CN207066817U - Triaxial test disturbed soil sample preparation device - Google Patents
Triaxial test disturbed soil sample preparation device Download PDFInfo
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- CN207066817U CN207066817U CN201720333807.6U CN201720333807U CN207066817U CN 207066817 U CN207066817 U CN 207066817U CN 201720333807 U CN201720333807 U CN 201720333807U CN 207066817 U CN207066817 U CN 207066817U
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Abstract
The utility model category Geotechnical Engineering shop test equipment technical field, more particularly to a kind of triaxial test disturbed soil sample preparation device.The device includes sample preparation cylinder and hits real equipment, sample preparation cylinder includes base and upper and lower casing, upper casing can be stretched along lower casing to adjust the total height of upper and lower casing, upper and lower casing outer wall is provided with uniform graduation mark, sample preparation cylinder material is transparent toughened glass, rubber pattern is close to cylinder inboard wall after passing through casing and both ends are counter is placed on casing and base outer wall, and casing wall respectively sets steam vent to realize that inwall vacuumizes with rubber intermode space.It is stainless steel material to hit real equipment, including transmission rod, compaction hammer and plane rough cutter piece, the bottom solid hopkinson bar of transmission rod can stretch in upper hollow shaft, and by limiter adjustment transmission rod total length.Soil sample ratio of height to diameter can be adjusted flexibly during the utility model sample preparation, and the visualization of sample preparation overall process, soil sample is paved and hit can be precisely controlled in fact and test operation process is simple, can be promoted the use of in soil test technique field.
Description
Technical field
The utility model category Geotechnical Engineering shop test equipment technical field, more particularly to a kind of triaxial test disturbed soil
Sample preparation device.
Background technology
Indoor ordinary triaxial test is widely used in the research of soil body mechanical characteristic, including measure soil shear strength ginseng
Number (cohesion and internal friction angle), obtain resistance to shear of soil-strain curve and its dilatancy etc.., should for disturbed soil
The key of test operation is the preparation of soil sample, if obtained soil sample is uneven, preparation process is difficult to accurate control, soil sample ratio of height to diameter
It is too small or be difficult to according to research needs be adjusted flexibly, can make result of the test differed with the real stress-strain behavior of the soil body compared with
The value of this experiment can not be realized greatly.Existing earthwork test rule regulation soil sample ratio of height to diameter is generally 2.0-2.5, and diameter includes
Tri- kinds of specifications of 39.1mm, 61.8mm and 101.0mm, specific method for making sample be using steel split cavity cylinder or three petal cylinders, according to
Test determination compactness calculate needed for quality of soil sample, several parts for then getting soil sample ready and the quality such as being divided into, insert successively in mould cylinder
Reality is hit, until all soil samples insert mould cylinder, clayey soil divides 5-8 layers to hit reality, and the non-clayey soil body divides 3-5 layers to hit reality.
But there are the following problems for above-mentioned sample preparation device and operating method：
(1) the split cavity cylinder of steel or three petal cylinders are because material reason is opaque, and the soil body is inserted when prepared by sample
Hit that real process is invisible, every part of soil body insert after spreading evenness, the height hit after reality of the layer soil body all can not control accurately
System and can only by virtue of experience estimate, deviation be present by this in the compactness for causing each layer after native sample compacting, obtained soil sample be it is non-
Matter, there is larger error in obtained result of the test；
(2) the split or three petal cylinder height of steel are changeless, once certain diameter specifications is have selected, it is obtained
Soil sample is by fixing and make ratio of height to diameter not adjust voluntarily due to mould cylinder height.This will can not meet same diameter different height
The scientific research of each soil sample mechanical characteristic otherness comparative analysis needs, and for the larger soil sample of average grain diameter, its is general
It is required that ratio of height to diameter is larger to eliminate the influence of end restraint, but steel mould cylinder does not consider soil body particle diameter to sample preparation ratio of height to diameter
It is required that.
Therefore, how designing a kind of sample preparation overall process (including the paving of every layer of soil sample, hit height etc. after reality) can accurately control
System, soil sample ratio of height to diameter can need the triaxial test disturbed soil sample preparation device being adjusted flexibly according to experiment, and it is a kind of to attach design
Shakeout, hit it is real it is dual-purpose hit real equipment, to improve the real reliability of result of the test, meet scientific research and the actual needs of engineering
It is a direction for being worth research.
Utility model content
The purpose of this utility model is to provide a kind of triaxial test disturbed soil sample preparation device solve existing sample preparation device
Soil sample ratio of height to diameter can not be adjusted flexibly according to research needs during sample preparation, the preparation of soil sample is uneven, compactness controls inaccurate ask
Topic.
Used technical scheme is the utility model to achieve the above object：Triaxial test disturbed soil sample preparation device,
It is characterized in that：Including sample preparation cylinder and it is arranged in sample preparation cylinder and hits real equipment；
The sample preparation cylinder includes base, lower casing, upper casing and rubber pattern, and lower casing is placed on base, lower casing
Top connects and composes casing main body with upper casing, and upper casing can be flexible to adjust the total height of casing main body up and down along lower casing,
The outer wall of casing main body is equipped with uniform graduation mark, and zero graduation line is located at the lower end of lower casing, and rubber pattern passes through casing main body
It is close to the anti-outer wall for being placed on casing main body and base of cylinder inboard wall and both ends afterwards, the outer wall of upper casing and lower casing respectively sets a row
Stomata is vacuumized with the space realized between inwall and rubber pattern；
Described to hit real equipment including transmission rod, compaction hammer and dig rough cutter piece, the lower end of transmission rod is connected with compaction hammer, lower end
Connection plane rough cutter piece, transmission rod include upper hollow shaft, bottom solid hopkinson bar and limiter, and bottom solid hopkinson bar is socketed by limiter
And can be flexible up and down in upper hollow shaft in upper hollow shaft, and by the total length of limiter adjustment transmission rod.
The base includes pedestal, backing plate and permeable stone, and the upper surface center of pedestal opens up the circular port completely penetrated through
Hole, hole inwall set screw thread, and hole diameter is slightly larger than the external diameter of lower casing, and backing plate is placed in hole, and the top of backing plate is placed thoroughly
Water stone, after permeable stone is placed in backing plate upper surface, the upper surface of permeable stone and the top surface of pedestal, lower casing outer wall zero graduation line at
In same level.
The pedestal is prismatic shape, is highly 2-4cm.
The backing plate is the solid backing plate of cylindrical shape, and its cross-sectional diameter is identical with permeable stone and is slightly less than pedestal
Hole diameter.
The vaseline for anti-leak-stopping soil is filled in space between the hole and backing plate of the pedestal.
The upper casing and lower casing are thin hollow transparent safety glass pipe, and outer wall front and the back side are provided with uniform carve
Line is spent, and the unit length of graduation mark is 1mm；Upper casing is close to vertical midpoint position on the upper side, lower casing close to vertical midpoint
Leave aperture 1.5-2mm steam vent in position on the lower side.
The ratio of height to diameter of the lower casing is 2-2.5, and its bottom outer surface is provided with the screw thread being easy to be connected in base-plate holes,
And screw thread is located at below zero graduation line, vertically midpoint up sets screw thread and is connected with upper casing 3 its inwall, barrel thickness 1-
1.5mm。
The height of the upper casing is identical with lower casing, its outer wall vertically midpoint toward having in lower casing
Flexible screw thread, its external diameter are slightly less than the internal diameter of lower casing, barrel thickness 0.5-1mm up and down.
Described to hit real equipment and be made up of stainless steel material, the upper end of upper hollow shaft, which is provided with, to be used to be connected with plane rough cutter piece
Screw thread, the lower end position on the upper side of upper hollow shaft opens up two diameter 0.5-1mm hole, and hole is along upper hollow shaft or so
Symmetrically, and hole inwall reserves screw thread, and bottom solid hopkinson bar is fixedly connected by limiter insertion hole with upper hollow shaft, and bottom is real
The lower end of core bar is provided with the screw thread for being used for being connected with the compaction hammer upper surface center position of thick round pie.
The external diameter of the upper hollow shaft is 2-2.5mm, wall thickness 0.3-0.5mm, and the diameter of bottom solid hopkinson bar is slightly less than
The internal diameter of portion's hollow stem.
Compared with prior art, the beneficial effects of the utility model are：The utility model uses can upper and lower flexible casing
Sample preparation, casing outer wall set uniform graduation mark, and sample preparation cylinder is made up of transparent toughened glass, and devise one kind shakeout, hit it is real dual-purpose,
The adjustable actual load of hitting of rod length is put, and each soil sample ratio of height to diameter is adjusted flexibly according to experiment demand when realizing sample preparation, and sample preparation is complete
Process visualization, soil sample pave and hit the real purpose that can be precisely controlled.It can be met using soil sample made from the utility model
Cell cube ordinary triaxial test under indoor different ratio of height to diameters, the influence of end rigid constraint when eliminating sample loading, and make
Into soil sample more uniformly, compactness control it is more accurate, so as to obtain more true and reliable result of the test.
Brief description of the drawings
Fig. 1 is main view profile of the present utility model.
Fig. 2 is sample preparation barrel structure front view of the present utility model.
Fig. 3 is Fig. 2 A-A ' places profile.
Fig. 4 is Fig. 2 B-B ' places profile.
Fig. 5 is base construction schematic diagram of the present utility model.
Fig. 6 is pedestal of the present utility model and backing structure top view.
Fig. 7 is backing plate of the present utility model and permeable stone structural representation.
Fig. 8 hits real equipment front view to be of the present utility model.
Fig. 9 is Fig. 8 part A enlarged diagram.
Figure 10 is compaction hammer top view.
In figure：1- bases, casing under 2-, the upper casings of 3-, 4- rubber patterns, 5- steam vents, 6- transmission rods, 7- limiters, 8-
Compaction hammer, 9- plane rough cutter pieces, 10- pedestals, 11- backing plates, 12- permeable stones, 13- graduation marks, 14- vaseline, 15- tops are hollow
Bar, 16- bottoms solid hopkinson bar.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the utility model is not limited to
Specific embodiment.
Embodiment 1
As shown in Fig. 1-Figure 10, triaxial test disturbed soil sample preparation device, including sample preparation cylinder and be arranged in sample preparation cylinder
Hit real equipment.
Sample preparation cylinder includes base 1, lower casing 2, upper casing 3, rubber pattern 4, and lower casing 2 is placed on base 1, lower casing 2
Top and upper casing 3 connect and compose casing main body, upper casing 3 can along lower casing about 2 it is flexible to adjust the total of casing main body
Highly, the front of casing main body and back side outer wall are provided with the graduation mark 13 that uniform unit length is 1mm, and zero graduation line is located at
The lower lower end of casing 3, sample preparation cylinder material are transparent toughened glass, and rubber pattern 4, which passes through, is close to cylinder inboard wall after casing and both ends are counter covers
It is on the lower side slightly towards vertical midpoint slightly towards vertical midpoint position on the upper side, lower casing 2 in casing main body and the outer wall of base 1, upper casing 3
Aperture 1.5mm steam vent 5 is left in position, and to realize, space vacuumizes between inwall and rubber pattern 4；Base 1 includes base
Seat 10 and backing plate 11, pedestal 10 are prismatic shape, are highly 2cm, and upper surface center opens up the circular opening completely penetrated through,
Hole inwall sets screw thread and diameter is slightly larger than the lower external diameter of casing 2, and the two in the present embodiment differs 0.2mm, the reality of cylindrical shape
Heart backing plate 11 is placed in the hole of pedestal 10, puts permeable stone 12 thereon, and the cross-sectional diameter of backing plate 11 is identical and smaller with permeable stone 12
The two difference 0.3mm in the hole diameter of pedestal 10, the present embodiment, after permeable stone 12 is placed in the upper surface of backing plate 11, permeable stone 12
Upper surface and the top surface of pedestal 10, the outer wall zero graduation line of lower casing 2 be in same level, the hole of pedestal 10 and backing plate 11 during placement
Between space vaseline 14 fill anti-leak-stopping soil；The ratio of height to diameter of lower casing 2 is 2, and casing bottom outer surface is threaded to connect
It is connected in the hole of pedestal 10, and screw thread is located at below zero graduation line, vertically midpoint up sets screw thread and upper shield to casing inwall
Cylinder 3 connects, barrel thickness 1mm.The upper height of casing 3 is identical with lower casing 2, and the upper external diameter of casing 3 is slightly less than the lower internal diameter of casing 2, barrel
Thick 0.5mm, vertically midpoint is arbitrarily flexible in lower casing 2 so as to realize toward screw thread is divided into for outer wall, if lower casing 2 has met
Sample preparation ratio of height to diameter demand, no longer upper casing 3 can be connected with lower casing 2 and individually use the lower sample preparation of casing 2 during sample preparation.
Hit real equipment to be made up of stainless steel material, the lower end of transmission rod 6 is connected with compaction hammer 8, lower end connection plane rough cutter piece
9, transmission rod 6 includes upper hollow shaft 15, bottom solid hopkinson bar 16 and limiter 7, and bottom solid hopkinson bar 16 is socketed on by limiter 7
It can be stretched in upper hollow shaft 15 in upper hollow shaft 15 and up and down, and the total length of transmission rod 6 is adjusted by limiter 7.Pass
The slightly biased upper position in the lower end of upper hollow shaft 15 of power bar 6 opens up two diameter 0.5mm hole, and hole is along 15 or so pairs of hollow stem
Claim, and hole inwall reserves screw thread, so as to which limiter 7 is inserted into hole to fix bottom solid hopkinson bar 16；Outside upper hollow shaft 15
Footpath is 2mm, wall thickness 0.3mm, and the diameter of bottom solid hopkinson bar 16 is slightly less than the internal diameter of upper hollow shaft 15, and the two in the present embodiment differs
0.1mm；The upper end of upper hollow shaft 15 is left screw thread and is connected with plane rough cutter piece 9, and the lower end of bottom solid hopkinson bar 16 equally sets screw thread and thickness
The upper surface center position connection of compaction hammer 8 of round pie.
Exemplified by disturbing cohesive soil, illustrate that the utility model prepares the operating process of disturbed sample：
(1) equipment is installed
1. sample preparation height is calculated according to sample preparation ratio of height to diameter and soil sample diameter first, if soil sample is highly less than or equal to lower casing
2 height, directly can produce soil sample using lower casing 2, otherwise should combine casing 3 and make soil sample together.Herein for more multiple
Miscellaneous situation, i.e. joint are illustrated using the sample making course of upper casing 3 and lower casing 2；
2. being connected the lower upper end of casing 2 with the upper lower end of casing 3 by internal and external screw thread, casing is highly adjusted according to sample preparation
Total height, and casing total height is higher 2cm than sample；
3. by the lower hole of 2 lower end aligned pedestal of casing 10, the two is connected by screw thread, the lower outer wall zero of casing 2 after tightening
Graduation mark should be concordant with the upper surface of pedestal 10；
4. the waterproof rubber pattern 4 of suitable tubular (thickness is typically more than sample 7cm in 0.5mm, length) is used from connection
Good casing and the top of pedestal 10 or bottom penetrate, and are passed from the other end, the part that both ends are had more is counter to be placed on casing and base
On the outer wall of seat 10；
5. the backing plate 11 for processing of learning from else's experience is placed on sample preparation table top that is clean and tidy, smooth and drying, the upper surface of backing plate 11 is put permeable
Stone 12, and vaseline 14 will be applied on the outer wall of backing plate 11 and permeable stone 12；
6. the pedestal 10 for having put rubber pattern 4 is placed on permeable stone 12 and backing plate 11, the inwall of pedestal 10 and backing plate 11
Space is sealed by having applied vaseline 14 between the outer wall of permeable stone 12, and ensures the upper surface of permeable stone 12 and the lower quarter of 2 outer wall of casing zero
It is concordant to spend line；
7. gas between rubber pattern 4 and casing is reserved into steam vent 5 by upper casing 3 and the lower outer wall of casing 2 with air-breathing ball to inhale
Go out, rubber pattern 4 is close to casing inwall；
8. unclamping the limiter 7 on transmission rod 6, power transmission pole length is adjusted according to casing total height, treats bottom solid hopkinson bar 16
After extension elongation determines, then limiter 7 is tightened to fix bottom solid hopkinson bar 16, and compaction hammer 8 and plane rough cutter piece 9 are connected respectively
It is connected to the lower end and upper end of transmission rod 6.
(2) native sample compacting
1. the soil body needed for required single soil sample is weighed according to soil body dry density corresponding to soil sample volume and sample preparation compactness
Gross mass, and according to testing regulations requirement will weigh the soil body and be divided into etc. 5-8 parts of quality；
2. taking first part of soil body to be slowly sent into casing, shakeout with the plane rough cutter piece 9 of the upper end of transmission rod 6, by casing outside
Wall graduation mark 13 is read and inserts soil sample loose laying depth h, and the soil sample height h1 after hitting reality, loose laying depth are calculated according to soil sample dry density
It is that this should hit real height to subtract height (h-h1) after hitting reality；
3. hitting in real time, the distance holding on the bottom surface of compaction hammer 8 and soil sample surface is constant, compaction hammer 8 must not be made fluctuated and
Cause soil sample compactness uneven, specifically fall away from being determined according to trial test, fall away from control by means of casing outer wall graduation mark 13；
4. after this part of soil sample hits actual arrival predetermined altitude h1, the 2nd part of soil sample is taken slowly to be sent into casing, subsequent step and
A soil sample is identical, and the 3rd part, the 4th part ... is waited, and carries out hitting reality according to above-mentioned steps；
5. hit during reality, because soil body height is being continuously increased in casing, therefore can be as needed, utilize limiter 7
Adjust the total length of transmission rod 6.
(3) sample preparation device is removed
1. treating that each part soil sample is inserted, hit after the completion of reality, sample is placed on ordinary triaxial test instrument base, carries out water-filling
Saturation；
After 2. sample is fully saturated, the rubber pattern 4 being placed in advance on upper casing 3 and pedestal 10 outer wall is reversed, by pedestal
10 gently remove together with casing from sample, after the lower bolster 11 of permeable stone 12 is taken out；
3. sample is positioned over ordinary triaxial test instrument base together with permeable stone 12, sample bottom has more 4 sets of rubber pattern
Tightly wrapped on triaxial apparatus base and with rubber band, top has more rubber pattern 4 and equally originated in rubber band in load plate.
After the completion of above-mentioned steps, soil sample completes, and soil sample will be consolidated, loaded in next step.
Embodiment 2
The Each part of triaxial test disturbed soil sample preparation device described in the present embodiment and annexation with reality
Applying technical parameter identical in example 1, different is：
1) aperture of steam vent 5 is 1.7mm；
2) height of pedestal 10 is 3cm；
3) hole diameter is slightly larger than the lower external diameter of casing 2, the two difference 0.25mm；
4) cross-sectional diameter of backing plate 11 is identical with permeable stone 12 and is slightly less than the hole diameter of pedestal 10, the two difference 0.4mm；
5) ratio of height to diameter of casing 2 is 2.2 under；
6) the barrel thickness 1.2mm of casing 2 under；
7) the barrel thickness 0.7mm of casing 3 on；
8) the slightly biased upper position in the lower end of upper hollow shaft 15 of transmission rod 6 opens up two diameter 0.7mm hole；
9) external diameter of upper hollow shaft 15 is 2.3mm, wall thickness 0.4mm；
10) diameter of bottom solid hopkinson bar 16 is slightly less than the internal diameter of upper hollow shaft 15, the two difference 0.15mm.
Embodiment 3
The Each part of triaxial test disturbed soil sample preparation device described in the present embodiment and annexation with reality
Applying technical parameter identical in example 1, different is：
1) aperture of steam vent 5 is 2mm；
2) height of pedestal 10 is 4cm；
3) hole diameter is slightly larger than the lower external diameter of casing 2, the two difference 0.3mm；
4) cross-sectional diameter of backing plate 11 is identical with permeable stone 12 and is slightly less than the hole diameter of pedestal 10, the two difference 0.5mm；
5) ratio of height to diameter of casing 2 is 2.5 under；
6) the barrel thickness 1.5mm of casing 2 under；
7) the barrel thickness 1mm of casing 3 on；
8) the slightly biased upper position in the lower end of upper hollow shaft 15 of transmission rod 6 opens up two diameter 1mm hole；
9) external diameter of upper hollow shaft 15 is 2.5mm, wall thickness 0.5mm；
10) diameter of bottom solid hopkinson bar 16 is slightly less than the internal diameter of upper hollow shaft 15, the two difference 0.2mm.
Claims (10)
1. triaxial test disturbed soil sample preparation device, it is characterised in that：Set in fact including sample preparation cylinder with hitting in sample preparation cylinder is arranged at
It is standby；
The sample preparation cylinder includes base (1), lower casing (2), upper casing (3) and rubber pattern (4), and lower casing (2) is placed in base (1)
On, top and the upper casing (3) of lower casing (2) connect and compose casing main body, and upper casing (3) can be stretched up and down along lower casing (2)
Contracting is to adjust the total height of casing main body, and the outer wall of casing main body is equipped with uniform graduation mark (13), under zero graduation line is located at
The lower end of casing (2), rubber pattern (4) is close to cylinder inboard wall after passing through casing main body and both ends are counter is placed on casing main body and base
(1) outer wall of outer wall, upper casing (3) and lower casing (2) respectively set a steam vent (5) with realize inwall and rubber pattern (4) it
Between space vacuumize；
It is described to hit real equipment including transmission rod (6), compaction hammer (8) and dig rough cutter piece (9), the lower end of transmission rod (6) and compaction hammer
(8) connect, lower end connection plane rough cutter piece (9), transmission rod (6) includes upper hollow shaft (15), bottom solid hopkinson bar (16) and spacing
Device (7), bottom solid hopkinson bar (16) are socketed in upper hollow shaft (15) by limiter (7) and can be in upper hollow shafts (15)
It is flexible up and down, and by the total length of limiter (7) adjustment transmission rod (6).
2. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：The base (1) includes base
Seat (10), backing plate (11) and permeable stone (12), the upper surface center of pedestal (10) opens up the circular opening completely penetrated through, hole
Inwall sets screw thread, and hole diameter is slightly larger than the external diameter of lower casing (2), and backing plate (11) is placed in hole, and backing plate is put above (11)
Permeable stone (12) is put, after permeable stone (12) is placed in backing plate (11) upper surface, the upper surface of permeable stone (12) and the top of pedestal (10)
Face, the outer wall zero graduation line of lower casing (2) are in same level.
3. triaxial test disturbed soil sample preparation device according to claim 2, it is characterised in that：The pedestal (10) is prism
Shape, it is highly 2-4cm.
4. triaxial test disturbed soil sample preparation device according to claim 2, it is characterised in that：The backing plate (11) is cylinder
The solid backing plate of external shape, its cross-sectional diameter is identical with permeable stone (12) and is slightly less than the hole diameter of pedestal (10).
5. triaxial test disturbed soil sample preparation device according to claim 2, it is characterised in that：The hole of the pedestal (10)
The vaseline (14) for anti-leak-stopping soil is filled in space between backing plate (11).
6. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：The upper casing (3) and under
Casing (2) is thin hollow transparent safety glass pipe, and outer wall front and the back side are provided with uniform graduation mark (13), and graduation mark
(13) unit length is 1mm；Upper casing (3) is on the lower side close to vertical midpoint close to vertical midpoint position on the upper side, lower casing (2)
Leave aperture 1.5-2mm steam vent (5) in position.
7. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：The height of the lower casing (2)
Footpath ratio is 2-2.5, and its bottom outer surface is provided with the screw thread for being easy to be connected in pedestal (10) hole, and screw thread is located at zero graduation line
Hereinafter, vertically midpoint up sets screw thread and is connected with upper casing (3) its inwall, barrel thickness 1-1.5mm.
8. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：The height of the upper casing (3)
Degree is identical with lower casing (2), its outer wall vertically midpoint toward having for the upper and lower screw thread to stretch in lower casing (2),
Its external diameter is slightly less than the internal diameter of lower casing (2), barrel thickness 0.5-1mm.
9. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：It is described to hit real equipment by stainless
Steel material is made, and the upper end of upper hollow shaft (15) is provided with the screw thread for being used for being connected with plane rough cutter piece (9), upper hollow shaft (15)
Lower end position on the upper side open up two diameter 0.5-1mm hole, hole is symmetrical along upper hollow shaft (15), and in hole
Wall reserves screw thread, and bottom solid hopkinson bar (16) is fixedly connected by limiter (7) insertion hole with upper hollow shaft (15), and bottom is solid
The lower end of bar (16) is provided with the screw thread for being used for being connected with compaction hammer (8) upper surface center position of thick round pie.
10. triaxial test disturbed soil sample preparation device according to claim 1, it is characterised in that：The upper hollow shaft
(15) external diameter is 2-2.5mm, wall thickness 0.3-0.5mm, and the diameter of bottom solid hopkinson bar (16) is slightly less than upper hollow shaft (15)
Internal diameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333807.6U CN207066817U (en) | 2017-03-31 | 2017-03-31 | Triaxial test disturbed soil sample preparation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720333807.6U CN207066817U (en) | 2017-03-31 | 2017-03-31 | Triaxial test disturbed soil sample preparation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489782A (en) * | 2018-03-16 | 2018-09-04 | 郑州大学 | A kind of the direct shear test sample preparation device and its application method of infiltration type slip casting solidified earth |
| CN108663249A (en) * | 2018-07-28 | 2018-10-16 | 浙江大学城市学院 | A kind of preparation facilities and preparation method thereof of soil test cohesiveless soil sample |
| CN108663242A (en) * | 2017-03-31 | 2018-10-16 | 浙江大学 | A kind of ordinary triaxial test disturbed soil sample preparation device and method |
| CN109827824A (en) * | 2019-03-21 | 2019-05-31 | 招商局重庆交通科研设计院有限公司 | A kind of device making geotechnical sample crack |
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2017
- 2017-03-31 CN CN201720333807.6U patent/CN207066817U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663242A (en) * | 2017-03-31 | 2018-10-16 | 浙江大学 | A kind of ordinary triaxial test disturbed soil sample preparation device and method |
| CN108489782A (en) * | 2018-03-16 | 2018-09-04 | 郑州大学 | A kind of the direct shear test sample preparation device and its application method of infiltration type slip casting solidified earth |
| CN108663249A (en) * | 2018-07-28 | 2018-10-16 | 浙江大学城市学院 | A kind of preparation facilities and preparation method thereof of soil test cohesiveless soil sample |
| CN108663249B (en) * | 2018-07-28 | 2023-08-18 | 浙江大学城市学院 | Preparation device and preparation method of non-cohesive soil sample for geotechnical test |
| CN109827824A (en) * | 2019-03-21 | 2019-05-31 | 招商局重庆交通科研设计院有限公司 | A kind of device making geotechnical sample crack |
| CN109827824B (en) * | 2019-03-21 | 2024-01-30 | 招商局重庆交通科研设计院有限公司 | Device for manufacturing geotechnical sample cracks |
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