CN110044726B - Be applicable to earth rock contact surface ring shear apparatus test system - Google Patents
Be applicable to earth rock contact surface ring shear apparatus test system Download PDFInfo
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- CN110044726B CN110044726B CN201910269926.3A CN201910269926A CN110044726B CN 110044726 B CN110044726 B CN 110044726B CN 201910269926 A CN201910269926 A CN 201910269926A CN 110044726 B CN110044726 B CN 110044726B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
Abstract
The application provides a testing system suitable for a earth-rock contact surface ring shear apparatus, which comprises: the rock and soil sample preparation instrument comprises a first base, a first frame, an upper shearing box and a lower shearing box, wherein the first frame is fixed on the first base, a sliding power arm is arranged in the middle of the first frame, a pressing block is arranged on the sliding power arm, the bottom of the lower shearing box is detachably fixed on the first base, and the upper shearing box is located on the lower shearing box; the ring shear apparatus comprises a second base, a second frame and a rotary platform, wherein the second frame is fixed on the second base, the second base is rotationally connected with the rotary platform, an oil pressure chamber is arranged on the upper portion of the second frame, the oil pressure chamber is connected with a telescopic upright post, the telescopic upright post is connected with a pressure transmission ring plate, a pressure sensor is arranged on the pressure transmission ring plate, the rotary platform is detachably connected with a lower shear box, and a pore water pressure sensor is arranged in the upper shear box. The application has the beneficial effects that: the progressive destructive behavior of the soil slide body along the structural surface in the rock slide bed can be simulated.
Description
Technical Field
The application relates to the field of rock-soil mass annular shear test instruments, in particular to a test system suitable for a rock-soil contact surface annular shear instrument.
Background
The ring shear apparatus is mainly used as geotechnical test equipment for researching the mechanical properties of soil under the condition of large shear displacement, has outstanding advantages in researching the mechanical properties of soil under the condition of large shear displacement because of the characteristics of large shear displacement, and has important academic significance for slope stability analysis, mechanical mechanism research of geological disaster occurrence, slope progressive damage process and the like. With the continuous improvement of the technology level and the continuous maturation of the processing technology of geotechnical test equipment, the manufacture of the ring shearing instrument tends to be large-scale and automatic, and the precision and the function of the ring shearing instrument are obviously improved. The large-scale high-speed high-pressure dynamic load ring shear apparatus developed by the university of Kyoto in Japan disaster prevention research institute has outstanding advantages, and the large-scale high-speed high-pressure dynamic load ring shear apparatus not only can realize the whole-process control of a computer and has high-speed shearing performance, but also can reveal the stress change, pore water change and possible liquefaction effect of a sliding crack surface in the landslide process through the high simulation of on-site geological conditions.
The existing ring shear equipment for slope stability analysis has a universality characteristic: the samples used for the study were all soil samples and the vast majority of study subjects faced soil landslide. Because early annular shear apparatus is mainly aimed at soil landslide and landslide soil sample is convenient to prepare, researchers are mostly on conventional annular shear apparatus to continuously improve the precision and performance, and a batch of high-performance high-precision annular shear apparatus facing soil sample is developed. Therefore, the conventional ring shearing machine is very suitable for researching the shearing strength of soil mass of the soil mass landslide slide belt.
However, as the knowledge of geological phenomena continues to be in depth, the slopes include not only the soil slopes but also the rock slopes and the rock-soil slopes. The ring shear device is used for carrying out ring shear samples, a part of the manufactured disc-shaped soil sample needs to be removed by using a ring cutter to form a circular ring-shaped soil sample, the circular ring-shaped soil sample is placed into the ring shear device for testing, the rock sample is hard and cannot be cut by using the ring cutter, and the rock sample cannot be cut due to the limitation of a conventional cutting technology, so that the conventional ring shear device cannot carry out simulation research on rock-soil landslide, and the type of a slope researched by using the conventional ring shear device has a certain limitation.
Disclosure of Invention
In view of the foregoing, embodiments of the present application provide a ring shear system suitable for use with earth rock contact surfaces.
The embodiment of the application provides a testing system suitable for a soil-rock contact surface ring shear apparatus, which comprises a rock-soil sample preparation apparatus and a ring shear apparatus,
the rock and soil sample preparation instrument comprises a first base, a first frame, an upper shearing box and a lower shearing box, wherein the first frame is fixed on the first base, a sliding force arm capable of sliding up and down is arranged in the middle of the first frame, a pressing block is arranged on the sliding force arm, the bottom of the lower shearing box is detachably fixed on the first base, the upper shearing box is located on the lower shearing box, a lower containing ring is arranged in the lower shearing box, an upper containing ring is arranged in the upper shearing box, the upper containing ring and the lower containing ring are vertically aligned, the upper containing ring is arranged below the pressing block, the lower containing ring is used for containing a rock sample, and the sliding force arm slides downwards to enable the pressing block to press the soil sample and the rock sample to form a rock and soil sample;
the annular shear apparatus comprises a second base, a second frame and a rotary platform, wherein the second frame is fixed on the second base, the rotary platform is connected with the upper portion of the second base in a rotating mode, an oil pressure chamber is arranged on the upper portion of the second frame, the oil pressure chamber is connected with a downwardly extending telescopic upright post, the lower end of the telescopic upright post is connected with a pressure transmission annular plate, a pressure sensor is arranged at the joint of the telescopic upright post and the pressure transmission annular plate, the upper end of the rotary platform is detachably connected with a lower shear box, a lower containing ring and a rock-soil sample in an upper containing ring are arranged below the pressure transmission annular plate, a pore water pressure sensor is arranged in the upper shear box, the oil pressure chamber drives the telescopic upright post to apply axial pressure to the pressure transmission annular plate, the pressure sensor is used for monitoring the axial pressure, and the rotary platform rotates to apply annular shear force to the rock-soil sample, and the pressure sensor is used for monitoring pore water pressure in the rock-soil sample.
Further, the system also comprises a computer, wherein the computer is connected with the pressure sensor and the pore water pressure sensor and is used for receiving monitoring data of the pressure sensor and the pore water pressure sensor.
Further, be equipped with angle sensor on the second frame, angle sensor is used for the monitoring rotation angle of rotary platform, the middle part of second frame is equipped with the connection arm of force that the level set up, connect arm of force middle part transversal and fixed connection the pressure transmission ring board, the both ends of connecting the arm of force respectively sliding connection the both sides of second frame, and one of them end is equipped with range sensor, range sensor is used for the monitoring pressure transmission ring board decline distance.
Further, the bottom surface of the lower shearing box is provided with a plurality of grooves, the upper end surface of the first base and the upper end surface of the rotary platform are provided with a plurality of bosses, and the bosses are matched with the grooves, so that the lower shearing box can be detachably fixed on the first base or the rotary platform.
Further, a bearing is arranged in the middle of the second base, the middle of the lower end face of the rotary platform is connected with the bearing, and the edge of the lower end face of the rotary platform is provided with a roller lower part which contacts the upper end face of the second base.
Further, a rubber ring is sleeved at the joint of the lower shearing box and the upper shearing box, and a drain pipe is arranged on the containing ring of the upper shearing box.
Further, the lower shearing box comprises a base and an outer ring baffle, an inner ring is arranged in the middle of the base, the outer ring baffle is arranged on the periphery of the inner ring, a lower containing ring is formed between the outer ring baffle and the inner ring, and the outer ring baffle is detachably fixed on the edge of the base.
Further, a plurality of limit protrusions are arranged on the inner wall of the outer ring baffle.
Further, the briquetting up end is the arc stirring platform, the top of briquetting is equipped with hydraulic press, agitator and agitator arm support, the hydraulic press with the agitator arm support is fixed in first frame upper portion, just the hydraulic press with the agitator set up in the agitator arm support is inside, the rotatory arm of force upper end is connected to the hydraulic press lower part, the rotatory arm of force lower extreme is connected the agitator, the agitator arm support lower extreme covers the briquetting up end, the arc stirring platform is used for placing the soil sample, the hydraulic press drive the agitator stirring the soil sample.
Further, the first base is provided with a slidable cutter, and the cutter is used for cutting the upper end face of the rock and soil sample.
The technical scheme provided by the embodiment of the application has the beneficial effects that: the application is suitable for a soil-rock contact surface ring shear tester test system, a soil sample is arranged in a lower shear box, and a rock sample is arranged in an upper shear box, so that the ring shear tester can simulate progressive damage behavior of a soil sliding body on a rock sliding bed along a structural surface, the application range of the ring shear tester in landslide disasters is enlarged, the quick preparation of a sample can be realized, the shearing force applied to the sample and the axial pressure perpendicular to the shearing surface of the sample are controlled in real time, the pore water pressure in the sample is monitored in real time, meanwhile, the test system has the functions of sample preparation and shear test, procedures are saved, the damage risk of traditional equipment in the process of making the ring sample is reduced, and the test system is high in efficiency and precision.
Drawings
FIG. 1 is a schematic view of a ring shear apparatus suitable for use in a land rock interface ring shear apparatus test system in accordance with the present application;
FIG. 2 is a schematic diagram of a rock sample preparation apparatus suitable for use in the earth-rock interface ring shear test system of the present application;
fig. 3 is a front view of the lower shear box 4 of fig. 2;
fig. 4 is a top view of the lower shear box 4 of fig. 2.
In the figure: 1-first base, 2-first frame, 3-upper shear box, 4-lower shear box, 5-sliding power arm, 6-press block, 7-hydraulic press, 8-rotating arm, 9-stirrer, 10-stirrer arm guard, 11-cutting chute, 12-cutter, 13-boss, 14-inner ring, 15-outer ring baffle, 16-upper housing ring, 17-outer wing, 18-groove, 19-bolt, 20-threaded hole, 21-limit boss, 22-base, 23-second base, 24-rotating platform, 25-second frame, 26-oil pressure chamber, 27-fixed rod, 28-telescopic upright, 29-pressure transmitting ring plate, 30-pressure sensor, 31-water filter net, 32-drain pipe, 33-connecting arm, 34-ranging sensor, 35-pore water pressure sensor, 36-rubber ring, 37-angle sensor, 38-bearing, 39-roller, 40-computer, 41-data transmission line, 42-discus.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present application provides a ring shear test system for a land and rock contact surface, comprising a rock and soil sample preparation apparatus, a ring shear apparatus, and a computer 40.
Please refer to fig. 2, the soil sample preparation appearance includes first base 1, first frame 2, go up shearing box 3 and lower shearing box 4, first frame 2 is rectangular frame, the left and right both sides lower extreme of first frame 2 is fixed in on the first base 1, the higher authority of first frame 2 is fixed with hydraulic press 7 and agitator arm guard 10, the upper end of rotatory arm 8 is connected to hydraulic press 7 lower part, rotatory arm 8 lower extreme is connected agitator 9, agitator 9 is the shovel dress agitator, just hydraulic press 7 with agitator 9 set up in agitator arm guard 10 is inside, agitator arm guard 10 upper end is connected on the first frame 2, the first frame 2 middle part is equipped with the sliding force arm 5 that can reciprocate, sliding force arm 5's both ends sliding connection respectively the left and right of first frame 2 make sliding force arm 5 can slide along vertical direction, the middle part is equipped with briquetting arm 5, the briquetting end face 6 is equipped with under the annular pressure block 6 the briquetting end face is equipped with the briquetting end face down, the briquetting end face is equipped with the annular face guard 6, the stirring end face is equipped with under the briquetting end face is equipped with the briquetting end face 6, the stirring end face is equipped with the arc-shaped and is used for the stirring end face is placed down in the arc-shaped. The upper end face of the first base 1 is provided with a plurality of bosses 13, the bosses 13 are stepped bosses, the upper end face of the first base 1 is also provided with a cutting chute 11, a cutter 12 is arranged in the cutting chute 11, and the cutter 12 can slide along the cutting chute.
Referring to fig. 3 and 4, the lower shear 4 box includes a base 22 and an outer ring baffle 15, an inner ring 14 is disposed in the middle of an upper end surface of the base 22, the outer ring baffle 15 is disposed at the periphery of the inner ring 14, a lower accommodating ring 16 is formed between the outer ring baffle 15 and the inner ring 14, the bottom of the outer ring baffle 15 is fixedly connected with the upper end surface of the base 22 through bolts 19, a plurality of outer wings 17 are disposed on the outer sides of the outer ring baffle 16, threaded holes 20 are disposed on the outer wings 17, another threaded hole is disposed on the upper end surface of the base below the threaded holes 20, and the two threaded holes 20 are also vertically aligned and connected through bolts, so that the outer ring baffle 15 is detachably fixed on the edge of the base 22. The inner wall of the outer ring baffle 15 is provided with a plurality of limiting protrusions 21, and in this embodiment, the limiting protrusions 21 are trapezoidal protrusions, so as to prevent the rock sample in the lower containing ring 16 from sliding. The bottom surface of the lower shear box 4 is provided with a plurality of grooves 18, wherein step grooves are selected, the grooves 18 can be matched with the boss 13 on the upper end surface of the first base 1, and the lower shear box 4 can be detachably fixed on the first base 1.
The middle part of the upper shearing box 3 is provided with an upper containing ring, the shape of the upper containing ring is the same as that of the lower containing ring, the upper shearing box 3 is located on the lower shearing box 4, the upper containing ring and the lower containing ring 16 are aligned up and down, the upper shearing box 3 is internally provided with a pore water pressure sensor 35, the pore water pressure sensor 35 is arranged on the connecting end face of the upper shearing box 3 and the lower shearing box 4, the upper containing ring is arranged below the pressing block 6, the lower containing ring 16 is used for containing rock samples, the upper containing ring is used for containing the soil samples, the soil samples can be used after being uniformly stirred by the stirrer 9, an iron disc 42 can be placed at the bottom of the inner ring of the lower shearing box for increasing the weight of the lower shearing box, a rubber ring 36 is sleeved at the joint of the lower shearing box 4 and the upper shearing box 3, the rubber ring 36 prevents the soil samples of the upper shearing box 3 from leaking out, and the sliding force arm 5 slides downwards to enable the pressing block 6 to be pressed against the rock samples and the rock samples to form the upper shearing box 12, and the soil samples can be cut into the rock samples by the upper shearing box 12.
Referring to fig. 1, the ring shear apparatus includes a second base 23, a second frame 25 and a rotary platform 24, the second frame 25 is a rectangular frame, lower ends of left and right sides of the second frame 25 are fixed on the second base 23, an oil pressure chamber 26 is disposed in the middle of an upper side of the second frame 25, the oil pressure chamber 26 is fixed on an upper portion of the second frame 25 through a fixing rod 27, the oil pressure chamber 26 is connected with a downwardly extending telescopic column 28, the oil pressure chamber 26 can drive the telescopic column 28 to stretch in a vertical direction, a lower end of the telescopic column 28 is connected with a pressure transmitting ring 29, a pressure sensor 30 is disposed at a joint of the telescopic column 28 and the pressure transmitting ring 29, a connecting arm 33 horizontally disposed is disposed in a middle of the second frame 25, the middle of the connecting arm 33 traverses and is fixedly connected with the pressure transmitting ring 29, two ends of the connecting arm 33 are respectively slidably connected with the left and right sides of the second frame 25, and one end of the connecting arm is provided with a distance measuring sensor 34, and the distance measuring sensor 34 is used for monitoring a descending distance of the pressure transmitting ring 29.
The middle part of the second base 23 is provided with a bearing 38, the bearing 38 is vertically arranged, the middle part of the lower end surface of the rotary platform 24 is connected with the bearing 38, the edge of the lower end surface of the rotary platform 24 is provided with a roller 39, the lower part of the roller 39 contacts the upper end surface of the second base 23, so that the upper part of the second base 23 is rotationally connected with the rotary platform 24, and the roller 39 reduces the resistance of the rotary platform 24 to rotation. An angle sensor 37 is disposed on the left or right of the second frame 25, and the angle sensor 37 is aligned with the rotating platform 24, so as to monitor the rotation angle of the rotating platform 24. The rotary platform 24 is also provided with a boss 13, and the boss 13 is also a step boss and is used for being matched with the groove 18 at the bottom of the lower shear box 4 to fix the lower shear box 4, so that the upper end of the rotary platform 24 is detachably connected with the lower shear box 4.
When the shear test is performed, compacted rock and soil samples are already present in the lower shear box 4 and the upper shear box 3, and when the lower shear box 4 is fixed on the rotary platform 24, the rock and soil samples in the lower containing ring 16 and the upper containing ring are positioned below the pressure transmission ring plate 29, a water filtering net 31 is arranged at an upper port of the upper containing ring of the upper shear box 3, the pressure transmission ring plate 29 compresses the water filtering net 31, a water outlet is arranged on the pressure transmission ring plate 29, a water outlet pipe 32 is externally connected with the water outlet pipe 32, and the water outlet pipe 32 is used for discharging water extruded by the pressed soil samples.
The computer 40 is respectively connected with the pressure sensor 30, the pore water pressure sensor 35, the distance measurement sensor 34 and the angle sensor 37 through data transmission lines 41, the oil pressure chamber 26 drives the telescopic upright post 28 to apply axial pressure to the pressure transmission ring plate 29 during test, the rotating platform 24 is rotated to apply circumferential shearing force to the rock and soil sample, the pressure sensor 30 monitors the axial pressure, the rotating platform 24 is rotated to apply circumferential shearing force to the rock and soil sample, the pore water pressure sensor 35 monitors pore water pressure in the rock and soil sample, the distance measurement sensor 34 monitors the descending distance of the pressure transmission ring plate 29, the angle sensor 37 monitors the rotation angle of the rotating platform 24, the computer 40 receives monitoring data of the sensors so that a worker can timely adjust the oil pressure system, and the computer 40 can be connected with the oil pressure chamber 26 to control the magnitude of the axial pressure applied by the oil pressure chamber 26.
The application is suitable for a soil-rock contact surface ring shear tester test system, which has the functions of sample preparation and ring shear test, and during sample preparation, firstly, rock samples are placed in a lower containing ring 16 of a lower shear box 4, the soil samples are placed on an arc stirring table on a pressing block 6, uniformly stirred by a stirrer 9, then an upper shear box 3 is located and fixed on the lower shear box 4, uniform soil samples are placed in an upper containing ring of the upper shear box 3, the pressing block 6 is controlled to be driven by an oil press 7 to compact the uniform soil samples, and the upper shear box 3 and the lower shear box 4 are used as containers for storing the rock soil samples; during the ring shear test, the upper shear box 3 and the lower shear box 4 are moved onto the rotary platform 24 together, the grooves 18 at the bottom of the lower shear box 4 are matched with the bosses 13 on the rotary platform 24 to enable the upper shear box and the lower shear box to be stably connected with each other and synchronously rotate, the oil pressure chamber 26 is controlled to drive the telescopic upright post 26 to apply axial pressure to the pressure transmission ring plate 29, the pressure transmission ring plate 29 is used for pressing down the rock sample, the rotary platform 24 is used for rotating to drive the lower shear box 4 to rotate, and circumferential shear force is generated on the joint surface of the rock sample and the soil sample of the rock sample, so that the ring shear test is started, the pressure sensor 30 monitors the axial pressure, namely the axial pressure born by the rock sample, the pore water pressure sensor 35 monitors pore water pressure in the rock sample, the distance sensor 34 monitors the descending distance of the pressure transmission ring plate 29, and the angle sensor 37 monitors the rotation angle of the rotary platform 24.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the claimed application.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.
Claims (8)
1. The utility model provides a be applicable to earth rock contact surface ring shear apparatus test system which characterized in that: comprises a rock sample preparation instrument and a ring shear instrument,
the rock and soil sample preparation instrument comprises a first base, a first frame, an upper shearing box and a lower shearing box, wherein the first frame is fixed on the first base, a sliding force arm capable of sliding up and down is arranged in the middle of the first frame, a pressing block is arranged on the sliding force arm, the bottom of the lower shearing box is detachably fixed on the first base, the upper shearing box is located on the lower shearing box, a lower containing ring is arranged in the lower shearing box, an upper containing ring is arranged in the upper shearing box, the upper containing ring and the lower containing ring are vertically aligned, the upper containing ring is arranged below the pressing block, the lower containing ring is used for containing a rock sample, and the sliding force arm slides downwards to enable the pressing block to press the soil sample and the rock sample to form a rock and soil sample;
the annular shear apparatus comprises a second base, a second frame and a rotary platform, wherein the second frame is fixed on the second base, the upper part of the second base is rotationally connected with the rotary platform, an oil pressure chamber is arranged on the upper part of the second frame, the oil pressure chamber is connected with a downwardly extending telescopic upright post, the lower end of the telescopic upright post is connected with a pressure transmission annular plate, a pressure sensor is arranged at the joint of the telescopic upright post and the pressure transmission annular plate, the upper end of the rotary platform is detachably connected with a lower shear box, so that a rock-soil sample in the lower accommodating ring and the upper accommodating ring is arranged below the pressure transmission annular plate, a pore water pressure sensor is arranged in the upper shear box, the oil pressure chamber drives the telescopic upright post to apply axial pressure to the pressure transmission annular plate, the pressure sensor is used for monitoring the axial pressure, the rotary platform rotates to apply annular shear force to the rock-soil sample, and the water pressure sensor is used for monitoring pore water pressure in the rock-soil sample;
the bottom surface of the lower shearing box is provided with a plurality of grooves, the upper end surface of the first base and the upper end surface of the rotary platform are respectively provided with a plurality of bosses, and the bosses are matched with the grooves, so that the lower shearing box can be detachably fixed on the first base or the rotary platform;
the system also comprises a computer, wherein the computer is connected with the pressure sensor and the pore water pressure sensor and is used for receiving monitoring data of the pressure sensor and the pore water pressure sensor.
2. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the angle sensor is arranged on the second frame and used for monitoring the rotation angle of the rotary platform, a connecting force arm horizontally arranged is arranged in the middle of the second frame and is transversely and fixedly connected with the pressure transmission ring plate, two ends of the connecting force arm are respectively and slidably connected with two sides of the second frame, one end of the connecting force arm is provided with a ranging sensor, and the ranging sensor is used for monitoring the descending distance of the pressure transmission ring plate.
3. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the middle part of the second base is provided with a bearing, the middle part of the lower end surface of the rotary platform is connected with the bearing, and the edge of the lower end surface of the rotary platform is provided with a roller lower part which contacts the upper end surface of the second base.
4. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the rubber ring is sleeved at the joint of the lower shearing box and the upper shearing box, and the containing ring of the upper shearing box is provided with a drain pipe.
5. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the lower shearing box comprises a base and an outer ring baffle, an inner ring is arranged in the middle of the base, the outer ring baffle is arranged on the periphery of the inner ring, a lower containing ring is formed between the outer ring baffle and the inner ring, and the outer ring baffle is detachably fixed on the edge of the base.
6. A system for testing a land rock interface ring shear apparatus as defined in claim 5, wherein: and a plurality of limiting protrusions are arranged on the inner wall of the outer ring baffle.
7. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the briquetting up end is the arc stirring platform, the top of briquetting is equipped with hydraulic press, agitator and agitator arm support, the hydraulic press with the agitator arm support is fixed in first frame upper portion, just the hydraulic press with the agitator set up in inside the agitator arm support, the rotatory arm of force upper end is connected to the hydraulic press lower part, the rotatory arm of force lower extreme is connected the agitator, the agitator arm support lower extreme covers the briquetting up end, the arc stirring platform is used for placing the soil sample, the hydraulic press drive the agitator stirring the soil sample.
8. A system for testing a ring shear apparatus for use in a land and rock interface as defined in claim 1, wherein: the first base is provided with a slidable cutter, and the cutter is used for cutting and leveling the upper end face of the rock soil sample.
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| CN201910269926.3A CN110044726B (en) | 2019-04-04 | 2019-04-04 | Be applicable to earth rock contact surface ring shear apparatus test system |
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| CN110044726B true CN110044726B (en) | 2023-10-13 |
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| CN112683694A (en) * | 2020-12-18 | 2021-04-20 | 西安建筑科技大学 | Device capable of performing seepage and circumferential shearing on rock and soil sample and test method |
| CN113237711B (en) * | 2021-04-12 | 2023-03-21 | 中国电建集团华东勘测设计研究院有限公司 | Method for manufacturing sample of barrel-shaped structural surface and externally tangent and internally-blocked barrel-shaped shearing instrument |
| CN113218781B (en) * | 2021-04-12 | 2022-06-28 | 中国电建集团华东勘测设计研究院有限公司 | Soil rock contact surface mechanics tubbiness shear test appearance that combines 3D printing technique |
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