CN108444892A - A kind of impervious sample production method of the soil cement of simplicity - Google Patents
A kind of impervious sample production method of the soil cement of simplicity Download PDFInfo
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- CN108444892A CN108444892A CN201810484840.8A CN201810484840A CN108444892A CN 108444892 A CN108444892 A CN 108444892A CN 201810484840 A CN201810484840 A CN 201810484840A CN 108444892 A CN108444892 A CN 108444892A
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- sample
- cylinder
- soil
- sample preparation
- cement
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- 239000002689 soil Substances 0.000 title claims abstract description 56
- 239000004568 cement Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 45
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 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
- 238000007670 refining 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
- 238000000034 method Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 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
- 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
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 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
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of impervious sample production methods of the soil cement of simplicity, belong to soil test technique field.The producing device of use includes mainly the work backing plate of sample preparation cylinder, pressure-like plug, strap bolt.Sample preparation cylinder is half-and-half type cylinder, and connection bolt passes through the side flange of two opposite cylinder pieces.There is flange in the lower end of sample preparation cylinder, is bolted on work backing plate.The extruded soil cement stirred evenly of pressure-like plug, produces cement soil sample, then the sample of impermeability test requirement is obtained after sealing.The sample compactness obtained using this production method is uniform, cracked during avoidable late maintaining, and this 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 simplicity, 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,
The impervious sample producing device of more reasonable soil cement is urgently developed, and formulates corresponding production method.
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 simplicity
Ooze sample method.
The present invention provides a kind of impervious sample production method of the soil cement of simplicity, the producing device of use includes mainly system
The work backing plate of sample cylinder, pressure-like plug, strap bolt；Sample preparation cylinder is half-and-half type cylinder, and connection bolt passes through two opposite cylinder pieces
Side flange；There is bottom flange in cylinder piece lower end, has bolt hole in the middle part of bottom flange；Bolt upward, the bolt are welded on work backing plate
Bolt hole on cylinder piece bottom flange, and corresponding nut is installed, to fix sample preparation cylinder.The system of the impervious sample of the soil cement
It is mainly included the following steps that as method：
Step 1：Two cylinder pieces are taken, it is opposite to be stitched together, it is connected by screw bolts, forms sample preparation cylinder；
Step 2：Sample preparation cylinder is placed on smooth work backing plate, adjusts position, bottom flange bolt is made to pass through corresponding bottom flange
Bolt hole is installed and is tightened bottom flange nut, sample preparation cylinder is fixed on work backing plate；
Step 3：To sample preparation cylinder inner wall brushing mineral oil, as releasing agent, the cement soil sample soil stirred evenly is weighed, slowly
It pours into sample preparation cylinder, flattens；
Step 4：Pressure sample plug, is smoothly put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug and system
The upper surface of sample cylinder is concordant, and in the pressurized state, is kept for 5 minutes；
Step 5：Unscrew side flange nut and remove side flange bolt, unscrew and remove bottom flange nut, above obtain through refining sample cylinder, detaches
Cylinder piece, removes pressure-like plug, obtains cement soil sample；
Step 6：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, make the gap uniformity of cement soil sample and cutting ring inner wall, the vasoliniment that injection heating is crossed into gap with needle tubing, really
Confidential letter 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.Spiral shell upward is welded on work backing plate
Bolt, for fixing sample preparation cylinder.
The internal diameter of the sample preparation cylinder is 56mm, outer diameter 66mm, is highly 80mm.This is because then carrying out impervious
When experiment, need that sample is put into cutting ring and is sealed with wax.The internal diameter of cutting ring is 61.8mm, a height of 40mm.Sample obtained is put into
After in cutting ring, there is the flowing for the vasoliniment that the gap of nearly 3.0mm can meet after heating, ensure that sample is tightly wrapped up.
A diameter of 55.4mm 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, makes the either flush of the upper surface and sample preparation cylinder of pressure-like plug, has then just obtained diameter 56mm, the water of height 40mm
Soil sample.
The side flange is equal with the thickness of bottom flange, and is twice of a piece wall thickness.Thickness of flange thickeies, reducible
The deflection of bundled tube piece, and convenient for being bolted.
The sample preparation cylinder, pressure-like plug, the work backing plate of strap bolt, all screw bolt and nut material be stainless
Steel.This is in order to ensure that gained sample is not polluted by iron rust, also for the service life for increasing the device.
Compared with existing production method, using production method provided by the invention, sample one-pass molding can be made, avoid carrying out
Sample later stage problem of Cracking caused by multilayer is compacted；Sample uniform force during being compacted soil cement ensures that compactness is equal
It is even；Producing device manufacture in this method is easy, at low cost, and the sample production process of this method is easy, efficient, quick.
Description of the drawings
The structural schematic diagram of Fig. 1 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.
The side schematic view of two cylinder piece assemblies of Fig. 5.
The B-B sectional views of two cylinder piece assemblies 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- work backing plates；10- bottom flange bolts hole；11- bottom flange bolts；12- bottom flange spiral shells
It is female.
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 producing device of the easy impervious sample production method of soil cement in the embodiment, use includes mainly sample preparation cylinder, pressure
Sample plug 3, work backing plate 9, referring specifically to Fig. 1-Fig. 6.Bottom flange bolt 11 upward is welded on work backing plate 9, which wears
The bottom flange bolt hole 10 on 1 bottom flange 8 of cylinder piece is crossed, and corresponding bottom flange nut 12 is installed, to fix sample preparation cylinder.Bottom is convex
Edge bolt 11 and corresponding bottom flange nut 12 are known as bottom flange bolt assembly.Sample preparation cylinder is made of two cylinder pieces 1, cylinder piece
1 lower end has bottom flange 8, side to have side flange 7, there is side flange bolt hole 2 on side flange 7.Side flange bolt 4 passes through side flange
Bolt hole 2 tightens side flange nut 6, and two opposite cylinder pieces 1 are assembled into sample preparation cylinder.Side flange bolt 4 and corresponding
Side flange nut 6 is known as side flange bolt assembly.The thickness of side flange 7 and bottom flange 8 is 10mm.Sample preparation cylinder internal diameter is 56mm,
Outer diameter is 66mm, is highly 80mm.A diameter of 55.4mm of pressure-like plug 3 is highly 40mm.Sample preparation cylinder, pressure-like plug 3, bottom flange
Bolt assembly, side flange bolt assembly, work backing plate 9 material be stainless steel.When making the impervious sample of soil cement, use with
Lower step：
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 smooth work backing plate 9, adjusts position, bottom flange bolt 11 is made to pass through corresponding bottom convex
Edge bolt hole 10 is installed and tightens bottom flange nut 12；
Step 3：The cement soil sample soil 5 stirred evenly is weighed as releasing agent to sample preparation cylinder inner wall brushing mineral oil, is delayed
It is slow to pour into sample preparation cylinder, it flattens；
Step 4：Pressure sample plug 3 again is smoothly put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug 3
It is concordant with the upper surface of sample preparation cylinder, and in the pressurized state, kept for 5 minutes, this is in order to avoid molding cement soil sample
Larger resilience occurs；
Step 5：Unscrew and remove side flange nut 6 and bottom flange nut 12, above obtain through refining sample cylinder, cylinder piece 1 removes pressure-like plug
3, obtain cement soil sample；
Step 6：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, make the gap uniformity of cement soil sample and cutting ring inner wall, the vasoliniment that injection heating is crossed into gap with needle tubing, really
Confidential letter 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 simplicity, it is characterised in that：The sample preparation device of use includes mainly sample preparation
The work backing plate of cylinder, pressure-like plug, strap bolt；Sample preparation cylinder is half-and-half type cylinder, and connection bolt passes through the side of two opposite cylinder pieces
Flange；There is bottom flange in cylinder piece lower end, has bolt hole in the middle part of bottom flange；Bolt upward is welded on work backing plate, which wears
The bolt hole on cylinder piece bottom flange is crossed, and corresponding nut is installed, to fix sample preparation cylinder；The making of the impervious sample of the soil cement
It mainly includes the following steps that：
Step 1：Two cylinder pieces are taken, it is opposite to be stitched together, it is connected by screw bolts, forms sample preparation cylinder；
Step 2：Sample preparation cylinder is placed on smooth work backing plate, adjusts position, bottom flange bolt is made to pass through corresponding bottom flange
Bolt hole is installed and is tightened bottom flange nut, sample preparation cylinder is fixed on work backing plate；
Step 3：To sample preparation cylinder inner wall brushing mineral oil, as releasing agent, the cement soil sample soil stirred evenly is weighed, slowly
It pours into sample preparation cylinder, flattens；
Step 4：Pressure sample plug, is smoothly put into sample preparation cylinder, by slowly applying pressure so that the upper surface of pressure-like plug and system
The upper surface of sample cylinder is concordant, and in the pressurized state, is kept for 5 minutes；
Step 5：Unscrew side flange nut and remove side flange bolt, unscrew and remove bottom flange nut, above obtain through refining sample cylinder, detaches
Cylinder piece, removes pressure-like plug, obtains cement soil sample；
Step 6：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, make the gap uniformity of cement soil sample and cutting ring inner wall, the vasoliniment that injection heating is crossed into gap with needle tubing, really
Confidential letter 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 highly 80mm for 56mm, outer diameter 66mm.
3. the impervious sample production method of soil cement according to claim 1, it is characterised in that：The diameter of the pressure-like plug
It is highly 40mm for 55.4mm.
4. the impervious sample production method of soil cement according to claim 1, it is characterised in that：The side flange and bottom are convex
The thickness of edge is equal, and is twice of a piece wall thickness.
5. the impervious sample production method of soil cement according to claim 1, it is characterised in that：Sample preparation cylinder, pressure-like plug, band spiral shell
The work backing plate of bolt, the material of all screw bolt and nut are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484840.8A CN108444892A (en) | 2018-05-20 | 2018-05-20 | A kind of impervious sample production method of the soil cement of simplicity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484840.8A CN108444892A (en) | 2018-05-20 | 2018-05-20 | A kind of impervious sample production method of the soil cement of simplicity |
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| CN108444892A true CN108444892A (en) | 2018-08-24 |
Family
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| CN201810484840.8A Pending CN108444892A (en) | 2018-05-20 | 2018-05-20 | A kind of impervious sample production method of the soil cement of simplicity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556931A (en) * | 2018-10-31 | 2019-04-02 | 同济大学 | Soil cement cutting ring sample preparation facilities and permeability coefficient of cement soil measuring method, equipment |
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Application publication date: 20180824 |
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