CN201449359U - Superposed ring type dual-purpose (direct-shear and single-shear) shear apparatus - Google Patents
Superposed ring type dual-purpose (direct-shear and single-shear) shear apparatus Download PDFInfo
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- CN201449359U CN201449359U CN2009200472632U CN200920047263U CN201449359U CN 201449359 U CN201449359 U CN 201449359U CN 2009200472632 U CN2009200472632 U CN 2009200472632U CN 200920047263 U CN200920047263 U CN 200920047263U CN 201449359 U CN201449359 U CN 201449359U
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Abstract
The utility model provides a superposed ring type shear apparatus and a testing method thereof. The main body part of the superposed ring type shear apparatus comprises an upper shear box and a lower shear box, and further comprises a superposed ring group superposed between the lower shear box and the upper shear box; the lower shear box is connected with a horizontal hydraulic cylinder through a hydraulic connecting rod, and a rigid bottom plate is fixedly connected with the bottom part of the lower shear box; a roller is arranged between the rigid bottom plate and a frame base; and a superposed ring side wall is in contact with a working terminal of a horizontal displacement sensor. When the apparatus is utilized for a test, a composite liner material to be tested is arranged in the superposed lower shear box, and a superposed ring or the upper shear box respectively, the uppermost superposed ring or the upper shear box is fixed on the machine frame, and the test can start. The shear apparatus provided by the utility model overcomes the limitation that the traditional testing apparatus only can fix the shear interface only when carrying out an indoor test to a liner system of a sanitary landfill, and can simultaneously observe and test the shift of the thinnest sliding surface in a sample between contact surfaces made of different geo-technical materials when different vertical loads are applied.
Description
Technical field
The utility model belongs to the technical field of mechanical characteristic between the different geotechnological combinations of materials of test, particularly relates to a kind of boxshear apparatus of sanitary filling field composite liner material mechanics of system characteristic and test method of utilizing this boxshear apparatus to test of testing.
Background technology
The a large amount of generations of modern life rubbish and the anxiety of land resource, high capacity is set up in urgent requirement, the large-scale sanitary filling field of high safety.Therefore, under the condition of high pressure, big slope angle, foundation can reflect truly that the mathematical model of compound lining interface constitutive relation is of great importance to the large-scale sanitary landfill field stability of accurate analysis.The liner system of modern sanitary filling field mainly contains geomembrane, geotextile, geonet, geotechnological material and sands such as GCL liner, compositions such as clay.And to study mechanical characteristic between the different geotechnological materials, just must carry out staight scissors, simple shear, block shear test to the combination of the geotechnological material of difference.Staight scissors, the shear test of the geotechnological storeroom of promptly two-layer difference; Simple shear, promptly three layers of geotechnological material of difference carry out shear test; The whole shearing promptly according to the actual liner laying order of landfill yard, got same geotechnological material and stacked in proper order and test in test apparatus.Common geotechnological characteristic of material mechanics testing tool mainly contains (1) and improves direct shear apparatus at present, and the specimen size of conventional boxshear apparatus is generally smaller, and shear displacemant is generally less than 1 centimetre, and along with the carrying out of shearing, shear area progressively reduces.The geotechnological material area of improving the stickup of direct shear apparatus lower wall is bigger than the area of last dish shear box, and in shear history, last disk material is sliding on the disk material down all the time, thereby shear area is remained unchanged like this.Its shortcoming mainly contains: solved the shear area variation issue though improve direct shear apparatus, the same with direct shear apparatus, it can only carry out simple shear test, then can't be suitable for for the multilayer interface conditions, and exist size effect; There are certain friction in last shear box and lower floor's shear box geotechnique storeroom.(2) large-scale direct shear apparatus has steel ball to reduce friction between the two-layer shear box, be mainly used to measure the shearing strength of rectangular large area sample; Because the pond of an aquation sample is arranged at large-scale direct shear apparatus bottom, test is substantially all carried out in water, therefore mainly is applicable to the contact strength research between the soil and geosynthetics under the saturation conditions.(3) torsional shear instrument, the torsional shear instrument can produce infinitely-great displacement in one direction, and shear area remains constantly, can record the remaining shear resistance between the different contact interfaces.Its shortcoming has: specimen size is generally less, and tangible size effect is arranged; Torsion shear apparatus is that hoop is sheared, be suitable for each shearing between uniform geomembrane and soil, and for geotextile and geonet, because the production of sample and preparation direction are not hoops, therefore there is the difference on the shear direction, must causes the difference of test findings; (4) swash plate instrument.The swash plate instrument uses theoretical simple, can obtain bigger relative displacement, and then help obtaining of remaining peak value, and manufacturing and cost of use are cheap, but it is applicable to the situation that normal stress is less, and is inapplicable for the situation that pressure is bigger.
Summary of the invention
The defective that the utility model exists at above-mentioned testing tool: the test interface is single, can only carry out the staight scissors test, has size effect, is unsuitable for various geotechnological materials are tested.The utility model provide a kind of not only can staight scissors, also can carry out simple shear, integral body is cut, avoid size effect and the stacked ring type boxshear apparatus that can test the composite pad system performance that various geotechnological materials are formed and the method for utilizing this instrument to test, have a plurality of shear interface in the test, reflected the actual conditions of actual sanitary filling field composite pad system more truly.
For solving above technical matters, the utility model adopts following technical scheme:
The dual-purpose boxshear apparatus of stacked ring type staight scissors simple shear of the present utility model, comprise frame, equipment data acquisition analyzing, hydraulic control device, the down cut box, last shear box, perpendicular phase hydraulic jack, the horizontal hydraulic pressure oil cylinder, the vertical displacement sensor, horizontal displacement sensors, described perpendicular phase hydraulic jack, the horizontal hydraulic pressure oil cylinder is fixedly mounted on the frame, and link to each other with hydraulic control device with equipment data acquisition analyzing, perpendicular phase hydraulic jack hydraulic pressure rod end is connected with cover plate, cover plate upper surface and vertical displacement working sensor end in contact, the vertical displacement sensor, horizontal displacement sensors links to each other with equipment data acquisition analyzing by data line, it is characterized in that: also comprise folded ring group, should folded ring group be stacked and placed on above-mentioned down cut box, between the last shear box, described down cut box links to each other with above-mentioned horizontal hydraulic pressure oil cylinder by hydraulic connecting rod, and be fixed with stiff baseplate in down cut box bottom, be provided with roller bearing between stiff baseplate and the gantry base, described folded ring-side wall contacts with above-mentioned horizontal displacement sensors working end, and a folded ring group folded ring is topmost fixed by frame.
Be to reduce instrument error, the end face of the utility model single folded ring in down cut box, folded ring group, on the end face of shear box be equipped with ball.For being accurately positioned in single folded ring in the folded ring group, down cut box, going up the shear box sidewall and be provided with pilot hole vertically.
By above technical scheme, can realize following beneficial effect:
(1) can carry out the test of many clocks, staight scissors, simple shear, the whole shearing, single test can obtain the slide displacement at a plurality of interfaces, can judge plane of weakness in the whole liner system with this;
(2) by applying different pressure at right angles, just be equal to the burden pressure of simulating sanitary filling field, the weakest slipping plane can change, and can observe the weakest slipping plane and how shift in battery of tests, presses close to on-site actual situations more;
(3) employing level and vertical displacement sensor, test figure is directly obtained by equipment data acquisition analyzing, horizontal displacement sensors is made up of one group of several sensor that are fixed together, by observing the variation of the data that each displacement transducer collects, can find each metastatic rule and failure law of the weakest slipping plane;
(4) instrument is up and down between the shear box, and between the different folded ring, embedding has steel ball, and coating lubricating oil, has reduced the instrument error of test; Specimen size is big, can not consider size effect.
Description of drawings
Fig. 1 is a stacked ring type boxshear apparatus structural representation of the present utility model;
Fig. 2 is shear box on the stacked ring type boxshear apparatus of the present utility model, folded ring, down cut box vertical view;
Fig. 3 is shear box on the stacked ring type boxshear apparatus of the present utility model, folded ring, down cut box front view;
Fig. 4 carries out the stress one displacement relation figure of block shear test for utilization the utility model instrument.
Wherein 1 frame, 2 equipment data acquisition analyzings, 3 hydraulic control devices, 4 roller bearings, 5 stiff baseplates, 6 down cut boxes 7 are folded shear box 9 cover plates 10 vertical hydraulic jack 11 horizontal hydraulic pressure oil cylinders 12 vertical displacement sensors 13 horizontal displacement sensors 14 pilot holes on the ring 8
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As shown in Figure 1, stacked ring type boxshear apparatus of the present utility model comprises frame 1, equipment data acquisition analyzing 2, hydraulic control device 3, down cut box 6, last shear box 8, perpendicular phase hydraulic jack 10, horizontal hydraulic pressure oil cylinder 11, vertical displacement sensor 12, horizontal displacement sensors 13, described perpendicular phase hydraulic jack 10, horizontal hydraulic pressure oil cylinder 11 is fixedly mounted on the frame 1, and link to each other with hydraulic control device 3 with equipment data acquisition analyzing 2, perpendicular phase hydraulic jack 10 hydraulic pressure rod ends are connected with cover plate 9, cover plate 9 upper surfaces contact with vertical displacement sensor 12 working ends, cover plate 9 is pressed on the composite liner material of shearing ring 8 or folded ring 7 inside, vertical displacement sensor 12, horizontal displacement sensors 13 links to each other with equipment data acquisition analyzing 2 by data line, it is characterized in that: also comprise folded ring 7, should be stacked and placed on above-mentioned down cut box 6 by folded ring 7, between the last shear box 8, described down cut box 6 links to each other with above-mentioned horizontal hydraulic pressure oil cylinder 11 by hydraulic connecting rod, and be fixed with stiff baseplate 5 in down cut box 6 bottoms, be provided with roller bearing 4 between stiff baseplate 5 and frame 1 base, described folded ring 7 sidewalls contact with above-mentioned horizontal displacement sensors 13 working ends, and the folded ring of topmost one is fixing by frame 1.
Be respectively down cut box, folded ring, go up the vertical view and the front view of shear box as Fig. 2, Fig. 3, the sidewall of going up shear box, down cut box, folded ring among the figure is provided with pilot hole 14 vertically, and last shear box, down cut box all are 300 millimeters of internal diameters, thick 120 millimeters; Totally six of folded ring groups 7,300 millimeters of internal diameters, wherein five is the steel loop of thick 20 millimeters (being used for clay or sand etc.) or 1.5 millimeters (being used for geotechnological material), topmost one is thick 50 millimeters steel loop.
Below be the method specific embodiment that utilizes the utility model boxshear apparatus that composite liner material is tested:
Embodiment one:
The material of tradition compacting clay liner system carries out block shear test, applies to two folded rings in the test, is used for gluing geotextile and geomembrane respectively.Geotextile and geomembrane are bonded on the thick folded ring of 1.5mm in the folded ring group 7 with glue respectively; Sand places down cut box 6, and the folded ring of shearing that is stained with geotextile places on the sand, puts geonet on it, and the folded ring of shearing that is stained with geomembrane places on the geonet, the compacting clay is packed into go up in the shear box 8 at last.The hydraulic connecting rod of horizontal hydraulic pressure oil cylinder 11 is linked to each other with down cut box 6, and bolt is tightened; Load onto horizontal displacement sensors 13, and it is alignd with folded ring in the folded ring group 7, load onto vertical displacement sensor 12, it is contacted with cover plate 9, check whether sensor is sensitive; Connect equipment data acquisition analyzing 2 and hydraulic control device 3; Apply pressure at right angle by vertical hydraulic jack 10,, can apply different pressure at right angles according to testing requirements; Apply horizontal force by horizontal hydraulic pressure oil cylinder 11, begin test.
As shown in Figure 4, carry out the stress-displacement relation figure of block shear test for utilization the utility model instrument.
Embodiment two:
If carry out direct shear test, then do not need to use folded ring, change folded ring into whole last shear box, carry out staight scissors.Interface staight scissors with geonet-geomembrane are example: because down cut box 6 thick 120 millimeters can't directly glue geomembrane, so add the rigidity iron block as support in down cut box 6, put a rigid plate again on the rigidity iron block, fixedly be bonded at geomembrane on the rigid plate; Geonet is bonded on another piece rigid plate, places in the shear box 8, and geonet is closely contacted with geomembrane.
Embodiment three:
The combined interface simple shear test, the example that is combined as with geonet-geotextile-sand, geonet is bonded at glue and places down cut box 6 on the rigid plate, add rigidity iron block rigidity of support plate in the down cut box 6, geotextile is bonded at 502 glue and shears folded ring upward (because geotechnological material itself has only several millimeters thick, at this moment usefulness is the folded ring of 1.5mm), place on the geonet the folded ring that sand is seated in and places folded ring group 7 thickness on the geotextile is 20mm.
Claims (3)
1. dual-purpose boxshear apparatus of stacked ring type staight scissors simple shear, comprise frame (1), equipment data acquisition analyzing (2), hydraulic control device (3), down cut box (6), last shear box (8), perpendicular phase hydraulic jack (10), horizontal hydraulic pressure oil cylinder (11), vertical displacement sensor (12), horizontal displacement sensors (13), described perpendicular phase hydraulic jack (10), horizontal hydraulic pressure oil cylinder (11) is fixedly mounted on the frame (1), and link to each other with hydraulic control device (3) with equipment data acquisition analyzing (2), perpendicular phase hydraulic jack (10) hydraulic pressure rod end is connected with cover plate (9), cover plate (9) upper surface contacts with vertical displacement sensor (12) working end, vertical displacement sensor (12), horizontal displacement sensors (13) links to each other with equipment data acquisition analyzing (2) by data line, it is characterized in that: also comprise folded ring group (7), should folded ring group (7) be stacked and placed on above-mentioned down cut box (6), between the last shear box (8), described down cut box (6) links to each other with above-mentioned horizontal hydraulic pressure oil cylinder (11) by hydraulic connecting rod, and be fixed with stiff baseplate (5) in down cut box (6) bottom, be provided with roller bearing (4) between stiff baseplate (5) and frame (1) base, described folded ring group (7) sidewall contacts with above-mentioned horizontal displacement sensors (13) working end, and folded ring group (a 7) folded ring topmost is fixing by frame (1).
2. the dual-purpose boxshear apparatus of stacked ring type staight scissors simple shear according to claim 1 is characterized in that: single folded ring end face, last shear box (8) end face are equipped with ball in described down cut box (6) end face, the folded ring group (7).
3. the dual-purpose boxshear apparatus of stacked ring type staight scissors simple shear according to claim 1 is characterized in that: single folded ring-side wall, last shear box (8) sidewall are provided with pilot hole (14) vertically in described down cut box (6) sidewall, the folded ring group (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200472632U CN201449359U (en) | 2009-07-07 | 2009-07-07 | Superposed ring type dual-purpose (direct-shear and single-shear) shear apparatus |
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| CN2009200472632U CN201449359U (en) | 2009-07-07 | 2009-07-07 | Superposed ring type dual-purpose (direct-shear and single-shear) shear apparatus |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269676A (en) * | 2011-05-12 | 2011-12-07 | 河海大学 | High-precision geotechnical simple shear apparatus and use method thereof |
| CN102494958A (en) * | 2011-12-12 | 2012-06-13 | 四川大学 | Assembled size-changeable double-face shear apparatus |
| CN103018116A (en) * | 2012-12-06 | 2013-04-03 | 昆明理工大学 | Multi-layer shearing direct shear device |
| CN103454161A (en) * | 2013-08-15 | 2013-12-18 | 西安理工大学 | Dynamic simple shear apparatus of servo cylinder-driven cubic articulated mechanism |
| CN105203408A (en) * | 2015-09-15 | 2015-12-30 | 湖南工业大学 | Shear box for large cycled single shear test |
| CN105571957A (en) * | 2016-02-02 | 2016-05-11 | 河海大学 | Large model box for measuring shear strength of coarse-grained soil and use method |
| CN106896021A (en) * | 2017-04-14 | 2017-06-27 | 南京泰克奥科技有限公司 | A kind of full-automatic remaining staight scissors boxshear apparatus and its operating method |
| CN106940274A (en) * | 2017-04-14 | 2017-07-11 | 南京泰克奥科技有限公司 | A kind of full-automatic rheology direct shear apparatus and its Examination on experimental operation |
| CN107063893A (en) * | 2017-04-14 | 2017-08-18 | 南京泰克奥科技有限公司 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling and its operating method |
| CN109443951A (en) * | 2018-10-17 | 2019-03-08 | 河海大学 | A kind of function of the axial asynchronous torsional deflection in measurement multilayer thin body material edge folds ring |
| CN109975132A (en) * | 2019-04-15 | 2019-07-05 | 河北建筑工程学院 | A kind of stacked ring type direct shear apparatus |
| CN110057691A (en) * | 2019-05-14 | 2019-07-26 | 东北大学 | A kind of novel visual simple shear device measuring soil-structure interfacial characteristics |
| CN110940598A (en) * | 2019-12-20 | 2020-03-31 | 河海大学 | Multifunctional frozen soil circulation single shear test device and test method |
| CN112213207A (en) * | 2020-10-15 | 2021-01-12 | 中国矿业大学 | Large visual direct shear experiment platform for solid filling materials |
| CN117288603A (en) * | 2023-11-24 | 2023-12-26 | 中国电建集团华东勘测设计研究院有限公司 | Up-to-down resistance type multi-layer high-efficiency ring shear tester and application thereof |
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2009
- 2009-07-07 CN CN2009200472632U patent/CN201449359U/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269676A (en) * | 2011-05-12 | 2011-12-07 | 河海大学 | High-precision geotechnical simple shear apparatus and use method thereof |
| CN102494958A (en) * | 2011-12-12 | 2012-06-13 | 四川大学 | Assembled size-changeable double-face shear apparatus |
| CN103018116A (en) * | 2012-12-06 | 2013-04-03 | 昆明理工大学 | Multi-layer shearing direct shear device |
| CN103018116B (en) * | 2012-12-06 | 2015-01-28 | 昆明理工大学 | Multi-layer shearing direct shear device |
| CN103454161A (en) * | 2013-08-15 | 2013-12-18 | 西安理工大学 | Dynamic simple shear apparatus of servo cylinder-driven cubic articulated mechanism |
| CN103454161B (en) * | 2013-08-15 | 2015-06-24 | 西安理工大学 | Dynamic simple shear apparatus of servo cylinder-driven cubic articulated mechanism |
| CN105203408A (en) * | 2015-09-15 | 2015-12-30 | 湖南工业大学 | Shear box for large cycled single shear test |
| CN105571957A (en) * | 2016-02-02 | 2016-05-11 | 河海大学 | Large model box for measuring shear strength of coarse-grained soil and use method |
| CN106896021A (en) * | 2017-04-14 | 2017-06-27 | 南京泰克奥科技有限公司 | A kind of full-automatic remaining staight scissors boxshear apparatus and its operating method |
| CN106940274A (en) * | 2017-04-14 | 2017-07-11 | 南京泰克奥科技有限公司 | A kind of full-automatic rheology direct shear apparatus and its Examination on experimental operation |
| CN107063893A (en) * | 2017-04-14 | 2017-08-18 | 南京泰克奥科技有限公司 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling and its operating method |
| CN106940274B (en) * | 2017-04-14 | 2023-08-22 | 南京泰克奥科技有限公司 | Full-automatic rheological straight shear device and experimental operation method thereof |
| CN106896021B (en) * | 2017-04-14 | 2023-08-22 | 南京泰克奥科技有限公司 | Full-automatic residual direct shear shearing instrument and operation method thereof |
| CN107063893B (en) * | 2017-04-14 | 2023-08-11 | 南京泰克奥科技有限公司 | Temperature-suction-stress coupling multifunctional direct shear single shear test system and operation method thereof |
| CN109443951B (en) * | 2018-10-17 | 2021-09-28 | 河海大学 | Function stack ring for measuring axial asynchronous torsional deformation of multilayer thin material |
| CN109443951A (en) * | 2018-10-17 | 2019-03-08 | 河海大学 | A kind of function of the axial asynchronous torsional deflection in measurement multilayer thin body material edge folds ring |
| CN109975132A (en) * | 2019-04-15 | 2019-07-05 | 河北建筑工程学院 | A kind of stacked ring type direct shear apparatus |
| CN110057691A (en) * | 2019-05-14 | 2019-07-26 | 东北大学 | A kind of novel visual simple shear device measuring soil-structure interfacial characteristics |
| CN110940598B (en) * | 2019-12-20 | 2021-03-16 | 河海大学 | Multifunctional frozen soil circulation single shear test device and test method |
| CN110940598A (en) * | 2019-12-20 | 2020-03-31 | 河海大学 | Multifunctional frozen soil circulation single shear test device and test method |
| CN112213207A (en) * | 2020-10-15 | 2021-01-12 | 中国矿业大学 | Large visual direct shear experiment platform for solid filling materials |
| CN112213207B (en) * | 2020-10-15 | 2021-08-27 | 中国矿业大学 | Large visual direct shear experiment platform for solid filling materials |
| CN117288603A (en) * | 2023-11-24 | 2023-12-26 | 中国电建集团华东勘测设计研究院有限公司 | Up-to-down resistance type multi-layer high-efficiency ring shear tester and application thereof |
| CN117288603B (en) * | 2023-11-24 | 2024-03-08 | 中国电建集团华东勘测设计研究院有限公司 | Up-to-down resistance type multi-layer high-efficiency ring shear tester and application thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20120707 |