CN211292733U - Indoor simulation device for in-service light soil ultrasonic detection - Google Patents
Indoor simulation device for in-service light soil ultrasonic detection Download PDFInfo
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- CN211292733U CN211292733U CN201922017180.5U CN201922017180U CN211292733U CN 211292733 U CN211292733 U CN 211292733U CN 201922017180 U CN201922017180 U CN 201922017180U CN 211292733 U CN211292733 U CN 211292733U
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Abstract
The utility model discloses an indoor simulation device for in-service light soil ultrasonic detection, which comprises a freeze-thaw cycle box, a test box body, a water storage tank and a control console, wherein the test box is a square structure with an upper opening and composed of a bottom plate and four side plates, and the interior of the test box body is equally divided into four cavities for accommodating samples by using partition plates; the test box body is placed in the freeze-thaw circulation box, electric fans are arranged in the middle of the four side walls of the freeze-thaw circulation box respectively, a V-shaped single-layer louver air opening is installed on the outer portion of the electric fans, a control console is arranged on the right side of the freeze-thaw circulation box, a condensing compressor is installed inside the freeze-thaw circulation box and connected with condensing pipes in the side walls of the freeze-thaw circulation box, a water storage tank is arranged on the left side of the freeze-thaw circulation box, a water pump is installed on the bottom of the freeze-thaw circulation box, a heating device is arranged below the freeze-thaw circulation box, a box cover is arranged above the freeze-thaw. The utility model discloses shorten test cycle, degree of automation is high.
Description
Technical Field
The invention belongs to the technical field of bubble mixed light soil detection, and particularly relates to an indoor simulation device for in-service light soil ultrasonic detection.
Background
When the light foam soil is used in the construction process of a roadbed, engineering problems such as cracks and the like can be caused due to the influence of weather factors. At present, indoor tests of concrete in freeze-thaw cycles, dry-wet cycles and other aspects are carried out, and various related devices are complete and complete, but the tests simulate the influence on the concrete under a single climate condition, and the influence of two factors, namely rainfall and illumination, is rarely considered. In addition, the current test instrument is difficult to simulate the influence on the light foam soil in the construction process under the comprehensive weather environment.
In the current freeze-thaw cycle test, the design of the freeze-thaw test chamber is various, and the freeze-thaw test chamber has advantages and disadvantages. The main disadvantages are focused on the following aspects:
1. the equipment can cause faults in winter in the north and is difficult to use in a water refrigeration mode;
2. the refrigeration and heating are not uniform, so that the cracking degree of a certain part of the sample is larger, and the real working condition of the site cannot be simulated.
Disclosure of Invention
In order to solve the problems, the invention discloses an indoor simulation device for in-service light soil ultrasonic detection, which solves the problems that the existing indoor simulation of single environmental factor can not only separately perform one or more types of simulation, but also can comprehensively simulate the temperature, wind power, rainfall and illumination factors, and simultaneously solves the defect that the sample and the detection are separately performed; in addition, the ultrasonic detection method provided by the test also overcomes the defect of damage to the sample.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an indoor simulation device for in-service light soil ultrasonic detection comprises a freeze-thaw cycle box, a test box body, a water storage tank and a control console, wherein the test box is of a square structure with an upper opening and composed of a bottom plate and four side plates, and the interior of the test box body is uniformly divided into four chambers for containing samples by using partition plates; the test box body is placed in the freeze-thaw circulation box, electric fans are arranged in the middle of the four side walls of the freeze-thaw circulation box respectively, a V-shaped single-layer louver air opening is installed on the outer portion of the electric fans, a control console is arranged on the right side of the freeze-thaw circulation box, a condensing compressor is installed inside the freeze-thaw circulation box and connected with condensing pipes in the side walls of the freeze-thaw circulation box, a water storage tank is arranged on the left side of the freeze-thaw circulation box, a water pump is installed on the bottom of the freeze-thaw circulation box, a heating device is arranged below the freeze-thaw circulation box, a box cover is arranged above the freeze-thaw.
As an improvement of the invention, a cross-shaped thin-wall heating and cooling circulating device is added in the cavity, the circulating device is made of organic glass with the thickness of 2mm, and the length of an upper water inlet pipe is h1=
The middle cross-shaped thin-wall cavity is a cube and has a height h2 
Length of
The thickness of the chamber is d1=
The lower water outlet pipe is provided with threads and is connected with a screw hole at the bottom of the mold box, and the length of the lower water outlet pipe is h3=
H is the height of the sample; the chambers are communicated with each other, and top covers are arranged at the upper water inlet and the lower water outlet.
As an improvement of the invention, the nozzles are arranged in an equilateral triangle at the top of the box cover, the angle adjustable range is 0-30 degrees, the movable connection is replaceable, and the water quantity is controlled by a knob of a control console.
As an improvement of the invention, 1-6 fluorescent tubes are arranged on the inner wall of the box cover in parallel and equidistantly, and the brightness is controlled by a control console knob.
As an improvement of the invention, a plastic pipe is arranged in the test chamber body and inserted in the transverse direction and the vertical direction, and the plastic pipe extends out of the test chamber.
As a improvement of the invention, the ultrasonic detection tube comprises a transverse ultrasonic detection tube and a longitudinal ultrasonic detection tube.
As an improvement of the invention, the size of the inner cavity of the test box body is 100cm multiplied by 80cm, the size of the inner cavity of the freeze-thaw circulation box is 120cm multiplied by 100cm, and the thickness is 10 cm.
As an improvement of the invention, the left side panel and the right side panel of the test box body are respectively provided with a lifting ring.
An indoor simulation method for in-service light soil ultrasonic detection is characterized in that bubble mixed light soil is poured in a test box body, layered pouring can be performed in a simulated construction intermission period, and simulation of illumination, wind power, freeze thawing and rainfall is performed after demolding;
A. and (3) freeze-thaw cycle simulation:
pouring light soil, demolding, and placing in a test box body; when the freeze-thaw cycle simulation is carried out again, the T is continuously introduced1Cold water and T at DEG C2Hot water at a temperature of DEG C, auxiliaryThe bottom plate is heated, so that the process of internal and external up-down bidirectional freeze-thaw cycle can be realized, and the freeze-thaw rate is controlled by changing the water temperature;
when a sample is manufactured, a temperature sensor is embedded in the sample in advance to detect the change of the internal temperature of the test, so that the time of introducing water is controlled, and the water in the cold-hot circulation cavity is prevented from freezing in the process of introducing cold water for melting; the sensor placement position is a sample
At height, from the edge of the specimen
D is the transverse thickness of the sample; when the temperature is the same as the water temperature, stopping introducing water;
B. rainfall simulation:
rainfall simulation is carried out in a layered mode in a pouring intermission period, a water pump is arranged inside a left water storage tank, a water pressure gauge is arranged in front of the outside of the left water storage tank and used for detecting the condition of water supply pressure in rainfall, and the rainfall intensity is guaranteed to be stable; the water pump supplies water to be sprayed onto the sample from the nozzle;
the nozzle diameter and the actual rainfall condition are simulated according to the following corresponding relation:
1mm diameter orifice-light rain;
2mm diameter orifice-Zhongyu;
4mm diameter orifice-heavy rain;
C. illumination simulation
Starting a fluorescent tube on the inner wall of the freeze-thaw cycle box cover to perform illumination simulation,
when the illumination simulation is carried out, the relationship between the illumination intensity and the time in one day needs to be simulated according to the following formula:
D. wind power simulation:
the wind power of the electric fan is controlled by adjusting a knob on a control console, the conditions of no wind, weak wind, normal wind and strong wind are simulated respectively according to the wind power, the wind direction is changed by adjusting the vertical elevation angle and depression angle of the air outlet of the louver, the air outlet of each side is independently controlled by different switches, and the simulation of the actual wind direction is carried out.
The invention has the beneficial effects that:
the indoor simulation device for the in-service light soil ultrasonic detection can be used for simultaneously or separately carrying out freeze-thaw cycle simulation, rainfall simulation, illumination simulation and wind power simulation tests, comprehensively considering the factors of temperature, wind power, rainfall and illumination, simulating the influence on the cracking degree of the surface of the light bubble soil under different construction conditions, measuring the corresponding ultrasonic sound velocity, and substituting the ultrasonic sound velocity into a formula for calculation. The invention integrates indoor rapid simulation and ultrasonic detection, the detection method is nondestructive detection, can detect the cracking degree of the sample under different working conditions, shortens the test period, has high automation degree, and provides a basis for on-site ultrasonic detection and quality evaluation of the bubble mixed light soil subgrade. When a freeze-thaw cycle test is carried out, when the sample volume is large, the process of freeze-thaw cycle can be accelerated by a cross-shaped cold-hot circulating device in the sample; when illumination simulation is carried out, the design that the fluorescent lamps are parallelly laid on the top cover of the freeze-thaw circulation box is utilized, so that illumination is more uniform, and continuous adjustment of illumination intensity is realized; meanwhile, the process of freeze-thaw cycle is more controllable; during rainfall simulation, the ecological concept of saving and protecting the environment is reflected by the recycling of water.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of a test box according to the present invention.
Fig. 3 is a schematic structural view of the heating base plate according to the present invention.
Fig. 4 is a schematic view of the chamber structure according to the present invention.
Fig. 5 is a schematic view of the cross thin-wall cold and hot circulating device according to the present invention.
Fig. 6 is a schematic view of a louver outlet according to the present invention.
Fig. 7 is a graph of illumination time.
List of reference numerals:
the device comprises a top cover of a freeze-thaw cycle box, a nozzle, a fluorescent lamp tube, a wind power control knob, a rainfall control knob, a lighting control knob, a temperature display screen, a temperature adjusting knob, a console, a refrigeration compressor, a bottom plate, a test box body, a vertical ultrasonic detection tube, a freeze-thaw cycle box, a heating bottom plate, a water storage tank, a portable ring, a water pump, a water pressure gauge, a transverse ultrasonic detection tube, an oil temperature heating tube oil inlet, an oil temperature heating tube oil outlet, an oil inlet, a water outlet, an oil temperature heating tube, a fixed screw hole, a water inlet, an oil outlet, a water outlet, a cold-heat cycle cavity, a louver air port blade and a louver air port frame, wherein 1 is a top cover of the freeze-thaw cycle box, 2 is the nozzle, 3 is the fluorescent lamp tube, 4 is the wind power control knob, 5 is the rainfall control knob, 6 is the lighting control knob.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the indoor simulation device for in-service light soil ultrasonic detection is based on an indoor simulation system for in-service light soil ultrasonic detection, and comprises a freeze-thaw cycle simulation system, a rainfall simulation system, an illumination simulation system and a wind power simulation system.
The device comprises a test box body 12, the size of an inner cavity of the test box body is 100cm multiplied by 80cm, the test box body comprises a bottom plate 11 and four side plates, the side plates are tightly fixed on the bottom plate through a vertical fixing device, the four side plates are tightly and fixedly connected through a transverse fixing device, and the test box body 12 is uniformly divided into four chambers for containing samples through partition plates; the test box body 12 is placed in the freeze-thaw circulating box 14, and the left side panel and the right side panel are respectively provided with a lifting ring 17 for lifting the test box body; the size of the inner cavity of the freeze-thaw circulation box 14 is 120cm multiplied by 100cm, the thickness of the box body is 10cm, and a condensing device and a heating device are arranged in the freeze-thaw circulation box; the right side of the freeze-thaw circulation box is provided with a control console 9, a refrigeration compressor 10 is arranged in the freeze-thaw circulation box and used for refrigeration, and the freeze-thaw circulation box is connected with a condenser pipe on the side wall of the freeze-thaw circulation box and used for conveying cold air; the left side of the testing device is provided with a water storage tank 16 used for providing a water source during rainfall simulation, and a water pump 18 is arranged on the left side of the bottom of the tank and can provide rainfall with stable size for rainfall simulation.
For example, when the size of the prepared sample is 400 × 800, the relevant calculations and parameters are determined as follows:
the device simulation system for freeze-thaw cycle simulation comprises a freeze-thaw cycle box 14, a cross thin-wall heating and cooling cycle cavity and a heating bottom plate 15. The circulation chamber is made of plexiglass 2mm thick, taking into account that the rate of temperature change should not be too fast. The length of the upper water inlet pipe is 10cm, the height of the middle cross thin-wall cavity is 60cm, the length of the middle cross thin-wall cavity is 30cm, the thickness of the cavity is 1.5cm, the lower water outlet pipe is provided with threads and is connected with a screw hole at the bottom of the mold box, the length of the lower water outlet pipe is 12cm, and the thread part is 2 cm. The chambers are communicated with each other, and top covers are arranged at the upper water inlet and the lower water outlet. Only when the transverse thickness D of the sample is more than or equal to 20cm, a cross thin-wall heating and cooling circulation cavity is added in the cavity, so that the problem of uniform temperature field distribution of the in-service light soil porous medium is solved;
the heat preservation and insulation material of the freezing and thawing circulation box 14 mainly adopts polyurethane rigid foam plastic with the thickness of 10mm, and stainless steel with the thickness of 1mm is wrapped on the outer side to prevent the material from being corroded. Polyurethane foams have good properties. In particular, the material has the advantages of small density, high specific strength, low heat conductivity coefficient, water resistance and heat resistance, and is a high-quality heat insulation, heat preservation and cold insulation material. The adjacent polyester plates of the box body are spliced by adopting a built-in screw, and a foaming agent is filled in a gap in the middle. The heating bottom plate uses high-temperature constant-temperature water bath, the temperature control of the bottom plate depends on a heating pipeline laid in a bottom plate system, different circulating oil temperatures are controlled, the oil temperature adopts an electric heating mode, and the control of different temperatures of the bottom plate can be realized.
The rainfall simulation device simulation system comprises: the rainfall system (nozzle 2) consists of two parts of a self-circulation water supply system, the rainfall nozzles are arranged on a top cover of a box body and are arranged in an equilateral triangle, the angle adjustable range is 0-30 degrees, the side length is 112cm, the radius of the nozzle 2 is 5cm, the distance from a central point to the edge of the top cover is 20cm, and the nozzles with different diameter spray holes can be replaced.
The device simulation system for the illumination simulation adopts n fluorescent tubes 3 with power of 40W, each fluorescent tube is 60cm in length, arranged side by side at equal intervals, and 10cm in interval, and is controlled by a control console knob, the illumination intensity of the fluorescent tubes is continuously adjustable, and a control console display can display the illumination intensity in real time.
The simulated illumination area is 1m2The number n of lamps required for the case of 0lx (no light), low light (1000 lx), normal light (3000 xl), and high light (6000 lx) are determined by the following calculation.
From the relevant specifications it is known that: daylight lamp luminous flux of 40w is Φ =2400lm, according to the formula:
average illuminance (Eav) = total flux of light source (N × Φ) × maintenance coefficient (MF)/total area of test area (m) using Coefficient (CU) ×2）；
The utilization coefficient CU (indoor) is taken as 0.4, the maintenance coefficient MF is taken as 0.8, and therefore the number of the fluorescent tubes required by the maximum illumination simulation can be calculated as 7.8, and 8 fluorescent tubes are taken. The simulation of the above various illumination intensities can be realized under the condition that the illumination intensity is continuously adjustable.
The wind power simulation device is characterized in that electric fans are respectively arranged in the middle positions of four side walls of the freeze-thaw circulation box, a V-shaped single-layer louver air opening is arranged outside the freeze-thaw circulation box, the specification is 200mm multiplied by 800mm, and each electric fan is independently controlled by an independent rotary switch.
When the bubble mixed light soil is poured, four plastic pipes are vertically inserted into four corners of a mold (a test box body), the four plastic pipes are transversely inserted into the middle of the bottom of the mold, and the plastic pipes extend out of the mold by 10cm and are used for later-stage ultrasonic detection.
Pouring the bubble mixed light soil in a mould, performing layered pouring for simulating a construction intermission period, and simulating illumination, wind power, temperature (freeze thawing) and rainfall after demoulding. The simulation method comprises the following processes:
A. and (3) freeze-thaw cycle simulation:
before pouring the light soil, the device is erected in a mold, then pouring is carried out, and the device is placed in a test box body after demolding. During the simulation of freeze-thaw cycle, continuously introducing T1Cold water and T at DEG C2The hot water at the temperature of DEG C can accelerate the freezing and thawing cycle process, the bottom plate is heated in an auxiliary way, the process of bidirectional freezing and thawing cycle inside and outside can be realized, and the freezing and thawing rate is controlled by changing the water temperature.
In order to prevent the water in the cold and hot circulation cavity from freezing in the process of melting by introducing cold water, the time of introducing the water is controlled, so that a temperature sensor is embedded in the sample in advance when the sample is manufactured to detect the change of the internal temperature of the test. The sensor was placed at a height of 40cm from the bottom of the sample, 15cm from the edge, where the water was stopped when the temperature dropped (increased) to the same temperature as the cold (hot) water.
B. Rainfall simulation:
when rainfall simulation is carried out, the rainfall simulation is carried out layer by layer in the pouring interval period, and meanwhile, when rainwater enters the test box body, the rainwater can flow into the water storage tank again through the flow guide pipe at the top of the box body through the pressurizing device, so that the water is recycled. The inside water pump that is provided with of left side storage water tank, outside front are provided with the water pressure gauge for the rainfall intensity is stable is guaranteed in the condition of water supply pressure when detecting the rainfall.
The nozzle diameter and the actual rainfall condition are simulated according to the following corresponding relation:
1mm diameter orifice-little rain (weak rain)
2mm diameter orifice-middle rain (normal rainfall)
4mm diameter orifice-heavy rain (heavy rain)
The basic principle of rainfall simulation is as follows:
the kinetic energy of raindrops of the rainfall device is the best parameter for simulating the erosion of natural rainfall. When the rainfall height is unchanged and the raindrop size is uniform, namely the landing speed v of the raindrop terminal point is constant, the total kinetic energy of the rainfall on the test soil body in the unit area of the rain platform in the time t is as follows:
in the formula: e is the total kinetic energy of the rainfall on the rain platform in unit area in the time period t (J/(m)2S)); m is the total mass of rainfall per unit area in the time period t (kg/m)2) (ii) a v is the landing speed (m/s) of the raindrop terminal point; is the raindrop density (kg/m)3) (ii) a I is rainfall intensity (mm/h); t is the duration of rainfall(s); k is a constant. Therefore, in the artificial rainfall simulation test, the rainfall height is ensured to be unchanged, and the size and the distribution of raindrops are basically unchanged, so that the corresponding rainfall kinetic energy can be controlled only by adjusting the rainfall intensity of the device, namely the rainfall energy similarity can be expressed by the corresponding rainfall intensity.
The rainfall intensity is the rainfall in unit time, the rainfall intensity is calibrated by adopting a self-made simple rain gauge, the rainfall of each rain gauge is measured by using a measuring cylinder after each rainfall is finished, in order to prevent the spray holes from being blocked by impurities to influence the uniformity of rainfall, the water supply pressure is firstly adjusted to a larger value before calibration, the impurities accumulated in the pipe network are flushed out,
and then, respectively placing a rain gauge at each 1 sampling point to ensure that raindrops enter a measuring cylinder of the corresponding rain gauge through a funnel. And (3) timing, respectively measuring the rainfall Xi of the rainfall gauge on each sampling point under different opening degrees of the water control valve, then calculating the average rainfall X of each sampling point, wherein the average rainfall intensity of the rainfall device under different opening degrees of the water control knob is as follows:
in the formula:
the average rainfall intensity (mm/h) of each sampling point on the sample rain platform is obtained;
the measured average rainfall (mm) of each sampling point on the sample rain platform is obtained.
The self-circulation principle is that the submersible pump conveys water in the water storage tank to the water guide pipe through the water inlet pipe, then the water guide pipe guides the water into the rainfall nozzle, rainwater in the rainfall nozzle falls onto a sample below the rainfall nozzle, and then the rainwater returns to the reservoir again after being pressurized through the backflow guide pipe, and the circulation is carried out.
C. Illumination simulation
When the illumination simulation is carried out, the relationship between the illumination intensity and the time in one day needs to be simulated according to the following formula:
i.e. according to the curve shown in fig. 7.
From the relevant specifications it is known that: the luminous flux of the daylight lamp with the power of 40w is phi =2400lm, and the illumination area is 1m2The simulated illuminance is required to be 0lx (no light), low light (1000 lx), normal light (3000 xl) and high light (6000 lx). According to the formula:
average illuminance (Eav) = total flux of light source (N × Φ) × maintenance coefficient (MF)/total area of test area (m) using Coefficient (CU) ×2）；
The utilization coefficient CU (indoor) is taken as 0.4, the maintenance coefficient MF is taken as 0.8, and therefore the number of the fluorescent tubes required by the maximum illumination simulation can be calculated as 7.8, and 8 fluorescent tubes are taken. Under the condition that the illumination intensity is continuously adjustable, the simulation of various illuminations can be realized.
D. Wind power simulation:
the size of the adjusting switch can simulate the conditions of no wind, weak wind, normal wind and strong wind respectively, the wind direction is changed by adjusting the vertical elevation angle and depression angle of the air outlet of the shutter, and the air outlet of each side is independently controlled by different switches to simulate the actual wind direction. The wind power level is simulated according to the following wind speed corresponding relation:
no wind-v =0 m/s-1 gear
Weak wind-v =1.6-3.3 m/s-2 gear
Normal wind-v =5.5-7.9 m/s-3 gear
Strong wind-v =10.8-13.8 m/s-4 gear
After the simulation is performed, the test sample may be cut into 100 × 100 samples for testing, and an average value of the samples may be taken when performing the designated mapping.
The invention puts the test box body into the freeze-thaw cycle box, and is provided with a temperature control device, a wind control device, a light control device, a rainfall simulation device, an external ultrasonic detection device and the like. Pouring of the bubble mixed light soil is carried out in the device, the influence on the cracking degree of the surface of the light bubble soil under different construction conditions is simulated, and the corresponding ultrasonic sound velocity is measured and substituted into a formula for calculation. The invention integrates indoor rapid simulation and ultrasonic detection, the detection method is nondestructive detection, can detect the cracking degree of the sample under different working conditions, shortens the test period, has high automation degree, and provides a basis for on-site ultrasonic detection and quality evaluation of the bubble mixed light soil subgrade.
Claims (8)
1. The utility model provides an indoor analogue means of in-service light soil ultrasonic testing which characterized in that: the freezing and thawing cycle box comprises a freezing and thawing cycle box body, a test box body, a water storage tank and a control console, wherein the test box body is of a square structure which is formed by a bottom plate and four side plates and is provided with an opening at the upper part, and the interior of the test box body is uniformly divided into four chambers for containing samples by using partition plates; the test box body is placed in the freeze-thaw circulation box, electric fans are arranged in the middle of the four side walls of the freeze-thaw circulation box respectively, a V-shaped single-layer louver air opening is installed on the outer portion of the electric fans, a control console is arranged on the right side of the freeze-thaw circulation box, a condensing compressor is installed inside the freeze-thaw circulation box and connected with condensing pipes in the side walls of the freeze-thaw circulation box, a water storage tank is arranged on the left side of the freeze-thaw circulation box, a water pump is installed on the bottom of the freeze-thaw circulation box, a heating device is arranged below the freeze-thaw circulation box, a box cover is arranged above the freeze-thaw.
2. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the heating and cooling circulating device is characterized in that a cross-shaped thin-wall heating and cooling circulating device is added in the cavity, the circulating device is made of organic glass with the thickness of 2mm, and the length of an upper water inlet pipe is h1=
The middle cross-shaped thin-wall cavity is a cube and has a height h2 
Length of
The thickness of the chamber is d1=
The lower water outlet pipe is provided with threads and is connected with a screw hole at the bottom of the mold box, and the length of the lower water outlet pipe is h3=
H is the height of the sample; the chambers are communicated with each other, and top covers are arranged at the upper water inlet and the lower water outlet.
3. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the nozzles are arranged in an equilateral triangle at the top of the box cover, the angle adjustable range is 0-30 degrees, the movable connection is replaceable, and the water quantity is controlled by a control console knob.
4. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the inner wall of the box cover is provided with 1-6 fluorescent tubes which are arranged in parallel at equal intervals, and the brightness is controlled by a control console knob.
5. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the test box body is internally provided with a plastic pipe which is inserted into the test box body in the horizontal and vertical directions and extends out of the test box body.
6. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the ultrasonic detection tube comprises a transverse ultrasonic detection tube and a longitudinal ultrasonic detection tube.
7. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the size of the inner cavity of the test box body is 100cm multiplied by 80cm, the size of the inner cavity of the freeze-thaw circulation box is 120cm multiplied by 100cm, and the thickness is 10 cm.
8. The indoor simulation device for in-service light soil ultrasonic testing according to claim 1, wherein: the left side panel and the right side panel of the test box body are respectively provided with a lifting ring.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749653A (en) * | 2019-11-21 | 2020-02-04 | 中交第三航务工程局有限公司南京分公司 | Indoor simulation method and device for in-service light soil ultrasonic detection |
| CN112763695A (en) * | 2021-02-02 | 2021-05-07 | 中国科学院西北生态环境资源研究院 | Test device and test method for observing rock block freezing-thawing damage evolution process |
| CN112986124A (en) * | 2021-05-14 | 2021-06-18 | 湖南大学 | Real-time evaluation device and method for simulating deep environment erosion and material performance degradation |
| CN113740242A (en) * | 2021-09-13 | 2021-12-03 | 钢铁研究总院 | Environmental climate box for simulating real sea insolation |
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2019
- 2019-11-21 CN CN201922017180.5U patent/CN211292733U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749653A (en) * | 2019-11-21 | 2020-02-04 | 中交第三航务工程局有限公司南京分公司 | Indoor simulation method and device for in-service light soil ultrasonic detection |
| CN112763695A (en) * | 2021-02-02 | 2021-05-07 | 中国科学院西北生态环境资源研究院 | Test device and test method for observing rock block freezing-thawing damage evolution process |
| CN112763695B (en) * | 2021-02-02 | 2021-11-09 | 中国科学院西北生态环境资源研究院 | Test device and test method for observing rock block freezing-thawing damage evolution process |
| CN112986124A (en) * | 2021-05-14 | 2021-06-18 | 湖南大学 | Real-time evaluation device and method for simulating deep environment erosion and material performance degradation |
| CN112986124B (en) * | 2021-05-14 | 2021-08-03 | 湖南大学 | Real-time evaluation device and method for simulating deep environment erosion and material performance degradation |
| CN113740242A (en) * | 2021-09-13 | 2021-12-03 | 钢铁研究总院 | Environmental climate box for simulating real sea insolation |
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