CN106969992B - Test instrument for simulating solid medium degradation damage under flowing water effect - Google Patents
Test instrument for simulating solid medium degradation damage under flowing water effect Download PDFInfo
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- CN106969992B CN106969992B CN201710296520.5A CN201710296520A CN106969992B CN 106969992 B CN106969992 B CN 106969992B CN 201710296520 A CN201710296520 A CN 201710296520A CN 106969992 B CN106969992 B CN 106969992B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0284—Bulk material, e.g. powders
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- Environmental & Geological Engineering (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a test instrument for simulating solid medium degradation and damage under the action of flowing water, which aims to reflect the damage process and rule of a soil body under the action of flowing water erosion, improve the test efficiency, reduce the test cost and enhance the test controllability, and adopts the technical scheme that: the test sample chamber comprises a sample chamber with an opening at the top, the sample chamber comprises a circulation passage, the circulation passage is an annular passage, fluid is filled in the circulation passage, a sample fixing frame used for placing a sample is arranged in the circulation passage, a propeller used for controlling the flow rate of the fluid is further arranged in the circulation passage, the propeller is driven by a motor, a tension sensor used for detecting the quality change of the sample is arranged on the sample fixing frame and connected to a computer, and a flow rate sensor is arranged on the circulation passage and connected to the computer.
Description
Technical Field
The invention relates to the field of environmental engineering and soil mechanics, in particular to a test instrument for simulating degradation and damage of a solid medium under the action of flowing water.
Background
In actual engineering, the soil body is washed by groundwater or natural rainfall runoff, in addition, in bank slopes in rivers, the problem of soil body washing loss exists, after the soil body is saturated with water, the strength of the soil body is greatly reduced and reduced, on the other hand, the microstructure of the soil body is damaged, particles are disintegrated and fall off, and macroscopy becomes a large amount of water and soil loss or the cultivated land area is reduced, so that serious threats are brought to engineering safety and agricultural production. The existing test for detecting the water stability of the soil body is generally rough and is carried out in still water, and simpler technology and equipment for detecting the degradation and damage of the soil body under the condition of flowing water are not provided. Therefore, a test device with small floor area and strong test controllability needs to be invented, so that an instrument for effectively reflecting the deformation process and the deformation rule of a soil body or other solid-phase media under the condition of flowing water erosion can be used, and the investment of manpower, material resources and financial resources can be saved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the test instrument which has a simple structure and is flexible to operate, can effectively reflect the damage process and rule of a soil body under the action of flowing water erosion in real time, can improve the test efficiency, reduce the test cost and enhance the test controllability, and simulates the solid medium degradation damage under the action of flowing water.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the test sample chamber comprises a sample chamber with an opening at the top, wherein the sample chamber comprises a circulation passage, fluid is filled in the circulation passage, a sample fixing frame used for placing a sample is arranged in the circulation passage, a propeller used for controlling the flow rate of the fluid is further arranged in the circulation passage, the propeller is driven by a motor, a tension sensor used for detecting the quality change of the sample is arranged on the sample fixing frame, and the tension sensor is connected to a computer.
The circulation passage is an annular passage.
The circle center of the annular passage is a cavity, and the motor is arranged in the cavity.
A base is arranged in the cavity, a fixing support is arranged on the base, and the fixing support extends out of the sample chamber and is fixedly connected with the sample fixing frame.
The base is a solid balancing weight with a circular or rectangular section.
And a flow velocity sensor is arranged on the circulating passage and is connected to a computer.
The flow velocity sensor is arranged on the circulation path close to the sample fixing frame.
The motor is a speed regulating motor, and the control end of the motor is connected to the computer.
The sample chamber is cylindrical and is made of transparent toughened glass or organic glass.
The sample fixing frame comprises a fixing rod and a fixing plate arranged at the bottom of the fixing rod.
Compared with the prior art, the invention has the advantages that the sample chamber is provided with the circulating passage, the circulating passage is filled with fluid, the fluid is stirred by the propeller to flow at different flow rates, the samples fixed on the sample fixing frame are subjected to dynamic water erosion, the quality change of the samples is detected by the tension sensor, and the purpose of controlling the flow rate is achieved by controlling the rotating speed of the motor, so that the test of degradation and damage of the solid medium under the action of flowing water is simulated. In addition, the invention has the advantages of simple and understandable principle, convenient and safe operation and good use and popularization values.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the sample chamber;
the device comprises a motor 1, a sample chamber 2, a fixed support 3, a tension sensor 4, a data connecting line 5, a computer 6, a sample fixed frame 7, a circulating passage 8, a base 9, a cavity 10, a propeller 11 and a flow velocity sensor 12.
Detailed Description
The invention is further explained below with reference to specific examples and the drawing of the description.
Referring to fig. 1, the invention includes a sample chamber 2 with an opening at the top, the sample chamber 2 is cylindrical and is made of transparent toughened glass or organic glass, referring to fig. 2, the sample chamber 2 includes a circulation path 8, the circulation path 8 is an annular path, the circle center of the annular path is a cavity 10, the circulation path 8 is filled with fluid, a sample fixing frame 7 for placing a sample is arranged in the circulation path 8, and the sample fixing frame 7 includes a fixing rod and a fixing plate arranged at the bottom of the fixing rod. The circulating passage 8 is also internally provided with a propeller 11 for controlling the flow rate of fluid, the propeller 11 is driven by a motor 1, the motor 1 is arranged in a cavity 10, a base 9 is arranged in the cavity 10, the base is provided with a fixed support 3, the fixed support 3 extends out of the sample chamber 2 and is fixedly connected with a sample fixing frame 7, and the base 9 is a solid balancing weight with a circular or rectangular section. And a tension sensor 4 for detecting the quality change of the sample is arranged on the sample fixing frame 7, and the tension sensor 4 is connected to a computer 6 through a data connecting wire 5. The circulation path 8 is provided with a flow rate sensor 12, the flow rate sensor 12 is connected to the computer 6 through the data connection line 5, and the flow rate sensor 12 is arranged on the circulation path 8 close to the sample fixing frame 7. The motor 1 is a speed regulating motor, and the control end of the motor 1 is connected to the computer 6 through a data connecting wire 5.
The invention comprises a fixed bracket 3, a tension sensor 4, a sample fixed bracket 7, a base 9, a sample chamber 2, a propeller 11, a motor 1, a flow velocity sensor 12, a circulation passage 8 and a computer 6. The sample chamber 2 is cylindrical and made of transparent toughened glass or organic glass, so that the change condition of a sample can be observed in the test process; the fixed support 3 is made of steel materials, has better stability, does not deform under the condition of external force and temperature change, and the bottom of the fixed support is provided with the solid steel base 9 so as to keep the integral stability; the base 9 is arranged at the bottom of the fixed support 3, can be made into a round or rectangular shape, is not too large as a whole and is convenient to place, is made of solid steel, does not move in the test process, and ensures the stability of the whole test process; the tension sensor 4 is arranged between the fixed support 3 and the sample fixed support 7 and is used for monitoring real-time change data of the solid sample under the erosion of the flowing water; the sample fixing frame 7 is positioned on one side of the fixed support 3 and is provided with a tension sensor 4, and the sample fixing frame 7 extends into a test area of the circulating passage 8 and can be used for placing and fixing original or remolded soil samples in various shapes; the circulating passage 8 is an annular loop formed by connecting the head and the tail, has an open structure, and the circle center of the circulating passage 8 is hollow and is used for placing the fixed support 3 and the base 9 thereof; the propeller 11 is arranged at one side of the circulating passage 8, can rotate after the motor 1 is electrified, is used for exciting the fluid flow of the circulating passage 8 and can adjust the flow rate of the simulated running water in the circulating passage 8; the motor 1 is connected with the propeller 11 to provide power for the propeller, the motor 1 is a speed regulating motor, the control end is connected with a computer, and the rotating speed of the motor can be changed in real time through the control of the computer, so that the water flow speed in the circulating passage 8 can be changed to simulate different runoff conditions; the flow velocity sensor 12 is arranged close to the front of the sample fixing frame 7, is connected with the computer 6 and is used for measuring the actual flow velocity and transmitting data to the computer 6; the test area is an area where the circulation passage 8 is eroded, and the sample fixing frame 7 fixes the sample in the area so as to erode the flowing water; the computer is used for collecting data collected by the tension sensor 4 and the flow velocity sensor 12 and adjusting the motor 1 so as to control the rotating speed of the propeller 11.
The invention fills fluid in the circulating passage, utilizes the propeller to stir the fluid to enable the fluid to flow at different flow rates, carries out dynamic water erosion on the sample fixed on the sample fixing frame, utilizes the tension sensor to detect the quality change of the sample, and achieves the purpose of controlling the flow rate by controlling the rotating speed of the motor, thereby simulating the test of the degradation and the damage of the solid medium under the action of flowing water.
The invention simulates the test of solid medium degradation and destruction under the action of flowing water, can be conveniently and flexibly used in the process of the dynamic water erosion monitoring test of soil and other solid medium materials, can effectively improve the test efficiency, enhances the controllability of the test and achieves the aim of saving resources. In addition, the invention has the advantages of simple and understandable principle, convenient and safe operation and good use and popularization value.
Claims (8)
1. The utility model provides a test instrument that simulation flowing water effect is down solid medium degradation destruction, its characterized in that, including open-top's sample room (2), sample room (2) are including circulation route (8), and circulation route (8) are the annular passage, and circulation route (8) are filled with the fluid, are provided with sample mount (7) that are used for placing the sample in circulation route (8), still are provided with screw (11) that are used for controlling the fluid flow rate in circulation route (8), and screw (11) are through motor (1) drive, be provided with on sample mount (7) and be used for detecting tensile force sensor (4) of sample quality change, tensile force sensor (4) are connected to computer (6), be provided with flow rate sensor (12) on circulation route (8), flow rate sensor (12) are connected to computer (6).
2. A test instrument for simulating the degradation and destruction of solid media under the action of running water as claimed in claim 1, wherein the center of the annular passage is a cavity (10), and the motor (1) is arranged in the cavity (10).
3. A test instrument for simulating the deterioration and destruction of solid media under the action of flowing water as claimed in claim 2, wherein a base (9) is arranged in the cavity (10), and a fixing support (3) is arranged on the base, and the fixing support (3) extends out of the sample chamber (2) and is fixedly connected with the sample fixing frame (7).
4. A test instrument for simulating the deterioration and destruction of solid media under the action of flowing water as claimed in claim 3, wherein the base (9) is a solid counterweight with a circular or rectangular cross section.
5. A test instrument for simulating the deterioration and destruction of solid media under running water according to claim 1, wherein the flow rate sensor (12) is disposed on the circulation path (8) adjacent to the sample holder (7).
6. A test instrument for simulating the degradation and damage of solid media under the action of running water as claimed in claim 1, wherein the motor (1) is a speed-adjustable motor, and the control end of the motor (1) is connected to the computer (6).
7. The test instrument for simulating the degradation and destruction of solid media under the action of running water as claimed in claim 1, wherein the sample chamber (2) is cylindrical and made of transparent tempered glass or organic glass.
8. A test instrument for simulating the deterioration and destruction of solid media under running water as claimed in claim 1, wherein the sample holder (7) comprises a fixing rod and a fixing plate disposed at the bottom of the fixing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296520.5A CN106969992B (en) | 2017-04-28 | 2017-04-28 | Test instrument for simulating solid medium degradation damage under flowing water effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296520.5A CN106969992B (en) | 2017-04-28 | 2017-04-28 | Test instrument for simulating solid medium degradation damage under flowing water effect |
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| Publication Number | Publication Date |
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| CN106969992A CN106969992A (en) | 2017-07-21 |
| CN106969992B true CN106969992B (en) | 2023-03-14 |
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| CN201710296520.5A Active CN106969992B (en) | 2017-04-28 | 2017-04-28 | Test instrument for simulating solid medium degradation damage under flowing water effect |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870146A (en) * | 2017-12-05 | 2018-04-03 | 广西玉柴机器股份有限公司 | Exemplar inner chamber water flowing corrosion testing apparatus |
| CN112161889A (en) * | 2020-08-28 | 2021-01-01 | 鞍钢集团北京研究院有限公司 | Device and method for testing seawater and sea ice mixture abrasion resistance of steel |
| CN113884652B (en) * | 2021-08-19 | 2024-02-27 | 淮河水利水电开发有限公司 | Test device and test method for measuring soil body disintegration quantity and disintegration rate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626111C1 (en) * | 1996-06-28 | 1997-10-02 | Max Prof Dr Rer Nat Dr Setzer | Freezing and defrosting resistance testing method for sample slab |
| JPH11133009A (en) * | 1997-11-04 | 1999-05-21 | Yokohama Rika Kk | Method for testing durability of concrete sample, concrete sample container for ultrasonic measurement used in the method, and freezing-thawing test automatic measuring apparatus using the container |
| CN103063518A (en) * | 2012-12-31 | 2013-04-24 | 河海大学 | Experimental system for coupling of seepage and stress in rock tensile state |
| CN106226201A (en) * | 2016-09-14 | 2016-12-14 | 重庆交通大学 | A kind of device testing seepage failure rule under the conditions of varied angle and test method |
-
2017
- 2017-04-28 CN CN201710296520.5A patent/CN106969992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19626111C1 (en) * | 1996-06-28 | 1997-10-02 | Max Prof Dr Rer Nat Dr Setzer | Freezing and defrosting resistance testing method for sample slab |
| JPH11133009A (en) * | 1997-11-04 | 1999-05-21 | Yokohama Rika Kk | Method for testing durability of concrete sample, concrete sample container for ultrasonic measurement used in the method, and freezing-thawing test automatic measuring apparatus using the container |
| CN103063518A (en) * | 2012-12-31 | 2013-04-24 | 河海大学 | Experimental system for coupling of seepage and stress in rock tensile state |
| CN106226201A (en) * | 2016-09-14 | 2016-12-14 | 重庆交通大学 | A kind of device testing seepage failure rule under the conditions of varied angle and test method |
Non-Patent Citations (1)
| Title |
|---|
| 含裂隙类岩试样疲劳劣化试验研究;李润等;《地下空间与工程学报》;全文 * |
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Effective date of registration: 20191009 Address after: 710064 Xi'an Province, South Second Ring Road Applicant after: CHANG'AN University Address before: 719000 No. 2 culture North Road, Shaanxi, Yulin Applicant before: Yulin University |
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