CN101256126B - Compression tester without disturbed soil - Google Patents
Compression tester without disturbed soil Download PDFInfo
- Publication number
- CN101256126B CN101256126B CN2008100608967A CN200810060896A CN101256126B CN 101256126 B CN101256126 B CN 101256126B CN 2008100608967 A CN2008100608967 A CN 2008100608967A CN 200810060896 A CN200810060896 A CN 200810060896A CN 101256126 B CN101256126 B CN 101256126B
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- crossbeam
- soil
- longeron
- load
- pressed
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- 239000002689 soil Substances 0.000 title claims abstract description 46
- 230000006835 compression Effects 0.000 title claims description 15
- 238000007906 compression Methods 0.000 title claims description 15
- 239000004575 stone Substances 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 5
- 238000011160 research Methods 0.000 abstract description 8
- 238000007747 plating Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Images
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- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a compressionmeter of nondisturbed soil. A crossbeam is installed on the upper of the upright post of the bottom plating, a load bearing knife edge on the upper head face of the longitudinal girder and the groove on the bottom head face of the crossbeam are matched and fixed, the balancing counter poise is placed on the short longitudinal girder, the outer frame component comprising the load disk and the hook is equipped on the bottom of the long longitudinal girder; the bottom permeable stone, the spacing ring and the cutting ring are equipped in the hole of the foundation; the inner tube is composed of three petals and is inserted into the outer tube, the inner tube is matched with the excircle of the cutting knife, one ends of three fixed poles are respectively hinged joint with foundation, the other ends are equipped with top caps and press on the head face, when the soil body is pressed into the inner tube, the permeable stone is pressed on the soil body from the top cap, the top pressure cap is pressed on the permeable stone to form a pressure cabin component. The pressure cabin component is installed on the outer frame rack component bottom plating, the crossbeam and longitudinal girder location are adjusted, the pressure column is covered into the top pressure cap, the longitudinal girder is aimed at the top pressure cap center by pressure column, which form the nondisturbed soil compressionmeter. In order to provide nondisturbed soil sample for related research, the remoulded soil can be molded and pressed therein, and forms a sample without disturbance.
Description
Technical field
The present invention relates to is a kind of soil body test unit, especially relates to a kind of compressing tester that does not have disturbed soil.
Background technology
In the research to soil strength, the intensity of the soil body level of disruption suffered with it has much relations as can be known, and the intensity of undisturbed soil sample will be much larger than disturbed sample.So many under study for action researchers explore the correlative connection between undisturbed soil sample and disturbed sample intensity, with the strength degradation degree of soil sample after the judgement disturbance.And to the level of disruption difference of soil sample, the reduction degree of intensity is also different.Will have suitable method and instrument to simulate in various degree disturbance so under study for action, and the state after the simulation of guaranteeing can rationally be kept and its intensity can accurately be tested.Compression and off-load to remoulded sample in the at present known soil disturbance analogy method are a kind of effective methods, but present existing soil body compressometer can only carry out simple compression to the soil body, and the sample that suitable size can not be provided carries out further triaxial test, and existing compressometer can produce bigger disturbance to soil sample in the sampling process after compression, and this has just influenced the accuracy of research to a great extent.
Summary of the invention
In order to solve the defective of existing soil body compressometer for disturbed sample research, the object of the present invention is to provide a kind of compressing tester that does not have disturbed soil, can controlledly compress remoulded sample, required suitable big or small soil sample in the follow-up test research is provided, and can keeps the structural of this sample not influenced by sampling disturbance in the sampling process after compression.Two kinds of different tests needs of draining and not draining in the time of also can satisfying simultaneously compression.
The technical solution adopted for the present invention to solve the technical problems is:
Comprise outer frame member and pressure storehouse parts, wherein:
1) outer frame member: comprise base plate, two root posts, crossbeam, longeron, load dish and hook; Base plate is installed two root posts, crossbeam is equipped with in two root posts upper end, the crossbeam lower surface has groove, the load-bearing edge of a knife that the longeron upper surface has, it is fixing after the load-bearing edge of a knife and crossbeam lower surface groove match, place counterpoise on the longeron minor face of the load-bearing edge of a knife one side, lower end, the long limit of the longeron of load-bearing edge of a knife opposite side is provided with load dish and hook.
2) pressure storehouse parts: comprise roof pressure cap, top cover, urceolus, inner core, cutting ring, spacing ring, base, three fixed bars, upper dankness stone and following permeable stones; Permeable stone, spacing ring down are housed in the bottom surface has the base aperture of rhone successively, cutting ring is housed in the spacing annular distance; Inner core is made of three lobes and to insert in the urceolus concordant back, top fixing, inner core length is less than urceolus length, inner core cooperates with the cutting ring cylindrical, one end of three fixed bars is hinged with base respectively, on the other end of three fixed bars top cover is housed, top cover is pressed in the urceolus end face, treats that the firming body packs in the inner core, upper dankness stone is pressed on the soil body from top cover, and the roof pressure cap that the bottom surface has rhone is pressed on the upper dankness stone.
The base of pressure storehouse parts is contained in the compression bin installation region of outer frame member base plate, adjusts crossbeam and longeron upper-lower position, pressure column is inserted in the roof pressure cap, and longeron is aimed at roof pressure cap center through pressure column, constitutes the compressing tester of no disturbed soil.
Described longeron upper surface is provided with the vertical equity bubble.Described crossbeam upper surface is provided with the transverse horizontal bubble.
The beneficial effect that the present invention has is:
Make a sizeable soil body sample, and the structural and intensity of this sample obtained reservation to the full extent, it remains in the soil body in the cutting ring and can directly weigh and measure the density of preparation sample, and is simple to operation.Can use this instrument that compression and undisturbed soil body sample are provided when soil body experimental study, carry out the research of the unperturbed soil body, manipulated soil moulding therein, pressurized there is no disturbance and become sample.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention.
Fig. 2 is the structural principle synoptic diagram of outer frame member.
Fig. 3 is the A-A front elevation of Fig. 2 outer frame member.
Fig. 4 is the right view of Fig. 2 outer frame member.
Fig. 5 is the partial sectional view of pressure storehouse parts.
Fig. 6 is the inner tube structure synoptic diagram.
Fig. 7 is the outer tube structure synoptic diagram.
Fig. 8 is the cap structure synoptic diagram.
Fig. 9 is the understructure synoptic diagram.
Among the figure: 1. base plate, 2. column, 3. crossbeam, 4. longeron, 5. load dish and hook, 6. pressure column, 7. the load-bearing edge of a knife, 8. counterpoise, 9. vertical equity bubble, 10. stop nut, 11. transverse horizontal bubble, 12. base plate mounting holes, 13. the compression bin installation region, 14. roof pressure caps, 15. top covers, 16. urceolus, 17. inner core, 18. cutting rings, 19. spacing rings, 20. bases, 21. fixed bar, 22. upper dankness stones, 23. times permeable stones.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The present invention includes outer frame member and pressure storehouse parts, wherein:
As Fig. 1, Fig. 2, shown in Figure 4, outer frame member: comprise base plate 1, two root posts 2, crossbeam 3, longeron 4, load dish and link up with 5; Base plate 1 is installed two root posts 2, crossbeam 3 is equipped with in two root posts, 2 upper ends, four stop nuts of crossbeam 3 usefulness 10 are fixing, crossbeam 3 lower surfaces have groove, the load-bearing edge of a knife 7 that longeron 4 upper surfaces have, the load-bearing edge of a knife 7 are fixing after matching with crossbeam 3 lower surface grooves, place counterpoise 8 on longeron 4 minor faces of the load-bearing edge of a knife 7 one sides, lower end, the long limit of the longeron 4 of the load-bearing edge of a knife 7 opposite sides be provided with the load dish and link up with 5, pressure column 6, be furnished with transverse horizontal bubble 11 and vertical equity bubble 9 on crossbeam 3 and the longeron 4 respectively.
As shown in Figure 5, pressure storehouse parts: comprise roof pressure cap 14, top cover 15, urceolus 16, inner core 17, cutting ring 18, spacing ring 19, base 20, three fixed bars 21, upper dankness stone 22 and following permeable stones 23.Permeable stone 23, spacing ring 19 down are housed in the bottom surface has base 20 holes of rhone successively, cutting ring 18 is housed in spacing ring 19 holes; Inner core 17 is made of three lobes and to insert in the urceolus 16 concordant back, top fixing, inner core 17 length are less than urceolus 16 length, inner core 17 cooperates with cutting ring 18 cylindricals, one end of three fixed bars 21 is hinged with base 20 respectively, top cover 15 is housed on the other end of three fixed bars 21, and top cover 15 is pressed in urceolus 16 end faces, treats that the firming body packs in the inner core 17, upper dankness stone 22 is pressed on the soil body from top cover 15, and the roof pressure cap 14 that the bottom surface has rhone is pressed on the upper dankness stone 22.
As Fig. 1, shown in Figure 3, the base 20 of pressure storehouse parts is contained in the compression bin installation region 13 of outer frame member base plate, adjust crossbeam 3 and longeron 4 upper-lower positions, the pressure column 6 that is contained in longeron 4 lower ends is inserted in roof pressure cap 14, longeron 4 is aimed at roof pressure cap 14 centers through pressure column 6, constitutes the compressing tester of no disturbed soil.
As shown in Figure 5, described longeron 4 upper surfaces are provided with vertical equity bubble 9.
As shown in Figure 9, described crossbeam 3 upper surfaces are provided with transverse horizontal bubble 11.
The course of work of the present invention is as follows:
1. install: as Fig. 2, Fig. 3, Fig. 4, shown in Figure 9, base plate 1 is installed on the reliable experiment table at two nuts of position of mounting hole 12 usefulness, make the hook 5 can be sagging from freedom on the experiment table.Three nuts of base 20 usefulness are installed on the compression installation region of base plate 13.Following permeable stone 23 is put into base and placed spacing ring 19 thereon, and spacing ring width mouth upwards.Adjust the stop nut 10 of crossbeam 3 both sides, watch transverse horizontal bubble 11, make the crossbeam level; Adjust counterpoise 8 positions of longeron 4 afterbodys, watch vertical equity bubble 9, make the longeron level.
2. one-tenth sample: as Fig. 5, Fig. 6 (a) and (b), Fig. 7 (a) and (b), Fig. 8 (a) and (b) shown in Fig. 9 (a) and (b), are combined into tubular with inner core 17 3 valves and put into urceolus 16, and with six screws inner/outer tube are fixed together.Insert cutting ring 18 in the inner/outer tube bottom side that combines, make urceolus 16, cutting ring 18 constitute a complete tubular sampler of the edge of a knife, and vaseline or butter on the tube inner side brush.This device is slowly inserted in the disturbed sample, and the limit insert edge scrapes off the soil of device periphery with blade, fills sampler fully until soil sample.Carefully scrape off the device surplus soil on nozzle surface up and down with blade and fret-saw, the sampler cutting ring is inserted in the base, place steadily.Put top cover 15 well at the urceolus upside, it is connected closely.Embed respectively with three fixed bars 21 on the base 20 in three breach of top cover, and with carrying the nut fixing compact.
3. compression: shown in Figure 5 as Fig. 1, finish install and the compression cylinder of sampling on place upper dankness stone 22, roof pressure cap 14 successively, with pressure column 6 over against roof pressure cap 14 centers.Require at the load dish or link up with suitable load and the control loaded time of loading on 5 according to research.The internal diameter that it should be noted that compression bin is 61.8mm, and the sample bearing area is 30cm
2According to lever principle, the load ratio of load Pan5Chu of the present invention and center, pressure storehouse (pressure column 6) is 1: 15, be the power that load that load Pan5Chu applies 0.2N (counterweight of 0.02kg) can produce 3N at pressure column 6 places, in the pressure storehouse, produce the pressure of 1kPa.
4. sampling: as Fig. 1, Fig. 5, Fig. 6, shown in Figure 7, after finishing the applying and unload of all pressure, remove the constraint of fixed bar 21, carefully take off the sampler that inner/outer tube and cutting ring are formed, this device is inverted on the frosted glass plate, remove the constraint screw of inner/outer tube, urceolus 16 is removed, and inner core 17 3 lobes are removed with the method for slippage.With fret-saw cutting ring and inner soil sample thereof are taken off together, use as density measurement, then (Φ=61.8mm H=180mm) can be used as the sample of further research usefulness to Sheng Xia complete cylinder soil sample.Weighing cutting ring 18 and soil sample weight wherein and cutting ring 18 weight that deduct prior weighing obtain the weight of soil sample in the cutting ring, can obtain compressing the density of back soil sample easily.The volume that it should be noted that cutting ring 18 is certain, Φ=61.8mm, and h=20mm, volume are 60cm
3
Claims (3)
1. a compressing tester that does not have disturbed soil is characterized in that, comprises outer frame member and pressure storehouse parts, wherein:
1) outer frame member: comprise base plate (1), two root posts (2), crossbeam (3), longeron (4), load dish and hook (5); Base plate (1) is installed two root posts (2), crossbeam (3) is equipped with in two root posts (2) upper end, crossbeam (3) lower surface has groove, longeron (4) upper surface has the load-bearing edge of a knife (7), the load-bearing edge of a knife (7) is fixing after matching with crossbeam (3) lower surface groove, place counterpoise (8) on longeron (4) minor face of the load-bearing edge of a knife (7) one sides, lower end, the long limit of the longeron (4) of the load-bearing edge of a knife (7) opposite side is provided with load dish and hook (5);
2) pressure storehouse parts: comprise roof pressure cap (14), top cover (15), urceolus (16), inner core (17), cutting ring (18), spacing ring (19), base (20), three fixed bars (21), upper dankness stone (22) and following permeable stone (23); Permeable stone (23), spacing ring (19) down are housed in the bottom surface has base (20) hole of rhone successively, cutting ring (18) is housed in spacing ring (19) hole; Inner core (17) is made of three lobes and inserts concordant back, the middle top of urceolus (16) and fix, inner core (17) length is less than urceolus (16) length, inner core (17) cooperates with cutting ring (18) cylindrical, one end of three fixed bars (21) is hinged with base (20) respectively, top cover (15) is housed on the other end of three fixed bars (21), top cover (15) is pressed in urceolus (16) end face, treat that the firming body packs in the inner core (17), upper dankness stone (22) is pressed on the soil body from top cover (15), and the roof pressure cap (14) that the bottom surface has rhone is pressed on the upper dankness stone (22);
The base (20) of pressure storehouse parts is contained in the compression bin installation region (13) of outer frame member base plate, adjust crossbeam (3) and longeron (4) upper-lower position, pressure column (6) is inserted in roof pressure cap (14), longeron (4) is aimed at roof pressure cap (14) center through pressure column (6), constitutes the compressing tester of no disturbed soil.
2. a kind of compressing tester that does not have disturbed soil according to claim 1 is characterized in that: described longeron (4) upper surface is provided with vertical equity bubble (9).
3. a kind of compressing tester that does not have disturbed soil according to claim 1 is characterized in that: described crossbeam (3) upper surface is provided with transverse horizontal bubble (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100608967A CN101256126B (en) | 2008-03-25 | 2008-03-25 | Compression tester without disturbed soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100608967A CN101256126B (en) | 2008-03-25 | 2008-03-25 | Compression tester without disturbed soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101256126A CN101256126A (en) | 2008-09-03 |
| CN101256126B true CN101256126B (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100608967A Expired - Fee Related CN101256126B (en) | 2008-03-25 | 2008-03-25 | Compression tester without disturbed soil |
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| CN (1) | CN101256126B (en) |
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-
2008
- 2008-03-25 CN CN2008100608967A patent/CN101256126B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3690389A (en) * | 1969-02-07 | 1972-09-12 | Roelof Van De Beld | Method and an apparatus for taking an undisturbed soil sample |
| DE4238989A1 (en) * | 1992-11-19 | 1994-05-26 | Sanierungsgesellschaft Hyzet M | Soil sampling device - has sample cutting frame equipped with turn-over device |
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| Title |
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| CN101256126A (en) | 2008-09-03 |
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