CN208636121U - A kind of preparation of soil sample device of unsaturated soil dialyzability assay - Google Patents
A kind of preparation of soil sample device of unsaturated soil dialyzability assay Download PDFInfo
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- CN208636121U CN208636121U CN201821350227.9U CN201821350227U CN208636121U CN 208636121 U CN208636121 U CN 208636121U CN 201821350227 U CN201821350227 U CN 201821350227U CN 208636121 U CN208636121 U CN 208636121U
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- cutting ring
- soil
- tubular
- native
- soil sample
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Abstract
The utility model discloses a kind of preparation of soil sample devices of unsaturated soil dialyzability assay, it includes tubular cutting native cutting ring, it is described it is tubular cut native cutting ring be transparent conical tube, the tubular lower ending opening internal diameter for cutting native cutting ring is less than the tubular upper end opening internal diameter for cutting native cutting ring, so that the diameter of soil sample is identical as lower ending opening internal diameter, so that soil sample enters tubular cut after native cutting ring after cutting ring, soil sample will not be disturbed by inner wall, it ensure that soil sample surface is smooth, free from flaw, and the defects of soil sample is not in avalanche chip off-falling；The tubular outer wall for cutting native cutting ring is equipped with graduated scale, and for the zero point of the graduated scale at the tubular lower ending opening for cutting native cutting ring, graduated scale can control depth of cut, can accurately control the quality and volume of soil sample；The tubular wall thickness for cutting native cutting ring is less than 0.5mm, reduces the tubular disturbance for cutting native cutting ring to cutting ring sample, and avoiding, which influences experiment soil sample, cuts soil property amount.
Description
Technical field
The utility model relates to unsaturated soil dialyzability assay technical fields, and in particular to a kind of unsaturated soil dialyzability assay
Preparation of soil sample device.
Background technique
Unsaturated soil is three-phase porous media, and it includes solid phase, gas phase and liquid phases.Due to the presence of gas phase, unsaturated soil
More a stress variables, i.e. matric suction.The surface and liquid and gas phase in hole that matric suction is inside soil body solid phase
Interaction and generate, the strength and stiffness of the soil body can be made to increase.What soil-water characteristic curve reflected is the matrix of unsaturated soil body
The relationship of suction and its moisture content, it has weight for mechanical property, permeability parameters and the shearing strength etc. of predicting unsaturated soil
Meaning is wanted, and carries out a necessary condition of side slope dynamic hydraulic analysis.Traditional testing method has: filter paper method, steams
Vapour balancing method, Dew-point potentiometer method, pressure plare method, Tempe instrument method of testing and dialysis etc. are at present using more
Dialysis.
The great advantage of dialysis is that suction disobeys manually air pressure generation in the soil body, soil mention in air pressure be equal to it is extraneous big
Air pressure, hydraulic pressure are for negative value.This state is consistent with the actual state of the Nature.In addition, from security standpoint, 12MPa's
Suction can reach under conditions of not taking any safety measure.Dialysis reaches equilibrium state generally and needs 4-5 days time,
After balance reaches, soil sample is taken out from semi-permeable membrane, its water content is determined by weighing.Dialysis test at present
Preparation of soil sample tool is fret saw, with fret saw that initial soil sample (being called cutting ring sample) is respectively blocking by hand, then by each fritter
It is cut into the earth pillar of 10g or so.However dialysis precision prescribed itself is high, operation is fine, the uniformity coefficient of soil sample is to can not ignore
Influence factor, the soil sample sample prepared with fret saw is coarse, has a significant impact to the result that obtains of test, such as each soil sample
Size shape, the smooth degree of soil sample outer wall all has an impact to dress sample, if the peripheral solution that quality of soil sample difference is measured is dense
Degree is inevitable different, if soil sample outer wall is rough, will necessarily generate bubble after being packed into semi-permeable membrane, influences connecing for solution and soil sample
Touching, suction reduce.
Utility model content
The purpose of this utility model is to provide a kind of preparation of soil sample devices of unsaturated soil dialyzability assay, existing to solve
There is the soil sample of unsaturated soil dialyzability assay to produce non-uniform problem.
To achieve the above object, the utility model provides a kind of preparation of soil sample device of unsaturated soil dialyzability assay,
Native cutting ring is cut including tubular, and described tubular to cut native cutting ring be transparent conical tube, the tubular lower ending opening internal diameter for cutting native cutting ring
Less than the tubular upper end opening internal diameter for cutting native cutting ring, the tubular outer wall for cutting native cutting ring is equipped with graduated scale, the scale
For the zero point of ruler at the tubular lower ending opening for cutting native cutting ring, the tubular wall thickness for cutting native cutting ring is less than 0.5mm.
Wherein, the range of the graduated scale is 0-30mm.
Wherein, the preparation of soil sample device of the unsaturated soil dialyzability assay further includes cutting ring fixator, and the cutting ring is fixed
Device includes retainer body and three fixed jaws, and three fixed jaws are uniformly fixed on the edge of retainer body, described solid
Determine pawl in 3/4 arc-shaped, is equipped with annular groove in the tubular graduated scale upper end for cutting native cutting ring, it is described tubular to cut native ring
There are three knife is set, three described tubular to cut native cutting ring and is individually fixed in three fixed jaws by the annular groove.
Wherein, the groove depth of the annular groove is 0.3mm, groove width 7mm.
Wherein, the preparation of soil sample device of the unsaturated soil dialyzability assay further includes leveraged pressure device, the lever pressure
Power device includes pedestal, vertical screw rod, nut, crossbeam, cantilever and transmission rod, and the pedestal is rectangular seat, described
Pedestal one end interval is welded with two vertical screw rods, and the nut is equipped with two pairs, and two pairs of nuts are separately positioned on two
On vertical screw rod described in root, the both ends of the crossbeam are individually fixed between two pairs of nuts, and the fixing end of the cantilever is hung down
Straight hinge is connected to the middle section of the crossbeam, in the cantilever away from hingedly fixing the power transmission at 1/5 that its fixing end is arm length
Bar, the other end of the transmission rod are fixed on the center of the retainer body.
Wherein, it is equipped with lever in the free end of the cantilever, is equipped with circular hole in the end of the lever.
Wherein, the preparation of soil sample device of the unsaturated soil dialyzability assay further includes cutting ring sample cutting ring, in the pedestal
Upper surface is equipped with base groove, and the center of the base groove is corresponding with the axle center of the transmission rod under overhang, institute
It states cutting ring sample cutting ring and is fixed on the base groove.
Wherein, the height of the cutting ring sample cutting ring is 2-3cm.
Wherein, the preparation of soil sample device of the unsaturated soil dialyzability assay further includes bulldozing device, the bulldozing device packet
Push plate, push rod and hairbrush are included, the push plate is in the form of annular discs, and the fixing end of the push rod is perpendicularly fixed at the center of the push plate,
Hairbrush is equipped in the fixing end of the push rod.
The utility model has the advantages that
The utility model provides a kind of preparation of soil sample device of unsaturated soil dialyzability assay, tubular to cut under native cutting ring
End opening internal diameter is less than the upper end opening inside diameter, and the diameter of soil sample is identical as lower ending opening internal diameter, so that soil sample enters tubular cut
After native cutting ring after cutting ring, soil sample will not be disturbed by inner wall, ensure that soil sample surface is smooth, free from flaw, and soil sample is not in collapse
Fold block the defects of；Its tubular graduated scale for cutting native cutting ring can control depth of cut, can accurately control the quality of soil sample
And volume；Its tubular wall thickness for cutting native cutting ring is less than 0.5mm, reduces the tubular disturbance for cutting native cutting ring to cutting ring sample, avoids shadow
It rings experiment soil sample and cuts soil property amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preparation of soil sample device for the unsaturated soil dialyzability assay that embodiment 1 provides.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the forward structure schematic diagram for the cutting ring fixator that embodiment 1 provides.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the tubular structural schematic diagram for cutting native cutting ring that embodiment 1 provides.
Fig. 6 is the cutting ring fixator and the tubular connection relationship diagram for cutting native cutting ring that embodiment 1 provides.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the structural schematic diagram for the bulldozing device that embodiment 3 provides.
In figure: 1- leveraged pressure device, 2- cutting ring fixator, 3- is tubular to cut native cutting ring, and 4- cutting ring sample cutting ring, 5-, which bulldozes, to be filled
It sets, 11- pedestal, the vertical screw rod of 12-, 13- nut, 14- crossbeam, 15- cantilever, 16- transmission rod, 17- lever, 18- circular hole, 21-
Retainer body, 22- fixed jaw, 31- graduated scale, 32- annular groove, 51- push plate, 52- push rod, 53- hairbrush.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
As shown in figs. 1-7, embodiment 1 provides a kind of preparation of soil sample device of unsaturated soil dialyzability assay comprising thick stick
Rod pressure device 1, tubular cuts native cutting ring 3 and cutting ring sample cutting ring 4 at cutting ring fixator 2.
Leveraged pressure device 1 includes pedestal 11, vertical screw rod 12, nut 13, crossbeam 14, cantilever 15 and transmission rod 16,
Pedestal 11 is rectangular seat 11, is welded with two vertical screw rods 12 at 11 one end interval of pedestal, nut 13 is equipped with two pairs, two pairs
Nut 13 is separately positioned on two vertical screw rods 12, i.e., every vertical screw rod 12 has two nuts 13, totally four nuts 13, horizontal
The both ends of beam 14 are individually fixed between two pairs of nuts 13, and height of two pairs of nuts 13 to adjust cantilever 15, cantilever 15 is consolidated
For fixed end vertical articulation in the middle section of crossbeam 14, what it is in cantilever 15 is hinged fixing force transfer at the 1/5 of the length of cantilever 15 away from its fixing end
The free end of bar 16, cantilever 15 is equipped with lever 17, is equipped with circular hole 18 in the end of lever 17.
Cutting ring fixator 2 includes retainer body 21 and three fixed jaws 22, and three fixed jaws 22 are uniformly fixed on fixation
The edge of device ontology 21, fixed jaw 22 are in 3/4 arc-shaped, and the center of retainer body 21 is connect with transmission rod 16.
Tubular to cut native cutting ring 3 as transparent conical tube, the tubular lower ending opening internal diameter for cutting native cutting ring 3 cuts native cutting ring less than tubular
3 upper end opening internal diameter, when cutting soil, the diameter of soil sample is identical as lower ending opening internal diameter, and only lower ending opening can be to soil sample in pipe
There are disturbance, into it is tubular cut native cutting ring 3 after, inner wall would not cause to disturb to soil sample, ensure that soil sample surface is smooth, without splitting
Seam, and the defects of soil sample is not in avalanche chip off-falling, the tubular outer wall for cutting native cutting ring 3 is equipped with graduated scale 31, the amount of graduated scale 31
Journey is 0-30mm, and the zero point of graduated scale 31 is at the tubular lower ending opening for cutting native cutting ring 3, i.e., graduated scale 31 is opened from conical tube lower end
Opening's edge conical tube is set up, and graduated scale 31 can control depth of cut, can accurately be controlled and be cut soil property amount and volume, tubular
The wall thickness for cutting native cutting ring 3 is less than 0.5mm, and the tubular wall thickness for cutting native cutting ring 3 can cause to disturb, be less than when cutting soil to cutting ring sample
The wall thickness of 0.5mm reduces the tubular disturbance for cutting native cutting ring to cutting ring sample, and avoiding, which influences experiment soil sample, cuts soil property amount, cuts tubular
31 upper end of graduated scale of native cutting ring 3 is equipped with annular groove 32, specifically, at away from the tubular lower ending opening 3.5cm for cutting native cutting ring 3
Equipped with annular groove 32, the groove depth of annular groove 32 is 0.3mm, groove width 7mm, tubular to cut there are three native cutting ring 3 sets, three pipes
Shape cuts three fixed jaws 22 that native cutting ring 3 is individually fixed in cutting ring fixator 2 by annular groove 32, in other words, fixed jaw 22
The outer diameter of internal diameter and annular groove 32 of circular arc match, allow it is tubular cut native cutting ring 3 and stablize be embedded in consolidating for fixator 2
Determine on pawl 22, since fixed jaw 22 is 3/4 circular arc, enable it is tubular cut native cutting ring 3 and easily install, it is solid and reliable,
And apply when cutting soil biggish pressure will not make it is tubular cut native cutting ring 3 and fall off, soil sample can be convenient with easy removal after cutting
It is durable, it furthermore cuts native cutting ring 3 using three tubular while cutting soil, all the same in terms of cutting native dynamics, speed, the soil sample of acquisition is not
It can have differences, so that the result of multiple groups dialyzability assay provides reliably with more comparison value to study the property of unsaturated soil
Test data.
It is equipped with base groove (not shown) in the upper surface of pedestal 11, under the center of base groove and overhang
The axle center of transmission rod 16 is corresponding, and cutting ring sample cutting ring 4 is fixed on the trough rim of the base groove, and the height of cutting ring sample cutting ring 4 is
2-3cm.In a preferred embodiment of this embodiment, 4 height of cutting ring sample cutting ring is 2cm, 2.5cm or 3cm, is cutting soil with tubular
Different height can be cut out when cutting ring 3, the column soil sample of different quality provides various selection for Variable Control.
Embodiment 2
The preparation of soil sample device for the unsaturated soil dialyzability assay that embodiment 2 provides and the structure of embodiment 1 are essentially identical, under
Face is only described difference.
In the present embodiment, the tubular height for cutting native cutting ring 3 is 50mm, and the internal diameter of upper end opening is 19.86mm, and lower end is opened
The internal diameter of mouth is 18mm.
In the present embodiment, 16 lower end of transmission rod is equipped with external screw thread, and 2 center of cutting ring fixator is equipped with and 16 lower end of transmission rod
The threaded hole that external screw thread matches, transmission rod 16 is detachably connected by screw thread with cutting ring fixator 2, can independently take out, and passes
16 upper end of power bar is equipped with latching hole, and transmission rod 16 is hinged on cantilever 15 by latching.
In the present embodiment, pedestal 11 a length of 20cm, width 8cm, thickness 2cm.The center of 11 groove of pedestal is away from being equipped with
At 11 center of pedestal of the end face 4cm of two vertical screw rods 12, the radius of 11 groove of pedestal is 30.9mm, depth 0.5cm, bottom
Seat groove is to fixed cutting ring sample cutting ring 4.
In the present embodiment, 14 length of crossbeam is 8cm, provides rotation with pin, cantilever 15 can be surrounded in vertical direction
The central point of crossbeam 14 rotates, since transmission rod 16 and cantilever 15 are articulated connections, so that transmission rod 16 begins under the effect of gravity
It keeps eventually straight down, cantilever 15, transmission rod 16 and crossbeam 14 constitute lever construction, and the central point of crossbeam 14 is as lever
It sticks up a little.
In the present embodiment, cantilever 15 is rectangular shape, a length of 20cm, width 0.3cm, a height of 3cm, in cantilever 15
Transmission rod 16 is installed, in central point 13- of 15 length direction of cantilever apart from crossbeam 14 at central point 4cm of the length direction apart from crossbeam 14
It is lever 17 at 20cm, circular hole 18 can hang counterweight hook, and to be supplied to below circular hole 18, lever construction is constant to be cut
Native power, above-mentioned size make the lever ratio of lever construction be 1:5.It furthermore, can be artificial when 18 lower section of circular hole does not hang counterweight hook
Directly pressing lever 17 shears soil sample.
Embodiment 3
As shown in figure 8, the preparation of soil sample device for the unsaturated soil dialyzability assay that embodiment 3 provides and the knot of embodiment 1 or 2
Structure is essentially identical, is only described below to difference.
In the present embodiment, the preparation of soil sample device of unsaturated soil dialyzability assay further includes bulldozing device 5, bulldozing device 5
With leveraged pressure device 1, cutting ring fixator 2, it is tubular cut 4 split settings of native cutting ring 3 and cutting ring sample cutting ring, bulldozing device 5 wraps
Include push plate 51, push rod 52 and hairbrush 53, wherein push plate 51 is in the form of annular discs, and the fixing end of push rod 52 is perpendicularly fixed at push plate 51
Center is equipped with hairbrush 53 on one section of push rod 52 close to push plate 51, i.e., is equipped with hairbrush 53 in the fixing end of push rod 52.
In the present embodiment, the radius of push plate 51 is 9mm, and with a thickness of 3mm, push rod 52 is the cylindrical thin bar of long 8cm,
The one section hairbrush 53 that is equipped with around push rod 52 of the direction apart from push plate 510-5mm on push rod 52, in use, being smeared on hairbrush 53
Vaseline, it is efficient and convenient to cut native 3 inner wall of cutting ring tubular when releasing soil sample every time and smear one layer of vaseline, due to tubular
It is smaller to cut native 3 internal diameter of cutting ring, vaseline can not be smeared with other devices, vaseline could can only be smeared using this device equal
It is even, guarantee that next soil sample is smoothly released.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (9)
1. a kind of preparation of soil sample device of unsaturated soil dialyzability assay, it is characterised in that: the soil of the unsaturated soil dialyzability assay
Sample preparation facilities include it is tubular cut native cutting ring (3), described tubular cut native cutting ring (3) are transparent conical tube, described tubular to cut native ring
The lower ending opening internal diameter of knife (3) is less than the tubular upper end opening internal diameter for cutting native cutting ring (3), described tubular to cut native cutting ring (3)
Outer wall be equipped with graduated scale (31), the zero point of the graduated scale (31) is at the tubular lower ending opening for cutting native cutting ring (3), institute
The tubular wall thickness for cutting native cutting ring (3) is stated less than 0.5mm.
2. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 1, it is characterised in that: the graduated scale
(31) range is 0-30mm.
3. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 1, it is characterised in that: the unsaturation
The preparation of soil sample device of native dialyzability assay further includes cutting ring fixator (2), and the cutting ring fixator (2) includes retainer body
(21) and three fixed jaws (22), three fixed jaws (22) are uniformly fixed on the edge of retainer body (21), described solid
Pawl (22) are determined in 3/4 arc-shaped, are equipped with annular groove in the tubular graduated scale (31) upper end for cutting native cutting ring (3)
(32), it is described it is tubular cut there are three native cutting ring (3) sets, three described tubular cut native cutting ring (3) pass through the annular groove (32)
It is individually fixed in three fixed jaws (22).
4. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 3, it is characterised in that: the annular is recessed
The groove depth of slot (32) is 0.3mm, groove width 7mm.
5. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 3, it is characterised in that: the unsaturation
The preparation of soil sample device of native dialyzability assay further includes leveraged pressure device (1), and the leveraged pressure device (1) includes pedestal
(11), vertical screw rod (12), nut (13), crossbeam (14), cantilever (15) and transmission rod (16), the pedestal (11) are rectangular
Shape pedestal is welded with two vertical screw rods (12) at the pedestal (11) one end interval, and the nut (13) is equipped with two pairs,
Two pairs of nuts (13) are separately positioned on two vertical screw rods (12), and the both ends of the crossbeam (14) are individually fixed in
Between two pairs of nuts (13), the fixing end vertical articulation of the cantilever (15) is in the middle section of the crossbeam (14), described
Cantilever (15) away from its fixing end be arm length 1/5 at hingedly fix the transmission rod (16), the transmission rod (16) it is another
The center of the retainer body (21) is fixed in one end.
6. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 5, it is characterised in that: in the cantilever
(15) free end is equipped with lever (17), is equipped with circular hole (18) in the end of the lever (17).
7. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 5, it is characterised in that: the unsaturation
The preparation of soil sample device of native dialyzability assay further includes cutting ring sample cutting ring (4), and it is recessed to be equipped with pedestal in the upper surface of the pedestal (11)
Slot, the center of the base groove is corresponding with the axle center of the transmission rod (16) under overhang, the cutting ring sample cutting ring
(4) it is fixed on the base groove.
8. the preparation of soil sample device of unsaturated soil dialyzability assay according to claim 7, it is characterised in that: the cutting ring sample
The height of cutting ring (4) is 2-3cm.
9. according to claim 1 in -8 any unsaturated soil dialyzability assay preparation of soil sample device, it is characterised in that: institute
The preparation of soil sample device for stating unsaturated soil dialyzability assay further includes bulldozing device (5), and the bulldozing device (5) includes push plate
(51), push rod (52) and hairbrush (53), the push plate (51) is in the form of annular discs, and the fixing end of the push rod (52) is perpendicularly fixed at institute
The center for stating push plate (51) is equipped with hairbrush (53) in the fixing end of the push rod (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350227.9U CN208636121U (en) | 2018-08-21 | 2018-08-21 | A kind of preparation of soil sample device of unsaturated soil dialyzability assay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821350227.9U CN208636121U (en) | 2018-08-21 | 2018-08-21 | A kind of preparation of soil sample device of unsaturated soil dialyzability assay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208636121U true CN208636121U (en) | 2019-03-22 |
Family
ID=65742531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821350227.9U Expired - Fee Related CN208636121U (en) | 2018-08-21 | 2018-08-21 | A kind of preparation of soil sample device of unsaturated soil dialyzability assay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208636121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579372A (en) * | 2019-09-18 | 2019-12-17 | 四川大学 | novel undisturbed soil column sampling device and use method thereof |
| CN112268776A (en) * | 2020-11-17 | 2021-01-26 | 南京大学 | Preparation method of fractured soil compressive strength test sample |
-
2018
- 2018-08-21 CN CN201821350227.9U patent/CN208636121U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579372A (en) * | 2019-09-18 | 2019-12-17 | 四川大学 | novel undisturbed soil column sampling device and use method thereof |
| CN112268776A (en) * | 2020-11-17 | 2021-01-26 | 南京大学 | Preparation method of fractured soil compressive strength test sample |
| CN112268776B (en) * | 2020-11-17 | 2022-08-19 | 南京大学 | Preparation method of fractured soil compressive strength test sample |
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