CN204789260U - A one -dimensional infiltration appearance for testing soil body osmotic coefficient - Google Patents
A one -dimensional infiltration appearance for testing soil body osmotic coefficient Download PDFInfo
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- CN204789260U CN204789260U CN201520420190.2U CN201520420190U CN204789260U CN 204789260 U CN204789260 U CN 204789260U CN 201520420190 U CN201520420190 U CN 201520420190U CN 204789260 U CN204789260 U CN 204789260U
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- China
- Prior art keywords
- base
- sleeve
- exhaust passage
- cutting ring
- permeable stone
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- 239000002689 soil Substances 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 230000003204 osmotic effect Effects 0.000 title claims abstract description 13
- 230000008595 infiltration Effects 0.000 title abstract description 12
- 238000001764 infiltration Methods 0.000 title abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 238000009736 wetting Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an one -dimensional infiltration appearance for testing soil body osmotic coefficient, it includes sleeve, pressure lid, base, cutting ring, wherein pressure lid through the hasp setting on the sleeve, pressure is covered and is equipped with the wash port, the graduated flask is connected to the wash port, the sleeve passes through bolted connection with the base, the cutting ring setting is provided with O type elastic tape hermetic seal between cutting ring and the base in the sleeve, set up inhalant canal and exhaust passage on the base, it has the stone cistern of permeating water to open on the base, water source, exhaust passage connection water -collection device are connected to inhalant canal, exhaust passage and the stone cistern that permeates water intercommunication, inhalant canal, the utility model discloses a simple structure, manufacturing convenience can be carried out the high accuracy of different soil body material osmotic coefficients and surveyd.
Description
Technical field
The utility model relates to a kind of one dimension permeameter for testing soil body osmotic coefficient, belongs to Geotechnical Engineering Experimental Method in Laboratory field.
Background technology
The perviousness of the soil body refers to the character of water seepage flow in soil pores with pressure head difference.Infiltration coefficient is an important physical mechanical index of the permeance property weighing the soil body, also be used to the speed analyzing ground consolidation settlement simultaneously, estimate the seepage and permeation stability of subsoil, earth dam and high-filled subgrade, and Water And Drainage System Design, construction are selected materials, the basic parameter that artificial dewatering and foundation stabilization design etc. are required.
For various soil mass, infiltration coefficient difference is very large, and its variation range is from 10
-1cm/s is to 10
-8cm/s, for infiltration coefficients such as clays 10
-6the material of below cm/s, when adopting the test of traditional penetration instrument, when measures of preventing water complexity, mounting cost, the utility model adopts the sleeve base connected system after improved, overcome above deficiency, the measurement of infiltration coefficient under hyperbaric environment can be adapted to, obtain test findings fast, shorten the test period, and test accuracy is reliable.
Summary of the invention
The utility model object be to provide a kind of can the one dimension permeameter of simple and convenient test soil body osmotic coefficient, comprise pressure cover 1, sleeve 4, cutting ring 5, base 7, wherein pressure cover 1 is arranged on sleeve 4 by snap close 2, pressure cover 1 is provided with osculum 13, osculum 13 connects graduated cylinder, sleeve 4 is connected by bolt 11 with base 7, base 7 is arranged intake tunnel 10 and exhaust passage 6, base 7 has permeable stone cistern 8, intake tunnel 10, exhaust passage 6 is communicated with permeable stone cistern 8, cutting ring 5 to be arranged in sleeve 4 and to be positioned at above permeable stone cistern 8, with the O type rubber band 9 pressurization sealing smearing vaseline between cutting ring 5 and base 7, intake tunnel 10 connects water source, exhaust passage 6 connects water leg, for exhaust and collection water outlet,
Described pressure cover 1 is connected for providing the counter-force of resisting buoyancy by snap close 2 with sleeve 4.
Described base 7 is provided with the annular groove 14 for placing O type rubber band 9.
Described intake tunnel 10 and exhaust passage 6 are provided with valve.
Described cutting ring 5 is inverted and is embedded in sleeve 4, and sleeve 4 internal diameter is consistent with cutting ring 5 external diameter.
During use, in the permeable stone cistern 8 of base 7, place moistening permeable stone, and place filter paper above it, then be placed on base 7 by the cutting ring 5 installing soil sample, soil sample is alignd with permeable stone cistern 8, and soil sample placing height is 2-4cm, soil sample places adjustment permeable stone 12 again, and thickness is 0-2cm; Result after adjustment is the overall height of soil sample in cutting ring 5 and adjustment permeable stone 12 is 4cm, and adjustment permeable stone 12 places filter paper, then on filter paper, place the wetting permeable stone of one deck; Sleeve 4 to be carefully enclosed within cutting ring 5 and to be fixed on base 7, finally tighting a bolt 11; Open the valve that intake tunnel 10 is other, pass into water by intake tunnel 10, the permeable stone of water in permeable stone cistern 8, flows out and takes away the air in base 7 from exhaust passage 6, when no longer including bubble spilling in exhaust passage 6, shut the valve on exhaust passage 6; Water permeable stone from the permeable stone cistern of base 7 from bottom to top permeates to soil sample 15 to be measured afterwards, be full of whole device gradually, start to survey initial head height and initial time in record water source device when osculum 13 there are flowing out, interval record head and the change of time on schedule, and survey note outlet temperature.By water source device middle water level conversion height, survey note head and time variations again after treating stable level, revision test 5-6 time.When difference starts the infiltration coefficient that measures under head when allowing in difference range, terminate test.Infiltration coefficient computing formula is:
（a）
A--water source device basal area in formula
The conversion coefficient of 2.3-ln and log
L-soil sample height
T
1, t
2-be respectively the initial sum termination time of surveying and reading head
H-
1, H
2-initial sum stops head.
The utility model has the following advantages:
1, stagnant water effect good, install simple and direct;
2, can test the infiltration coefficient of differing heights sample, dirigibility is good;
3, equipment is cheap, and use standard osmotic cutting ring, current infiltration coefficient method of testing used is all applicable, is adapted at promoting in engineering.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model 2cm soil sample test using state schematic diagram
Fig. 3 is the utility model 4cm soil sample test using state schematic diagram
Fig. 4 is the utility model middle sleeve structural representation;
Fig. 5 is understructure schematic diagram in the utility model;
In figure: 1-pressure cover; 2-snap close; 3-permeable stone; 4-sleeve; 5-cutting ring; 6-exhaust passage; 7-base; The permeable stone cistern of 8-; 9-O type rubber band; 10-intake tunnel; 11-bolt; 12-adjusts permeable stone; 13-osculum; 14-groove; 15-soil sample to be measured.
Embodiment
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: as shown in Fig. 1,4,5, this comprises pressure cover 1, sleeve 4, cutting ring 5, base 7 for the one dimension permeameter testing soil body osmotic coefficient, wherein pressure cover 1 is arranged on sleeve 4 by snap close 2, pressure cover 1 is provided with osculum 13, osculum 13 connects graduated cylinder, sleeve 4 is connected by bolt 11 with base 7, base 7 is arranged intake tunnel 10 and exhaust passage 6, base 7 has permeable stone cistern 8, intake tunnel 10, exhaust passage 6 is communicated with permeable stone cistern 8, cutting ring 5 to be arranged in sleeve 4 and to be positioned at above permeable stone cistern 8, with the O type rubber band 9 pressurization sealing smearing vaseline between cutting ring 5 and base 7, intake tunnel 10 connects water source, exhaust passage 6 connects water leg, for exhaust and collection water outlet, base 7 is provided with the annular groove 14 for placing O type rubber band 9, described intake tunnel 10 and exhaust passage 6 are provided with valve.
Said apparatus is used for 2cm high soil sample osmotic coefficient investigating, first cut the common permeable cutting ring sample that 4cm is high, paste filter paper with the adjustment permeable stone 12 of wetting 2cm model and be placed on cutting ring cutting edge end, adjustment permeable stone is just advanced cutting ring 5 by balanced applied thrust, is excised by soil more than cutting ring 5 other end and namely completes sample preparation.As need saturated then can by saturated according to specification in saturator, if unsaturated, then to carry out head saturated for available device of the present utility model.Then in the permeable stone cistern 8 of base 7, moistening permeable stone 3 is placed, and place filter paper above it again, be then placed on base 7 by the cutting ring 5 installing soil sample, soil sample is alignd with permeable stone cistern 8, soil sample placing height is 2cm, and adjustment permeable stone 12 thickness that soil sample is placed is 2cm; Result after adjustment is the overall height of soil sample in cutting ring 5 and adjustment permeable stone 12 is 4cm, and adjustment permeable stone 12 places filter paper, then on filter paper, place the wetting permeable stone of one deck; Sleeve 4 to be carefully enclosed within cutting ring 5 and to be fixed on base, finally tighting a bolt 11; Open the valve that intake tunnel 10 is other, water is passed into by intake tunnel 10, the permeable stone of water in permeable stone cistern 8, flow out from exhaust passage 6 and take away the air in base 7, the water flowed out enters in water leg, when no longer including bubble spilling in exhaust passage 6, shut the valve on exhaust passage 6.Water is from bottom to top permeated to soil sample 15 from the permeable stone cistern of base by permeable stone afterwards, be full of whole device gradually, start to survey initial head height and initial time in record water source device when osculum 13 there are flowing out, interval record head and the change of time on schedule, and survey note outlet temperature.By water source device middle water level conversion height, survey note head and time variations again after treating stable level, revision test 5-6 time.When difference starts the infiltration coefficient that measures under head when allowing in difference range, terminate test (see figure 2).
Embodiment 2: the present embodiment apparatus structure is with embodiment 1; For 4cm high soil sample osmotic coefficient investigating, first get 4cm high soil sample with permeability standard cutting ring, as need saturated then can by saturated according to specification in saturator, if unsaturated, then to carry out head saturated for available device of the present utility model.Then in the permeable stone cistern 8 of base 7, moistening permeable stone 3 is placed, and place filter paper above it again, then the cutting ring 5 installing soil sample is placed on base 7, soil sample is alignd with permeable stone cistern 8, soil sample placing height is 4cm, soil sample upper surface places wetting filter paper, then on filter paper, place the wetting permeable stone of one deck; Sleeve 4 to be carefully enclosed within cutting ring 5 and to be fixed on base, finally tighting a bolt 11; Finally tight a bolt and 11 pass into water by intake tunnel 10, the permeable stone of water in permeable stone cistern 8, flows out and takes away the air in base 7 from exhaust passage 6, and the water of outflow enters in water leg, when no longer including bubble spilling in exhaust passage 6, shut the valve on exhaust passage 6.Water is from bottom to top permeated to soil sample 15 from the permeable stone cistern of base by permeable stone afterwards, be full of whole pressure cover 1 gradually, start to survey initial head height and initial time in record water source device when osculum 13 there are flowing out, interval record head and the change of time on schedule, and survey note outlet temperature.By water source device middle water level conversion height, survey note head and time variations again after treating stable level, revision test 5-6 time.When difference starts the infiltration coefficient that measures under head when allowing in difference range, terminate test (see figure 3).
Claims (3)
1. for testing an one dimension permeameter for soil body osmotic coefficient, it is characterized in that: it comprises pressure cover (1), sleeve (4), cutting ring (5), base (7), wherein pressure cover (1) is arranged on sleeve (4) by snap close (2), pressure cover (1) is provided with osculum (13), osculum (13) external graduated cylinder, sleeve (4) is connected by bolt (11) with base (7), base (7) is arranged intake tunnel (10) and exhaust passage (6), base (7) has permeable stone cistern (8), intake tunnel (10), exhaust passage (6) is communicated with permeable stone cistern (8), cutting ring (5) to be arranged in sleeve (4) and to be positioned at permeable stone cistern (8) top, by O type rubber band (9) press seal between cutting ring (5) and base (7), intake tunnel (10) connects water source, exhaust passage (6) connects water leg.
2. the one dimension permeameter for testing soil body osmotic coefficient according to claim 1, is characterized in that: described base (7) is provided with the annular groove (14) for placing O type rubber band (9).
3. the one dimension permeameter for testing soil body osmotic coefficient according to claim 1 and 2, is characterized in that: intake tunnel (10) and exhaust passage (6) are provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420190.2U CN204789260U (en) | 2015-06-17 | 2015-06-17 | A one -dimensional infiltration appearance for testing soil body osmotic coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420190.2U CN204789260U (en) | 2015-06-17 | 2015-06-17 | A one -dimensional infiltration appearance for testing soil body osmotic coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789260U true CN204789260U (en) | 2015-11-18 |
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|---|---|---|---|
| CN201520420190.2U Expired - Fee Related CN204789260U (en) | 2015-06-17 | 2015-06-17 | A one -dimensional infiltration appearance for testing soil body osmotic coefficient |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525695A (en) * | 2017-01-10 | 2017-03-22 | 贵州大学 | Soil capillary porosity tester and testing method thereof |
| CN108593381A (en) * | 2018-05-09 | 2018-09-28 | 同济大学 | A kind of subgrade soil that stress is controllable quantifies humidification device |
| CN109374443A (en) * | 2018-11-30 | 2019-02-22 | 中国海洋大学 | A kind of littoral facies soft clay slurry-Soil Interface shear parameters measuring instrument and measurement method |
| 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 |
| CN109556931A (en) * | 2018-10-31 | 2019-04-02 | 同济大学 | Soil cement cutting ring sample preparation facilities and permeability coefficient of cement soil measuring method, equipment |
-
2015
- 2015-06-17 CN CN201520420190.2U patent/CN204789260U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525695A (en) * | 2017-01-10 | 2017-03-22 | 贵州大学 | Soil capillary porosity tester and testing method thereof |
| CN106525695B (en) * | 2017-01-10 | 2023-09-01 | 贵州大学 | Soil capillary porosity measuring device and measuring method thereof |
| CN108593381A (en) * | 2018-05-09 | 2018-09-28 | 同济大学 | A kind of subgrade soil that stress is controllable quantifies humidification device |
| CN108593381B (en) * | 2018-05-09 | 2024-01-30 | 同济大学 | Roadbed soil body quantitative humidifying device with controllable stress |
| CN109556931A (en) * | 2018-10-31 | 2019-04-02 | 同济大学 | Soil cement cutting ring sample preparation facilities and permeability coefficient of cement soil measuring method, equipment |
| CN109374443A (en) * | 2018-11-30 | 2019-02-22 | 中国海洋大学 | A kind of littoral facies soft clay slurry-Soil Interface shear parameters measuring instrument and measurement method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151118 Termination date: 20170617 |