CN106940164A - A kind of dilatometer of testing soil vertical deformation - Google Patents
A kind of dilatometer of testing soil vertical deformation Download PDFInfo
- Publication number
- CN106940164A CN106940164A CN201710245315.6A CN201710245315A CN106940164A CN 106940164 A CN106940164 A CN 106940164A CN 201710245315 A CN201710245315 A CN 201710245315A CN 106940164 A CN106940164 A CN 106940164A
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- China
- Prior art keywords
- counter
- base
- groove
- column
- force circle
- Prior art date
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- 239000002689 soil Substances 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
Abstract
The present invention relates to a kind of dilatometer of testing soil vertical deformation, including base and dial gauge, open up fluted on the base, inlet opening is provided with the side wall of the base；Counter-force circle is provided with the groove, through hole is provided with the counter-force circle, the through hole includes the major diameter portion in bottom and the minor diameter in top, and the external diameter of the major diameter portion and sampling spoon matches, the internal diameter of the minor diameter and sampling spoon matches, in the minor diameter can upper and lower displacement be provided with jacking block；The side of the base, which is vertically arranged with column, the column, is provided with cross bar, and the cross bar is provided with the dial gauge, and the stress pointer of the dial gauge is contacted with the jacking block.The beneficial effects of the invention are as follows：The counterforce device of current " counter-force lid+screw " is substituted using the gravity of counter-force circle, simple to operate, demolition, installation sample efficiency improves at least 50%, and the service life of extension device, while equipment surface is smooth, easily cleaning.
Description
Technical field
The present invention relates to soil testing instrument field, and in particular to a kind of dilatometer of testing soil vertical deformation.
Background technology
The expansion of foundation soil can make house crack, and water channel comes down repeatedly, slope failure, and road is damaged, many country's inputs
The geotechnical engineering problems that a large amount of human and material resources are administered produced by swelled grounds, for many years domestic and foreign scholars have been working hard solve this
One harm.Expansion rate is to judge whether foundation soil has an expansile important indicator.Cutting ring sample is measured using dilatometer
Vertical deformation is the method commonly used in engineering, but existing dilatometer is incited somebody to action using three screws minor thread hole corresponding with base
Counterforce device is fixed with base, and then geometrical clamp cutting ring sample between counterforce device and base, the dilatometer install with dismounting compared with
Difficulty, it is difficult to control the level of counterforce device, influences result of the test, equipment is not corrosion-resistant.
The content of the invention
In summary, in order to solve the defect that prior art is present, the technical problems to be solved by the invention are to provide one
Plant the dilatometer of testing soil vertical deformation.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of dilatometer of testing soil vertical deformation, bag
Base and dial gauge are included, the base is opens up fluted inside column and its, and the bottom of the groove is provided with inlet opening；It is described
The through hole for being axially arranged with column in counter-force circle, the counter-force circle along it is provided with groove, the through hole includes being used in bottom
Put the major diameter portion of cutting ring sample and in top be used for measure cutting ring sample deformation minor diameter, and the major diameter portion with
The external diameter of sampling spoon matches, and the internal diameter of the minor diameter and sampling spoon matches, in the minor diameter and right
Answer the top of cutting ring sample in the major diameter portion provided with can upper and lower displacement jacking block；
The side of the base is vertically arranged with column, the column and corresponds to the upper horizontal setting of the counter-force circle
There is cross bar, the cross bar is provided with the dial gauge, and the stress pointer of the dial gauge is vertical along the minor diameter
Contacted after extending downwardly with the jacking block.
The beneficial effects of the invention are as follows：The counterforce device of current " counter-force lid+screw " is substituted using the gravity of counter-force circle,
Simple to operate, demolition, installation sample efficiency improves at least 50%, and the service life of extension device, while equipment surface is smooth, holds
Easy cleaning.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further, being provided with the position of the bottom of the groove and the correspondence counter-force circle lower end is used to block on counter-force circle
Neck.
Beneficial effect using above-mentioned further scheme is：Prevent from counter-force circle from occurring lateral displacement to influence test to tie
Really.
Further, the bottom even of the groove, which is provided with, is used to increase several gap slots of water body diffusion velocity, and
The gap slot is in the region in the bottom of the groove and the correspondence major diameter portion.
Beneficial effect using above-mentioned further scheme is：The bottom that water body enters in groove from inlet opening, passes through breach
Groove quickly spreads, and can improve water body into the speed in cutting ring sample, ensure water body even into cutting ring sample again.
Further, filter paper and permeable stone are sequentially provided with up and down between the bottom of the groove and cutting ring sample.
Beneficial effect using above-mentioned further scheme is：Permeable stone makes current ensure that its is uniform while entering cutting ring sample
Property, do not wash away the soil body；Filter paper prevents that soil particle blocks permeable stone in cutting ring sample.
Further, the base is provided with the bubble for testing its levelness, and in the bottom of the base provided with being used for
Adjust the balancing leg of its levelness.
Beneficial effect using above-mentioned further scheme is：Ensure that base is in horizontality, improve the standard of test result
Exactness.
Further, the base, the counter-force circle, the column, the cross bar and the balancing leg are stainless steel
Material is made.
Beneficial effect using above-mentioned further scheme is：Instrument material uses stainless steel, solves solution in soil test
Corrosion of the acid-base property to container, available for the vertical swell increment of measurement Polluted Soil, increases dilatometer answering in soil test
Use scope.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the assembling schematic diagram of base and column；
Fig. 3 is the profile of the bottom of base；
Fig. 4 is the schematic diagram of counter-force circle.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, balancing leg, 2, base, 3, counter-force circle, 4, column, 5, permeable stone, 6, filter paper, 7, cutting ring sample, 8, jacking block, 9, horizontal
Bar, 10, dial gauge, 11, groove, 12, inlet opening, 13, bubble, 14, major diameter portion, 15, minor diameter, 16, gap slot, 17,
Neck.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As illustrated in fig. 1 and 2, a kind of dilatometer of testing soil vertical deformation, including base 2 and dial gauge 10, the bottom
Seat 2 is opens up fluted 11 inside column and its, the bottom of the groove 11 is provided with inlet opening 12；Provided with anti-in the groove 11
The through hole of column is axially arranged with power circle 3, the counter-force circle 3 along it, the through hole puts cutting ring sample 7 including being used in bottom
Major diameter portion 14 and being used in top measure the minor diameter 15 of the deformation of cutting ring sample 7, and the major diameter portion 14 is with taking
The external diameter of sample cutting ring matches, and the minor diameter 15 and the internal diameter of sampling spoon match, in the minor diameter 15 and
The top of cutting ring sample 7 in the correspondence major diameter portion 14 provided with can upper and lower displacement jacking block 8.The bottom of the groove 11 and ring
Filter paper 6 and permeable stone 5 are sequentially provided between knife sample 7 up and down.
The side of the base 2 is vertically arranged with column 4, the column 4 and corresponds to the upper horizontal of the counter-force circle 3
Be provided with cross bar 9, the cross bar 9 is provided with the dial gauge 10, and the dial gauge 10 stress pointer along described small
Diameter portion 15 is contacted after extending straight down with the jacking block 8.
As shown in figure 3, being provided with the bottom and the position of the correspondence lower end of counter-force circle 3 of the groove 11 is used for counter-force
The neck that circle 3 is blocked.The bottom even of the groove 11, which is provided with, to be used to increase several gap slots 16 of water body diffusion velocity, and
And the gap slot 16 is in the bottom of the groove 11 and the region in the correspondence major diameter portion 14.
A complete test process is described below：
The bottom that water body is entered in groove 11 from inlet opening 12 first, then it is fast by the bottom notch groove 16 in groove 11
Speed diffusion, so that water body can be rapidly entered in cutting ring sample 7, and can guarantee that water body even into cutting ring sample 7.Then water
Body is entered in cutting ring sample 7 through permeable stone 5 and filter paper 6 successively, and permeable stone 5 makes current ensure it while entering cutting ring sample 7
Uniformity, does not wash away the soil body；Filter paper 6 prevents that soil particle blocks permeable stone 5 in cutting ring sample.Cutting ring sample 7 becomes after absorbing water to be expanded,
Occur vertical deformation under the constraint of counter-force circle 3, jacking block 8, jacking block can be pushed up while vertical deformation occurs for cutting ring sample 7
8 push up the pointer of dial gauge 10 upwards, its reading is changed, as long as the reading of experimenter's periodic logging dial gauge 10, directly
Untill cutting ring sample 7 does not expand, the relevant parameter of the vertical deformation of cutting ring sample 7 just can obtain.Because the dilatometer utilizes counter-force
The gravity of circle 3 substitutes the counterforce device of current " counter-force lid+screw ", and it is described that counter-force circle 3 is directly placed at correspondence in groove 11
The position of neck 17, is linked, its is simple to operate in the absence of screw, and demolition, installation sample efficiency improves at least 50%, and equipment
Surface is smooth, easily cleaning, can be with the service life of extension device, while can guarantee that the accuracy of test result.
The other base 2, the counter-force circle 3, the column 4, the cross bar 9 and the balancing leg 1 are stainless steel
Material is made, and solves corrosion of the solution acid-basicity to container in soil test, available for the vertical swell increment of measurement Polluted Soil, increases
Big application of the dilatometer in soil test.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of dilatometer of testing soil vertical deformation, it is characterised in that including base (2) and dial gauge (10), the bottom
Seat (2) is opens up fluted (11) inside column and its, the bottom of the groove (11) is provided with inlet opening (12)；The groove
(11) through hole for being axially arranged with column in counter-force circle (3), the counter-force circle (3) along it is provided with, the through hole includes being in bottom
Be used for put cutting ring sample (7) major diameter portion (14) and in top be used for measure cutting ring sample (7) deformation minor diameter
(15), and the major diameter portion (14) and the external diameter of sampling spoon match, the minor diameter (15) and sampling spoon
Internal diameter matches, and the top of the cutting ring sample (7) in the minor diameter (15) and in the correspondence major diameter portion (14) is provided with
Can upper and lower displacement jacking block (8)；
The side of the base (2) is vertically arranged with column (4), the column (4) and corresponds to the top of the counter-force circle (3)
Horizontally disposed to have cross bar (9), the cross bar (9) is provided with the dial gauge (10), and the stress of the dial gauge (10) refers to
Pin is contacted after extending straight down along the minor diameter (15) with the jacking block (8).
2. dilatometer according to claim 1, it is characterised in that the bottom of the groove (11) and the correspondence counter-force circle
(3) neck for being used for blocking counter-force circle (3) is provided with the position of lower end.
3. dilatometer according to claim 1, it is characterised in that the bottom even of the groove (11), which is provided with, to be used to increase
Several gap slots (16) of water body diffusion velocity, and the gap slot (16) is in the bottom and correspondingly of the groove (11)
The region of the major diameter portion (14).
4. dilatometer according to claim 1, it is characterised in that between the bottom of the groove (11) and cutting ring sample (7)
Filter paper (6) and permeable stone (5) are sequentially provided with up and down.
5. the dilatometer according to any one of Claims 1-4, it is characterised in that the base (2) is provided with its water of test
The bubble (13) of Pingdu, and the balancing leg (1) for being used for adjusting its levelness is provided with the bottom of the base (2).
6. dilatometer according to claim 1, it is characterised in that the base (2), the counter-force circle (3), the column
(4), the cross bar (9) and the balancing leg (1) are stainless steel material and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245315.6A CN106940164A (en) | 2017-04-14 | 2017-04-14 | A kind of dilatometer of testing soil vertical deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245315.6A CN106940164A (en) | 2017-04-14 | 2017-04-14 | A kind of dilatometer of testing soil vertical deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106940164A true CN106940164A (en) | 2017-07-11 |
Family
ID=59463041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710245315.6A Pending CN106940164A (en) | 2017-04-14 | 2017-04-14 | A kind of dilatometer of testing soil vertical deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106940164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405709A (en) * | 2018-10-22 | 2019-03-01 | 广州亿骏科技有限公司 | A kind of height-gauge of construction sealing rod |
| CN114965944A (en) * | 2022-04-24 | 2022-08-30 | 中国铁路设计集团有限公司 | Coarse-grained soil expansion test device, system and method |
Citations (7)
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|---|---|---|---|---|
| CN202562812U (en) * | 2012-01-05 | 2012-11-28 | 铁道第三勘察设计院集团有限公司 | Portable rock swelling tester |
| CN102914631A (en) * | 2012-10-16 | 2013-02-06 | 上海大学 | Testing device for measuring expansive force of soil sample in real time |
| CN103712842A (en) * | 2014-01-09 | 2014-04-09 | 西南交通大学 | Bidirectional layered sample pressing device for preparing consolidation test sample and sample pressing method thereof |
| CN104634944A (en) * | 2015-02-04 | 2015-05-20 | 山东大学 | Novel soil radial expansion rate tester and using method thereof |
| CN205484329U (en) * | 2016-03-18 | 2016-08-17 | 广西大学 | Temperature control soil swelling appearance |
| CN106501485A (en) * | 2016-10-28 | 2017-03-15 | 三峡大学 | Multi-functional soil sample expansion and shrinkage tester and method of testing |
| CN206944913U (en) * | 2017-04-14 | 2018-01-30 | 桂林理工大学 | A kind of dilatometer of testing soil vertical deformation |
-
2017
- 2017-04-14 CN CN201710245315.6A patent/CN106940164A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202562812U (en) * | 2012-01-05 | 2012-11-28 | 铁道第三勘察设计院集团有限公司 | Portable rock swelling tester |
| CN102914631A (en) * | 2012-10-16 | 2013-02-06 | 上海大学 | Testing device for measuring expansive force of soil sample in real time |
| CN103712842A (en) * | 2014-01-09 | 2014-04-09 | 西南交通大学 | Bidirectional layered sample pressing device for preparing consolidation test sample and sample pressing method thereof |
| CN104634944A (en) * | 2015-02-04 | 2015-05-20 | 山东大学 | Novel soil radial expansion rate tester and using method thereof |
| CN205484329U (en) * | 2016-03-18 | 2016-08-17 | 广西大学 | Temperature control soil swelling appearance |
| CN106501485A (en) * | 2016-10-28 | 2017-03-15 | 三峡大学 | Multi-functional soil sample expansion and shrinkage tester and method of testing |
| CN206944913U (en) * | 2017-04-14 | 2018-01-30 | 桂林理工大学 | A kind of dilatometer of testing soil vertical deformation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405709A (en) * | 2018-10-22 | 2019-03-01 | 广州亿骏科技有限公司 | A kind of height-gauge of construction sealing rod |
| CN114965944A (en) * | 2022-04-24 | 2022-08-30 | 中国铁路设计集团有限公司 | Coarse-grained soil expansion test device, system and method |
| CN114965944B (en) * | 2022-04-24 | 2023-08-11 | 中国铁路设计集团有限公司 | Coarse-grained soil expansion test device, system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170711 |
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| RJ01 | Rejection of invention patent application after publication |