CN204269524U - Geosynthetics In-plane optical anisotropy testing tool - Google Patents
Geosynthetics In-plane optical anisotropy testing tool Download PDFInfo
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- CN204269524U CN204269524U CN201420744656.XU CN201420744656U CN204269524U CN 204269524 U CN204269524 U CN 204269524U CN 201420744656 U CN201420744656 U CN 201420744656U CN 204269524 U CN204269524 U CN 204269524U
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- urceolus
- geosynthetics
- top board
- optical anisotropy
- testing tool
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Abstract
The utility model provides a kind of geosynthetics In-plane optical anisotropy testing tool, comprises elevated tank, low flush tank, pressurized cavity.Pressurized cavity comprises base plate and top board, many standing screws are provided with above base plate surrounding, top board is through standing screw, undertaken spacing by the tightening nut being set in standing screw, elastic pressurized rubber diaphragm is provided with below top board, form pressurizing chamber between top board and elastic pressurized rubber diaphragm, between elastic pressurized rubber diaphragm and base plate, form sample placement space; Top board is established pressurization hole and relief hole, pressurization hole connects force (forcing) pump by capstan.Elevated tank and pressurized cavity junction are provided with height-adjustable bottom water inlet; Water inlet, bottom is provided with the first packing washer; The junction of low flush tank and pressurized cavity is provided with height-adjustable bottom water delivering orifice; Bottom water outlet is provided with the second packing washer.The utility model versatility is good, easy and simple to handle, measuring accuracy is high.
Description
Technical field
The utility model relates to testing tool technical field, particularly relates to a kind of geosynthetics In-plane optical anisotropy testing tool.
Background technology
The geosynthetics such as geotextile, earthwork water drain net, composite drainage network, salient point drain bar are widely used in environment-friendly engineering, construction work, traffic engineering as plane internal drainage material, are the main materials of pumping equipment.In the plane of these adrainage materials, water permeable ability is the most important technical indicator of its product quality, also most important for construction quality.The method of test geosynthetics In-plane optical anisotropy is: under the hydraulic gradient and contact material condition of regulation, change the normal pressure of sample both sides, measure the discharge in geosynthetics plane.
New Geosynthetics kind at present for plane internal drainage gets more and more, and range of size is comparatively large, and existing similar checkout equipment cannot meet the test of the discharge in all kinds geosynthetics plane.Testing standard at present about the horizontal water passing capacity of plane internal drainage material is a lot, but checkout equipment all ununified both at home and abroad, there is following shortcoming in existing similar checkout equipment:
1, traditional testing apparatus, intake-outlet and pressurized cavity all adopt fixed sturcture, cannot change with specimen height change, can only test the adrainage material of certain size, thus poor universality.
2, normal pressure aspect, traditional instrument major part adopts hydraulic pressure or oil pressure, then by rigid plate by pressure dissipation, this pressuring method cannot eliminate the impact of concentrated stress, makes normal pressure skewness, thus has influence on measuring accuracy.
3, contact material aspect, most of instrument adopts rigid plate pressurization, can only simulate rigid contact material, can not simulate flexible contact material.
4, sample seal aspect, very large hydraulic pressure is also born in sealing place of existing instrument, when normal pressure strengthens, will cause seal failure, thus limit test normal pressure, make the upper limit of normal pressure not high.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide that a kind of versatility is good, measuring accuracy is high, can simulate the geosynthetics In-plane optical anisotropy testing tool of flexible contact material, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model provides a kind of geosynthetics In-plane optical anisotropy testing tool, comprises the pressurized cavity between elevated tank, low flush tank and two water tanks;
Described pressurized cavity comprises base plate and top board, the top of described base plate surrounding is provided with many standing screws, described top board is through described many standing screws, undertaken spacing by the tightening nut being set in many standing screws, the below of described top board is provided with elastic pressurized rubber diaphragm, form closed pressurizing chamber between described top board and described elastic pressurized rubber diaphragm, between described elastic pressurized rubber diaphragm and described base plate, form sample placement space; Described top board is provided with pressurization hole and relief hole, and described pressurization hole connects force (forcing) pump by capstan;
The junction of described elevated tank and described pressurized cavity is provided with the first plate movable up and down, forms height-adjustable bottom water inlet between described first plate and the base plate of described elevated tank; The first packing washer is provided with between the elevated tank of water inlet, described bottom and pressurized cavity;
The junction of described low flush tank and described pressurized cavity is provided with the second plate movable up and down, forms height-adjustable bottom water delivering orifice between described second plate and the base plate of described low flush tank; The second packing washer is provided with between the low flush tank of described bottom water outlet and pressurized cavity.
Preferably, described elevated tank comprises the first urceolus, is total to the first inner core of bottom with described first urceolus, described bottom water inlet is located at the sidewall of described first urceolus, the sidewall of described first urceolus is also provided with inlet opening, the bottom of described first urceolus is provided with the first pressure tap, the bottom of described first inner core is provided with first row water hole, and the sidewall of described first inner core is provided with the spout hole be communicated with the first urceolus.
Preferably, described spout hole is the axial pass trough being located at described first inner core sidewall, the sidewall of described first inner core is also enclosed with the Rubber membrane cover regulating different spilling water height.
Preferably, described low flush tank comprises the second urceolus, is total to the second inner core of bottom with described second urceolus, described bottom water delivering orifice is located at the sidewall of described second urceolus, the bottom of described second urceolus is provided with the second pressure tap, the top of described second inner core is communicated with described second urceolus, and the bottom of described second inner core is provided with second row water hole.
Preferably, described standing screw is four, is located at four corners of described base plate respectively.
Preferably, be tightly connected by press strip between described elastic pressurized rubber diaphragm and described top board.
Preferably, described top board is also provided with a pressure gauge and a level.
Preferably, the outside of the sample that described sample placement space is placed is enclosed with elastic emulsion thin-film covering, described elastic emulsion thin-film covering two ends are each passed through the interstitial hole of described first packing washer, the second packing washer, described first packing washer of reverse parcel, the second packing washer, make all to form sealing between described sample and the first packing washer, the second packing washer.
Preferably, multiple support column is provided with below described base plate.
Preferably, described support column is provided with external screw teeth section, and described external screw teeth section is arranged with setting nut.
As mentioned above, geosynthetics In-plane optical anisotropy testing tool of the present utility model, has following beneficial effect:
1, the bottom water inlet between elevated tank and pressurized cavity, the bottom water delivering orifice between low flush tank and pressurized cavity and pressurized cavity top board all adopt height-adjustable structure, can change with the change of specimen height, thus versatility of the present utility model is good; Hydraulic pressure can be adopted to pressurize, carry out transmission of pressure by elastic pressurized rubber diaphragm, easy and simple to handle, and pressure transmission is evenly true, not only measuring accuracy is high, and can simulate flexible contact material; Change the mode that conventional plastic drain bar seals in pressurization place, adopt the structure of pressures partially and hermetic separation, greatly increase the pressurization upper limit of normal pressure.
2, adopt elastic emulsion thin-film covering parcel sample namely to wrap up adrainage material, then make elastic emulsion thin-film covering oppositely wrap up described first packing washer, the second packing washer, make the good sealing effect between adrainage material and bottom water inlet, bottom water delivering orifice.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of geosynthetics In-plane optical anisotropy testing tool of the present utility model.
Fig. 2 is shown as the structural representation of the pressurized cavity of geosynthetics In-plane optical anisotropy testing tool of the present utility model.
Element numbers explanation
1 elevated tank 2 pressurized cavity
3 low flush tank 4 samples
5 first packing washer 6 elastic emulsion thin-film coverings
7 capstan 8 force (forcing) pumps
9 second packing washer 11 first urceolus
12 first inner core 13 inlet openings
14 first pressure tap 15 first row water holes
Water inlet 17 first plate bottom 16
18 spout hole 20 pressure gauges
21 top board 22 relief holes
23 elastic pressurized rubber diaphragms 24 pressurize hole
25 standing screw 26 tightening nut
27 sample placement space 28 base plates
29 support column 30 press strips
31 second inner core 32 second urceolus
Water delivering orifice 34 second row water hole bottom 33
35 second pressure tap 36 second plates
Embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this instructions can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 2.Notice, structure, ratio, size etc. that this instructions institute accompanying drawings illustrates, content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
In view of the geosynthetics In-plane optical anisotropy testing tool of prior art, intake-outlet and pressurized cavity all adopt fixed sturcture, cannot change with specimen height change, can only test the adrainage material of certain size, poor universality; In normal pressure, generally adopt hydraulic pressure or oil pressure, then by rigid plate by pressure dissipation, cannot eliminate the impact of concentrated stress, make normal pressure skewness, measuring accuracy is poor; In contact material, most of instrument adopts rigid plate pressurization, can only simulate rigid contact material, can not simulate flexible contact material; At sample seal aspect, sealing place will bear very large hydraulic pressure, when normal pressure strengthens, will cause seal failure, thus limit test normal pressure, make the upper limit of normal pressure not high.Inventor of the present utility model designs a kind of geosynthetics In-plane optical anisotropy testing tool, by making the Height Adjustable of pressurized cavity, and the height of water inlet, water delivering orifice also can be regulated, thus versatility is good.By arranging elastic pressurized rubber diaphragm below the top board of pressurized cavity, elastic pressurized rubber diaphragm is made to become the bottom of pressurizing chamber, thus normal pressure is evenly distributed, measuring accuracy is high and can simulate flexible contact material, and sealing place need not bear normal pressure, the upper limit of normal pressure is greatly improved.
Below will be described in detail to geosynthetics In-plane optical anisotropy testing tool of the present utility model by specific embodiment.
As shown in Figure 1, a kind of geosynthetics In-plane optical anisotropy testing tool, comprises the pressurized cavity 2 between elevated tank 1, low flush tank 3 and two water tanks.
As shown in Figure 1 and Figure 2, described pressurized cavity 2 comprises base plate 28 and top board 21, the top of described base plate 28 4 corners is respectively equipped with a standing screw 25, described top board 21 is through described standing screw 25, undertaken spacing by the tightening nut 26 being set in many standing screws 25, the below of described top board 21 is provided with elastic pressurized rubber diaphragm 23, form closed pressurizing chamber (not shown) between described top board 21 and described elastic pressurized rubber diaphragm 23, between described elastic pressurized rubber diaphragm 23 and described base plate 28, form sample placement space 27; Described top board 21 is provided with pressurization hole 24 and relief hole 22, and described pressurization hole 24 connects force (forcing) pump 8 by capstan 7.
Described elevated tank 1 is provided with the first plate 17 movable up and down with the junction of described pressurized cavity 2, forms height-adjustable bottom water inlet 16 between described first plate 17 and the base plate of described elevated tank 1; The first packing washer 5 is provided with between the elevated tank 1 at water inlet 16 place, described bottom and pressurized cavity 2.
Described low flush tank 3 is provided with the second plate 36 movable up and down with the junction of described pressurized cavity 2, forms height-adjustable bottom water delivering orifice 33 between described second plate 36 and the base plate of described low flush tank 3; The second packing washer 9 is provided with between the low flush tank 3 at water delivering orifice 33 place, described bottom and pressurized cavity 2.
Described elevated tank 1 of the present utility model comprises the first urceolus 11, is total to the first inner core 12 of bottom with described first urceolus, described bottom water inlet 16 is located at the sidewall of described first urceolus 11, the sidewall of described first urceolus 11 is also provided with inlet opening 13, the bottom of described first urceolus 11 is provided with the first pressure tap 14, the bottom of described first inner core 12 is provided with first row water hole 15, and the sidewall of described first inner core 12 is provided with the spout hole 18 be communicated with the first urceolus 11.
Described spout hole 18, for being located at the axial pass trough of described first inner core 12 sidewall, the sidewall of described first inner core 12 is also enclosed with the Rubber membrane cover (not shown) regulating different spilling water height.
Described low flush tank 3 of the present utility model comprises the second urceolus 32, is total to the second inner core 31 of bottom with described second urceolus, described bottom water delivering orifice 33 is located at the sidewall of described second urceolus 32, the bottom of described second urceolus 32 is provided with the second pressure tap 35, the top of described second inner core 31 is communicated with described second urceolus 32, and the bottom of described second inner core 31 is provided with second row water hole 34.
Be tightly connected preferably by press strip 30 between described elastic pressurized rubber diaphragm 23 of the present utility model and described top board 21, to ensure the positiver sealing of pressurizing chamber.
The using method of geosynthetics In-plane optical anisotropy testing tool of the present utility model is: first, the outside of sample 4 (i.e. adrainage material) is superscribed elastic emulsion thin-film covering 6, then, the sample 4 having wrapped up elastic emulsion thin-film covering 6 is placed into sample placement space 27, make the two ends of sample 4 stretch out pressurized cavity 2 with elevated tank 1, two ends that low flush tank 3 is adjacent; Then adjust the first plate 17 and the second plate 36, bottom water inlet 16, the height of bottom water delivering orifice 33 and the height of sample 4 are consistent, then adjust each tightening nut 26, make top board 21 horizontal soil pressure above sample 4.Make the interstitial hole of one end through the first packing washer 5 of sample 4, make the interstitial hole of the other end through the second packing washer 9 of sample 4, first packing washer 5 is located between elevated tank 1 and pressurized cavity 2, second packing washer 9 is located between low flush tank 3 and pressurized cavity 2, makes described elastic emulsion thin-film covering 6 two ends oppositely wrap up described first packing washer 5, second packing washer 9 respectively.By securing member, elevated tank 1 and pressurized cavity 2 are fixed, make the first packing washer 5 be pressed between elevated tank 1 and pressurized cavity 2, ensure that elevated tank 1 does not leak with the junction of pressurized cavity 2; By securing member, low flush tank 3 and pressurized cavity 2 are also fixed, make the second packing washer 9 be pressed in low flush tank 3 and pressurized cavity 2, ensure that low flush tank 3 does not also leak with the junction of pressurized cavity 2; And ensure that and all form sealing between described sample 4 and the first packing washer 5, second packing washer 9, do not produce leakage when ensureing that current flow in sample 4.
Described forcing pump 8 is preferably water pump, the cost that discharge is tested is low, oil pump can certainly be adopted, when adopting water pump, be forced into the pressure of test determination to pressurizing chamber water filling by pressure water pump 8, pressure is applied on sample 4 and on base plate 28 equably by elastic pressurized rubber diaphragm 23, sample 4 is in the passage of a sealing between elevated tank 1 and low flush tank 3, does not produce leakage during to ensure that current flow in sample 4.
The Rubber membrane cover on the sidewall of the first inner core 12 is adjusted according to test request, make the spilling water height that the spout hole 18 of the first inner core 12 reaches certain, by the inlet opening 13 of elevated tank 1 to water filling in the first urceolus 11, by the water level of spilling water Altitude control first urceolus 11, the water level read in the first urceolus 11 is surveyed by the piezometric tube be connected with the first pressure tap 14, the water in the first urceolus 11 is made to flow through sample 4 by bottom water inlet 16, arrive in the second urceolus 32 of low flush tank 3, when the height of the water level in the second urceolus 32 higher than the second inner core 31, water in low flush tank 3 is discharged through second row water hole 34, thus make to keep the water level equal with the height of the second inner core 31 in the second urceolus 32 of low flush tank 3 always, and survey by the piezometric tube be connected with the second pressure tap 35 water level read in the second urceolus 32, collect the flowing water of being discharged by second row water hole 34 with graduated cylinder, record gathers the time of flowing water and the water-head between corresponding first urceolus 11 and the second urceolus 32, namely completes the collection of discharge test data.
Top board 21 of the present utility model is preferably arranged pressure gauge 20 and a level (not shown), level is used for surveying the horizontality read when top board is pressed in above sample 4, and pressure gauge 20 is used for surveying the moulding pressure reading pressurizing chamber in real time.
Be provided preferably with multiple support column 29 below described base plate 28 of the present utility model, so that movement of the present utility model, move different positions and use.Described support column 29 is provided preferably with external screw teeth section, described external screw teeth section is arranged with setting nut (not shown), so that be fixed after moving different positions.
In sum, geosynthetics In-plane optical anisotropy testing tool of the present utility model, bottom water inlet between elevated tank and pressurized cavity, the bottom water delivering orifice between low flush tank and pressurized cavity and pressurized cavity top board all adopt height-adjustable structure, can change with the change of specimen height, thus versatility is good; Hydraulic pressure can be adopted to pressurize, carry out transmission of pressure by elastic pressurized rubber diaphragm, easy and simple to handle, and pressure transmission is evenly true, not only measuring accuracy is high, and can simulate flexible contact material; Change the mode that conventional plastic drain bar seals in pressurization place, adopt the structure of pressures partially and hermetic separation, greatly increase the pressurization upper limit of normal pressure.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (10)
1. a geosynthetics In-plane optical anisotropy testing tool, comprises the pressurized cavity (2) between elevated tank (1), low flush tank (3) and two water tanks; It is characterized in that,
Described pressurized cavity (2) comprises base plate (28) and top board (21), the top of described base plate (28) surrounding is provided with many standing screws (25), described top board (21) is through described many standing screws (25), undertaken spacing by the tightening nut (26) being set in many standing screws (25), the below of described top board (21) is provided with elastic pressurized rubber diaphragm (23), closed pressurizing chamber is formed between described top board (21) and described elastic pressurized rubber diaphragm (23), sample placement space (27) is formed between described elastic pressurized rubber diaphragm (23) and described base plate (28), described top board (21) is provided with pressurization hole (24) and relief hole (22), and described pressurization hole (24) connects force (forcing) pump (8) by capstan (7),
Described elevated tank (1) is provided with the first plate (17) movable up and down with the junction of described pressurized cavity (2), forms height-adjustable bottom water inlet (16) between the base plate of described first plate (17) and described elevated tank (1); The first packing washer (5) is provided with between the elevated tank (1) at water inlet (16) place, described bottom and pressurized cavity (2);
Described low flush tank (3) is provided with the second plate (36) movable up and down with the junction of described pressurized cavity (2), forms height-adjustable bottom water delivering orifice (33) between the base plate of described second plate (36) and described low flush tank (3); The second packing washer (9) is provided with between the low flush tank (3) at water delivering orifice (33) place, described bottom and pressurized cavity (2).
2. geosynthetics In-plane optical anisotropy testing tool according to claim 1, it is characterized in that: described elevated tank (1) comprises the first urceolus (11), first inner core (12) of bottom is total to described first urceolus, the sidewall of described first urceolus (11) is located in described bottom water inlet (16), the sidewall of described first urceolus (11) is also provided with inlet opening (13), the bottom of described first urceolus (11) is provided with the first pressure tap (14), the bottom of described first inner core (12) is provided with first row water hole (15), the sidewall of described first inner core (12) is provided with the spout hole (18) be communicated with the first urceolus (11).
3. geosynthetics In-plane optical anisotropy testing tool according to claim 2, it is characterized in that: described spout hole (18), for being located at the axial pass trough of described first inner core (12) sidewall, the sidewall of described first inner core is also enclosed with the Rubber membrane cover regulating different spilling water height.
4. geosynthetics In-plane optical anisotropy testing tool according to claim 1, it is characterized in that: described low flush tank (3) comprises the second urceolus (32), second inner core (31) of bottom is total to described second urceolus, the sidewall of described second urceolus (32) is located in described bottom water delivering orifice (33), the bottom of described second urceolus (32) is provided with the second pressure tap (35), the top of described second inner core (31) is communicated with described second urceolus (32), the bottom of described second inner core (31) is provided with second row water hole (34).
5. geosynthetics In-plane optical anisotropy testing tool according to claim 1, is characterized in that: described standing screw (25) is four, is located at four corners of described base plate (28) respectively.
6. the geosynthetics In-plane optical anisotropy testing tool according to any one of claim 1 to 5, is characterized in that: be tightly connected by press strip (30) between described elastic pressurized rubber diaphragm (23) and described top board (21).
7. the geosynthetics In-plane optical anisotropy testing tool according to any one of claim 1 to 5, is characterized in that: described top board (21) is also provided with a pressure gauge (20) and a level.
8. the geosynthetics In-plane optical anisotropy testing tool according to any one of claim 1 to 5, it is characterized in that: the outside of the sample (4) that described sample placement space (27) is placed is enclosed with elastic emulsion thin-film covering (6), described elastic emulsion thin-film covering (6) two ends are each passed through described first packing washer (5), the interstitial hole of the second packing washer (9), described first packing washer (5) of reverse parcel, second packing washer (9), make described sample (4) and the first packing washer (5), second packing washer all forms sealing between (9).
9. the geosynthetics In-plane optical anisotropy testing tool according to any one of claim 1 to 5, is characterized in that: described base plate (28) below is provided with multiple support column (29).
10. geosynthetics In-plane optical anisotropy testing tool according to claim 9, is characterized in that: described support column (29) is provided with external screw teeth section, described external screw teeth section is arranged with setting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744656.XU CN204269524U (en) | 2014-12-01 | 2014-12-01 | Geosynthetics In-plane optical anisotropy testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744656.XU CN204269524U (en) | 2014-12-01 | 2014-12-01 | Geosynthetics In-plane optical anisotropy testing tool |
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| Publication Number | Publication Date |
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| CN204269524U true CN204269524U (en) | 2015-04-15 |
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| CN201420744656.XU Withdrawn - After Issue CN204269524U (en) | 2014-12-01 | 2014-12-01 | Geosynthetics In-plane optical anisotropy testing tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378651A (en) * | 2017-08-04 | 2017-11-24 | 北京交通大学 | A kind of magnetorheological plane polishing device |
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2014
- 2014-12-01 CN CN201420744656.XU patent/CN204269524U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378651A (en) * | 2017-08-04 | 2017-11-24 | 北京交通大学 | A kind of magnetorheological plane polishing device |
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