CN104777088A - Device for testing sandy soil permeability coefficient in any sedimentation direction - Google Patents
Device for testing sandy soil permeability coefficient in any sedimentation direction Download PDFInfo
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- CN104777088A CN104777088A CN201510187116.5A CN201510187116A CN104777088A CN 104777088 A CN104777088 A CN 104777088A CN 201510187116 A CN201510187116 A CN 201510187116A CN 104777088 A CN104777088 A CN 104777088A
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Abstract
The invention discloses a device for testing a sandy soil permeability coefficient in any sedimentation direction. The device comprises a sample preparation device and a permeability apparatus, wherein the sample preparation device comprises a rectangular sample preparation mold, a tray, a fan-shaped bracket, a base, a funnel rack and a sand dropping funnel; a left chute and a right chute are formed in positions, which correspond to a left top plate and a right top plate, on a front side plate and a rear side plate; a left slide block and a right slide block are respectively arranged on the left top plate and the right top plate; the left slide block and the right slide block are respectively positioned in the left chute and the right chute and can slide relative to each other; each of the left top plate and the right top plate is provided with a locking device through which the left top plate and the right top plate are fixedly arranged on front side plate and the rear side plate; the bottom of the tray is pivoted with the base; the fan-shaped bracket is fixedly arranged on the base and is positioned on the front side or rear side of the tray; angle scales are marked at positions, which are close to an arc-shaped connecting groove, of the fan-shaped bracket; a rod part of a second fixing bolt penetrates through the arc-shaped connecting groove in the fan-shaped bracket and is in threaded connection with the tray; and the diameter of the nut of the second fixing bolt is larger than the width of the arc-shaped connecting groove. According to the device disclosed by the invention, the sandy soil permeability coefficient in any sedimentation direction can be tested, and the device is convenient to operate and low in construction cost and has high popularization and application values.
Description
Technical field
The invention belongs to indoor soil mechanics testing equipment, particularly relate to a kind of deposition direction sand device for testing permeability coefficient arbitrarily.
Background technology
In the deposition process of topsoil, due to aligning of particle, the soil body can be made to have inherent anisotropy.Along with earth movement, stratum, due to extruding and drawing crack, form fold, the various tectonic structure such as tomography, therefore in natural soil layer, soil particle aligns direction may become arbitrarily angled with surface level.But in engineering practice, bearing capacity and seepage flow distribute along horizontal direction and vertical direction often.Therefore, be necessary to study the physico mechanical characteristic of any deposition direction sand.
In shop experiment, sand crude sedimentation process can be simulated preferably by sand rain method or the standby sample of knockout legal system.But in the sample preparation of conventional shop experiment, due to the restriction of sample preparation device, adopt sand rain method or knockout method can only obtain the sample of particle level arrangement, and for the preparation of other deposition direction sample and test, there is no correlation technique at present.
Summary of the invention
In view of the deficiency that background technology exists, technical matters to be solved by this invention is to provide a kind of any deposition direction sand device for testing permeability coefficient that can carry out penetration testing to any deposition direction anisotropy sand.
The present invention takes following technical scheme: deposition direction sand device for testing permeability coefficient arbitrarily, comprise sample preparation device and permeability apparatus, described sample preparation device comprises rectangular-shaped sampling die, pallet, fan, base, filtration stand and knockout funnel, described sampling die comprises base plate, left roof, right top board, front side board and back side panel, left roof, right top board, front side board, back side panel and base plate and sampling die cavity adjacent part are fixed with permeable stone, left roof, right top board, front side board, back side panel and base plate and permeable stone contact portion are provided with connecting screw hole, connecting screw hole links up extraneous and permeable stone, connecting screw hole is supporting solid bolt and hollow bolt, wherein solid bolt is used for sealing, hollow bolt is used for external proofed sleeve, the corresponding described left roof of described front side board and back side panel upper end and right top board offer left chute and right rail respectively, respectively with left slider and right slide block on described left roof and right top board, left slider and right slide block to be in respectively in left chute and right rail and can relative slidings, and described left roof and right top board are configured with the locking device be separately fixed on front side board and back side panel, described sampling die is arranged on pallet, pallet shape is mated with base plate, described tray bottom and base pivot joint, described fan to be fixed on base and to be in front side and/or the rear side of pallet, with arc link slot on described fan, described fan is labeled with angle index near arc link slot place, and the bar portion of the second set bolt is threaded with pallet through the arc link slot on fan, and the head diameter of described second set bolt is greater than the width of arc link slot.
The invention has the beneficial effects as follows: the sand sample that can obtain any deposition direction in regular mould, for under research natural condition, the various physico-mechanical propertieses of sand sample provide condition, and this device is easy to operate, cheap, there is good promotional value.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of any deposition direction sand device for testing permeability coefficient provided by the invention.
Fig. 2 is the structural principle schematic diagram of the sample preparation device in Fig. 1.
Fig. 3 is the schematic top plan view of the filtration stand in Fig. 2.
Fig. 4 is the assembled state structural representation of base plate in Fig. 2 and front and back biside plate.
Fig. 5 is the structural representation of the pallet in Fig. 2.
Fig. 6 is the structural representation of the faceplate part of base in Fig. 2.
In each accompanying drawing: 1, permeability apparatus; 2, sampling die; 3, pallet; 4, fan; 5, base; 6, filtration stand; 7, knockout funnel; 8, funnel sliding tray; 9, permeable stone; 10, connecting screw hole; 11, proofed sleeve; 12, left chute; 13, right rail; 14, plug hinge; 15, the first set bolt; 16, arc link slot; 17, the second set bolt; 18, clamping screw; 19, screw hole; 21, base plate; 22, left roof; 23, right top board; 24, front side board; 25, back side panel.
Embodiment
Drawings illustrate technical scheme of the present invention and embodiment, further describe each details and the principle of work of embodiment below more by reference to the accompanying drawings.
Shown in Fig. 6, any deposition direction sand device for testing permeability coefficient provided by the invention, comprise sample preparation device and permeability apparatus 1, described sample preparation device comprises rectangular-shaped sampling die 2, pallet 3, fan 4, base 5, filtration stand 6 and knockout funnel 7, on filtration stand 6, cross direction profiles has strip funnel sliding tray 8, and described knockout funnel 7 to be set up in funnel sliding tray 8, and knockout funnel 7 can carry out 8 travelling backwards along funnel sliding tray and move knockout, and described sampling die 2 comprises base plate 21, left roof 22, right top board 23, front side board 24 and back side panel 25, base plate 21, left roof 22, right top board 23, front side board 24 and back side panel 25 are fixed with permeable stone 9, base plate 21 with sampling die 2 cavity adjacent part, left roof 22, right top board 23, front side board 24 and back side panel 25 are provided with connecting screw hole 10 with permeable stone 9 contact portion, connecting screw hole 10 links up extraneous and permeable stone 9, connecting screw hole 10 is supporting solid bolt and hollow bolt, and wherein solid bolt is used for sealing, and hollow bolt is used for external proofed sleeve 11, the corresponding described left roof 22 of described front side board 24 and back side panel 25 upper end and right top board 23 offer left chute 12 and right rail 13 respectively, sealing gasket or O RunddichtringO is provided with in left chute 12 and right rail 13, general employing O RunddichtringO, respectively with left slider and right slide block on described left roof 22 and right top board 23, left slider and right slide block to be in respectively in left chute 12 and right rail 13 and can relative slidings, left roof 22 and right top board 23 is made can also to realize the opening and closing to sampling die along left chute 12 and right rail 13 slippage respectively thus, described left roof 22 and right top board 23 are all configured with the locking device be separately fixed on front side board and back side panel, described sampling die 2 is arranged on pallet 3, pallet 3 shape is mated with base plate 21, with base 5 pivot joint bottom described pallet 3, general pallet 3 is vertically connected to form by two boards, pallet 3 is connected on base 5 by plug hinge 14, change arbitrarily by 0 degree to 45 degree with base 5 angle on the right side of described pallet 3, described fan 4 to be fixed on base 5 and to be in front side and/or the rear side of pallet 3, before and after general pallet 3, side tool all has fan 4, fan 4 is generally fixed on base 5 by the first set bolt 15, with arc link slot 16 on described fan 4, described fan 4 is labeled with angle index near arc link slot 16 place, the bar portion of the second set bolt 17 is threaded with pallet 3 through the arc link slot 16 on fan 4, the head diameter of described second set bolt 17 is greater than the width of arc link slot 16, fan 4 can be pushed down.
With reference to shown in Fig. 2, Fig. 4, slide to make left roof 22 and right top board 23 and can lock after closing sampling die, locking device on described front side board 24 and back side panel 25 comprises the screw hole 19 of the chute upper side wall of clamping screw 18 and described base plate 21, described clamping screw 18 is bolted in screw hole 19 place, after sampling die 2 closed by described left roof 22 and right top board 23, described clamping screw 18 can be tightened downwards, and then is pressed on described left slider and right slide block.
The present invention is described in detail below by concrete case:
Sampling die entirety comprises base plate 21, left roof 22, right top board 23, front side board 24 and back side panel 25, O RunddichtringO is arranged in left chute 12 on the upside of base plate and right rail 13, after left roof 22 and right top board 23 are completely closed, the square of sampling die 2 internal cavities to be the length of side be 150mm, base plate 21, left roof 22, right top board 23, front side board 24 and back side panel 25 are permeable stone 9 with material in the 3mm thickness range of cavity adjacent part, other portion of material adopt stainless steel or high rigidity plastic cement, base plate 21, left roof 22, right top board 23, front side board 24 and back side panel 25 are provided with connecting screw hole 10 with permeable stone 9 contact portion center position, the through non-permeable stone material of connecting screw hole 10.The bolt supporting with screw is divided into solid bolt and hollow bolt two kinds.
Pallet 3 is the fixing formations of two orthogonal plates, and pallet 3 plate length is advisable steadily can hold sampling die 2, desirable 2/3 square sampling die 2 length of side, and pallet 3 is wide with sampling die 2, and thickness gets 5mm.Square sampling die 2 length of side of desirable 1.5 times of base 5, base 5 is wide with sampling die 2, and thickness gets 5mm.Pallet 3 and base 5 material can adopt steel or plastics.Pallet 3 is connected to base 5 upper center line by plug hinge 14, pallet 3 when base 5 rotates, outside pallet 3 with base 5 on the upside of angle can by 0 degree to 45 degree (when needs 45 degree to 90 degree, can obtain by rotating sampling die 2) change.Pallet 3, base 5 are supported by the support of high 200mm, and when guaranteeing that sampling die 2 is seated in pallet 3, left roof 22 and right top board 23 can slide in maximum magnitude along chute.
For ease of reading the inclination data of sampling die 2, fan 4 with a scale is set, fan 4 bottom is fixed on base 5 by the first set bolt 15, its scale is corresponding with the angle value between outside pallet 3 and on the upside of base 5, in the position corresponding with the second set bolt 17, deep-slotted chip breaker 16 is set, second set bolt 17 can slide in deep-slotted chip breaker 16, and after tightening the second set bolt 17, then the second set bolt 17 no longer slides.Pallet 3 by tightening the second set bolt 17 on the fan 4 of both sides, front and back in above-mentioned angular range, can be fixed on the position of needs.
The crude sedimentation of sand rain method or knockout method simulation sand is adopted in the present embodiment, mode of operation is as follows: A, filtration stand 6 is set above pallet 3, knockout funnel 7 is arranged in the funnel sliding tray 8 of filtration stand 6, filtration stand 6 and pallet 3, base 5 and base support are connected to one piece, the lateral dimension of filtration stand 6 is can guarantee that the particulate material vertically fallen in knockout funnel 7 can cover the largest horizontal cross sectional of mould, the height of filtration stand 6 can not be encountered sampling die 2 with knockout funnel 7 and be advisable, generally 500mm can be set to, knockout funnel 7 moves around and knockout along funnel sliding tray 8, finally complete sample preparation, after B, obtained sample, the sampling die 2 filling sample is arranged on the holder of permeability apparatus 1, hollow bolt (wherein arbitrary face can be selected according to actual needs) is connected with the connecting screw hole 10 of back side panel 25 by needing the base plate 21 of water flowing, left roof 22, right top board 23, front side board 24 in sampling die 2, and external rubber tube 11, connecting screw hole 10 on other faces, is screwed into solid bolt airtight, C, finally rubber tube 11 is connected permeability apparatus 1, the water that permeability apparatus 1 discharges is by rubber tube 11 and infiltrate through in sample after permeable stone 9, can carry out the test of any deposition direction sand infiltration coefficient thus.
Claims (9)
1. any deposition direction sand device for testing permeability coefficient, comprise sample preparation device and permeability apparatus, it is characterized in that: described sample preparation device comprises rectangular-shaped sampling die, pallet, fan, base, filtration stand and knockout funnel, described sampling die comprises base plate, left roof, right top board, front side board and back side panel, left roof, right top board, front side board, back side panel and base plate and sampling die cavity adjacent part are fixed with permeable stone, left roof, right top board, front side board, back side panel and base plate and permeable stone contact portion are provided with connecting screw hole, connecting screw hole links up extraneous and permeable stone, connecting screw hole is supporting solid bolt and hollow bolt, wherein solid bolt is used for sealing, hollow bolt is used for external proofed sleeve, the corresponding described left roof of described front side board and back side panel upper end and right top board offer left chute and right rail respectively, respectively with left slider and right slide block on described left roof and right top board, left slider and right slide block to be in respectively in left chute and right rail and can relative slidings, and described left roof and right top board are configured with the locking device be separately fixed on front side board and back side panel, described sampling die is arranged on pallet, pallet shape is mated with base plate, described tray bottom and base pivot joint, described fan to be fixed on base and to be in front side and/or the rear side of pallet, with arc link slot on described fan, described fan is labeled with angle index near arc link slot place, and the bar portion of the second set bolt is threaded with pallet through the arc link slot on fan, and the head diameter of described second set bolt is greater than the width of arc link slot.
2. any deposition direction sand device for testing permeability coefficient according to claim 1, is characterized in that: be provided with sealing gasket or O RunddichtringO in described left chute and right rail.
3. any deposition direction sand device for testing permeability coefficient according to claim 1 and 2, it is characterized in that: described pallet is vertically connected to form by two boards, pallet is connected on base by plug hinge, changes arbitrarily on the right side of described pallet with base angle by 0 degree to 45 degree.
4. any deposition direction sand device for testing permeability coefficient according to claim 1 and 2, it is characterized in that: the locking device on described front side board and back side panel comprises the screw hole of clamping screw and described chute upper side wall, described clamping screw is bolted in screw hole place, and after sampling die closed by described left roof and right top board, described gland nut is pressed on downwards on described left slider and right slide block.
5. any deposition direction sand device for testing permeability coefficient according to claim 3, it is characterized in that: the locking device on described front side board and back side panel comprises the screw hole of clamping screw and described chute upper side wall, described clamping screw is bolted in screw hole place, and after sampling die closed by described left roof and right top board, described gland nut is pressed on downwards on described left slider and right slide block.
6. any deposition direction sand device for testing permeability coefficient according to claim 1 and 2, it is characterized in that: on described filtration stand, cross direction profiles has strip funnel sliding tray, described knockout filtration stand is located in funnel sliding tray.
7. any deposition direction sand device for testing permeability coefficient according to claim 3, it is characterized in that: on described filtration stand, cross direction profiles has strip funnel sliding tray, described knockout filtration stand is located in funnel sliding tray.
8. any deposition direction sand device for testing permeability coefficient according to claim 4, it is characterized in that: on described filtration stand, cross direction profiles has strip funnel sliding tray, described knockout filtration stand is located in funnel sliding tray.
9. any deposition direction sand device for testing permeability coefficient according to claim 5, it is characterized in that: on described filtration stand, cross direction profiles has strip funnel sliding tray, described knockout filtration stand is located in funnel sliding tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187116.5A CN104777088B (en) | 2015-04-20 | 2015-04-20 | Any deposition direction sand device for testing permeability coefficient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187116.5A CN104777088B (en) | 2015-04-20 | 2015-04-20 | Any deposition direction sand device for testing permeability coefficient |
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| CN104777088A true CN104777088A (en) | 2015-07-15 |
| CN104777088B CN104777088B (en) | 2017-10-03 |
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| CN201510187116.5A Active CN104777088B (en) | 2015-04-20 | 2015-04-20 | Any deposition direction sand device for testing permeability coefficient |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946136A (en) * | 2019-04-11 | 2019-06-28 | 中国人民解放军军事科学院国防工程研究院 | A kind of inclined clay sample cut mold of depositional plane and its operating method |
| CN113109230A (en) * | 2021-03-30 | 2021-07-13 | 中国电建集团西北勘测设计研究院有限公司 | Novel earth and rockfill dam construction material seepage deformation test system and method |
| CN107064467B (en) * | 2017-06-07 | 2023-06-20 | 山东科技大学 | A simulation fault device for in analogue simulation test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064467B (en) * | 2017-06-07 | 2023-06-20 | 山东科技大学 | A simulation fault device for in analogue simulation test |
| CN109946136A (en) * | 2019-04-11 | 2019-06-28 | 中国人民解放军军事科学院国防工程研究院 | A kind of inclined clay sample cut mold of depositional plane and its operating method |
| CN113109230A (en) * | 2021-03-30 | 2021-07-13 | 中国电建集团西北勘测设计研究院有限公司 | Novel earth and rockfill dam construction material seepage deformation test system and method |
| CN113109230B (en) * | 2021-03-30 | 2022-11-04 | 中国电建集团西北勘测设计研究院有限公司 | Novel earth and rockfill dam construction material seepage deformation test system and method |
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| CN104777088B (en) | 2017-10-03 |
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