CN2355005Y - Water supplier for osmotic deformation instrument - Google Patents
Water supplier for osmotic deformation instrument Download PDFInfo
- Publication number
- CN2355005Y CN2355005Y CN 98204090 CN98204090U CN2355005Y CN 2355005 Y CN2355005 Y CN 2355005Y CN 98204090 CN98204090 CN 98204090 CN 98204090 U CN98204090 U CN 98204090U CN 2355005 Y CN2355005 Y CN 2355005Y
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- pressure
- water
- utility
- model
- deformation instrument
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a water supplier for an osmotic deformation instrument, which belongs to the field of the pressure-stabilizing water supply. The utility model is characterized in that a balloon (26) is connected in a pressurization water storage tank (28) which is connected with an air compressor (12), a pressure regulating gauge (22), a pressure regulating valve (23) and a pressure measuring pipe (25) through pipelines and is communicated with a vacuum pump (11), a water head pressure gauge (21), the pressure measuring pipe (25), and an osmotic deformation instrument (27). The utility model has the advantages that the testing water head is high (50m), the fine regulating accuracy is 1 cm, the water flow is stable, and water supply is enough. The utility model is suitable for various incoherence soils (containing the gravel soil), the piping, the filter material, and the self-healing test of the width seam.
Description
The utility model type belongs to controlled pressure-stabilizing water supply device.
Seepage deformation can take place under the infiltration flow action incoherence soil (containing sandy gravel) destroys.The water system of the seepage deformation instrument of original mensuration seepage deformation data promotes bucket (or water column height) by pulley and realizes, having can not continuous water supply, the careful suitable weak permeable fine grained soils of doing, and highly permeable coarse-grained soil, insufficient water and interrupting then, and head is restricted, the insecure weak point of numerical value.
The purpose of this utility model is that current are uninterrupted, the water supply installation of the de aerated water of stable water pressure for the seepage deformation test provides a kind of water supply sufficient.
The utility model is achieved by the following scheme: connect balloon (26) in pressure-bearing water tank (28), work the pressure effect of regulating, link to each other with air contractive pressure machine (12), pressure regulation pressure meter (22), pressure regulator valve (23), piezometer tube (25) by pipeline, to produce controlled pressure source; And be connected with vacuum pump (11) head pressure table (21) piezometer tube (25) and seepage deformation instrument (27) by pipeline, so that controlled stable degassing current to be provided.
The pressure of pressure-bearing water tank (28) is 0.01～0.5MPa, and is in series by 3 jars, so that the continuous current of high water head to be provided.
Advantage of the present utility model and good effect are: 1. to bear pressure be 0.5MPa to the maximum of pressure-bearing water tank, can carry out the test that head height is 50m, trimming precision 1cm; 2. can keep every grade of head stable water pressure, under any gradient, the complementary testing water, it is sufficient to guarantee to supply water; 3. de aerated water is provided, guarantees that current are sufficient stable; 4. device is simple, sensitivity, applicability is strong, the test water flow path direction can be level to vertical to.Can be widely used in coarse grain scholar, cohesive soil, gravel soil; Undisturbed soil is reinvented disturbed soil; Can finish the piping test, filter material test and the wide seam of cohesive soil (aperture 3～5mm) self-healing tests, the impervious gradient test of rock folder mud;
Below in conjunction with embodiment the utility model is further set forth:
Seepage deformation instrument water supply installation structure such as accompanying drawing.Accompanying drawing is the water supply installation structural representation, and wherein: 1,2,3 advance (row) valve; 4,5,6,7 feed water valves; 8,9,10 extraction valves; 11 vacuum pumps; 12 air compressors; 13,14,15 pressure valve; 16,17,18,19 advance the instrument feed water valve; 20 vacuum meters; 21 head pressure tables; 22 pressure regulation pressure meters; 23 pressure regulator valves; 24 counterweights; 25 piezometer tube; 26 balloons; 27 seepage deformation instrument; 28 pressure-bearing water tanks; 29 samples; 30 measuring tanks.
The container dimensional of seepage deformation instrument, method of operating is undertaken by " earthwork test rule " SD128-035-87.To obtain critical gradient and to destroy gradient.
The utility model is exactly by connecing balloon (26) in pressure-bearing water tank (28), rinsing pressure pipe (25) by pipeline and air compressor (12) pressure regulation pressure meter (22) pressure regulator valve (23) links to each other, and be connected with straight empty pump (11) head pressure table (21) piezometer tube (25) and seepage deformation instrument (27) by pipeline, constitute a controlled pressurization, voltage stabilizing, water supply installation, the current of pressure stability are provided for test.
For obtaining correct test parameters, guarantee that it is the key of test that permeate water flow is stablized.The valve of at first opening on the pressure-bearing water tank (28) (1,2,3) is communicated with atmosphere, opens inlet valve (4,5,6,7) water filling in the pressure-bearing water tank (should not fill with) of water supply installation then, closes into water, air intake valve afterwards; Open vacuum pump evacuating valve (8,9,10), start vacuum pump (11), under condition of high vacuum degree with the water degasification in the pressure-bearing water tank, for test provides de aerated water, termination of pumping after 1 hour, venting communicates with atmosphere; Close the vacuum system valve, start air contractive pressure machine (12) and open pressure valve (13,14,15), simultaneously according to the hydraulic slope size, calculate every grade of force value that gradient is required, manual pressure regulating valve (23) is delivered to balloon (26) in the pressure-bearing water tank with Compressed Gas, air pressure is shunk balloon (26) at any time or is expanded, play the effect of adjusting and stable hydraulic pressure, water is by the feed water valve on the pipeline (16,17 in jar, 18,19) flow in the seepage deformation instrument.The water flow pressure that water supply installation provides is stable, sensitive, can keep every grade of head continuous action time to off-test.
The pressure of pressure-bearing water tank (28) is 0.01～0.5MPa, is formed by 3 jar rate connection, can carry out the following test of 50m head, trimming precision 1cm, and can replenish water to arbitrary pressure-bearing water tank, realize continuous water supply.But macroscopic test overall process also.
According to the test needs, answer applied pressure value H under every grade of gradient
1=i (seepage gradient) * L (specimen length)+H
2(side pressure pipe zero water level height).The seepage deformation instrument test result of implementing through water supply installation sees the following form:
| Sample number | Test method | The sample classification | Water level | Seepage velocity | Coefficient of permeability K 20 | Reach the hydraulic slope when destroying | |
| The upstream | The downstream | ||||||
| Cm | Cm | Cm/s | Cm/s | ||||
| BTJ18-2 | Current piping test from bottom to top | Gravel | 153.8 | 79.8 | 1.72 * 10 -2 | 5.20 * 10 -3 | 2.95 |
| TC93-1-1 | Current piping test from bottom to top | Undisturbed soil sample | 987 | 0.0 | 3.66 * 10 -1 | 3.08 * 10 -3 | 100.0 |
| The 304-IV | Current piping test from bottom to top | Rock seam folder mud | 844 | 94.5 | 11.39 | 8.30 * 10 -2 | 119.56 |
| TC93-1-7 | Current be level to.Aperture is the crack self-healing test of 3mm | Filter material and remoulded sample | 732 | 0.0 | 1.70 * 10 -2 | 2.00 * 10 -4 | 75.5 |
Claims (2)
1. the water supply installation of a seepage deformation instrument, form by container and pipeline, it is characterized in that container is pressure-bearing water tank (28), in connect balloon (26), link to each other with air compressor (12) pressure regulation pressure meter (22) pressure regulator valve (23) piezometer tube (25) by pipeline, and be connected with vacuum pump (11) head pressure table (21) piezometer tube (25) and seepage deformation instrument (27) by pipeline.
2. according to the described water supply installation of claim 1, the pressure that it is characterized in that pressure-bearing water tank (28) is 0.01～0.5MPa, and is in series by 3 jars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204090 CN2355005Y (en) | 1998-05-05 | 1998-05-05 | Water supplier for osmotic deformation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204090 CN2355005Y (en) | 1998-05-05 | 1998-05-05 | Water supplier for osmotic deformation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2355005Y true CN2355005Y (en) | 1999-12-22 |
Family
ID=33960769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204090 Expired - Fee Related CN2355005Y (en) | 1998-05-05 | 1998-05-05 | Water supplier for osmotic deformation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2355005Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323196A (en) * | 2011-05-23 | 2012-01-18 | 申坤 | Design manufacturing and application of triaxial penetration tester |
| CN102411042A (en) * | 2011-08-23 | 2012-04-11 | 河海大学 | Piping test device of seepage corrosion stress coupling |
| CN103926179A (en) * | 2014-02-27 | 2014-07-16 | 新疆水利水电科学研究院 | Asphalt concrete permeability detector |
| CN106869240A (en) * | 2017-04-05 | 2017-06-20 | 浙江水利水电学院 | Sponge Urban Underground tank water is stored, extraction element and operation method |
| CN111809690A (en) * | 2019-04-12 | 2020-10-23 | 宁波方太厨具有限公司 | Automatic pressure-stabilizing water source device for laboratory and water pressure adjusting method thereof |
-
1998
- 1998-05-05 CN CN 98204090 patent/CN2355005Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323196A (en) * | 2011-05-23 | 2012-01-18 | 申坤 | Design manufacturing and application of triaxial penetration tester |
| CN102411042A (en) * | 2011-08-23 | 2012-04-11 | 河海大学 | Piping test device of seepage corrosion stress coupling |
| CN103926179A (en) * | 2014-02-27 | 2014-07-16 | 新疆水利水电科学研究院 | Asphalt concrete permeability detector |
| CN106869240A (en) * | 2017-04-05 | 2017-06-20 | 浙江水利水电学院 | Sponge Urban Underground tank water is stored, extraction element and operation method |
| CN111809690A (en) * | 2019-04-12 | 2020-10-23 | 宁波方太厨具有限公司 | Automatic pressure-stabilizing water source device for laboratory and water pressure adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |