CN108444790A - A kind of impervious sample production method of the soil cement of practicality - Google Patents
A kind of impervious sample production method of the soil cement of practicality Download PDFInfo
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- CN108444790A CN108444790A CN201810484839.5A CN201810484839A CN108444790A CN 108444790 A CN108444790 A CN 108444790A CN 201810484839 A CN201810484839 A CN 201810484839A CN 108444790 A CN108444790 A CN 108444790A
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- sample
- sample preparation
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- preparation cylinder
- soil
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- 239000002689 soil Substances 0.000 title claims abstract description 62
- 239000004568 cement Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 8
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229920000965 Duroplast Polymers 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 239000001993 wax Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of impervious sample production methods of the soil cement of practicality, belong to soil test technique field.The device that this production method uses includes mainly sample preparation cylinder, pressure-like plug, experimental desk and magnet base.Sample preparation cylinder is half-and-half type cylinder, is fitted together two cylinder pieces by bolt.Experimental desk lower surface is fixed with magnet base, is fixed sample preparation cylinder on the table by magnetic force.Flexible liner plate in sample preparation cylinder.The sample compactness obtained using this production method is uniform, cracked during avoidable late maintaining, and this production method is easy to operate, efficient.
Description
Technical field
The present invention relates to a kind of impervious sample production methods of the soil cement of practicality, belong to soil test technique field.
Background technology
In Excavation Process, water-head is generally had inside and outside foundation pit.Under the action of water-head, the water outside foundation pit can ooze
Quicksand can occur in people's foundation pit, when serious or dash forward to gush, foundation pit is damaged.Water-stop curtain can be effectively prevented this kind of broken
Bad, the underground water penetrated into foundation pit will be reduced significantly, it is easier to be discharged.In deep excavation project, underground water buried depth
Can be that water-stop curtain is arranged in material around foundation pit with soil cement when shallower and soil layer infiltration coefficient is larger.Soil cement is just
It is the mixture of soil and cement, generally uses Construction of High Pressure Jet Grouting Pile machinery in engineering, cement grout is mixed into shape in the soil body
At.Therefore, it is necessary to understand the impervious characteristic of soil cement, to determine the best additive ratio of cement in soil cement, this just need into
The impermeability test of row soil cement.
The preparation of the impervious sample of soil cement is a very the key link, and the quality of sample directly influences test result
Accuracy.Currently, there are two types of the shapes of the impervious sample made in laboratory：Cylindrical and conical butt.In view of scene
The cement soil sample of core boring sampling is cylindric, for the ease of the comparison of test results of the sample obtained with scene, indoor making
Soil cement impervious sample should preferentially use it is cylindric.It is previous that such columned sample is generally made using cutting ring.
During making cylindric sample using cutting ring, it is real that soil cement is that layering is hit, and be easy to cause the compacting of sample
Spend uneven, Coating combination, which is in subsequent maintenance, is susceptible to crackle.These factors can all have an impact test result,
Urgently develop the impervious sample production method of soil cement of more rational practicality.
Invention content
It is an object of the invention to solve the problems, such as the deficiencies in the prior art and, it is anti-to provide a kind of soil cement of practicality
Ooze sample production method.
The present invention provides a kind of impervious sample production method of the soil cement of practicality, the producing device of use includes mainly system
Sample cylinder, pressure-like plug, experimental desk, magnet base and liner plate；Experimental desk lower surface is fixed with magnet base, and magnet base is by magnetic force by sample preparation
Cylinder is fixed on desktop upper surface；Sample preparation cylinder is half-and-half type, is fitted together by bolt assembly by two cylinder pieces；Cylinder piece it is lateral
There is flange, is useful for connecting the bolt hole of another piece on the flange；Liner plate is close to sample preparation cylinder inner wall, in lateral head and the tail phase
It connects, is vertically higher by 10mm than sample preparation cylinder.
The process for making the impervious sample of soil cement includes mainly following steps：
Step 1：Two cylinder pieces are taken, it is opposite to be stitched together, the two is connected with, sample preparation cylinder is formed；
Step 2：Sample preparation cylinder is placed on smooth experimental desk, is fixed sample preparation cylinder by magnetic force；
Step 3：Liner plate is put into sample preparation cylinder, laterally keeps liner plate end to end, at this point, liner plate is close to sample preparation cylinder inner wall, liner plate
Inner wall brushing mineral oil, as releasing agent；
Step 4：The cement soil sample soil stirred evenly is weighed, slowly pours into sample preparation cylinder, flattens；
Step 5：Pressure sample plug is put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug and sample preparation cylinder
Upper surface is concordant, and in the pressurized state, is kept for 5 minutes；
Step 6：Removal bolt assembly, to release magnetic force, cylinder piece removes pressure-like plug, has obtained cement rotation turn switch
Soil sample；
Step 7：A cutting ring is taken, horizontal is on duroplasts backing plate, during the cement soil sample that step 5 obtains is put into cutting ring
Between position, adjustment position makes the gap uniformity of cement soil sample and cutting ring inner wall, the stone that injection heating is crossed into gap with needle tubing
Wax liquor body, it is ensured that sealing after 1 hour, has just obtained the impervious sample of soil cement.
Sample preparation cylinder uses half-and-half type, is for the ease of taking out the sample made, avoiding directly from cylinder（Such as cutting ring）It is interior
When release, sample is damaged and is damaged.The soil cement for making needed for a sample is disposably packed into sample preparation cylinder, can avoid
The problems such as compactness caused by reality is hit in layering is uneven and subsequent sample is also easy to produce crackle.The operation of sample preparation cylinder is fixed using magnet base
Get up very convenient, quick, and keeps experiment table surface clean and tidy.It is in order in the internal diameter and standard for keeping sample preparation cylinder using liner plate
In the case that cutting ring internal diameter is equal, the cement soil sample produced is put into when sealing with wax in cutting ring, cement soil sample in cutting ring
There is a preset gap between wall, to ensure wax-layer thickness.
The internal diameter of the sample preparation cylinder is equal with standard cutting ring, is 61.8mm, outer diameter 70mm, is highly 80mm, cylinder
There is flange in piece lower end.The internal diameter of sample preparation cylinder is equal with standard cutting ring internal diameter, convenient for being used for sample preparation cylinder to make conventional soil mechanics
Sample increases the use scope of sample preparation cylinder.The flange of cylinder piece lower end is the preferably fixed sample preparation cylinder in order to increase magnetic force.
The material of the liner plate is spring steel, and plate thickness 3.0mm, no restrained condition is a tablet.Then carry out impervious examination
It when testing preparation, needs that cement soil sample is put into cutting ring and is sealed with wax, to obtain impervious sample.The internal diameter of cutting ring is
61.8mm, a height of 40mm.After cement soil sample obtained is put into cutting ring, the gap of 3.0mm can meet the paraffin after heating
The flowing of liquid ensures that sample is tightly wrapped up.The material of liner plate uses spring steel, it can be ensured that liner plate has enough elasticity, just
In bending, and during taking out cement-stabilized soil sample, elasticity can make liner plate automatically disengage cement soil sample, and will not be to soil cement
Sample generates damage or destroys.
A diameter of 55.0mm of the pressure-like plug is highly 40mm.The height of sample is 40mm, and the height of pressure-like plug is
40mm, the high 80mm of sample preparation cylinder.When sample preparation, the sample soil weighed is poured into sample preparation cylinder, after leveling, is put into pressure-like plug, by squeezing
Pressure-like plug is pressed, the either flush of the upper surface and sample preparation cylinder of pressure-like plug is made, the soil cement that height is 40mm has then just been obtained and has tried
Sample.There is the gap of average 0.4mm between pressure-like plug and liner plate, can avoid pressure-like plug pressure-like plug and touch sample preparation cylinder inner wall.
The sample preparation cylinder, pressure-like plug, experimental desk and bolt assembly material be stainless steel.This is to ensure gained
Sample is not polluted by iron rust, also for the service life for increasing the device.
Compared with existing sample production method, the present invention can make sample one-pass molding, avoid in the manufacturing process of sample
Sample later stage problem of Cracking caused by carrying out multilayer compacting；Sample uniform force during being compacted soil cement ensures closely knit
Degree is uniform；The present apparatus makes simply, at low cost, easy to operate, and it is simple, efficient, quick to make sample flow channel.
Description of the drawings
Fig. 1 the structural representation of present invention.
Fig. 2 cylinder piece front schematic views.
The A-A sectional views of Fig. 3 cylinder pieces.
Fig. 4 cylinder piece schematic rear views.
Side schematic view after two cylinder piece assemblings of Fig. 5.
B-B sectional views after two cylinder piece assemblings of Fig. 6.
It is marked in figure：1- pieces；2- side flange bolts hole；3- pressure-like plugs；4- side flange bolts；5- sample soil；6- side flanges
Nut；7- side flanges；8- bottom flanges；9- desktops；10- supporting legs；11- magnet bases；12- rotary switches；13- liner plates.
Specific implementation mode
The following is specific embodiments of the present invention, and technical scheme of the present invention is described in conjunction with attached drawing.
Embodiment
The practical impervious sample production method of soil cement in the embodiment, used device include mainly sample preparation cylinder, pressure-like
Plug 3, experimental desk and magnet base 11, referring specifically to Fig. 1-Fig. 6.Experimental desk is made of desktop 9 and 4 supporting legs 10,9 following table of desktop
Face is fixed with magnet base 11, and magnet base 11 carries the rotary switch 12. of adjustable magnetic force size.Sample preparation cylinder is by two 1 group of cylinder pieces
At having side flange bolt hole 2 on the side flange 7 of cylinder piece 1.Two cylinder pieces 1 are assembled in by side flange bolt 4 and side flange nut 6
Together.There is bottom flange 8 in the lower end of cylinder piece 1.The internal diameter of sample preparation cylinder is 61.8mm, outer diameter 70mm, is highly 80mm.Pressure-like plug 3
A diameter of 55.0mm, be highly 40mm.Clip 2 is made of two clip pieces 7, passes through diametrically opposite two bolt assemblies
It links together, bolt assembly includes bolt 4 and nut 6.Liner plate 13 is close to sample preparation cylinder inner wall, end to end in transverse direction, vertically
It is higher by 10mm than sample preparation cylinder.The material of liner plate 13 is spring steel, and plate thickness 3.0mm, no restrained condition is a tablet.Sample preparation cylinder, pressure
Sample plug 3, experimental desk, all bolts and nuts material be stainless steel.
When making the impervious sample of soil cement, using following steps：
Step 1：Two cylinder pieces 1 are taken, it is opposite to be stitched together, side flange bolt 4 and side flange nut 6 are taken, side flange bolt 4 is made to wear
Side flange bolt hole 2 is crossed, side flange nut 6 is tightened, forms sample preparation cylinder；
Step 2：Sample preparation cylinder is placed on to the upper surface of the desktop 9 of smooth experimental desk, adjustment position makes sample preparation cylinder be located at mark
Position, lower face with the upper surface of desktop 9 is seamless contacts, rotation turn switch 12 is fixed sample preparation cylinder by magnetic force；
Step 3：Liner plate 13 is put into sample preparation cylinder, laterally keeps liner plate 13 end to end, at this point, liner plate 13 is close in sample preparation cylinder
Wall.13 inner wall brushing mineral oil of liner plate, as releasing agent；
Step 4：The cement soil sample soil 5 stirred evenly is weighed, is slowly poured into sample preparation cylinder, is flattened；
Step 5：Pressure sample plug 3 is put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug 3 and sample preparation cylinder
Upper surface it is concordant, and in the pressurized state, kept for 5 minutes, this be in order to avoid molding cement soil sample occur it is larger
Resilience；
Step 6：Unscrew side flange nut 6, removal bolt assembly, rotation turn switch 12 releases magnetic force, cylinder piece 1, removal
Pressure-like plug 3 obtains cement soil sample at this point, liner plate 13 automatically strips；
Step 7：A cutting ring is taken, horizontal is on duroplasts backing plate, during the cement soil sample that step 5 obtains is put into cutting ring
Between position, adjustment position makes the gap uniformity of cement soil sample and cutting ring inner wall, the stone that injection heating is crossed into gap with needle tubing
Wax liquor body, it is ensured that sealing after 1 hour, has just obtained the impervious sample of soil cement.
The description of above-mentioned specific implementation mode is merely to illustrate the present invention, rather than the rights protection model of the limitation present invention
It encloses.
Claims (5)
1. a kind of impervious sample production method of the soil cement of practicality, it is characterised in that：The producing device of use includes mainly sample preparation
Cylinder, pressure-like plug, experimental desk, magnet base and liner plate；Experimental desk lower surface is fixed with magnet base, and magnet base is by magnetic force by sample preparation cylinder
It is fixed on desktop upper surface；Sample preparation cylinder is half-and-half type, is fitted together by bolt assembly by two cylinder pieces；The lateral of cylinder piece has
Flange is useful for connecting the bolt hole of another piece on the flange；Liner plate is close to sample preparation cylinder inner wall, end to end in transverse direction,
Vertically 10mm is higher by than sample preparation cylinder；The process for making the impervious sample of soil cement includes mainly following steps：
Step 1：Two cylinder pieces are taken, it is opposite to be stitched together, the two is connected with, sample preparation cylinder is formed；
Step 2：Sample preparation cylinder is placed on smooth experimental desk, is fixed sample preparation cylinder by magnetic force；
Step 3：Liner plate is put into sample preparation cylinder, laterally keeps liner plate end to end, at this point, liner plate is close to sample preparation cylinder inner wall, liner plate
Inner wall brushing mineral oil, as releasing agent；
Step 4：The cement soil sample soil stirred evenly is weighed, slowly pours into sample preparation cylinder, flattens；
Step 5：Pressure sample plug is put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug and sample preparation cylinder
Upper surface is concordant, and in the pressurized state, is kept for 5 minutes；
Step 6：Removal bolt assembly, to release magnetic force, cylinder piece removes pressure-like plug, has obtained cement rotation turn switch
Soil sample；
Step 7：A cutting ring is taken, horizontal is on duroplasts backing plate, during the cement soil sample that step 5 obtains is put into cutting ring
Between position, adjustment position makes the gap uniformity of cement soil sample and cutting ring inner wall, the stone that injection heating is crossed into gap with needle tubing
Wax liquor body, it is ensured that sealing after 1 hour, has just obtained the impervious sample of soil cement.
2. the impervious sample production method of soil cement according to claim 1, it is characterised in that：The internal diameter of the sample preparation cylinder
It is equal with standard cutting ring, it is 61.8mm, outer diameter 70mm, is highly 80mm, there is flange in cylinder piece lower end.
3. the impervious sample production method of soil cement according to claim 1, it is characterised in that：The material of liner plate is spring
Steel, plate thickness 3.0mm, no restrained condition are a tablet.
4. the impervious sample production method of soil cement according to claim 1, it is characterised in that：Pressure-like plug it is a diameter of
55.0mm is highly 40mm.
5. the impervious sample production method of soil cement according to claim 1, it is characterised in that：Sample preparation cylinder, pressure-like plug, experiment
The material of table and bolt assembly is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484839.5A CN108444790B (en) | 2018-05-20 | 2018-05-20 | Practical cement soil impervious sample manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484839.5A CN108444790B (en) | 2018-05-20 | 2018-05-20 | Practical cement soil impervious sample manufacturing method |
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| Publication Number | Publication Date |
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| CN108444790A true CN108444790A (en) | 2018-08-24 |
| CN108444790B CN108444790B (en) | 2024-02-27 |
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| CN201810484839.5A Active CN108444790B (en) | 2018-05-20 | 2018-05-20 | Practical cement soil impervious sample manufacturing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006715A (en) * | 2019-01-25 | 2019-07-12 | 同创工程设计有限公司 | A kind of modified native method for making sample without lateral confinement sample of stream modeling |
| CN110296928A (en) * | 2019-07-19 | 2019-10-01 | 三峡大学 | The device and method of visualization fracture seepage is simulated using magnetic fluid |
| CN111879580A (en) * | 2020-06-22 | 2020-11-03 | 北京建筑大学 | Sample preparation device and sample preparation method for geotechnical large triaxial test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110006715A (en) * | 2019-01-25 | 2019-07-12 | 同创工程设计有限公司 | A kind of modified native method for making sample without lateral confinement sample of stream modeling |
| CN110296928A (en) * | 2019-07-19 | 2019-10-01 | 三峡大学 | The device and method of visualization fracture seepage is simulated using magnetic fluid |
| CN110296928B (en) * | 2019-07-19 | 2022-04-08 | 三峡大学 | Device and method for simulating visual fracture seepage by using magnetofluid |
| CN111879580A (en) * | 2020-06-22 | 2020-11-03 | 北京建筑大学 | Sample preparation device and sample preparation method for geotechnical large triaxial test |
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|---|---|
| CN108444790B (en) | 2024-02-27 |
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