CN104034607B - Large-sized multifunction geosynthetics interface motivation direct shear apparatus - Google Patents
Large-sized multifunction geosynthetics interface motivation direct shear apparatus Download PDFInfo
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Abstract
The invention belongs to Geotechnical Engineering field, be specifically related to a kind of large-sized multifunction geosynthetics interface motivation direct shear apparatus.Limit by base, front and back fixed support, transverse and longitudinal hanging beam, hanger bar, vibrator (oil cylinder, bearing, transmission rod, bayonet socket), vertical pressure device, top board, support column, load plate, side that frame, test soil sample and geosynthetics, extraction plate, steel roll bar group, horizontal base, servo-drive system, oil hydraulic system, computerized control system form.Front and back fixed support and hanging beam fix vibrator, and top board, support column and horizontal base form framework and fixing vertical pressure device and load plate, and remaining part forms shear box.Control vibrator by computerized control system, oil hydraulic system and extract panel vibration out, by servo-drive system monitor stress strain index.The present invention can measure the dynamic shear characteristic at any vibrational waveform soil under action geosynthetics interface, and this instrument also by changing the multiple interface of unit test, realizes other test objectives.
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, multiple earth working material interface motivation direct shear test can be realized.
Background technology
The manufactured goods that geosynthetics is is raw material with the polymkeric substance of Prof. Du Yucang (as plastics, chemical fibre, synthetic rubber etc.), geosynthetics is divided into the types such as geotextile, geosynthetics, geotechnological special material and earthwork composite material, geonet, glass fiber net, geotechnique's pad by China " Technical code for application of geosynthetics GB50290-98 ".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 the function of shock insulation of complexity.But the shear resistance of geosynthetics is general lower, complicated relative motion can be there is along the interface of composite pad under dynamic seismic effect, at present still can not by theoretical explanation or this phenomenon of numerical simulation.The seismic design of geosynthetics composite pad system lacks necessary theoretical foundation, there is larger blindness and uncertainty.Mainly take circulation shear method and direct shear method to measure the shear resistance of geosynthetics at present, but these two class methods can not the characteristic such as scrambling and instantaneity of seismic event acceleration under failure under earthquake action.The controlled power direct shear apparatus of vibration mode accurately can study the dynamic shear situation at intricately seismic wave exciting soil under action geosynthetics composite pad interface, and the dynamic shear resistance at geosynthetics composite pad interface under recording 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 the input of complicated random vibration, 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 the input of complicated random vibration 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 made up 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 above instrument base 1;
Excitation system is hung fixed bar 6, vibrator hold-down support 7, power vibrator oil cylinder 8, vibrator transmission rod 9 and is connected bayonet apparatus 10 formed by fixed support 3, longitudinal hanging beam 4, lateral suspension beam 5, vibrator before fixed support after vibrator 2, vibrator, after vibrator, before fixed support 2, vibrator, fixed support 3 is that prefabricated steel welding builds, and is fixed on instrument base 1 by high-strength bolt; Two longitudinal hanging beams 4 and two lateral suspension beams 5 weld and form upper suspension beam parts, and longitudinal hanging beam 4 two ends are connected and fixed by fixed support 3 after fixed support 2 before bolt and vibrator and vibrator; Vibrator hangs fixed bar 6 through fixing with bolt in the middle part of lateral suspension beam 5, and can realize by adjusting bolt the up-down adjustment that vibrator hangs fixed bar 6, it is fixing with power vibrator oil cylinder 8 that vibrator hangs fixed bar 6 lower end; Vibrator hold-down support 7 is the rear horizontal stationary installations being positioned at power vibrator oil cylinder 8, it to be fixed on after vibrator inside fixed support 2 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 and computer regulation and control system 25 are connected power vibrator oil cylinder 8 respectively, 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 limits fixed frame 16, test soil sample 17, test geosynthetics 18 and dynamic plate 19 of extracting out to form by pressure cell load plate 15, side, and test geosynthetics 18 is close on the dynamic upper surface extracting plate 19 out; Test soil sample 17 is filled with in pressure cell load plate 15, side limit fixed frame 16 and the dynamic rectangular parallelepiped space extracting plate 19 formation out; Dynamic plate 19 one end of extracting out connects vibrator transmission rod connection bayonet apparatus 10; 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;
Normal pressure application system is made up 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 with horizontal base 21 and roof supporting 12 respectively by bolt and are formed framework, fixed support top board 12 is for there being the component 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; Horizontal base 21 is arranged steel and roll bar group 20, the friction that the lower surface being placed in the dynamic extraction plate 19 that steel rolls in bar group 20 is subject to can be ignored.
In the present invention, lateral suspension beam 5 has 2, and on every root lateral suspension beam, distributing installation 2 vibrators hang fixed bar 6, has 4 vibrators and hangs fixed bar 6, lay 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 namely second layer geosynthetics 22 forms modified pressure box, second layer geosynthetics 22 is close to pressure cell load plate 15 lower surface.
the course of work of the present invention:
The present invention is multifunction test instrument, and different tests object and function correspond to the different courses of work, the course of work that brief description geosynthetics-Soil Interface moves direct shear test, direct shear test is moved at two geosynthetics interfaces.
1, to move the course of work of direct shear test as follows for geosynthetics-Soil Interface: geosynthetics 18 is attached at the dynamic upper surface extracting plate 19 out, setting side limit fixed frame 16 on geosynthetics 18.The rectangular parallelepiped groove limitting fixed frame to be formed in test geosynthetics 18 and side is inserted and is tested soil sample 17.Operating computer digital control system 25 and oil pressure control system 24, control vertical pressure device oil cylinder 11 to start, promoting vertical pressure device transmission rod 13 covers at test soil sample upper surface with load plate 15 operation is downwards also vertical, control computer numerical controlled system 25 and oil pressure control system 24, make the normal pressure of applying reach experiment setting value.Operating computer digital control system 25 and oil pressure control system 24, the exciting waveform oil pressure control system 24 of setting is changed into the mechanical vibration of vibrator oil cylinder 8 piston by the control of oil pressure, drive extraction plate 19 and the test geosynthetics 18 attached thereon to vibrate together by vibrator transmission rod 9, limit the lower surface of the test soil sample 17 in fixed frame 16 and fixed frame to shear with static side.Monitored by servo-drive system 23 and to correspond in shear history not stress, strain index in the same time, 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 interfaces direct shear test pattern is as follows: test geosynthetics 18 is attached at the dynamic upper surface extracting plate 19 out, test geosynthetics 22 is attached at the lower surface of pressure-loaded plate 15, control computer numerical controlled system 25 and oil pressure control system 24, the geosynthetics 22 of pressure-loaded plate 15 lower surface is contacted with the geosynthetics 18 extracting plate 19 upper surface out and forms shear interface, continue increase normal pressure and reach experiment setting value.Operating computer digital control system 25 and oil pressure control system 24, the exciting waveform oil pressure control system 30 of setting is changed into the mechanical vibration of vibrator oil cylinder 8 piston by the control of oil pressure, drive dynamic extraction plate 19 and the test geosynthetics 18 attached thereon to vibrate together by vibrator transmission rod 9, shear with the test geosynthetics 22 being attached at load plate 15 lower surface.Monitored in shear history by servo-drive system 23 and correspond to not stress in the same time, strain index, 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 achieves under the excitation of setting random waveform vibration, the mensuration of the dynamic shear stress-strain property at geosynthetics-Soil Interface and two geosynthetics interface, solve the deficiency that existing large-scale direct shear apparatus can only record static(al) shear property, fill up the current research to geosynthetics interface shearing property detection blank.
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 of the present invention-geosynthetics interface shearing box.
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 extract plate out for dynamic, 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 correspond 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, fixed support 2 after vibrator, 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, dynamic extraction plate 19, steel rolls bar group 20, horizontal base 21, second layer test geosynthetics 22 forms, comprise vibrator servo-drive system 23 in addition, 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 suspension fixed bar 6, vibrator hold-down support 7, power vibrator oil cylinder 8, vibrator transmission rod 9, connection bayonet apparatus 10 form excitation system.Fixed support 2 after vibrator, be that prefabricated steel welding builds for fixed support before vibrator 3, be fixed on base 1 with high-strength bolt; Two longitudinal hanging beams 4 and two lateral suspension beams 5 weld and form upper suspension girder system system, are connected and fixed by fixed support before and after bolt and vibrator 2,3; 4 steel vibrators hang fixed bar 6 and to be each passed through in the middle part of two lateral suspension beams 5 and to fix with bolt, and by regulating the up-down adjustment that can realize hanging fixed bar, the lower end hanging fixed bar 6 is fixing with power vibrator oil cylinder 8.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 constitute power exciting input system.Vibrator hold-down support 7 is rear horizontal stationary installations of power vibrator oil cylinder 8, to be fixed on after vibrator inside fixed support 2 on steel plate by high-strength bolt, 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 for steel rectangular base by high-strength bolt, as the base of normal pressure application system; 4 vertical supporting posts 14 are fixed with horizontal base 21 and roof supporting 12 respectively by bolt and are formed framework, 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; Horizontal base 21 arranges steel and rolls bar group 20, the friction that the lower surface being placed in the dynamic extraction plate 19 that steel rolls in bar group 20 is subject to can be ignored.Load plate 15, side limit fixed frame 16, test soil sample 17, test geosynthetics 18, dynamic extraction plate 19, decomposition pressure box system, as shown in Figure 6.Test geosynthetics 18 is close on the dynamic upper surface extracting plate 19 out; Test soil sample 17 is filled in the rectangular parallelepiped space that pressure cell load plate 15, side limit fixed frame 16 and the dynamic extraction plate 19 attaching test geosynthetics 18 are formed.After taking off 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 surface.
Lateral suspension beam 5 has 2, and on every root lateral suspension beam, distributing installation 2 vibrators hang fixed bar 6, has 4 vibrators and hangs fixed bar 6, lay 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: HN700 × 300 × 13 × No. 24 H profile steel long by two 3000mm is formed, and transverse direction 20mm thickness steel plate is fixedly connected with high-strength bolt; Fixed support 2 after vibrator: the steel-made support component of longitudinal length 200mm, laterally wide 600mm, height 500mm, forms with Plate Welding, fixes with high-strength bolt and instrument base 1; Fixed support 3 before vibrator: measure-alike with fixed support after vibrator, in vertical steel plate, upper/lower positions place opens the hole of a 280mm × 200mm, passes to allow vibrator transmission rod; Longitudinal hanging beam 4: be HN100 × 50 × 5 × No. 7 H profile steel of length 1000mm, two ends are welded with fixing bloom, are fixedly connected with fixed support before and after vibrator 2,3 with high-strength bolt; Lateral suspension beam 5: be No. 8 channel-section steels that 480mm is long, 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 of length 400mm, diameter 20mm; Vibrator hold-down support 7, vibrator oil cylinder 8, vibrator transmission rod 9: the kit provided for American MTS company; Connect bayonet apparatus 10: be the component of the high-strength steel car of length 200mm, width 120mm, high 120mm, the bayonet socket bearing high-strength bolt of 2 20mm diameters is fixed; Vertical pressure device oil cylinder 11, vertical pressure device transmission rod 13: the kit provided for Changchun Group Co., Ltd of Research Institute of Mechanical Engineering; Fixed support top board 12: be length and width 700mm × 700mm, with the component of 20mm steel plate welding; Vertical supporting post 14: be the square steel of length 960mm, 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 frame inside dimension made with Plate Welding is the shaped as frame steel component of 1050mm × 350mm; Dynamic extract plate 19 out: be the 15mm steel plate of width 350mm, length 1450mm, dynamicly extract the intensive rag that plate 19 upper surface is machinery etching out, under larger normal pressure, can ensure test geosynthetics and its do not produce relative displacement; Steel rolls bar group 20: be made up of one group of firm bar of 15mm diameter and supporting oil groove, is fixed on horizontal base 21 with high-strength bolt; 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 test 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 dynamic upper surface 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 makes inside dimension by the steel plate that 20mm is thick, and side limit fixed frame height is 120mm.The rectangular parallelepiped groove limitting fixed frame to be formed in test geosynthetics 18 and side is inserted and is tested soil sample 17, and the degree of depth of inserting of test soil sample 17 sets according to testing requirements.Operating computer digital control system 25 and oil pressure control system 24, control vertical pressure device oil cylinder 11 to start, promotion vertical pressure device transmission rod 13 and load plate 15 are run downwards, load plate 15 is made vertically to cover at test soil sample upper surface, and limit the whole people of fixed frame 16 shape pairwise testing soil sample 17 to wrap up with geosynthetics 18, side, 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.Extraction plate 19 is firmly connected with bolt by steel transmission rod stationary installation 10 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 piston by the control of oil pressure control system 24 pairs of oil pressure, drive dynamic extraction plate 19 and the test geosynthetics 18 attached thereon to vibrate together by vibrator transmission rod 9, limit the lower surface of the test soil sample 17 in fixed frame 16 and fixed frame to shear with static side.Monitored in shear history by servo-drive system 23 and correspond to not stress in the same time, strain index, concrete sensor setting scheme is determined by concrete testing requirements.In whole oscillatory shear process, ensure the dynamic lower surface extracting test geosynthetics 18 that plate 19 attaches cover butter soil sample 17 completely all the time out.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 test two geosynthetics interfaces direct shear test pattern, its course of work is as follows: the test geosynthetics 18 being of a size of 1250mm × 350mm is attached at the dynamic upper surface extracting plate 19 out, the test geosynthetics being of a size of 1050mm × 350mm is attached at pressure-loaded plate 15 lower surface, control computer numerical controlled system 31 and oil pressure control system 30, the geosynthetics 22 of pressure-loaded plate 15 lower surface is contacted with the dynamic geosynthetics 18 extracting plate 19 upper surface out and forms shear surface, continue the normal pressure of increase applying and reach experiment setting value.Extraction plate 19 is firmly connected with bolt by steel transmission rod stationary installation 10 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 piston by the control of oil pressure control system 24 pairs of oil pressure, drive dynamic extraction plate 19 and the test geosynthetics 18 attached thereon to vibrate together by vibrator transmission rod 9, shear with the test geosynthetics 22 being attached at load plate 15 lower surface.Monitored in shear history by servo-drive system 23 and correspond to not stress in the same time, strain index, concrete sensor setting scheme is determined by concrete testing requirements.In whole oscillatory shear process, ensure the dynamic lower surface extracting test geosynthetics 18 that plate 19 attaches coverage test geosynthetics 22 completely all the time out.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 made up 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 is hung fixed bar (6), vibrator hold-down support (7), power vibrator oil cylinder (8), vibrator transmission rod (9) and is connected bayonet apparatus (10) formed by fixed support (3), longitudinal hanging beam (4), lateral suspension beam (5), vibrator before fixed support after vibrator (2), vibrator, after vibrator, before fixed support (2), vibrator, fixed support (3) builds for prefabricated steel welding, is fixed on instrument base (1) by high-strength bolt; Two longitudinal hanging beams (4) and two lateral suspension beam (5) welding form upper suspension beam parts, and longitudinal hanging beam (4) two ends are connected and fixed by fixed support (3) after fixed support (2) before bolt and vibrator and vibrator; Vibrator hang fixed bar (6) through lateral suspension beam (5) middle part and fix with bolt, can realize by adjusting bolt the up-down adjustment that vibrator hangs fixed bar (6), vibrator hangs fixed bar (6) lower end and power vibrator oil cylinder (8) is fixed; Vibrator hold-down support (7) is the rear horizontal stationary installation being 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) composition, vibrator servo-drive system (23), oil pressure transport control system (24) is connected power vibrator oil cylinder (8) respectively 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 power vibrator oil cylinder (8) provides stablizes controlled oil sources, vibrator servo-drive system (23) and oil pressure transport control system (24) are finally controlled by visual computer regulation and control system (25),
Pressure cell system limits fixed frame (16), test soil sample (17), test geosynthetics (18) and dynamic plate (19) of extracting out to form by pressure cell load plate (15), side, and test geosynthetics (18) is close on the dynamic upper surface extracting plate (19) out; Test soil sample (17) is filled with in the rectangular parallelepiped space that pressure cell load plate (15), side limit fixed frame (16) and dynamic extraction plate (19) are formed; Dynamic plate (19) one end of extracting out connects vibrator transmission rod connection bayonet apparatus (10); 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;
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) composition, horizontal base (21) is fixed on instrument base (1) by high-strength bolt, 4 vertical supporting posts (14) are fixed with horizontal base (21) and fixed support top board (12) respectively by bolt and are formed framework, fixed support top board (12) is for there being the component of floor, vertical pressure device oil cylinder (11) is installed on the center at fixed support top board (12) top, vertical pressure device transmission rod (13) Bonding pressure box load plate (15), horizontal base (21) is arranged steel and roll bar group (20), the friction that the lower surface being placed in the dynamic extraction plate (19) that steel rolls in bar group (20) is subject to can be ignored.
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 root lateral suspension beam, distributing installation 2 vibrators 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, 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) namely forms modified pressure box, second layer geosynthetics (22) is close to pressure cell load plate (15) lower surface.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833591B (en) * | 2015-05-16 | 2017-09-19 | 山西省交通科学研究院 | A kind of mobile large direct shear apparatus of achievable three dimensions and its test method |
| CN105004666B (en) * | 2015-06-26 | 2017-11-07 | 云南武易高速公路建设指挥部 | A kind of geosynthetics contact surface frictional strength method of testing |
| CN104931358B (en) * | 2015-06-26 | 2017-09-15 | 中国科学院地质与地球物理研究所 | A kind of large scale coarse-grained soil direct shear strength method of testing |
| CN107101899B (en) * | 2017-06-01 | 2020-09-29 | 中国地质大学（武汉） | Soil body high-frequency vibration direct shear apparatus for monitoring horizontal acceleration and use method thereof |
| CN107917846B (en) * | 2017-11-01 | 2023-04-07 | 浙江大学 | Soil shearing characteristic precision measuring device and measuring method thereof |
| CN108645722B (en) * | 2018-05-23 | 2020-08-14 | 同济大学 | Large-size multifunctional interface dynamic shear tester 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5360690A (en) * | 1976-11-12 | 1978-05-31 | Japan National Railway | Vibration oneesurface shear tester |
| JP3312503B2 (en) * | 1994-09-30 | 2002-08-12 | 株式会社島津製作所 | Biaxial loading test equipment |
-
2014
- 2014-06-04 CN CN201410243598.7A patent/CN104034607B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|
| 城市固体废弃物(MSW)抗剪强度特性研究;冯世进 等;《第八次全国岩石力学与工程学术大会论文集》;20041231;773-776页 * |
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| CN104034607A (en) | 2014-09-10 |
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