CN106841003A - Portable many depth of penetration coefficient field measurement apparatus - Google Patents
Portable many depth of penetration coefficient field measurement apparatus Download PDFInfo
- Publication number
- CN106841003A CN106841003A CN201710060000.4A CN201710060000A CN106841003A CN 106841003 A CN106841003 A CN 106841003A CN 201710060000 A CN201710060000 A CN 201710060000A CN 106841003 A CN106841003 A CN 106841003A
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- Prior art keywords
- steel pipe
- current signal
- resistance
- measurement apparatus
- field measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 20
- 230000035515 penetration Effects 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000000518 rheometry Methods 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 6
- 230000008595 infiltration Effects 0.000 description 12
- 238000001764 infiltration Methods 0.000 description 12
- 239000002689 soil Substances 0.000 description 10
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000007903 penetration ability Effects 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses the portable many depth of penetration coefficient field measurement apparatus of one kind, including steel pipe main body, it is characterised in that：Described steel pipe main body is made up of the hollow steel tube of front and rear mutual socket；It is socketed in outermost first steel pipe and is provided with detachable instrument board, described instrument board is built with timer, current signal converter；It is provided with water level current signal collector in described steel pipe main body, described water level current signal collector is made up of the resistance that is serially connected, power supply, power switch, ammeter, current signal collector, sealed cistern wired in series；The current changing signal of described current signal collector collection is transferred to current signal converter, current changing signal is converted to timing trigger signal triggering timing device read access time data by described current signal converter, and permeability is drawn by the Volume Changes relation of time and water trough inner water.The present invention is simple to operate, portable, and function is strong and the characteristics of low cost.
Description
Technical field
The present invention relates to a kind of geotechnological in-situ test device, more particularly to a kind of device of in-site measurement infiltration coefficient.
Background technology
Infiltration coefficient is an index of combined reaction soil body penetration ability, and the correct determination of its numerical value has to infiltration calculation
Very important meaning.Its numerical value can be measured in laboratory and obtained, it is also possible to carried out in-situ test at the construction field (site) and obtained
Arrive.
The patent of Publication No. 103091229A is on-site testing device, but because its structure is not sufficiently stable, sealing effect
It is difficult to ensure that, measurement result may not reach expected requirement.
The patent of Publication No. 104155229A is portable soil top layer vertical permeability experimental facility in situ, but the dress
Put structure complex, it is complex in terms of operation and carrying.
The patent of Publication No. 103344542A is indoor test device, room with the patent of Publication No. 103868838A
The method that interior experiment is generally fetched earth using original position, tests filling, the experiment soil body close to scene packing, mould are made to hit the mode such as real
Intend original position soil Penetration Signature, it is mainly, and convenient test, measurement means are relatively advanced, but by the soil nature matter after disturbance always
Change a little, therefore the infiltration coefficient for obtaining can have differences with the infiltration coefficient of live soil.Therefore acquired results can not be anti-
Reflect the truth of the soil body.
The content of the invention
In view of the defect that prior art is present, of the invention to propose a kind of device of on-site measurement infiltration coefficient, its purpose exists
In the infiltration coefficient on measurement different depth stratum.The present apparatus is simple to operate, portable, and function is strong and the characteristics of low cost.
To reach above-mentioned purpose, solution of the invention is：
A kind of portable many depth of penetration coefficient field measurement apparatus, including steel pipe main body, it is characterised in that：Described steel
Pipe main body is telescopic structure, is made up of the hollow steel tube of front and rear mutual socket；It is socketed on outermost first steel pipe and sets
There is detachable instrument board, described instrument board is built with timer, current signal converter；It is socketed in most inner side least significant end steel
It is testing tube to manage, and the testing tube is made up of pile crown with test body, and described pile crown can by screw thread with the test body
Dismounting connection；Described test tube wall is provided with through hole, and filter cover is provided with described through hole；In described steel pipe main body
It is provided with water level current signal collector, described water level current signal collector is by the resistance that is serially connected successively, power supply, power supply
Switch, ammeter, current signal collector, sealed cistern by wired in series constitute, described sealed cistern be located at through hole with
Between pile crown；Described through hole is provided with conduit and is connected with sealed cistern, and described sealed cistern bottom is provided with sluicing switch, described
Sealed cistern be provided with from top to bottom first resistor tie point, second resistance tie point, 3rd resistor tie point and the 4th electricity
Resistance tie point, resistance is electrically connect between described adjacent ohmic connection points, and first resistor, the second electricity are followed successively by from top to bottom
Resistance, 3rd resistor and the 4th resistance, the other end and power electric connection of described the 4th resistance；Described current signal collector
The current changing signal of collection is transferred to current signal converter, and described current signal converter changes current changing signal
For timing trigger signal triggering timing device while read access time data.
Further, described power supply, power switch, ammeter, first resistor, second resistance, 3rd resistor and the 4th electricity
Resistance is arranged in described instrument board.
Further, the wire is water proof wire.
Further, connection can be threadably secured between adjacent hollow steel tube.
Further, described hollow steel tube inwall is being provided with steel pipe lattice gear away from pile crown end, and described steel pipe lattice gear is
Annular shape, described steel pipe lattice gear limitation steel pipe excess shrinkage, influences it normally to use.
Further, described sealed cistern is plastic material.
Further, the pile crown sets water-stop glue band with test body junction.
Further, the first described steel tube end part is provided with cushion block.
Further, soil permeability is determined using portable many depth of penetration coefficient field measurement apparatus of the present invention
The method of coefficient is：
When using, power switch is closed, by t0After time, the water level in sealed cistern reaches the first tie point, electricity
Road is connected, and first resistor, second resistance, 3rd resistor and the 4th resistance are started working, and ammeter begins with reading, current signal
The current changing signal that current signal collector is transmitted is converted into timing trigger signal triggering timing device 5 and starts work by converter
Make.
Further, as the seepage water in sealed cistern 7 increases, the water level of sealed cistern begins to ramp up, per lifting height h
One resistance of short circuit, the electric current of circuit changes, the time point t that timer record electric current changes1,t2,...,tn, it is fixed
Adopted Δ t is the difference at two neighboring time point, and the cross-sectional area of sealed cistern 7 is S.
Further, according to the data calculation permeability coefficient for obtaining, each stage infiltration coefficient can be respectively obtained
Further, average infiltration coefficient is calculated
Compared with prior art, beneficial effects of the present invention are：
1st, the present invention has retractor device, and volume accounting is small when not using, easy to carry.
2nd, the present invention is simple to operate, and most workmen is operable, it is only necessary to record data, and substituting into formula can obtain
To infiltration coefficient.
3rd, the present invention is in-situ test experimental provision, and the soil permeability coefficient that in-site measurement is obtained has more authenticity.
4th, the present invention can measure the seepage coefficient of different depth soil, and the data volume of acquisition is bigger.
5th, low cost of manufacture of the invention, with stronger generalization.
Brief description of the drawings
Fig. 1 is device overall diagram；
Fig. 2 is device Local map one；
Fig. 3 is device expanded view；
Fig. 4 is device Local map two；
Fig. 5 is device Local map three；
Fig. 6 is device Local map four；
Fig. 7 is equipment circuit connection figure.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
In figure, 1. instrument board, 2. cushion block, 3. power switch, 4. ammeter, 5. timer, 6. steel pipe main body, 7. seals water
Groove, 8. through hole, 9. filter cover, 10. pile crown, 11. steel pipe lattice gear, 12. first steel pipes, 13. wires, 14. 3rd resistors, 15. electricity
Stream signal collector, 16. current signal converters, 17. the 4th resistance, 18. test bodys, 19. first resistor tie points, 20.
Second resistance tie point, 21. 3rd resistor tie points, 22. the 4th ohmic connection points, 23. first resistors, 24. second resistances.
A kind of portable many depth of penetration coefficient field measurement apparatus, including steel pipe main body 6, it is characterised in that：Described
Steel pipe main body 6 is telescopic structure, is made up of the hollow steel tube of front and rear mutual socket；It is socketed in outermost first steel pipe 12
Detachable instrument board 1 is provided with, described instrument board 1 is built with timer 5, current signal converter 16；It is socketed in most interior
Least significant end steel pipe in side is testing tube, and the testing tube is made up of pile crown 10 with body 18 is tested, described pile crown 10 and the survey
Test tube body 18 is detachably connected by screw thread；The described side wall of test body 18 is provided with through hole 8, is provided with described through hole 8
Filter cover 9；Be provided with water level current signal collector in described steel pipe main body 6, described water level current signal collector 15 by
The resistance being serially connected successively, power supply, power switch 3, ammeter 4, current signal collector 15, sealed cistern 7 passes through wire
13 are composed in series, and described sealed cistern 7 is located between through hole 8 and pile crown 10；Described through hole 8 is provided with conduit and sealed cistern
7 connections, the described bottom of sealed cistern 7 is provided with sluicing switch, and described sealed cistern 7 is provided with first resistor company from top to bottom
Contact 19, second resistance tie point 20, the ohmic connection points 22 of 3rd resistor tie point 21 and the 4th, described adjacent resistance connect
Resistance is electrically connect between contact, first resistor 23, second resistance 24, the resistance of 3rd resistor 14 and the 4th are followed successively by from top to bottom
17, the other end and power electric connection of described the 4th resistance 17；The curent change of the described collection of current signal collector 15
Current changing signal is converted to timing triggering by signal transmission to current signal converter 16, described current signal converter 16
Signal triggering timing device 5 is while read access time data.
Described power supply, power switch 3, ammeter 4, first resistor 23, second resistance 24, the electricity of 3rd resistor 14 and the 4th
Resistance 17 is arranged in described instrument board 1.
The wire 23 is water proof wire.
Connection can be threadably secured between adjacent hollow steel tube.
Described hollow steel tube inwall is being provided with steel pipe lattice gear 11 away from the end of pile crown 10, and described steel pipe lattice gear 11 is annulus
Shape.
Described sealed cistern 7 is plastic material.
The pile crown 10 sets water-stop glue band with test body 18 junction.
The described end of the first steel pipe 12 is provided with cushion block 2.
The distance between every two neighboring ohmic connection points of setting are h, and the cross-sectional area of sealed cistern 7 is S.
During work, power switch 3 is closed, by t0After time, the water level in sealed cistern 7 reaches the first tie point
19, circuit is connected, and first resistor 23, second resistance 24, the resistance 17 of 3rd resistor 14 and the 4th are started working, and ammeter 4 starts
There is reading, current signal converter 17 passes in timer 5 signal that current signal collector 16 is transmitted, and timer 5 starts
Work.
As the seepage water in sealed cistern 7 increases, the water level of sealed cistern 7 begins to ramp up, per lifting height h short circuits one
Individual resistance, the electric current of circuit changes, the time point t that the record current of timer 5 changes1,t2,...,tn, define Δ t
It is the difference at two neighboring time point.
According to the data calculation permeability coefficient for obtaining, each stage infiltration coefficient can be respectively obtained
Calculate average infiltration coefficient
Embodiment described above is only to absolutely prove the preferred embodiment that patent of the present invention is lifted, the protection of this patent
Scope not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of this patent, at this
Within the protection domain of patent.The protection domain of this patent is defined by claims.
Claims (8)
1. a kind of portable many depth of penetration coefficient field measurement apparatus, including steel pipe main body (6), it is characterised in that：Described
Steel pipe main body (6) is telescopic structure, is made up of the hollow steel tube of front and rear mutual socket；It is socketed in outermost first steel pipe
(12) detachable instrument board (1) is provided with, described instrument board (1) is built with timer (5), current signal converter
(16)；It is testing tube to be socketed in most inner side least significant end steel pipe, and the testing tube is made up of pile crown (10) with test body (18), institute
The pile crown (10) stated is detachably connected with test body (18) by screw thread；Described test body (18) side wall is provided with
Through hole (8), filter cover (9) is provided with described through hole (8)；The collection of water level current signal is provided with described steel pipe main body (6)
Device (15), described water level current signal collector is by the resistance that is serially connected successively, power supply, power switch (3), ammeter
(4), current signal collector (15), sealed cistern (7) is composed in series by wire (13), and described sealed cistern (7) is located at
Between through hole (8) and pile crown (10)；Described through hole (8) is provided with conduit and is connected with sealed cistern (7), described sealed cistern
(7) bottom is provided with sluicing switch, and described sealed cistern (7) is provided with first resistor tie point (19), the second electricity from top to bottom
Resistance tie point (20), 3rd resistor tie point (21) and the 4th ohmic connection points (22), described adjacent ohmic connection points it
Between electrically connect resistance, first resistor (23), second resistance (24), 3rd resistor (14) and the 4th resistance are followed successively by from top to bottom
(17), the other end and power electric connection of the 4th described resistance (17)；The electricity of described current signal collector (15) collection
Rheology signal transmission changes current changing signal to current signal converter (16), described current signal converter (16)
It is timing trigger signal triggering timing device (5) while read access time data.
2. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：Described electricity
Source, power switch (3), ammeter (4), first resistor (23), second resistance (24), 3rd resistor (14) and the 4th resistance (17)
It is arranged in described instrument board (1).
3. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：The wire
(13) it is water proof wire.
4. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：Adjacent is hollow
Connection can be threadably secured between steel pipe.
5. portable many depth of penetration coefficient field measurement apparatus according to claim 4, it is characterised in that：Described is hollow
Steel pipe inner wall is being provided with steel pipe lattice gear (11) away from pile crown (10) end, and described steel pipe lattice gear (11) are annular shape.
6. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：Described sealing
Tank (7) is plastic material.
7. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：The pile crown
(10) water-stop glue band is set with test body (18) junction.
8. portable many depth of penetration coefficient field measurement apparatus according to claim 1, it is characterised in that：Described first
Steel pipe (12) end is provided with cushion block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060000.4A CN106841003B (en) | 2017-01-24 | 2017-01-24 | Portable multi-depth permeability coefficient field measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060000.4A CN106841003B (en) | 2017-01-24 | 2017-01-24 | Portable multi-depth permeability coefficient field measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106841003A true CN106841003A (en) | 2017-06-13 |
| CN106841003B CN106841003B (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710060000.4A Active CN106841003B (en) | 2017-01-24 | 2017-01-24 | Portable multi-depth permeability coefficient field measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116773408A (en) * | 2023-07-06 | 2023-09-19 | 星辰利源水利水电工程有限公司 | Seepage real-time detection system for hydraulic engineering |
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|---|---|---|---|---|
| SU1679290A1 (en) * | 1988-07-20 | 1991-09-23 | Краснодарский политехнический институт | Device for determining structural parameters of porous materials |
| DE4041960A1 (en) * | 1990-12-24 | 1992-07-02 | Forschzent Bodenfruchtbarkeit | Automated in-situ measurement of infiltration characteristic esp. of soil - measuring times for partial vols. of infiltration liquid to penetrate infiltrated material |
| US5591898A (en) * | 1995-10-12 | 1997-01-07 | Modern Controls, Inc. | Method for measuring material permeability characteristics |
| FR2836228A1 (en) * | 2002-02-21 | 2003-08-22 | Inst Francais Du Petrole | Evaluating physical parameters, e.g. absolute permeability and porosity of naturally or artificially fragmented underground rock deposit, involves using sampled fragments or cuttings |
| CN1441898A (en) * | 2000-05-30 | 2003-09-10 | 结构监测系统有限公司 | Apparatus and method for measurement of permeability or strain in permeable materials |
| US20050177309A1 (en) * | 2002-05-13 | 2005-08-11 | Ramanathan Sri Ranjan | Method and probe for measuring hydraulic conductivity of soil |
| CN102323196A (en) * | 2011-05-23 | 2012-01-18 | 申坤 | Design manufacturing and application of triaxial penetration tester |
| CN103278437A (en) * | 2013-05-29 | 2013-09-04 | 浙江大学 | Simulation test device for muddy water shield mud membrane formation process |
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-
2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116773408A (en) * | 2023-07-06 | 2023-09-19 | 星辰利源水利水电工程有限公司 | Seepage real-time detection system for hydraulic engineering |
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| Publication number | Publication date |
|---|---|
| CN106841003B (en) | 2023-07-14 |
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