CN113554927A - Portable miniature geotechnical triaxial instrument teaching aid - Google Patents
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- CN113554927A CN113554927A CN202110773800.7A CN202110773800A CN113554927A CN 113554927 A CN113554927 A CN 113554927A CN 202110773800 A CN202110773800 A CN 202110773800A CN 113554927 A CN113554927 A CN 113554927A
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Abstract
The invention discloses a portable miniature geotechnical triaxial apparatus teaching aid which is improved on the basis of a conventional triaxial apparatus and comprises a manual shearing device, a soil sample pressure control device and a soil and water pressure display device. By controlling the disassembly and assembly of the confining pressure cover, the upper guide pipe, the lower drainage channel, the upper drainage channel and the confining pressure channel are respectively controlled to be combined, switched and communicated, and the first ball valve, the second ball valve and the third ball valve are opened and closed, so that the free conversion among a three-axis unconsolidated and unpiloted shear test, a consolidated and drained shear test, an effective stress principle, and an intuitive demonstration test of soil body strength and deformation is realized. The invention can accurately carry out triaxial test on the soil sample, has the advantages of light and portable instrument, reasonable integral structure and simple operation, ensures that the teaching is visual and vivid, can be widely applied to soil mechanics teaching and has great popularization and application values.
Description
Technical Field
The invention relates to a geomechanics teaching aid, in particular to a portable miniature geotechnical triaxial instrument teaching aid.
Background
The 'soil mechanics' course is a professional basic platform course of civil engineering major and comprises two parts of theoretical learning and experimental teaching. A large number of theories in soil mechanics come from experiments, for example, the effective stress principle of soil is an important theoretical support of soil mechanics, but the theory is abstract and difficult to understand by beginners, so that students can have visual understanding by being generally matched with triaxial test explanation. The triaxial apparatus mainly comprises a soil sample, a confining pressure cover, a controller and the like from inside to outside. However, the conventional triaxial apparatus is heavy, and the confining pressure cover is arranged outside the soil sample, so that students cannot directly feel the strength change of the soil body. And the external pressure load is loaded through complicated hydraulic instrument, and the student is difficult to experience audio-visual pressure load effect, and can't judge the change of pore pressure in the soil sample, leads to can't learn to use. And the controller of the conventional triaxial apparatus is large and heavy, and the portable carrying of the triaxial apparatus cannot be realized, thereby bringing great influence to classroom teaching. Therefore, the ideal teaching effect can not be achieved no matter in theoretical learning or practical learning.
Disclosure of Invention
The portable miniature geotechnical triaxial apparatus teaching aid has the characteristics of simple structure, small volume, light weight, portability, low power supply requirement, simplicity in operation and capability of continuously and intuitively demonstrating various triaxial tests.
The technical scheme of the invention is as follows:
a portable miniature geotechnical triaxial apparatus teaching aid is improved on the basis of a conventional triaxial apparatus; the conventional triaxial apparatus comprises a loading frame 1, an upright post sleeve 2, a top cap 3, a latex ring 4, a permeable stone 5, filter paper 6, a soil sample chamber 7, a soil sample 8, a latex film 9, a first fixing bolt 10, a confining pressure cover 11, a bottom movable connection 12, a second fixing bolt 14, a movable cross beam 15, a third fixing spiral 16, a contact head 18, an air inlet (outlet) hole 19, a first ball valve 20, a confining pressure channel 21, a second ball valve 23, a lower drainage channel 24, a third ball valve 25, an upper drainage channel 27, a sample mounting seat 28 and a bottom plate 30; the bottoms of two support legs of the loading frame 1 are arranged on a bottom plate 30, and the upper parts of the two support legs are connected through a movable cross beam 15 to form an external framework of the conventional triaxial apparatus; the bottom movable connection 12 is arranged on the bottom plate 30; the soil sample chamber 7 is arranged at the lower part of the movable cross beam 15 and is connected with the movable cross beam through a contact head 18; the first fixing bolt 10 is used for fixing a movable bottom connection 12; the second fixing bolt 14 is used for fixing the load carrier 1 and the movable cross beam 15; the fixed screw III 16 is used for fixing the movable cross beam 15 and the contact head 18; the confining pressure cover 11 is arranged between the bottom movable connection 12 and the soil sample chamber 7, the top of the confining pressure cover 11 is provided with an air inlet (outlet) hole 19, and the soil sample 8 is arranged on the sample mounting seat 28 and is arranged in the middle of the confining pressure cover 11 together with the sample mounting seat 28; a group of permeable stones 5 and filter paper 6 are respectively arranged at the upper position and the lower position of the soil sample 8, so that the soil sample 8 can be drained conveniently, the upper part of the soil sample 8 is drained through an upper drainage channel 27, and the lower part of the soil sample 8 is drained through a lower drainage channel 24; the ball valve I20, the ball valve II 23 and the ball valve III 25 are respectively used for controlling the drainage or exhaust of the confining pressure channel 21, the upper drainage channel 27 and the lower drainage channel 24. The upper end of the soil sample 8 is connected with the contact head 18 through the top cap 3, and the outside of the soil sample 8 is wrapped by the latex film 9.
A portable miniature geotechnical triaxial apparatus teaching aid is characterized by comprising a manual shearing device, a soil sample pressure control device and a soil and water pressure display device.
The manual shearing device comprises a worm gear box 29, a hand wheel 13 and a movable loading head 17; the manual shearing device is arranged at the lower part of the bottom movable connection 12; the movable loading head 17 is mounted between the contact head 18 and the movable cross-beam 15. The hand wheel 13 is connected with the worm gear box 29, and the worm gear box 29 is braked by rotating the hand wheel 13, so that the ejector rod of the worm gear box 29 rises. Thereby make bottom swing joint 12 rise, to soil sample 8 loading vertical effort, realize simulating soil sample and cut.
The soil sample pressure control device comprises an upper guide pipe 31, a lower guide pipe 32, a pressure gauge 33, a pressure control valve 34, a pressure pipe 35 and a pressure control pump 36. The upper duct 31 and the lower duct 32 are connected to the lower drainage passage 24 and the upper drainage passage 27, respectively; the pressure control pump 36 is communicated with the soil sample chamber 7 through an upper guide pipe 31 and a lower guide pipe 32, and a pressure gauge 33, a pressure control valve 34 and a pressure pipe 35 are arranged between the pressure control pump 36 and the upper guide pipe 31 and the lower guide pipe 32; the pressure gauge 33 is used for displaying the pressure of the pressure control pump 36; the pressure control valve 34 regulates the amount of gas passing through, and thus the pressure exerted on the soil sample chamber 7 by the pressure control pump 36.
The soil and water pressure display device comprises a hole pressure measuring tube 26 with scales and an external digital display pressure gauge 37, wherein the hole pressure measuring tube 26 with scales is arranged at the bottom of the movable connection 12 and is further connected with the soil sample 8; the pore water pressure in the soil sample 8 can be measured in real time by reading the water pressure value on the pore pressure measuring tube 26 with the scales; the external digital display pressure gauge 37 is connected with the movable loading head 17, and the movable loading head 17 is communicated with the soil sample 8 through the contact head 18, so that the external digital display pressure gauge 37 can be used for measuring and reading the vertical force borne by the soil sample 8.
By controlling the disassembly and assembly of the confining pressure cover 11, the combination switching communication between the upper guide pipe 31 and the lower guide pipe 32 and the lower drainage channel 24, the combination switching communication between the upper drainage channel 27 and the confining pressure channel 21 and the opening and closing of the ball valve I20, the ball valve II 23 and the ball valve III 25 are respectively controlled, so that the free conversion among a three-axis unconsolidated and unpiloted shear test, a consolidated and drained shear test, an effective stress principle, and an intuitive demonstration test of soil body strength and deformation is realized.
Advantageous effects of the invention
1. The manual worm gear device, the pressure control pump device and the external digital display pressure gauge are used for replacing components such as a controller of the existing laboratory triaxial apparatus, the large and heavy use of the controller is avoided, and corresponding electric control components are omitted, so that the structure is greatly simplified; simultaneously, on the basis of simplifying the structure, can reduce the volume of equipment by a wide margin, alleviate the weight of equipment to realized the portable of triaxial apparatus and carried, can take the triaxial apparatus of placing originally in the laboratory to the teaching classroom, carry out the show in kind of triaxial apparatus and cooperate the explanation in classroom teaching.
2. According to the invention, through controlling the disassembly and assembly of the confining pressure cover, the combined communication of the conduit and the channel and the switch of the ball valve, the free conversion among the three-axis unconsolidated and non-drained shear test, the consolidated and drained shear test and the visual demonstration test of the effective stress principle and the soil body strength and deformation is realized, the three-axis test demonstration can be accurately and systematically carried out, and the teaching is convenient for students to manually operate in a classroom, so that the teaching is vivid and interesting.
3. The invention not only realizes the convenient carrying of the triaxial apparatus, but also realizes the consistent function with the existing laboratory triaxial apparatus, thereby ensuring the connection between the classroom learning of students and the laboratory test and achieving the effect of integrating the production, study and research.
4. In conclusion, the invention has high practicability, can meet the teaching requirement of the triaxial test in the soil mechanics teaching of the civil engineering major of higher schools and can achieve good teaching effect.
Drawings
FIG. 1 is a schematic three-dimensional structure of a portable micro geotechnical triaxial apparatus teaching aid of the invention;
FIG. 2 is a front view of the portable miniature geotechnical triaxial apparatus teaching aid of the present invention;
FIG. 3 is a main sectional view of a portable micro geotechnical triaxial apparatus teaching aid of the present invention;
FIG. 4 is a schematic bottom plan view of the portable triaxial apparatus for teaching purpose;
description of reference numerals:
1-loading frame, 2-column sleeve, 3-top cap, 4-latex ring, 5-permeable stone, 6-filter paper, 7-soil sample chamber, 8-soil sample, 9-latex film, 10-fixing bolt I, 11-confining pressure cover, 12-bottom movable connection, 13-handwheel, 14-fixing bolt II, 15-movable beam, 16-fixing spiral III, 17-movable loading head, 18-contact head, 19-air inlet (outlet) hole, 20-ball valve I, 21-confining pressure channel, 22-connecting pipe, 23-ball valve II, 24-lower drainage channel, 25-ball valve III, 26-hole pressure measuring pipe with scale, 27-upper drainage channel, 28-sample mounting seat, 29-turbine worm box, 30-bottom plate, 31-upper guide pipe, 32-lower guide pipe, 33-pressure gauge, 34-pressure control valve, 35-pressure pipe, 36-pressure control pump and 37-external digital display pressure gauge.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. The drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1 and 4, a portable miniature geotechnical triaxial apparatus teaching aid is improved on the basis of a conventional triaxial apparatus; the conventional triaxial apparatus comprises a loading frame 1, an upright post sleeve 2, a top cap 3, a latex ring 4, a permeable stone 5, filter paper 6, a soil sample chamber 7, a soil sample 8, a latex film 9, a first fixing bolt 10, a confining pressure cover 11, a bottom movable connection 12, a second fixing bolt 14, a movable cross beam 15, a third fixing spiral 16, a contact head 18, an air inlet (outlet) hole 19, a first ball valve 20, a confining pressure channel 21, a second ball valve 23, a lower drainage channel 24, a third ball valve 25, an upper drainage channel 27, a sample mounting seat 28 and a bottom plate 30; the bottoms of two support legs of the loading frame 1 are arranged on a bottom plate 30, and the upper parts of the two support legs are connected through a movable cross beam 15 to form an external framework of the conventional triaxial apparatus; the bottom movable connection 12 is arranged on the bottom plate 30; the soil sample chamber 7 is arranged at the lower part of the movable cross beam 15 and is connected with the movable cross beam through a contact head 18; the first fixing bolt 10 is used for fixing a movable bottom connection 12; the second fixing bolt 14 is used for fixing the load carrier 1 and the movable cross beam 15; the fixed screw III 16 is used for fixing the movable cross beam 15 and the contact head 18; the confining pressure cover 11 is arranged between the bottom movable connection 12 and the soil sample chamber 7, the top of the confining pressure cover 11 is provided with an air inlet (outlet) hole 19, and the soil sample 8 is arranged on the sample mounting seat 28 and is arranged in the middle of the confining pressure cover 11 together with the sample mounting seat 28; a group of permeable stones 5 and filter paper 6 are respectively arranged at the upper position and the lower position of the soil sample 8, so that the soil sample 8 can be drained conveniently, the upper part of the soil sample 8 is drained through an upper drainage channel 27, and the lower part of the soil sample 8 is drained through a lower drainage channel 24; the ball valve I20, the ball valve II 23 and the ball valve III 25 are respectively used for controlling the confining pressure channel 21, the upper drainage channel 27 and the lower drainage channel 24 to drain water or exhaust gas. The upper end of the soil sample 8 is connected with the contact head 18 through the top cap 3, and the outside of the soil sample 8 is wrapped by the latex film 9.
A portable miniature geotechnical triaxial apparatus teaching aid is characterized by comprising a manual shearing device, a soil sample pressure control device and a soil and water pressure display device, and an experiment teaching application method of the apparatus is provided.
As shown in fig. 2, the manual shearing device comprises a worm gear box 29, a hand wheel 13 and a movable loading head 17; the manual shearing device is arranged at the lower part of the bottom movable connection 12; the movable loading head 17 is mounted between the contact head 18 and the movable cross-beam 15. The hand wheel 13 is connected with the worm gear box 29, and the worm gear box 29 is braked by rotating the hand wheel 13, so that a mandril (not shown) of the worm gear box 29 ascends. Thereby make bottom swing joint 12 rise, to soil sample 8 loading vertical effort, realize simulating soil sample and cut.
As shown in fig. 1(c), the soil sample pressure control device comprises an upper conduit 31, a lower conduit 32, a pressure gauge 33, a pressure control valve 34, a pressure pipe 35 and a pressure control pump 36. The upper duct 31 and the lower duct 32 are connected to the lower drainage passage 24 and the upper drainage passage 27, respectively; the pressure control pump 36 is communicated with the soil sample chamber 7 through an upper guide pipe 31 and a lower guide pipe 32, and a pressure gauge 33, a pressure control valve 34 and a pressure pipe 35 are arranged between the pressure control pump 36 and the upper guide pipe 31 and the lower guide pipe 32; the pressure gauge 33 is used for displaying the pressure of the pressure control pump 36; the pressure control valve 34 regulates the amount of gas passing through, and thus the pressure exerted on the soil sample chamber 7 by the pressure control pump 36.
As shown in fig. 1(b), the soil and water pressure display device comprises a hole pressure measuring tube 26 with scales and an external digital display pressure gauge 37, wherein the hole pressure measuring tube 26 with scales is arranged at the bottom of the movable connection 12 and is further connected with a soil sample 8; the pore water pressure in the soil sample 8 can be measured in real time by reading the water pressure value on the pore pressure measuring tube 26 with the scales; the external digital display pressure gauge 37 is connected with the movable loading head 17, and the movable loading head 17 is communicated with the soil sample 8 through the contact head 18, so that the external digital display pressure gauge 37 can be used for measuring and reading the vertical force borne by the soil sample 8.
After the confining pressure cover 11 is detached, negative pressure is applied by connecting a pressure control pump 36, the air quantity is continuously changed by adjusting a pressure control valve 34, different negative pressure is loaded on the soil sample 8, and the strength change of the soil body can be sensed by direct touch.
By controlling the disassembly and assembly of the confining pressure cover 11, the combination switching communication between the upper guide pipe 31 and the lower guide pipe 32 and the lower drainage channel 24, the combination switching communication between the upper drainage channel 27 and the confining pressure channel 21 and the opening and closing of the ball valve I20, the ball valve II 23 and the ball valve III 25 are respectively controlled, so that the free conversion among a three-axis unconsolidated and unpiloted shear test, a consolidated and drained shear test, an effective stress principle, and an intuitive demonstration test of soil body strength and deformation is realized.
The first embodiment is as follows: triaxial test consolidation and drainage test demonstration
As shown in fig. 1, the first ball valve 20, the second ball valve 23 and the third ball valve 25 are adjusted to respectively open the confining pressure passage 21, the upper drainage passage 27 and the lower drainage passage 24, and the hole pressure measuring pipe 26 with scales is respectively closed. During the intuitive demonstration of the effective stress principle, as shown in fig. 1, the confining pressure cover 11 is taken down, the upper guide pipe 31 and the lower guide pipe 32 are respectively connected to the lower drainage channel 24 and the upper drainage channel 27, the ball valve I20 is clockwise rotated by 90 degrees to close the confining pressure channel 21, the ball valve II 23 is clockwise rotated by 180 degrees to close the hole pressure measuring tube 26 with scales, the pressure gauge 33 is adjusted to sequentially control the soil sample 8 at different effective stresses, and the strength and the deformation state of the soil sample are observed and sensed; when the triaxial test is not consolidated and is not drained, as shown in fig. 1, the confining pressure cover 11 is fixed, the hand wheel 13 is rotated to ensure that the contact head 18 is in good contact with the movable loading head, the ball valve I20, the ball valve II 23 and the ball valve III 25 are rotated clockwise by 90 degrees to close the upper drainage channel 27, the lower drainage channel 24 and the confining pressure channel 21, the hole pressure measuring tube 26 with scales is opened, and the hand wheel 13 is rotated at a certain speed to realize the shearing of the soil sample;
example two: triaxial test consolidation non-drainage test demonstration
Fixing the confining pressure cover 11, rotating the hand wheel 13 to ensure that the contact head 18 is in good contact with the movable loading head 17, firstly, clockwise rotating the second ball valve 23 by 90 degrees to open the pore pressure measuring tube 26 with scales, connecting the upper guide tube 31 to the confining pressure channel 21, pulling out the lower guide tube 32 to ensure sealing, adjusting the pressure gauge 33 to control the soil sample 8 at a certain effective stress to realize consolidation, after the consolidation is finished, clockwise rotating the second ball valve 23 and the third ball valve 25 by 90 degrees to close the upper drainage channel 27 and the lower drainage channel 24, and rotating the hand wheel 13 at a certain speed to realize shearing of the soil sample;
example three: triaxial test consolidation drainage test demonstration
The confining pressure cover 11 is fixed, the hand wheel 13 is rotated to ensure that the contact head 18 is in good contact with the movable loading head 17, the ball valve II 23 is rotated by 90 degrees clockwise to open the pore pressure measuring tube 26 with scales, the upper guide tube 31 is connected to the confining pressure channel 21, the lower guide tube 32 is pulled out to ensure sealing, the pressure gauge 33 is adjusted to control the soil sample 8 to be solidified at certain effective stress, and after the solidification is finished, the hand wheel 13 is rotated at a certain speed to realize the shearing of the soil sample.
Further optimization of the embodiment:
preferably, the confining pressure cover 11 is detachable, the pressure control pump 36 can provide effective confining pressure, and the pressure gauge 33 can set the effective confining pressure, and can sequentially perform visual demonstration according to an effective stress principle, soil body strength and deformation and a triaxial test demonstration sequence.
Preferably, the conduit can be communicated with the channels in any combination, and the ball valve can control the on-off state of the communication.
Preferably, the hand wheel is driven by the worm gear to realize semi-automatic lifting of the movable connection, and vertical load borne by the soil sample can be intuitively sensed in the shearing process; the external digital display pressure gauge displays the vertical load borne by the soil sample in real time, and the vertical load borne by the soil sample can be directly observed in the shearing process.
Preferably, the pore pressure measuring pipe with scales is communicated with the bottom of the soil sample and is independent from the lower drainage channel.
Preferably, through controlling the disassembly and assembly of the confining pressure cover, the combined communication of the conduit and the channel and the switch of the ball valve, the free conversion among a three-axis unconsolidated and unpopped shear test, a consolidated and drainage shear test, an intuitive demonstration test of an effective stress principle, soil body strength and deformation is realized.
Claims (2)
1. A portable miniature geotechnical triaxial apparatus teaching aid is improved on the basis of a conventional triaxial apparatus; the conventional triaxial apparatus comprises a loading frame (1), an upright post sleeve (2), a top cap (3), a latex ring (4), a permeable stone (5), filter paper (6), a soil sample chamber (7), a soil sample (8), a latex film (9), a first fixing bolt (10), a confining pressure cover (11), a bottom movable connection (12), a second fixing bolt (14), a movable cross beam (15), a third fixed spiral (16), a contact head (18), an air inlet (outlet) hole (19), a first ball valve (20), a confining pressure channel (21), a second ball valve (23), a lower drainage channel (24), a third ball valve (25), an upper drainage channel (27), a sample mounting seat (28) and a bottom plate (30); the bottoms of two support legs of the loading frame (1) are arranged on a bottom plate (30), and the upper parts of the two support legs are connected through a movable cross beam (15) to form an external framework of a conventional triaxial apparatus; the bottom movable connection (12) is arranged on the bottom plate (30); the soil sample chamber (7) is arranged at the lower part of the movable cross beam (15) and is connected with the movable cross beam through a contact head (18); the first fixing bolt (10) is used for fixing the movable connection (12) of the bottom; the second fixing bolt (14) is used for fixing the load carrier (1) and the movable cross beam (15); the fixed screw III (16) is used for fixing the movable cross beam (15) and the contact head (18); the confining pressure cover (11) is arranged between the bottom movable connection (12) and the soil sample chamber (7), the top of the confining pressure cover (11) is provided with an air inlet (outlet) hole (19), the soil sample (8) is arranged on the sample mounting seat (28) and is arranged in the middle of the confining pressure cover (11) together with the sample mounting seat (28); a group of permeable stones (5) and filter paper (6) are respectively arranged at the upper position and the lower position of the soil sample (8) to facilitate drainage of the soil sample (8), drainage at the upper part of the soil sample (8) is discharged through an upper drainage channel (27), and drainage at the lower part of the soil sample (8) is discharged through a lower drainage channel (24); the ball valve I (20), the ball valve II (23) and the ball valve III (25) are respectively used for controlling drainage or exhaust of the confining pressure channel (21), the upper drainage channel (27) and the lower drainage channel (24); the upper end of the soil sample (8) is connected with the contact head (18) through the top cap (3), and the outside of the soil sample (8) is wrapped by the latex film (9); a portable miniature geotechnical triaxial apparatus teaching aid is characterized by comprising a manual shearing device, a soil sample pressure control device and a soil and water pressure display device;
the manual shearing device comprises a worm gear box (29), a hand wheel (13) and a movable loading head (17); the manual shearing device is arranged at the lower part of the bottom movable connection (12); the movable loading head (17) is arranged between the contact head (18) and the movable cross beam (15); the hand wheel (13) is connected with the worm and gear box (29), and the worm and gear box (29) is braked by rotating the hand wheel (13), so that an ejector rod of the worm and gear box (29) rises; thereby enabling the bottom movable connection (12) to rise and loading a vertical acting force to the soil sample (8) to realize the simulation of shearing of the soil sample;
the soil sample pressure control device comprises an upper guide pipe (31), a lower guide pipe (32), a pressure gauge (33), a pressure control valve (34), a pressure pipe (35) and a pressure control pump (36); the upper conduit (31) and the lower conduit (32) are respectively connected with the lower drainage channel (24) and the upper drainage channel (27); the pressure control pump (36) is communicated with the soil sample chamber (7) through an upper guide pipe (31) and a lower guide pipe (32), and a pressure gauge (33), a pressure control valve (34) and a pressure pipe (35) are arranged between the pressure control pump (36) and the upper guide pipe (31) and between the pressure control pump and the lower guide pipe (32); the pressure gauge (33) is used for displaying the pressure of the pressure control pump (36); the pressure control valve (34) adjusts the gas passing through to adjust the pressure of the pressure control pump (36) acting on the soil sample chamber (7);
the soil and water pressure display device comprises a pore pressure measuring tube (26) with scales and an external digital display pressure gauge (37), wherein the pore pressure measuring tube (26) with scales is arranged at the bottom of the movable connection (12) and is further connected with the soil sample (8); the pore water pressure in the soil sample (8) can be measured in real time by reading the water pressure value on the pore pressure measuring tube (26) with scales; the external digital display pressure gauge (37) is connected with the movable loading head (17), and the movable loading head (17) is communicated with the soil sample (8) through the contact head (18), so that the external digital display pressure gauge (37) can be used for measuring and reading the vertical force borne by the soil sample (8).
2. A hand held miniature geotechnical triaxial apparatus as claimed in claim 1, wherein:
by controlling the disassembly and assembly of the confining pressure cover (11), the upper guide pipe (31), the lower guide pipe (32), the lower drainage channel (24), the upper drainage channel (27) and the confining pressure channel (21) are respectively controlled to be combined, switched and communicated, and the first ball valve (20), the second ball valve (23) and the third ball valve (25) are opened and closed, so that the free conversion among three-axis consolidation and non-drainage shear tests, consolidation and drainage shear tests, effective stress principles, soil body strength and deformation visual demonstration tests is realized.
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| KR101656503B1 (en) * | 2016-04-21 | 2016-09-09 | (주)에드모텍 | 3 Axis-type Motion Base with Center Axis |
| CN205643043U (en) * | 2016-05-30 | 2016-10-12 | 山东大学 | Testing instrument of triaxial test test soil body shear strength index |
| CN112161908A (en) * | 2020-10-14 | 2021-01-01 | 浙大城市学院 | Triaxial apparatus continuous seepage test device and use method thereof |
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2021
- 2021-07-08 CN CN202110773800.7A patent/CN113554927B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775792A (en) * | 2010-01-26 | 2010-07-14 | 化学工业岩土工程有限公司 | Triaxial shear test system of soil sample and drainage fixing method |
| CN201637635U (en) * | 2010-01-26 | 2010-11-17 | 化学工业岩土工程有限公司 | Triaxial shearing test system for soil samples |
| CN104715668A (en) * | 2014-12-10 | 2015-06-17 | 长沙理工大学 | Geotechnical triaxial compression experiment teaching system |
| CN104964878A (en) * | 2015-07-14 | 2015-10-07 | 中国科学院武汉岩土力学研究所 | Triaxial test system and method for unsaturated soil multi-field coupling |
| KR101656503B1 (en) * | 2016-04-21 | 2016-09-09 | (주)에드모텍 | 3 Axis-type Motion Base with Center Axis |
| CN205643043U (en) * | 2016-05-30 | 2016-10-12 | 山东大学 | Testing instrument of triaxial test test soil body shear strength index |
| CN112161908A (en) * | 2020-10-14 | 2021-01-01 | 浙大城市学院 | Triaxial apparatus continuous seepage test device and use method thereof |
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