CN104034607A - Large-sized multifunctional geosynthetic material interface power direct shear apparatus - Google Patents
Large-sized multifunctional geosynthetic material interface power direct shear apparatus Download PDFInfo
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- CN104034607A CN104034607A CN201410243598.7A CN201410243598A CN104034607A CN 104034607 A CN104034607 A CN 104034607A CN 201410243598 A CN201410243598 A CN 201410243598A CN 104034607 A CN104034607 A CN 104034607A
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Abstract
The invention belongs to the technical field of geotechnical engineering, and particularly relates to a large-sized multifunctional geosynthetic material interface power direct shear apparatus which comprises a base, front and rear fixed support frames, horizontal and longitudinal hanging beams, a hanging rod, a vibration exciter ( an oil cylinder, a supporting seat, a dowel bar and a bayonet), a vertical pressure gage, a top plate, a support column, a loading plate, a lateral confining frame, a tested soil sample, a geosynthetic material, a withdrawing plate, a steel binding group, a horizontal base, a servo system, an oil hydraulic system and a computer control system, wherein the vibration exciter is fixed by the front and rear fixed support frames and the hanging beam; a frame is formed through the top plate, and the vertical pressure gage and the loading plate are fixed by the support column and the horizontal base; a shear box is formed through other parts. According to the large-sized multifunctional geosynthetic material interface power direct shear apparatus, the vibration of the vibration exciter and the withdrawing plate is controlled through the computer control system and the oil hydraulic system, and the stress strain index is monitored through the servo system. The large-sized multifunctional geosynthetic material interface power direct shear apparatus disclosed by the invention can be used for measuring the power shearing characteristic of a geosynthetic material interface under the action of any vibration waveform and can realize other test purposes by measuring multiple interfaces by replacing parts.
Description
Technical field
The invention belongs to Geotechnical Engineering field, be specifically related to a kind of large-sized multifunction geosynthetics interface motivation direct shear apparatus, can realize multiple earth working material interface motivation direct shear test.
Background technology
Geosynthetics is to take the manufactured goods that manually synthetic polymkeric substance (as plastics, chemical fibre, synthetic rubber etc.) is raw material, and China < < Technical code for application of geosynthetics GB50290-98 > > is divided into geosynthetics the types such as geotextile, geosynthetics, geotechnological special material and earthwork composite material, geonet, glass fiber net, geotechnique's pad.Geosynthetics be widely used in refuse landfill and low buildings foundation bottom as liner system, play the effect that isolation pollutant leaks, when earthquake disaster occurs, geosynthetics composite pad system can play complicated function of shock insulation.Yet the shear resistance of geosynthetics is generally lower, under earthquake motive force effect, can there is complicated relative motion along the interface of composite pad, at present still can not be by theoretical explanation or this phenomenon of numerical simulation.The seismic design of geosynthetics composite pad system lacks necessary theoretical foundation, has larger blindness and uncertainty.Mainly take at present circulation shear method and direct shear method to measure the shear resistance of geosynthetics, however these two class methods can not failure under earthquake action under the characteristic such as the scrambling of seismic event acceleration and instantaneity.The controlled power direct shear apparatus of vibration mode can accurately be studied the power at geosynthetics composite pad interface under the effect of intricately seismic wave exciting and shear situation, and record the moving shear resistance at geosynthetics composite pad interface under dynamic condition, and then under further investigation geological process, consider the landfill yard dynamical stability mechanism of liner system effect.Owing to lacking the direct shear apparatus device that can realize complicated random vibration input, the research of this respect is difficult to carry out, and needs the earth working material interface motivation direct shear apparatus device that development can realize complicated random vibration input badly.
Summary of the invention
The object of the present invention is to provide large-sized multifunction geosynthetics interface motivation direct shear apparatus.
The large-sized multifunction geosynthetics interface motivation direct shear apparatus that the present invention proposes, is comprised of instrument base 1, excitation system, power exciting input system, normal pressure application system and pressure cell system, wherein:
Instrument base 1 is as the bottom fixed system of whole multifunction test platform, and excitation system, power exciting input system, normal pressure application system and pressure cell system are all positioned at instrument base 1 top;
Excitation system by vibrator after fixed support 3 before fixed support 2, vibrator, longitudinally hanging beam 4, lateral suspension beam 5, vibrator hang fixed bar 6, vibrator hold-down support 7, power vibrator oil cylinder 8, vibrator transmission rod 9 and are connected bayonet apparatus 10 and form, after vibrator, before fixed support 2, vibrator, fixed support 3 is that prefabricated steel welding builds, and by high-strength bolt, is fixed on instrument base 1; Two longitudinal hanging beams 4 and two lateral suspension beams 5 welding form upper suspension beam parts, longitudinally hanging beam 4 two ends by bolt and vibrator before after fixed support 2 and vibrator fixed support 3 be connected and fixed; Vibrator hangs fixed bar 6 through lateral suspension beam 5 middle parts and fixes with bolt, by adjusting bolt, can realize the up-down adjustment that vibrator hangs fixed bar 6, and vibrator hangs fixed bar 6 lower ends and power vibrator oil cylinder 8 is fixing; Vibrator hold-down support 7 is the rear horizontal stationary installations that are positioned at power vibrator oil cylinder 8, it is fixed on fixed support 2 inner sides after vibrator by high-strength bolt, power vibrator oil cylinder 8 connects vibrator transmission rod 9, and vibrator transmission rod 9 one end are provided with vibrator transmission rod and connect bayonet apparatus 10;
Power exciting input system is by vibrator servo-drive system 23, oil pressure transport control system 24 and computer regulation and control system 25 form, vibrator servo-drive system 23, oil pressure transport control system 24 is connected respectively power vibrator oil cylinder 8 with computer regulation and control system 25, vibrator servo-drive system 23 is by oil pressure valve and Sensor monitoring and control the operation of power vibrator oil cylinder 8, the operation that oil pressure transport control system 24 is vibrator oil cylinder 8 provides stablizes controlled oil sources, servo-drive system 23 and oil hydraulic system 24 are finally controlled by visual computer regulation and control system 25,
Pressure cell system is limit fixed frame 16, test soil sample 17, tests geosynthetics 18 and is moved extraction plate 19 by pressure cell load plate 15, side and forms, and tests geosynthetics 18 and is close on the upper surface of moving extraction plate 19; In the rectangular parallelepiped space that pressure cell load plate 15, side limit fixed frame 16 and moving extraction plate 19 form, be filled with test soil sample 17; Moving plate 19 one end of extracting out connect vibrator transmission rod connection bayonet apparatus 10; Take off after side limit fixed frame 16, add that second layer geosynthetics 22 forms modified pressure box, second layer geosynthetics 22 is close to pressure cell load plate 15 lower surfaces;
Normal pressure application system is comprised of vertical pressure device oil cylinder 11, fixed support top board 12, vertical pressure device transmission rod 13, vertical supporting post 14 and horizontal base 21, horizontal base 21 is fixed on instrument base 1 by high-strength bolt, 4 vertical supporting posts 14 are fixed and are formed framework with horizontal base 21 and roof supporting 12 respectively by bolt, fixed support top board 12 is for there being the member of floor, vertical pressure device oil cylinder 11 is installed on the center at fixed support top board 12 tops, pressure device transmission rod 13 Bonding pressure box load plate 15; Steel is set on horizontal base 21 and rolls bar group 20, making to be placed in the friction that lower surface that steel rolls the moving extraction plate 19 in bar group 20 is subject to can ignore.
In the present invention, lateral suspension beam 5 has 2, and on every lateral suspension beam, 2 vibrators of distributing installation hang fixed bar 6, has 4 vibrators and hangs fixed bar 6, lays respectively at four symmetrical hitch point positions of vibrator oil cylinder.
In the present invention, vertical supporting post 14 has 4, and vertical supporting post lower end is fixed on instrument base 1, and upper end and roof supporting 12 form rigid support frame.
In the present invention, after taking off side limit fixed frame 16, add that second layer geosynthetics 22 forms modified pressure box, second layer geosynthetics 22 is close to pressure cell load plate 15 lower surfaces.
the course of work of the present invention:
The present invention is multifunction test instrument, and different tests object and function are corresponding to the different courses of work, and brief description geosynthetics-Soil Interface moves the course of work of direct shear test, the moving direct shear test in two geosynthetics interface.
1, the course of work of the moving direct shear test of geosynthetics-Soil Interface is as follows: geosynthetics 18 is attached to the moving upper surface of extracting plate 19 out, setting side limit fixed frame 16 on geosynthetics 18.At test geosynthetics 18 and the rectangular parallelepiped groove that side limit fixed frame forms, insert test soil sample 17.Operating computer digital control system 25 and oil pressure control system 24, controlling vertical pressure device oil cylinder 11 starts, promote vertical pressure device transmission rod 13 and load plate 15 operation downwards vertical covering at test soil sample upper surface, control computer numerical controlled system 25 and oil pressure control system 24, make the normal pressure applying reach experiment setting value.Operating computer digital control system 25 and oil pressure control system 24, by the control of oil pressure, change the exciting waveform oil pressure control system 24 of setting the mechanical vibration of vibrator oil cylinder 8 pistons into, by vibrator transmission rod 9, drive the test geosynthetics 18 of extracting plate 19 out and attaching thereon to vibrate together, limit the lower surface of the test soil sample 17 in fixed frame 16 and fixed frame to shear with static side.By servo-drive system 23 monitoring, corresponding to stress, strain index in the same time not in shear history, concrete sensor setting scheme is determined by concrete testing requirements.With reference to Fig. 1 ~ Fig. 6.
2, the course of work of two geosynthetics interface direct shear test pattern is as follows: test geosynthetics 18 is attached to the moving upper surface of extracting plate 19 out, test geosynthetics 22 is attached to the lower surface of pressure-loaded plate 15, control computer numerical controlled system 25 and oil pressure control system 24, make the geosynthetics 22 of pressure-loaded plate 15 lower surfaces contact and form shear interface with the geosynthetics 18 of extracting plate 19 upper surfaces out, continue increase normal pressure and reach experiment setting value.Operating computer digital control system 25 and oil pressure control system 24, by the control of oil pressure, change the exciting waveform oil pressure control system 30 of setting the mechanical vibration of vibrator oil cylinder 8 pistons into, by vibrator transmission rod 9, drive the moving test geosynthetics 18 of extracting plate 19 out and attaching thereon to vibrate together, shear with the test geosynthetics 22 that is attached at load plate 15 lower surfaces.By in servo-drive system 23 monitoring shear histories corresponding to stress, strain index in the same time not, concrete sensor setting scheme is determined by concrete testing requirements.
beneficial effect of the present invention:
The great advantage of apparatus of the present invention is to have realized setting under the excitation of random waveform vibration, the mensuration of the power shear stress strain character at geosynthetics-Soil Interface and two geosynthetics interface, solved the deficiency that existing large-scale direct shear apparatus can only record static(al) shear property, filled up blank to the research of geosynthetics interface shearing property detection at present.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is left view of the present invention.
Fig. 4 is right view of the present invention.
Fig. 5 is vertical view of the present invention.
Fig. 6 is the schematic diagram of soil-geosynthetics interface shearing box of the present invention.
Fig. 7 is the schematic diagram of of the present invention pair of geosynthetics interface shearing box.
Number in the figure: 1 is base, 2 is fixed support after vibrator, 3 is fixed support before vibrator, 4 is longitudinal hanging balancing beam, 5 is lateral suspension beam, 6 is vibrator suspension fixed bar, 7 is vibrator hold-down support, 8 is power vibrator oil cylinder, 9 is vibrator transmission rod, 10 is vibrator transmission rod connection bayonet apparatus, 11 is vertical pressure device oil cylinder, 12 is vertical pressure device fixed support top board, 13 is vertical pressure device transmission rod, 14 is vertical supporting post, 15 is pressure cell load plate, 16 is pressure cell side limit fixed frame, 17 is test soil sample, 18 is test geosynthetics, 19 is the moving plate of extracting out, 20 roll bar group for steel, 21 is cutting out section horizontal base, 22 is second layer geosynthetics, 23 is vibrator servo-drive system, 24 is oil pressure transport control system, 25 is computer regulation and control system.
Embodiment
The present invention is multifunction test instrument, and different tests object and function are corresponding to the different courses of work, and the invention is further illustrated by the following examples.
embodiment 1
As shown in Fig. 1-Fig. 7, device is by instrument base 1, after vibrator, fixed support 2, fixed support 3 before vibrator, longitudinal hanging beam 4, lateral suspension beam 5, vibrator hangs fixed bar 6, vibrator hold-down support 7, vibrator oil cylinder 8, vibrator transmission rod 9, connect bayonet apparatus 10, vertical pressure device oil cylinder 11, fixed support top board 12, vertical pressure device transmission rod 13, vertical supporting post 14, load plate 15, side limit fixed frame 16, test soil sample 17, test geosynthetics 18, the moving plate 19 of extracting out, steel rolls bar group 20, horizontal base 21, second layer test geosynthetics 22 forms, comprise in addition vibrator servo-drive system 23, oil pressure transport control system 24, computer regulation and control system 25.Wherein, instrument base 1 is as the bottom fixed system of whole multifunction test platform.After vibrator, before fixed support 2, vibrator, fixed support 3, longitudinal hanging beam 4, lateral suspension beam 5, vibrator hang fixed bar 6, vibrator hold-down support 7, power vibrator oil cylinder 8, vibrator transmission rod 9, connect bayonet apparatus 10 composition excitation systems.Fixed support 2 after vibrator, be that before vibrator, fixed support 3, for prefabricated steel welding builds, is fixed on base 1 with high-strength bolt; Two longitudinal hanging beams 4 and two lateral suspension beam 5 welding form upper suspension girder system system, by fixed support 2,3 before and after bolt and vibrator, are connected and fixed; 4 steel vibrators hang fixed bar 6 and are passed in respectively two lateral suspension beam 5 middle parts and fix with bolt, by regulating, can realize the up-down adjustment that hangs fixed bar, and the lower end and the power vibrator oil cylinder 8 that hang fixed bar 6 are fixing.Vibrator hold-down support 7, power vibrator oil cylinder 8, vibrator transmission rod 9, vibrator transmission rod connection bayonet apparatus 10, vibrator servo-drive system 23, oil pressure transport control system 24, computer regulation and control system 25 have formed power exciting input system.Vibrator hold-down support 7 is rear horizontal stationary installations of power vibrator oil cylinder 8, by high-strength bolt, be fixed on after vibrator on fixed support 2 inner side steel plates, vibrator transmission rod 9 connects bayonet apparatus 10 by vibrator transmission rod and connects vibration output unit, vibrator servo-drive system 23 is by oil pressure valve and Sensor monitoring and control the operation of power vibrator oil cylinder 8, the operation that oil pressure transport control system 24 is vibrator oil cylinder 8 provides stablizes controlled oil sources, and servo-drive system and oil hydraulic system are finally controlled by visual computer regulation and control system 25.Vertical pressure device oil cylinder 11, fixed support top board 12, vertical pressure device transmission rod 13, vertical supporting post 14, load plate 15 and horizontal base 21 form normal pressure application system.Horizontal base 21 is fixed on instrument base 1 by high-strength bolt for steel rectangular base, as the base of normal pressure application system; 4 vertical supporting posts 14 are fixed and are formed framework with horizontal base 21 and roof supporting 12 respectively by bolt, vertical pressure device fixed support top board 12 is for there being the steel component of floor, vertical pressure device oil cylinder 11 is arranged on the center of top board 12, pressure device transmission rod 13 Bonding pressure box load plate 15; Steel is set on horizontal base 21 and rolls bar group 20, making to be placed in the friction that lower surface that steel rolls the moving extraction plate 19 in bar group 20 is subject to can ignore.Load plate 15, side limit fixed frame 16, test soil sample 17, test geosynthetics 18, moving plate 19, the decomposition pressure box system of extracting out, as shown in Figure 6.Test geosynthetics 18 is close on the upper surface of moving extraction plate 19; In the rectangular parallelepiped space that the moving extraction plate 19 of pressure cell load plate 15, side limit fixed frame 16 and attaching test geosynthetics 18 forms, fill test soil sample 17.Take off after side limit fixed frame 16, add that second layer geosynthetics 22 forms modified pressure box, as shown in Figure 7.Second layer geosynthetics 22 is close to pressure cell load plate 15 lower surfaces.
Lateral suspension beam 5 has 2, and on every lateral suspension beam, 2 vibrators of distributing installation hang fixed bar 6, has 4 vibrators and hangs fixed bar 6, lays respectively at four symmetrical hitch point positions of vibrator oil cylinder.
Vertical supporting post 14 has 4, and vertical supporting post lower end is fixed on instrument base 1, and upper end and roof supporting 12 form rigid support frame.
Instrument base 1: HN 700 * 300 * 13 * No. 24 H shaped steel long by two 3000mm form, and are laterally fixedly connected with high-strength bolt with 20mm thickness steel plate; After vibrator, fixed support 2: the steel-made support member of longitudinal length 200mm, horizontal wide 600mm, height 500mm, with Plate Welding, form, and fixing with high-strength bolt and instrument base 1; Fixed support 3 before vibrator: measure-alike with fixed support after vibrator, at the middle upper/lower positions place of vertical steel plate, open the hole of a 280mm * 200mm, to allow vibrator transmission rod pass; Longitudinal hanging beam 4: be 100 * 50 * 5 * No. 7 H shaped steel of HN of length 1000mm, two ends are welded with fixedly bloom, is fixedly connected with fixed support 2,3 before and after vibrator with high-strength bolt; Lateral suspension beam 5: be No. 8 long channel-section steels of 480mm, notch is fixed on the top of longitudinal hanging beam 4 downwards, is connected and fixed with high-strength bolt and longitudinal hanging beam 4; Vibrator hangs fixed bar 6: be the circular car high-strength steel rod member processed of length 400mm, diameter 20mm; Vibrator hold-down support 7, vibrator oil cylinder 8, vibrator transmission rod 9: the kit providing for American MTS company; Connect bayonet apparatus 10: be the member of the high-strength steel car system of length 200mm, width 120mm, high 120mm, bayonet socket bearing is fixed with the high-strength bolt of 2 20mm diameters; Vertical pressure device oil cylinder 11, vertical pressure device transmission rod 13: the kit providing for Changchun Group Co.,Ltd of Research Institute of Mechanical Engineering; Fixed support top board 12: be length and width 700mm * 700mm, with the member of 20mm steel plate welding; Vertical supporting post 14: be length 960mm, the square steel of 100mm * 100mm; Load plate 15: be the steel component of 1100mm * 340mm * 35mm, welding floor is arranged at top; Side limit fixed frame 16: the shaped as frame steel component that the frame inside dimension made from Plate Welding is 1050mm * 350mm; The moving plate 19 of extracting out: be the 15mm steel plate of width 350mm, length 1450mm, moving plate 19 upper surfaces of extracting out be mechanical etched intensive rag, under larger normal pressure, can guarantee to test geosynthetics and it does not produce relative displacement; Steel rolls bar group 20: one group of firm bar of 15mm diameter and supporting oil groove, consist of, with high-strength bolt, be fixed on horizontal base 21; Horizontal base 21: be the 20mm steel plate of 1100mm * 800mm, be fixedly connected with base 1 with high-strength bolt.
Said apparatus is used for testing soil sample shear box direct shear test pattern, its course of work is as follows: will be of a size of 1250mm * 400mm geosynthetics 18 and be attached at the moving upper surface of extracting plate 19 out, setting side limit fixed frame 16 on geosynthetics 18, it is 1050mm * 350mm rectangle frame-shaped construction that side limit fixed frame 16 is made inside dimension by the thick steel plate of 20mm, and side limit fixed frame height is 120mm.At test geosynthetics 18 and the rectangular parallelepiped groove that side limit fixed frame forms, insert test soil sample 17, the degree of depth of inserting of test soil sample 17 is set according to testing requirements.Operating computer digital control system 25 and oil pressure control system 24, controlling vertical pressure device oil cylinder 11 starts, promoting vertical pressure device transmission rod 13 and load plate 15 moves downwards, load plate 15 is vertically covered at test soil sample upper surface, and wrap up with the whole people of geosynthetics 18, side limit fixed frame 16 shape pairwise testing soil samples 17, the lower surface of load plate 15 is of a size of 1050mm * 350mm, control computer numerical controlled system 25 and oil pressure control system 24, the normal pressure that load plate 15 is applied reaches experiment setting value.To extract plate 19 out is firmly connected by steel transmission rod stationary installation 10 use bolts with vibrator transmission rod 9, operating computer digital control system 25 and oil pressure control system 24, the exciting waveform of setting is changed into the mechanical vibration of vibrator oil cylinder 8 pistons by the control of 24 pairs of oil pressure of oil pressure control system, by vibrator transmission rod 9, drive the moving test geosynthetics 18 of extracting plate 19 out and attaching thereon to vibrate together, limit the lower surface of the test soil sample 17 in fixed frame 16 and fixed frame to shear with static side.By in servo-drive system 23 monitoring shear histories corresponding to stress, strain index in the same time not, concrete sensor setting scheme is determined by concrete testing requirements.In whole oscillatory shear process, the test geosynthetics 18 attaching on the moving extraction of assurance plate 19 is the lower surface of complete cover butter soil sample 17 all the time.With reference to Fig. 1 ~ 6, those skilled in the art all can implement smoothly.
embodiment 2
Device described in embodiment 1 is used for testing two geosynthetics interface direct shear test pattern, its course of work is as follows: the test geosynthetics 18 that is of a size of 1250mm * 350mm is attached to the moving upper surface of extracting plate 19 out, the test geosynthetics that is of a size of 1050mm * 350mm is attached to pressure-loaded plate 15 lower surfaces, control computer numerical controlled system 31 and oil pressure control system 30, make the geosynthetics 22 of pressure-loaded plate 15 lower surfaces contact and form shear surface with the moving geosynthetics 18 of extracting plate 19 upper surfaces out, continue increase the normal pressure applying and reach experiment setting value.To extract plate 19 out is firmly connected by steel transmission rod stationary installation 10 use bolts with vibrator transmission rod 9, operating computer digital control system 25 and oil pressure control system 24, the exciting waveform of setting is changed into the mechanical vibration of vibrator oil cylinder 8 pistons by the control of 24 pairs of oil pressure of oil pressure control system, by vibrator transmission rod 9, drive the moving test geosynthetics 18 of extracting plate 19 out and attaching thereon to vibrate together, shear with the test geosynthetics 22 that is attached at load plate 15 lower surfaces.By in servo-drive system 23 monitoring shear histories corresponding to stress, strain index in the same time not, concrete sensor setting scheme is determined by concrete testing requirements.In whole oscillatory shear process, the test geosynthetics 18 attaching on the moving extraction of assurance plate 19 is the lower surface of complete coverage test geosynthetics 22 all the time.With reference to Fig. 1 ~ 5 and Fig. 7, those skilled in the art all can implement smoothly.
Claims (4)
1. a large-sized multifunction geosynthetics interface motivation direct shear apparatus, is comprised of instrument base (1), excitation system, power exciting input system, normal pressure application system and pressure cell system, it is characterized in that:
Instrument base (1) is as the bottom fixed system of whole multifunction test platform, and excitation system, power exciting input system, normal pressure application system and pressure cell system are all positioned at instrument base (1) top;
Excitation system by vibrator after fixed support (3) before fixed support (2), vibrator, longitudinally hanging beam (4), lateral suspension beam (5), vibrator hang fixed bar (6), vibrator hold-down support (7), power vibrator oil cylinder (8), vibrator transmission rod (9) and are connected bayonet apparatus (10) and form, before fixed support after vibrator (2), vibrator, fixed support (3) is that prefabricated steel welding builds, and by high-strength bolt, is fixed on instrument base (1); The welding of two longitudinal hanging beams (4) and two lateral suspension beams (5) forms upper suspension beam parts, longitudinally hanging beam (4) two ends by bolt and vibrator before after fixed support (2) and vibrator fixed support (3) be connected and fixed; Vibrator hangs fixed bar (6) through lateral suspension beam (5) middle part and fixes with bolt, by adjusting bolt, can realize the up-down adjustment that vibrator hangs fixed bar (6), vibrator hangs fixed bar (6) lower end and power vibrator oil cylinder (8) is fixing; Vibrator hold-down support (7) is the rear horizontal stationary installation that is positioned at power vibrator oil cylinder (8), it is fixed on fixed support (2) inner side after vibrator by high-strength bolt, power vibrator oil cylinder (8) connects vibrator transmission rod (9), and vibrator transmission rod (9) one end is provided with vibrator transmission rod and connects bayonet apparatus (10);
Power exciting input system is by vibrator servo-drive system (23), oil pressure transport control system (24) and computer regulation and control system (25) form, vibrator servo-drive system (23), oil pressure transport control system (24) is connected respectively power vibrator oil cylinder (8) with computer regulation and control system (25), vibrator servo-drive system (23) is by oil pressure valve and Sensor monitoring and control the operation of power vibrator oil cylinder (8), oil pressure transport control system (24) is stablized controlled oil sources for the operation of vibrator oil cylinder (8) provides, servo-drive system (23) and oil hydraulic system (24) are finally controlled by visual computer regulation and control system (25),
Pressure cell system is limit fixed frame (16), test soil sample (17), tests geosynthetics (18) and is moved extraction plate (19) by pressure cell load plate (15), side and forms, and tests geosynthetics (18) and is close on the upper surface of moving extraction plate (19); In the rectangular parallelepiped space that pressure cell load plate (15), side limit fixed frame (16) and moving extraction plate (19) form, be filled with test soil sample (17); Moving plate (19) one end of extracting out connects vibrator transmission rod connection bayonet apparatus (10); Take off after side limit fixed frame (16), add that second layer geosynthetics (22) forms modified pressure box, second layer geosynthetics (22) is close to pressure cell load plate (15) lower surface;
Normal pressure application system is by vertical pressure device oil cylinder (11), fixed support top board (12), vertical pressure device transmission rod (13), vertical supporting post (14) and horizontal base (21) form, horizontal base (21) is fixed on instrument base (1) by high-strength bolt, 4 vertical supporting posts (14) are fixed and are formed framework with horizontal base (21) and roof supporting (12) respectively by bolt, fixed support top board (12) is for there being the member of floor, vertical pressure device oil cylinder (11) is installed on the center at fixed support top board (12) top, pressure device transmission rod (13) Bonding pressure box load plate (15), steel is set on horizontal base (21) and rolls bar group (20), making to be placed in the friction that lower surface that steel rolls the moving extraction plate (19) in bar group (20) is subject to can ignore.
2. large-sized multifunction geosynthetics interface motivation direct shear apparatus according to claim 1, it is characterized in that lateral suspension beam (5) has 2, on every lateral suspension beam, 2 vibrators of distributing installation hang fixed bar (6), have 4 vibrators and hang fixed bar (6), lay respectively at four symmetrical hitch point positions of vibrator oil cylinder.
3. large-sized multifunction geosynthetics interface motivation direct shear apparatus according to claim 1, it is characterized in that vertical supporting post (14) has 4, it is upper that vertical supporting post lower end is fixed on instrument base (1), and upper end and roof supporting (12) form rigid support frame.
4. large-sized multifunction geosynthetics interface motivation direct shear apparatus according to claim 1, it is characterized in that after taking off side limit fixed frame (16), add that second layer geosynthetics (22) forms modified pressure box, second layer geosynthetics (22) is close to pressure cell load plate (15) lower surface.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833591A (en) * | 2015-05-16 | 2015-08-12 | 山西省交通科学研究院 | Large direct shear apparatus capable of achieving isotropic movement in three-dimensional space and test method thereof |
| CN104931358A (en) * | 2015-06-26 | 2015-09-23 | 中国科学院地质与地球物理研究所 | Method of testing direct shear strength of large-scale coarse-grained soil |
| CN105004666A (en) * | 2015-06-26 | 2015-10-28 | 中国科学院地质与地球物理研究所 | Geosynthetic material contact surface friction strength test method |
| CN107101899A (en) * | 2017-06-01 | 2017-08-29 | 中国地质大学（武汉） | The soil body dither direct shear apparatus and its application method of a kind of level monitoring acceleration |
| CN107917846A (en) * | 2017-11-01 | 2018-04-17 | 浙江大学 | Soil shear characteristic essence amount determining device and its assay method |
| CN108645722A (en) * | 2018-05-23 | 2018-10-12 | 同济大学 | The multi-functional interface motivation shearing test apparatus of large scale and test method |
| CN109946031A (en) * | 2019-03-22 | 2019-06-28 | 天津大学 | A kind of single beam vibration experiment system |
| CN110132763A (en) * | 2019-05-24 | 2019-08-16 | 广西大学 | It is a kind of for test the soil body dynamic stress strain device and its test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360690A (en) * | 1976-11-12 | 1978-05-31 | Japan National Railway | Vibration oneesurface shear tester |
| JPH08101108A (en) * | 1994-09-30 | 1996-04-16 | Shimadzu Corp | Two-axis loading test device |
| CN1769859A (en) * | 2005-07-27 | 2006-05-10 | 马骉 | Instrument for testing shearing performance of pavement flexible material |
| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
| CN102269676A (en) * | 2011-05-12 | 2011-12-07 | 河海大学 | High-precision geotechnical simple shear apparatus and use method thereof |
| CN102564845A (en) * | 2012-01-11 | 2012-07-11 | 河海大学 | Bidirectional variation mechanical property testing instrument for contact surface between earth and structure |
-
2014
- 2014-06-04 CN CN201410243598.7A patent/CN104034607B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360690A (en) * | 1976-11-12 | 1978-05-31 | Japan National Railway | Vibration oneesurface shear tester |
| JPH08101108A (en) * | 1994-09-30 | 1996-04-16 | Shimadzu Corp | Two-axis loading test device |
| CN1769859A (en) * | 2005-07-27 | 2006-05-10 | 马骉 | Instrument for testing shearing performance of pavement flexible material |
| CN102207436A (en) * | 2010-07-26 | 2011-10-05 | 水利部交通运输部国家能源局南京水利科学研究院 | High performance direct shearing apparatus for large contact surfaces |
| CN102269676A (en) * | 2011-05-12 | 2011-12-07 | 河海大学 | High-precision geotechnical simple shear apparatus and use method thereof |
| CN102564845A (en) * | 2012-01-11 | 2012-07-11 | 河海大学 | Bidirectional variation mechanical property testing instrument for contact surface between earth and structure |
Non-Patent Citations (1)
| Title |
|---|
| 冯世进 等: "城市固体废弃物(MSW)抗剪强度特性研究", 《第八次全国岩石力学与工程学术大会论文集》 * |
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