CN105115832B - A kind of geotechnique for considering seepage effect tiltedly cuts strength test device - Google Patents
A kind of geotechnique for considering seepage effect tiltedly cuts strength test device Download PDFInfo
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- CN105115832B CN105115832B CN201510361822.7A CN201510361822A CN105115832B CN 105115832 B CN105115832 B CN 105115832B CN 201510361822 A CN201510361822 A CN 201510361822A CN 105115832 B CN105115832 B CN 105115832B
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Abstract
A kind of geotechnique for considering seepage effect tiltedly cuts strength test device, it is characterized in that the device includes reaction frame (1), loading frame (2), first servomotor (3), second servomotor (4), load sample platform (5), upper shear box (6), down cut box (7), railcar (8), first vertical slide rail (10), upper box sample (11), ball axle arranges (12), lower box sample (14), horizontal slide rail (17), horizontal addload axle (22), Vertical loading axle (25), second vertical slide rail (30) etc..The device fabrication is simple, measurement accuracy is high, meet the consolidation under the conditions of different vertical stress loading and hydraulic gradient and oblique scissor test requirement, strain controlling formula or the loading of Stress Control formula can be carried out, includes coarse-grained soil, gravelly soil, soil-rock mixture and the soil body direct shear strength index selection under seepage effect available for the various Rock And Soils run into civil engineering or Geological Engineering.
Description
Technical field
The present invention is a kind of geotechnical testament instrument, belongs to civil engineering instrument test field.
Background technology
Coarse-grained soil (gravelly soil, soil-rock mixture) is a kind of gravel by as aggregate or block stone and gluing as casting resin
The geologic body of soil and sand composition.Coarse-grained soil is widely used in earth and rockfill dam, highway, railway, airport, house as a kind of filler
The architectural engineerings such as base, application are quite extensive.Due to coarse-grained soil by block stone and local soil type into and both are presented in mechanical property
" extremely strong " (block stone) and " extremely weak " (soil body) two extreme othernesses.This otherness makes coarse-grained soil on physico-mechanical properties
Extreme inhomogeneities and extreme nonlinear characteristic is presented, its Macroscopic physical mechanical property can not be by block stone or native simple superposition
Form.Rain shadow of accepting a surrender rings, and risk of landslip may occur for coarse-grained soil slope, therefore consider the shadow of rainfall infiltration Upon Slope Stability
Sound is most important, the test of the coarse-grained soil intensity being presently considered under seepage effect can not by traditional soil mechanics shear or
Rock test rig is completed, it is necessary to develop the new instrument of suitable coarse-grained soil own characteristic, to measure its mechanical strength, especially
Consider the influence of seepage flow and dimensional effect to coarse-grained soil intensity.The present invention is exactly that a kind of measure considers that the geotechnique of seepage effect tiltedly cuts
The novel test device of intensity.
The content of the invention
It is an object of the present invention to provide a kind of geotechnique for considering seepage effect tiltedly to cut strength test device, for solving coarse-grained soil
Strength test test under different consolidation stress states and seepage effect, technical parameter is provided for engineering practice.
The technical solution of the present invention, it is characterized in that a kind of geotechnique for considering seepage effect tiltedly cuts strength test device,
Including reaction frame 1, loading frame 2, the first servomotor 3, the second servomotor 4, load sample platform 5, upper shear box 6, down cut box
7, railcar 8, vertical displacement meter 9, the first vertical slide rail 10, upper box sample 11, ball axle row 12, lower box expansion board 13, lower box
Sample 14, the first jack 15, the first support base 16, horizontal slide rail 17, the second support base 18, the second jack 19, pass
Power bar 20, connection end 21, horizontal addload axle 22, horizontal displacement meter 23, the first lateral spacing post 24, Vertical loading axle 25, increased pressure board
26, the second lateral spacing post 27, telescopic arm 28, the 3rd lateral spacing post 29, the second vertical slide rail 30, osculum 31, inlet opening 32, porous disc
33.First servomotor 3 connection Vertical loading axle 25, Vertical loading axle 25 provides pressure at right angle, above increased pressure board 26, adds
Pressing plate 26 connects vertical displacement meter 9, has osculum 31 inside increased pressure board 26, and increased pressure board 26 is located at the top surface of upper box sample 11, on
Shear box 6 is fixed by the first lateral spacing post 24 and the second lateral spacing post 27, and the first lateral spacing post 24 connects the first vertical slide rail 10, the second side
Limit post 27 is connected by telescopic arm 28 with the 3rd lateral spacing post 29, and the 3rd lateral spacing post 29 connects the second vertical slide rail 30, upper shear box 6
By the alignment down cut box 7 of ball axle row 12, box sample 11 is installed in upper shear box 6, lower box sample is installed in down cut box 7
14, porous disc 33, the bottom of porous disc 33 connection inlet opening 32, the lower box extension of the connection of down cut box 7 are installed in the lower bottom of box sample 14
Plate 13, down cut box 7 connect railcar 8, and railcar 8 can be moved on load sample platform 5 along horizontal slide rail 17, horizontal slide rail 17 with
Loading frame 2 connects, and the first jack 15 connects the first support base 16, and the second jack 19 connects the second support base 18,
Down cut box 7 connects transmission rod 20 and horizontal displacement meter 23, connection end 21 are aligned with horizontal addload axle 22, horizontal addload axle 22
Connect the second servomotor 4.The upper size of shear box 6 is the wide 500mm of long 500mm, the upper shearing of connection the first lateral spacing post 24 side
The a height of 445mm of box wall of box 6, a height of 155mm of box wall of the upper shear box 6 of connection the second lateral spacing post 27 side, the chi of down cut box 7
Very little is the wide 500mm of long 500mm, connects a height of 155mm of box wall of the down cut box 7 of the lower side of box expansion board 13, connects transmission rod
The a height of 445mm of box wall of the down cut box 7 of 20 sides, it is 30 ° that ball axle, which arranges 12 inclination angles, and upper shear box 6 and down cut box 7 are adopted
With the high alloy material of light weight intensity, and carry out anodization preservative treatment, the inwall four of upper shear box 6 and down cut box 7
Individual angle is circular design, and radius of corner is 30mm~60mm, and upper shear box 6 can slide along lower box expansion board 13, the first lateral spacing
Post 24 can along the vertical sliding motion of the first vertical slide rail 10, the 3rd lateral spacing post 29 can along the vertical sliding motion of the second vertical slide rail 30,
One servomotor 3 and the second servomotor 4 are equal by the applying power of reaction frame 1, reaction frame 1 and loading frame 2 and increased pressure board 26
Using high-strength stainless steel material, rubber bag tank encapsulation process is used between increased pressure board 26 and upper shear box 6, upper shear box 6 is cut with
Cut box 7 and use rubber bag tank encapsulation process, ball axle row 12, lower box expansion board 13 and horizontal slide rail 17 are high-strength stainless steel
Material, and surface scribbles teflon.First servomotor 3 and the second servomotor 4 can carry out fast forwarding and fast rewinding operation,
Strain loading and stress loading can also be carried out, strain shear rate is 0.02~5.00mm/min, and EIAJ is reachable
1000kN, for output measurement accuracy up to 0.5%FS, stress shear rate is 100~600kN/min.The maximum of vertical displacement meter 9
Range is 150mm, and measurement accuracy is up to 1mm, and the maximum range of horizontal displacement meter 23 is 170mm, and measurement accuracy is up to 1mm.
The test method for measuring shearing strength of the coarse-grained soil under seepage effect is as follows：
(1) according to certain water content, rock-soil ratio and density requirements, the soil body, rubble and water of respective quality are weighed, by soil
Body, rubble, water three are well mixed, and turn into compound, be divided into uniform three parts it is standby；
(2) railcar 8 is moved on load sample platform 5, by upper shear box 6 via the alignment down cut boxes 7 of ball axle row 12, by the
A compound is fitted into down cut box 7, and increased pressure board 26 is placed on compound, and railcar 8 is being moved into Vertical loading axle 25 just
Lower section, start the first jack 15 and the second jack 19, by the first support base 16 and the second support base 18 respectively with adding
Carry framework 2 to contact, make railcar 8 hanging, start the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, press
It is required that applying pressure at right angle F, the corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, stop loading；
(3) the first servomotor 3 is started, unloading makes Vertical loading axle 25 leave the top cap of increased pressure board 26, and it is very heavy to start first
The jack 19 of top 15 and second, the first support base 16 and the second support base 18 are departed from loading frame 2 respectively, make track
Car 8 is contacted with horizontal slide rail 17, and railcar 8 is moved on load sample platform 5, takes out increased pressure board 26, by compound plucking, loads second
Part compound, increased pressure board 26 is placed on compound, and railcar 8 is moved to immediately below Vertical loading axle 25, and it is very heavy to start first
The jack 19 of top 15 and second, the first support base 16 and the second support base 18 are contacted with loading frame 2 respectively, make track
Car 8 is hanging, starts the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, applies pressure at right angle F on request,
The corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, stops loading；
(4) the first servomotor 3 is started, unloading makes Vertical loading axle 25 leave the top cap of increased pressure board 26, and it is very heavy to start first
The jack 19 of top 15 and second, the first support base 16 and the second support base 18 are departed from loading frame 2 respectively, make track
Car 8 is contacted with horizontal slide rail 17, and railcar 8 is moved on load sample platform 5, takes out increased pressure board 26, by compound plucking, loads the 3rd
Part compound, increased pressure board 26 is placed on compound, and railcar 8 is moved to immediately below Vertical loading axle 25, and it is very heavy to start first
The jack 19 of top 15 and second, the first support base 16 and the second support base 18 are contacted with loading frame 2 respectively, make track
Car 8 is hanging, starts the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, applies pressure at right angle F on request,
The corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, keeps pressure at right angle F constant；
(5) the first lateral spacing post 24 and the second lateral spacing post 27 are connected with upper shear box 6 respectively, the second lateral spacing post 27 is passed through
Telescopic arm 28 is connected with the 3rd lateral spacing post 29, fixes shear box 6, start the second servomotor 4, make horizontal addload axle 22 with
Connection end 21 is connected, and applies hydraulic gradient by inlet opening 32, treats that osculum 31 forms stationary flow, and waiting on request strains
Speed applies pulling force T by transmission rod 20, down cut box 7 is moved to the direction of the second servomotor 4, while use horizontal displacement
Meter 23 measures horizontal displacement S, and the horizontal direction of shear box 6 is fixed in holding, and upper shear box 6 passes through the first vertical slide rail 10 and second
The slide downward of vertical slide rail 30, make the output pressure of Vertical loading axle 25 according to F '=F-Ttg30 ° of change, and use vertical displacement
The vertical displacement S ' of the measurement increased pressure board 26 of meter 9, ball axle row 12 slides along lower box expansion board 13, to avoid inside upper shear box 6
Upper box sample 11 spill；
(6) experiment is stopped when horizontal displacement S increases to 75mm, in acquisitions at box sample 11 and the lower contact surface of box sample 14
+ Tsin30 ° of normal pressure f=F ' cos30 °, take f maximum fmax1, obtain shearing force T '=Tcos30 ° of-F ' at contact surface
Sin30 °, take T ' maximum of T 'max1；
(7) inlet opening 32 is closed, unloads the first servomotor 3 by Vertical loading axle 25, the second servomotor 4 passes through
Horizontal addload axle 22 applies thrust and promotes down cut box 7 to move so that upper shear box 6 overlaps with down cut box 7, is sheared on removal
The connection of the lateral spacing post 24 of box 6 and first and the second lateral spacing post 27, start the first jack 15 and the second jack 19, by first
The support support base 18 of base 16 and second departs from loading frame 2 respectively, railcar 8 is contacted with horizontal slide rail 17, by track
Car 8 is moved on load sample platform 5 by horizontal slide rail 17, removal whole compound；
(8) change pressure at right angle F value, repeat step (2)-(7), obtain fmax2With T 'max2；
(9) change pressure at right angle F value again, repeat step (2)-(7), obtain fmax3With T 'max3；
(10) by fmax1With T 'max1、fmax2With T 'max2、fmax3With T 'max3Pass through connecing for upper box sample 11 and lower box sample 14
Contacting surface product is converted into stress, draws mole coulomb line, obtains Shear Strength Index of the coarse-grained soil compound under seepage effect.
Advantage of the present invention：
Instrument manufacturing is simple, and measurement accuracy is high, meets consolidating under the conditions of different vertical stress loading and different hydraulic gradients
Knot with oblique scissor test requirement, can carry out strain controlling formula or Stress Control formula loading, can measure large scale coarse-grained soil (including
Gravelly soil, soil-rock mixture and the soil body) direct shear strength index under seepage effect.
The scope of application of the present invention：
It is solid in a variety of Rock And Soil rooms such as the various accumulation bodies, coarse-grained soil, soil-rock mixture that are run into civil engineering
Junction characteristic, seepage characteristic, strength characteristics experiment.
Brief description of the drawings：
Fig. 1 is that a kind of geotechnique for considering seepage effect tiltedly cuts strength test device structural representation.Wherein have：Reaction frame 1,
Loading frame 2, the first servomotor 3, the second servomotor 4, upper shear box 6, down cut box 7, railcar 8, vertical displacement meter
9, the first vertical slide rail 10, upper box sample 11, ball axle row 12, lower box expansion board 13, lower box sample 14, the first jack 15,
First support base 16, horizontal slide rail 17, the second support base 18, the second jack 19, transmission rod 20, connection end 21, water
Flat loading axis 22, horizontal displacement meter 23, the first lateral spacing post 24, Vertical loading axle 25, increased pressure board 26, the second lateral spacing post 27, stretch
Arm 28, the 3rd lateral spacing post 29, the second vertical slide rail 30, osculum 31, inlet opening 32, porous disc 33.
Fig. 2 is that a kind of geotechnique for considering seepage effect tiltedly cuts the AA left views of the structural representation of strength test device.Its
In have：First servomotor 3, load sample platform 5, upper shear box 6, down cut box 7, railcar 8, upper box sample 11, lower box sample 14,
Increased pressure board 26, inlet opening 32, porous disc 33.
Fig. 3 is that a kind of geotechnique for considering seepage effect tiltedly cuts the upper shear box 6 in strength test device structural representation
Top view.Wherein there is upper shear box 6.
Fig. 4 is that a kind of geotechnique for considering seepage effect tiltedly cuts the down cut box 7 in strength test device structural representation
Top view.Wherein there are down cut box 7, lower box expansion board 13.
Embodiment：
Embodiment：Coarse-grained soil shearing strength method for measurement is as follows,
1. according to water content 15%, rock-soil ratio 20% and density 1.9g/cm3It is required that weigh the soil body of respective quality, rubble
And water, the soil body, rubble, water three are well mixed, turn into compound, be divided into uniform three parts it is standby；
2. railcar 8 is moved on load sample platform 5, by upper shear box 6 via the alignment down cut boxes 7 of ball axle row 12, by the
A compound is fitted into down cut box 7, and increased pressure board 26 is placed on compound, and railcar 8 is being moved into Vertical loading axle 25 just
Lower section, start the first jack 15 and the second jack 19, by the first support base 16 and the second support base 18 respectively with adding
Carry framework 2 to contact, make railcar 8 hanging, start the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, press
It is required that applying pressure at right angle F=200kN, the corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, stop adding
Carry；
3. starting the first servomotor 3, unloading makes Vertical loading axle 25 leave the top cap of increased pressure board 26, starts the first jack
15 and second jack 19, the first support base 16 and the second support base 18 are departed from loading frame 2 respectively, make railcar
8 are contacted with horizontal slide rail 17, and railcar 8 is moved on load sample platform 5, take out increased pressure board 26, by compound plucking, load second part
Compound, increased pressure board 26 is placed on compound, railcar 8 is moved to immediately below Vertical loading axle 25, start the first jack
15 and second jack 19, the first support base 16 and the second support base 18 are contacted with loading frame 2 respectively, make railcar
8 is hanging, starts the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, applies pressure at right angle F=on request
200kN, the corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, stops loading；
4. starting the first servomotor 3, unloading makes Vertical loading axle 25 leave the top cap of increased pressure board 26, starts the first jack
15 and second jack 19, the first support base 16 and the second support base 18 are departed from loading frame 2 respectively, make railcar
8 are contacted with horizontal slide rail 17, and railcar 8 is moved on load sample platform 5, take out increased pressure board 26, by compound plucking, load the 3rd part
Compound, increased pressure board 26 is placed on compound, railcar 8 is moved to immediately below Vertical loading axle 25, start the first jack
15 and second jack 19, the first support base 16 and the second support base 18 are contacted with loading frame 2 respectively, make railcar
8 is hanging, starts the first servomotor 3, Vertical loading axle 25 is contacted the top cap of increased pressure board 26, applies pressure at right angle F=on request
200kN, the corresponding shift value when display of vertical displacement meter 9 reaches the density of requirement, keeps pressure at right angle F=200kN constant；
5. the first lateral spacing post 24 and the second lateral spacing post 27 are connected with upper shear box 6 respectively, the second lateral spacing post 27 is passed through
Telescopic arm 28 is connected with the 3rd lateral spacing post 29, fixes shear box 6, start the second servomotor 4, make horizontal addload axle 22 with
Connection end 21 is connected, and applies the high hydraulic gradients of 5m by inlet opening 32, treats that the water yield of osculum 31 changes over time every point of rate
Clock is less than 5ml, and equi-strain rate 1mm/min on request applies pulling force T by transmission rod 20, down cut box 7 is watched to second
The movement of the direction of motor 4 is taken, while horizontal displacement S is measured using horizontal displacement meter 23, the horizontal direction of shear box 6 is fixed in holding,
Upper shear box 6 by the first vertical slide rail 10 and the slide downward of the second vertical slide rail 30, make the output pressure of Vertical loading axle 25 by
According to F '=F-Ttg30 ° of change, and using the vertical displacement S ' of the measurement increased pressure board 26 of vertical displacement meter 9, ball axle arranges 12 along lower box
Expansion board 13 is slided, to avoid the upper box sample 11 inside upper shear box 6 from spilling；
6. stop experiment when horizontal displacement S increases to 75mm, in acquisitions at box sample 11 and the lower contact surface of box sample 14
+ Tsin30 ° of normal pressure f=F ' cos30 °, take f maximum fmax1, obtain shearing force T '=Tcos30 ° of-F ' at contact surface
Sin30 °, take T ' maximum of T 'max1；
7. closing inlet opening 32, unload the first servomotor 3 by Vertical loading axle 25, the second servomotor 4 passes through
Horizontal addload axle 22 applies thrust and promotes down cut box 7 to move so that upper shear box 6 overlaps with down cut box 7, is sheared on removal
The connection of the lateral spacing post 24 of box 6 and first and the second lateral spacing post 27, start the first jack 15 and the second jack 19, by first
The support support base 18 of base 16 and second departs from loading frame 2 respectively, railcar 8 is contacted with horizontal slide rail 17, by track
Car 8 is moved on load sample platform 5 by horizontal slide rail 17, removal whole compound；
8. change pressure at right angle F=300kN, repeat step 2. -7., obtain fmax2With T 'max2；
9. again change pressure at right angle F=400kN, repeat step 2. -7., obtain fmax3With T 'max3；
10. by fmax1With T 'max1、fmax2With T 'max2、fmax3With T 'max3Pass through the contact with lower box sample 14 of upper box sample 11
Area is converted into stress, draws mole coulomb line, obtains shearing strength of the coarse-grained soil compound under the high waterpower seepage effects of 5m
Index.
Claims (1)
1. a kind of geotechnique for considering seepage effect tiltedly cuts strength test device, it is characterized in that the device includes reaction frame (1), loading
Framework (2), the first servomotor (3), the second servomotor (4), load sample platform (5), upper shear box (6), down cut box (7), rail
Road car (8), vertical displacement meter (9), the first vertical slide rail (10), upper box sample (11), ball axle row (12), lower box expansion board
(13), lower box sample (14), the first jack (15), the first support base (16), horizontal slide rail (17), the second support base
(18), the second jack (19), transmission rod (20), connection end (21), horizontal addload axle (22), horizontal displacement meter (23), the
One lateral spacing post (24), Vertical loading axle (25), increased pressure board (26), the second lateral spacing post (27), telescopic arm (28), the 3rd lateral spacing post
(29), the second vertical slide rail (30), osculum (31), inlet opening (32), porous disc (33)；First servomotor (3) connection is hung down
Straight loading axis (25), Vertical loading axle (25) provide pressure at right angle, and, increased pressure board (26) connection is vertical positioned at increased pressure board (26) above
Displacement meter (9), increased pressure board (26) is internal osculum (31), and increased pressure board (26) is located at the top surface of upper box sample (11), upper shearing
Box (6) is fixed by the first lateral spacing post (24) and the second lateral spacing post (27), and the first lateral spacing post (24) connects the first vertical slide rail (10),
Second lateral spacing post (27) is connected by telescopic arm (28) with the 3rd lateral spacing post (29), and the 3rd lateral spacing post (29) connection second is vertically sliding
Rail (30), upper shear box (6) are directed at down cut box (7) by ball axle row (12), box sample are installed in upper shear box (6)
(11), the lower box sample (14) of installation, lower box sample (14) bottom installation porous disc (33), porous disc (33) in down cut box (7)
Bottom connects inlet opening (32), the lower box expansion board (13) of down cut box (7) connection, down cut box (7) connection railcar (8), rail
Road car (8) can be moved on load sample platform (5) along horizontal slide rail (17), and horizontal slide rail (17) is connected with loading frame (2), and first
Jack (15) connects the first support base (16), and the second jack (19) connects the second support base (18), down cut box (7)
Connection transmission rod (20) and horizontal displacement meter (23), connection end (21) are aligned with horizontal addload axle (22), horizontal addload axle
(22) the second servomotor (4) is connected；Upper shear box (6) size is the wide 500mm of long 500mm, connects the first lateral spacing post (24) one
The a height of 445mm of box wall of the upper shear box (6) of side, the box wall for connecting the upper shear box (6) of second lateral spacing post (27) side are a height of
155mm, down cut box (7) size are the wide 500mm of long 500mm, connect the box of the down cut box (7) of lower box expansion board (13) side
The a height of 155mm of wall, connects a height of 445mm of box wall of the down cut box (7) of transmission rod (20) side, and ball axle row (12) inclination angle is
30 °, upper shear box (6) and down cut box (7) are using the high alloy material of light weight intensity, and carry out at anodization anti-corrosion
Reason, four angles of inwall of upper shear box (6) and down cut box (7) are circular design, and radius of corner is 30mm~60mm, upper shearing
Box (6) slides along lower box expansion board (13), and the first lateral spacing post (24) is along the first vertical slide rail (10) vertical sliding motion, the 3rd lateral spacing post
(29) reaction frame (1) is passed through along the second vertical slide rail (30) vertical sliding motion, the first servomotor (3) and the second servomotor (4)
Applying power, reaction frame (1) and loading frame (2) and increased pressure board (26) use high-strength stainless steel material, increased pressure board (26)
Rubber bag tank encapsulation process is used between upper shear box (6), upper shear box (6) uses rubber bag tank encapsulation process with down cut box (7),
Ball axle row (12), lower box expansion board (13) and horizontal slide rail (17) are high-strength stainless steel material, and surface scribbles spy
Rich imperial material；First servomotor (3) and the second servomotor (4) can carry out fast forwarding and fast rewinding operation, can also carry out even
Fast strain loading and stress loading, strain shear rate are 0.02~5.00mm/min, and EIAJ is contributed and surveyed up to 1000kN
For accuracy of measurement up to 0.5%FS, stress shear rate is 100~600kN/min；The maximum range of vertical displacement meter (9) is
150mm, measurement accuracy is up to 1mm, and the maximum range of horizontal displacement meter (23) is 170mm, and measurement accuracy is up to 1mm.
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| CN201510361822.7A CN105115832B (en) | 2015-06-26 | 2015-06-26 | A kind of geotechnique for considering seepage effect tiltedly cuts strength test device |
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| CN201510361822.7A CN105115832B (en) | 2015-06-26 | 2015-06-26 | A kind of geotechnique for considering seepage effect tiltedly cuts strength test device |
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| CN104007025A (en) * | 2014-05-08 | 2014-08-27 | 河海大学 | Multifunctional tilt table device used for testing interfacial shear strength characteristics of geotechnical synthetic material |
| CN104198307B (en) * | 2014-09-03 | 2016-08-17 | 安徽理工大学 | A kind of unidirectional pressure cuts one dynamic stress and strain test device |
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2015
- 2015-06-26 CN CN201510361822.7A patent/CN105115832B/en active Active
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| CN108444813A (en) * | 2018-04-03 | 2018-08-24 | 河北工业大学 | Multiple dimensioned soil-rock mixture-interface of basement rock shear property test device and method |
| CN108444813B (en) * | 2018-04-03 | 2020-11-03 | 河北工业大学 | Multi-scale soil-rock mixture-bedrock interface shear characteristic testing device and method |
| CN110095353A (en) * | 2019-05-13 | 2019-08-06 | 中国石油大学(北京) | Rock shearing anatonosis property detecting device in situ |
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| CN105115832A (en) | 2015-12-02 |
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