CN103994969B - Soil and the contact performance test instrument of works and test method under waterpower acting in conjunction - Google Patents
Soil and the contact performance test instrument of works and test method under waterpower acting in conjunction Download PDFInfo
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Abstract
Soil and the contact performance test instrument of works and test method under a kind of waterpower acting in conjunction.In dam operational process, storehouse, upstream water along the surface of contact generation seepage flow between soil and works, and can form certain effect of water pressure on the contact surface.Shear stress under the effect of water pressure on surface of contact and shearing strength can change, and the mechanical response being not only different from the soil body but also being different from structure occurs, and these responses finally can cause negative effect in various degree to engineering structure.This test instrument improves conventional direct shear apparatus, primarily of cutting box, vertical loading motor, level to parts compositions such as loading motor, water pressure control system, data acquisition system (DAS), self-reaction force framves, and simple structure, easy to use.Soil and the contact shear test of works can be carried out under different hydraulics, study the contact performance of soil and works under different hydraulics.
Description
Technical field
The invention belongs to the technical field of testing tool and method, specifically relate to contact performance test instrument and the test method of soil and works under a kind of waterpower acting in conjunction.
Background technology
According to Dams in China council statistics, ended for the end of the year 2003, the 15 meters high above dams made of building together in worldwide are 41418, wherein earth and rockfill dam 33958, account for 82.7% of sum.The nearly more than ten years, along with Large Copacity, multi-functional, the development of high-level efficiency construction machinery and the progress of Geotechnical Engineering research technique and computing technique, the earth-rock works of China obtains large development, by the end of the year 2005, more than 30 meters, China is built has 4860 building dam, earth and rockfill dam 2865, accounts for 59%.The contact problems of soil and works will inevitably be run in these earth and rockfill dam processs of construction.Soil and structure interface characteristic research are one of the important topics in building and ground field always, are the prerequisites solving Soil-structure interaction model.Because research relates to the many aspects of soil mechanics and foundation works, so have very large difficulty.The method of testing of research surface of contact characteristic conventional at present has (1) large-scale surface of contact direct shear apparatus, this equipment is applicable to concrete material, the internal friction characteristic of the multiple materials such as soil stone, is particularly suitable between different materials as concrete material and native stone, the mechanical characteristic of braid surface of contact and the research of deformation mechanism.Its shortcoming to consider the impact of water pressure on contact face mechanical property and deformation mechanism; (2) cyclic load large-scale surface of contact characteristic direct shear apparatus, the advantage of this equipment is the cyclic load that can apply different frequency and amplitude, and shortcoming involves great expense, operation inconvenience; (3) a kind of experimental provision measuring the soil body and structure Interface seepage scour characteristic, the advantage of this equipment is to be parallel to and to carry out seepage scour test perpendicular on the direction of surface of contact to the soil body, for the impervious stream scouring capability of analytical soil sample under different stress condition provides infrastest data, shortcoming does not consider that soil deformation is on the impact of contact seepage scour under shear stress condition.
Summary of the invention
The object of the present invention is to provide contact performance test instrument and the test method of soil and works under a kind of waterpower acting in conjunction, this equipment can carry out soil and the contact shear test of works under different water pressure condition, studies the shear property of surface of contact under different hydraulics.
Object of the present invention is achieved through the following technical solutions:
The contact performance test instrument of soil and concrete structure under a kind of waterpower acting in conjunction, it is characterized in that this test instrument is by rigidity transmission rod 1, increased pressure board 2, roller 3, top cover 4, cutting box 5, concrete structure test specimen 6, permeable stone 7, stiff baseplate 8, rubber tube 9, water pressure control system 10, level is to displacement transducer 11, rigid connecting rod 12, level is to pull pressure sensor 13, level is to loading motor 14, vertical loading motor 15, vertical displacement sensor 16, vertical pressure sensor 17, self-reaction force frame 18, data acquisition system (DAS) 19, motor servo controller 20, made by detachable roller 21, wherein stiff baseplate 8, level is fixedly mounted on self-reaction force frame 18 with bolt to loading motor 14 and vertical loading motor 15 respectively, level is connected with motor servo controller 20 with wire to loading motor 14 respectively with vertical loading motor 15, concrete structure test specimen 6 is placed on stiff baseplate 8, a cavity is set in concrete structure test specimen 6, fill up permeable stone 7, permeable stone 7 top concrete structure 6 test specimen is furnished with limbers, one end of rubber tube 9 connects permeable stone, and through stiff baseplate 8, the other end is connected to water pressure control system 10, cutting box 5 is placed on concrete structure test specimen 6, and connect level to pull pressure sensor 13 by rigid connecting rod 12, and then connect level to loading motor 14, detachable roller 21 is provided with between cutting box 5 both sides and concrete structure test specimen 6, cutting box 5 is placed top cover 4, roller 3 is installed between top cover 4 and increased pressure board 2, be threaded connection between increased pressure board 2 and rigidity transmission rod 1, increased pressure board 2 upper surface contacts with the working end of vertical displacement sensor 16, vertical pressure sensor 17 is fixed on vertical loading motor 15, level is fixed by bolts on self-reaction force frame 18 to displacement transducer 11, level is to pull pressure sensor 13, level is to displacement transducer 11, vertical pressure sensor 17 and vertical displacement sensor 16 are connected with data acquisition system (DAS) 19 with data line respectively.
Under described a kind of waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure, is characterized in that arranging a square cavity in described concrete structure test specimen 6, fill up permeable stone 7 in cavity.
Under described a kind of waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure, is characterized in that being evenly arranged limbers in described permeable stone 7 top concrete structure test specimen 6, straight-through concrete structure test specimen 6 upper surface.
Under described waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure carry out the method tested, the soil that it is characterized in that not considering that water pressure affects and concrete structure contact surface shearing test method step as follows:
A () prepares sample, the soil sample of known quality, density and water percentage loaded in cutting box 5;
B () regulates test instrument, place top cover 4, load onto increased pressure board 2, rigidity transmission rod 1 and level to pull pressure sensor 13 and vertical pressure sensor 17, the working end of vertical pressure sensor 17 is just contacted with rigidity transmission rod 1 top;
C () regulates data acquisition system (DAS), the level that installs is to displacement transducer 11 and vertical displacement sensor 16, level is contacted to the active section of displacement transducer 11 with cutting box 5 right flank, the working end of vertical displacement sensor 16 contacts with increased pressure board 2 end face, connect motor servo controller 20 and data acquisition system (DAS) 19, and check whether it normally works;
(d) load application, starter motor servo controller 20, uses vertical loading motor 15 to apply vertical load, experimentally requirement, setting load, uses level to apply horizontal shear to loading motor 14, and setting level is to shear rate and maximum shear displacement;
E () data record, in process of the test, records horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) 19;
F () off-test, when testing shear displacemant and reaching maximum shear displacement, test stops.
Under described waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure carry out the method tested, it is characterized in that considering the soil of water pressure impact and concrete structure contact surface shearing test method step as follows:
A () prepares sample, the soil sample of known quality, density and water percentage loaded in cutting box 5;
B () regulates test instrument, place top cover 4, load onto increased pressure board 2, rigidity transmission rod 1 and level to pull pressure sensor 13 and vertical pressure sensor 17, the working end of vertical pressure sensor 17 is just contacted with rigidity transmission rod 1 top;
C () regulates data acquisition system (DAS), the level that installs is to displacement transducer 11 and vertical displacement sensor 16, level is contacted to the active section of displacement transducer 11 with cutting box 5 right flank, the working end of vertical displacement sensor 16 contacts with increased pressure board 2 end face, connect motor servo controller 20 and data acquisition system (DAS) 19, and check whether it normally works;
D () applies water pressure, start water pressure control system 10, setting head value, water is by rubber tube 9, permeable stone 7, flow into limbers, and then make hydraulic pressure be evenly distributed on soil with on the surface of contact of concrete structure test specimen 6, ensure that the water pressure on surface of contact maintains setting value;
(e) load application, starter motor servo controller 20, uses vertical loading motor 15 to apply vertical load, experimentally requirement, setting load, uses level to apply horizontal shear to loading motor 14, and setting level is to shear rate and maximum shear displacement;
F () data record, keeps water pressure constant in process of the test, record horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) 19;
G () off-test, when testing shear displacemant and reaching maximum shear displacement, test stops.
By above technical scheme, following beneficial effect can be realized:
(1) can kinds of experiments be carried out, both can carry out common soil and the contact surface shearing test of works, the dynamic soil-sturcture interaction shear test of water pressure condition can be carried out again;
(2) be provided with roller between increased pressure board and top cover, between cutting box both sides and works, be also provided with detachable roller, reduce the error rubbing and bring;
(3), when using this equipment to test, load applies and data record completes automatically by computing machine, easy to use, quick and safe.
Accompanying drawing explanation
The contact performance test instrument structural representation of soil and concrete structure under a kind of waterpower acting in conjunction of Fig. 1
Fig. 2 cutting box vertical view of the present invention
Fig. 3 permeable stone distribution plan of the present invention
Fig. 4 cutting box and concrete structure test specimen side view
Reference numeral: 1-rigidity transmission rod, 2-increased pressure board, 3-roller, 4-top cover, 5-cutting box, 6-concrete structure test specimen, 7-permeable stone, 8-stiff baseplate, 9-rubber tube, 10-water pressure control system, 11-level is to displacement transducer, 12-rigid connecting rod, 13-level to pull pressure sensor, 14-level to loading motor, the vertical loading motor of 15-, 16-vertical displacement sensor, 17-vertical pressure sensor, 18-self-reaction force frame, 19-data acquisition system (DAS), 20-motor servo controller, the detachable roller of 21-.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated
Embodiment 1: the contact performance test instrument of soil and concrete structure under a kind of waterpower acting in conjunction
The contact performance test instrument of soil and concrete structure under a kind of waterpower acting in conjunction as shown in Figure 1.It is characterized in that this test instrument is by rigidity transmission rod 1, increased pressure board 2, roller 3, top cover 4, cutting box 5, concrete structure test specimen 6, permeable stone 7, stiff baseplate 8, rubber tube 9, water pressure control system 10, level is to displacement transducer 11, rigid connecting rod 12, level is to pull pressure sensor 13, level is to loading motor 14, vertical loading motor 15, vertical displacement sensor 16, vertical pressure sensor 17, self-reaction force frame 18, data acquisition system (DAS) 19, motor servo controller 20, made by detachable roller 21, wherein stiff baseplate 8, level is fixedly mounted on self-reaction force frame 18 with bolt to loading motor 14 and vertical loading motor 15 respectively, level is connected with motor servo controller 20 with wire to loading motor 14 respectively with vertical loading motor 15, concrete structure test specimen 6 is placed on stiff baseplate 8, a cavity is set in concrete structure test specimen 6, fill up permeable stone 7, permeable stone 7 top concrete structure test specimen 6 is furnished with limbers, one end of rubber tube 9 connects permeable stone, and through stiff baseplate 8, the other end is connected to water pressure control system 10, cutting box 5 is placed on concrete structure test specimen 6, and connect level to pull pressure sensor 13 by rigid connecting rod 12, and then connect level to loading motor 14, detachable roller 21 is provided with between cutting box 5 both sides and concrete structure test specimen 6, cutting box 5 is placed top cover 4, roller 3 is installed between top cover 4 and increased pressure board 2, be threaded connection between increased pressure board 2 and rigidity transmission rod 1, increased pressure board 2 upper surface contacts with the working end of vertical displacement sensor 16, vertical pressure sensor 17 is fixed on vertical loading motor 15, level is fixed by bolts on self-reaction force frame 18 to displacement transducer 11, level is to pull pressure sensor 13, level is to displacement transducer 11, vertical pressure sensor 17 and vertical displacement sensor 16 are connected with data acquisition system (DAS) 19 with data line respectively.
Under described a kind of waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure, is characterized in that arranging a square cavity in described concrete structure test specimen 6, fill up permeable stone 7 in cavity.
Under described a kind of waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure, is characterized in that being evenly arranged limbers in described permeable stone 7 top concrete structure test specimen 6, straight-through concrete structure test specimen 6 upper surface.
Wherein:
(1) the stainless steel column that rigidity transmission rod 1 is 30mm by diameter is made, and is threaded connection increased pressure board 2;
(2) increased pressure board 2 is made up of steel plate, thick 25mm, long 200mm, wide 200mm;
(3) roller 3 is cut into by steel column, diameter 20mm, high 20mm, and roller 3 is fixed on top cover 4;
(4) top cover 4 is made up of steel plate, thick 25mm, long 200mm, wide 200mm;
(5) cutting box 5 Plate Welding is made, and housing is the square of length of side 230mm, and inside casing is the square of length of side 200mm, the thick 15mm of frame, and frame height 100mm, leaves certain space between cutting box 5 and top cover 4, to ensure that top cover 4 can not touch cutting box;
(6) concrete structure test specimen 6 is formed by concreting, size: long 350mm × wide 350mm × high 100mm, internal cavities size: long 200mm × wide 200mm × high 10mm, the permeable stone 7 of 25 block length 40mm × wide 40mm × high 10mm is filled with in cavity, just fill up cavity, the test specimen distribution of permeable stone 7 top arranges 4 × 4 circular limberss, and each limbers diameter is 3mm;
(7) stiff baseplate 8 is made up of steel plate, long 500mm × wide 400mm × thick 30mm, has the projection of long 400mm × wide 25mm × high 10mm, blocks concrete structure test specimen 6, prevent it from sliding on the right side of base plate;
(8) rubber tube 9 is connected to permeable stone 7 and water pressure control system 10, and its section diameter stretched in works is 20mm, and the section diameter stretching out stiff baseplate is 10mm;
(9) water pressure control system 10 can adopt model to be TCK-1 type triaxial test measuring and controlling instrument;
(10) the stainless steel column that rigid connecting rod 12 is 40mm by diameter is made, and left end is fixed by screws in cutting box 5, and right-hand member is provided with screw thread and is connected to pull pressure sensor 13 with level;
(11) level is BLR-1 type LOAD CELLS to pull pressure sensor 13 and vertical pressure sensor 17, maximum capacity 10t, NH accuracy class D0.2;
(12) level is the Mitsubishi Electric of power 750W to loading motor 14 and vertical loading motor 15;
(13) level is TKA-50-11 direct slide conductive plastic potentiometer to displacement transducer 11 and vertical displacement sensor 16, resistance 5K ohm, independent linearity 0.1%;
(14) self-reaction force frame 18 is welded by 12 blocks of angle steel and makes, wherein upper and lower surface is rectangle, with 2 block length 1.2m, the angle steel welding of wide 0.6m is made, the angle steel of vertical use 4 long 1.2m welds with two rectangular boxes above, then is welded on respectively 8 angles reinforce by 8 pieces of triangular steel plate and makes;
(15) data acquisition system (DAS) 19, is made up of computing machine, TKA loading/displacement data collector;
(16) motor servo controller 20 is ZJ-300 type test specimen cutting system;
(17) detachable roller 21, long 250mm × wide 20mm × high 3mm.
Embodiment 2: under described waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure carry out the method tested, the soil that it is characterized in that not considering that water pressure affects and concrete structure contact surface shearing test method step as follows:
(1) prepare sample, be the quality 7.64kg of 9.5% by water percentage, density is 1.91g/cm
3soil sample load in cutting box 5;
(2) regulate test instrument, place top cover 4, load onto increased pressure board 2, rigidity transmission rod 1 and level to pull pressure sensor 13 and vertical pressure sensor 17, the working end of vertical pressure sensor 17 is just contacted with rigidity transmission rod 1 top;
(3) data acquisition system (DAS) is regulated, the level that installs is to displacement transducer 11 and vertical displacement sensor 16, level is contacted to the active section of displacement transducer 11 with cutting box 5 right flank, the working end of vertical displacement sensor 16 contacts with increased pressure board 2 end face, connect motor servo controller 20 and data acquisition system (DAS) 19, and check whether it normally works;
(4) load application, starter motor servo controller 20, vertical loading motor 15 is used to apply vertical load, experimentally requirement, setting load is 40kN, use level to apply horizontal shear to loading motor 14, setting level is 1mm/min to shear rate, and maximum shear displacement is 15mm;
(5) data record, in process of the test, records horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) 19;
(6) off-test, when testing shear displacemant and reaching 15mm, test stops.
Embodiment 3: under described waterpower acting in conjunction, soil and the contact performance test instrument of concrete structure carry out the method tested, it is characterized in that considering the soil of water pressure impact and concrete structure contact surface shearing test method step as follows:
(1) (2) (3) are with embodiment 2;
(4) apply water pressure, start water pressure control system 10, setting head value is 100kPa, water is by rubber tube 9, permeable stone 7, flow into limbers, and then make hydraulic pressure be distributed in soil with on the surface of contact of concrete structure test specimen 6, ensure that the water pressure on surface of contact maintains 100kPa;
(5) load application, starter motor servo controller 20, vertical loading motor 15 is used to apply vertical load, experimentally requirement, setting load is 40kN, use level to apply horizontal shear to loading motor 14, setting level is 1mm/min to shear rate, and maximum shear displacement is 15mm;
(6) data record, keeps water pressure constant in process of the test, record horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) 19;
(7) off-test, when testing shear displacemant and reaching 15mm, test stops.
Claims (5)
1. soil and the contact performance test instrument of concrete structure under a waterpower acting in conjunction, it is characterized in that this test instrument is by rigidity transmission rod (1), increased pressure board (2), roller (3), top cover (4), cutting box (5), concrete structure test specimen (6), permeable stone (7), stiff baseplate (8), rubber tube (9), water pressure control system (10), level is to displacement transducer (11), rigid connecting rod (12), level is to pull pressure sensor (13), level is to loading motor (14), vertical loading motor (15), vertical displacement sensor (16), vertical pressure sensor (17), self-reaction force frame (18), data acquisition system (DAS) (19), motor servo controller (20), made by detachable roller (21), wherein stiff baseplate (8), level is fixedly mounted on self-reaction force frame (18) with bolt to loading motor (14) and vertical loading motor (15) respectively, level uses wire to be connected with motor servo controller (20) to loading motor (14) and vertical loading motor (15) respectively, concrete structure test specimen (6) is placed on stiff baseplate (8), a cavity is set in concrete structure test specimen (6), fill up permeable stone (7), permeable stone (7) top concrete structure test specimen (6) is furnished with limbers, one end of rubber tube (9) connects permeable stone, and through stiff baseplate (8), the other end is connected to water pressure control system (10), cutting box (5) is placed on concrete structure test specimen (6), and connect level to pull pressure sensor (13) by rigid connecting rod (12), and then connect level to loading motor (14), detachable roller (21) is provided with between cutting box (5) both sides and concrete structure test specimen (6), cutting box (5) is placed top cover (4), roller (3) is installed between top cover (4) and increased pressure board (2), be threaded connection between increased pressure board (2) and rigidity transmission rod (1), increased pressure board (2) upper surface contacts with the working end of vertical displacement sensor (16), vertical pressure sensor (17) is fixed on vertical loading motor (15), level is fixed by bolts on self-reaction force frame (18) to displacement transducer (11), level is to pull pressure sensor (13), level is to displacement transducer (11), vertical pressure sensor (17) and vertical displacement sensor (16) use data line to be connected with data acquisition system (DAS) (19) respectively.
2. soil and the contact performance test instrument of concrete structure under a kind of waterpower acting in conjunction according to claim 1, it is characterized in that arranging a square cavity in described concrete structure test specimen (6), in cavity, fill up permeable stone (7).
3. soil and the contact performance test instrument of concrete structure under a kind of waterpower acting in conjunction according to claim 1, it is characterized in that being evenly arranged limbers in described permeable stone (7) top concrete structure test specimen (6), straight-through concrete structure test specimen (6) upper surface.
4. use soil and the contact performance test instrument of concrete structure under the waterpower acting in conjunction described in claim 1 to carry out the method tested, the soil that it is characterized in that not considering that water pressure affects and concrete structure contact surface shearing test method step as follows:
A () prepares sample, the soil sample of known quality, density and water percentage loaded in cutting box (5);
B () regulates test instrument, place top cover (4), load onto increased pressure board (2), rigidity transmission rod (1) and level to pull pressure sensor (13) and vertical pressure sensor (17), the working end of vertical pressure sensor (17) is just contacted with rigidity transmission rod (1) top;
C () regulates data acquisition system (DAS), the level that installs is to displacement transducer (11) and vertical displacement sensor (16), level is contacted to the active section of displacement transducer (11) with cutting box (5) right flank, the working end of vertical displacement sensor (16) contacts with increased pressure board (2) end face, connect motor servo controller (20) and data acquisition system (DAS) (19), and check whether it normally works;
(d) load application, starter motor servo controller (20), vertical loading motor (15) is used to apply vertical load, experimentally requirement, setting load, use level to apply horizontal shear to loading motor (14), setting level is to shear rate and maximum shear displacement;
E () data record, in process of the test, records horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) (19);
F () off-test, when testing shear displacemant and reaching maximum shear displacement, test stops.
5. use soil and the contact performance test instrument of concrete structure under the waterpower acting in conjunction described in claim 1 to carry out the method tested, it is characterized in that considering the soil of water pressure impact and concrete structure contact surface shearing test method step as follows:
A () prepares sample, the soil sample of known quality, density and water percentage loaded in cutting box (5);
B () regulates test instrument, place top cover (4), load onto increased pressure board (2), rigidity transmission rod (1) and level to pull pressure sensor (13) and vertical pressure sensor (17), the working end of vertical pressure sensor (17) is just contacted with rigidity transmission rod (1) top;
C () regulates data acquisition system (DAS), the level that installs is to displacement transducer (11) and vertical displacement sensor (16), level is contacted to the active section of displacement transducer (11) with cutting box (5) right flank, the working end of vertical displacement sensor (16) contacts with increased pressure board (2) end face, connect motor servo controller (20) and data acquisition system (DAS) (19), and check whether it normally works;
D () applies water pressure, start water pressure control system (10), setting head value, water is by rubber tube (9), permeable stone (7), flow into limbers, and then make hydraulic pressure be evenly distributed on soil with on the surface of contact of concrete structure test specimen (6), ensure that the water pressure on surface of contact maintains setting value;
(e) load application, starter motor servo controller (20), vertical loading motor (15) is used to apply vertical load, experimentally requirement, setting load, use level to apply horizontal shear to loading motor (14), setting level is to shear rate and maximum shear displacement;
F () data record, keeps water pressure constant in process of the test, record horizontal shearing stress, horizontal shift and vertical displacement curve over time by data acquisition system (DAS) (19);
G () off-test, when testing shear displacemant and reaching maximum shear displacement, test stops.
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| CN104502270B (en) * | 2014-12-22 | 2016-11-16 | 长安大学 | A kind of direct shear apparatus measuring soil-muscle interfacial friction factor and assay method |
| CN105300876B (en) * | 2015-11-07 | 2017-10-31 | 北京工业大学 | Self-balancing type buried pipeline and soil body interaction experimental rig |
| CN105699257B (en) * | 2016-04-18 | 2018-09-04 | 山东大学 | A kind of experimental rig and its test method being suitable for native stone contact surface seepage failure |
| CN106092209B (en) * | 2016-08-05 | 2019-11-05 | 哈尔滨工业大学（威海） | A kind of seal profile rigidity and contact performance comprehensive test platform |
| CN106370589B (en) * | 2016-08-29 | 2018-10-30 | 西南交通大学 | The device and test method of test early age spray concrete and rock cement plane shear strength |
| CN106404661B (en) * | 2016-11-15 | 2023-08-15 | 沈阳建筑大学 | Indoor measuring device for frictional force between soil body and structural object and using method thereof |
| CN106979900B (en) * | 2017-04-17 | 2023-11-07 | 山东大学 | Soil and structure interface fluid-solid coupling effect tester |
| CN108375504B (en) * | 2018-01-25 | 2020-12-15 | 河海大学 | Anchorage type reaction frame test device suitable for underground space structure |
| CN110160891B (en) * | 2019-06-28 | 2020-03-13 | 河北工业大学 | Shearing seepage coupling test device for accumulation body-rock interface |
| CN112730024B (en) * | 2020-12-07 | 2022-05-17 | 川南城际铁路有限责任公司 | Integrated device for testing compression and shearing performance of rock material |
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| JPH1164202A (en) * | 1997-08-21 | 1999-03-05 | Fujita Corp | Method and device for testing shear strength |
| CN1296696C (en) * | 2005-01-24 | 2007-01-24 | 东南大学 | Unsaturated soil solidifying and water characteristic curve combining tester and testing method |
| CN101329236A (en) * | 2007-06-19 | 2008-12-24 | 张晶 | Circulation load application shearing instrument for observing mechanics characteristic of soil contact face and structural part |
| CN101561378B (en) * | 2009-05-22 | 2011-01-05 | 清华大学 | Tester for testing seepage and scour characteristics of contact surface of soil body and structure |
| CN101726443A (en) * | 2009-12-22 | 2010-06-09 | 上海大学 | Large-scale direct shear apparatus between geo-technic synthetic materials and between geo-technic synthetic materials and earth |
| CN102095681A (en) * | 2010-12-24 | 2011-06-15 | 江西省交通科学研究院 | Instrument for detecting interlaminar cohesive shear strength of road surface after being soaked |
| KR101155592B1 (en) * | 2011-11-08 | 2012-06-19 | 한국지질자원연구원 | Ring shear apparatus |
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