CN109164028A - A kind of seepage flow considering vertical seepage flow, sedimentation testing device and test method - Google Patents
A kind of seepage flow considering vertical seepage flow, sedimentation testing device and test method Download PDFInfo
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- CN109164028A CN109164028A CN201811106721.5A CN201811106721A CN109164028A CN 109164028 A CN109164028 A CN 109164028A CN 201811106721 A CN201811106721 A CN 201811106721A CN 109164028 A CN109164028 A CN 109164028A
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000004062 sedimentation Methods 0.000 title claims abstract description 42
- 238000010998 test method Methods 0.000 title claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000003673 groundwater Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000004575 stone Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 230000008595 infiltration Effects 0.000 claims description 18
- 238000001764 infiltration Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 230000035699 permeability Effects 0.000 claims description 5
- 238000004088 simulation Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 4
- 238000007596 consolidation process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000013401 experimental design Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 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
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of seepage flow for considering vertical seepage flow, sedimentation testing device and test methods, belong to testing equipment field.The settling leg with holes one of the seepage flow, sedimentation testing device that consider vertical seepage flow is interior for hollow structure；Bracket is placed in settling leg one with holes, the exhaust valve being connected in it, drain valve is respectively set in the shaft of settling leg one with holes；It is hollow structure in the settling leg with holes two, the shaft of settling leg two with holes is equipped with the bottom valve for the row being connected in it；Drain valve in settling leg one with holes is connected with the bottom valve of settling leg two with holes to be detachable；Settling test soil sample is arranged on the top of the bracket.Influence of the seepage flow, the vertical seepage flow of sedimentation testing device analog of the vertical seepage flow of the considerations of present invention uses to Settlement Consolidation process, the height and variation of acceptable flexibly simulated groundwater position, expands the research contents of interior settlement test.
Description
Technical field
The present invention relates to a kind of seepage flow for considering vertical seepage flow, sedimentation testing device and test methods, belong to testing equipment
Field.
Background technique
With the rapid development of our country's economy, Deposits in Eastern Coastal China area land resource increasingly lacks.In order to solving people
Contradiction, large-scale epeirogenetic engineering are constantly unfolded, and it is more deep to the research of infall process that this is also required to us.Previous big
It is all made of various sizes of column shape container in the laboratory test of part as sedimentation vessel, can be punched in settling leg and load onto valve
Door, to realize draining or acquire the soil body near valve；Asbestos gauge can also be loaded at punched hole to escape to prevent particle, with
Pore pressure meter is connected, thus the variation of Observable infall process Pore Pressure；There are also tests in settling leg device for upper end vacuum
Mud-suction nozzle, thus more convenient and quicker obtain the soil bodys of different depth locations, be used for subsequent analysis and research.The above dress
Other data can be obtained while observing soil body sedimentation by setting, such as the change curve of pore pressure, the soil body in a certain moment of deposition
Water-cut variation, distribution of particles variation etc..
But during engineering practice, for a piece of blast-filled ground, due to bottom is the soil body and it is non-test in
It is assumed to be the pedestal of ideal impermeable water state, there are certain infiltration coefficients, may cause laboratory settlement law obtained
It is deviated in the rule that engineering site is observed, and will affect the estimation of duration of settlement and absolute altitude.In addition, in infall process
Due to the effect of seepage flow, the water recharge of groundwater in the soil body is settled, may cause the variation of level of ground water, therefore actual hydraulic reclamation mistake
It is not that stably, the height change of this underground water influences to a certain extent to the supplement of underground water that the soil body is settled in journey
Infall process.Therefore, it is necessary to develop a kind of experimental rig, can consider in infall process the influence of bottom seepage flow and
Consider influence of the variation of beneath water water level caused by seepage flow to infall process.
Summary of the invention
The present invention adopts a kind of seepage flow for considering vertical seepage flow, sedimentation testing device and test method in view of the above deficiencies；Mould
It is quasi- there are the settlement laws in the case where vertical seepage flow will be more close with the settlement law in Practical Project.It is set in the bottom of sedimentation
The device and corresponding matched captation for setting analog infiltration, for calculating the size and variation of infiltration rate in test.
The present invention adopts the following technical scheme:
Seepage flow, the sedimentation testing device of the vertical seepage flow of consideration of the present invention, including settling leg with holes one, settling leg with holes
Two, bracket, exhaust valve, drain valve, bottom valve；It is hollow structure in the settling leg with holes one；In settling leg one with holes
Bracket is placed, the exhaust valve being connected in it, drain valve is respectively set in the shaft of settling leg one with holes；The sedimentation with holes
It is hollow structure in column two, the shaft of settling leg two with holes is equipped with the bottom valve for the row being connected in it；Settling leg with holes
Drain valve on one is connected with the bottom valve of settling leg two with holes to be detachable；The top arrangement sedimentation examination of the bracket
Test soil sample.
Seepage flow, the sedimentation testing device of the vertical seepage flow of consideration of the present invention, the settling test soil sample it is upper and lower
End is respectively arranged permeable stone.
Seepage flow, the sedimentation testing device of the vertical seepage flow of consideration of the present invention, the drain valve are located at sedimentation with holes
One bottom end of column；Exhaust valve is arranged in the top of drain valve.
Seepage flow, the sedimentation testing device of the vertical seepage flow of consideration of the present invention, the edge of the permeable stone are equipped with close
Seal；The upper and lower side of permeable stone is respectively equipped with filter paper.
Seepage flow, the sedimentation testing device of the vertical seepage flow of consideration of the present invention, the inner wall of the settling leg one with holes with
Bottom end is upwardly extended equipped with scale.
The permeability test method of the seepage flow for considering vertical seepage flow, sedimentation testing device of the present invention, test procedure is such as
Under:
1) bracket, is placed in settling leg one with holes and closes exhaust valve and drain valve；Place permeable stone in the top of bracket；It is permeable
Fill certain thickness earth material in stone top；
2) it, is filled the water into settling leg one with holes, until the earth material in step 1) is completely soaked and stands；
3) earth material in the settling leg with holes one after standing, is in water suction saturation state；It opens drain valve and internal water storage is discharged；
4), soak saturation earth material top place another piece of permeable stone；And earth material is filled on the permeable stone；And read with holes sink
The height of water level of one bottom end of column drops；
5) exhaust valve, is opened, settling leg with holes at the beginning test by simulated groundwater position simulation of infiltration, obtains infiltration coefficient.
The settling test method of the seepage flow for considering vertical seepage flow, sedimentation testing device of the present invention, test procedure is such as
Under:
1) bracket, is placed in settling leg one with holes and closes exhaust valve and drain valve；Place permeable stone in the top of bracket；It is permeable
Fill certain thickness earth material in stone top；
2), the drain valve in settling leg one with holes is connected by hose with the bottom valve of settling leg two with holes；
3), simultaneously filled the water into settling leg one with holes in settling leg two with holes, soaking step 1) in earth material；And water level is not higher than
At the top of earth material and stand；Keep settling leg one with holes consistent with the height of water level in settling leg two with holes；
4) earth material in the settling leg with holes one after standing, is in water suction saturation state；It is put in the earth material upper end of its saturation state
Another piece of permeable stone is set, and fills earth material on the permeable stone；
5), continue to continue to keep height of water level consistent with water filling in settling leg two with holes to settling leg one with holes；
6) drain valve and bottom valve, are opened；Settling leg with holes carries out sedimentation simulated experiment at the beginning；And record settling test phase
Close the height change of data and water level in corresponding I, No. II settling leg.
The permeability test method of the seepage flow of the vertical seepage flow of consideration of the present invention, sedimentation testing device, it is described soak it is quiet
Setting the time is 24 hours.
The settling test method of the seepage flow of the vertical seepage flow of consideration of the present invention, sedimentation testing device, it is described soak it is quiet
Setting the time is 24 hours.
Beneficial effect
The seepage flow of the vertical seepage flow of the considerations of present invention uses, the vertical seepage flow of sedimentation testing device analog are to Settlement Consolidation process
It influences, the height and variation of acceptable flexibly simulated groundwater position expand the research contents of interior settlement test.
The test method of the seepage flow of the vertical seepage flow of the considerations of present invention uses, sedimentation testing device, using the pre- full of soil sample
And the scheme stood, accurate simulation infiltration and infall process, reduce error.
Seepage flow, the sedimentation testing device of the vertical seepage flow of the considerations of present invention uses, can be in stable settlement column by exhaust valve
Air pressure；Guarantee the normal work of infiltration area.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the top view of sealing ring in the present invention；
Fig. 3 is the cross-sectional view of sealing ring in the present invention；
Fig. 4 is the perspective view of sealing ring in the present invention；
Fig. 5 is the top view of bracket in the present invention；
Fig. 6 is the perspective view of bracket in the present invention.
In figure: 1 is settling leg one with holes；2 be settling leg two with holes；3 be permeable stone；4 be filter paper；5 be bracket；6 be row
Air valve；7 be drain valve；8 be bottom valve.
Specific embodiment
To keep purpose and the technical solution of the embodiment of the present invention clearer, below in conjunction with the attached of the embodiment of the present invention
Figure, is clearly and completely described the technical solution of the embodiment of the present invention.Obviously, described embodiment is of the invention
A part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of being not necessarily to creative work, shall fall within the protection scope of the present invention:
A kind of seepage flow considering vertical seepage flow, sedimentation testing device as shown in Figure 1:, including settling leg with holes 1, sedimentation with holes
Column 22, bracket 5, exhaust valve 6, drain valve 7, bottom valve 8；It is hollow structure in the settling leg with holes 1；It is with holes heavy
It drops and places bracket 5 in column 1, the exhaust valve 6 being connected in it, drain valve 7 is respectively set in the shaft of settling leg 1 with holes；
It is hollow structure in the settling leg with holes 22, the shaft of settling leg 22 with holes is equipped with the bottom for the row being connected in it
Valve 8；Drain valve 7 in settling leg 1 with holes is connected with the bottom valve 8 of settling leg 22 with holes to be detachable；Described
Settling test soil sample is arranged on the top of bracket 5.Settling test soil sample upper and lower side is respectively arranged permeable stone 3；The upper and lower side of permeable stone 3
Filter paper 4 is attached respectively；The edge of permeable stone 3 is equipped with sealing ring；The inner wall of settling leg 1 with holes is upwardly extended to be equipped with bottom end and be carved
Degree.
Consider the seepage flow of vertical seepage flow, the permeability test method of sedimentation testing device, it is characterised in that: test procedure is such as
Under:
1), in one bottom of settling leg with holes and 30cm scale installation drain valve 7 and exhaust valve 6 respectively out, and by cross bracket
It is put into No. I sedimentation column bottom；
2), the permeable stone 3 by one piece with sealing ring is put into settling leg one with holes, and is pushed on bracket, is inserted after being put into filter paper 4
Certain thickness infiltration earth material；
3) water discharging valve 7 and drain tap 6, are closed, is filled into settling leg one with holes and does not cross infiltration earth material height, stands 24
Drain valve 7 is opened after hour to discharge water and be pushed into filter paper and another piece of permeable stone 3 with sealing ring from top；
4) another piece of filter paper 4, is pushed into settling leg one with holes after the water for permeating earth material drains, the position for reading each layer is carved
Degree, record infiltration earth material thickness L, and open exhaust valve and carry out settling test.
5) settling leg one with holes, is recorded after on-test while record settles related data, in settling leg with holes two
The area A of the liquid level of water level to infiltration earth material bottom level H, gathering ground collection water flow q and the permeable stone with sealing ring can
Calculate infiltration coefficient.When experimental design needs simulated groundwater bit line when decanting zone changes, exhaust valve can be closed, by with holes
It fills the water, drained to simulate the situation of change of phreatic line in No. I settling leg in settling leg two.Osmotic coefficient k calculation formula are as follows:
In formula: k is infiltration coefficient, and i is hydraulic gradient, and A is permeable stone area, and L is infiltration earth material thickness, H be liquid level extremely
Permeate earth material height.
The settling test method of the seepage flow provided by the invention for considering vertical seepage flow, sedimentation testing device, test procedure are as follows:
1), the drain valve of settling leg one with holes is connect with two bottom valve of settling leg with holes with hose, closing exhaust valve, and
Cross bracket is put into settling leg one with holes；
2), one piece of permeable stone with sealing ring is put into settling leg one with holes, and is pushed on bracket, inserts one after being put into filter paper
Determine the infiltration earth material of thickness；
3) it is contour and do not had infiltration earth material height that liquid level, is filled into two settling legs, from sedimentation with holes after standing 24 hours
One top of column is pushed into filter paper and another piece of permeable stone with sealing ring, and is pushed into another piece of filter paper；
4), continue to be filled into two settling legs after liquid level is contour and height of water level needed for reaching infall process and read each layer
Position height, carry out settling test in No. I settling leg.
5), press the height of water level that experimental design changes No. II settling leg, record settling test related data with corresponding I,
The height change of water level in No. II settling leg.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (9)
1. a kind of seepage flow for considering vertical seepage flow, sedimentation testing device, it is characterised in that: with holes including settling leg one (1) with holes
Settling leg two (2), bracket (5), exhaust valve (6), drain valve (7), bottom valve (8)；It is in the settling leg with holes one (1)
Hollow structure；Bracket (5) are placed in settling leg one (1) with holes, the shaft of settling leg one (1) with holes is respectively set to be connected in it
Logical exhaust valve (6), drain valve (7)；It is hollow structure, the column of settling leg two (2) with holes in the settling leg with holes two (2)
It is equipped with the bottom valve (8) for the row being connected in it with it；Drain valve (7) and settling leg with holes on settling leg one (1) with holes
The bottom valve (8) of two (2) is detachable is connected；Settling test soil sample is arranged on the top of the bracket (5).
2. seepage flow, the sedimentation testing device according to claim 1 for considering vertical seepage flow, it is characterised in that: described is heavy
The upper end of drop test soil sample is equipped with permeable stone (3).
3. seepage flow, the sedimentation testing device according to claim 1 for considering vertical seepage flow, it is characterised in that: the row
Water valve (7) is located at settling leg one (1) bottom end with holes；Exhaust valve (6) are arranged in the top of drain valve (7).
4. seepage flow, the sedimentation testing device according to claim 2 for considering vertical seepage flow, it is characterised in that: described is saturating
The edge of water stone (3) is equipped with sealing ring；The upper and lower side of permeable stone (3) is respectively equipped with filter paper (4).
5. seepage flow, the sedimentation testing device according to claim 1 for considering vertical seepage flow, it is characterised in that: described with holes
The inner wall of settling leg one (1) is upwardly extended with bottom end equipped with scale.
6. according to right to go 1 to 5 described in consider the seepage flow of vertical seepage flow, the permeability test method of sedimentation testing device,
Be characterized in that: test procedure is as follows:
1) bracket (5), are placed in settling leg one (1) with holes and close exhaust valve (6) and drain valve (7)；The top of bracket (5)
It places permeable stone (3)；Fill certain thickness earth material in permeable stone (3) top；
2), the water filling into settling leg one (1) with holes, until the earth material in step 1) is completely soaked and stands；
3) the interior earth material of settling leg with holes one (1) after standing, is in water suction saturation state；It is internal to open drain valve (7) discharge
Water storage；
4), soak saturation earth material top place another piece of permeable stone (3)；And earth material is filled on the permeable stone (3)；And it reads
The height of water level of settling leg one (1) bottom end with holes；
5) exhaust valve (6), are opened, settling leg one (1) with holes starts the test of simulated groundwater position simulation of infiltration, obtains infiltration system
Number.
7. according to right to go 1 to 5 described in consider the seepage flow of vertical seepage flow, the settling test method of sedimentation testing device,
Be characterized in that: test procedure is as follows:
1) bracket (5), are placed in settling leg one (1) with holes and close exhaust valve (6) and drain valve (7)；The top of bracket (5)
It places permeable stone (3)；Fill certain thickness earth material in permeable stone (3) top；
2), the drain valve (7) on settling leg one (1) with holes is passed through to bottom valve (8) phase of hose and settling leg two (2) with holes
Connection；
3), simultaneously in settling leg one (1) with holes with water filling, soaking step 1 in settling leg two (2) with holes) in earth material；And water level
Not higher than earth material top and stand；Keep settling leg one (1) with holes consistent with the height of water level in settling leg two (2) with holes；
4) the interior earth material of settling leg with holes one (1) after standing, is in water suction saturation state；In the earth material upper end of its saturation state
Another piece of permeable stone (3) is placed, and fills earth material on the permeable stone (3)；
5), continue to continue to keep height of water level consistent with water filling in settling leg two (2) with holes to settling leg one (1) with holes；
6) it, opens drain valve (7) and bottom valve (8)；Settling leg one (1) with holes starts to carry out sedimentation simulated experiment；And it records
The height change of settling test related data and water level in corresponding I, No. II settling leg.
8. according to right to go 6 described in consider the seepage flow of vertical seepage flow, the permeability test method of sedimentation testing device, feature
Be: the time of repose that soaks is 24 hours.
9. according to right to go 7 described in consider the seepage flow of vertical seepage flow, the settling test method of sedimentation testing device, feature
Be: the time of repose that soaks is 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106721.5A CN109164028B (en) | 2018-09-21 | 2018-09-21 | Seepage and settlement test device and method considering vertical seepage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106721.5A CN109164028B (en) | 2018-09-21 | 2018-09-21 | Seepage and settlement test device and method considering vertical seepage |
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| Publication Number | Publication Date |
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| CN109164028A true CN109164028A (en) | 2019-01-08 |
| CN109164028B CN109164028B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811106721.5A Active CN109164028B (en) | 2018-09-21 | 2018-09-21 | Seepage and settlement test device and method considering vertical seepage |
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| CN (1) | CN109164028B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964623A (en) * | 2021-03-23 | 2021-06-15 | 哈尔滨工业大学 | Experimental device for axial permeation of annular tissue engineering scaffold and use method |
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| CN109164028B (en) | 2021-06-15 |
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