CN104181023A - Multi-split remodeling saturated soil sampling device - Google Patents
Multi-split remodeling saturated soil sampling device Download PDFInfo
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- CN104181023A CN104181023A CN201410451774.6A CN201410451774A CN104181023A CN 104181023 A CN104181023 A CN 104181023A CN 201410451774 A CN201410451774 A CN 201410451774A CN 104181023 A CN104181023 A CN 104181023A
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Abstract
The invention discloses a multi-split remodeling saturated soil sampling device which relates to the field of soil tests of civil engineering. The structure of the multi-split remodeling saturated soil sampling device is mainly as follows: sample preparation devices are arranged on an iron frame; one end of a steel wire rope is fixed on a left cross rod; the other end of the steel wire rope sequentially penetrates through the iron frame and fixed pulleys of the sample preparation devices and then is connected with the middle end of a long rod, a weight is loaded on a hook, and the hook is connected with the left end of the long rod, so that a structure for performing loading and force transferring on each sample preparation device is formed; a base, a lower water penetrating stone, a soil sample, an upper water penetrating stone, a cover plate, a vertical rod and the cross rod in each sample preparation device are sequentially connected from bottom to top in a sample preparation cylinder so that a structure for a soil sample test is formed. According to the multi-split remodeling saturated soil sampling device, a vertical pressure is applied to thin mud in each sample preparation device by using a lever principle and fixed pulley blocks, the testing time is saved for the soil test with multiple variables and long sample preparation period; one set of loading system is only required, the cost is effectively cost, and a relatively good economic practicability is achieved.
Description
Technical field
The present invention relates to civil engineering work soil test field, relate in particular to a kind of multi-joint saturated soil sample preparation device of reinventing; Be specifically related to a kind ofly for the preparation of the saturated fine grained soil sample preparation device of reinventing, be applicable to study the physico mechanical characteristic test remoulded sample preparation of water and soil chemical action.
Background technology
In engineering practice, in order to obtain the physical and mechanical parameter of the soil body, will carry out a series of shop experiment.At present, the soil sample that shop experiment adopts can be divided into undisturbed soil sample and indoor remoulded sample.Although undisturbed soil sample can reflect the prototype structure of the soil body more truly, be subject to the restriction of sampling technique and the impact of environment, its test findings is unsatisfactory, and discreteness is larger.On the contrary, not only character is relatively even, experimental result discreteness is less for indoor remoulded sample, and the condition of sample is controlled, is convenient to specific experimental study; Therefore, selected more and more at civil engineering work soil test field manipulated soil.
Existing remoulded sample technology of preparing can roughly be divided into two classes:
1, compacting process, adopts the weight of certain mass, by a certain height, is fallen, and one or more layers compacted soil samples is to required size, and this method is simple to operate, and the sample preparation time is fast, but the density of soil sample making is inhomogeneous, and its underpart compaction rate is greater than top;
2, concretion method, the thin mud that is about to stir is poured sample preparation cylinder into, and fixed by adding static load acceleration soil sample, this method can obtain the uniform soil sample of water percentage, has effectively overcome the defect of compacting process.
At present, although existing good several by the manipulated soil sample preparation device of concretion method principle design, still have some limitations.For example, indoor while studying the soil body and chemical solution interphase interaction by control variate method, need to prepare the identical and remoulded sample that solution concentration is different of dry density or preparation solution concentration is identical and remoulded sample that dry density is different etc., because the soil body is very slow with reacting of chemical solution, January at least, several months, even longer at most, and the sample preparation cycle is quite long.By existing sample preparation device, if in order to shorten the sample preparation cycle, need to prepare many cover sample preparation devices; And pressure will keep stable in whole process, hydraulic jack do not accomplish, solution is exactly preloading preferably.Under higher consolidation pressure, prepare large area soil sample, the weight of preloading is also quite large, extremely wastes counterweight and dangerous, and cost is higher, uneconomical.
Summary of the invention
Object of the present invention is just to overcome the shortcoming and defect that prior art exists, and a kind of multi-joint saturated soil sample preparation device of reinventing is provided, and is specially adapted to the soil test that variable is many, the sample preparation cycle is long.
In order to achieve the above object, technical scheme of the present invention is:
This device comprises soil sample, brandreth, stock, hook, wire rope, sample preparation device and counterweight, and its annexation is:
On brandreth, be provided with the rectangle steel plate with circular groove, sample preparation device is placed in circular groove; The right and left at rectangle steel plate is respectively arranged with quarter butt and fixed pulley thereof; Left surface at brandreth is provided with left cross bar, and one end of wire rope is fixed on left cross bar; Right flank at support is provided with right cross bar, on right cross bar, is provided with jaw, and the right-hand member of stock is connected with jaw; The other end of wire rope is connected with the middle-end of stock after the fixed pulley through brandreth and sample preparation device successively, and it is upper that counterweight is carried in hook, and hook is connected with the left end of stock, the structure of composition to sample preparation device loading and power transmission;
Sample preparation device comprises cover plate, base, sample preparation cylinder, lower permeable stone, upper dankness stone, montant and cross bar; In sample preparation cylinder, from top to bottom, base, lower permeable stone, soil sample, upper dankness stone, cover plate, montant are connected successively with cross bar, and the inwall of cover plate and sample preparation cylinder forms being slidably matched of piston form, form the structure to soil sample experiment.
Compared with prior art, the present invention has following advantages and good effect:
1. utilize lever principle and fixed pulley group to apply vertical pressure to the thin mud in sample preparation device, even if prepare large area soil sample under higher consolidation pressure, still only need a small amount of counterweight, effectively avoided preloading expense counterweight and hidden danger; On the other hand, sample preparation device material adopts organic glass, and it is easy compared with steel to process, and more corrosion-resistant.
2. nearly four sample preparation devices can be installed, to a great extent for test period has been saved in the soil test that variable is many, the sample preparation cycle is long on brandreth simultaneously; And revise slightly brandreth size, and more sample preparation device can be installed, be the facility that more multivariate, the soil test in longer sample preparation cycle provide.
3. according to predetermined dry density, can extrapolate sedimentation value, then set the bolt height of splitting round mould top, when cross bar sinks down into target sedimentation value, just supported, can not sink again, can make even, the up to standard saturated soil sample of reinventing, effectively reduce the labour intensity of personal monitoring's sedimentation.
4. whole sample preparation device only needs a set of loading system, for existing technology, effectively reduces cost, has good economic and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of brandreth;
Fig. 3 is the structural representation of rectangle steel plate;
Fig. 4 is the structural representation of stock;
Fig. 5 is the structural representation of sample preparation device;
Fig. 6 is the structural representation of cover plate;
Fig. 7 is the structural representation of base;
Fig. 8 .1 is the structural representation (whole) of sample preparation cylinder;
Fig. 8 .2 is the structural representation (half) of sample preparation cylinder.
Fig. 9 is the structural representation of cross bar;
In figure:
000-soil sample.
100-brandreth,
110-rectangle steel plate,
111-steel plate quarter butt, 112-steel plate fixed pulley;
120-left cross bar;
130-right cross bar;
140-jaw.
200-stock,
210-left screw;
220-middle screw;
230-right screw;
D-suspension ring;
L-bolt.
300-hook.
400-wire rope.
500-sample preparation device,
510-cover plate,
511-cover plate vent port, 512-cover plate groove, 513-cover plate water stop gel ring;
520-base,
521-little round platform, 522-large round platform, 523-base vent port,
524-screw, 525-base groove, 526-base water stop gel ring;
530-sample preparation cylinder,
531-split round mould, 532-cuff, 533-circle mould groove,
534-circle mould sealing adhesive tape, 535-bolt, 536-nut;
537-screw.
540-lower permeable stone;
550-upper dankness stone;
560-montant;
570-cross bar, 571-cross bar fixed pulley.
600-counterweight.
Embodiment
Below in conjunction with drawings and Examples, describe in detail:
One, device
1, overall
As Fig. 1-9, this device comprises soil sample 000, brandreth 100, stock 200, hook 300, wire rope 400, sample preparation device 500 and counterweight 600, and its annexation is:
On brandreth 100, be provided with the rectangle steel plate 110 with circular groove, sample preparation device 500 is placed in circular groove; The right and left at rectangle steel plate 110 is respectively arranged with quarter butt 111 and fixed pulley 112 thereof; Left surface at brandreth 100 is provided with left cross bar 120, and one end of wire rope 400 is fixed on left cross bar 120; Right flank at support is provided with right cross bar 130, on right cross bar 130, is provided with jaw 140, and the right-hand member of stock 200 is connected with jaw 140; The other end of wire rope 400 is connected with the middle-end of stock 200 after the fixed pulley through brandreth 100 and sample preparation device 500 successively, and counterweight 600 is carried on hook 300, and hook 300 is connected with the left end of stock 200, forms the structure to sample preparation device 500 loadings and power transmission;
Sample preparation device 500 comprises cover plate 510, base 520, sample preparation cylinder 530, lower permeable stone 540, upper dankness stone 550, montant 560 and cross bar 570; In sample preparation cylinder 530, from top to bottom, base 520, lower permeable stone 540, soil sample 000, upper dankness stone 550, cover plate 510, montant 560 and cross bar 570 are connected successively, and cover plate 510 forms being slidably matched of piston form with the inwall of sample preparation cylinder 530, forms the structure to soil sample 000 experiment.
2, functional part
1) brandreth 100
As Fig. 2, Fig. 3, brandreth 100 is supporters of this device, is rectangle;
On brandreth 100, be provided with four with the rectangle steel plate 110 of circular groove, sample preparation device 500 is placed in circular groove;
The right and left at rectangle steel plate 110 is respectively arranged with quarter butt 111 and fixed pulley 112 thereof;
Left surface at brandreth 100 is provided with left cross bar 120, and one end of wire rope 400 is fixed on left cross bar 120;
Right flank at support is provided with right cross bar 130, on right cross bar 130, is provided with jaw 140, and the right-hand member of stock 200 is connected with jaw 140;
The other end of wire rope 400 is connected with the middle-end of stock 200 after the fixed pulley through brandreth 100 and sample preparation device 500 successively.
2) stock 200
As Fig. 4, stock 200 is a kind of long metal bars, is provided with along its length left, center, right screw 210,220,230 on stock, by suspension ring D or bolt L, is connected respectively with hook 300, wire rope 400 with brandreth 100.
3) hook 300
As Fig. 1, hook 300 is general part.
4) wire rope 400
As Fig. 1, wire rope 400 is general part.
5) sample preparation device 500
As Fig. 5, sample preparation device 500 comprises cover plate 510, base 520, sample preparation cylinder 530, lower permeable stone 540, upper dankness stone 550, montant 560 and cross bar 570;
In sample preparation cylinder 530, from top to bottom, base 520, lower permeable stone 540, soil sample 000, upper dankness stone 550, cover plate 510, montant 560 and cross bar 570 are connected successively, and cover plate 510 forms being slidably matched of piston form with the inwall of sample preparation cylinder 530.
1. cover plate 510
As Fig. 6, cover plate 510 is a kind of plectanes, is provided with a vent port 511 on plectane, at the circumference of plectane, is provided with cover plate groove 512 and cover plate water stop gel ring 513.
2. base 520
As Fig. 7, base 520 comprises bilevel roundlet platform 521 and large round platform 522, in roundlet platform 521 central authorities and large round platform 522 peripheries, be provided with the L-shaped base vent port 523 of UNICOM each other, in the left and right of large round platform 521, be provided with the screw 524 that connects sample preparation cylinder 530, at the circumference of roundlet platform 521, be provided with base groove 525 and base water stop gel ring 526.
3. sample preparation cylinder 530
As Fig. 8 .1,8.2, sample preparation cylinder 530 is a cylinder, splits round mould 531 assembled, additional cuff 532 by two;
At the assembling part of splitting round mould 531, be provided with round mould groove 533 and circle mould sealing adhesive tape 534;
At the top of splitting round mould 531, be provided with bolt 535 and nut 536, the sinking height of predeterminable cross bar 570;
In the bottom of splitting round mould 531, be provided with base 520 and connect corresponding screw 537.
4. descend permeable stone 540
Lower permeable stone 540 is cylindrical, its internal diameter and sample preparation cylinder 530 adaptations.
5. upper dankness stone 550
Upper dankness stone 550 is cylindrical, its internal diameter and sample preparation cylinder 530 adaptations.
6. montant 560
Montant 560 comprises the two vertical metal bars in left and right, connects cover plate 510 and cross bar 570, transmission of pressure.
7. cross bar 570
As Fig. 9, cross bar 570 is a kind of horizontal metal bars, and two ends are provided with cross bar fixed pulley 571.
6) counterweight 600
Counterweight 600 is general part, comprises the external member of various weight.
Two, method of operating
The method of operating of this device comprises the following steps:
1. connect base 520 and sample preparation cylinder 530
To be stained with the wet filter paper of solution and be attached on lower permeable stone 540, and be put in cover and have on the base 520 of base water stop gel ring 526, Shi Qi center is aimed at; By what be embedded with round mould sealing adhesive tape 534, two split 531 alignment of round mould, close up, tighten cuff 532; By splitting sample preparation cylinder 530 inserted bases 520 that form after round mould 531 closes up, with bolt, connect between the two; The vent port 523 of base 520 connects pagoda mouth, and inserts water conduction rubber hose.
2. test slurrying
Dry density as required takes the soil sample 000 of certain mass, adds solution, is prepared into the thin mud that is greater than liquid limit.
3. thin mud is poured into sample preparation cylinder 530
The thin mud that is greater than liquid limit of above-mentioned preparation is poured in sample preparation cylinder 530, to target scale.
4. cover plate 510 is installed and is set settling height
First on upper dankness stone 550, paste wet filter paper, then be placed on the top of thin mud, by passing through two montants 560 cover plate 510 connecting and the force transferring structure that cross bar 570 forms, embed in sample preparation cylinder 530 again, screw on bolt 535 and nut 536, and according to the height of target sedimentation value setting bolt 535; Finally in the pagoda mouth end of cover plate vent port 511, connect water conduction rubber hose; By identical step, complete the installation of four sample preparation devices 500.
5. loading system is installed
The right-hand member of stock 200 and brandreth 100 is hinged, left end hanging hook 300; One end of wire rope 400 is fixed on the left cross bar 120 of brandreth 100, and the other end of wire rope 400 is connected with the middle-end of stock 200 after the fixed pulley through brandreth 100 and sample preparation device 500 successively.
6. load
According to the consolidation pressure of setting, corresponding counterweight is placed on hook 300.
7. load and finish
When soil sample sedimentation value reaches desired value, bolt 535 can stop cross bar 570 to sink automatically; Unloading and the wire rope 400 of dismantling, sample preparation device 500 is taken off from brandreth 100, keep flat, unclamp the coupling bolt between base 520 and sample preparation cylinder 530, unclamp cuff 532, will split round mould 531 and take apart, take out lower permeable stone 540 and upper dankness stone 550, cut cutting ring sample, can make remoulded sample even, up to standard.
Three, embodiment
The size of device shown in the present is to be diameter 6.18cm for manufactured size, the staight scissors of high 2cm, fixed sample, and change device each several part size can be made other size samples.
As Fig. 4, stock 200 is drilled with the screw that three diameters are 0.8cm, is hinged successively with hook 300, wire rope 400 and brandreth 100, and the brake leverage of formation is 1:5.The weight that is placed on the counterweight 600 on hook 300 by change, offers the different consolidation pressure of remoulded sample in sample preparation device 500.
As Fig. 5～9, sample preparation cylinder 530 is by internal diameter 10cm, and wall thickness 2cm splits the assembled organic glass hollow cylinder of round mould 531 for two of high 30cm, embeds circle mould sealing adhesive tape 534 therebetween, prevents mud loss, additional cuff 532; Split round mould 531 top bolt 535 stroke 5cm; Base 520 is by roundlet platform 521 and round platform 522 is overlapping greatly forms, large round platform 522 diameter 14cm, and thick 2cm, is drilled with the bolt hole that two diameters are 0.8cm, for being connected with sample preparation cylinder 530; Roundlet platform 521 diameter 9.9cm, thick 2cm, is provided with the base groove 525 of twice 0.2 * 0.2cm, for laying base water stop gel ring 526; In base 520 inside, being provided with diameter is the base vent port 523(L shape of 1cm); Cover plate 510 is the poly (methyl methacrylate) plate of diameter 9.9cm, thick 2cm, is provided with cover plate 512 grooves 512 of 0.2 * 0.2cm together, and for laying cover plate water stop gel ring 513, being drilled with diameter is the vent port 511 of 1cm; Upper dankness stone 550 and lower permeable stone 540 are diameter 9.9cm, the right cylinder of high 1cm.
In the example that this device provides, the height of sample preparation cylinder is 30cm, and internal diameter is 10cm, and after considering soil sample discharging consolidation, a sample preparation can cut 6 cutting ring samples, for staight scissors and consolidation test, can meet the needed test soil sample number that gets parms.
Claims (5)
1. the multi-joint saturated soil sample preparation device of reinventing, is characterized in that:
Comprise soil sample (000), brandreth (100), stock (200), hook (300), wire rope (400), sample preparation device (500) and counterweight (600), its annexation is:
On brandreth (100), be provided with the rectangle steel plate (110) with circular groove, sample preparation device (500) is placed in circular groove; The right and left at rectangle steel plate (110) is respectively arranged with quarter butt (111) and fixed pulley (112) thereof; Left surface at brandreth (100) is provided with left cross bar (120), and one end of wire rope (400) is fixed on left cross bar (120); Right flank at support is provided with right cross bar (130), is provided with jaw (140) on right cross bar (130), the right-hand member of stock (200) and jaw (140 are connected); The other end of wire rope (400) is connected with the middle-end of stock (200) after the fixed pulley through brandreth (100) and sample preparation device (500) successively, counterweight (600) is carried on hook (300), hook (300) is connected with the left end of stock (200), forms the structure to sample preparation device (500) loading and power transmission;
Sample preparation device (500) comprises cover plate (510), base () 520, sample preparation cylinder (530), lower permeable stone (540), upper dankness stone (550), montant (560) and cross bar (570); In sample preparation cylinder (in 530), from top to bottom, base (520), lower permeable stone (540), soil sample (000), upper dankness stone (550), cover plate (510), montant (560) and cross bar (570) are connected successively, cover plate (510) forms being slidably matched of piston form with the inwall of sample preparation cylinder (530), forms the structure to soil sample (000) experiment.
2. by a kind of multi-joint saturated soil sample preparation device of reinventing claimed in claim 1, it is characterized in that:
Described stock (200) is a kind of long metal bar, on stock, be provided with along its length left, center, right screw (210,220,230), by suspension ring (D) or bolt (L), be connected with brandreth (100) with hook (300), wire rope (400) respectively.
3. by a kind of multi-joint saturated soil sample preparation device of reinventing claimed in claim 1, it is characterized in that:
Described cover plate (510) is a kind of plectane, is provided with a vent port (511) on plectane, at the circumference of plectane, is provided with cover plate groove (512) and cover plate water stop gel ring (513).
4. by a kind of multi-joint saturated soil sample preparation device of reinventing claimed in claim 1, it is characterized in that:
Described base (520) comprises bilevel little round platform (521) and large round platform (522), in little round platform (521) central authorities and large round platform (522) periphery, be provided with the L-shaped base vent port (523) of UNICOM each other, in the left and right of large round platform (521), be provided with the screw (524) that connects sample preparation cylinder (530), at the circumference of little round platform (521), be provided with base groove (525) and base water stop gel ring (526).
5. by a kind of multi-joint saturated soil sample preparation device of reinventing claimed in claim 1, it is characterized in that:
Described sample preparation cylinder (530 is a cylinder), splits round mould (531) by two assembled, additional cuff (532);
At the assembling part of splitting round mould (531), be provided with round mould groove (533) and circle mould sealing adhesive tape (534);
At the top of splitting round mould (531), be provided with bolt (535) and nut (536);
In the bottom of splitting round mould (531), be provided with base (520) and connect corresponding screw (537).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410451774.6A CN104181023B (en) | 2014-09-05 | 2014-09-05 | Multi-joint reinvent saturated soil sample preparation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410451774.6A CN104181023B (en) | 2014-09-05 | 2014-09-05 | Multi-joint reinvent saturated soil sample preparation device |
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| CN104181023A true CN104181023A (en) | 2014-12-03 |
| CN104181023B CN104181023B (en) | 2016-09-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106198144A (en) * | 2016-07-19 | 2016-12-07 | 温州大学 | Manipulated soil vacuum load associating sample preparation device |
| CN106248453A (en) * | 2016-08-09 | 2016-12-21 | 河海大学常州校区 | A kind of preparation of soil sample device and preparation method |
| CN106323711A (en) * | 2016-08-09 | 2017-01-11 | 河海大学常州校区 | Soil sample preparation device and method |
| CN106644880A (en) * | 2016-11-25 | 2017-05-10 | 天津大学 | Seepage air pressure consolidation apparatus |
| CN106769500A (en) * | 2016-11-25 | 2017-05-31 | 天津大学 | A kind of ground permeates the test method of gas pressure consolidation |
| CN107884247A (en) * | 2017-12-23 | 2018-04-06 | 郑州大学 | A kind of cutting ring sample preparing device and its application method |
| CN111141572A (en) * | 2020-02-26 | 2020-05-12 | 长安大学 | Pre-consolidation device and method for floating type remolded soft clay |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198144A (en) * | 2016-07-19 | 2016-12-07 | 温州大学 | Manipulated soil vacuum load associating sample preparation device |
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| CN106644880A (en) * | 2016-11-25 | 2017-05-10 | 天津大学 | Seepage air pressure consolidation apparatus |
| CN106769500A (en) * | 2016-11-25 | 2017-05-31 | 天津大学 | A kind of ground permeates the test method of gas pressure consolidation |
| CN107884247A (en) * | 2017-12-23 | 2018-04-06 | 郑州大学 | A kind of cutting ring sample preparing device and its application method |
| CN111141572A (en) * | 2020-02-26 | 2020-05-12 | 长安大学 | Pre-consolidation device and method for floating type remolded soft clay |
| CN111141572B (en) * | 2020-02-26 | 2023-10-31 | 长安大学 | Pre-consolidation device and method for floating remolded soft clay |
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|---|---|
| CN104181023B (en) | 2016-09-21 |
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