CN206638564U - A kind of monocyclic soil permeability coefficient measure device of constant head - Google Patents
A kind of monocyclic soil permeability coefficient measure device of constant head Download PDFInfo
- Publication number
- CN206638564U CN206638564U CN201720368353.6U CN201720368353U CN206638564U CN 206638564 U CN206638564 U CN 206638564U CN 201720368353 U CN201720368353 U CN 201720368353U CN 206638564 U CN206638564 U CN 206638564U
- Authority
- CN
- China
- Prior art keywords
- pipe
- monocyclic
- constant head
- permeability coefficient
- regulation pipe
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
In a kind of monocyclic soil permeability coefficient measure device of constant head, including regulation pipe, regulation pipe upper and lower opening and lower end insertion ground, regulation pipe side is connected by connecting tube with feed pipe；The connecting tube is provided with adjustment structure, and adjustment structure control feed pipe supplies water into regulation pipe and keeps being in ordinary water head status in regulation pipe.The monocyclic soil permeability coefficient measure device of a kind of constant head provided by the utility model, the regulation pipe of ground is can be inserted into by setting, the feed pipe connected with regulation pipe, pass through quantitative water supply, effectively avoid influence of the head variation for measurement result in measurement process, the various original state soil bodys can be determined simultaneously, are easy to live accurate detection ground infiltration coefficient.
Description
Technical field
It the utility model is related to a kind of detection means of ground physical parameter, and in particular to permeate system to one kind of multiple ground
Several monocyclic method measure devices in situ.
Background technology
Infiltration coefficient is also known as hydraulic conductivity, in isotropic medium.Its definition is under specific potential gradient
Discharge per unit width, characterize complexity of the fluid by pore framework.Hydrogeology and engineering geology in many problems all with
The infiltration coefficient of the soil body is closely related, such as：The mechanical property of the soil body, deformation characteristic etc. exist close all between infiltration coefficient
Relation, therefore, the infiltration coefficient of the measure soil body quickly and accurately have great importance.
The infiltration coefficient of ground determines ground quality, for the needs of quality control, needs standard during highway construction
Really quickly determine soil body osmotic coefficient.Mainly there are constant head test and change in the detection method of existing ground infiltration coefficient at present
Head permeability test, constant head test is mainly used in measuring sand class and containing a small amount of gravel without cohesion in both method of testings
Property soil, variable head permeability test be applied to fine grained soil infiltration coefficient：It is relative in test equipment and operation required for two methods
It is complicated.So the device used at present in existing assay method is that soil sample is fetched into laboratory mostly, hold being packed into experiment
Tested in device, be unfavorable for scene or field and quickly determine the infiltration coefficient of subgrade soils.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of monocyclic soil permeability coefficient measure device of constant head,
It is simple in construction, easy to operate, the various ground in laboratory or field can be carried out with the quick accurate monocyclic ground of constant head and oozed
Saturating coefficient determination.
In order to solve the above technical problems, technical scheme is used by the utility model：
A kind of monocyclic soil permeability coefficient measure device of constant head, including regulation pipe, regulation pipe upper and lower opening and lower end is inserted
Enter in ground, regulation pipe side is connected by connecting tube with feed pipe；The connecting tube is provided with adjustment structure, adjustment structure control
Feed pipe processed supplies water into regulation pipe and keeps being in ordinary water head status in regulation pipe.
The adjustment structure includes being arranged on the water inlet switch in connecting tube and in regulation pipe, and water inlet switch passes through
Connecting rope is connected with foam ball float.
The regulation pipe bottom is tip.Thus facilitate insertion ground, and keep stable.
The caliber of the regulation pipe and feed pipe ratio is 2:1.It is smaller by the way that the diameter of feed pipe is set, in feed pipe
Water-column change become apparent, be easy to pin-point reading.
The upper surface of the regulation pipe and feed pipe is provided with radial platform, and two levels are provided with each radial platform
Bubble, two air levels are in 90 ° of vertical arrangements.Thus facilitate observation adjustment state, make regulation pipe and feed pipe be finally adjusted to
Ground plumbness.
The feed pipe lower end is adjusted by three leveling knobs, supported.Thus the regulation and support of feed pipe are facilitated.
The feed pipe is provided with scale.Thus the water level in feed pipe can be measured in experimentation.
The regulation pipe material is rustless metal, and feed pipe material is transparent material.Regulation pipe is arranged to rustless metal, material
Matter is harder, convenient to insert ground；Feed pipe material is transparent, convenient directly to observe SEA LEVEL VARIATION.
A kind of monocyclic soil permeability coefficient measure device of constant head of the utility model, has following technique effect：
1）, by the way that the regulation pipe up and down for closing is inserted into ground, and regulation pipe is connected with connecting tube, feed pipe, it is sharp
Adjusted with adjustment structure and keep being in ordinary water head status in regulation pipe, this apparatus structure is simple, easy to operate, not only facilitates experiment
Room carries out quick sample, is more beneficial for quickly determining the infiltration coefficient of subgrade soils in the wild, and easy to carry, widely should have
Use prospect.
2）, in teaching, the device can contribute to as instruments used for education student be better understood by infiltration coefficient measure it is former
Reason.In production, the device can be used in Underground water resources calculation, diving dynamic prediction and related to underground water all kinds of grind
In studying carefully, purposes is very extensive.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the scheme of installation of air level in the utility model.
Fig. 3 is the arrangement schematic diagram of leveling knob in the utility model.
In figure：Regulation pipe 1, connecting tube 2, feed pipe 3, adjustment structure 4, water inlet switch 4-1, connecting rope 4-2, foam ball float
4-3, radial platform 5, air level 6, leveling knob 7, scale 8.
Embodiment
As shown in Figure 1-2, the monocyclic soil permeability coefficient measure device of a kind of constant head, including stainless steel regulation pipe 1, regulation
The upper and lower opening of pipe 1, the bottom of regulation pipe 1 are the tip with wedging bit, are so easy to that regulation pipe 1 is pressed into soil when operation
In.The side of regulation pipe 1 is connected by connecting tube 2 with feed pipe 3.The material of connecting tube 2 is plastics, in connecting tube 2 among one section be
Folding telescopic tube, so it can pass through connecting tube 2 itself when regulation pipe 1 and the relative position difference of feed pipe 3
Adjust and keep the connection of above-mentioned two body, increase flexibility.The material of feed pipe 3 uses PMMA, it is ensured that transparency meets to see
Examine demand.In order that being in ordinary water head status in regulation pipe 1, adjustment structure 4 is provided with connecting tube 2, adjustment structure 4 includes peace
Water inlet switch 4-1 in connecting tube 2 and in regulation pipe 1, water inlet switch 4-1 is countersunk head block of the upper end with sealing gasket,
The gravity of countersunk head block is less than foam ball float 4-3 buoyancy.Water inlet switch 4-1 is limited by the spacing ring of the delivery port of connecting tube 2
Position, water inlet switch 4-1 upper ends are connected by connecting rope 4-2 with foam ball float 4-3.When the water level decreasing in regulation pipe 1, foam
Ball float 4-3 declines, and water inlet switch 4-1 declines therewith, and the delivery port of connecting tube 2 is opened, and feed pipe 3 is intake into regulation pipe 1, is steeped
Foam ball float 4-3 rises, and after reaching setting position, water inlet switch 4-1 is limited that ring is spacing, and the delivery port of connecting tube 2 is blocked,
Stop intaking to regulation pipe 1.In the process, it can control and adjusted during experiment by adjusting connecting rope 4-2 length
Water in pipe 1, different head values is made in measurement DIFFERENT SOIL time control.
The caliber ratio of the regulation pipe 1 and feed pipe 3 is 2:1.The specification of regulation pipe 1 is high about 50cm, and diameter is about
36cm face areas 1017.88cm2, the water-column so in feed pipe 3, which changes, to be become apparent, and is easy to pin-point reading.
The upper surface of the regulation pipe 1 and feed pipe 3 is provided with radial platform 5, and two water are provided with each radial platform 5
Quasi- bubble 6, two air levels are in 90 ° of vertical arrangements.Two air levels are convenient to adjust level by regulation pipe 1 and feed pipe 3, and adjusts
The convenient offer force section of radial platform 5 on pipe 1, regulation pipe 1 is smoothly pressed into ground.
The lower end of feed pipe 3 is adjusted by three leveling knobs 7, supported.Three leveling knobs are respectively positioned on same same
On the circumference of heart circle, adjacent leveling knob to the angle between the line in the center of circle is into 60 °.
The feed pipe 3 is provided with scale 8.The so convenient Real Time Observation in experimentation simultaneously records.
Operation principle and process：
During test, first regulation pipe 1 is pressed into the soil body to be tested, during press-in, observation top air level 6, to ensure iron
In the press-in soil body that matter standpipe can be vertical.Then feed pipe 3 is placed on leveling knob（7）Above, adjustable length is used
Connecting tube 2 regulation pipe 1 and feed pipe 3 are connected.By adjusting leveling knob 7, the air level at the transparent top of feed pipe 3 is observed
So that transparent organic matter standpipe is seated to level.
After assembling whole equipment, certain scale slowly is added water into regulation pipe 1 and feed pipe 3, typically makes tune
Water-column in section pipe 1 maintains 0.1m（Recommend）.After starting measurement, every certain time interval, pass through feed pipe 3
Graduated scale 8 in side wall is observed and records the water-column in feed pipe 3.Because the infiltration capacity started is big, observing interval
It is short, it can be observed once according to certain time interval such as 5min later, until infiltration rate slows down, observation time can be extended
To 10min, 15min, 30min until the unit interval, which penetrates into water, reaches relatively stable, can terminate to try in continuity 2-4 hours
Test.
Measured data, which are substituted into Darcy's law, can calculate the infiltration coefficient of the soil body to be measured：
K=Q/（A·I）
In formula：Q --- steady seepage flow（m3/min）
K --- infiltration coefficient（m/min）
A --- irony standpipe internal diameter area（m2）
I --- hydraulic gradient.
Claims (8)
- A kind of 1. monocyclic soil permeability coefficient measure device of constant head, it is characterised in that：Including regulation pipe（1）, regulation pipe（1）On In under shed and lower end insertion ground, regulation pipe（1）Side passes through connecting tube（2）With feed pipe（3）Connection；The connecting tube （2）It is provided with adjustment structure（4）, adjustment structure（4）Control feed pipe（3）To regulation pipe（1）Interior water supply simultaneously keeps regulation pipe （1）It is interior to be in ordinary water head status.
- A kind of 2. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The tune Nodule structure（4）Including installed in connecting tube（2）Go up and be located at regulation pipe（1）Interior water inlet switch（4-1）, water inlet switch（4-1） Pass through connecting rope（4-2）With foam ball float（4-3）Connection.
- A kind of 3. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The tune Section pipe（1）Bottom is tip.
- A kind of 4. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The tune Section pipe（1）With feed pipe（3）Caliber ratio be 2:1.
- A kind of 5. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The tune Section pipe（1）And feed pipe（3）Upper surface be provided with radial platform（5）, each radial platform（5）On two air levels are installed （6）, two air levels are in 90 ° of vertical arrangements.
- A kind of 6. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The confession Water pipe（3）Lower end passes through three leveling knobs（7）Regulation, support.
- A kind of 7. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The confession Water pipe（3）It is provided with scale（8）.
- A kind of 8. monocyclic soil permeability coefficient measure device of constant head according to claim 1, it is characterised in that：The tune Section pipe（1）Material is rustless metal, feed pipe（3）Material is transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368353.6U CN206638564U (en) | 2017-04-10 | 2017-04-10 | A kind of monocyclic soil permeability coefficient measure device of constant head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368353.6U CN206638564U (en) | 2017-04-10 | 2017-04-10 | A kind of monocyclic soil permeability coefficient measure device of constant head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206638564U true CN206638564U (en) | 2017-11-14 |
Family
ID=60248058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720368353.6U Expired - Fee Related CN206638564U (en) | 2017-04-10 | 2017-04-10 | A kind of monocyclic soil permeability coefficient measure device of constant head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206638564U (en) |
-
2017
- 2017-04-10 CN CN201720368353.6U patent/CN206638564U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588796B (en) | A kind of device of accurate quick measure soil permeability coefficient | |
| US11300638B2 (en) | Laboratory test device for permeation grouting of impermeable material | |
| CN206756653U (en) | Determine head and varying head soil permeability coefficient measure combination unit | |
| CN103868838B (en) | Soil body osmotic coefficient measuring system | |
| CN204315152U (en) | Phreatic well flood-pot-test device | |
| CN106706492A (en) | Penetration device for researching porous medium whole-zone penetration mechanism | |
| CN109211749A (en) | The laboratory testing rig of tunnel-liner infiltration coefficient and soil body pore pressure response under measurement fluctuation water level | |
| CN106644890A (en) | Device for measuring soil sample permeability coefficient in indoor soil engineering test | |
| CN104458528A (en) | Method and device for measuring field slope earth surface infiltration performance and permeability coefficient | |
| CN109374508A (en) | A kind of tailing row's infiltration system silting imitative experimental appliance and experimental method | |
| CN206161492U (en) | Can realize becoming penetrant unit of water pressure effect | |
| CN204649589U (en) | A kind of undisturbed soil sample osmotic coefficient investigating device | |
| CN117854239A (en) | Rain-falling landslide monitoring and early warning method and system | |
| CN115598040A (en) | Device and method for measuring two-way permeability coefficient of pore medium | |
| KR102225911B1 (en) | Falling head test method and apparatus for measuring saturated hydraulic conductivity of soils | |
| CN104020096A (en) | Device and method for detecting pore pressure by U-shaped pipe hydraulic differential rope method | |
| CN213633102U (en) | Constant head geotechnical permeability tester | |
| CN106840990A (en) | A kind of achievable permeability apparatus for becoming effect of water pressure | |
| CN206638564U (en) | A kind of monocyclic soil permeability coefficient measure device of constant head | |
| CN208621474U (en) | A kind of surface layer aeration zone soil resistance detection device | |
| CN110987507A (en) | Buoyancy model test device | |
| CN107064434B (en) | Device for measuring effective migration distance of air foam between wells | |
| CN109342296B (en) | Experimental device for survey unsaturated soil osmotic coefficient curve | |
| CN106525682B (en) | A kind of method and experimental provision of in-site detecting deposit vertical hydraulic conductivity | |
| CN206431025U (en) | It is used for the device for measuring soil sample infiltration coefficient in a kind of laboratory soil test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20180410 |