CN205426613U - Indoor hollow cylinder remolds clay sample compression preparation facilities - Google Patents
Indoor hollow cylinder remolds clay sample compression preparation facilities Download PDFInfo
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- CN205426613U CN205426613U CN201620218664.XU CN201620218664U CN205426613U CN 205426613 U CN205426613 U CN 205426613U CN 201620218664 U CN201620218664 U CN 201620218664U CN 205426613 U CN205426613 U CN 205426613U
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- hollow cylinder
- cylinder
- draining board
- consolidation
- preparation facilities
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Abstract
The utility model discloses an indoor hollow cylinder remolds clay sample compression preparation facilities. On an outer consolidation section of thick bamboo, interior consolidation section of thick bamboo nestification were fixed in the drainage base, both centre grippings formed a round annulus that is used for placing clay hollow cylinder sample, be equipped with annular drain bar and the lower drain bar gone up of circle on two upper and lower cross sections of circle annulus respectively, all be equipped with a plurality of through -hole on the drainage base of circle annulus bottom and on the section of thick bamboo wall of an interior consolidation section of thick bamboo, the impetus of pressure load structure be located the drain bar for apply decurrent pressure to last drain bar. The utility model provides a hollow cylinder remolds the device of clay compression system appearance, and can once only directly complete is used for experimental anisotropic consolidation hollow cylinder to remold the clay, need not the secondary system appearance of sample, can reduce the disturbance and the waste of sample, and easy operation is convenient, improves hollow cylinder and remolds clay preparation efficiency. Simultaneously, adopt weight pressurization mode, need not consumption of electric energy.
Description
Technical field
This utility model belongs to assay device field, is specifically related to a kind of indoor hollow cylinder reshaped clay sample compression preparation facilities method.
Background technology
Hollow cylinder torsional shear instrument can apply independent axle power, moment of torsion and the inside and outside pressure controlled to hollow cylinder sample, such that it is able to realize complicated stress environment common in the Practical Projects such as big Rotation of principal stress direction, has obtained wide application in soil test.The method preparing main employing vacuum consolidation precompressed of hollow cylinder reshaped clay sample is prepared as bigger box-shaped (such as the utility model of Patent No. 200920106559.7) or cylindrical reshaped clay block (such as the utility model of Patent No. 201020558288.1) cuts into hollow cylinder sample again or direct vacuum preloading becomes hollow cylinder (such as the patent of invention of Patent No. 201410099598.4) at present.Relatively being difficult to ensure card for bigger reshaped clay block due to the poor permeability of clay, the drainage path of mud, the remoulded sample uniformity of preparation is relatively difficult to ensure card.Vacuum pressure is limited by vacuum pump power, and the preload pressure value scope that can apply is less, and vacuum, sealing are the most relatively difficult to ensure card, and the remoulded sample moisture content of preparation is higher, and intensity is relatively low, affects later stage test and uses.Sample prepared by vacuum preloading is for waiting to consolidation sample and soil body K in Practical Project0The stress of anisotropic consolidation is different.And it is generally required to simulate soil body stress in Practical Project more realistically in soil test, urgent need is a kind of at present can compress the device preparing anisotropic consolidation clay sample.
Summary of the invention
The purpose of this utility model is to solve problem present in existing hollow cylinder reshaped clay sample technology of preparing, and provides a kind of indoor hollow cylinder reshaped clay sample compression preparation facilities.
For achieving the above object, the concrete technical scheme that this utility model is used is as follows:
Indoor hollow cylinder reshaped clay sample compression preparation facilities, including outer consolidation cylinder, interior consolidation cylinder, water-drainage base seat, upper draining board, lower draining board and pressure-loaded structure；Described outer consolidation cylinder, interior consolidation cylinder nesting are fixed on water-drainage base seat, and both clamp formation one for placing the annular space of clay hollow cylinder sample；It is respectively equipped with circular upper draining board and lower draining board on upper and lower two cross sections of annular space；It is equipped with several through holes on water-drainage base seat bottom annular space and on the barrel of interior consolidation cylinder；The impetus of described pressure-loaded structure is positioned on draining board, for upper draining board is applied downward pressure.
The ultimate principle of said apparatus be clay slurry is poured into outer consolidation cylinder, interior consolidation collet chuck is held in the annular space of formation, and by pressure-loaded structure, serosity is pressed, moisture therein is made to be discharged by the through hole on base and on interior consolidation cylinder barrel, it is achieved the preparation of clay sample.
As preferably, described pressure-loaded structure is formed with loading counterweight by loading support, and loading support bottom is some the support bars being connected with upper draining board, and top is for placing the platform loading counterweight.The pressure slurry discharging consolidation that this device uses the form applying counterweight load to be opposite between two-layer cylinder is directly prepared as K0The hollow cylinder reshaped clay sample of anisotropic consolidation, it is not necessary to evacuation, therefore need not consume electric energy.
As preferably, described water-drainage base seat is provided with a circular fixed card slot, and fixed card slot is provided with the through hole inside and outside several annular spaces described in connection, for discharging the water in annular space；The annulus external diameter of fixed card slot is consistent with the internal diameter of outer consolidation cylinder, and the internal diameter of fixed card slot is consistent with the external diameter of interior consolidation cylinder, and outer consolidation cylinder, interior consolidation cylinder are detachably secured on fixed card slot by screw thread.Detachable design makes each parts can directly dismantle after use completes, it is simple to the taking-up of sample and the cleaning of device.
Further, described fixed card slot upper surface is provided with several screws, for fixing lower draining board.
As preferably, described outer consolidation cylinder has wrapped around some outer wall reinforcing fibres, to strengthen outer wall intensity.
As preferably, the described water-drainage base seat bottom interior consolidation cylinder is provided with through hole.This through hole can make outside the smooth bleeder of muddy water of discharge, it is not necessary to aspirates.
As preferably, the described through hole on water-drainage base seat all by pipe influx to main sewer, and main sewer is provided with valve.Muddy water can be carried out unifying to collect and discharge by main sewer, keeps test site clean and tidy.
As preferably, described interior consolidation tube outer surface and upper draining board lower surface and lower draining board upper surface are all covered with filter paper, are used for separating mud mixture.
As preferably, the pressure that described upper draining board and loading support produce on clay hollow cylinder sample cross section is 10kPa.
This utility model provides the devices and methods therefor of a kind of hollow cylinder reshaped clay compression sample preparation, can the most directly complete for the standard hollow cylinder reshaped clay of test.And this device is without the secondary sample preparation of sample, disturbance and the waste of sample can be reduced, improve hollow cylinder reshaped clay make efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of a kind of hollow cylinder reshaped clay compression sample preparation；
Fig. 2 is water-drainage base seat top view of the present utility model.
In figure, reference is: 1, outer consolidation cylinder；2, interior consolidation cylinder；3, water-drainage base seat；4, support is loaded；5, upper draining board；6, lower draining board；7, outer wall reinforcing fibre；8 load counterweight；9, main sewer；10, sample bottom drain holes；11, lower draining board fixed bolt hole；12, base central row water hole.
Detailed description of the invention
With embodiment this utility model it is further elaborated below in conjunction with the accompanying drawings and illustrates.In this utility model, the technical characteristic of each embodiment is not on the premise of colliding with each other, and all can carry out respective combination.
As it is shown in figure 1, a kind of indoor hollow cylinder reshaped clay sample compression preparation facilities.The agent structure of device includes outer consolidation cylinder 1, interior consolidation cylinder 2, water-drainage base seat 3, upper draining board 5, lower draining board 6 and pressure-loaded structure.Pressure-loaded structure can take various forms, as long as the impetus of its pressure is positioned on draining board 5, upper draining board 5 can be applied downward pressure.In present embodiment, pressure-loaded structure is formed with loading counterweight 8 by loading support 4, and loading support 4 bottom is some and support bar, and top is a platform.During use, platform is placed and loads counterweight 8, and support bar vertical rack is located on draining board 5.
Water-drainage base seat 3 uses rustless steel to make, thick 5cm.Outer consolidation cylinder 1, interior consolidation cylinder 2 nesting are fixed on water-drainage base seat 3, and both clamp formation one for placing the annular space of clay hollow cylinder sample.For the ease of dismounting and cleaning, outer consolidation cylinder 1, interior consolidation cylinder 2 are both designed as detachable fixing by present embodiment.Specific practice is: fix on water-drainage base seat 3 horizontal cross-section be circular, longitudinal cross-section be the fixed card slot of rectangle, fixed card slot is provided with the sample bottom drain holes 10 inside several annular spaces described in connection and outside whole device, aperture 5mm, for discharging the water in annular space.The annulus external diameter of fixed card slot is consistent with the internal diameter of outer consolidation cylinder 1, the internal diameter of fixed card slot is consistent with the external diameter of interior consolidation cylinder 2, the inside and outside wall of the inner wall lower of outer consolidation cylinder 1, the outer wall bottom of interior consolidation cylinder 2 and fixed card slot is equipped with the screw thread being mutually matched, and three is detachable fixing by screw thread.Fixed card slot upper surface is provided with several lower draining board fixed bolt holes 11, and draining board 6 is screwed on fixed card slot.
It is respectively equipped with circular upper draining board 5 and lower draining board 6 on the top of annular space and two, bottom cross section；Upper draining board 5 and lower draining board 6 can cover the cross section of annular space substantially, place the mud for molding between the two.The most uniformly offering some exhausting holes on water-drainage base seat 3 bottom annular space and on the barrel of interior consolidation cylinder 2, through hole should need drainage position being covered with as far as possible.
In order to strengthen intensity further, outer consolidation cylinder 1 has wrapped around some outer wall reinforcing fibres 7.
In use, the water in mud can be outflowed said apparatus by through hole everywhere, and a portion can be gathered in the inner space of interior consolidation cylinder 2, it is therefore desirable to arranges base central row water hole 12, aperture 1mm on the water-drainage base seat 3 bottom interior consolidation cylinder 2.For the ease of the collection of these water, the through hole on water-drainage base seat 3 all by pipe influx to main sewer 9, and main sewer 9 is provided with valve.
During it addition, mud mixture is squeezed, has part and overflow, it is therefore desirable to be all covered with filter paper at interior consolidation cylinder 2 outer surface and lower draining board 6 upper surface, be used for separating mud mixture.
A kind of indoor hollow cylinder reshaped clay sample compression method for making sample based on said apparatus, its major technique step is as follows:
1, first soil sample is dried, pulverize, sieve, dry, weigh dry ground by design moisture content, stir, after measuring air free water mixing, the mud being prepared as, stand 24 hours.
2, first lower draining board 6 is fixed on water-drainage base seat 3, described lower draining board 6 puts one layer of annular filter paper, then outer wall is posted the interior consolidation cylinder 2 of filter paper layer and inwall scribbles the outer consolidation cylinder 1 of vaseline and is threadably secured respectively on water-drainage base seat 3.
3) moisture content of sample, is prepared needed for basis, and by determining the height of mud more than the required specimen height of test, mud after standing opens injection by funnel bottom annular space, and mud the most gradually fills to predetermined altitude, and records mud present level；
4, put into annular filter paper at mud top, then the loading support 4 connecting upper draining board 5 is placed in mud top, increase counterweight step by step according to design consolidation pressure, apply precompression, and observe sample stiffness variation.The initial pressure that upper draining board 5 and loading support 4 produce on clay hollow cylinder sample cross section is preferably 10kPa, utilizes this pressure of counterweight scalable.
5, when under specimen height is in design pressure height when 24 is little interior change less than 0.1mm time think prepared by sample.
6, progressively removal counterweight 8, loads support, outer consolidation cylinder 1, interior consolidation cylinder 2, finally takes off sample, complete preparation process.
7, by the specimen height excision sample top redundance needed for test.
Said apparatus and method use gravity pressuring method to prepare hollow cylinder reshaped clay sample, it is not necessary to use other power set, it is not necessary to consume other energy.
During the hollow cylinder reshaped clay sample prepared based on said apparatus and method, sample is not produced horizontal direction consolidation deformation by the constraint of inside and outside consolidation cylinder, vertical deformation only occurs, and sample is vertically also differing with horizontal direction stress, i.e. sample is K0Concretion state.Therefore comparing employing evacuation preloading method preparation method, the stress of sample more meets the stress of the soil body in actual environment.
Embodiment described above is one of the present utility model preferably scheme, so itself and be not used to limit this utility model, the technical scheme that all modes taking equivalent or equivalent transformation are obtained, all fall within protection domain of the present utility model.
Claims (9)
1. an indoor hollow cylinder reshaped clay sample compression preparation facilities, it is characterised in that include outer consolidation cylinder (1), interior consolidation cylinder (2), water-drainage base seat (3), upper draining board (5), lower draining board (6) and pressure-loaded structure；Described outer consolidation cylinder (1), interior consolidation cylinder (2) nesting are fixed on water-drainage base seat (3), and both clamp formation one for placing the annular space of clay hollow cylinder sample；It is respectively equipped with circular upper draining board (5) and lower draining board (6) on two cross sections up and down of annular space；Water-drainage base seat (3) bottom annular space above and is equipped with several through holes on the barrel of interior consolidation cylinder (2)；The impetus of described pressure-loaded structure is positioned on draining board (5), for upper draining board (5) is applied downward pressure.
2. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterized in that described pressure-loaded structure by load support (4) and load counterweight (8) form, loading support (4) bottom is some the support bars being connected with upper draining board (5), and top is to be used for placing the platform loading counterweight (8).
3. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterized in that described water-drainage base seat (3) is provided with a circular fixed card slot, fixed card slot is provided with the through hole inside and outside several annular spaces described in connection, for discharging the water in annular space；The annulus external diameter of fixed card slot is consistent with the internal diameter of outer consolidation cylinder (1), the internal diameter of fixed card slot is consistent with the external diameter of interior consolidation cylinder (2), and outer consolidation cylinder (1), interior consolidation cylinder (2) are detachably secured on fixed card slot by screw thread.
4. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 3, it is characterised in that described fixed card slot upper surface is provided with several screws, for fixing lower draining board (6).
5. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterised in that described outer consolidation cylinder (1) has wrapped around some outer wall reinforcing fibres (7).
6. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterised in that the water-drainage base seat (3) of described interior consolidation cylinder (2) bottom is provided with through hole.
7. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterized in that the through hole on described water-drainage base seat (3) all by pipe influx to main sewer (9), and main sewer (9) is provided with valve.
8. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 1, it is characterized in that described interior consolidation cylinder (2) outer surface, upper draining board (5) lower surface and lower draining board (6) upper surface is all covered with filter paper, be used for separating mud mixture.
9. indoor hollow cylinder reshaped clay sample compression preparation facilities as claimed in claim 2, it is characterised in that the pressure that described upper draining board (5) and loading support (4) produce on clay hollow cylinder sample cross section is 10kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218664.XU CN205426613U (en) | 2016-03-21 | 2016-03-21 | Indoor hollow cylinder remolds clay sample compression preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620218664.XU CN205426613U (en) | 2016-03-21 | 2016-03-21 | Indoor hollow cylinder remolds clay sample compression preparation facilities |
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| CN205426613U true CN205426613U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620218664.XU Withdrawn - After Issue CN205426613U (en) | 2016-03-21 | 2016-03-21 | Indoor hollow cylinder remolds clay sample compression preparation facilities |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784444A (en) * | 2016-03-21 | 2016-07-20 | 浙江大学 | Indoor apparatus and method for producing hollow cylindrical remolded clay specimen by compressing |
| CN106918485A (en) * | 2017-04-06 | 2017-07-04 | 中国矿业大学 | A kind of specified moisture content hollow cylinder bentonite sample preparation device and method |
| CN109211692A (en) * | 2018-10-11 | 2019-01-15 | 吉林大学 | A kind of production of hollow cylinder torsional shear sample and saturation integrated device and its application method |
-
2016
- 2016-03-21 CN CN201620218664.XU patent/CN205426613U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784444A (en) * | 2016-03-21 | 2016-07-20 | 浙江大学 | Indoor apparatus and method for producing hollow cylindrical remolded clay specimen by compressing |
| CN105784444B (en) * | 2016-03-21 | 2018-06-19 | 浙江大学 | Indoor hollow cylinder reshaped clay sample compression preparation facilities and its method |
| CN106918485A (en) * | 2017-04-06 | 2017-07-04 | 中国矿业大学 | A kind of specified moisture content hollow cylinder bentonite sample preparation device and method |
| CN109211692A (en) * | 2018-10-11 | 2019-01-15 | 吉林大学 | A kind of production of hollow cylinder torsional shear sample and saturation integrated device and its application method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20180619 |
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| AV01 | Patent right actively abandoned |