CN219455822U - Seepage erosion test system combined with 3D printing particles - Google Patents
Seepage erosion test system combined with 3D printing particles Download PDFInfo
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- CN219455822U CN219455822U CN202320159348.XU CN202320159348U CN219455822U CN 219455822 U CN219455822 U CN 219455822U CN 202320159348 U CN202320159348 U CN 202320159348U CN 219455822 U CN219455822 U CN 219455822U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the technical field of geotechnical engineering seepage test, in particular to a seepage erosion test system combined with 3D printing particles, which comprises a test box module and a monitoring analysis module; the test box body module comprises a confining pressure control unit, a vertical pressure loading unit, a seepage water supply unit, a sand-water separation collecting unit and an information sending unit; the utility model controls the ambient and internal pressure of the sample through the confining pressure control unit and the vertical pressure loading unit, applies the water pressure of the seepage erosion to the sample through the seepage water supply unit, analyzes the strain information after the seepage erosion by utilizing the vertical pressure loading unit, and feeds back the seepage erosion result and analyzes the seepage erosion mechanism considering the shape effect by utilizing the monitoring analysis module. The seepage erosion test system can feed back confining pressure, vertical pressure, osmotic pressure, quality of seepage fine particles, quality of seepage water and strain information in a seepage process, and is convenient for observing seepage erosion results and analyzing a seepage erosion mechanism considering shape effects.
Description
Technical Field
The utility model relates to the technical field of geotechnical engineering seepage test, in particular to a seepage erosion test system combined with 3D printing particles.
Background
The structural damage caused by seepage erosion is a common and extremely harmful engineering damage type, and is mainly represented by migration of fine particles in a soil body due to drag force and pushing force generated by water flow acting on the soil body in the seepage direction, wherein the size and the direction of the drag force and the pushing force can influence the migration and the blocking process of the fine particles. The deposition of fine particles in the porous framework can cause clogging of filtration facilities such as the filtration layer, the permeate pavement, and the sewage filtration treatment system, resulting in reduced purification efficiency and even failure of the filtration facilities. In addition, soil particles in nature have complex geometric characteristics, and the geometric characteristics of different layers can influence macroscopic properties of the particle material, such as shear strength, shear expansion effect, blocking characteristics and the like. Therefore, quantitative analysis of the particle shape is an important precondition for researching the rule of influence of the shape on the physical and mechanical properties of the particle material.
At present, there are several technical achievements in terms of seepage erosion test devices, such as: patent number CN201710437843.1 describes a seepage stress coupled inner pipe surge permeation visualization model test device and test method; patent number CN201810056057.1 describes an indoor test method for simulating seepage erosion of fine particles inside deep aquifer sand; patent number CN201910399763.0 describes an indoor test device for determining the seepage erosion characteristics of a multi-layer soil sample under in-situ pressure; patent number CN202210321592.1 describes a multi-path moving water seepage erosion simulation test device that considers disturbance and initial conditions. However, the existing technology does not perform quantitative analysis on the particle shape, and lacks related test devices and methods.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide a seepage erosion test system combined with 3D printing particles, which aims to solve the problems that the prior art has not quantitatively analyzed the shape of the 3D printing particles and lacks related test devices.
The technical scheme of the utility model is as follows:
a seepage erosion testing system incorporating 3D printed particles, comprising:
the test box body module comprises a confining pressure control unit, a vertical pressure loading unit, a seepage water supply unit, a sand-water separation collection unit and an information sending unit; the confining pressure control unit comprises a confining pressure chamber and a sample supporting block arranged in the confining pressure chamber; the vertical pressure loading unit comprises a vertical monitor arranged on one side, away from the confining pressure chamber, of the confining pressure control unit, and a pressure plate connected with the vertical monitor and arranged in the confining pressure chamber; the seepage water supply unit comprises a water storage bin connected with the pressure plate through a water pipe, an upper seepage filter plate arranged on one side of the pressure plate, which is far away from the vertical monitor, and a lower seepage filter plate arranged on one side of the sample support block, which is close to the pressure plate; the upper infiltration plate and the lower infiltration plate are used for placing a sample; the sand-water separation and collection unit comprises a collection funnel arranged on one side of the sample support block, which is away from the pressure plate, a sand storage pool arranged on one side of the collection funnel, which is away from the sample support block, and a water collecting pipe connected with the collection funnel through a pipeline;
and the monitoring and analyzing module is electrically connected with the information sending unit and is used for feeding back the test information of seepage erosion and shearing of the sample.
The seepage erosion test system combined with the 3D printing particles further comprises a 3D printing module; the 3D printing module is used for printing 3D printing particle samples.
The seepage erosion test system combining 3D printing particles comprises a particle modeling unit based on a three-dimensional reconstruction technology and 3D printing equipment; the particle modeling unit based on the three-dimensional reconstruction technology is used for generating three-dimensional particle models in STL formats of different shapes.
The seepage erosion test system combining 3D printing particles comprises a seepage water supply unit, a water storage bin, a water delivery valve and a water storage bin, wherein the seepage water supply unit further comprises an air inlet pipe arranged in the water storage bin and a water delivery valve arranged in the water delivery pipe; the air inlet pipe is used for controlling the water pressure in the water storage bin, and the water delivery valve is used for controlling the water delivery pipe to transmit the pressure to one end, close to the pressure plate, of the sample.
The seepage erosion test system combining 3D printing particles is characterized in that a pressure sensor is arranged on one side of the sand storage pool, which is away from the collecting funnel.
The seepage erosion test system combined with the 3D printing particles comprises a base plate, a cover plate and a side plate which surrounds the base plate and the cover plate into the confining pressure chamber; the sample supporting block is connected with the side plate and the cover plate.
The seepage erosion test system combined with the 3D printing particles is characterized in that the pipeline is provided with a confining pressure valve; the confining pressure valve is used for controlling the back pressure so that the external confining pressure of the sample is stable.
The seepage erosion test system combined with the 3D printing particles is characterized in that a collecting valve is arranged at one end of the collecting funnel, which is close to the sand storage pool; the collecting valve is used for separating sand and water in the collecting funnel.
The seepage erosion test system combining 3D printing particles is characterized in that an electronic scale is arranged at the bottom of the water collecting pipe.
The seepage erosion test system combined with the 3D printing particles comprises a water collecting pipe, a first water collecting pipe and a second water collecting pipe; the height of the first water collecting pipe is larger than that of the second water collecting pipe, and the collecting funnel is connected with the first water collecting pipe through the pipeline; the first water collecting pipe and one end of the second water collecting pipe, which is away from the electronic scale, are mutually communicated.
The beneficial effects are that: the utility model provides a seepage erosion test system combined with 3D printing particles, which comprises a test box module and a monitoring analysis module; the test box body module comprises a confining pressure control unit, a vertical pressure loading unit, a seepage water supply unit, a sand-water separation collection unit and an information sending unit; the utility model controls the ambient and internal pressure of the sample through the confining pressure control unit and the vertical pressure loading unit, applies the water pressure of the seepage erosion to the sample through the seepage water supply unit, then analyzes the strain information of the seepage erosion by utilizing the vertical pressure loading unit, and feeds back the seepage erosion result and analyzes the seepage erosion mechanism considering the shape effect by utilizing the monitoring analysis module. The seepage erosion test system can feed back confining pressure, vertical pressure, osmotic pressure, quality of seepage fine particles, quality of seepage water and strain information in a seepage process, and is convenient for observing seepage erosion results and analyzing a seepage erosion mechanism considering shape effects; the seepage erosion test system is used for carrying out seepage erosion test research combined with 3D printing particles, can carry out quantitative analysis on the shapes of the particles, is a main precursor for researching the influence rule of the shapes on the physical and mechanical properties of the particle materials, has higher accuracy, and provides a basis for the seepage erosion theory considering the shape effect.
Drawings
FIG. 1 is a schematic diagram of a system for a percolation erosion test incorporating 3D printed particles according to the present utility model;
FIG. 2 is a schematic view of the structure of the test chamber module according to the present utility model;
FIG. 3 is a schematic diagram of an implementation flow of a seepage erosion testing system incorporating 3D printed particles according to the present utility model;
reference numerals illustrate: the test box module 10, the confining pressure control unit 11, the confining pressure chamber 111, the sample supporting block 112, the vertical pressure loading unit 12, the vertical monitor 121, the pressure plate 122, the seepage water supply unit 13, the water pipe 131, the water storage bin 132, the upper seepage plate 133, the lower seepage plate 134, the air inlet pipe 135, the water conveying valve 136, the sand-water separation collecting unit 14, the collecting hopper 141, the sand storage tank 142, the pipeline 143, the water collecting pipe 144, the first water collecting pipe 1441, the second water collecting pipe 1442, the confining pressure valve 145, the collecting valve 146, the electronic scale 147, the information sending unit 15 and the monitoring analysis module 20.
Detailed Description
The utility model provides a seepage erosion test system combined with 3D printing particles, which is used for making the purposes, technical schemes and effects of the utility model clearer and more definite, and is further described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description and claims, unless the context specifically defines the terms "a," "an," "the," and "the" include plural referents. If there is a description of "first", "second", etc. in an embodiment of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The structural damage caused by seepage erosion is a common and extremely harmful engineering damage type, and is mainly represented by migration of fine particles in a soil body due to drag force and pushing force generated by water flow acting on the soil body in the seepage direction, wherein the size and the direction of the drag force and the pushing force can influence the migration and the blocking process of the fine particles. The deposition of fine particles in the porous framework can cause clogging of filtration facilities such as the filtration layer, the permeate pavement, and the sewage filtration treatment system, resulting in reduced purification efficiency and even failure of the filtration facilities. In addition, soil particles in nature have complex geometric characteristics, and the geometric characteristics of different layers can influence macroscopic properties of the particle material, such as shear strength, shear expansion effect, blocking characteristics and the like. Therefore, quantitative analysis of the particle shape is an important precondition for researching the rule of influence of the shape on the physical and mechanical properties of the particle material.
Based on this, as shown in fig. 1-2, the present utility model provides a seepage erosion testing system incorporating 3D printed particles, comprising:
the test box module 10 comprises a confining pressure control unit 11, a vertical pressure loading unit 12, a seepage water supply unit 13, a sand-water separation collection unit 14 and an information sending unit 15; the confining pressure control unit 11 comprises a confining pressure chamber 111 and a sample supporting block 112 arranged in the confining pressure chamber 111; the vertical pressure loading unit 12 comprises a vertical monitor 121 arranged at one side of the confining pressure control unit 11 away from the confining pressure chamber 111, and a pressure plate 122 connected with the vertical monitor 121 and arranged in the confining pressure chamber 111; the seepage water supply unit 13 comprises a water storage bin 132 connected with the pressure plate 122 through a water pipe 131, an upper seepage plate 133 arranged on one side of the pressure plate 122 away from the vertical monitor 121, and a lower seepage plate 134 arranged on one side of the sample support block 112 close to the pressure plate 122; a sample is placed between the upper percolating filter plate 133 and the lower percolating plate 134; the sand-water separation and collection unit 14 comprises a collection funnel 141 arranged on one side of the sample support block 112, which is away from the pressure plate 122, a sand storage pool 142 arranged on one side of the collection funnel 141, which is away from the sample support block 112, and a water collection pipe 144 connected with the collection funnel 141 through a pipeline 143;
the monitoring and analyzing module 20 is electrically connected with the information sending unit 15 and is used for feeding back the test information of the seepage erosion and shearing of the sample.
In this embodiment, the air pressure in the confining pressure chamber 111 is adjusted to control the water in the water storage bin 132 to apply confining pressure to the sample of the printed particle collection, and control the back pressure to achieve the effect of stabilizing the external confining pressure, the pressure plate 122 is used to apply vertical pressure to the sample of the printed particle collection, and the vertical monitor 121 is used to receive the displacement information of the sample to reach the required stress state; the seepage water supply unit 13 is used for applying seepage erosion control water flow to the compacted printed particle set sample, the water pipe 131 is used for transmitting pressure above the printed particle set sample, the upper seepage filter plate 133 and the lower seepage filter plate 134 allow water and fine particles to move so as to limit seepage of coarse particles, sand and water which permeate into the collecting hopper 141 in the seepage process respectively enter the sand storage pool 142 and the water collecting pipe 144, finally the information sending unit is used for fully reflecting seepage information to the monitoring analysis module 20, and the monitoring analysis module 20 is used for feeding back confining pressure, vertical pressure, seepage fine particle mass, seepage water mass and strain information in the seepage erosion process, so that the seepage erosion result and the seepage erosion mechanism taking shape effect into consideration are convenient to observe. The seepage erosion test system combining 3D printing particles has strong operability, simple equipment and simple manufacture, and initially reveals a seepage erosion mechanism considering shape effect, thereby providing a basis for subsequent test research and being more relevant to engineering practice.
Specifically, in the test box module 10, the confining pressure control unit 11 is used for controlling the horizontal pressure for the 3D printing particle set sample; the vertical pressure loading unit 12 is used for controlling the internal pore pressure of the 3D printing particle set sample so that the vertical stress of the sample meets the set requirement; the seepage water supply unit 13 applies seepage erosion control water pressure to the 3D printing particle set sample, and then the fine particles and overflows after seepage erosion are collected through the sand-water separation collection unit 14; the vertical pressure loading unit 12 applies vertical pressure to the 3D printing particle set sample which completes the seepage erosion until the 3D printing particle set sample is sheared and destroyed, and is used for analyzing the deformability of the sample after the seepage erosion; the information transmitting unit 15 transmits test information to the monitoring and analyzing module 20, and the monitoring and analyzing module 20 feeds back confining pressure, vertical pressure, osmotic pressure, quality of exuded fine particles, quality of exuded water and strain information in the process of the exudation erosion considering the shape effect, so that the result of the exudation erosion is convenient to observe and the mechanism of the exudation erosion considering the shape effect is convenient to analyze.
In some embodiments, the seepage erosion testing system incorporating 3D printed particles further comprises a 3D printing module; the 3D printing module is used for printing 3D printing particle samples.
Specifically, the particle shape of the 3D printing particle sample can be arbitrary, the 3D printing particle sample can be mainly constructed by combining a CT scanning technology with a digital image analysis and three-dimensional reconstruction technology and directly constructed by a numerical algorithm, a particle set with a given shape is materialized by 3D printing equipment according to geotechnical test specifications and test requirements, the size of the level proportioning is determined according to test requirements, and the test material of the printing particle set is based on the printing material.
In some embodiments, the 3D printing module includes a 3D printing device and a particle modeling unit based on a three-dimensional reconstruction technique; the particle modeling unit based on the three-dimensional reconstruction technology is used for generating three-dimensional particle models in STL formats with different shapes; and according to the three-dimensional particle model, materializing a particle set with a given shape by using the 3D printing equipment. The 3D printing module can realize the materialization of particles with given shapes and the reproduction of the seepage erosion process, and is beneficial to the research of relevant mechanisms of the seepage erosion under the influence of the particle shape effect.
In some embodiments, the seepage water supply unit 13 further includes an air inlet pipe 135 disposed on the water storage bin 132, and a water delivery valve 136 disposed on the water delivery pipe 131; the air inlet pipe 135 is used for controlling the water pressure in the water storage bin 132, and the water delivery valve 136 is used for controlling the water delivery pipe 131 to transmit the pressure to one end of the sample close to the pressure plate 122. The water pressure in the water storage bin 132 is controlled by the air inlet pipe 135, the water delivery valve 136 is controlled to transmit pressure to the upper part of the 3D printing particle collection sample through the water delivery pipe 131, and the upper infiltration filter plate 133 and the lower infiltration filter plate 134 only operate the migration of water and fine particles to limit the seepage of coarse particles.
In some embodiments, a pressure sensor is provided on a side of the sand reservoir 142 facing away from the collection funnel 141. By providing a pressure sensor on the side of the sand reservoir 142 facing away from the collection hopper 141, the quality of the exuded fine particles can be measured in real time and then transmitted to the monitoring and analyzing module 20 through the information transmitting unit 15.
In some embodiments, the confining pressure chamber 111 includes a bottom plate, a cover plate, and side plates enclosing the confining pressure chamber 111 with the bottom plate and the cover plate; the sample support block 112 is connected to the side plate and the cover plate.
Specifically, the sample supporting block 112 is in an "L" shape, one end of the sample supporting block 112, which is close to the lower percolating plate 134, is used to abut against the lower percolating plate 134, so as to form a shape that the edge of the lower percolating plate 134 is supported by the sample supporting block, and the middle part of the sample supporting block is hollow, so that fine particles and water can permeate through the lower percolating plate 134 and then directly fall into the collecting funnel 141, and then sand-water separation is performed.
In some preferred embodiments, the sample support block 112 comprises at least two blocks, which serve as a support counterbalance; one end of the sample supporting block 112 is fixed to the side plate, and the sample supporting block is connected and fixed to the cover plate through a connecting rod.
In some embodiments, the conduit 143 is provided with a confining pressure valve 145; the confining pressure valve 145 is used to control the back pressure so that the external confining pressure of the sample stabilizes. The confining pressure is applied to the sample of the printed particle collection by adjusting the water in the air pressure control bin in the confining pressure chamber 111, and the back pressure is controlled by controlling the confining pressure valve 145 to achieve the effect of stabilizing the external confining pressure.
In some embodiments, the pressure plate 122 applies vertical pressure to the 3D printed particle set sample, and the vertical pressure monitor 121 is used to receive sample displacement information to achieve a desired stress state.
In some embodiments, a collection valve 146 is provided at an end of the collection funnel 141 adjacent to the sand reservoir 142; the collection valve 146 is used to separate sand and water in the collection hopper 141.
In some embodiments, an electronic scale 147 is disposed at the bottom of the water collecting pipe 144, and the quality of the seepage water is measured in real time by using the electronic scale and then transmitted to the monitoring and analyzing module 20 through the information transmitting unit 15.
Specifically, the water collecting pipe 144 is disposed above the electronic scale 147, and is used for measuring the weight change of the water collecting pipe 144 in real time, so as to obtain the quality of the seepage water.
In some embodiments, the water collection pipe 144 includes a first water collection pipe 1441 and a second water collection pipe 1442; the height of the first water collecting pipe 1441 is greater than that of the second water collecting pipe 1442, and the collecting funnel 141 is connected with the first water collecting pipe 1441 through the pipe 143; the first water collecting pipe 1441 and the second water collecting pipe 1442 are communicated with each other at an end facing away from the electronic scale 147.
Further, in order to more clearly describe the working principle of the seepage erosion testing system combined with 3D printing particles, the present embodiment is additionally described in terms of testing steps, as shown in fig. 3, and includes the following steps:
step S100: a 3D printed particle set sample is generated.
The particle shape for the seepage erosion sample can be arbitrary, and the particle can be mainly constructed by combining a CT scanning technology with a digital image analysis and three-dimensional reconstruction technology and directly constructed by a numerical algorithm, and the material of the sample of the printed particle set is based on the printing material according to geotechnical test specifications and test requirements.
Specifically, the 3D printing module is utilized to materialize a particle set with a given shape through 3D printing equipment according to geotechnical test specifications and test requirements, the size of the level proportioning is determined according to the test requirements, a three-dimensional model for printing can be constructed through combining a CT scanning technology with a digital image analysis and three-dimensional reconstruction technology, and also can be constructed through a numerical algorithm, and the particle shape under consideration is based on various items of microscopic information.
Step S200: and controlling the 3D printing particle set sample to reach a preset stress state.
The confining pressure is applied to the printed particle set sample by adjusting the water in the air pressure control bin in the confining pressure chamber 111, the back pressure is controlled by the confining pressure valve 145 so that the printed particle set sample achieves the effect of stabilizing the external confining pressure, the vertical pressure is applied to the printed particle set sample by the pressure plate 122, and the vertical monitor 121 is used for receiving the sample displacement information so as to achieve the required stress state.
Step S300: and (3) seepage erosion test.
The seepage water supply unit 13 is used for applying seepage erosion control water flow to the compacted printing particle collection sample, the air inlet pipe 135 is used for controlling water pressure in the water storage bin, then the water delivery valve 136 is controlled to transmit pressure above the printing particle collection sample through the water delivery pipe 131, the upper seepage filter plate 133 and the lower seepage filter plate 134 allow water and fine particles to move so as to limit coarse particles to seep out, the collecting valve 146 is opened so that sand seeped into the collecting funnel 141 in the seepage process can enter the sand storage pool 142 and the water collecting pipe 144 respectively, and the sand storage pool 142 and the water collecting pipe 144 are respectively provided with a pressure sensor and an electronic scale, so that data of the pressure sensor and the electronic scale are reflected to the monitoring analysis module 20 in real time by the information sending unit 15.
Step S400: shear test.
Vertical pressure is applied to the print particle set sample subjected to seepage corrosion by the vertical pressure loading unit 12 until the print particle set sample is sheared and damaged.
Step S500: and (5) result processing and analysis.
The monitoring and analyzing module 20 is utilized to feed back confining pressure, vertical pressure, osmotic pressure, quality of exuded fine particles, quality of exuded water and strain information in the process of seepage erosion, so that the seepage erosion result is convenient to observe and the seepage erosion mechanism considering the shape effect is analyzed.
Further, the utility model has the following main beneficial effects:
1. the utility model can realize the materialization of the particles with a given shape and the reproduction of the seepage erosion process, and is beneficial to the research of relevant mechanisms of the seepage erosion under the influence of the particle shape effect.
2. The seepage erosion test system can feed back confining pressure, vertical pressure, osmotic pressure, quality of seepage fine particles, quality of seepage water and strain information in the seepage erosion process, and is convenient for observing seepage erosion results and analyzing and considering a seepage erosion mechanism of shape effect.
3. The seepage erosion test research combined with the 3D printing particles is carried out by adopting the test device, the quantitative analysis can be carried out on the particle shape, the method is an important premise for researching the influence rule of the shape on the physical and mechanical properties of the particle material, the accuracy is higher, and a foundation is provided for the seepage erosion theory considering the shape effect.
In summary, the seepage erosion test system combined with the 3D printing particles provided by the utility model comprises a test box module and a monitoring analysis module; the test box body module comprises a confining pressure control unit, a vertical pressure loading unit, a seepage water supply unit, a sand-water separation collection unit and an information sending unit; the utility model controls the ambient and internal pressure of the sample through the confining pressure control unit and the vertical pressure loading unit, applies the water pressure of the seepage erosion to the sample through the seepage water supply unit, then analyzes the strain information of the seepage erosion by utilizing the vertical pressure loading unit, and feeds back the seepage erosion result and analyzes the seepage erosion mechanism considering the shape effect by utilizing the monitoring analysis module. The seepage erosion test system can feed back confining pressure, vertical pressure, osmotic pressure, quality of seepage fine particles, quality of seepage water and strain information in a seepage process, and is convenient for observing seepage erosion results and analyzing a seepage erosion mechanism considering shape effects; the seepage erosion test system is used for carrying out seepage erosion test research combined with 3D printing particles, can carry out quantitative analysis on the shapes of the particles, is a main precursor for researching the influence rule of the shapes on the physical and mechanical properties of the particle materials, has higher accuracy, and provides a basis for the seepage erosion theory considering the shape effect. The utility model has strong operability, simple equipment and simple manufacture, and preliminarily reveals the seepage erosion mechanism considering the shape effect, thereby providing a basis for the subsequent experimental study and being more suitable for engineering practice.
It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. A seepage erosion testing system incorporating 3D printed particles, comprising:
the test box body module comprises a confining pressure control unit, a vertical pressure loading unit, a seepage water supply unit, a sand-water separation collection unit and an information sending unit; the confining pressure control unit comprises a confining pressure chamber and a sample supporting block arranged in the confining pressure chamber; the vertical pressure loading unit comprises a vertical monitor arranged on one side, away from the confining pressure chamber, of the confining pressure control unit, and a pressure plate connected with the vertical monitor and arranged in the confining pressure chamber; the seepage water supply unit comprises a water storage bin connected with the pressure plate through a water pipe, an upper seepage filter plate arranged on one side of the pressure plate, which is far away from the vertical monitor, and a lower seepage filter plate arranged on one side of the sample support block, which is close to the pressure plate; the upper infiltration plate and the lower infiltration plate are used for placing a sample; the sand-water separation and collection unit comprises a collection funnel arranged on one side of the sample support block, which is away from the pressure plate, a sand storage pool arranged on one side of the collection funnel, which is away from the sample support block, and a water collecting pipe connected with the collection funnel through a pipeline;
and the monitoring and analyzing module is electrically connected with the information sending unit and is used for feeding back the test information of seepage erosion and shearing of the sample.
2. The 3D printed particle bonded bleed erosion test system of claim 1, further comprising a 3D printing module; the 3D printing module is used for printing 3D printing particle samples.
3. The system for a percolation erosion test incorporating 3D printed particles of claim 2, wherein the 3D printing module comprises a particle modeling unit based on three-dimensional reconstruction technique and a 3D printing device; the particle modeling unit based on the three-dimensional reconstruction technology is used for generating three-dimensional particle models in STL formats of different shapes.
4. The seepage corrosion test system combined with 3D printing particles according to claim 1, wherein the seepage water supply unit further comprises an air inlet pipe arranged in the water storage bin and a water delivery valve arranged in the water delivery pipe; the air inlet pipe is used for controlling the water pressure in the water storage bin, and the water delivery valve is used for controlling the water delivery pipe to transmit the pressure to one end, close to the pressure plate, of the sample.
5. The seepage erosion testing system combined with 3D printed particles according to claim 1, wherein a pressure sensor is arranged on the side of the sand reservoir facing away from the collection funnel.
6. The system of claim 1, wherein the confining pressure chamber comprises a bottom plate, a cover plate, and side plates surrounding the confining pressure chamber with the bottom plate and the cover plate; the sample supporting block is connected with the side plate and the cover plate.
7. The seepage erosion testing system combined with 3D printed particles according to claim 1, wherein the pipeline is provided with a confining pressure valve; the confining pressure valve is used for controlling the back pressure so that the external confining pressure of the sample is stable.
8. The seepage erosion testing system combined with 3D printing particles according to claim 1, wherein a collecting valve is arranged at one end of the collecting funnel close to the sand storage pool; the collecting valve is used for separating sand and water in the collecting funnel.
9. The seepage erosion testing system combined with 3D printing particles according to claim 1, wherein an electronic scale is arranged at the bottom of the water collecting pipe.
10. The system of claim 9, wherein the header comprises a first header and a second header; the height of the first water collecting pipe is larger than that of the second water collecting pipe, and the collecting funnel is connected with the first water collecting pipe through the pipeline; the first water collecting pipe and one end of the second water collecting pipe, which is away from the electronic scale, are mutually communicated.
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| CN202320159348.XU CN219455822U (en) | 2023-01-17 | 2023-01-17 | Seepage erosion test system combined with 3D printing particles |
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| CN202320159348.XU CN219455822U (en) | 2023-01-17 | 2023-01-17 | Seepage erosion test system combined with 3D printing particles |
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2023
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