CN103487565A - Novel permeation simulation device - Google Patents
Novel permeation simulation device Download PDFInfo
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- CN103487565A CN103487565A CN201310408282.4A CN201310408282A CN103487565A CN 103487565 A CN103487565 A CN 103487565A CN 201310408282 A CN201310408282 A CN 201310408282A CN 103487565 A CN103487565 A CN 103487565A
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Abstract
The invention provides a novel permeation simulation device. The novel permeation simulation device consists of a frequency conversion pressurization system, a main permeation system and a real-time monitoring system, wherein the frequency conversion pressurization system and the real-time monitoring system are both connected with the main permeation system comprising a permeation liquid storage device and a soil sample filling device; the tabulate permeation liquid storage device is internally provided with a chamber for storing a permeation liquid; the soil sample filling device at least comprises a base, an upper cover, sleeves, connecting rods and three-petal molds; each three-petal mold is integrally cylindrical, and consists of more than three arc plates; soil samples are positioned in the three-petal molds; the sleeves are arranged on the three-petal molds in a sleeved manner. According to the invention, the defect that a permeated soil sample cannot be completely taken out of a traditional permeameter is solved, the concept of permeating the soil samples in parallel is realized, the disadvantage that the seal property is not good enough by fixing and pressing at a point is overcome, and the technical difficulty in the experiment in mechanics for the permeated soil sample is solved well.
Description
Technical field
The present invention has designed a kind of soil permeability experiment simulator, for the soil test technique field.
Background technology
Soil permeability test is the mechanical characteristics of simulated soil under the condition of infiltration, studies this feature research and the protection of soil had to very large meaning, can provide experimental basis for studying the weakening mechanisms research under seepage effect of sliding band soil.The soil permeability experiment simulator that tradition is used, after test, because sealing and the operability of test unit are all good not, therefore can't, by the complete taking-up of soil sample after infiltration, more can't carry out follow-up Experiments of Machanics operation to the soil sample after infiltration.The main defect existed is as follows: when soil permeability the disturbance of soil sample large, the soil sample after infiltration can't be carried out the operation of follow-up Experiments of Machanics, and single test can only be tested for a soil sample, can't carry out parallel experiment.Therefore provide a kind of and can produce under the same conditions the Duplicate Samples after each infiltration and loop permeability test, and meet the device of requirement of the each side of permeability test and follow-up test thereof, become a problem demanding prompt solution of this area.
Summary of the invention
The invention provides a kind of Novel permeation analogue means, solved the deficiency in the background technology, this device solves traditional permeameter can not infiltration after the defect of the complete taking-up of soil sample, realized the imagination of parallel infiltration soil sample, perfect adopt a point fixedly pressing the imperfect shortcoming of sealing in the past, solved preferably the technical difficult problem for after infiltration, soil sample is carried out Experiments of Machanics.
Realize that the technical scheme that above-mentioned purpose of the present invention adopts is:
A kind of Novel permeation analogue means, by frequency conversion compression system, main osmosis system and real-time monitoring system, formed, wherein the frequency conversion compression system all is connected with main osmosis system with real-time monitoring system, described main osmosis system comprises penetrating fluid storer and soil sample sample charging device, described penetrating fluid storer is tabular, its inner chamber for the storage penetrating fluid, the top of penetrating fluid storer at least is provided with 4 penetrating fluids on same level by mouth, and each penetrating fluid is equipped with a soil sample sample charging device by equal correspondence on mouth; Described soil sample sample charging device at least comprises base, upper cover, sleeve, connecting link and three lobe moulds, three lobe mould integral body are cylindric, by three arcs, formed, soil sample is positioned at three lobe moulds, jacket casing is on three lobe moulds, the top of described three lobe moulds is positioned at upper cover, and the bottom of three lobe moulds is positioned at base, and the top of three lobe moulds and bottom are equipped with permeable stone; Upper cover and base be jointly by three lobe die clamp betweens, and by connecting link, be fixedly connected with between the two; Base is fixed on the penetrating fluid of penetrating fluid storer and goes up by mouth, and is communicated with by mouth with penetrating fluid; Cover on described and be provided with osculum, osculum is communicated with the permeable stone at three lobe mould tops.
Be respectively equipped with inlet opening and vent port A on the left and right sides wall of described penetrating fluid storer, described penetrating fluid is provided with fixed orifice by the periphery of mouth.
Base is provided with and is connected and fixed hole, and base is fixed on the penetrating fluid storer by being connected and fixed hole and screw rod, also is provided with vent port B on the sidewall of base, and described vent port B is communicated with the permeable stone of three lobe mould bottoms.
The top of described three lobe moulds and bottom all are made as wedge shape, are convenient to fill in upper cover and base, and in upper cover and base, equal correspondence is provided with skewed slot; On three arcs in twos connected position be provided with semicircle shape recessed/tongue, and be provided with platform and prevent lateral shift.
Described sleeve is sandwiched between upper cover and base, and the top of sleeve and bottom are equipped with the rubber band of sealing, and in upper cover and base, equal correspondence is provided with the sleeve standing groove.
Be provided with three connecting links between upper cover and base, the lower end of connecting link is through base, and the upper end of connecting link is through upper cover and use nut lock.
Simulation of infiltration device provided by the present invention has the following advantages: 1, with the soil sample size of follow-up Experiments of Machanics, be complementary, reduce the soil sample disturbance.2,, after permeability test completes, the easy complete taking-up of the soil body, can in the situation that do not destroy its structure, carry out follow-up Experiments of Machanics to the soil body after infiltration.3, for follow-up different Experiments of Machanics, require the infiltration soil sample under identical infiltration state, produce Duplicate Samples, the single water inlet of each soil sample is controlled to identical osmotic pressure as far as possible, reduce experimental error.And device single test provided by the present invention at least can provide 4 Duplicate Samples.4, after the circulation permeability test requires soil sample stable under certain osmotic pressure, natural air drying or oven dry, then carry out the secondary cycle infiltration, and can be undertaken air-dry by the soil sample taking-up in the present invention.5, this apparatus structure is simple, easy to use, and cost is cheap.
The accompanying drawing explanation
The one-piece construction schematic diagram that Fig. 1 is simulation of infiltration device provided by the invention;
The one-piece construction schematic diagram that Fig. 2 is main osmosis system;
The structural representation that Fig. 3 is the soil sample sample charging device;
The structural representation that Fig. 4 is three lobe moulds;
The structural representation that Fig. 5 is base;
In figure: 1-penetrating fluid storer, the 2-inlet opening, 3-vent port A, the 4-penetrating fluid is by mouth, the 5-fixed orifice, 6-soil sample sample charging device, 7-base, 8-vent port B, 9-is connected and fixed hole, 10-upper cover, 11 osculums, the 12-permeable stone, 13-tri-lobe moulds, 14-sleeve, the 15-rubber band, 16-connecting link, 17-packing ring, the 18-screw rod, 19-permeable stone standing groove 20-skewed slot, 21-sleeve standing groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to detailed specific description, but protection content of the present invention is not limited to following examples.
The one-piece construction of Novel permeation analogue means provided by the present invention as shown in Figure 1, is comprised of frequency conversion compression system, main osmosis system and real-time monitoring system, and wherein the frequency conversion compression system all is connected with main osmosis system with real-time monitoring system.The numerical control variable frequency compression system can accurately be controlled osmotic pressure over time.Can input the pressurization parameter by the control panel of compression system before on-test, thereby realize full process automatization control osmotic pressure pressurization track.Real-time monitoring system measures installation composition by precision pressure gauge and accurate flowmeter etc.The variation that this main function of system is Real-Time Monitoring key position critical data, help test clerk to find rapidly test abnormality.
Described main osmosis system comprises penetrating fluid storer 1 and soil sample sample charging device 6, as shown in Figure 1, described penetrating fluid storer 1 is tabular, its inner chamber for the storage penetrating fluid, the top of penetrating fluid storer 1 at least is provided with 4 penetrating fluids on same level by mouth 4, each penetrating fluid is equipped with a soil sample sample charging device 6 by equal correspondence on mouth 4, is provided with in the present embodiment six penetrating fluids by mouth 4; Be respectively equipped with inlet opening 2 and vent port A3 on the left and right sides wall of penetrating fluid storer 1, described penetrating fluid is provided with fixed orifice 5 by the periphery of mouth 4.
The structure of soil sample sample charging device 6 as shown in Figure 3, at least comprise base 7, upper cover 10, sleeve 14, connecting link 16 and three lobe moulds 13, base 7 is provided with and is connected and fixed hole 9, base 7 is fixed on penetrating fluid storer 1 by being connected and fixed hole 9 and screw rod 18, also be provided with vent port B8 on the sidewall of base 7, described vent port B8 is communicated with the permeable stone of three lobe mould bottoms.As shown in Figure 4, its integral body is cylindric to the structure of three lobe moulds 13, by three arcs, formed, for preventing seepage, on three arcs in twos connected position be provided with semicircle shape recessed/tongue, and be provided with platform and prevent lateral shift.Soil sample is positioned at three lobe moulds 13, and sleeve 14 is enclosed within on three lobe moulds 13, and described sleeve 14 is sandwiched between upper cover 10 and base 7, and the top of sleeve 14 and bottom are equipped with the rubber band 15 of sealing, and in patrix and base, equal correspondence is provided with sleeve standing groove 21.
The top of described three lobe moulds 13 is positioned at upper cover, and the bottom of three lobe moulds 13 is positioned at base 7, and the top of three lobe moulds 13 and bottom be equipped with permeable stone 12, in upper cover and base all correspondence be provided with permeable stone standing groove 19.
The top of described three lobe moulds 13 and bottom all are made as wedge shape, are convenient to fill in upper cover 10 and base 7, and the interior equal correspondence of upper cover 10 and base 7 is provided with skewed slot 20.
As shown in Figure 5, base 7 is fixed on the penetrating fluid of penetrating fluid storer 1 and goes up by mouth the structure of base 7, and is communicated with by mouth with penetrating fluid; Upper cover 10 and base 7 are clipped in three lobe moulds 13 between the two jointly, and by connecting link 16, are fixedly connected with between the two; Be provided with three connecting links 16 between upper cover 10 and base 7, the lower end of connecting link 16 is through on base, and the upper end of connecting link is through upper cover and use nut lock.Described upper cover 10 is provided with osculum 11, and osculum 11 is communicated with the permeable stone at three lobe mould tops.
When using the soil sample sample charging device to make soil sample, step is as follows: at first three connecting links are passed below base, clamp with pliers respectively, place permeable stone on base.Then according to the soil test method for making sample, vaseline is smeared at three lobe mould inwalls by elder generation, will on three lobe mould sides, smear antiseepage glue, and the good sleeve of wall is outside got well also in splicing in twos.Then complete rubber band at the sleeve standing groove of base, the three lobe moulds that assemble are added to whole placement of sleeve and embed on base.Insert toward three lobe mould the insides the soil body configured, make soil sample.Rubber band on placing on sleeve, place upper dankness stone on three lobe moulds and soil sample, covers upper cover, makes upper cover pass through three connecting links.Screw connecting link with nut above upper cover, permeameter is sealed.
When needs are done concrete experimental implementation, at first close water inlet and the vent port A of penetrating fluid reservoir, the penetrating fluid reservoir is filled to water.Spread packing ring 17 at penetrating fluid by the mouth place respectively, the soil sample sample charging device that installs soil sample is installed respectively, fixedly screw by screw rod.Open again water inlet and the vent port A of penetrating fluid reservoir, until after the test water that vent port flows out do not contain bubble, quick closedown water inlet and vent port.Open six vent port B, then open the water inlet of penetrating fluid reservoir, flowed out by vent port B after making test water enter each permeameter kerve.Repeat the draining of intaking, until after the test water that vent port B flows out do not contain bubble, quick closedown reservoir water inlet and vent port B.
Open the reservoir water inlet, the soil sample in each permeameter three lobe moulds is reached capacity from bottom to top, the fluid stable of the water that waits each osculum to flow out.Record respectively water discharge and the water discharge time of each osculum, measure water temperature and relevant test parameters.After permeability test completes, close the reservoir water inlet, turn on the upper cover of each permeameter, take away upper dankness stone and upper rubber band, three lobe moulds are added to soil sample and take out together with sleeve, from three lobe moulds, revolve sleeve, with instruments such as pocket knives, take gently three lobe moulds apart, take out the complete soil sample after permeating, in order to complete follow-up triaxial shear test.
Claims (6)
1. a Novel permeation analogue means, by frequency conversion compression system, main osmosis system and real-time monitoring system, formed, wherein the frequency conversion compression system all is connected with main osmosis system with real-time monitoring system, it is characterized in that: described main osmosis system comprises penetrating fluid storer and soil sample sample charging device, described penetrating fluid storer is tabular, its inner chamber for the storage penetrating fluid, the top of penetrating fluid storer at least is provided with 4 penetrating fluids on same level by mouth, and each penetrating fluid is equipped with a soil sample sample charging device by equal correspondence on mouth; Described soil sample sample charging device at least comprises base, upper cover, sleeve, connecting link and three lobe moulds, three lobe mould integral body are cylindric, by three arcs, formed, soil sample is positioned at three lobe moulds, jacket casing is on three lobe moulds, the top of described three lobe moulds is positioned at upper cover, and the bottom of three lobe moulds is positioned at base, and the top of three lobe moulds and bottom are equipped with permeable stone; Upper cover and base be jointly by three lobe die clamp betweens, and by connecting link, be fixedly connected with between the two; Base is fixed on the penetrating fluid of penetrating fluid storer and goes up by mouth, and is communicated with by mouth with penetrating fluid; Cover on described and be provided with osculum, osculum is communicated with the permeable stone at three lobe mould tops.
2. Novel permeation analogue means according to claim 1, it is characterized in that: be respectively equipped with inlet opening and vent port A on the left and right sides wall of described penetrating fluid storer, described penetrating fluid is provided with fixed orifice by the periphery of mouth.
3. Novel permeation analogue means according to claim 2, it is characterized in that: base is provided with and is connected and fixed hole, base is fixed on the penetrating fluid storer by being connected and fixed hole and screw rod, also be provided with vent port B on the sidewall of base, described vent port B is communicated with the permeable stone of three lobe mould bottoms.
4. Novel permeation analogue means according to claim 1, it is characterized in that: the top of described three lobe moulds and bottom all are made as wedge shape, be convenient to fill in upper cover and base, in upper cover and base all correspondence be provided with skewed slot; On three arcs in twos connected position be provided with semicircle shape recessed/tongue, and be provided with platform and prevent lateral shift.
5. Novel permeation analogue means according to claim 1, it is characterized in that: described sleeve is sandwiched between upper cover and base, and the top of sleeve and bottom are equipped with the rubber band of sealing, in upper cover and base all correspondence be provided with the sleeve standing groove.
6. Novel permeation analogue means according to claim 1 is characterized in that: be provided with three connecting links between upper cover and base, the lower end of connecting link is through base, and the upper end of connecting link is through upper cover and use nut lock.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105241691A (en) * | 2015-10-30 | 2016-01-13 | 青岛农业大学 | Soil leachate collection system and soil leachate collection method |
CN107167410A (en) * | 2017-06-01 | 2017-09-15 | 三峡大学 | A kind of periodicity comes and goes seepage experimental apparatus and method |
CN108732330A (en) * | 2018-05-24 | 2018-11-02 | 河北建筑工程学院 | A kind of Unidirectional Freezing soil sample test device |
Citations (3)
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CN101419152A (en) * | 2008-12-02 | 2009-04-29 | 河海大学 | Pervious template cloth permeability test method and device based on concrete slurry medium |
CN101451986A (en) * | 2008-11-27 | 2009-06-10 | 浙江大学 | Novel slurry filling imitation device |
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2013
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CN101451986A (en) * | 2008-11-27 | 2009-06-10 | 浙江大学 | Novel slurry filling imitation device |
CN101419152A (en) * | 2008-12-02 | 2009-04-29 | 河海大学 | Pervious template cloth permeability test method and device based on concrete slurry medium |
US20120317777A1 (en) * | 2011-06-20 | 2012-12-20 | Cajiga Jose A | Method of assembling a modular commercial unit |
Non-Patent Citations (1)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105241691A (en) * | 2015-10-30 | 2016-01-13 | 青岛农业大学 | Soil leachate collection system and soil leachate collection method |
CN107167410A (en) * | 2017-06-01 | 2017-09-15 | 三峡大学 | A kind of periodicity comes and goes seepage experimental apparatus and method |
CN107167410B (en) * | 2017-06-01 | 2023-05-02 | 三峡大学 | Periodic round-trip seepage experimental device and method |
CN108732330A (en) * | 2018-05-24 | 2018-11-02 | 河北建筑工程学院 | A kind of Unidirectional Freezing soil sample test device |
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