumination lamps 6 are preferably provided on the top of the four side walls of the housing 2. The outer cover 2 is a light-tight structure, which may be a light-tight structure layer or a light-tight coating. For example, the outer layer of the outer cover 2 is made of opaque material, and the inner layer of the outer cover 2 is a light supplement plate. The light filling board is used for reflecting light, and the illuminance of the inner cavity enclosed by the outer cover 2 is more uniform. The top of dustcoat 2 sets up camera mounting bracket 3, and camera mounting bracket 3 is used for placing the camera, realizes shooing from fixed position and height. The camera mounting bracket 3 can be directly arranged on the outer cover 2 and positioned on the top of the outer cover 2, for example, the outer cover 2 comprises a top plate, a shooting hole is arranged at the center of the top plate, the shooting hole is a counter bore, and the shooting hole forms the camera mounting bracket 3; alternatively, the housing 2 may have no top plate, and the top of the side plates of the housing 2 may be bracketed to form the camera mount 3. The camera may be supported by the base 1 in addition to the housing 2. Specifically, a support frame 4 is installed on the base 1, and a camera installation frame 3 is arranged on the support frame 4 right above an observation area, as shown in fig. 1. In this case, the housing 2 may be provided with a transparent ceiling or without a ceiling.
The observation area of base 1 sets up the length scale, and the length scale can directly be sculpture in base 1, also can be the scale pad pasting that pastes in the base. The base color of the base 1 and the color of the scale marks are preferably two colors which are easy to distinguish. The length scale can be one or more. When the length scales of the observation area are multiple, the length scales are preferably arranged in a radial mode and can be linear radiation or annular radiation, the radiation center is the original point, the zero point of the length scales is located at the original point, and the camera mounting frame 3 is arranged right above the original point. For example, the length scale on the upper surface of the base 1 is in a cross shape, and the zero point of the length scale is at the cross point.
The soil body fracture evolution testing device further comprises a camera and a control and data processing system 5, the camera is placed on the camera mounting frame 3, and the control and data processing system 5 is electrically connected with the camera. The control and data processing system 5 employs a computer system for controlling the camera and processing the captured images. The control and data processing system 5 and the camera may be connected by wire or wirelessly, both wired and wireless.
The process of observing the sample by the soil body fracture evolution observation device is as follows:
Step 1: the test parts were attached. The soil body crack evolution observation device is placed, the camera is placed on the camera mounting frame 3, and the camera is connected with the computer, wherein the computer is provided with a control and data processing system 5.
Step 2: the balance of the device is confirmed. Whether the device is balanced is judged through the leveling bubble 9, and if the base 1 is not level, the base 1 is leveled through the height adjusting support 8.
And step 3: the sample was placed. The sample is placed in the observation area of the base 1, preferably at the origin of the length scale. The sample can be directly placed in the observation area, or the sample is pasted and fixed in the observation area.
And 4, step 4: and (6) carrying out observation. And after the completion of the steps is confirmed, the illuminating lamp is turned on, the sample crack image is observed on the computer, and after various image parameters are adjusted, the camera is directly controlled by the computer to shoot.
And 5: an image of the specimen is captured. The image of the crack shot by the camera is directly displayed on a computer. The method is combined with the conventional common image processing technology to obtain fracture morphological characteristic parameters with higher reliability, such as fracture length, width, fracture rate, fractal dimension and the like, so as to represent the evolution process and rule of the soil body fracture.
Claims (10)
1. Soil body crack evolution observation device, including base (1), the upper surface of base (1) sets up smooth observation area, its characterized in that: the observation area is provided with length scales and is provided with an outer cover (2); the top of the outer cover (2) is provided with a camera mounting frame (3), or a support frame (4) is arranged on the base (1), and the camera mounting frame (3) is arranged right above the observation area on the support frame (4).
2. The soil mass fracture evolution observation device of claim 1, wherein: the device also comprises a camera and a control and data processing system (5), wherein the camera is arranged on the camera mounting frame (3), and the control and data processing system (5) is electrically connected with the camera.
3. The soil mass fracture evolution observation device of claim 1, wherein: an annular clamping groove or a limiting table is arranged around the observation area of the base (1), and the outer cover (2) is placed in the clamping groove or the limiting table.
4. The soil mass fracture evolution observation device of claim 2, wherein: the clamping groove is large at the top and small at the bottom, and the contact surface of the limiting table and the outer cover (2) is inclined.
5. An observation device of soil mass fracture evolution as claimed in any one of claims 1 to 4, wherein: the top of dustcoat (2) sets up with camera mounting bracket (3) relative position and shoots the hole, and the inboard of dustcoat (2) sets up light (6), and the skin of dustcoat (2) is light tight material, and the inlayer of dustcoat (2) is for mending the board.
6. The soil mass fracture evolution observation device of claim 5, wherein: a sample taking and placing opening (7) is formed in one side of the outer cover (2), and a light-tight cover plate is hinged to the sample taking and placing opening (7); the top of four lateral walls of the outer cover (2) is provided with illuminating lamps (6), and the illuminating lamps (6) are LED shadowless lamps.
7. The soil mass fracture evolution observation device according to any one of claims 1 to 4, wherein: the upper surface of the base (1) is provided with radial length scales, the zero point of the length scales is located at the original point, and the camera mounting frame (3) is arranged right above the original point.
8. The soil mass fracture evolution observation device of claim 7, wherein: the length scale on the upper surface of the base (1) is in a cross shape, and the zero point of the length scale is at the cross point.
9. The soil mass fracture evolution observation device according to any one of claims 1 to 4, wherein: the bottom of the base (1) is provided with at least three height adjusting supports (8), and the base (1) is also provided with leveling air bubbles (9).
10. The soil mass fracture evolution observation device of claim 7, wherein: the base (1) is rectangular, and four corners of the base (1) are respectively provided with a height adjusting support (8); or the base (1) is circular, and three height adjusting supports (8) are uniformly arranged around the base (1); the lower end of each height adjusting support (8) is respectively provided with a wheel (10), and the wheels (10) are universal wheels with brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557438.8U CN216646280U (en) | 2021-10-22 | 2021-10-22 | Soil body crack evolution observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557438.8U CN216646280U (en) | 2021-10-22 | 2021-10-22 | Soil body crack evolution observation device |
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| Publication Number | Publication Date |
|---|---|
| CN216646280U true CN216646280U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122557438.8U Expired - Fee Related CN216646280U (en) | 2021-10-22 | 2021-10-22 | Soil body crack evolution observation device |
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| Country | Link |
|---|---|
| CN (1) | CN216646280U (en) |
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2021
- 2021-10-22 CN CN202122557438.8U patent/CN216646280U/en not_active Expired - Fee Related
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