CN105806677A - Preparation device and preparation method for reinforced triaxial soil sample - Google Patents
Preparation device and preparation method for reinforced triaxial soil sample Download PDFInfo
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- CN105806677A CN105806677A CN201610291116.4A CN201610291116A CN105806677A CN 105806677 A CN105806677 A CN 105806677A CN 201610291116 A CN201610291116 A CN 201610291116A CN 105806677 A CN105806677 A CN 105806677A
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- soil sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a preparation device and a preparation method for a reinforced triaxial soil sample. The preparation device for the reinforced triaxial soil sample comprises a base, a plastic film and at least two arc plates, wherein the bottoms of the arc plates are all mounted on the base; the arc plates are encircled into a cylindrical soil sample drum; adjacent lateral parts of the two adjacent arc plates are not in contact with each other and are formed into a fine crack; the plastic film is arranged in the soil sample drum; an end part of the plastic film is fixed in the fine crack; preservative films are covered on the inner surface walls of the arc plates facing to the interior of the soil sample drum. The preparation method for the reinforced triaxial soil sample comprises the following steps: A) installing the preparation method for the reinforced triaxial soil sample and coating lubricating oil on the side walls of the preservative films of all the arc plates; B) respectively pouring soil materials into the soil sample drum formed by all the arc plates and adopting a compaction device for layering and compacting the soil materials, thereby forming the reinforced cylindrical soil sample. According to the preparation method provided by the invention, reinforced triaxial soil samples on different positions and in different quantity can be prepared and the diversification requirement of test can be met.
Description
Technical field
The present invention relates to geotechnique's laboratory test technical field, particularly relate to a kind of reinforcement three axle preparation of soil sample device and preparation method.
Background technology
Reinforced earth concept is to put forward early 1960s, by Study on Triaxial Tests soil mixes the material of fiber, discovery soil strength improves, from then on this composite is named as reinforced earth, research reinforced earth Reinforced Mechanism research means the most widely is triaxial compression test, how preparing reinforcement three axle soil sample is the essential step accurately carrying out reinforced earth Study on Triaxial Tests, and research reinforced earth strain-stress relation, deformation failure characteristic and intensity reinforcement effects are had great importance.
The study general of reinforced earth carries out exploration and analysis when ordinary triaxial test, the reinforced earth theory proposed at present is also based on ordinary triaxial test, reinforcement three axle soil sample be prepared by the ring that experimental study is important, but, existing reinforcement three axle preparation of soil sample device lacks, and method is incomplete, inefficiency, constrain the research of reinforced earth Reinforced Mechanism so that theoretical research lags significantly behind engineering practice.Therefore, in order to solve the problem that existing reinforcement three axle preparation of soil sample device and method falls behind, it is provided that a kind of reinforcement three axle preparation of soil sample device and test method, imperative.
Summary of the invention
For the weak point that prior art exists, it is an object of the invention to provide a kind of reinforcement three axle preparation of soil sample device and preparation method, it is used for the reinforcement three axle soil sample preparing diverse location and varying number rapidly and efficiently, meet the diversified requirement of test, improve scientific research level, have reasonable in design, rapidly and efficiently, the advantage such as easy and simple to handle and energy-conserving and environment-protective.
The purpose of the present invention is achieved through the following technical solutions:
A kind of reinforcement three axle preparation of soil sample device, including base, plastic sheeting and at least two arc plate, it is mounted on base bottom all of arc plate, all arc plates surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates not in contact with and constitute thin seam, being provided with plastic sheeting in described soil sample tube, the end of described plastic sheeting is fixed in thin seam；All arc plates are all covered with preservative film on the inner surface wall in soil sample tube cylinder.
In order to realize the present invention better, the quantity of described arc plate is six, the bottom of six arc plates is mounted on base, six arc plates surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates not in contact with and constitute thin seam, six arc plates constitute six thin seams, are provided with three plastic sheetings in described soil sample tube, and the end, two ends of each plastic sheeting is corresponding respectively to be fixed in two thin seams in soil sample tube；Six arc plates are all covered with preservative film on the inner surface wall in soil sample tube cylinder.
Realize more easily removably connecting with base for the ease of circular draw-in groove, described base has circular draw-in groove, be all connected in bottom all of arc plate in circular draw-in groove.
So that soil sample tube middle and upper part has the tube inner chamber diameter same with soil sample tube bottom, outside the soil sample tube that all arc plates are constituted, closely it is set with several annular sleeve.
This reinforcement three axle preparation of soil sample device also includes compaction apparatus, and described compaction apparatus includes thin bar and is fixedly connected on the squeeze board bottom thin bar, is provided with film square bottom described squeeze board, and the length value of described thin bar is more than the height value of soil sample tube.
As preferably, described annular sleeve quantity is one, and this annular sleeve is arranged at the medium position outside soil sample tube.
As preferably, the diameter of the circular draw-in groove of described base is identical with the bottom cylindrical face circular diameter of the soil sample tube that all arc plates are constituted, and it is 0.5cm that described circular card geosynclinal concave sinks into the degree of depth in base.
As preferably, the thin seam width that the adjacent side edge of adjacent two arc plates is constituted is 0.1cm.
A kind of reinforcement three axle preparation of soil sample method, including reinforcement three axle preparation of soil sample device, its method is as follows:
A, install reinforcement three axle preparation of soil sample device, coating lubricating oil on the preservative film side of all arc plates；
B, earth material is poured into respectively in the soil sample tube being made up of all arc plates, utilize compaction apparatus compaction in layers earth material, until inside is with the Stiffened Cylindrical shape soil sample molding of plastic sheeting, slowly disassemble arc plate one by one again, take out Stiffened Cylindrical shape soil sample, prune away unnecessary material, thus completing the preparation of reinforcement three axle soil sample.
The present invention compared with the prior art, has the following advantages and beneficial effect:
(1) present invention is possible not only in reinforcement three axle soil sample to add plastic sheeting, it is also possible to adds the materials such as geotextiles, it is achieved the purpose of the multiple material reinforcement three axle preparation of soil sample, meets the diversified requirement of test；The present invention is by the use of preservative film, film square and lubricating oil, it is prevented that during sampling, the disturbance of cylindrical soil sample is destroyed, improves the precision of the preparation of soil sample, decrease artificial test error.
(2) this reinforcement three axle preparation of soil sample apparatus structure is simple, it is simple to carrying, processing cost is low, it is easy to producing and popularization and application in teaching；Sample preparation device and method rapidly and efficiently, improve the efficiency of test；This sample preparation device and method have important practice significance and significance of scientific research for reinforced earth triaxial test.
Accompanying drawing explanation
Fig. 1 is the front view of reinforcement three axle preparation of soil sample device；
Fig. 2 is the top view of reinforcement three axle preparation of soil sample device；
Fig. 3 is the close-up schematic view of Fig. 2.
Wherein, the name corresponding to accompanying drawing labelling in accompanying drawing is called:
1-arc plate, 2-plastic sheeting, 3-thin bar, 4-annular sleeve, 5-squeeze board, 6-film square, 7-base, 8-circle draw-in groove, 9-preservative film, 10-carefully stitches.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment
As shown in FIG. 1 to 3, a kind of reinforcement three axle preparation of soil sample device, including base 7, plastic sheeting 2 and at least two arc plate 1, it is mounted on base 7 bottom all of arc plate 1, all arc plates 1 surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates 1 not in contact with and constitute thin seam 10, (plastic sheeting 2 of the present invention could alternatively be geotextiles or other reinforcement material to be provided with plastic sheeting 2 in soil sample tube, reinforcement three axle preparation of soil sample device be possible not only in soil sample add plastic sheeting can also add the materials such as geotextiles, realize the purpose of the multiple material reinforcement three axle preparation of soil sample, and simple in construction, it is easy to carry, processing cost is low, it is prone to producing and popularization and application in teaching.), the end of plastic sheeting 2 is fixed in thin seam 10；The plastic sheeting 2 of the present invention is fixed on thin seam 10 by glue, and ensures time fixing that plastic sheeting 2 has certain tension force.All arc plates 1 are all covered with preservative film 9 on the inner surface wall in soil sample tube cylinder, all preservative film 9 sizes are all identical with each arc plate 1, and each preservative film 9 is attached to the inwall of corresponding arc plate 1, during sample preparation, coating lubricating oil outside preservative film 9, it is prevented that destroy cylindrical soil sample during sampling.
As shown in Figure 1 and Figure 2, the quantity of the preferred arc plate 1 of the present embodiment is six, and the bottom of six arc plates 1 is mounted on base 7, and the base 7 of the present embodiment has circular draw-in groove 8, is all connected in circular draw-in groove 8 bottom six arc plates 1；Base 7 upper surface is provided with circular draw-in groove 8, and circular draw-in groove 8 is used for fixing all of arc plate 1.Six arc plates 1 surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates 1 not in contact with and constitute thin seam 10, as shown in Figure 2, six arc plates 1 constitute six thin seams 10, three plastic sheetings 2 it are provided with, in corresponding two the thin seams 10 being fixed in soil sample tube respectively of the end, two ends of each plastic sheeting 2 in soil sample tube.
The diameter of the circular draw-in groove 8 of the present embodiment base 7 is identical with the bottom cylindrical face circular diameter of the soil sample tube that all arc plates 1 are constituted, namely the bottom cylindrical face that the diameter of circular draw-in groove 8 and 6 arc plates 1 surround is justified identical, it is 0.5cm that circular draw-in groove 8 is depressed in the degree of depth in base 7, it is possible to better fix all arc plates 1.Thin seam 10 width that the adjacent side edge of adjacent two arc plates 1 of the present embodiment is constituted are 0.1cm, thin seam 10 is for the material such as fixed plastics thin film 2 or geotextiles, configuration by six thin seams 10, it is possible to achieve the three axle preparations of soil sample of diverse location and varying number reinforcement.
As in figure 2 it is shown, the corresponding relation between the preferred arc plate of the present embodiment 1 and thin seam 10 is as follows:
Each arc plate 1 is 1/6th of a full circle, and namely arc plate 1 is 1/6th circular arcs；Six thin seam 10 number consecutivelies are A, B, C, D, E, F by the present embodiment, the equal diameters that the length of one of them plastic sheeting 2 is circular with soil sample tube cross section, this plastic sheeting 2 one end end is fixed in the thin seam 10 being numbered C, and this plastic sheeting 2 other end end is fixed in the thin seam 10 being numbered F；The length of two other plastic sheeting 2 is equal, end, plastic sheeting 2 one end therein is fixed in the thin seam 10 being numbered B, this plastic sheeting 2 other end end is fixed in the thin seam 10 being numbered A, another end, plastic sheeting 2 one end is fixed in the thin seam 10 being numbered D, and this plastic sheeting 2 other end end is fixed in the thin seam 10 being numbered E.Six arc plates 1 are all covered with preservative film 9 on the inner surface wall in soil sample tube cylinder.After 2 three plastic sheetings 2 of plastic sheeting of two equal plastic sheetings of length 2 and a length and soil sample tube cross section circle equal diameters are set according to mode as shown in Figure 2, three plastic sheeting 2 uniform parallel arrangements, three plastic sheetings 2 are as the reinforced structure of Stiffened Cylindrical shape soil sample, a kind of Stiffened Cylindrical shape soil sample can be obtained, certain present invention can also arrange the plastic sheeting 2 of varying number and diverse location, a variety of Stiffened Cylindrical shape soil sample can be obtained, enrich Stiffened Cylindrical shape soil sample test kind, meet the diversified requirement of test.
Closely being set with several annular sleeve 4 outside the soil sample tube that all arc plates 1 are constituted, as it is shown in figure 1, annular sleeve 4 quantity of the present embodiment is one, this annular sleeve 4 is arranged at the medium position outside soil sample tube；The annular sleeve 4 of the present embodiment is positioned at the centre position of all arc plate 1 outer surfaces, for fixing six identical arc plates 1.
This reinforcement three axle preparation of soil sample device also includes compaction apparatus, after adding earth material in soil sample tube, compaction apparatus can serve as the purpose of compaction in layers earth material, compaction apparatus includes thin bar 3 and is fixedly connected on the squeeze board 5 bottom thin bar 3, film square 6 is installed bottom squeeze board 5, film square 6 is pasted on the bottom of squeeze board 5, it is prevented that the bottom of squeeze board 5 affixes soil particle；The length value of thin bar 3 is more than the height value of soil sample tube, the thin bar 3 length long enough of the present embodiment, it is ensured that can better compacted samples.
The present invention is as follows for the operational approach step preparing reinforcement three axle soil sample:
A, shown in Fig. 1, install reinforcement three axle preparation of soil sample device, before test, first require to determine the kind of the materials such as added plastic sheeting 2 or geotextiles according to testing program, and added position and quantity；
B, by the grafting of six arc plates 1 or being connected in the circular draw-in groove 8 of base 7, and paste preservative film 9 respectively on six arc plate 1 inwalls, then coating lubricating oil outside preservative film 9, the purpose of coating lubricating oil is convenient taking-up Stiffened Cylindrical shape soil sample, then utilize glue to be fixed on thin seam 10 by plastic sheeting 2 materials such as (or) geotextiles, time fixing, ensure that plastic sheeting 2 materials such as (or) geotextiles has certain tension force；
C, weigh up a certain amount of earth material and pour in each interior room of soil sample tube being made up of six arc plates 1 and plastic sheeting 2 materials such as (or) geotextiles respectively, utilize the squeeze board 5 compaction in layers soil sample of compaction apparatus, until Stiffened Cylindrical shape soil sample molding, slowly lay down arc plate 1 one by one again, take out cylindrical soil sample, prune away unnecessary material, thus completing the preparation of reinforcement three axle soil sample；
D, tested after, clean the attachment on base 7 and arc plate 1 with hairbrush, in order to carry out test next time.
A kind of reinforcement three axle preparation of soil sample method, including reinforcement three axle preparation of soil sample device, its method is as follows:
A, install reinforcement three axle preparation of soil sample device, coating lubricating oil on preservative film 9 side of all arc plates 1；
B, earth material is poured into respectively in the soil sample tube being made up of all arc plates 1, utilize compaction apparatus compaction in layers earth material, until inside is with the Stiffened Cylindrical shape soil sample molding of plastic sheeting 2, slowly disassemble arc plate 1 one by one again, take out Stiffened Cylindrical shape soil sample, prune away unnecessary material, thus completing the preparation of reinforcement three axle soil sample.
Above-mentioned embodiment is a preferred embodiment of the present invention; it is not for limiting the enforcement of the present invention and interest field; all equivalences made according to the content described in the present patent application scope of patent protection change and approximate replacement, all should be within the scope of the present invention.
Claims (9)
1. a reinforcement three axle preparation of soil sample device, it is characterized in that: include base (7), plastic sheeting (2) and at least two arc plate (1), all of arc plate (1) bottom is mounted on base (7), all arc plates (1) surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates (1) not in contact with and constitute thin seam (10), being provided with plastic sheeting (2) in described soil sample tube, the end of described plastic sheeting (2) is fixed in thin seam (10)；All arc plates (1) are all covered with preservative film (9) on the inner surface wall in soil sample tube cylinder.
2. the reinforcement three axle preparation of soil sample device described in claim 1, it is characterized in that: the quantity of described arc plate (1) is six, the bottom of six arc plates (1) is mounted on base (7), six arc plates (1) surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of adjacent two arc plates (1) not in contact with and constitute thin seam (10), six arc plates (1) constitute six thin seams (10), three plastic sheetings (2) it are provided with in described soil sample tube, the end, two ends of each plastic sheeting (2) is corresponding respectively to be fixed in two thin seams (10) in soil sample tube；Six arc plates (1) are all covered with preservative film (9) on the inner surface wall in soil sample tube cylinder.
3. the reinforcement three axle preparation of soil sample device described in claim 1 or 2, it is characterised in that: having circular draw-in groove (8) on described base (7), all of arc plate (1) bottom is all connected in circular draw-in groove (8).
4. the reinforcement three axle preparation of soil sample device described in claim 1, it is characterised in that: closely it is set with several annular sleeve (4) outside the soil sample tube that all arc plates (1) are constituted.
5. the reinforcement three axle preparation of soil sample device described in claim 1 or 2, it is characterized in that: also include compaction apparatus, described compaction apparatus includes thin bar (3) and is fixedly connected on the squeeze board (5) of thin bar (3) bottom, described squeeze board (5) bottom is provided with film square (6), and the length value of described thin bar (3) is more than the height value of soil sample tube.
6. the reinforcement three axle preparation of soil sample device described in claim 4, it is characterised in that: described annular sleeve (4) quantity is one, and this annular sleeve (4) is arranged at the medium position outside soil sample tube.
7. the reinforcement three axle preparation of soil sample device described in claim 3, it is characterized in that: the diameter of the circular draw-in groove (8) of described base (7) is identical with the bottom cylindrical face circular diameter of the soil sample tube that all arc plates (1) are constituted, the degree of depth that described circular draw-in groove (8) is depressed in base (7) is 0.5cm.
8. the reinforcement three axle preparation of soil sample device described in claim 1 or 2, it is characterised in that: thin seam (10) width that the adjacent side edge of adjacent two arc plates (1) is constituted is 0.1cm.
9. a reinforcement three axle preparation of soil sample method, it is characterised in that: including reinforcement three axle preparation of soil sample device, its method is as follows:
A, install reinforcement three axle preparation of soil sample device, coating lubricating oil on preservative film (9) side of all arc plates (1)；
B, earth material is poured into respectively in the soil sample tube being made up of all arc plates (1), utilize compaction apparatus compaction in layers earth material, until inside is with the Stiffened Cylindrical shape soil sample molding of plastic sheeting (2), slowly disassemble arc plate (1) one by one again, take out Stiffened Cylindrical shape soil sample, prune away unnecessary material, thus completing the preparation of reinforcement three axle soil sample.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610291116.4A CN105806677B (en) | 2016-05-04 | 2016-05-04 | Three axis preparation of soil sample device of reinforcement and preparation method |
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| CN201610291116.4A CN105806677B (en) | 2016-05-04 | 2016-05-04 | Three axis preparation of soil sample device of reinforcement and preparation method |
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| CN105806677A true CN105806677A (en) | 2016-07-27 |
| CN105806677B CN105806677B (en) | 2018-08-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706449A (en) * | 2016-12-29 | 2017-05-24 | 中国电建集团华东勘测设计研究院有限公司 | Bulldozer for withdrawing hollow cylindrical soil sample |
| CN106827172A (en) * | 2017-01-25 | 2017-06-13 | 河海大学 | A kind of artificial coarse-grained soil forming instrument and its forming method |
| CN107727473A (en) * | 2017-11-22 | 2018-02-23 | 天津城建大学 | One kind control reinforcement depth preparation of soil sample device |
| CN109187129A (en) * | 2018-09-13 | 2019-01-11 | 重庆交通大学 | A kind of sample preparation device containing centre cleavage and its application method suitable for mixing gravel clay |
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| CN201359604Y (en) * | 2008-12-04 | 2009-12-09 | 上海大学 | Triaxial test sample preparation mould of saturated reinforced clay |
| CN102914483A (en) * | 2012-10-24 | 2013-02-06 | 中国矿业大学(北京) | Method for high-pressure infiltration experiment of deep undisturbed clay |
| CN103776676A (en) * | 2014-01-23 | 2014-05-07 | 长沙理工大学 | Geotechnical triaxial test specimen split mold and specimen manufacturing method |
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2016
- 2016-05-04 CN CN201610291116.4A patent/CN105806677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201359604Y (en) * | 2008-12-04 | 2009-12-09 | 上海大学 | Triaxial test sample preparation mould of saturated reinforced clay |
| CN102914483A (en) * | 2012-10-24 | 2013-02-06 | 中国矿业大学(北京) | Method for high-pressure infiltration experiment of deep undisturbed clay |
| CN103776676A (en) * | 2014-01-23 | 2014-05-07 | 长沙理工大学 | Geotechnical triaxial test specimen split mold and specimen manufacturing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706449A (en) * | 2016-12-29 | 2017-05-24 | 中国电建集团华东勘测设计研究院有限公司 | Bulldozer for withdrawing hollow cylindrical soil sample |
| CN106827172A (en) * | 2017-01-25 | 2017-06-13 | 河海大学 | A kind of artificial coarse-grained soil forming instrument and its forming method |
| CN107727473A (en) * | 2017-11-22 | 2018-02-23 | 天津城建大学 | One kind control reinforcement depth preparation of soil sample device |
| CN107727473B (en) * | 2017-11-22 | 2024-03-19 | 天津城建大学 | Control adds muscle degree of depth soil sample preparation facilities |
| CN109187129A (en) * | 2018-09-13 | 2019-01-11 | 重庆交通大学 | A kind of sample preparation device containing centre cleavage and its application method suitable for mixing gravel clay |
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| CN105806677B (en) | 2018-08-24 |
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Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi Transportation Technology Research and Development Co.,Ltd. Patentee after: SHANXI JIAOKE GEOTECHNICAL ENGINEERING Co.,Ltd. Address before: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee before: SHANXI TRAFFIC SCIENCES RESEARCH INSTITUTE Co.,Ltd. Patentee before: SHANXI JIAOKE GEOTECHNICAL ENGINEERING Co.,Ltd. |
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Effective date of registration: 20210719 Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: SHANXI TRAFFIC SCIENCES RESEARCH INSTITUTE Co.,Ltd. Patentee after: SHANXI JIAOKE GEOTECHNICAL ENGINEERING Co.,Ltd. Address before: No. 79, Xuefu street, Xiaodian District, Taiyuan, Shanxi Province Patentee before: Shanxi Transportation Research Institute Patentee before: SHANXI JIAOKE GEOTECHNICAL ENGINEERING Co.,Ltd. Effective date of registration: 20210719 Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi Transportation Technology Research and Development Co.,Ltd. Address before: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee before: Shanxi Transportation Technology Research and Development Co.,Ltd. Patentee before: SHANXI JIAOKE GEOTECHNICAL ENGINEERING Co.,Ltd. |
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