CN203479609U - Floating ring type consolidation container for consolidation test - Google Patents
Floating ring type consolidation container for consolidation test Download PDFInfo
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- CN203479609U CN203479609U CN201320604467.8U CN201320604467U CN203479609U CN 203479609 U CN203479609 U CN 203479609U CN 201320604467 U CN201320604467 U CN 201320604467U CN 203479609 U CN203479609 U CN 203479609U
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- ring
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Abstract
The utility model discloses a floating ring type consolidation container for a consolidation test. The lower portion of a protection ring (2) of the floating ring type consolidation container protrudes inwards to form an annular inner boss (2a). The diameter of a lower water permeating board (4) is equal to or slightly smaller than the inner diameter of the inner boss (2a), and the protection ring (2) is arranged on the inner bottom face of a water groove (1) to cover the lower water permeating board (4). The inner diameter of the inner boss (2a) is equal to or slightly smaller than that of a ring cuter (7), and the height of the inner boss (2a) is smaller than that of the lower water permeating board (4). The height of the protection ring (2) is larger than the sum of the height of the lower water permeating board (4) and the height of a cutting edge (7a) of the ring cutter (7) and smaller than the value which is obtained by subtracting the height of a guide ring groove (3a) from the sum of the height of the lower water permeating board (4) and the height of the ring cutter (7). The floating ring type consolidation container is easy to operate, high in sample installation success rate, small in test error and accurate and reliable in test result.
Description
Technical field
The utility model relates to a kind of floating ring formula consolidation container for consolidation test, belongs to soil test technique field.
Background technology
Consolidation test is the test of the conventional acquisition Geotechnical Engineering Soil Parameters of a class, such test is by measuring the sample compression deformation under certain pressure effect within a certain period of time, and then calculate the various types of compact index of the soil body and coefficient of consolidation etc., to calculating parameter and evaluation index are provided for engineering design, the design of the earth structures such as ground and roadbed and construction are had to important practical value.
Consolidation container is the chief component of consolidometer for consolidation test, for placing the sample that consolidation test is used, and pressure is delivered to sample from the increased pressure frame of consolidometer, simultaneously for sample provides saturated (being directed to saturated soil) or the test water environment of unsaturation (being directed to unsaturated soil) under complete side limit condition.Existing consolidation container has two kinds of fixed and floating ring formulas.
Fig. 1 is the sectional structure schematic diagram of existing fixed consolidation container.Fig. 1 illustrates, its composition is: tank (1), tank (1) the inner bottom surface lower porous disc (4 ') of placing placed in the middle, on lower porous disc (4 '), be placed with sample (8), sample (8) peripheral part closely cover has cutting ring (7), cutting ring (7) outer cover has retaining ring (2 '), sample (8) upper surface is placed with porous disc (5), upper porous disc (5) peripheral part cover has lead ring (3), on upper porous disc (5), be placed with pressurization upper cover (6), lead ring (3) lower internal edge has lead ring groove (3a), and lead ring groove (3a) coordinates with cutting ring (7) top.The diameter of its lower porous disc is greater than cutting ring internal diameter, is also greater than the internal diameter of retaining ring simultaneously, and retaining ring and cutting ring are all placed on lower porous disc, and cutting ring and lower porous disc can not vertically relatively move.In process of the test, the increased pressure frame of consolidometer is exerted pressure to the sample in cutting ring by pressurization upper cover, upper porous disc, make sample pressurized, because cutting ring and lower porous disc can not occur vertically to relatively move, therefore with respect to cutting ring, sample produces Uniaxial Compression distortion from top to bottom, with respect to the compression displacement of cutting ring, all occurs in same direction.Ring wall friction force between cutting ring sidewall and sample is disturbed large to sample compression deformation, test findings error is large, and sample deformation data are less than normal, relatively dangerous while being applied to engineering design.
For floating ring formula container, its structure is slightly different: its upper and lower porous disc diameter is identical, all be less than the internal diameter of cutting ring, during test, sample centering need be placed on lower porous disc directly over, to guarantee that lower porous disc can not touch cutting ring lower limb, cutting ring and upper and lower porous disc all can occur vertically to relatively move.In process of the test, the increased pressure frame of consolidometer is exerted pressure to the sample in cutting ring by pressurization upper cover, upper porous disc, make sample pressurized, because cutting ring and upper and lower porous disc all can occur vertically to relatively move, therefore with respect to cutting ring, sample had both produced compression deformation from top to bottom, also produce compression deformation from bottom to top, compression displacement with respect to cutting ring occurs on both direction substantially equably, ring wall friction force between cutting ring sidewall and sample is disturbed little to sample compression deformation, test findings error is little, and test figure is more true and reliable.
The problem that floating ring formula container exists is: lower porous disc is placed on bottom of gullet in advance, sample removes porous disc under centering together with cutting ring and retaining ring, because tank operating space is little, and the external diameter of retaining ring is greater than lower porous disc, can only be by rule of thumb when centering with feel to carry out centering; After sample is put, the retaining ring on top shelters from lower porous disc completely, and naked eyes cannot be observed the relative position of the two completely, thereby cannot determine whether centering of cutting ring and lower porous disc, very easily centering failure.Centering failure, make cutting ring sidewall have to be positioned at the position directly over lower porous disc, and cause the other end of lower porous disc and cutting ring inwall to have larger space, stressed and distortion to sample can produce a very large impact, cannot realize the function of floating ring formula container bi-directional compression sample, thereby cause test failure, need again change sample, again centering.Therefore, use existing floating ring formula container to test, cutting ring centering operation is trouble and difficulty very, and it is low that sample is mounted to power, and sample waste is large.
Utility model content
The purpose of this utility model is to provide a kind of floating ring formula consolidation container for consolidation test, and this kind of floating ring formula consolidation container is simple to operate, and sample is mounted to that power is high, and test error is little, test findings accurately, reliable.
The technical scheme in the invention for solving the technical problem is, a kind of floating ring formula consolidation container for consolidation test, comprise tank, the tank inner bottom surface lower porous disc of placing placed in the middle, on lower porous disc, be placed with sample, sample peripheral part closely cover has cutting ring, cutting ring outer cover has retaining ring, sample upper surface is placed with porous disc, and upper porous disc peripheral part cover has lead ring, is placed with pressurization upper cover on upper porous disc, lead ring lower internal edge has lead ring groove, and this lead ring groove coordinates with cutting ring top; It is characterized in that:
The bottom inwardly protruding of described retaining ring, forms circular inner convex platform; The diameter of described lower porous disc is equal to or slightly less than the internal diameter of inner convex platform, and retaining ring is placed in the tank inner bottom surface cover porous disc of staying; The internal diameter of described inner convex platform is equal to or slightly less than the internal diameter of cutting ring, and its height is lower than the height of lower porous disc; The height of described retaining ring is greater than the cutting edge height sum of height and the cutting ring of lower porous disc, be less than the height of lower porous disc and cutting ring height and deduct the height of lead ring groove again.
Using method of the present utility model is:
When sample is installed, in tank, first place retaining ring, more lower porous disc is placed in to the inner convex platform of retaining ring, then in retaining ring, place successively slim filter paper, with the cutting ring (cutting ring down-bite jaw) of sample, then the lead ring groove of lead ring is placed on to cutting ring top; Above sample, place again slim filter paper, then upper porous disc is placed in lead ring, finally pressurization upper cover is placed on upper porous disc, complete the installation of sample.Then consolidation container is placed in to the center of consolidometer increased pressure frame, dial gauge or displacement transducer are installed, the pressure that applies setting to pressurization upper cover by increased pressure frame can be tested.So far, according to < < Standard for test methods of earthworks > > (GB/T50123-1999), proceed other operation of consolidation test.
Compared with prior art, the beneficial effects of the utility model are:
Because the diameter of lower porous disc is equal to or slightly less than the internal diameter of inner convex platform, the internal diameter of cutting ring equals again or is slightly larger than the internal diameter of inner convex platform, it is hereby ensured that the diameter of lower porous disc is equal to or slightly less than cutting ring internal diameter.The utility model is by retaining ring being placed in to the inner bottom surface of tank, more lower porous disc is placed in the inner convex platform of retaining ring, thereby makes lower porous disc automatic centering retaining ring in scale error allowed band; Then by cutting ring and sample inner sleeve (clearance fit) among retaining ring, realized again the automatic centering of cutting ring and sample and retaining ring.Thereby by retaining ring, having realized the automatic centering that diameter is equal to or slightly less than lower porous disc and cutting ring and the sample of cutting ring internal diameter, can there is vertical relative displacement in cutting ring and lower porous disc.Visible, the utility model is by means of being placed in the retaining ring of specific dimensions of tank bottom surface and the automatic centering that inner convex platform has been realized cutting ring and lower porous disc thereof, the fitting operation of sample is simple and convenient, it is high that sample is mounted to power, can guarantee to realize the functional requirement of floating ring formula container, test error is little, and test findings accurately, reliably.Avoided sample waste simultaneously.
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of existing fixed consolidation container.
Fig. 2 is the sectional structure schematic diagram after the utility model embodiment assembling.
Embodiment
Embodiment
Fig. 2 illustrates, a kind of embodiment of the present utility model is, a kind of floating ring formula consolidation container for consolidation test, comprise tank 1, the tank 1 inner bottom surface lower porous disc 4 of placing placed in the middle, on lower porous disc 4, be placed with sample 8, sample 8 peripheral parts closely cover have cutting ring 7, cutting ring 7 outer cover have retaining ring 2, sample 8 upper surfaces are placed with porous disc 5, upper porous disc 5 peripheral part covers have lead ring 3, on upper porous disc 5, be placed with pressurization upper cover 6, lead ring 3 lower internal edge have lead ring groove 3a, and this lead ring groove 3a coordinates with cutting ring 7 tops.
The bottom inwardly protruding of described retaining ring 2, forms circular inner convex platform 2a; The diameter of described lower porous disc 4 is equal to or slightly less than the internal diameter of inner convex platform 2a, and retaining ring 2 is placed in the tank 1 inner bottom surface cover porous disc 4 of staying; The internal diameter of described inner convex platform 2a is equal to or slightly less than the internal diameter of cutting ring 7, and its height is lower than the height of lower porous disc 4; The height of described retaining ring 2 is greater than the height of lower porous disc 4 and the cutting edge 7a of cutting ring 7 height sum, the height that is less than lower porous disc 4 and cutting ring 7 height with deduct again the height of lead ring groove 3a.
Claims (1)
1. the floating ring formula consolidation container for consolidation test, comprise tank (1), tank (1) the inner bottom surface lower porous disc (4) of placing placed in the middle, on lower porous disc (4), be placed with sample (8), sample (8) peripheral part closely cover has cutting ring (7), cutting ring (7) outer cover has retaining ring (2), sample (8) upper surface is placed with porous disc (5), upper porous disc (5) peripheral part cover has lead ring (3), on upper porous disc (5), be placed with pressurization upper cover (6), lead ring (3) lower internal edge has lead ring groove (3a), this lead ring groove (3a) coordinates with cutting ring (7) top, it is characterized in that:
The bottom inwardly protruding of described retaining ring (2), forms circular inner convex platform (2a); The diameter of described lower porous disc (4) is equal to or slightly less than the internal diameter of inner convex platform (2a), and retaining ring (2) is placed in tank (1) the inner bottom surface cover porous disc (4) of staying; The internal diameter of described inner convex platform (2a) is equal to or slightly less than the internal diameter of cutting ring (7), and its height is lower than the height of lower porous disc (4); The height of described retaining ring (2) is greater than the height of lower porous disc (4) and the cutting edge (7a) of cutting ring (7) height sum, the height that is less than lower porous disc (4) and cutting ring (7) height with deduct again the height of lead ring groove (3a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604467.8U CN203479609U (en) | 2013-09-28 | 2013-09-28 | Floating ring type consolidation container for consolidation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604467.8U CN203479609U (en) | 2013-09-28 | 2013-09-28 | Floating ring type consolidation container for consolidation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479609U true CN203479609U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320604467.8U Expired - Fee Related CN203479609U (en) | 2013-09-28 | 2013-09-28 | Floating ring type consolidation container for consolidation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596847A (en) * | 2015-01-12 | 2015-05-06 | 宁波大学 | Soil consolidometer |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
-
2013
- 2013-09-28 CN CN201320604467.8U patent/CN203479609U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596847A (en) * | 2015-01-12 | 2015-05-06 | 宁波大学 | Soil consolidometer |
| CN104596847B (en) * | 2015-01-12 | 2017-05-24 | 宁波大学 | Soil consolidometer |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160928 |