CN209513545U - A kind of experimental provision of field measuring frozen soil infiltration rate - Google Patents
A kind of experimental provision of field measuring frozen soil infiltration rate Download PDFInfo
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- CN209513545U CN209513545U CN201920200915.5U CN201920200915U CN209513545U CN 209513545 U CN209513545 U CN 209513545U CN 201920200915 U CN201920200915 U CN 201920200915U CN 209513545 U CN209513545 U CN 209513545U
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- iron hoop
- experimental provision
- frozen soil
- cover board
- water butt
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to soil permeability coefficient measurement devices, and in particular to a kind of experimental provision of field measuring frozen soil infiltration rate, including water butt, fixed frame, the first iron hoop, the second iron hoop, assist handle and percussion hammer；Water butt makes its aerial, handstand there are two the fixed water butt of fixed frame；First iron hoop diameter is two times of the second iron hoop, and height is identical, and the first iron hoop and the second iron hoop lower edge are equipped with the piercing portion for being pierced into frozen soil；The assist handle includes circular pushing cover board, taps end and connection pushing cover board and the connecting rod for tapping end, the pushing cover board limits annulus far from the first limit annulus of end side nesting setting and second is tapped, first iron hoop can nest into the first limit annulus, and the second iron hoop can nest into the second limit annulus.The utility model of simple structure and strong practicability, convenient for carrying out the measurement of frozen soil infiltration rate in field.
Description
Technical field
The utility model relates to soil permeability coefficient measurement devices, and in particular to a kind of reality of field measuring frozen soil infiltration rate
Experiment device.
Background technique
The infiltration coefficient of field measuring aeration zone unsaturation ravelly ground is the most commonly used is the method for testing pits, monocycle method and bicyclic
Method.Experimental principle is to be filled the water within certain hydrogeological boundary to earth's surface ravelly ground, reaches the water penetrated into
Stablize, is i.e. when the infiltration water of unit time is approximately equal, the principle of Darcy's law is recycled to find out infiltration coefficient (K) value.
(1) it tests pits method, one is dug in the dry ground of surface layer and is tested pits, hole bottom will be higher by phreatic table 3-5m.To interior uniform water filling of testing pits,
The water level in testing pits is set to be higher by hole bottom about 10cm always.Scale is set at hole bottom, to observe underground water position.It finds out in the unit time
The water Q penetrated into from hole bottom, divided by hole floor space F to get Mean velocity of seepage v=Q/F out.When underground water pillar height degree is constant
When (being equal to 10cm), it is believed that water table gradient is bordering on 1, thus K=v.
(2) monocycle method is embedded in an a height of 20cm, diameter at bottom of testing pits and (draws a circle to approve area in iron hoop by the iron hoop of 35.75cm
For 1000cm2).When on-test, with water column in mariotte flask control ring, it is maintained in 10cm height.Test carries out always
Until when penetrating into water Q and immobilizing, so that it may seepage velocity at this time: v=Q/F be calculated as follows.Resulting seepage velocity
The as permeability coefficient of rock (soil) layer.The water percolating capacity in certain period of time (such as every 30min) can be also recorded by system,
Acquire Mean velocity of seepage in each period compilation seepage velocity duration curve figure accordingly.Seepage velocity gradually subtracts at any time
It is small, tend to constant (in horizontal line) until being reduced to, seepage velocity at this time is required permeability coefficient.
(3) bicyclic method is embedded in about 20cm two high at hole bottom, and diameter is respectively the iron hoop of 0.25m and 0.5m, and when test is same
When filled the water in inside and outside iron hoop, and the water column of inner and outer ring is kept to be held at sustained height, is advisable with 0.1m, since outer ring seeps
The effect of contraction of saturating field penetrate into the water of inner ring can only vertical, thus eliminate the error of side seepage, therefore it is than the method for testing pits
It is all high with the precision of monocycle method.
Bicyclic method surveys field coefficient of permeability SK-500 type and tests pits bicyclic water injection test device, and the result of test is closer to practical
Situation.It is all particularly significant using this testing data survey region hydrologic(al) budget and reservoir, irrigated area, canal seepage amount etc.
's.Experimental principle: within certain hydrogeological boundary, being filled the water to earth's surface ravelly ground, reaches the water penetrated into
Stablize, is i.e. when the infiltration water of unit time is approximately equal, the principle of Darcy's law is recycled to find out infiltration coefficient (K) value.?
It cheats bottom and is embedded in about 20cm two high, diameter is respectively the iron hoop of 0.25m and 0.5m, simultaneously toward infusing in inside and outside iron hoop when test
Water, and the water column of inner and outer ring is kept to be held at sustained height, is advisable with 0.1m, made due to the effect of contraction of outer ring infiltration field in
The water of ring vertical can only penetrate into, thus eliminate the error of side seepage, and precision is high.
Existing monocycle, bicyclic infiltration experimental provision are relatively suitable for use in earth's surface ravelly ground, for the frozen soil of Arid-cold regin,
Since its soil property is harder, existing monocycle, bicyclic device are difficult to be embedded in frozen soil layer, therefore frozen soil infiltration rate parametric measurement exists
It is difficult.
Utility model content
It is insufficient that the purpose of the utility model is to overcome drawbacks described above and existence conditions, provides and seeps under a kind of field measuring frozen soil
The experimental provision of rate.Freeze degree research offer equipment support for carrying out frost zone.
The technical solution of the utility model includes: a kind of experimental provision of field measuring frozen soil infiltration rate, including water butt, fixation
Frame, the first iron hoop, the second iron hoop, assist handle and percussion hammer；
There are two the water butts, and the fixed water butt of the fixed frame makes its aerial, handstand；
The first iron hoop diameter is two times of the second iron hoop, and height identical, the first iron hoop and the second iron hoop lower edge
It is equipped with the piercing portion for being pierced into frozen soil；
The assist handle includes circular pushing cover board, taps end and connection pushing cover board and the connecting rod for tapping end,
The pushing cover board can be nested into far from the first limit annulus of end side nesting setting and the second limit annulus, the first iron hoop is tapped
First limit annulus, the second iron hoop can nest into the second limit annulus.
Iron hoop convenient, quickly can be inserted into frozen soil by piercing portion, assist handle and tapped hammer and be used cooperatively, by first,
Second iron hoop nests into the first, second limit annulus of assist handle, hammers the percussion end for tapping assist handle, lower cover into shape with tapping
Plate oppresses the first iron hoop, the second iron hoop is inserted into frozen soil to bottom offset.
Preferably, it is equipped with scale on the inside of first iron hoop and the second iron hoop, convenient for observation water filling height.
Preferably, the connecting rod is equipped with Fixing clamp-seat, and the handle for tapping hammer is caught in the Fixing clamp-seat.Convenient for fixation
Tap hammer.
Preferably, the piercing portion is jagged convex thorn, is conducive to quickly be pierced into soil.
Preferably, the convex thorn is right angled triangle.
It preferably, further include two hoses, the upper end is separately connected water butt, lower end is respectively protruding into the first iron hoop and second
Iron hoop.
Preferably, it is equipped with control valve on two hoses, convenient for control waterflood injection rate.
Preferably, the fixed frame includes two parallel fixed plates and several supporting legs, and screw thread connects on the supporting leg
Connected nut, nut fix fixed Board position, embedded fixed water butt in fixed plate.
Preferably, the supporting leg bottom is equipped with fixing glue, and supporting leg can be inserted into soil, keep fixed frame more steady
It is fixed.
The utility model advantage:
1, the utility model of simple structure and strong practicability, convenient for carrying out the measurement of frozen soil infiltration rate in field.
2, the utility model assist handle and percussion hammer are used cooperatively, and the first, second iron hoop is nested into assist handle
First, second limit annulus hammers the percussion end for tapping assist handle into shape with tapping, pushes cover board and be displaced downwards, the first iron hoop of compressing,
Second iron hoop is inserted into frozen soil.Piercing portion, can it is convenient, quickly will iron hoop be inserted into frozen soil in.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is that the utility model first limits annulus and the second limit annulus location diagram；
Fig. 3 is the convex thorn shape and structure schematic diagram of the utility model；
In figure: water butt -1, fixed frame -2, the first iron hoop -3, the second iron hoop -4, assist handle -5 tap hammer -6, convex
Thorn -7, pushing cover board -8, percussion end -9, connecting rod -10, the first limit annulus -11, the second limit annulus -12, scale -13, Gu
Determine deck -14, hose -15, control valve -16, fixed plate -17, supporting leg -18, nut -19, fixing glue -20.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can various modifications may be made or change, such equivalent forms equally fall within this Shen to the utility model
It please the appended claims limited range.
A kind of experimental provision of field measuring frozen soil infiltration rate as shown in Figs. 1-3, including water butt 1, fixed frame 2, first
Iron hoop 3, the second iron hoop 4, assist handle 5 and percussion hammer 6.
There are two the water butts 1, and the fixed water butt 1 of the fixed frame 2 makes its aerial, handstand；The fixed frame
2 include two parallel fixed plates 17 and several supporting legs 18, and 18 bottom of supporting leg is equipped with fixing glue 20, screw thread on supporting leg 18
Attaching nut 19, fixed 17 position of fixed plate of nut 19, embedded fixed water butt 1 in fixed plate 17.
First iron hoop, 3 diameter is two times of the second iron hoop 4, and height is identical, under the first iron hoop 3 and the second iron hoop 4
Edge is equipped with the piercing portion for being pierced into frozen soil；The piercing portion is jagged convex thorn 7, and convex thorn 7 is right angled triangle.It is described
Scale 13 is equipped on the inside of first iron hoop 3 and the second iron hoop 4.It further include two hoses 15 equipped with control valve 16, the upper end point
Not Lian Jie water butt 1, lower end be respectively protruding into the first iron hoop 3 and the second iron hoop 4.
The assist handle 5 includes circular pushing cover board 8, taps end 9 and connection pushing cover board 8 and the company for tapping end 9
Extension bar 10, the pushing cover board 8 limit annulus 12 far from the first limit annulus 11 of 9 side nesting of end setting and second is tapped, the
One iron hoop 3 can nest into the first limit annulus 11, and the second iron hoop 4 can nest into the second limit annulus 12.In the connecting rod 10
Equipped with Fixing clamp-seat 14, the handle for tapping hammer 6 is caught in the Fixing clamp-seat 14.
In use, 4 sets of the second iron hoop in the first iron hoop 3, and it is made to nest into the second limit annulus 12 and the first limit
Annulus 11 is oppressed the first iron hoop 3 and the second iron hoop 4 is inserted into frozen soil with the continuous percussion end 9 for beaing assist handle 5 of hammer 6 is tapped
In, the convex thorn 7 of 4 lower edge of the first iron hoop 3 and the second iron hoop is conducive to the quick insertion of iron hoop；By the fixing glue 20 of fixed frame 2
Insertion soil is fixed, and water butt is fixed in fixed plate 17, and two hoses 15 are respectively protruding into the first iron hoop 3 and the second iron
Ring 4, the water filling in two iron hoops, and the water column in retaining ring is advisable all in sustained height with 0.1m, is adjusted using control valve 16
Waterflood injection rate observes water level by scale 13.It is observed by certain time interval and penetrates into water.Because infiltration capacity is big when beginning, see
It surveys interval time and wants short, later can be primary by observation in certain time interval such as every 10 minutes, until the unit time penetrates into water
Reach relatively stable, then continue 2~4 hours to terminate to test.
Claims (9)
1. a kind of experimental provision of field measuring frozen soil infiltration rate, which is characterized in that including water butt (1), fixed frame (2),
One iron hoop (3), the second iron hoop (4), assist handle (5) and percussion hammer (6)；
There are two the water butts (1), and the fixed water butt (1) of the fixed frame (2) makes its aerial, handstand；
First iron hoop (3) diameter is two times of the second iron hoop (4), and height identical, the first iron hoop (3) and the second iron hoop
(4) lower edge is equipped with the piercing portion for being pierced into frozen soil；
The assist handle (5) includes circular pushing cover board (8), taps end (9) and connection pushing cover board (8) and tap end
(9) connecting rod (10), the pushing cover board (8) is far from tapping the first limit annulus (11) of end (9) side nesting setting and the
Two limits annulus (12), the first iron hoop (3) can nest into the first limit annulus (11), and the second iron hoop (4) can nest into the second limit
Circle of position ring (12).
2. experimental provision according to claim 1, it is characterised in that: on the inside of first iron hoop (3) and the second iron hoop (4)
It is equipped with scale (13).
3. experimental provision according to claim 1, it is characterised in that: the connecting rod (10) is equipped with Fixing clamp-seat
(14), the handle for tapping hammer (6) is caught in the Fixing clamp-seat (14).
4. experimental provision according to claim 1, it is characterised in that: the piercing portion is jagged convex thorn (7).
5. experimental provision according to claim 4, it is characterised in that: the convex thorn (7) is right angled triangle.
6. experimental provision according to claim 1, it is characterised in that: further include two hoses (15), the upper end connects respectively
Connect water butt (1), lower end is respectively protruding into the first iron hoop (3) and the second iron hoop (4).
7. experimental provision according to claim 6, it is characterised in that: be equipped with control valve on two hoses (15)
(16)。
8. experimental provision according to claim 1, it is characterised in that: the fixed frame (2) includes two parallel fixations
Plate (17) and several supporting legs (18), threaded coupling nut (19) on the supporting leg (18), the fixed fixed plate of nut (19)
(17) position, embedded fixed water butt (1) in fixed plate (17).
9. experimental provision according to claim 8, it is characterised in that: supporting leg (18) bottom is equipped with fixing glue
(20)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920200915.5U CN209513545U (en) | 2019-02-15 | 2019-02-15 | A kind of experimental provision of field measuring frozen soil infiltration rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920200915.5U CN209513545U (en) | 2019-02-15 | 2019-02-15 | A kind of experimental provision of field measuring frozen soil infiltration rate |
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| Publication Number | Publication Date |
|---|---|
| CN209513545U true CN209513545U (en) | 2019-10-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920200915.5U Expired - Fee Related CN209513545U (en) | 2019-02-15 | 2019-02-15 | A kind of experimental provision of field measuring frozen soil infiltration rate |
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| CN (1) | CN209513545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607619A (en) * | 2021-07-08 | 2021-11-05 | 江苏澳墨环境科技有限公司 | Water seepage test device and use method thereof |
-
2019
- 2019-02-15 CN CN201920200915.5U patent/CN209513545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113607619A (en) * | 2021-07-08 | 2021-11-05 | 江苏澳墨环境科技有限公司 | Water seepage test device and use method thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20200215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |