CN105865877A - Non-cohesive soil sample filling mold of geotechnical triaxial test - Google Patents
Non-cohesive soil sample filling mold of geotechnical triaxial test Download PDFInfo
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- CN105865877A CN105865877A CN201610368860.XA CN201610368860A CN105865877A CN 105865877 A CN105865877 A CN 105865877A CN 201610368860 A CN201610368860 A CN 201610368860A CN 105865877 A CN105865877 A CN 105865877A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention aims at providing a non-cohesive soil sample filling mold of a geotechnical triaxial test, aiming at solving the problems in the prior art that a mold is easy to deform and dislocate, and a test sample is difficult to mold and is easy to deform. The non-cohesive soil sample filling mold of the geotechnical triaxial test, disclosed by the invention, comprises a round mold and a hoop, wherein the round mold is provided with a containing cavity; grid lines for reducing overlarge partial negative pressure are arranged on an inner wall of the round mold; the round mold comprises a first half-round mold and a second half-round mold; a bulge is arranged at the end part of the first half-round mold; a groove adaptive to the bulge of the first half-round mold is formed in the end part of the second half-round mold; the end parts of the first half-round mold and the second half-round mold abut against each other; and the hoop sleeves the round mold and is used for fastening the first half-round mold and the second half-round mold. The non-cohesive soil sample filling mold of the geotechnical triaxial test, provided by the invention, has the beneficial effects that the mold is not easy to deform and dislocate, a test sample is simple to mold, and the test sample is not easy to deform after molding.
Description
Technical field
The present invention relates to assay device field, particularly relate to a kind of geotechnical centrifuge model cohesiveless soil dress original mold tool.
Background technology
Geotechnical centrifuge model be measure soil shearing strength a kind of method, sample under a certain fixing ambient pressure, by
Cumulative big axial compressive force, until sample destroys, can make Mohr's stress circle accordingly.Same soil sample is respectively around different
Testing under pressure, available one group of Mohr's stress circle, the common tangent making these Mohr's stress circles i.e. obtains shearing strength
Envelope, thus try to achieve the Shear Strength Index of soil sample.Geotechnical centrifuge model needs soil sample to be standard round column type, especially
For cohesiveless soil, owing between soil particle, cementitiousness is the most weak, cohesiveless soil is difficult to form standard round in its natural state
Column sample, and the precision of result of the test is affected very big by the preparation of sample, thus propose cohesiveless soil sample shaping mould
The demand of tool.
First, geotechnical centrifuge model cohesiveless soil of the prior art dress original mold tool uses plexiglass box, has
Machine glass mold there will be deformation under the effect of inside and outside pressure difference.
Secondly, lucite mould of the prior art is split design, and the faying face of lucite mould is smooth, infinitely
Position design, thus glass mold is susceptible to the relative changing of the relative positions and causes sample deformation after loading soil sample, sample molding reaches not
To test standard.
Again, lucite mould inner surface is smooth, sample in the case of negative pressure, the negative pressure that sample diverse location is subject to
Intensity is inconsistent, causes sample to be easily deformed.
In sum, geotechnical centrifuge model cohesiveless soil of the prior art dress original mold tool there is the problem that mould holds
The yielding changing of the relative positions, sample difficult forming and be easily deformed.
Summary of the invention
It is an object of the invention to provide a kind of geotechnical centrifuge model cohesiveless soil dress original mold tool, to solve in prior art
The mould existed is easily deformed the changing of the relative positions, sample difficult forming and the problem being easily deformed.
The invention discloses a kind of geotechnical centrifuge model cohesiveless soil dress original mold tool, including circle mould and clip, described round mould
Being provided with receiving chamber, described round mould inwall is provided with for reducing the grid lines that local decompression is excessive, and described round mould includes the
One semicircle mould and the second semicircle mould, the end of described first semicircle mould is provided with projection, and the end of described second semicircle mould is arranged
Having the protruding adaptive groove with described first semicircle mould, the end of described first semicircle mould and described second semicircle mould offsets
Connecing, it is outer for fastening described first semicircle mould and described second semicircle mould that described hoop sleeve is contained in described round mould.
Further, described projection includes first protruding and the second projection, described first protruding and described second projection
It is symmetricly set in described first semicircle mould both ends.
Further, described groove includes the first groove and the second groove, described first groove and described second groove
It is symmetricly set in described second semicircle mould both ends.
Further, described first semicircle mould and described second semicircle mould are provided with internal layer and outer layer, and described first
Protruding and described second projection is arranged on the internal layer of described first semicircle mould, and described first groove and described second groove are arranged
On the internal layer of described second semicircle mould.
Further, the top and bottom of described round mould are all set with clip.
Further, the bottom of described round mould is provided with the boss for carrying described clip.
Further, the middle part of the internal layer of described first semicircle mould is provided with gas collection groove, in the middle part of described gas collection groove
It is provided with the negative inspiratory pressure hole of connection vacuum cavitations instrument.
Further, described grid lines includes vertical lines and the annulus lines intersected.
Further, described annulus lines includes the first annulus increased successively from circle die tip end grain direction density on earth
Lines, the second annulus lines and the 3rd annulus lines.
Further, described round mould is made up of carbon steel.
In conjunction with above technical scheme, first, the geotechnical centrifuge model cohesiveless soil dress original mold tool that provides of the present invention uses
Being that carbon steel material is made, the intensity of carbon steel material is big and is not easy deformation；The second, the first semicircle mould and the end of the second semicircle mould
Arranging projection and groove, the mode of this mortise-tenon joint can guarantee that geotechnical centrifuge model cohesiveless soil dress original mold has in use process
In do not deform upon；3rd, being internally provided with fenestral fabric due to circle mould, fenestral fabric contributes to the stream of gas in circle mould
Logical, it is ensured that the pressure that in circle mould, test specimen is subject at diverse location is homogeneous so that the sample prepared is not easy deformation, and sample becomes
Type is simple.
In sum, having the beneficial effects that of the geotechnical centrifuge model cohesiveless soil dress original mold tool that the present invention provides: mould
Being not easy deformation, sample molding simply and is not easy deformation after sample molding.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The front view of the geotechnical centrifuge model cohesiveless soil dress original mold tool that Fig. 1 provides for the present invention；
Fig. 2 is the top view in the A-A direction of Fig. 1；
Fig. 3 is the first semicircle mould and the structural representation of the second semicircle mould；
Fig. 4 is the structural representation of clip；
Fig. 5 is the structural representation of grid lines.
Reference
1-circle mould；2-the first semicircle mould；3-the second semicircle mould；
4-is protruding；5-groove；6-clip；
7-grid lines；8-boss；9-accommodates chamber；
21-internal layer；22-outer layer；41-first is protruding；
42-second is protruding；51-the first groove；52-the second groove；
The vertical lines of 71-；72-annulus lines；211-negative inspiratory pressure hole；
212-gas collection groove；721-the first annulus lines；722-the second annulus lines；
723-the 3rd annulus lines.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described enforcement
Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the invention discloses a kind of geotechnical centrifuge model cohesiveless soil dress original mold tool,
Including circle mould 1 and clip 6.Clip 6 is sleeved on round mould 1 for fastening round mould 1.
As shown in Figure 4, clip 6 is set to the cirque structure being made up of two semicircular ring, one end hinge of two semicircular ring
Connecing, two semicircular ring can rotate around hinge point, and two semicircular ring other ends are connected by connecting shaft spiral and pass through to connect
The screwing or unscrew of axle reaches fastening or the effect unclamped.The top and bottom of circle mould 1 are all set with clip 6.
Further, as a kind of concrete embodiment, the end that one of them semicircular ring is connected with connecting shaft
Offering screw, the end that another semicircular ring is connected with connecting shaft offers negative inspiratory pressure hole 211.
Further, as a kind of concrete embodiment, connecting shaft is provided with screw thread, connecting shaft be provided with
The semicircular ring of screw is spirally connected.
Further, as a kind of concrete embodiment, connecting shaft end is provided with handle, and handle is connected to out
Being provided with in the semicircular ring in negative inspiratory pressure hole 211, connecting shaft is constantly pushed ahead during screwing and locks two semicircular ring.
Further, as a kind of concrete embodiment, the middle part of the handle of connecting shaft offers circular hole, circular hole
Hold for operator's hand.
Further, as a kind of concrete embodiment, clip 6 is stainless steel material.
Further, as a kind of concrete embodiment, connecting shaft is stainless steel material.
Circle mould 1 is provided with receiving chamber 9, accommodates chamber 9 and is used for loading sample, and circle mould 1 includes the first semicircle mould 2 and the second semicircle
Mould, the end of the first semicircle mould 2 and the second semicircle mould abuts against, and the bottom of circle mould 1 is provided with for carrying the convex of the second clip 6
Platform 8.The middle part of the internal layer 21 of the first semicircle mould 2 is provided with the negative inspiratory pressure hole 211 for connecting vacuum cavitations instrument.First semicircle
Mould 2 and the second semicircle mould are provided with internal layer 21 and the outer layer 22 of mutual clamping.
The diameter of boss 8 is more than the diameter of circle mould 1, and clip 6 is overlapped on boss 8.Boss 8 is arranged at bottom round mould 1
Periphery, boss 8 one aspect can be carried the second clip 6, on the other hand can be stablized geotechnical centrifuge model cohesiveless soil dress original mold
Tool, prevents geotechnical centrifuge model cohesiveless soil dress original mold tool from toppling over.
The internal layer 21 of the first semicircle mould 2 and the internal layer 21 of the second semicircle mould abut against, the outer layer 22 of the first semicircle mould 2 and
The outer layer 22 of two semicircle moulds abuts against, the annular that internal layer 21 composition of the first semicircle mould 2 and the second semicircle mould is closed, the first semicircle
The annular that outer layer 22 composition of mould 2 and the second semicircle mould is closed.
Round mould 1 in the geotechnical centrifuge model cohesiveless soil dress original mold tool that the present invention provides arranges outer layer 22 and internal layer 21
Reason is: be applied in combination, and is easy for installation and removal, and processing is simple.
The end of the first semicircle mould 2 is provided with protruding 4, protruding 4 and is arranged on the internal layer 21 of the first semicircle mould 2, and the second half
The end of circle mould is provided with the groove 5 of projection 4 adaptation with the first semicircle mould 2.
Protruding 4 include that the first protruding 41 and second projection 42, the first protruding 41 and second projection 42 are symmetricly set in first
Semicircle mould 2 both ends.First protruding 41 and second projection 42 is arranged on the internal layer 21 of the first semicircle mould 2,
Groove 5 includes that the first groove 51 and the second groove 52, the first groove 51 and the second groove 52 are symmetricly set in second
Semicircle mould both ends.First groove 51 and the second groove 52 are arranged on the internal layer 21 of the second semicircle mould.
It should be understood that first protruding 41 coordinates with the first groove 51, second protruding 42 coordinates with the second groove 52.Circle
Mould 1, in the case of the first protruding 41 and second projection 42 coordinates with the second groove 52 with the first groove 51 respectively, can be avoided
Radial motion between first semicircle mould 2 and the second semicircle mould, it is ensured that good location.
The geotechnical centrifuge model cohesiveless soil dress original mold tool that the present invention provides arranges the beneficial effect of projection 4 and groove 5 and exists
In: the joggle of projection 4 and groove 5 is fixed, it is ensured that geotechnical centrifuge model cohesiveless soil dress original mold tool is accurately positioned, it is to avoid soil
Work triaxial test cohesiveless soil dress original mold tool occurs the situation of the changing of the relative positions and deformation to occur in the course of the work.
It should be understood that in geotechnological three axle samples, the emulsion film a set of of parcel soil sample tries at Three-shaft pressure chamber platform
Testing on base, after installing triaxial test cohesiveless soil dress original mold tool, being turned up by latex film, it is suitable for reading to be placed on mould, loads test soil and presses
After test standard hits real sample preparation, sample cap, triaxial test cohesiveless soil dress original mold tool is disposed to be positioned at sample cap and pressure on top
Between the platform test base of room.Sample cap top is provided with discharge pipe line and control valve, is provided with hole outside pressure chamber base
Water pressure sensor and control valve.When the test specimen having triaxial test cohesiveless soil dress original mold carries out saturated process, first
First open pore water pressure valve, be first passed through carbon dioxide, the air in emptying soil sample, then make air free water from test sample
The bottom of product gradually flows in the sample cap on top, after having soaked, opens the draining pipe valve being positioned at sample cap upper end, makes water
Divide and discharge, saturated sample.It is provided with at the top of test specimen with pure water-moistened filter paper and permeable stone.Sample cap and the examination of three axles
The gap testing soil sample junction is sealed by the contining function of rubber die.Pressure chamber platform test base is with triaxial test soil sample even
The gap meeting place is sealed by the contining function of rubber die.
As it is shown in figure 1, the internal layer 21 of the first semicircle mould 2 is provided with the negative inspiratory pressure for connecting vacuum cavitations instrument at middle part
Hole 211.
It should be understood that during sample preparation, it is necessary to the latex film of parcel soil sample is adsorbed onto triaxial test cohesiveless soil dress
On sample mould inner wall, it is beneficial to contain into test soil and hit real sample preparation, for ensureing that absorption fits tightly, needs to use vacuum cavitations
Instrument, the suction nozzle of vacuum cavitations instrument is arranged on the position in the corresponding negative inspiratory pressure hole 211 of outer layer 22 of the first semicircle mould 2.When to soil
When work triaxial test cohesiveless soil dress original mold tool carries out vacuum pumping, the air in circle mould 1 first passes through this negative inspiratory pressure hole
211, then it is discharged to geotechnical centrifuge model cohesiveless soil dress sample mold exterior by the suction nozzle of vacuum cavitations instrument.
Gas collection groove 212 is horizontally placed on the middle part of geotechnical centrifuge model cohesiveless soil dress original mold tool axial direction.First
Negative inspiratory pressure hole 211 in the middle part of semicircle mould 2 is positioned at the middle part of gas collection groove 212.
The reason arranging gas collection groove 212 is: the negative inspiratory pressure hole 211 in the middle part of the first semicircle mould 2 is geotechnological three axle examinations
Test the gas outlet of cohesiveless soil dress original mold tool, gas collection groove 212 is set near negative inspiratory pressure hole 211 and makes latex film and mould
Between air by grid indenture flow at this concentrate discharge.
As it is shown in figure 5, circle mould 1 inwall is provided with for reducing the grid lines 7 that local decompression is excessive, grid lines 7 wraps
Include crossing vertical lines 71 and annulus lines 72.
Further, as a kind of concrete can embodiment, grid lines 7 is set to latticed indenture.
The main uses of grid lines 7 is: provide the air circulation in geotechnical centrifuge model cohesiveless soil dress original mold tool
Passage.To geotechnical centrifuge model cohesiveless soil dress original mold tool in sample carry out back-pressure process time, geotechnical centrifuge model without
Air in cohesive soil dress original mold tool by the negative inspiratory pressure hole 211 in the middle part of the first semicircle mould 2 be discharged to geotechnical centrifuge model without
Cohesive soil dress sample mold exterior, be now in geotechnical centrifuge model cohesiveless soil dress original mold tool in diverse location atmospheric pressure not
Equalizing, the air near negative inspiratory pressure hole 211 in the middle part of the first semicircle mould 2 can comparatively fast be discharged, and away from the first semicircle mould 2
The air of the position in the negative inspiratory pressure hole 211 in portion is difficult to discharge owing to lacking the circulation passage of necessity, is provided with grid lines 7
After, gas can be discharged to geotechnical centrifuge model cohesiveless soil dress original mold tool in the circulation passage that grid lines 7 provides smoothly
Outside, makes the test specimen uniform force prepared keep stable and be unlikely to deform.
Annulus lines 72 includes the first annulus lines 721, second increased successively from circle die tip end grain direction density on earth
Annulus lines 722 and the 3rd annulus lines 72.
The reason arranging first annulus lines the 721, second annulus lines 722 and the 3rd annulus lines 72 is: Tu Gongsan
Shaft experiment cohesiveless soil dress original mold tool bottom air is more than the air on top, is positioned at geotechnical centrifuge model cohesiveless soil dress original mold tool
The gas of bottom is difficult to discharge, so that the air arranging the most intensive fluid passage minor bottom is discharged, relatively reasonable
Set-up mode be: from circle die tip to bottom, the first annulus lines the 721, second annulus lines 722 and the 3rd annulus lines 72
Density increase successively.
The reason arranging vertical lines is: annulus lines 72 is axial geotechnical centrifuge model cohesiveless soil dress original mold tool
Arrange on direction, do not have channel connection between annulus lines, vertical lines 71 is set and can connect annulus lines 72.Geotechnique three
Shaft experiment cohesiveless soil dress original mold tool can realize geotechnical centrifuge model under the common effect of annulus lines 72 and vertical lines 71
The quick circulation of gas in cohesiveless soil dress original mold tool.
Further, as a kind of concrete embodiment, circle mould 1 is made up of carbon steel.
Circle mould 1 is by having the beneficial effects that carbon steel is made: traditional glass circle mould 1 fills at geotechnical centrifuge model cohesiveless soil
It is susceptible to deformation under the effect of the inside and outside pressure difference of original mold tool, and intensity is low.Carbon steel has high intensity, high tenacity and anticorrosive
And good characteristics, thus be adapted to three axle sample dress original molds and have the situation worked under various different pressures.
The operating process of the triaxial test that the geotechnical centrifuge model cohesiveless soil dress original mold using the present invention to provide has is as follows:
1, making the stand-by sand material mixture of 500g, the sand material mixture of 1/4th of taking-up sample gross mass is respectively put into four
Be uniformly mixed into the sand material of 15% water content in individual crucible with 75g water, water is uniformly instilled crucible by rubber pipette bulb, then thin with plastics
Film encapsulates, it is ensured that sample moisture content is constant.
2, preparation is for the rubber membrane sealed, and rubber membrane is set to circle shape, and the length of rubber membrane axial direction is left
10mm, it is ensured that rubber membrane flush edge, without sawtooth, without tilt.And cutting width is the elastic tape of 5mm, then carry out rubber membrane
Leak test, after rubber membrane side elastic tape is tightened, filled water wherein, opposite side is tightened with elastic tape too, double
Hands extrudes whether each orientation detection of rubber membrane leaks successively, takes off rubber band and release water wiped clean after inspection.
3, the lateral edges of pressure chamber platform test base is uniformly coated with one layer of vaseline and prevents rubber membrane from leaking gas, and then will use
Permeable stone and filter paper that distilled water moistened are successively placed on pressure chamber platform test base, the rubber being then already prepared to
Rubber membrane, in pressure chamber base, is then enclosed within pressure chamber platform experiment base by Membrane cover with elastic tape.Through vaseline and
The contining function of elastic tape can fully ensure that rubber membrane is air tight with the contact surface of specimen mount.
4, geotechnical centrifuge model cohesiveless soil dress original mold tool is fixed on pressure chamber platform test base, then mould
Rubber membrane tension above counter is enclosed within mould, and the rubber membrane making mould inside is smooth, then with inhale ball by mould and rubber membrane it
Between air sucking-off, make the two fit tightly.
5, slowly mould is put into equably, on sample top after being mixed thoroughly with spoon respectively by off-the-shelf four aliquot sand material
End is put successively with pure water-moistened filter paper and permeable stone, then surrounding scribbles the sample cap of vaseline at sand material samples
On, open pore water pressure valve and buret valve, make water flow into bottom sample lentamente, get rid of the gas between sample and rubber membrane
Bubble, closes pore water pressure valve and buret valve.Open drain valve, make water-filling in sample cap, then by the anti-rubber being enclosed within mould
Film is wrapped up, and is finally tightened with elastic tape.After sample completes, make sample be internally formed negative pressure with back-pressure controller, protect
Can stand after card sample form removal, the most split mould be removed, the whether Pass Test of height and the diameter of detection sample
Requirement.
Having the beneficial effects that of the geotechnical centrifuge model cohesiveless soil dress original mold tool that the present invention provides:
The first, the geotechnical centrifuge model cohesiveless soil dress original mold tool provided due to the present invention uses carbon steel material system
Becoming, the intensity of carbon steel material is big and is not easy deformation, thus triaxial test dress original mold tool is not easy deformation.
The second, the geotechnical centrifuge model cohesiveless soil dress original mold provided due to the present invention has at the first semicircle mould 2 and second
The end of semicircle mould arranges projection and groove, and the mode of this mortise-tenon joint can guarantee that geotechnical centrifuge model cohesiveless soil fills original mold
Tool does not deforms upon so that the sample prepared is not easy deformation.
3rd, the geotechnical centrifuge model cohesiveless soil dress original mold tool provided due to the present invention is internally provided with grid at circle mould
Shape structure, fenestral fabric contributes to the circulation of gas in circle mould 1, it is ensured that the test specimen in circle mould 1 is subject at diverse location
Pressure homogeneous, prepare sample be not easy deformation, sample molding is simple.
To sum up, having the beneficial effects that of the geotechnical centrifuge model cohesiveless soil dress original mold tool that the present invention provides: mould is not allowed
Yielding, sample molding simply and is not easy deformation after sample molding.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or to the most some or all of.
Claims (10)
1. a geotechnical centrifuge model cohesiveless soil dress original mold tool, it is characterised in that include circle mould (1) and clip (6), described circle
Mould (1) is provided with receiving chamber (9), and described round mould (1) inwall is provided with for reducing the grid lines (7) that local decompression is excessive,
Described round mould (1) includes that the first semicircle mould (2) and the second semicircle mould (3), the end of described first semicircle mould (2) are provided with projection
(4), the end of described second semicircle mould (3) is provided with the groove (5) that the projection (4) with described first semicircle mould (2) is adaptive, institute
The end stating the first semicircle mould (2) and described second semicircle mould (3) abuts against, and described clip (6) is sleeved on described round mould (1) outward
For fastening described first semicircle mould (2) and described second semicircle mould (3).
Geotechnical centrifuge model cohesiveless soil the most according to claim 1 dress original mold tool, it is characterised in that described projection (4)
It is symmetricly set in institute including first protruding (41) and second protruding (42), described first protruding (41) and described second protruding (42)
State the first semicircle mould (2) both ends.
Geotechnical centrifuge model cohesiveless soil the most according to claim 2 dress original mold tool, it is characterised in that described groove (5)
Including the first groove (51) and the second groove (52), described first groove (51) and described second groove (52) are symmetricly set in institute
State the second semicircle mould (3) both ends.
Geotechnical centrifuge model cohesiveless soil the most according to claim 3 dress original mold tool, it is characterised in that described first semicircle
Mould (2) and described second semicircle mould (3) are provided with internal layer (21) and outer layer (22), described first protruding (41) and described second
Protruding (42) are arranged on the internal layer (21) of described first semicircle mould (2), described first groove (51) and described second groove
(52) it is arranged on the internal layer (21) of described second semicircle mould (3).
Geotechnical centrifuge model cohesiveless soil the most according to claim 1 dress original mold tool, it is characterised in that described round mould (1)
Top and bottom be all set with clip (6).
Geotechnical centrifuge model cohesiveless soil the most according to claim 1 dress original mold tool, it is characterised in that described round mould (1)
Bottom be provided with the boss for carrying described clip (6).
Geotechnical centrifuge model cohesiveless soil the most according to claim 1 dress original mold tool, it is characterised in that described first semicircle
The middle part of the internal layer (21) of mould (2) is provided with gas collection groove (212), and described gas collection groove (212) middle part is provided with connection negative pressure
The negative inspiratory pressure hole (211) of controller.
Geotechnical centrifuge model cohesiveless soil the most according to claim 1 dress original mold tool, it is characterised in that described grid lines
(7) vertical lines (71) and the annulus lines (72) intersected is included.
Geotechnical centrifuge model cohesiveless soil the most according to claim 8 dress original mold tool, it is characterised in that described annulus lines
(72) include from justifying the first annulus lines (721), the second annulus lines (722) that die tip end grain direction density on earth increases successively
With the 3rd annulus lines (723).
Geotechnical centrifuge model cohesiveless soil the most according to claim 9 dress original mold tool, it is characterised in that described round mould (1)
It is made up of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368860.XA CN105865877A (en) | 2016-05-30 | 2016-05-30 | Non-cohesive soil sample filling mold of geotechnical triaxial test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610368860.XA CN105865877A (en) | 2016-05-30 | 2016-05-30 | Non-cohesive soil sample filling mold of geotechnical triaxial test |
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| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN107966336A (en) * | 2017-11-06 | 2018-04-27 | 华侨大学 | A kind of grouting and reinforcing soil body pressure-bearing test mould and its test method |
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| CN107966336B (en) * | 2017-11-06 | 2023-10-20 | 华侨大学 | Grouting reinforcement soil body bearing test mold and test method thereof |
| CN107917836A (en) * | 2017-12-08 | 2018-04-17 | 河南理工大学 | The preparation facilities of filler experiment of machanics standard specimen and the method that standard specimen is made using the device |
| CN109187138A (en) * | 2018-10-12 | 2019-01-11 | 天津城建大学 | A kind of portable true triaxil tester soil saturation device and detection method |
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| CN111650026A (en) * | 2020-05-06 | 2020-09-11 | 温州大学 | Nondestructive preservation process for granular soil sample |
| CN111707526A (en) * | 2020-07-22 | 2020-09-25 | 浙江理工大学 | Sample preparation mold and sample preparation method for domestic garbage soil triaxial test |
| CN111707526B (en) * | 2020-07-22 | 2023-11-03 | 浙江理工大学 | Sample preparation mold and sample preparation method for triaxial test of household garbage soil |
| CN114906442A (en) * | 2022-05-17 | 2022-08-16 | 中铁上海设计院集团有限公司 | Confining pressure type soil sampling box based on screw thread precession |
| CN114906442B (en) * | 2022-05-17 | 2023-10-27 | 中铁上海设计院集团有限公司 | Confining pressure type soil sampling box based on screw thread precession |
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