CN104007025A - Multifunctional tilt table device used for testing interfacial shear strength characteristics of geotechnical synthetic material - Google Patents
Multifunctional tilt table device used for testing interfacial shear strength characteristics of geotechnical synthetic material Download PDFInfo
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Abstract
The invention discloses a multifunctional tilt table device used for testing the interfacial shear strength characteristics of a geotechnical synthetic material. The multifunctional tilt table device comprises a testing stand, an inclined plane control mechanism, a shearing box unit, a vertical loading mechanism and a measurement and control system, wherein the inclined plane control mechanism drives a tilted plate of the testing stand through a motor so as to allow the tilted plate to rotate to any inclination angle and can fix the tilted plate at a certain inclination angle through hydraulic jacks, shearing boxes are placed on concave guide rails on the surface of the tilted plate, a geotechnical synthetic material sample is installed between upper and lower shearing boxes, multiple layers of inclined shearing interfaces are formed through rotation of the tilted plate, the vertical loading mechanism comprises two loading devices used for short-term and long-term characteristic testing of the interfaces, the measurement and control system composed of a sensor, a control and acquisition system and a computer carries out real-time monitoring on stress and displacement of the upper and lower shearing boxes and the sample, determines a critical interface instability inclination angle according to displacement and pull-up curve abrupt change points and calculates shear strength of each interface according to stress analysis. The multifunctional tilt table device can be used for short-term and long-term characteristic testing of a single layer or multiple layers of interfaces.
Description
Technical field
The present invention relates to a kind of Multifunctional oblique plate instrument of testing geosynthetics interface shearing strength characteristic, belong to hydro-structure and material test technical field.
Background technology
Owing to having, the differential deformation of adaptation ability is strong, the construction time is short, cost is low, save the advantages such as soil and low-carbon environment-friendly, and geomembrane is applied in rock-fill dams upstream face more and more as antiseepage body.Enrockment dam facing geomembrane anti-seepage body is generally comprised of multilayer materials such as bed course, composite geo-membrane (two cloth one films or a cloth one film+geotextile) and protective seams.Because the shearing strength at interface between the geosynthetics such as geomembrane and geotextile and earth rock material is lower, so unstable failure very easily occurs the dam face seepage body being comprised of multilayer material under different operating modes and loading condition.And between dam face seepage body different materials, interface shearing strength characteristic and failure mechanism are the bases of carrying out the design of dam facing geomembrane anti-seepage structure and stability analysis and evaluation.Failure mechanism for deep announcement enrockment dam facing geomembrane anti-seepage body; accurately calculate and evaluate antiseepage body stability; and economic, the effective antiskid safeguard measure of proposition; need to in antiseepage body between different geosynthetics and and bed course and protective seam earth rock material between the shearing strength research experiment at interface, thereby for engineering design with safety evaluation is provided fundamental basis and scientific basis.
In addition, the composite membrane being composited by long filament acupuncture geotextile/film/long filament acupuncture geotextile mainly adopting for current rock-fill dams antiseepage, its interface shearing strength is mainly provided by surperficial filament fiber and the friction between contact material and interlocking.When composite membrane and bed course or protective seam generation interaction, the filament fiber on outer geotextile surface is in stressed extended state.Because high polymer fiber has significant creeping characteristic under extended state, keeping under Long Term Contact friction and shear action with bedding material, its surperficial filament fiber is by experience stretching, strand restructuring and then produce the process of creep.This creep effect will change the passing in time of interfacial stress state, and interface shearing strength will be decayed in time.As can be seen here, adopting the interface short-term shear strength that conventional test obtains is relatively unsafe to dam slope design and dam face seepage body stability calculation and evaluation.Therefore at Long-term Shear Strength characteristic and the failure mechanism of considering to disclose under geotextile fiber creep effect composite geo-membrane-protective seam and course interface, for the design of dam facing geomembrane anti-seepage body and stability analysis and evaluation, be, necessary.
Before the present invention, the swash plate instrument test method that between general geosynthetics and earth rock material, the normal method adopting of interface shearing strength attribute testing mainly contains direct shear test, pull-out test method and abroad starts in recent years to adopt.It is horizontal direction that direct shear apparatus test in interface is relatively applicable to interface shearing power and shear displacemant, and normal pressure along interface constant and equally distributed interface shearing strength attribute testing.The interface that in test, generation is sheared normally people is what set, can not reflect the integral anti-shearing intensity that comprises multilayer interfacial structure; And in low normal pressure situation, the shearing strength that direct shear test obtains is often higher.Pull-out test is suitable near interface shearing strength attribute testing geosynthetics anchoring position, such as geomembrane anchoring end and reinforced soil retaining wall muscle material, the interface Study on strength under operating mode such as extract, but cannot simulate the interface mechanics proterties that dam facing tilts.So, traditional interface staight scissors and pull-out test method all cannot reflect dam face seepage body interface stress deformation state and corresponding boundary condition, and all cannot consider the composite geo-membrane geotechnological fabric fibre creep effect in surface and the impact that causes interface Long-term Shear Strength to reduce.
The test of swash plate instrument can be reproduced enrockment dam facing geomembrane anti-seepage body interface stress state and deformation failure pattern, is suitable for geomembrane anti-seepage body interface shearing strength attribute testing on dam facing.This test method is not yet listed in China's dependence test rules, but is used in correlative study work.Before the present invention, (Xu is superfine to be entitled as " the indoor shear test research of geosynthetics interface friction characteristics ", rock-soil mechanics, the 29th the 5th phase of volume in 2008) and " GCL and clay surface of contact experiment of friction performance research " (Li Xuening etc., operating technique, the 40th the 2nd phase of volume in 2011) scientific paper has all been developed the swash plate instrument for geosynthetics interface shearing strength attribute testing on slope.But these two kinds of swash plate instrument cannot meet the demand of dam facing geomembrane anti-seepage body interface shearing strength test under different operating modes and loading condition, and its deficiency is mainly manifested in the following aspects:
(1) automation equipment degree is lower, sample interface change of pitch angle also rotates swash plate jack-up by manual rotation threaded rod or Manual hydraulic jack, manual operation meeting causes the rotating speed of swash plate inhomogeneous, easily there is the rotation of great-jump-forward, test operation itself can affect the stability of sample, also affects the reliability of test findings;
(2) judgement of sample interface unstability is to observe artificially the angle reading between swash plate and surface level by side protractor when sample occurs to slide to realize, this reduces test findings reliability, also can produce error because of different operating personnel's response speed difference;
(3) can only test the shearing strength at individual layer interface, but for comprising multilayer interface dam facing geomembrane anti-seepage body, under different normal pressures and deformation state, in advance and do not know that unstability can occur at which interface, so existing swash plate instrument cannot be tested the shearing strength characteristic at multilayer interface in dam facing geomembrane anti-seepage body;
(4) short-term shear strength that can only test interface, cannot test the interface Long-term Shear Strength characteristic of considering under the creep effect of geosynthetics own.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned existing dam facing geomembrane anti-seepage body interface shear strength test technology, provide a kind of and can test geosynthetics and contact material interface short-term shear strength characteristic, can consider again the Multifunctional oblique plate instrument of geotextile surface fiber creep effect lower bound face Long-term Shear Strength and failure mechanism test.
The present invention realizes by the following technical solutions:
Test a Multifunctional oblique plate instrument for geosynthetics interface shearing strength characteristic, comprise testing table, inclined-plane control gear, shear box device, vertical load maintainer and TT&C system.Inclined-plane control gear can make the swash plate uniform rotation of testing table to arbitrary angle by motor, by hydraulic jack, can make swash plate be fixed on a certain inclination angle.The shear box that contact material is housed is placed on the spill guide rail of swash plate surface, and geosynthetics sample is installed between upper and lower shear box, by swash plate, is rotated and is formed the multilayer shear interface of inclination.Vertical load maintainer comprises short-term and long-term charger, is respectively used to interface short-term and long-time quality test.The TT&C system that pulling force sensor, displacement meter, control and acquisition system and computing machine form is carried out Real-Time Monitoring to the stressed and displacement of upper and lower shear box and sample, according to displacement and pull-up curve catastrophe point, interface unstability critical dip be can determine, and each interface shearing strength and relevant parameter gone out by Calculation and Analysis of Force.
Described testing table is comprised of base and swash plate, and base is the rectangular configuration that shaped steel is welded, and by expansion bolt, is fixed on floor, and the end of its length direction is provided with rotating shaft; Swash plate is " L " shape steel plate that is provided with stiffening rib, and swash plate is connected with base by rotating shaft and can freely rotates around the shaft.
Described inclined-plane control gear comprises that gantry support, stepper motor, two wire rope, two cover hydraulic jack and corresponding backing plates and force transmission joint form.Gantry support is positioned at the top of base and is fixed on its both sides, and two diagonal braces are installed to increase rigidity in gantry support bottom, and a stepper motor is installed at top, is wrapped in the top that two wire rope lower ends on motor are connected to swash plate.By Electric Machine Control, can in the short-term shear strength attribute testing of interface, make the swash plate rotation that remains a constant speed; By being connected to the cover of two on fixed-hinged support hydraulic jack, can in the Long-term Shear Strength attribute testing of interface, swash plate be fixed under default inclination angle.
Described shear box device is comprised of upper and lower shear box, normal direction load plate, ball and Fixed latches, and upper and lower shear box is the rectangular box that stainless steel is made, and down cut box right side wall is widened, and guarantees that in generation shear displacemant process, shear area is constant.Down cut box bottom is provided with two row's balls, by ball, can in the spill guide rail on swash plate surface, be free to slide.Filling test earth rock material in shear box, geosynthetics sample is arranged between two boxes, by driven by motor swash plate, is rotated and is realized the single or multiple lift inclination shear surface under certain inclination angle.
Described vertical load maintainer comprises short-term and long-term two cover chargers.Short-term charger mainly provides vertical load by the rectangle bloom being fixed in normal direction load plate in the short-term shear strength attribute testing of interface, the load applying as required (swash plate instrument mainly carries out the test under low normal direction load, and general law is less than 50kPa to load) is selected some rectangle blooms and uses long bolt to be directly anchored in normal direction load plate.Long-term charger comprises lever, disc counterweight, weight tray, vertical load bar and rotating hinge bearing.Lever is arranged on the crossbeam of gantry support, by counterweight, can to the inclined-plane under arbitrary angle, apply constant vertical load for a long time.Long-term load maintainer can be easy for installation and removal, and while carrying out interface short-term shear strength attribute testing, detachably gets off.
Described TT&C system is comprised of pulling force sensor, displacement meter, control and acquisition system and computing machine.Two pulling force sensors are fixed on the top of " L " shape swash plate, test respectively the pulling force that down cut box and geosynthetics sample are subject to; Displacement meter is arranged on swash plate bottom, is used for detecting the displacement of shear box.Pulling force and displacement detecting data are transferred to and are controlled and acquisition system by data line, and show on computers in real time by software interface.The control of stepper motor is also by controlling and acquisition system realizes, and system can arrange the inclination angle that different rotating speeds is realized swash plate, and shows not in real time the angle of inclination of swash plate in the same time by calculating.The displacement obtaining according to test and pull-up curve catastrophe point can be determined interface unstability critical dip, and go out each interface shearing strength and relevant parameter by Calculation and Analysis of Force.
Advantage of the present invention and effect are:
(1) present device can be carried out geosynthetics interface short-term shear strength attribute testing on slope, can consider again the interface Long-term Shear Strength attribute testing under Creep of Geosynthetics effect;
(2) short-term interface shearing strength attribute testing adopts the rotation of Electric Machine Control swash plate, speed of rotation can be set as required, make swash plate drive rotations that remain a constant speed of shear box and test interface, the automatic degree of controlling test is high, can eliminate the impact of swash plate rotation on sample stability and test findings;
(3) Long-term Shear Strength attribute testing in interface adopts lever mated counterweight to load, and method is easy, and not affected by environment and time restriction has higher reliability and stability in carrying out long-term load test;
(4) catastrophe point of employing Sensor monitoring each several part sample displacement and stressed change curve judges the unstability critical point at interface, and show on computers the angle of inclination, interface that unstability critical point is corresponding simultaneously, by the critical dip under different normal pressures, can determine interface shearing strength parameter.Relatively traditional observe and decide sample unstability artificially and utilization hornwork read the method at angle of inclination, interface, and stringency of test and reliability are higher;
(5) the present invention except carrying out the test of individual layer interface shearing strength as traditional swash plate instrument, stressed and the displacement of sample each several part is monitored being used in conjunction with different pulling force sensors and displacement meter, the shearing strength at a plurality of interfaces can be in single test, tested simultaneously, the research of multilayer interface shearing strength attribute testing can be carried out.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Protection scope of the present invention is not limited with embodiment, but is limited by claim.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Protection scope of the present invention is not limited with embodiment, but is limited by claim.
Fig. 1 is multilayer interface short-term shear strength attribute testing pattern declined board instrument front schematic view;
Fig. 2 is multilayer interface Long-term Shear Strength attribute testing pattern declined board instrument front schematic view;
Fig. 3 is individual layer interface shearing strength attribute testing pilot scale sample loading mode scheme of installation.
In figure: 1, base, 2, swash plate, 3, rotating shaft, 4, gantry support, 5, diagonal brace, 6, stepper motor, 7, wire rope, 8, down cut box, 9, upper shear box, 10, ball, 11, spill guide rail, 12, geosynthetics sample, 13, normal direction load plate, 14, rectangle bloom, 15, long bolt, 16, pulling force sensor, 17, displacement transducer, 18, control acquisition system, 19, computing machine, 20, lever, 21, weight tray, 22, disc counterweight, 23, hydraulic jack, 24, cushion block, 25, force transmission joint, 26, rotating hinge bearing-I, 27, bolt-I, 28, vertical load bar, 29, rotating hinge bearing-II, 30, bolt-II, 31, anchoring piece.
Embodiment
As shown in Figure 1 and Figure 2, a kind of Multifunctional oblique plate instrument of testing geosynthetics interface shearing strength characteristic, comprises testing table, inclined-plane control gear, shear box device, vertical load maintainer and TT&C system.Testing table is comprised of base 1 and swash plate 2, and the rectangular configuration that base 1 is welded for shaped steel is fixed on floor by expansion bolt, and the end of its length direction is provided with rotating shaft 3; Swash plate 2, for being provided with " L " shape steel plate of stiffening rib, being connected with base 1 by rotating shaft 3 and can 3 freely rotating around the shaft.Inclined-plane control gear is comprised of gantry support 4, diagonal brace 5, stepper motor 6, two wire rope 7, two cover hydraulic jack 23 and corresponding cushion blocks 24 and force transmission joint 25.Gantry support is positioned at the top of base 1 and is fixed on its both sides, and four diagonal braces 5 are installed to increase rigidity in gantry support 4 bottoms, and a stepper motor 6 is installed at top, is wrapped in the top that two wire rope 7 lower ends on stepper motor 6 are connected to swash plate 2.In interface short-term shear strength attribute testing as shown in Figure 1, by stepper motor 6, control and can make swash plate 2 rotation that remains a constant speed; In interface Long-term Shear Strength attribute testing as shown in Figure 2, two covers hydraulic jack 23 is side by side arranged on floor by fixed-hinged support-I 26 and bolt-I 27, coordinates cushion block 24 and force transmission joint 25 that swash plate 2 is fixed under default inclination angle.Shear box device is comprised of down cut box 8, upper shear box 9, normal direction load plate 13 and ball 10, and down cut box 8 and upper shear box 9 are the rectangular box that stainless steel is made.Down cut box 8 bottoms are provided with two row's balls 10, by ball 10, can in the spill guide rail 11 on swash plate surface, be free to slide.The interior filling test earth rock material of down cut box 8 and upper shear box 9, geosynthetics sample 12 is arranged between two boxes, and the single or multiple lift that the rotation by swash plate 2 realizes under certain inclination angle is sheared inclined-plane.When carrying out individual layer interface shearing strength attribute testing, adopt anchoring piece 31 geosynthetics sample 12 to be fixed on to the side of down cut box 9; When carrying out multilayer interface shearing strength attribute testing, geosynthetics sample 12 does not need to fix.Vertical load maintainer comprises short-term and long-term two cover chargers.It is that the vertical load at interface is provided by being fixed on rectangle bloom 14 in normal direction load plate 13 that short-term loads, and the load applying as required selects some rectangle blooms 14 also to use long bolt 15 to be directly anchored in normal direction load plate 13.Long-term load maintainer comprises lever 20, weight tray 21, disc counterweight 22, vertical load bar 28 and rotating hinge bearing-II29.Lever 20 is arranged on the crossbeam of gantry support 4, by disc counterweight 22, can apply to the inclined-plane under arbitrary angle constant long-term vertical load.Long-term load maintainer can be easy for installation and removal, and while carrying out interface short-term shear strength attribute testing, can disassemble.TT&C system is comprised of pulling force sensor 16, displacement meter 17, control and acquisition system 18 and computing machine 19.Two pulling force sensors 16 are fixed on the top of swash plate 2, monitor respectively the pulling force that down cut box 9 and geosynthetics sample 12 are subject to; Displacement meter 17 is arranged on swash plate 2 bottoms, is used for monitoring the displacement of shear box 8.Pulling force and displacement detecting data are transferred to and are controlled and acquisition system 18 by data line, and are presented in real time on computing machine 19 by software interface.The control of stepper motor 6 also by control and acquisition system 18 in control module realize, can the inclination angle that different rotating speeds is realized swash plate 2 need to be set according to test, and show not in real time the angle of inclination of swash plate 2 in the same time by calculating.The displacement obtaining according to test and pull-up curve catastrophe point can be determined interface unstability critical dip, and go out each interface shearing strength and relevant parameter by Calculation and Analysis of Force.
Embodiment 1: existing take an enrockment dam facing geomembrane anti-seepage body interface short-term shear strength attribute testing as example illustrate under Multifunctional oblique plate instrument short-term test pattern using method.Interface short-term shear strength attribute testing step is as follows:
(1) swash plate makes zero: by control and acquisition system 18 control step motors 6, made zero in swash plate 2 inclination angles, be level and be placed on base 1, and by the precalculated position on the spill guide rail 11 on down cut box 8 placement swash plate surfaces;
(2) sample fills and installs: in down cut box 8 by related request placement in layers course, until flush with down cut box 8 tops; Geosynthetics sample 12 is placed in to down cut box 8 upper surfaces, and launches tiling, if test individual layer interface shearing strength characteristic needs as shown in Figure 3, adopt anchoring piece 31 that geosynthetics sample 12 left parts are fixed on down cut box 8 left surfaces; Install after geosynthetics sample 12, upper shear box 9 is placed in to geosynthetics sample 12 tops, and press related request placement in layers protective layer material in upper shear box 9; During installation, require geosynthetics sample 12 not contact with upper shear box 9, down cut box 8 edges;
(3) connect and gather and control system: after sample completes consolidation process, two pulling force sensors 16 that are installed on swash plate 2 tops are connected with geosynthetics sample 12 with down cut box 8 respectively by wire rope 7; The displacement meter 17 that is installed on swash plate 2 bottoms is contacted with the downside of upper shear box 9; Then by pulling force sensor 16 and displacement meter 17 and data acquisition and controlling, be that 18 systems are connected, guarantee that acquisition channel is unimpeded;
(4) apply vertical load: in upper shear box 9 top placement methods to load plate 13, by three platoon leader's screw rod 15 insertions in the screw on load plate 13 surfaces, according to test, some need to be established to 14 of round-meshed rectangle steels and pass long bolt 15, and with nut, tighten fixing; Apply after vertical load, sample material starts fixed, and consolidation time can be with reference to relevant earthwork test rule requirement;
(5) test run: by the displacement and the pulling force data zero clearing that gather, then according to default speed of rotation control step motor 6 uniform rotation, by the system software interface in computing machine 19, show in real time displacement, pulling force and swash plate 2 inclination angle temporal evolution curves, and catastrophe point and the sample instability status of curve are observed in attention, when interface occurs after unstable failure, stop test save data;
(6) experimental data processing: the displacement obtaining by repairing experiment result, pulling force and swash plate 2 inclination angle temporal evolution curves, find respectively the catastrophe point of shear box 9 displacement curves, geosynthetics sample 12 pull-up curves and down cut box 8 suffered pull-up curves constantly corresponding, and find out swash plate corresponding to each catastrophe point 2 inclination angles.Wherein, swash plate 2 inclination angles corresponding to upper shear box 9 displacement curves and geosynthetics sample 12 pull-up curve catastrophe points are geosynthetics sample 12 face Instability inclination angles, the upper bound; Swash plate 2 inclination angles corresponding to the suffered pull-up curve catastrophe point of down cut box 9 are synthetic material sample 12 lower bound face Instability inclination angles.By the test findings under three groups of above different normal pressures, according to mole Coulomb criterion, can set up the angle of friction of each bed interface and the linear equation in two unknowns of cohesiveness, by three groups of solving simultaneous equations, can try to achieve the shear strength parameter at each interface;
Embodiment 2: existing take an enrockment dam facing geomembrane anti-seepage body interface Long-term Shear Strength attribute testing and illustrate that Multifunctional oblique plate instrument is for the using method under long-term test model as example.
Consider the general introduction of Creep of Geosynthetics effect lower bound face Long-term Shear Strength characteristic test method: each interface short-term shear strength value obtaining according to interface short-term shear strength attribute testing, according to dam slope design specifications, get respectively F1, F2, F3 ... one group of safety coefficient such as Fi, short-term shear strength parameter is sentenced respectively after corresponding safety coefficient, obtained α 1, α 2, α 3 after reduction ... one group of α i etc. stablize inclination angle; Then for each stable inclination angle, carry out the test of interface shearing-resistance under long duration load, test under the stable inclination angle of each bed interface under different safety coefficient correspondences whether because unstability and unstability required time occur the draw of material own.
(1) swash plate makes zero: with interface short-term shear strength attribute testing step (1);
(2) sample fills and installs: with interface short-term shear strength attribute testing step (2);
(3) connect and gather and control system: with interface short-term shear strength attribute testing step (3);
(4) long-term charger assembling: the left part of lever 20 is arranged on the crossbeam of gantry support 4 by rotating shaft, then vertical load bar 28 and rotating hinge bearing-II29 are arranged on to lever 20 relevant positions, with two support bolts-II30, are fixed in normal direction load plate 13; And weight tray 21 is suspended on to lever 20 right-hand end.
(5) apply vertical long duration load: first start stepper motor 6 rotations and swash plate 2 is turned to the stable inclination alpha i that needs test; Then close stepper motor 6, two hydraulic jack 23 are arranged on floor side by side by fixed-hinged support-I 26 and bolt-I 27, coordinate cushion block 24 and force transmission joint 25 that swash plate 2 is fixed under default stable inclination alpha i; According to test, some discs counterweight 22 need to be placed on and on weight tray 21, apply vertical long duration load, at vertical load along under the component effect of bevel direction, to there is shear action in each bed interface, also will there is creep effect in the fiber on geosynthetics sample 12 surfaces on interface simultaneously, this creep will make interfacial stress deformation state change in time, and then affect the variation of interface shearing strength.
(6) test run and data acquisition: by the displacement and the pulling force data zero clearing that gather, by 19 system software interface in computing machine, show in real time displacement, pulling force and swash plate 2 inclination angle temporal evolution curves, and note observing catastrophe point and the sample interface deformation state of curve; With reference to Creep of Geosynthetics test relevant criterion, if after on-test within 100 hours interface occur, after unstable failure, to stop test save data; If do not destroy yet for 100 hours, shut down computer 6, adopt data collecting instrument image data, observe a sample interface distortion and instability status later every day, and record data, until sample unstable failure or test reach 1000 hours.
(7) data processing and test findings: the displacement obtaining by repairing experiment result, pulling force and swash plate 2 inclination angle temporal evolution curves, can judge interface shearing strength whether to be subject to material creep effects and produce unstability, as there is unstability, illustrate that the stability of interface under corresponding safety coefficient does not meet the demands, and can be according to macromolecule creep theory time span of forecast generation unstability required time and failure probability.
Claims (1)
1. test a Multifunctional oblique plate instrument for geosynthetics interface shearing strength characteristic, comprise testing table, inclined-plane control gear, shear box device, vertical load maintainer and TT&C system, it is characterized in that:
Described testing table is comprised of base and swash plate, and base is the rectangular configuration that shaped steel is welded, and by expansion bolt, is fixed on floor, and the end of its length direction is provided with rotating shaft; Swash plate is " L " shape steel plate that is provided with stiffening rib, and swash plate is connected with base by rotating shaft;
Described inclined-plane control gear comprises gantry support, stepper motor, two wire rope, two cover hydraulic jack and corresponding backing plate and force transmission joints, gantry support is positioned at the top of base and is fixed on its both sides, two diagonal braces are installed to increase rigidity in gantry support bottom, a stepper motor is installed at top, is wrapped in the top that two wire rope lower ends on motor are connected to swash plate;
Described shear box device is comprised of upper and lower shear box, normal direction load plate, ball and Fixed latches, upper and lower shear box is the rectangular box that stainless steel is made, down cut box right side wall is widened, down cut box bottom is provided with two row's balls, by ball, in the spill guide rail on swash plate surface, be free to slide, filling test earth rock material in shear box, geosynthetics sample is arranged between two boxes, by driven by motor swash plate, is rotated and is realized the single or multiple lift inclination shear surface under certain inclination angle;
Described vertical load maintainer comprises short-term and long-term two cover chargers, short-term charger mainly provides vertical load by the rectangle bloom being fixed in normal direction load plate in the short-term shear strength attribute testing of interface, and the load applying is as required selected some rectangle blooms and used long bolt to be directly anchored in normal direction load plate; Long-term charger comprises lever, disc counterweight, weight tray, vertical load bar and rotating hinge bearing, and lever is arranged on the crossbeam of gantry support, by counterweight, can to the inclined-plane under arbitrary angle, apply constant vertical load for a long time;
Described TT&C system is comprised of pulling force sensor, displacement meter, control and acquisition system and computing machine, and two pulling force sensors are fixed on the top of " L " shape swash plate, and displacement meter is arranged on swash plate bottom.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3068763B2 (en) * | 1995-02-20 | 2000-07-24 | 元 松岡 | Single shear tester |
| CN101603903A (en) * | 2009-07-07 | 2009-12-16 | 河海大学 | Stacked ring type boxshear apparatus and to the method for testing composite liner material |
| CN201438167U (en) * | 2009-07-20 | 2010-04-14 | 长安大学 | Portable direct shear apparatus |
| CN102607966A (en) * | 2012-03-30 | 2012-07-25 | 王军 | Large contact surface characteristic direct shear apparatus with cycle loading function |
| CN103776696A (en) * | 2014-03-03 | 2014-05-07 | 中国科学院地质与地球物理研究所 | Drawing and shear testing device for geosynthetics |
-
2014
- 2014-05-08 CN CN201410194096.XA patent/CN104007025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3068763B2 (en) * | 1995-02-20 | 2000-07-24 | 元 松岡 | Single shear tester |
| CN101603903A (en) * | 2009-07-07 | 2009-12-16 | 河海大学 | Stacked ring type boxshear apparatus and to the method for testing composite liner material |
| CN201438167U (en) * | 2009-07-20 | 2010-04-14 | 长安大学 | Portable direct shear apparatus |
| CN102607966A (en) * | 2012-03-30 | 2012-07-25 | 王军 | Large contact surface characteristic direct shear apparatus with cycle loading function |
| CN103776696A (en) * | 2014-03-03 | 2014-05-07 | 中国科学院地质与地球物理研究所 | Drawing and shear testing device for geosynthetics |
Non-Patent Citations (5)
| Title |
|---|
| L.BRIANCON ET AL.: "Slope stability of lining systems-experimental modeling of friction at geosynthetic interfaces", 《GEOTEXTILES AND GEOMEMBRANES》 * |
| 徐超 等: "HDPE膜界面摩擦特性的斜板仪试验研究", 《岩土工程学报》 * |
| 徐超 等: "土工合成材料界面摩擦特性的室内剪切试验研究", 《岩土力学》 * |
| 李萍 等: "HDPE膜与土工布界面摩擦特性的斜板仪试验", 《兰州理工大学学报》 * |
| 李雪宁 等: "GCL与黏土接触面摩擦特性试验研究", 《施工技术》 * |
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