CN109001099A - It is a kind of to read to flow the experimental rig and experimental method of moulding native infiltration coefficient for surveying - Google Patents
It is a kind of to read to flow the experimental rig and experimental method of moulding native infiltration coefficient for surveying Download PDFInfo
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- CN109001099A CN109001099A CN201810908713.6A CN201810908713A CN109001099A CN 109001099 A CN109001099 A CN 109001099A CN 201810908713 A CN201810908713 A CN 201810908713A CN 109001099 A CN109001099 A CN 109001099A
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- 238000001764 infiltration Methods 0.000 title claims abstract description 56
- 230000008595 infiltration Effects 0.000 title claims abstract description 56
- 238000000465 moulding Methods 0.000 title description 4
- 238000002474 experimental method Methods 0.000 title description 3
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 239000002689 soil Substances 0.000 claims abstract description 23
- 239000004575 stone Substances 0.000 claims abstract description 16
- 229920005479 Lucite® Polymers 0.000 claims abstract description 14
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000010998 test method Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000002356 single layer Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000008400 supply water 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention discloses a kind of for surveying the experimental rig and test method reading stream and mould native infiltration coefficient.It is big for the native moisture content of stream modeling, the not available feature of instrument is permeated used in traditional soil test, every grade is made of lucite tube, infiltration cup upper cover, infiltration cup lower cover, sealing ring, permeable stone and filter paper；Varying head device includes hose, graded tube, water-storing bottle.The apparatus structure assembly and disassembly is convenient, can the transformation of single layer multilayer, test method is easy to operate, and wall of cup transparent visual, test are efficiently rigorous.
Description
Technical field
The invention belongs to Geotechnical Engineering fields, are more particularly to a kind of for surveying the test read stream and mould native infiltration coefficient
Device and experimental method are primarily adapted for use in the soil test of stream modeling soil.
Background technique
" soil test standard " (GBT50123-1999) provides the various test sides of the basic engineering property of measurement soil
Method mainly uses the physico-mechanical properties of soil on engineer application, density, moisture content, specific gravity, Atterberg Limit including soil；Infiltration
Coefficient, coefficient of consolidation e-p curve and soil strength, above-mentioned test all include sample preparation the step for, it is right but according to practical experience
In general soil, general moisture content is more than 50%, and test is difficult to be made, and cannot carry out next test procedure, for stream modeling soil, is such as blown
It bankets, the streams such as discarded slurry, beach weak soil and river, silt from the bottom of lake mould that native moisture content is all very big, and former testing standard is directed to not yet
Such soil provides test method.
Summary of the invention
To solve in existing " soil test standard " GBT50123-1999 for the physico-mechanical properties test side of stream modeling soil
The vacancy of method, the present invention provides a kind of for surveying the experimental rig and test method reading stream and mould native infiltration coefficient, the device knot
Structure assembly and disassembly is convenient, easy to operate, visual, functional extremely strong.
The technical solution adopted by the present invention are as follows:
It is a kind of to read to flow the experimental rig for moulding native infiltration coefficient, including infiltration cup and varying head device, the infiltration for surveying
Cup is measuring equipment, including lucite tube, permeable stone and filter paper, upper cover (water outlet), lower cover (water inlet), sealing ring.Two
Block permeable stone clamps the main structure of lucite tube composition infiltration cup, and is fixed by the upper cover and lower cover of infiltration cup, permeates cup
Upper cover reserves apopore as water outlet, and apopore is controlled with valve, and lower cover reserves two inlet opening (lower covers as water inlet
The hole A, the hole lower cover B), two water inlets also have valve control, and connection is tightened in the use between upper cover, lower cover and lucite tube,
And sealing ring is set in junction, prevent the permeation effects measurement result of water.Varying head device be survey read apparatus, including hose,
Graded tube, collection bottle.Graded tube is connect by hose with the infiltration hole cup lower cover A, and drain tap is arranged wherein, while using hose
It connects to the hole lower cover B of water bottle and infiltration cup, valve control disengaging water is all arranged in every section of hose.And main valve is set in hose
Door control disengaging water.
Tightening connection can be threaded connection, external screw thread be arranged on the outside of lucite tube, on the inside of upper cover and lower cover in setting
Screw thread.
When installing permeable stone, permeable stone and upper cover, the intermediate placement filter paper of lower cover contact, permeable stone customization size 10 ×
1cm, infiltration coefficient are greater than 10-3cm/s.
Scale bore is stated no more than 1cm, the indexing of scale minimum is 1.0mm, length 2m.
The implementation method that the present invention also provides a kind of to mould the experimental rig of native infiltration coefficient for surveying reading stream, including walk as follows
It is rapid:
(a) Customization Tool: size is customized test instrument as requested, is kept neat and tidy, is deaerated using boiling method
Make pure water.
(b) graded tube water-filling: being put into before soil sample, appropriate pure water is poured into infiltration cup, by the water inlet valve of lower cover
It opens, reserves a small amount of (no less than 2mm scale) pure water in infiltration cup, close the valve in the hole lower cover A, the hole lower cover B.It (utilizes U-shaped
Pipe principle, the pure water having more flow into water supply bottle (water supply water in bottle cannot be empty), it is therefore an objective to the air of discharge infiltration bottom of a cup).
(c) it is packed into sample: test soil sample being packed into infiltration cup, continuous-stable is answered when paying attention to pouring into, is scraped until cup is very useful
Native knife strikes off, and is closed, then cover upper seal with the filter paper of wetting, tightens upper cover.
(d) tested: by the position for being placed in water bottle head height no more than 2m, (head height is according to sample moisture content
Determine), total valve is opened, utilized head height will be full of pure water, close total valve in graded tube；Lower cover A hole valve is opened
(connecting with graded tube) opens simultaneously the valve of apopore, after having water droplet to go out in apopore, records head height (graded tube
Scale) and initial time, interval, which is surveyed, on schedule reads head height and time.
(e) it repeats to test: the initial head height in graded tube is changed, after stable level, repeat above-mentioned examination
It tests 4~5 times.
(f) formula is brought into:
α in formula --- the basal area of varying head pipe
2.3 --- the conversion coefficient of ln and log
L --- seepage paths and specimen height (cm)；
t1、t2, --- it respectively surveys the starting for reading head and terminates time (s)；
H1、H2--- starting and termination head；
Compared with prior art, beneficial effects of the present invention are as follows:
1, production infiltration cup, overcome stream mould native moisture content greatly can not sample preparation the shortcomings that.For orderly being mentioned for soil test
Basic guarantee is supplied.
2 provide it is a kind of for surveying the experimental rig and construction method reading stream and mould native infiltration coefficient, to soil test standard
Supplemented and filled up stream modeling soil test can not blank.
Detailed description of the invention
Fig. 1 is infiltration cup structure schematic diagram
Fig. 2 is multistage infiltration cup structure schematic diagram
Fig. 3 is experimental rig overall structure diagram
It is marked in figure
1 infiltration cup is whole, 2 permeate under cup upper covers, 3 apopores, 4 lucite tubes, 5 infiltration cup lower covers, 6, the hole lower cover A, 7
Cover the hole B, 8 sealing rings, 9 permeable stones, 10 classification connection external spirals, 11 to water bottle, 12 hoses, 13 graded tubes, 14 drain taps,
15 total valves
Specific embodiment
The features of the present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1-3, a kind of for surveying the experimental rig read stream and mould native infiltration coefficient, including infiltration cup 1 and varying head
Device；The infiltration cup 1 is measuring equipment, including lucite tube 4, permeable stone and filter paper 4, upper cover 2, lower cover 5 and sealing ring
8.Wherein two pieces of permeable stones 9 clamp the main structure of the composition infiltration cup 1 of lucite tube 4, and by the upper cover of infiltration cup 12 under
Lid 5 is fixed.
Further, infiltration cup upper cover 2 reserves apopore 3 as water outlet, and lower cover 5 is as reserved two water inlets of water inlet
Hole (hole lower cover A 6, the hole lower cover B 7).
Further, connection is tightened in the use between upper cover 2, lower cover 5 and lucite tube 4, can be threaded connection, has
External screw thread is set on the outside of machine glass tube, internal screw thread is set, and sealing ring 8 is arranged in junction on the inside of upper cover and lower cover, prevents water
Permeation effects measurement result.
Further when installing permeable stone 9, permeable stone 9 contacts intermediate placement filter paper with 2 lower cover 5 of upper cover, and permeable stone 9 is fixed
10 × 1cm of size processed, infiltration coefficient are greater than 10-3cm/s。
The varying head device is to survey read apparatus, including hose 12, graded tube 13, collection bottle 11.
13 internal diameter of graded tube described further is not more than 1cm, and the indexing of scale minimum is 1.0mm, length in 2m or so, by
Hose 12 is connect with the infiltration hole cup lower cover A 6, and drain tap 14 is arranged wherein.
Further, the hole lower cover B 7 of cup is connected to water bottle 11 and permeated with hose 12, and total valve 15 is set in hose 12
Control disengaging water.
It is a kind of to read to flow the experimental rig and method of moulding native infiltration coefficient for surveying, comprising the following steps:
(a) Customization Tool: size is customized test instrument as requested, is kept neat and tidy, is deaerated using boiling method
Make pure water.
(b) 13 water-filling of graded tube: being put into before soil sample, appropriate pure water is poured into infiltration cup 1, by the water inlet valve of lower cover
Door is opened, and is reserved a small amount of (no less than 2mm scale) pure water in infiltration cup 1, is closed the valve in the hole lower cover A, the hole lower cover B.(benefit
With U-tube principle, the pure water having more flows into water supply bottle 11 (cannot be empty to water in water bottle 11), it is therefore an objective to discharge infiltration 1 bottom of cup
Air)
(c) it is packed into sample: test soil sample being packed into infiltration cup 1, continuous-stable is answered when paying attention to pouring into, is scraped until cup is very useful
Native knife strikes off, and is closed, then cover upper seal 8 with the filter paper of wetting, tightens upper cover 2.
(d) it is tested: will be placed in that (head height is aqueous according to sample no more than the position of 2m to 11 head height of water bottle
Rate determines), total valve 15 is opened, utilized head height will be full of pure water, close total valve 15 in graded tube 13；By the hole lower cover A 6
Valve opens (connecting with graded tube 13), opens simultaneously the valve of apopore 3, after having water droplet to go out in apopore 3, records head
Highly (13 scale of graded tube) and initial time, interval, which is surveyed, on schedule reads head height and time.
(e) it repeats to test: the initial head height in graded tube is changed, after stable level, repeat above-mentioned examination
It tests 4~5 times.
(f) formula is brought into:
α in formula --- the basal area of varying head pipe
2.3 --- the conversion coefficient of ln and log
L --- seepage paths and specimen height (cm)；
t1、t2, --- it respectively surveys the starting for reading head and terminates time (s)；
H1、H2--- starting and termination head；
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
The right present invention is disclosed above in the preferred embodiment, and however, it is not intended to limit the invention, any person skilled in the art
Without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified to
With variation equivalent embodiment, but it is all for be detached from technical solution of the present invention content, according to the technical essence of the invention to
Any simple modification, equivalent change and modification that upper embodiment is done, in the range of still belonging to technical solution of the present invention.
Claims (5)
1. a kind of for surveying the experimental rig read stream and mould native infiltration coefficient, it is characterised in that: including infiltration cup (1) and varying head dress
It sets, the infiltration cup (1) is measuring equipment, including lucite tube (4), permeable stone (9), filter paper (4), upper cover (2), lower cover
(5) and sealing ring (8)；The main structure of two pieces of permeable stone (9) clamping composition infiltration cups 1 of lucite tube 4, and by infiltration cup
(1) upper cover (2) and lower cover (5) is fixed, and the infiltration cup upper cover (2) is reserved apopore (3), and apopore is controlled with valve,
Lower cover (5) reserves two inlet openings, and two water inlets also have valve control, the upper cover (2), lower cover (5) and lucite tube
(4) connection is tightened in the use between, and sealing ring (8) are arranged in junction；The varying head device is to survey read apparatus, including hose
(12), graded tube (13) and collection bottle (11), graded tube (13) are connected by hose (12) and an inlet opening of infiltration cup lower cover (5)
Connect, and wherein be arranged drain tap (14), hose (12) connection to water bottle (11) and infiltration cup lower cover (5) another into
Water hole, middle setting total valve (15) of hose (12) control disengaging water.
2. according to claim 1 a kind of for surveying the experimental rig read stream and mould native infiltration coefficient, it is characterised in that: permeable
The intermediate placement filter paper that stone (9) is contacted with upper cover (2), lower cover (5), permeable stone (9) customize 10 × 1cm of size, and infiltration coefficient is big
In 10-3cm/s。
3. according to claim 1 a kind of for surveying the experimental rig read stream and mould native infiltration coefficient, it is characterised in that: described
Graded tube (13) internal diameter is not more than 1cm, and the indexing of scale minimum is 1.0mm, length 2m.
4. according to claim 1 a kind of for surveying the experimental rig read stream and mould native infiltration coefficient, it is characterised in that: lower cover
(5) tightening for the use between lucite tube (4) is connected as being threadedly coupled, and external screw thread is arranged on the outside of lucite tube (4),
Internal screw thread is set on the inside of upper cover (2) and lower cover (5).
5. a kind of for surveying the test method read stream and mould native infiltration coefficient, it is characterised in that: the following steps are included:
(a) Customization Tool: size is customized test instrument as requested, keeps neat and tidy, is deaerated and is made using boiling method
Pure water；
(b) graded tube (13) water-filling: being put into before soil sample, appropriate pure water is poured into infiltration cup (1), by the water inlet valve of lower cover
Door is opened, and is reserved no less than 2mm scale pure water in infiltration cup (1), is closed the valve of (5) two inlet openings of lower cover；
(c) it is packed into sample: test soil sample being packed into infiltration cup (1), continuous-stable is answered when pouring into, until the very useful scraper of cup is scraped
It is flat, it is closed with the filter paper of wetting, then cover upper seal (8), tightens upper cover (2)；
(d) it is tested: the position no more than 2m will be placed in water bottle (11) head height, open total valve (15), utilize water
Grease head highness will be full of pure water in graded tube (13), close total valve (15)；The inlet opening that will be connect in lower cover with graded tube (13)
It opens, opens simultaneously the valve of apopore (3), after thering is water droplet to go out in apopore (3), record the scale of graded tube (13) and rise
Begin the time, interval, which is surveyed, on schedule reads head height and time；
(e) repeat to test: the initial head height in graded tube be changed, after stable level, repeat above-mentioned test 4~
5 times.
(f) formula is brought into:
α in formula --- the basal area of varying head pipe
2.3 --- the conversion coefficient of ln and log
L --- seepage paths and specimen height (cm)；
t1、t2, --- it respectively surveys the starting for reading head and terminates time (s)；
H1、H2--- starting and termination head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908713.6A CN109001099A (en) | 2018-08-10 | 2018-08-10 | It is a kind of to read to flow the experimental rig and experimental method of moulding native infiltration coefficient for surveying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908713.6A CN109001099A (en) | 2018-08-10 | 2018-08-10 | It is a kind of to read to flow the experimental rig and experimental method of moulding native infiltration coefficient for surveying |
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| Publication Number | Publication Date |
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| CN109001099A true CN109001099A (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810908713.6A Pending CN109001099A (en) | 2018-08-10 | 2018-08-10 | It is a kind of to read to flow the experimental rig and experimental method of moulding native infiltration coefficient for surveying |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406373A (en) * | 2018-12-17 | 2019-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Frozen-thawed cycled acts on lower soil body osmotic coefficient measuring instrument and application method |
| CN110018100A (en) * | 2019-04-02 | 2019-07-16 | 中山大学 | A kind of varying head infiltration auto testing instrument |
| CN112683718A (en) * | 2020-12-28 | 2021-04-20 | 重庆大学 | Device and method for measuring content of soil combined water and permeability coefficient |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561921U (en) * | 2009-12-23 | 2010-08-25 | 长沙理工大学 | Varying water head pressure permeameter |
| CN207300823U (en) * | 2017-10-23 | 2018-05-01 | 桂林理工大学 | A kind of seepage consolidation instrument under chemistry-Coupling with Mechanics effect |
| CN108333060A (en) * | 2018-03-27 | 2018-07-27 | 武汉市政工程设计研究院有限责任公司 | The testing machine that claystone shear crack infiltration coefficient develops is measured using steady state method |
| CN108344677A (en) * | 2018-03-20 | 2018-07-31 | 安徽理工大学 | The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously |
| CN108375532A (en) * | 2018-01-08 | 2018-08-07 | 东南大学 | Infiltration experiment device and test method |
-
2018
- 2018-08-10 CN CN201810908713.6A patent/CN109001099A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561921U (en) * | 2009-12-23 | 2010-08-25 | 长沙理工大学 | Varying water head pressure permeameter |
| CN207300823U (en) * | 2017-10-23 | 2018-05-01 | 桂林理工大学 | A kind of seepage consolidation instrument under chemistry-Coupling with Mechanics effect |
| CN108375532A (en) * | 2018-01-08 | 2018-08-07 | 东南大学 | Infiltration experiment device and test method |
| CN108344677A (en) * | 2018-03-20 | 2018-07-31 | 安徽理工大学 | The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously |
| CN108333060A (en) * | 2018-03-27 | 2018-07-27 | 武汉市政工程设计研究院有限责任公司 | The testing machine that claystone shear crack infiltration coefficient develops is measured using steady state method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406373A (en) * | 2018-12-17 | 2019-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Frozen-thawed cycled acts on lower soil body osmotic coefficient measuring instrument and application method |
| CN110018100A (en) * | 2019-04-02 | 2019-07-16 | 中山大学 | A kind of varying head infiltration auto testing instrument |
| CN112683718A (en) * | 2020-12-28 | 2021-04-20 | 重庆大学 | Device and method for measuring content of soil combined water and permeability coefficient |
| CN112683718B (en) * | 2020-12-28 | 2022-02-18 | 重庆大学 | Device and method for measuring content of soil combined water and permeability coefficient |
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Application publication date: 20181214 |