CN108801806A - A kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument - Google Patents
A kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument Download PDFInfo
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- CN108801806A CN108801806A CN201810414772.8A CN201810414772A CN108801806A CN 108801806 A CN108801806 A CN 108801806A CN 201810414772 A CN201810414772 A CN 201810414772A CN 108801806 A CN108801806 A CN 108801806A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The present invention relates to Geotechnical Engineering fields, more particularly to a kind of multifunctional large-scale temperature control is saturated staight scissors simple shear double-purpose instrument, shear box including mainframe, for placing sample, the water tank for placing shear box, Vertical loading mechanism, horizontal addload mechanism and displacement meter, heat insulation layer is equipped with outside the water tank, the inner wall of the water tank is equipped with heater, temperature sensor；The shear box is spliced and combined by upper shear box and down cut box, and the side of the upper shear box is held out against with the horizontal reacting force seat being arranged on mainframe, and the other side of the down cut box and the end of the horizontal addload mechanism are held out against；It is held out against at the top of Vertical loading mechanism end and the upper shear box.The present invention can be used under experimental study condition of different temperatures interface shearing strength, soil and geosynthetics interface shearing strength, coarse-grained soil and rubbish soil classifiction between geosynthetics；Efficiently solve the fixation problem of geosynthetics.
Description
Technical field
The present invention relates to Geotechnical Engineering field more particularly to a kind of multifunctional large-scale temperature control saturation staight scissors simple shear are dual-purpose
Instrument.
Background technology
One of the main means that large-scale landfill yard is China's processing domestic waste problem are built, needle pierces sodium bentonite
The geosynthetics such as waterproof blanket (GCL) and geomembrane (GM) are increasingly being applied to the bottom liner of contemporary health landfill yard
In structure.Since the shearing strength of interface between geosynthetics and geosynthetics and soil layer interface is relatively low, research
The interface shearing strength of geosynthetics is significant to the stability for analyzing landfill yard.
Since the biochemical degradation of refuse soil will produce a large amount of heat the temperature of bottom liner is increased, normally runs
Landfill yard bottom temp up to 60 DEG C, and the temperature of lining is up to 70 DEG C or higher under special circumstances.Geosynthetics
With the frictional force very little of smooth metal surface, it is not avoided that sample in shear history only with the fixed fixture mode in both ends
Local Sliding.
Based on the above considerations, the present invention devises a kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of multifunctional large-scale temperature controls to be saturated staight scissors simple shear
Double-purpose instrument can be used under experimental study condition of different temperatures interface shearing strength between geosynthetics, soil and geotechnique's synthesis
Material interface shearing strength, coarse-grained soil and rubbish soil classifiction；The fixation for efficiently solving geosynthetics is asked
Topic preferably studies the interface shearing strength of geosynthetics.
In order to achieve the object of the present invention, the technical solution adopted by the present invention is：
The invention discloses a kind of multifunctional large-scale temperature control be saturated staight scissors simple shear double-purpose instrument, including mainframe, for placing
The shear box of sample, the water tank for placing shear box, Vertical loading mechanism, horizontal addload mechanism and displacement meter, the water
Heat insulation layer is equipped with outside case, the inner wall of the water tank is equipped with heater, temperature sensor；The shear box is by upper shearing
Box and down cut box splice and combine, and the side of the upper shear box is held out against with the horizontal reacting force seat being arranged on mainframe,
The other side of the down cut box and the end of the horizontal addload mechanism are held out against；Vertical loading mechanism end with it is described on
It is held out against at the top of shear box.
The one side wall of the water tank is equipped with for the first through hole with the first rigid transmission rod cooperation sliding, it is described on cut
It cuts and is equipped with the first L-shaped mandril below the one side wall of box, one end of the described first rigid transmission rod is held out against with horizontal reacting force seat,
The end of the other end and the first mandril is held out against；Another side wall of the water tank is equipped with to be slided for coordinating with horizontal stiffness transmission rod
The one side wall lower section of the second dynamic through-hole, the down cut box is equipped with the second L-shaped mandril, the horizontal stiffness transmission rod
One end and the end of the second mandril are held out against, and the other end and the end of horizontal addload mechanism are held out against；It is set in the tank lid of the water tank
It is useful for the third through-hole with the cooperation sliding of perpendicular rigid transmission rod, one end of the perpendicular rigid transmission rod and upper shear box top
The upper shear box caping in portion is tight, and the other end and the end of the Vertical loading mechanism are held out against；Described first, horizontal and perpendicular rigid
Transmission rod sets flanged outward cylindrical structure in both ends.
Vertical, the horizontal addload mechanism is hydraulic cylinder, and the piston rod end of the horizontal addload mechanism is equipped with to be connected therewith
The jacking block connect, the end of the jacking block is equipped with the groove to match with the horizontal stiffness transmission rod end bosses shape, described
The arc-shaped structure in section of groove.
The upper shear box is in the square structure of hollow base opening, and the down cut box is rectangular in hollow tip opening
Structure is equipped with ball row of cracking between the top and the bottom of down cut box of the upper shear box；It is set in the upper and lower shear box
It is useful for the pointed tooth fixed plate of clamping sample.
The ball that cracks arranges the structure that is square, and the top for cracking ball row is equipped with ball, and bottom is equipped with insertion piece；
Axially parallel roof is equipped with the limit for insertion piece insertion with the horizontal addload mechanism at the top of the down cut box
Hole.
The cross sectional shape of the pointed tooth fixed plate is identical as the intracavity section shape of upper and lower shear box, the pointed tooth
It is evenly distributed with pointed tooth in the one side wall of fixed plate；The inner cavity top of the pointed tooth fixed plate and upper and lower shear box and bottom it
Between be equipped with cushion block.
Further include preventing sticking up device, anti-stick up is placed including preventing sticking up bar, preventing sticking up bolt, and the tank lid is equipped with for preventing
It sticks up the anti-of bar insertion and sticks up hole, the anti-top top for sticking up the upper shear box that Kong Houyu is placed in water tank is inserted into described anti-one end for sticking up bar
Tightly, the other end is equipped with section more than the anti-limiting section for sticking up bar section；The anti-bolt that sticks up includes screw rod and is arranged in spiral shell
The mandril of bar bottom, the screw thread outside the screw rod match with the threaded hole being arranged on the mainframe, the mandril
End can be held out against with the limiting section.
The displacement meter includes vertical displacement meter and horizontal displacement meter, and mainframe is fixed in one end of the vertical displacement meter
It on 1, is contacted at the top of the other end and vertical displacement meter contact bar, the tank lid is equipped with inserts for vertical displacement meter contact bar
The bottom end of the contact hole entered, the vertical displacement meter contact bar is connected with the upper shearing box cover；It is set on the side wall of the water tank
It is useful for the bolt hole of shank of bolt insertion, one end of the shank of bolt is connected with the down cut box side wall；The horizontal displacement
Meter is set to the shift length for measuring the shank of bolt outside water tank.
Fixed seat is equipped with below the side wall of the water tank, the fixed seat and the connecting seat being arranged on mainframe pass through solid
Determine bolt to be connected.
It is arranged equipped with the axis of rolling bottom of the down cut box.
The beneficial effects of the present invention are：
1. the present invention can be used under experimental study condition of different temperatures interface shearing strength, soil between geosynthetics
With geosynthetics interface shearing strength, coarse-grained soil and rubbish soil classifiction；
2. the present invention efficiently solves the fixation problem of geosynthetics by the way that pointed tooth fixed plate is arranged, preferably grind
Study carefully the interface shearing strength of geosynthetics；
3. of the invention cracked between ball arranges the upper and lower shear box of guarantee by setting forms rolling working condition, Ke Yigen
Cracking height and adapt to the needs of geosynthetics simple shear test between upper and lower shear box is selected according to actual conditions.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is arranged for the ball that cracks in the present invention and the installation diagram of down cut box；
Fig. 3 is the structural schematic diagram of upper and lower shear box and ball row of cracking in the present invention；
Fig. 4 is the structural schematic diagram of pointed tooth fixed plate in the present invention；
Fig. 5 is the vertical view of tank lid in the present invention；
Fig. 6 is the part-structure schematic diagram of the present invention；
Fig. 7 is the right view of water tank in the present invention.
In figure, 1 mainframe, 11 horizontal reacting force seats, 12 connecting seats, shear box on 2,21 first mandrils shear box cover on 22,
3 down cut boxes, 31 second mandrils, 32 limit holes, 33 axis of rolling row, 4 water tanks, 41 first rigid transmission rods, 42 horizontal stiffnesses pass
Power bar, 43 perpendicular rigid transmission rods, 44 tank lid, 45 vertical displacement meters contact bar, 46 bolts hole, 47 fixed seats, 5 Vertical loadings
Mechanism, 6 horizontal addload mechanisms, 61 jacking blocks, 62 grooves, 7 crack ball row, 71 balls, 72 insertion pieces, 8 pointed tooth fixed plates, 81 point
Tooth, 91 prevent sticking up bar, and 92 prevent sticking up bolt, 93 limiting sections, 94 screw rods, 95 mandrils, 96 threaded holes.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples：
Referring to Fig. 1-Fig. 7.
The invention discloses a kind of multifunctional large-scale temperature control be saturated staight scissors simple shear double-purpose instrument, including mainframe 1, for placing
The shear box of sample, the water tank 4 for placing shear box, Vertical loading mechanism 5, horizontal addload mechanism 6 and displacement meter, it is described
4 outside of water tank is equipped with heat insulation layer, and the inner wall of the water tank 4 is equipped with heater, temperature sensor；The shear box is by upper
Shear box 2 and down cut box 3 splice and combine, the side of the upper shear box 2 and the horizontal reacting force being arranged on mainframe 1
Seat 11 is held out against, and the other side of the down cut box 3 and the end of the horizontal addload mechanism 6 are held out against；The Vertical loading mechanism 5
End and the top of the upper shear box 2 are held out against, and are heated the water in it by the heater on 4 inner wall of water tank, when temperature passes
When the water that sensor measures in water tank 4 reaches required temperature, stop heater, the water in water tank 4 is carried out by heat insulation layer
Temperature controls, to realize saturation temperature control shearing test；Preferably, heat insulation layer is ESP heat insulation layers.
The course of work that shearing test is carried out to soil sample is as follows：It is put into one piece of porous disc in down cut box 3, then above cutting
It cuts box 2 to be placed on down cut box 3, is connect upper shear box 2 with down cut box 3 with positioning bolt, the soil sample of required experiment is filled
Enter in shear box, porous disc is placed on soil sample, shear box is then packed into 4 Inner of water tank of constant temperature closing saturation, installation
Water tank 4 is pushed into mainframe 1 by tank lid 44, is installed displacement meter, is removed positioning bolt after installing, controlled by computer
Vertical loading mechanism 5 and horizontal addload mechanism 6, at the same can collect on computers the vertical displacement of soil sample and horizontal displacement with
And corresponding vertical load and shear stress；
The course of work that shearing test is carried out to geosynthetics compound interface is as follows：It will be put into not in down cut box 3
The porous cushion block of rust steel and pointed tooth fixed plate 8, and pointed tooth fixed plate 8 is made just to reach the top side location of down cut box 3, in pointed tooth
It is sequentially laid with multilayer geosynthetics in fixed plate 8, suitable dimension is selected according to the overall thickness of multilayer geosynthetics
Upper shear box 2 is packed into instrument and places into the small point of distribution in the multilayer geosynthetics top surface laid by the ball that cracks row 7
The stainless steel plate and power transmission stiffness bearer of tooth, it is ensured that the stainless steel plate on top can be constant and fix with shearing box position, then
Shear box is packed into the water tank 4 of constant temperature closing saturation, tank lid is installed, remaining step is same as above.
The one side wall of the water tank 4 is equipped with for the first through hole with the first rigid cooperation of transmission rod 41 sliding, described
The first L-shaped mandril 21, one end of the described first rigid transmission rod 41 and horizontal reverse are equipped with below the one side wall of upper shear box 2
Power seat 11 is held out against, and the end of the other end and the first mandril 21 is held out against, it is ensured that upper shear box 2 is kept in shearing test whole process
Position is motionless；Another side wall of the water tank 4 is equipped with for the second through-hole with the cooperation sliding of horizontal stiffness transmission rod 42, institute
It states and is equipped with the second L-shaped mandril 31, one end and second of the horizontal stiffness transmission rod 42 below the one side wall of down cut box 3
The end of mandril 31 is held out against, and the other end and the end of horizontal addload mechanism 6 are held out against；The tank lid 44 of the water tank 4, which is equipped with, to be used
In the third through-hole with the cooperation sliding of perpendicular rigid transmission rod 43, one end and the upper shear box 2 of the perpendicular rigid transmission rod 43
The upper shearing box cover 22 at top is held out against, and the other end and the end of the Vertical loading mechanism 5 are held out against；Described first, horizontal with it is vertical
Straight rigidity transmission rod sets flanged outward cylindrical structure in both ends, it is ensured that first, level do not have with perpendicular rigid transmission rod
It is skidded off in first, second, third through-hole, causes shearing test that can not be normally carried out, it is preferred that the outer wall of water tank 4 is equipped with close
Envelope is changed, and the inner wall of sealing ring is equipped with O-ring seals, and O-ring seals and first, the horizontal outer wall with perpendicular rigid transmission rod paste
Tightly, it is ensured that it is not in permeable phenomenon when freely elapsing.
Vertical, the horizontal addload mechanism is hydraulic cylinder, and the piston rod end of the horizontal addload mechanism 6 is equipped with to be connected therewith
The jacking block 61 connect, the end of the jacking block 61 are equipped with the groove to match with 42 end bosses shape of the horizontal stiffness transmission rod
62, the arc-shaped structure in section of the groove 62.
The upper shear box 2 is in the square structure of hollow base opening, and the down cut box 3 is in the side of hollow tip opening
Shape structure is equipped with ball row 7 of cracking between the top and the bottom of down cut box 3 of the upper shear box 2, preferably crack ball
The thickness of row 7 can be divided into 5mm, 10mm, 15mm, 20mm equal-specification, can be selected according to actual conditions between upper and lower shear box
Height crack to adapt to the needs of geosynthetics simple shear test；It is equipped in the upper and lower shear box for sample to be clamped
Pointed tooth fixed plate 8 can be very good fixed geosynthetics by the way that pointed tooth fixed plate 8 is arranged.
The ball row 7 of cracking is square structure, and the top for cracking ball row 7 is equipped with ball 71, and bottom, which is equipped with, inserts
Enter part 72；3 top of the down cut box roof parallel with 6 axial direction of the horizontal addload mechanism, which is equipped with, is used for insertion piece 72
The limit hole 32 of insertion ensures to form rolling working condition between upper and lower shear box.
The cross sectional shape of the pointed tooth fixed plate 8 is identical as the intracavity section shape of upper and lower shear box, the pointed tooth
Pointed tooth 81 is evenly distributed in the one side wall of fixed plate 8, compared to traditional instrument when carrying out geosynthetics shearing test
It needs that it is carried out gluing and saves the plenty of time, office of the sample in shear history can effectively be avoided by pointed tooth 81
It slides in portion；It is equipped with cushion block between the pointed tooth fixed plate 8 and the inner cavity top and bottom of upper and lower shear box, preferred cushion block is
The porous cushion block of stainless steel.
The course of work for carrying out shearing test with soil body interface to geosynthetics is as follows：It will be put into down cut box 3
The porous cushion block of stainless steel and pointed tooth fixed plate 8, and make top side location of the surface of pointed tooth fixed plate 8 just with down cut box 3
Flush, geosynthetics be layered in pointed tooth fixed plate 8, then by upper shear box 2 load onto and using positioning bolt by its with
Down cut box 8 is fixed, then the required soil sample tested is packed into upper shear box 2, and it is full that shear box is then packed into constant temperature closing
The water tank 4 of sum installs tank lid 44, and water tank 4 is pushed into mainframe 1, installs vertical displacement meter and horizontal displacement meter, tears open simultaneously
Except positioning bolt, Vertical loading mechanism 5 is controlled by computer and is exerted a force with horizontal addload mechanism 6, while can be adopted on computers
Collect vertical displacement and horizontal displacement and the corresponding vertical load and shear stress of soil sample.
Further include preventing sticking up device, anti-stick up is placed including preventing sticking up bar 91, preventing sticking up bolt 92, and the tank lid 44 is equipped with
Stick up the anti-of the insertion of bar 91 for anti-and stick up hole, described anti-one end for sticking up bar 91 be inserted into it is anti-stick up Kong Houyu be placed in water tank 4 on cut
The top for cutting box 2 is held out against, and the other end is equipped with section and is more than the anti-limiting section 93 for sticking up 91 section of bar；The anti-bolt 92 that sticks up wraps
It includes screw rod 94 and the mandril 95 in 94 bottom of screw rod is set, the screw thread outside the screw rod 94 is with setting in the mainframe 1
On threaded hole 96 match, the end of the mandril 95 can be held out against with the limiting section 93, water tank 4 be pushed into mainframe 1 after,
Rotation is anti-to stick up bolt 92 so that screw rod 94 thereon is moved axially downwards along threaded hole 96, until mandril 95 sticks up bar 91 with anti-
On limiting section 93 hold out against, prevent sticking up at the top of the lower end of bar 91 and upper shear box 2 holding out against at this time；Preferably, there are four to be prevented sticking up bar
91 four apex angles respectively with 2 top of upper shear box are held out against, and prevent coarse-grained soil from warpage occurring in shear history.
The displacement meter includes vertical displacement meter and horizontal displacement meter, and mainframe is fixed in one end of the vertical displacement meter
On 1, the top that the other end contacts bar 45 with vertical displacement meter contacts, and the tank lid 44 is equipped with to be contacted for vertical displacement meter
The bottom end of the contact hole that bar 45 is inserted into, the vertical displacement meter contact bar 45 is connected with the upper shearing box cover 22, to measure
Vertical displacement；The side wall of the water tank 4 be equipped with for shank of bolt be inserted into bolt hole 46, one end of the shank of bolt with it is described
3 side wall of down cut box is connected；The horizontal displacement meter is set to the shift length for measuring the shank of bolt, water outside water tank 4
Flat displacement meter can be obtained the horizontal displacement of down cut box 3 in the displacement of 4 external pelivimetry shank of bolt of water tank.
Fixed seat 47, the fixed seat 47 and the connecting seat being arranged on mainframe 1 are equipped with below the side wall of the water tank 4
12 are connected by fixing bolt, it is ensured that water tank will not be subjected to displacement during shearing test, while also there is positioning limit to make
With.
The bottom of the down cut box 3 is equipped with the axis of rolling and arranges 32, reduces frictional resistance when shearing, while can be used for pushing away
Dynamic down cut box 3 is moved forward and backward, and facilitates handling sample；Guiding steel ball is installed below 3 side wall of down cut box, prevents from producing when shearing
Raw lateral rotation.
Embodiment 1, it is long 1530mm, wide 800mm, height that the present embodiment mainframe 1, which uses plate frame structure, appearance and size,
1400mm, down cut box 3 are that outside is rectangular, and hole size is 300mm × 300mm, is highly 128mm, and upper shear box 2 is all interior
Hole is rectangular, and hole size is 300mm × 300mm, and when carrying out the shearing test of soil sample, soil sample maximum allowable grain size is 60mm,
Vertical loading mold mechanism 5 and horizontal addload mechanism 6 all use stepper motor, the maximum perpendicular stress that can apply and maximum horizontal
Thrust is 200kN, and maximum perpendicular stroke and maximum horizontal stroke are 100mm；Stepper motor load-on module can pass through computer control
Normal pressure processed applies speed and horizontal shear speed, the horizontal shear that down cut box 3 can be controlled by computer exist
0.01mm/min-10mm/min ranges are at the uniform velocity carried out；It is equipped with vertical displacement meter 3, horizontal displacement meter 8, specific displacement meter
Installation number and position are by depending on specific test requirements document.The heating temperature of the water tank 4 of constant temperature closing saturation is set as room temperature -70
℃；When being used to test sodium-based bentonite waterproof carpet GCL the shear strength with geomembrane GM compound interfaces by above-mentioned apparatus, work
Process is as follows：It will be put into the porous cushion block of stainless steel and pointed tooth fixed plate 8 in down cut box 3, and pointed tooth fixed plate 8 is just reached
To the top side location of down cut box 3, the geomembrane GM samples of 300mm × 300mm are laid in pointed tooth fixed plate 8, according to GM+
The depth information of GCL geosynthetics compound linings selects height for the ball row 7 of cracking of 10mm, then by upper shear box 2
It is assembled on down cut box 3, is put into the sodium bentonite GCL samples of 300mm × 300mm sizes, then put successively in the top surfaces GCL
Enter pointed tooth fixed plate 8 and the porous cushion block of stainless steel, then by install sample cut it is box-packed enter constant temperature closing saturation water tank 4 in,
In water tank 4 water filling and ensure soak position be higher than geosynthetics surface 5mm or more, install tank lid 44；Then pass through shifting
The water tank 4 of constant temperature closing saturation is pushed into mainframe 1 by dynamic trolley, installs horizontal displacement meter and vertical displacement meter；Pass through calculating
Machine controls the application that vertical load transfer device carries out vertical load and horizontal shear with horizontal load transfer device；It is tried by computer regulated
Required temperature is tested, the heating device in the water tank 4 of constant temperature closing saturation will start automatically, when temperature sensor measures in water tank
Temperature when reaching preset value, heating device will be automatically closed.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, are similarly included in
In the scope of patent protection of the present invention.
Claims (10)
1. a kind of multifunctional large-scale temperature control is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：Including mainframe (1), for placing
The shear box of sample, the water tank (4) for placing shear box, Vertical loading mechanism (5), horizontal addload mechanism (6) and displacement
Meter, the water tank (4) is external to be equipped with heat insulation layer, and the inner wall of the water tank (4) is equipped with heater, temperature sensor；Institute
It states shear box to be spliced and combined by upper shear box (2) and down cut box (3), side and the setting of the upper shear box (2) exist
Horizontal reacting force seat (11) on mainframe (1) is held out against, the other side of the down cut box (3) and the horizontal addload mechanism (6)
End hold out against；It is held out against at the top of Vertical loading mechanism (5) end and the upper shear box (2).
2. a kind of multifunctional large-scale temperature control according to claim 1 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
The one side wall of water tank (4) is equipped with the first through hole for coordinating sliding with the first rigid transmission rod (41), the upper shear box
(2) L-shaped the first mandril (21), one end of the described first rigid transmission rod (41) and horizontal reacting force are equipped with below one side wall
Seat (11) is held out against, and the other end and the end of the first mandril (21) are held out against；Another side wall of the water tank (4) is equipped with and is used for and water
Flat rigidity transmission rod (42) coordinates the second through-hole of sliding, and L-shaped second is equipped with below the one side wall of the down cut box (3)
Mandril (31), one end and the end of the second mandril (31) of the horizontal stiffness transmission rod (42) are held out against, and the other end adds with horizontal
The end of mounted mechanism (6) is held out against；The tank lid (44) of the water tank (4) is equipped with for coordinating with perpendicular rigid transmission rod (43)
The third through-hole of sliding, one end and the upper shearing box cover (22) at the top of upper shear box (2) of the perpendicular rigid transmission rod (43)
It holds out against, the other end and the end of the Vertical loading mechanism (5) are held out against；Described first, horizontal and perpendicular rigid transmission rod is in two
End sets flanged outward cylindrical structure.
3. a kind of multifunctional large-scale temperature control according to claim 2 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
Vertically, horizontal addload mechanism is hydraulic cylinder, and the piston rod end of the horizontal addload mechanism (6) is equipped with the jacking block being attached thereto
(61), the end of the jacking block (61) is equipped with the groove to match with horizontal stiffness transmission rod (42) the end bosses shape
(62), the arc-shaped structure in section of the groove (62).
4. being saturated staight scissors simple shear double-purpose instrument, feature according to a kind of multifunctional large-scale temperature control of claim 1-3 any one of them
It is：The upper shear box (2) is in the square structure of hollow base opening, and the down cut box (3) is in hollow tip opening
Square structure is equipped with ball row (7) of cracking between the top and the bottom of down cut box (3) of the upper shear box (2)；It is described
The pointed tooth fixed plate (8) for sample to be clamped is equipped in upper and lower shear box.
5. a kind of multifunctional large-scale temperature control according to claim 4 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
The ball that cracks row (7) is square structure, and the top of the ball row (7) of cracking is equipped with ball (71), and bottom is equipped with insertion piece
(72)；It is equipped with the axial parallel roof of the horizontal addload mechanism (6) at the top of the down cut box (3) and is used for insertion piece
(72) limit hole (32) being inserted into.
6. a kind of multifunctional large-scale temperature control according to claim 5 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
The cross sectional shape of pointed tooth fixed plate (8) is identical as the intracavity section shape of upper and lower shear box, the pointed tooth fixed plate (8)
One side wall on be evenly distributed with pointed tooth (81)；The inner cavity top of the pointed tooth fixed plate (8) and upper and lower shear box and bottom it
Between be equipped with cushion block.
7. a kind of multifunctional large-scale temperature control according to claim 6 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：Also wrap
It includes and prevents sticking up device, anti-stick up is placed including preventing sticking up bar (91), preventing sticking up bolt (92), and the tank lid (44) is equipped with for preventing
Stick up the anti-of bar (91) insertion and stick up hole, described anti-one end for sticking up bar (91) be inserted into it is anti-stick up Kong Houyu be placed in water tank (4) on cut
It cuts and is held out against at the top of box (2), the other end is equipped with section and is more than the anti-limiting section (93) for sticking up bar (91) section；It is described to prevent sticking up spiral shell
Bolt (92) includes the mandril (95) of screw rod (94) and setting in screw rod (94) bottom, the external screw thread of the screw rod (94) with set
The threaded hole (96) set on the mainframe (1) matches, and the end of the mandril (95) can be pushed up with the limiting section (93)
Tightly.
8. a kind of multifunctional large-scale temperature control according to claim 2 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
Displacement meter includes vertical displacement meter and horizontal displacement meter, and one end of the vertical displacement meter is fixed on mainframe 1, the other end with
Vertical displacement meter contacts the top contact of bar (45), and the tank lid (44) is equipped with inserts for vertical displacement meter contact bar (45)
The bottom end of the contact hole entered, the vertical displacement meter contact bar (45) is connected with the upper shearing box cover (22)；The water tank (4)
Side wall be equipped with the bolt hole (46) being inserted into for shank of bolt, one end of the shank of bolt and down cut box (3) side wall
It is connected；The horizontal displacement meter is set to the shift length that water tank (4) is used to measure the shank of bolt outside.
9. a kind of multifunctional large-scale temperature control according to claim 1 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：It is described
Fixed seat (47), the fixed seat (47) and the connecting seat (12) being arranged on mainframe (1) are equipped with below the side wall of water tank (4)
It is connected by fixing bolt.
10. a kind of multifunctional large-scale temperature control according to claim 9 is saturated staight scissors simple shear double-purpose instrument, it is characterised in that：Institute
The bottom for stating down cut box (3) is equipped with axis of rolling row (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414772.8A CN108801806A (en) | 2018-05-03 | 2018-05-03 | A kind of multifunctional large-scale temperature control saturation staight scissors simple shear double-purpose instrument |
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| CN113237779A (en) * | 2021-04-26 | 2021-08-10 | 上海大学 | Direct shear test device for testing interface performance of geosynthetic material under THMC coupling effect |
| CN113624591A (en) * | 2021-09-06 | 2021-11-09 | 贵州省水利水电勘测设计研究院有限公司 | Direct shear tester |
| CN115078128A (en) * | 2022-06-29 | 2022-09-20 | 江河工程检验检测有限公司 | Test equipment and test method for simulating rock shear failure in real underwater environment |
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