CN105806677B - Three axis preparation of soil sample device of reinforcement and preparation method - Google Patents
Three axis preparation of soil sample device of reinforcement and preparation method Download PDFInfo
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- CN105806677B CN105806677B CN201610291116.4A CN201610291116A CN105806677B CN 105806677 B CN105806677 B CN 105806677B CN 201610291116 A CN201610291116 A CN 201610291116A CN 105806677 B CN105806677 B CN 105806677B
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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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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of three axis preparation of soil sample device of reinforcement and preparation methods, three axis preparation of soil sample device of reinforcement includes pedestal, plastic film and at least two arc plates, all arc plate bottoms are mounted on pedestal, all arc plates surround the soil sample tube of cylindrical shape jointly, the adjacent side edge of two neighboring arc plate not in contact with and constitute fine crack, plastic film is equipped in soil sample tube, the end of plastic film is fixed in fine crack；All arc plates are towards being all covered with preservative film on the inner surface wall in soil sample tube cylinder.Three axis preparation of soil sample method of reinforcement is as follows：A, three axis preparation of soil sample device of reinforcement, the coating lubricating oil on the preservative film side of all arc plates are installed；B, earth material is poured into respectively in the soil sample tube being made of all arc plates, Stiffened Cylindrical shape soil sample is formed using compaction apparatus compaction in layers earth material.The present invention can prepare the three axis soil sample of reinforcement of different location and different number, and the diversification for meeting experiment requires.
Description
Technical field
The present invention relates to geotechnological laboratory test technical field more particularly to a kind of three axis preparation of soil sample device of reinforcement and preparations
Method.
Background technology
Reinforced earth concept is to put forward early 1960s, by the material for mixing fiber in Study on Triaxial Tests soil
Material finds that soil strength improves, and is named as reinforced earth from this by this composite material, research reinforced earth Reinforced Mechanism is widest
Research means are triaxial compression test, and how to prepare three axis soil sample of reinforcement is the important of accurate progress reinforced earth Study on Triaxial Tests
One step has great importance to research reinforced earth strain-stress relation, deformation failure characteristic and intensity reinforcement effects.
The research of reinforced earth is usually that exploration and analysis, the reinforced earth proposed at present are carried out under the conditions of ordinary triaxial test
For theory also based on ordinary triaxial test, the preparation of three axis soil sample of reinforcement is the important ring of experimental study, still, existing reinforcement
Three axis preparation of soil sample devices lack, and method is incomplete, inefficiency, has constrained the research of reinforced earth Reinforced Mechanism so that
Theoretical research lags significantly behind engineering practice.Therefore, fall behind to solve three axis preparation of soil sample device and method of existing reinforcement
Problem provides a kind of three axis preparation of soil sample device of reinforcement and test method, imperative.
Invention content
Place in view of the shortcomings of the prior art, the purpose of the present invention is to provide a kind of three axis preparation of soil sample of reinforcement dresses
It sets and preparation method meets experiment for the three axis soil sample of reinforcement for preparing different location and different number rapidly and efficiently
Diversification require, improve scientific research level, have many advantages, such as it is reasonable in design, rapidly and efficiently, easy to operate and energy conservation and environmental protection.
The purpose of the invention is achieved by the following technical solution：
A kind of three axis preparation of soil sample device of reinforcement, including pedestal, plastic film and at least two arc plates, all circular arcs
Board bottom portion is mounted on pedestal, and all arc plates surround the soil sample tube of cylindrical shape, the phase of two neighboring arc plate jointly
Adjacent side margins not in contact with and constitute fine crack, plastic film is equipped in the soil sample tube, the end of the plastic film is fixed on
In fine crack；All arc plates are towards being all covered with preservative film on the inner surface wall in soil sample tube cylinder.
In order to which the present invention is better achieved, the quantity of the arc plate is six, and the bottom of six arc plates is mounted on
On pedestal, six arc plates surround the soil sample tube of cylindrical shape jointly, and the adjacent side edge of two neighboring arc plate does not connect
Fine crack is touched and constitutes, six arc plates constitute six fine cracks, set that there are three plastic film, each plastic films in the soil sample tube
Both ends end respectively correspondence be fixed in two in soil sample tube fine cracks；Six arc plates are towards the inner surface wall in soil sample tube cylinder
On be all covered with preservative film.
It more easily realizes for the ease of round card slot and is detachably connected with pedestal, round card slot is provided on the pedestal,
All arc plate bottoms are connected in round card slot.
In order to enable soil sample tube middle and upper part has tube inner chamber diameter same as soil sample tube lower part, all arc plate institutes
It is closely set with several annular sleeves outside the soil sample tube of composition.
Three axis preparation of soil sample device of this reinforcement further includes compaction apparatus, and the compaction apparatus includes thin bar and is fixedly connected on
The squeeze board of thin bar bottom, the squeeze board bottom are equipped with film square, and the length value of the thin bar is more than the height of soil sample tube
Angle value.
Preferably, the annular sleeve quantity is one, which is set to the medium position outside soil sample tube.
Preferably, the bottom cylindrical face for the soil sample tube that the diameter of the round card slot of the pedestal is constituted with all arc plates
Circular diameter is identical, and it is 0.5cm that the circular card geosynclinal concave, which sinks into the depth in pedestal,.
Preferably, the fine crack width that the adjacent side edge of two neighboring arc plate is constituted is 0.1cm.
A kind of three axis preparation of soil sample method of reinforcement, including three axis preparation of soil sample device of reinforcement, method are as follows：
A, three axis preparation of soil sample device of reinforcement, the coating lubricating oil on the preservative film side of all arc plates are installed；
B, earth material is poured into respectively in the soil sample tube being made of all arc plates, utilizes compaction apparatus compaction in layers soil
Material until the internal Stiffened Cylindrical shape soil sample with plastic film is molded, then slowly disassembles arc plate one by one, takes out reinforcement circle
Cylindrical soil sample trims extra material, to complete the preparation of three axis soil sample of reinforcement.
The present invention compared with the prior art, has the following advantages and advantageous effect：
(1) present invention not only can add plastic film in three axis soil sample of reinforcement, can also add the materials such as geotextiles,
The purpose for realizing the three axis preparation of soil sample of multiple material reinforcement, the diversification for meeting experiment require；The present invention passes through preservative film, side
The use of shape film and lubricating oil prevents disturbance when sampling to cylindrical soil sample from destroying, improves the precision of the preparation of soil sample, subtract
Artificial test error is lacked.
(2) three axis preparation of soil sample apparatus structure of this reinforcement is simple, and easy to carry, processing cost is low, is easy to producing and teaching
It is promoted and applied in；Sample preparation device and method rapidly and efficiently, improve the efficiency of experiment；The sample preparation device and method are for reinforcement
Native triaxial test has important practice significance and significance of scientific research.
Description of the drawings
Fig. 1 is the front view of three axis preparation of soil sample device of reinforcement；
Fig. 2 is the vertical view of three axis preparation of soil sample device of reinforcement；
Fig. 3 is the close-up schematic view of Fig. 2.
Wherein, entitled corresponding to the reference numeral in attached drawing：
1- arc plates, 2- plastic films, 3- thin bars, 4- annular sleeves, 5- squeeze boards, 6- film squares, the bottoms 7-
Seat, 8- circle card slots, 9- preservative films, 10- fine cracks.
Specific implementation mode
The present invention is described in further detail with reference to embodiment：
Embodiment
As shown in FIG. 1 to 3, a kind of three axis preparation of soil sample device of reinforcement, including pedestal 7, plastic film 2 and at least two
Arc plate 1, all 1 bottoms of arc plate are mounted on pedestal 7, and all arc plates 1 surround the soil sample of cylindrical shape jointly
Cylinder, the adjacent side edge of two neighboring arc plate 1 not in contact with and constitute fine crack 10, be equipped with 2 (this hair of plastic film in soil sample tube
Bright plastic film 2 could alternatively be geotextiles or other reinforcement materials, and three axis preparation of soil sample device of reinforcement not only can be
Plastic film is added in soil sample can also add the materials such as geotextiles, realize the purpose of the three axis preparation of soil sample of multiple material reinforcement,
And simple in structure, easy to carry, processing cost is low, is easy to promote and apply in production and teaching.), the end of plastic film 2
It is fixed in fine crack 10；The plastic film 2 of the present invention is fixed on by glue in fine crack 10, and ensures plastic film 2 when fixing
There is certain tension.For all arc plates 1 towards preservative film 9 is all covered on the inner surface wall in soil sample tube cylinder, all preservative films 9 are big
Small identical as each arc plate 1, each preservative film 9 is attached to the inner wall of corresponding arc plate 1, and when sample preparation, 9 outside of preservative film applies
Lubricating oil is smeared, prevents from destroying cylindrical soil sample when sampling.
As shown in Figure 1 and Figure 2, the quantity of the preferred arc plate of the present embodiment 1 is six, and the bottom of six arc plates 1 is respectively mounted
In on pedestal 7, being provided with round card slot 8 on the pedestal 7 of the present embodiment, six 1 bottoms of arc plate are connected in round card slot 8；
7 upper surface of pedestal is provided with round card slot 8, and round card slot 8 is for fixing all arc plates 1.Six arc plates 1 surround jointly
The soil sample tube of cylindrical shape, the adjacent side edge of two neighboring arc plate 1 not in contact with and constitute fine crack 10, as shown in Fig. 2,
Six arc plates 1 constitute six fine cracks 10, set that there are three plastic film 2, the both ends end parts of each plastic film 2 in soil sample tube
It Dui Ying not be fixed in two in soil sample tube fine cracks 10.
The bottom cylindrical face for the soil sample tube that the diameter of the round card slot 8 of the present embodiment pedestal 7 is constituted with all arc plates 1 is justified
Diameter is identical, i.e. the diameter of circle card slot 8 is identical as the bottom cylindrical face circle that 6 arc plates 1 surround, and round card slot 8 is depressed in bottom
Depth in seat 7 is 0.5cm, can preferably fix all arc plates 1.The two neighboring arc plate of the present embodiment 1 it is adjacent
10 width of fine crack that side margins are constituted is 0.1cm, and fine crack 10 passes through for materials such as fixed plastics film 2 or geotextiles
The three axis preparations of soil sample of different location and different number reinforcement may be implemented in the configuration of six fine cracks 10.
As shown in Fig. 2, the correspondence between the preferred arc plate 1 of the present embodiment and fine crack 10 is as follows：
Each arc plate 1 is 1/6th of a full circle, i.e., arc plate 1 is 1/6th circular arcs；The present embodiment is by six
10 number consecutively of a fine crack is A, B, C, D, E, F, length and the circular diameter in soil sample tube cross section of one of plastic film 2
Equal, which is fixed in the fine crack 10 that number is C, which is fixed on number and is
In the fine crack 10 of F；The equal length of other two plastic film 2, it is B that number is fixed in 2 one end end of plastic film therein
Fine crack 10 in, 2 other end end of plastic film be fixed on number be A fine crack 10 in, another 2 one end end of plastic film
Portion is fixed in the fine crack 10 that number is D, which is fixed in the fine crack 10 that number is E.Six circles
Arc plate 1 is towards being all covered with preservative film 9 on the inner surface wall in soil sample tube cylinder.According to mode as shown in Figure 2, two length are set
Equal plastic film 2 and length plastic film 2 three plastic films 2 equal with soil sample tube cross section round diameter
Afterwards, three 2 uniform parallel of plastic film arrangements, reinforced structure of three plastic films 2 as Stiffened Cylindrical shape soil sample can obtain
To a kind of Stiffened Cylindrical shape soil sample, certain present invention can also arrange the plastic film 2 of different number and different location, can obtain
To a variety of Stiffened Cylindrical shape soil samples, Stiffened Cylindrical shape soil sample test type is enriched, the diversification for meeting experiment requires.
Several annular sleeves 4 are closely set with outside the soil sample tube that all arc plates 1 are constituted, as shown in Figure 1, this implementation
4 quantity of annular sleeve of example is one, which is set to the medium position outside soil sample tube；The annular sleeve of the present embodiment 4
In the centre position of 1 outer surface of all arc plates, for fixing six identical arc plates 1.
Three axis preparation of soil sample device of this reinforcement further includes compaction apparatus, and into soil sample tube plus after earth material, compaction apparatus can
For use as the purpose of compaction in layers earth material, compaction apparatus includes thin bar 3 and is fixedly connected on the squeeze board 5 of 3 bottom of thin bar, compacting
5 bottom of plate is equipped with film square 6, and film square 6 is pasted on the bottom of squeeze board 5, prevents the bottom of squeeze board 5 from affixing soil
Grain；The length value of thin bar 3 is more than the height value of soil sample tube, and the 3 length long enough of thin bar of the present embodiment guarantees preferably to be compacted
Soil sample.
The present invention is used to prepare the operating method of three axis soil sample of reinforcement, and steps are as follows：
A, it according to three axis preparation of soil sample device of reinforcement is installed shown in Fig. 1, is required first according to testing program before experiment true
The type of the fixed added materials such as plastic film 2 or geotextiles and added position and quantity；
B, it by six 1 grafting of arc plate or is connected in the round card slot 8 of pedestal 7, and on six 1 inner walls of arc plate point
Not Nian Tie preservative film 9, then in 9 outside coating lubricating oil of preservative film, the purpose of coating lubricating oil is to facilitate taking-up Stiffened Cylindrical
Plastic film 2 (or the materials such as geotextiles) is then fixed in fine crack 10 using glue by shape soil sample, ensures that plastics are thin when fixed
Film 2 (or the materials such as geotextiles) has certain tension；
C, a certain amount of earth material is weighed up to be poured into respectively by six arc plates 1 and plastic film 2 (or the materials such as geotextiles) group
At each interior room of soil sample tube in, using the 5 compaction in layers soil sample of squeeze board of compaction apparatus, until Stiffened Cylindrical shape soil sample is molded,
It slowly lays down arc plate 1 one by one again, takes out cylindrical soil sample, extra material is trimmed, to complete three axis soil sample of reinforcement
It prepares；
D, after the completion of experiment, the attachment on pedestal 7 and arc plate 1 is cleaned with hairbrush, to carry out next experiment.
A kind of three axis preparation of soil sample method of reinforcement, including three axis preparation of soil sample device of reinforcement, method are as follows：
A, three axis preparation of soil sample device of reinforcement, the coating lubricating oil on 9 side of preservative film of all arc plates 1 are installed；
B, earth material is poured into respectively in the soil sample tube being made of all arc plates 1, utilizes compaction apparatus compaction in layers soil
Material until the internal Stiffened Cylindrical shape soil sample with plastic film 2 is molded, then slowly disassembles arc plate 1, takes out reinforcement one by one
Cylindrical soil sample trims extra material, to complete the preparation of three axis soil sample of reinforcement.
The above embodiment is a preferred embodiment of the present invention, is not the implementation for limiting the present invention and power
Sharp range, the equivalence changes and approximate replacement that the content described in all ranges of patent protection according to the present invention is made should all
It is within the scope of the present invention.
Claims (8)
1. a kind of three axis preparation of soil sample device of reinforcement, it is characterised in that：Including pedestal（7）, plastic film（2）With at least two circles
Arc plate（1）, all arc plate（1）Bottom is mounted on pedestal（7）On, all arc plates（1）Cylindrical shape is surrounded jointly
Soil sample tube, two neighboring arc plate（1）Adjacent side edge not in contact with and constitute fine crack（10）, it is equipped in the soil sample tube
Plastic film（2）, the plastic film（2）End be fixed on fine crack（10）In；All arc plates（1）Towards in soil sample tube cylinder
Inner surface wall on be all covered with preservative film（9）；
The arc plate（1）Quantity be six, six arc plates（1）Bottom be mounted on pedestal（7）On, six arc plates
（1）The soil sample tube of cylindrical shape, two neighboring arc plate are surrounded jointly（1）Adjacent side edge not in contact with and constitute fine crack
（10）, six arc plates（1）Constitute six fine cracks（10）, set that there are three plastic films in the soil sample tube（2）, each plastics are thin
Film（2）Both ends end corresponding two fine cracks being fixed in soil sample tube respectively（10）In；Six arc plates（1）Towards soil sample tube
It is all covered with preservative film on inner surface wall in cylinder（9）；
Each arc plate（1）It is 1/6th of a full circle, i.e., arc plate 1 is 1/6th circular arcs, by six fine cracks（10）
Number consecutively is A, B, C, D, E, F, one of plastic film（2）Length it is equal with the circular diameter in soil sample tube cross section,
The plastic film（2）The fine crack that number is C is fixed at one end end（10）In, the plastic film（2）Number is fixed at other end end
For the fine crack of F（10）In；Other two plastic film（2）Equal length, plastic film therein（2）One end end is fixed on
In the fine crack 10 that number is B, the plastic film（2）The fine crack that number is A is fixed in other end end（10）In, another plastics
Film（2）The fine crack that number is D is fixed in one end end（10）In, the plastic film（2）It is E that number is fixed in other end end
Fine crack（10）In.
2. three axis preparation of soil sample device of reinforcement described in accordance with the claim 1, it is characterised in that：The pedestal（7）On be provided with circle
Shape card slot（8）, all arc plate（1）Bottom is connected in round card slot（8）In.
3. three axis preparation of soil sample device of reinforcement described in accordance with the claim 1, it is characterised in that：All arc plates（1）It is constituted
Soil sample tube outside be closely set with several annular sleeves（4）.
4. three axis preparation of soil sample device of reinforcement described in accordance with the claim 1, it is characterised in that：Further include compaction apparatus, it is described
Compaction apparatus includes thin bar（3）Be fixedly connected on thin bar（3）The squeeze board of bottom（5）, the squeeze board（5）Bottom is equipped with
Film square（6）, the thin bar（3）Length value be more than soil sample tube height value.
5. three axis preparation of soil sample device of reinforcement described in accordance with the claim 3, it is characterised in that：The annular sleeve（4）Quantity is
One, the annular sleeve（4）The medium position being set to outside soil sample tube.
6. three axis preparation of soil sample device of reinforcement according to claim 2, it is characterised in that：The pedestal（7）Circular card
Slot（8）Diameter and all arc plates（1）The bottom cylindrical face circular diameter of the soil sample tube constituted is identical, the circle card slot（8）
It is depressed in pedestal（7）In depth be 0.5cm.
7. three axis preparation of soil sample device of reinforcement described in accordance with the claim 1, it is characterised in that：Two neighboring arc plate（1）'s
The fine crack that adjacent side edge is constituted（10）Width is 0.1cm.
8. a kind of side preparing three axis soil sample of reinforcement using any three axis preparation of soil sample devices of the reinforcement of claim 1-7
Method, it is characterised in that：The method is as follows：
A, three axis preparation of soil sample device of reinforcement is installed, in all arc plates（1）Preservative film（9）Coating lubricating oil on side；
B, earth material is poured into respectively by all arc plates（1）In the soil sample tube constituted, using compaction apparatus compaction in layers earth material,
Until internal carry plastic film（2）The molding of Stiffened Cylindrical shape soil sample, then slowly disassemble arc plate one by one（1）, take out and add
Muscle cylinder soil sample, trims extra material, to complete the preparation of three axis soil sample of reinforcement.
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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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| CN105806677B true CN105806677B (en) | 2018-08-24 |
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| 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 |
| CN107727473B (en) * | 2017-11-22 | 2024-03-19 | 天津城建大学 | Control adds muscle degree of depth soil sample preparation facilities |
| CN109187129B (en) * | 2018-09-13 | 2020-11-17 | 重庆交通大学 | Preparation device and method of sample containing center cracks and suitable for gravel-doped 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 |
| CN103776676B (en) * | 2014-01-23 | 2016-04-27 | 长沙理工大学 | Geotechnical triaxial test specimen split mold and specimen manufacturing method |
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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. |