CN212904235U - Geomembrane tensile test device - Google Patents
Geomembrane tensile test device Download PDFInfo
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- CN212904235U CN212904235U CN202021348673.3U CN202021348673U CN212904235U CN 212904235 U CN212904235 U CN 212904235U CN 202021348673 U CN202021348673 U CN 202021348673U CN 212904235 U CN212904235 U CN 212904235U
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- 238000009864 tensile test Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 69
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 16
- 230000008859 change Effects 0.000 abstract description 7
- 239000000243 solution Substances 0.000 description 23
- 235000003891 ferrous sulphate Nutrition 0.000 description 11
- 239000011790 ferrous sulphate Substances 0.000 description 11
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 11
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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Abstract
The utility model discloses a geomembrane tensile test device, which comprises a universal testing machine and a medium circulation box, wherein a material cover is arranged in the universal testing machine, the material cover is a box body sealing structure, the medium circulation box is a double-layer heat-preservation closed structure, and the material cover is communicated with the medium circulation box through two heat-preservation connecting pipes; the utility model utilizes the medium cold and hot circulation flow to control the temperature circulation change of the geomembrane material in different chemical environments; the temperature is controlled by a heating resistor and liquid nitrogen, and the circulating flow of a medium is realized by a pump by utilizing pressure difference; the utility model discloses can realize the temperature cycle under the different chemical environment, more convenient control material environment effectively.
Description
Technical Field
The utility model belongs to the technical field of geotechnical material capability test equipment, concretely relates to can carry out geomembrane tensile test's device under the temperature cycle effect of different chemical environment.
Background
The geomembrane has the advantages of good seepage-proofing performance, strong adaptive deformability, low construction cost, high construction speed and the like, and is widely applied to seepage-proofing projects such as dams, storage trays, channels, refuse landfills and the like. Factors such as temperature, oxygen, humidity, pH value and metal ion concentration can all influence the mechanical properties of the geomembrane.
The climate environment in western regions of China is severe, such as regions of Sinkiang, inner Mongolia and the like, the climate environment is dry and rain-less, the temperature difference between day and night is large, the seasonal temperature difference is large, the summer temperature is up to 48 ℃, the winter temperature is as low as-30 ℃, and the ultimate temperature difference is over 70 ℃. The geomembrane belongs to a temperature sensitive material, and the difference of the mechanical properties of the geomembrane in the environment with large temperature difference of the cold and hot circulation is obvious.
The effects of chemical action on geomembranes are particularly common in landfill seepage control engineering. Research shows that transition metals (Co, Mn, Cu, Al, Fe and the like) in the leachate react with antioxidants in the geomembrane to promote degradation. Experiments show that chemical substances such as the surfactant can reduce the surface tension of water, accelerate the migration and diffusion of the antioxidant and accelerate the degradation of the geomembrane. Geomembranes have obvious differences in mechanical properties under various chemical actions.
Application number 201911041051.8, utility model name sealed gluey high temperature tensile test device's patent application, this kind of high temperature tensile test device rely on the heating plate in the tensile temperature control box to carry out temperature control, but because the heating plate directly heats in the environment at geomembrane sample place, lead to near regional temperature of heating plate higher for temperature control to the geomembrane sample is inhomogeneous. Because the heating sheet directly heats the air in the stretching temperature control box, the heat conducting medium of the sample can only be air and can not be changed into liquid or other gases. Since the heat-conducting medium cannot be changed, the chemical environment of the sample in the cold-hot circulation process cannot be changed, and the influence of mediums containing different ions with different concentrations, such as acid solution, alkaline solution, leachate containing transition metal, acid gas, alkaline gas and the like, on the tensile property of the geomembrane under the cold-hot circulation condition cannot be considered.
SUMMERY OF THE UTILITY MODEL
An above-mentioned not enough to prior art exists, the utility model aims to provide an enable geomembrane sample thermally equivalent, can be with multiple gas or liquid heat conduction, can convenient and fast ground control material locate chemical environment and enable geomembrane sample carry out temperature cycle effect in different chemical environment under tensile test's one kind can carry out geomembrane tensile test's device under different chemical environment's temperature cycle effect.
The utility model discloses technical scheme as follows:
a geomembrane tensile test device comprises a universal testing machine and a medium circulation box, wherein a material cover is arranged in the universal testing machine, the material cover is of a box body structure, one side of the material cover is rotatably connected with a box door, coaxial through holes are formed in the top and the bottom of the material cover, tensile rods positioned at the top and the bottom of the material cover penetrate through the through holes and extend into the material cover, the extending ends of the two tensile rods are connected with universal testing machine clamps, and a geomembrane sample is connected between the two clamps; a tension sensor is arranged on the stretching rod positioned at the top of the material cover, and a temperature sensor is arranged on the outer side wall of the material cover;
the medium circulation box is of a double-layer heat-preservation closed structure, a sealing cover is further arranged at the upper part of the medium circulation box, a heating resistor is arranged in the medium circulation box, and a temperature controller is arranged on the outer side wall of the medium circulation box; an input valve is arranged on the side wall of the medium circulation box and connected with an external liquid nitrogen system;
the material cover is communicated with the medium circulating box through two heat-preservation connecting pipes;
the tension sensor and the temperature sensor are electrically connected with the data acquisition unit, and the data acquisition unit, the temperature controller and the universal test machine control system are electrically connected with the computer.
Furthermore, in order to measure the temperature of the medium in the cover body more accurately, the stretching rod is connected with the material cover in a sealing mode, and after the box door is closed, the material cover is sealed to be impermeable to water/air.
Preferably, a cover outlet valve and a cover inlet valve are respectively arranged on two side walls of the material cover;
the medium circulation box is divided into a left box chamber and a right box chamber by a partition plate, the two box chambers are communicated with each other, and a pump is arranged between the two box chambers; an inlet valve is arranged on the side wall of the bottom of the left box chamber, an outlet valve is arranged on the side wall of the bottom of the right box chamber, an input valve is arranged on the side wall of the top of the right box chamber, a heat-preservation connecting pipe is connected between the outlet valve and a cover inlet valve of the material cover, and a heat-preservation connecting pipe is connected between the inlet valve and a cover outlet valve of the material cover.
Preferably, in order to conveniently replace the clamp, the universal testing machine clamp can be detached and is connected with the stretching rod of the universal testing machine through a screw rod.
Preferably, the pump between the two chambers of the medium circulation tank is capable of pumping gas or liquid, and a peristaltic pump may be used.
The utility model discloses utilize the circulation change of medium cold and hot circulation flow control geomembrane temperature in different chemical environment, the medium can be air, water, acid solution, alkaline solution, contain transition metal's filtration liquid, acid gas, alkaline gas etc. and medium flow path is: the medium circulation tank right tank chamber → the cover intake valve → the right side heat insulating connection pipe → the inlet valve → the material cover → the outlet valve → the left side heat insulating connection pipe → the cover outlet valve → the medium circulation tank left tank chamber → the pump → the medium circulation tank right tank chamber.
Compared with the prior art, the utility model, following technological effect has:
the utility model utilizes the circulation flow of the medium cold and hot to control the temperature circulation change of the geomembrane in different chemical environments, and the medium can be gas or liquid; the temperature control is realized in the medium circulating box by the heating resistor and the liquid nitrogen, and the circulating flow of the medium between the material cover and the medium circulating box is realized by the pump by utilizing the pressure difference between the left box chamber and the right box chamber, so that the medium can flow through the sample for multiple times at different temperatures, and the temperature circulation effect is performed on the sample under the medium environment; the utility model discloses can realize the temperature cycle under the different chemical environment, more conveniently control the material environment effectively, the temperature of controlling the material more evenly makes the temperature field in the material cover more even among the heating process.
Drawings
In order to more clearly illustrate the embodiments and technical solutions of the present invention, the drawings used in the description of the embodiments and technical solutions will be briefly described below.
Fig. 1 is a front view structure of the present invention;
fig. 2 is a top view structure of the present invention;
FIG. 3 is a cross-sectional view of the material box;
FIG. 4 is a front view configuration of the material box;
FIG. 5 is a cross-sectional view of the media circulation box;
fig. 6 is a schematic view of the connecting portion of the stretching rod.
Fig. 7 is a circuit diagram of an automatic control of the cooling-heating cycle system.
Description of reference numerals: 1. the device comprises a universal testing machine, 2, a material cover, 3, a medium circulation box, 4, a heat-preservation connecting pipe, 5, a data acquisition device, 6, a computer, 11, a stretching rod, 12, a universal testing machine clamp, 13 a tension sensor, 21, a sensor contact, 22, a temperature sensor, 23, a sample inlet door, 24, an inlet valve, 25 an outlet valve, 31, a left box chamber, 32, a right box chamber, 33, a pump, 34, a heating resistor, 35, a temperature controller, 36, a cover inlet valve, 37, a cover outlet valve, 38, an input valve, 39 and a sealing cover.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1-6, a geomembrane tensile test device can be performed under the temperature cycling action of different chemical environments, and the specific structure comprises a universal testing machine 1 and a medium cycling box 3, a material cover 2 is arranged in the universal testing machine, the material cover is of a box body structure, one side of the material cover is rotatably connected with a box door, the top and the bottom of the material cover are respectively provided with a coaxial through hole, stretching rods 11 positioned at the top and the bottom of the material cover penetrate through the through holes and extend into the material cover, the extending ends of the two stretching rods are respectively connected with a clamp 12 of the universal testing machine, a geomembrane sample is connected between the two clamps, the stretching rods 11 are in sealing connection with the material cover, and after the box door is closed, the material cover is; a tension sensor 13 is arranged on the stretching rod positioned at the top of the material cover, a temperature sensor 22 is arranged on the outer side wall of the material cover, and a contact of the temperature sensor extends into the cover body and is used for measuring the temperature of the solution or gas in the cover body; two side walls of the material cover are respectively provided with a cover outlet valve 24 and a cover inlet valve 25;
the medium circulation box 3 is of a double-layer heat-preservation closed structure, the upper part of the medium circulation box 3 is also provided with a sealing cover 39, a heating resistor 34 is arranged in the medium circulation box, and the outer side wall of the medium circulation box is provided with a temperature controller 35; the medium circulation box 3 is divided into a left box chamber 31 and a right box chamber 32 by a partition plate, the two box chambers are communicated, and a pump 33 is arranged between the two box chambers; an inlet valve 37 is arranged on the side wall of the bottom of the left box chamber, an outlet valve 36 is arranged on the side wall of the bottom of the right box chamber, an input valve 38 is arranged on the side wall of the top of the right box chamber, the input valve is connected with an external liquid nitrogen system, a heat-preservation connecting pipe 4 is connected between the outlet valve and a cover inlet valve of the material cover, and a heat-preservation connecting pipe is connected between the inlet valve and a cover outlet valve of the material cover;
the tension sensor 13 and the temperature sensor 22 are electrically connected with the data acquisition unit 5, and the data acquisition unit 5, the temperature controller 35 and the universal test machine control system are electrically connected with the computer 6.
As shown in fig. 6, the universal tester jig 12 is detachable and is connected with the stretching rod 11 by a screw thread.
As shown in fig. 7, an automatic control circuit is used to control the cooling and heating cycle. And when the power supply is switched on, the 51 single chip microcomputer operation program sends a temperature reading command to the DS18B 20. Then DS18B20 is sensed by the temperature sensor to convert the medium temperature into analog signal, and then the analog signal is converted into digital signal by the AD converter (one bit temperature change is 0.0625 ℃ in DS18B 20), and the digital signal is transmitted to pin P3.7 of 8051. According to the calculation, 0 ℃ corresponds to 0000H, and 50 ℃ corresponds to 0320H. Comparing the digital signal transmitted by the DS18B20 with 0320H, outputting a pin P2.7 to a high level when the digital signal is less than 0320H, closing a key switch S1, starting the operation of a heating resistor until the signal transmitted by the DS18B20 reaches 0320H, outputting the P2.7 to a low level, disconnecting S1, and circulating the process for setting hours; then outputting a low level by P2.7, outputting a high level by P2.2, closing S2, electrifying a valve U5 to start cooling until the temperature is zero, comparing a DS18B20 transmission signal with 0000H and being more than 0000H, outputting a high level by P2.2, and circulating the processes for setting hours; so that the high temperature and the low temperature are circulated once.
The utility model discloses can be used to consider the geomembrane tensile test of temperature cycle effect under the different chemical environment.
The use method of the device capable of performing the geomembrane tensile test under the temperature circulation effect of different chemical environments is described by taking the coupling tensile test of the geomembrane in the environment of 1 per thousand ferrous sulfate solution, the temperature is 0-50 ℃, the high temperature and the low temperature are constant for 1 hour respectively, and the displacement rate is 0.2mm/min as an example, and the method comprises the following steps:
a) the material cover 2 is installed and connected to the medium circulation tank 3 by a heat-insulating connection pipe 4. The tension sensor 13 (equipped with a UTM4503 electronic universal tester) and the temperature sensor 22(WZP-104 lead type thermal resistor) are electrically connected with the data acquisition device 5(OHR-E200 type two-way transmission output temperature and pressure display acquisition device), and the data acquisition device 5 and the temperature controller 35 are electrically connected with the computer 6.
b) The cut geomembrane sample is placed on the universal testing machine clamp 12, and the box door 23 is closed.
c) Preparing a ferrous sulfate solution of 1 per mill, pouring the ferrous sulfate solution into the right box chamber 32 of the medium circulation box 3 from the top, and covering a sealing cover.
d) Opening an outlet valve and a cover inlet valve, and allowing the ferrous sulfate solution to flow into the material cover 2 from the right box chamber 32 through the heat-preservation connecting pipe 4; and opening an outlet cover valve and an inlet valve, and enabling the ferrous sulfate solution to flow to the left box chamber 31 through the heat preservation pipe, wherein the solution heights of the right box chamber 32, the material cover 2 and the left box chamber 31 are the same and are all higher than the maximum position which can be reached by the upper part of the universal tester clamp 12 in the material cover in the test.
e) The pump 33 is turned on and the pump 33 is adjusted to ensure that the liquid level in the left tank chamber 31 is always lower than the right tank chamber 32, i.e. the liquid level in the left tank chamber 31 is lower than the liquid level in the material cover 2 is lower than the liquid level in the right tank chamber 32. At this time, the ferrous sulfate solution is conveyed from the left tank chamber 31 to the right tank chamber 32 through the pump 33, the solution flows into the material cover 2 with lower pressure from the right tank chamber 32 with higher pressure, the liquid level of the left tank chamber 31 is lower than that of the material cover 2, the solution flows into the left tank chamber 31 with lowest pressure from the material cover 2, the solution flowing into the left tank chamber 31 is conveyed to the right tank chamber 32 through the pump 33, and finally, the ferrous sulfate solution is circulated between the medium circulation tank 3 and the material cover 2.
f) The computer 6 is used for setting and adjusting the temperature change range of the temperature controller 35 to be 0-50 ℃, the duration time of high temperature and low temperature is 1 hour, and the input valve 38 is connected with liquid nitrogen. The computer is used as a master control to control the stretching speed of the universal testing machine to be 0.2mm/min and receive the tension and temperature information from the data acquisition unit 5. The temperature cycle automatic control system receives information in real time and controls the temperature controller 35 to perform resistance heating and the opening and closing of the liquid nitrogen input valve 38. At this time, the computer controls the temperature controller 35 to adjust the heating temperature of the heating resistor 34 to 50 ℃, and when the data collector 5 displays that the temperature of the medium in the material cover measured by the collected temperature sensor 22 reaches 50 ℃ and lasts for 1 hour, the heating resistor 34 is closed, the input valve 38 is opened, and liquid nitrogen is input for refrigeration; when the data collector 5 indicates that the temperature of the medium in the material enclosure measured by the collected temperature sensor 22 reaches 0 c for 1 hour, the input valve 38 is closed and the heating resistor 34 is opened. The above steps are repeated in a circulating way until a complete tensile curve is obtained.
g) The inlet hood valve is closed and the solution in the material hood 2 flows out of the outlet hood valve. The computer 6 outputs a geomembrane tensile test curve under the condition of 0-50 ℃ cold-hot circulation in an environment of 1 per mill of ferrous sulfate solution. And opening the box door to take out the geomembrane sample.
h) And finishing the test, and finishing and cleaning the test device.
The curve obtained in the experiment shows the geomembrane tensile test curve under the condition of 0-50 ℃ cold and hot circulation in a ferrous sulfate solution environment of 1 per mill. And obtaining the influence of iron ions on the geomembrane under the temperature circulation effect by comparing the test curves of the solutions with different concentrations to obtain the change of the tensile property of the geomembrane under the temperature circulation effect in the environment of ferrous sulfate solutions with different concentrations. The device can also change the ferrous sulfate solution into other media, and the influence of liquids or gases such as acid solution, alkaline solution, transition metal-containing leachate, acid gas and alkaline gas on the tensile property of the geomembrane under the condition of cold and hot circulation is considered.
The foregoing is merely an illustration of the preferred embodiments of the present invention and is not intended to limit the invention, and all such modifications, equivalents and improvements as fall within the spirit and principles of the invention are intended to be included therein.
Claims (5)
1. The utility model provides a geomembrane tensile test device which characterized in that: the device comprises a universal testing machine and a medium circulation box, wherein a material cover is arranged in the universal testing machine, the material cover is of a box body structure, one side of the material cover is rotatably connected with a box door, coaxial through holes are formed in the top and the bottom of the material cover, stretching rods positioned at the top and the bottom of the material cover penetrate through the through holes and stretch into the material cover, stretching ends of the two stretching rods are connected with universal testing machine clamps, and a geomembrane sample is connected between the two clamps; a tension sensor is arranged on the stretching rod positioned at the top of the material cover, and a temperature sensor is arranged on the outer side wall of the material cover;
the medium circulation box is of a double-layer heat-preservation closed structure, a sealing cover is further arranged at the upper part of the medium circulation box, a heating resistor is arranged in the medium circulation box, and a temperature controller is arranged on the outer side wall of the medium circulation box; an input valve is arranged on the side wall of the medium circulation box and connected with an external liquid nitrogen system;
the material cover is communicated with the medium circulating box through two heat-preservation connecting pipes;
the tension sensor and the temperature sensor are electrically connected with the data acquisition unit, and the data acquisition unit, the temperature controller and the universal test machine control system are electrically connected with the computer.
2. The geomembrane tensile test device according to claim 1, wherein: the stretching rod is connected with the material cover in a sealing way, and the material cover is sealed and watertight/airtight after the box door is closed.
3. The geomembrane tensile test device according to claim 1, wherein: two side walls of the material cover are respectively provided with a cover outlet valve and a cover inlet valve;
the medium circulation box is divided into a left box chamber and a right box chamber by a partition plate, the two box chambers are communicated with each other, and a pump is arranged between the two box chambers; an inlet valve is arranged on the side wall of the bottom of the left box chamber, an outlet valve is arranged on the side wall of the bottom of the right box chamber, an input valve is arranged on the side wall of the top of the right box chamber, a heat-preservation connecting pipe is connected between the outlet valve and a cover inlet valve of the material cover, and a heat-preservation connecting pipe is connected between the inlet valve and a cover outlet valve of the material cover.
4. The geomembrane tensile test device according to claim 1, wherein: the universal testing machine clamp can be detached and is connected with the universal testing machine stretching rod through a screw rod.
5. The geomembrane tensile test device according to claim 1, wherein: a pump between the two chambers of the medium circulation tank can pump gas or liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021348673.3U CN212904235U (en) | 2020-07-10 | 2020-07-10 | Geomembrane tensile test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021348673.3U CN212904235U (en) | 2020-07-10 | 2020-07-10 | Geomembrane tensile test device |
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| CN212904235U true CN212904235U (en) | 2021-04-06 |
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| CN202021348673.3U Expired - Fee Related CN212904235U (en) | 2020-07-10 | 2020-07-10 | Geomembrane tensile test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166626A (en) * | 2021-10-28 | 2022-03-11 | 河海大学 | Portable tensile test device and method for geosynthetic material in field solution environment |
| CN115078066A (en) * | 2022-06-16 | 2022-09-20 | 西南交通大学 | Soft material cyclic deformation fatigue test system and test method thereof |
-
2020
- 2020-07-10 CN CN202021348673.3U patent/CN212904235U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166626A (en) * | 2021-10-28 | 2022-03-11 | 河海大学 | Portable tensile test device and method for geosynthetic material in field solution environment |
| CN114166626B (en) * | 2021-10-28 | 2023-09-26 | 河海大学 | Portable tensile test device and method for geosynthetic material in site solution environment |
| CN115078066A (en) * | 2022-06-16 | 2022-09-20 | 西南交通大学 | Soft material cyclic deformation fatigue test system and test method thereof |
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