CN215953165U - Geotechnique's annular layering sample freezing preparation facilities - Google Patents

Geotechnique's annular layering sample freezing preparation facilities Download PDF

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Publication number
CN215953165U
CN215953165U CN202122491002.3U CN202122491002U CN215953165U CN 215953165 U CN215953165 U CN 215953165U CN 202122491002 U CN202122491002 U CN 202122491002U CN 215953165 U CN215953165 U CN 215953165U
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layered
sample
sheet
mould
layering
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CN202122491002.3U
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Chinese (zh)
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段晓梦
王鹏鹏
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Yango University
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Yango University
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Abstract

The utility model belongs to the field of civil test equipment, and particularly relates to a geotechnical triaxial annular layered sample freezing preparation device which comprises a first half mould, a second half mould, a layered inserting sheet assembly and a top plate, wherein the first half mould and the second half mould are combined to form a sample preparation mould and are connected with each other through a hinge and a lock catch; after the layered inserting sheet assemblies are overlapped at intervals, the layered inserting sheet assemblies are vertically inserted into a sample preparation mold to separate annular layers; the top plate is connected with the sample preparation mould through a bolt. According to the utility model, the first half die and the second half die are arranged and combined to form the sample preparation die, so that the sample preparation die is used for preparing the layered sample piece by freezing after filling the soil sample and is easy to demould; by arranging the layered inserting sheet assembly, the layered inserting sheet assembly is inserted into the sample preparation mold to separate annular layers, so that the layering precision is ensured, and the filling difficulty is reduced; through setting up the roof, seal system appearance mould top, effectively restrain frost heaving distortion.

Description

Geotechnique's annular layering sample freezing preparation facilities
Technical Field
The utility model belongs to the field of civil test equipment, and particularly relates to a geotechnical triaxial annular layered sample freezing preparation device.
Background
The inhomogeneous triaxial sample has special significance for researching problems such as anisotropy, directional seepage and the like, but due to the discreteness of the soil sample, the preparation of the triaxial sample with accurate layering has great difficulty, and particularly for the annular layered triaxial sample, the problems of difficult demoulding and inconvenient compaction exist, and a multi-ring sample with thin and uniform layering cannot be prepared.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the problems in the prior art, the utility model provides the freezing preparation device for the geotechnical triaxial annular layered sample, which is simple and easy to use, high in sample preparation efficiency and easy to demould.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the main technical scheme that:
a geotechnical triaxial annular layered sample freezing preparation device comprises a first half die, a second half die, a layered inserting piece assembly and a top plate, wherein the first half die and the second half die are combined to form a sample preparation die and are connected with each other through a hinge and a lock catch; the layered inserting sheet assemblies are vertically inserted into the sample preparation mould to separate annular layers after being overlapped at intervals; the top plate is connected with the sample preparation mould through a bolt.
In the freezing preparation facilities of foretell geotechnological triaxial cyclic annular layering sample, layering inserted sheet subassembly includes first layering inserted sheet, second layering inserted sheet, third layering inserted sheet, fourth layering inserted sheet, fifth layering inserted sheet and sixth layering inserted sheet.
In the geotechnical triaxial ring-shaped layered sample freezing preparation device, the first half-mould is a cuboid, two semi-cylindrical sample bearing cavities are arranged inside the first half-mould, the bottom of the first half-mould is closed, the top of the first half-mould is open, the upper part and the lower part of the side wall at one end of the first half-mould are respectively provided with a first involutory lock catch, the upper part and the lower part of the side wall at the other end of the first half-mould are respectively provided with two first hinge rings, and the two ends of the top surface are respectively provided with a first threaded hole; the second half mould is a cuboid, two semi-cylindrical sample bearing cavities are arranged in the second half mould, the bottom of the second half mould is closed, the top of the second half mould is open, a second involutory lock catch is respectively arranged above and below the side wall of one end of the second half mould, a second hinge ring is respectively arranged above and below the side wall of the other end of the second half mould, and a second threaded hole is respectively arranged at two ends of the top surface of the second half mould; the inner diameters of two cylindrical sample bearing cavities of the sample preparation mold are equal to the diameter of a triaxial sample to be prepared.
In the geotechnical triaxial annular layered sample freezing preparation device, the first layered insert, the second layered insert, the third layered insert, the fourth layered insert, the fifth layered insert and the sixth layered insert are all annularly cut at equal intervals from a cylinder with the same volume as the cavity of the sample preparation mold, the sixth layered insert is a thin solid cylinder, and the first layered insert, the second layered insert, the third layered insert, the fourth layered insert and the fifth layered insert are thin-wall semi-cylinders in pairs; the top of first layering inserted sheet, second layering inserted sheet, third layering inserted sheet, fourth layering inserted sheet, fifth layering inserted sheet and sixth layering inserted sheet is equipped with first inserted sheet handle, second inserted sheet handle, third inserted sheet handle, fourth inserted sheet handle, fifth layering inserted sheet and sixth inserted sheet handle respectively.
In the freezing preparation facilities of foretell geotechnological triaxial cyclic annular layering sample, the roof is rectangular shaped plate, the roof is equipped with a plurality of inserted sheet handle locating holes along the central line direction, the roof four corners is equipped with four through-holes with the bolt adaptation.
(III) advantageous effects
The utility model has the beneficial effects that: the first half die and the second half die are arranged and combined to form a sample preparation die, and the sample preparation die is used for freezing and preparing a layered sample piece after filling a soil sample and is easy to demould; by arranging the layered inserting sheet assembly, the layered inserting sheet assembly is inserted into the sample preparation mold to separate annular layers, so that the layering precision is ensured, and the filling difficulty is reduced; through setting up the roof, seal system appearance mould top, effectively restrain frost heaving distortion.
Drawings
FIG. 1 is a schematic axial sectional view of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a schematic view of a first mold half according to the present invention;
FIG. 4 is a schematic view of a second mold half of the present invention;
FIG. 5 is a schematic view of a multiple layered insert of the present invention;
FIG. 6 is a schematic view of the top plate structure of the present invention.
[ description of reference ]
1. A first mold half; 101. a first hinge loop; 102. a first involutory lock catch; 103. a first threaded hole; 2. a second mold half; 201. a second hinge loop; 202. a second involutory lock catch; 203. a second threaded hole; 3. a first layered insert sheet; 301. a first tab handle; 4. a second layered insert; 401. a second tab handle; 5. a third layered insert; 501. a third tab handle; 6. a fourth layered tab; 601. a fourth tab handle; 7. a fifth layer insert; 701. a fifth blade handle; 8. a sixth layered insert; 801. a sixth tab handle; 9. a top plate; 901. the plug-in sheet handle positioning hole; 902. a through hole; 10. a hinge axis; 11. and (4) bolts.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
The most key concept of the utility model is as follows: the first half die and the second half die are arranged and combined to form a sample preparation die for freezing and preparing layered sample sheets after filling soil samples, the sample preparation die is inserted into a sample preparation die to separate annular layers by arranging a plurality of layered inserting sheets, and the top of the sample preparation die is sealed by arranging a top plate.
Referring to fig. 1 to 6, a geotechnical triaxial ring-shaped layered sample freezing preparation device comprises a first half mold 1, a second half mold 2, a layered insert assembly and a top plate 9, wherein the first half mold 1 and the second half mold 2 are combined to form a sample preparation mold and are connected with each other through a hinge and a lock catch; after the layered inserting sheet assemblies are overlapped at intervals, the layered inserting sheet assemblies are vertically inserted into a sample preparation mold to separate annular layers; the top plate 9 is connected with the sample preparation mould through bolts 11.
Specifically, among the freezing preparation facilities of foretell geotechnological triaxial cyclic annular layering sample, layering inserted sheet subassembly includes first layering inserted sheet 3, second layering inserted sheet 4, third layering inserted sheet 5, fourth layering inserted sheet 6, fifth layering inserted sheet 7 and sixth layering inserted sheet 8.
Specifically, in the geotechnical triaxial annular layered sample freezing preparation device, the first half mould 1 is a cuboid, two semi-cylindrical sample bearing cavities are arranged inside the first half mould, the bottom part is closed, the top part is open, the upper part and the lower part of the side wall at one end are respectively provided with a first involutory lock catch 102, the upper part and the lower part of the side wall at the other end are respectively provided with two first hinge rings 101, and two ends of the top surface are respectively provided with a first threaded hole 103; the second half-mold 2 is a cuboid, two semi-cylindrical sample bearing cavities are arranged in the second half-mold, the bottom of the second half-mold is closed, the top of the second half-mold is open, a second involutory lock catch 202 is respectively arranged above and below the side wall of one end of the second half-mold, a second hinge ring 201 is respectively arranged above and below the side wall of the other end of the second half-mold, and a second threaded hole 203 is respectively arranged at two ends of the top surface of the second half-mold; the inner diameters of two cylindrical sample bearing cavities of the sample preparation die are equal to the diameter of a triaxial sample to be prepared.
Specifically, in the geotechnical triaxial annular layered sample freezing preparation device, the first layered insert 3, the second layered insert 4, the third layered insert 5, the fourth layered insert 6, the fifth layered insert 7 and the sixth layered insert 8 are all formed by annularly sectioning the cylinder with the same size as the cavity of the sample preparation mold at equal intervals, the sixth layered insert 8 is a thin solid cylinder, and the first layered insert 3, the second layered insert 4, the third layered insert 5, the fourth layered insert 6 and the fifth layered insert 7 are thin-walled half cylinders in pairs; the top ends of the first layered inserting sheet 3, the second layered inserting sheet 4, the third layered inserting sheet 5, the fourth layered inserting sheet 6, the fifth layered inserting sheet 7 and the sixth layered inserting sheet 8 are respectively provided with a first inserting sheet handle 301, a second inserting sheet handle 401, a third inserting sheet handle 501, a fourth inserting sheet handle 601, a fifth inserting sheet handle 701 and a sixth inserting sheet handle 801.
Specifically, in the geotechnical triaxial annular layered sample freezing preparation device, the top plate 9 is a rectangular plate, the top plate 9 is provided with a plurality of insert handle positioning holes 901 along the central line direction, and four through holes 902 matched with the bolts 11 are formed in four corners of the top plate 9.
The freezing preparation device of the geotechnical triaxial annular layered sample comprises the following specific implementation steps: a piece of first half mould 1 and a piece of second half mould 2 are combined to form a sample preparation mould, two hinge shafts 10 are used for connecting a first hinge ring 101 and a second hinge ring 201, and a first combination lock catch 102 and a second combination lock catch 202 are connected through screws.
Taking a first layered inserting sheet 3, a second layered inserting sheet 4, a third layered inserting sheet 5, a fourth layered inserting sheet 6 and a fifth layered inserting sheet 7 to form five groups of annular inserting sheets, taking a sixth layered inserting sheet 8, dividing the sixth layered inserting sheet into two groups according to requirements, vertically inserting the six layered inserting sheets into a sample preparation mould to separate sample bearing interlayers, and filling soil samples into each layer space according to requirements.
The top plate 9 is placed at the top end of the sample preparation mold, so that the first insert handle 301, the second insert handle 401, the third insert handle 501, the fourth insert handle 601, the fifth insert handle 701 and the sixth insert handle 801 correctly penetrate through the corresponding insert handle positioning holes 901, and four bolts 11 are screwed into the first threaded hole 103 and the second threaded hole 203 through the through holes 902 and fastened.
And finally, putting the preparation device into a freezer for freezing after the preparation device is saturated with water, demolding after freezing, taking out each layer of sample frozen ring, and sequentially nesting to obtain the required triaxial annular layered sample, thus completing preparation.
From the above description, the beneficial effects of the present invention are: by arranging the first half die 1 and the second half die 2, a sample preparation die is formed by matching, is used for preparing a layered sample piece by freezing after filling a soil sample, and is easy to demould; by arranging the layered inserting sheet assembly, the layered inserting sheet assembly is inserted into the sample preparation mold to separate annular layers, so that the layering precision is ensured, and the filling difficulty is reduced; through setting up roof 9, seal system appearance mould top, effectively restrain frost heaving distortion.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (5)

1. The utility model provides a freezing preparation facilities of geotechnique's triaxial cyclic annular layering sample which characterized in that: the device comprises a first half die, a second half die, a layered inserting sheet assembly and a top plate, wherein the first half die and the second half die are combined to form a sample preparation die and are connected with each other through a hinge and a lock catch; the layered inserting sheet assemblies are vertically inserted into the sample preparation mould to separate annular layers after being overlapped at intervals; the top plate is connected with the sample preparation mould through a bolt.
2. The geotechnical triaxial ring-shaped stratified sample freezing preparation device according to claim 1, wherein: the layered inserting piece component comprises a first layered inserting piece, a second layered inserting piece, a third layered inserting piece, a fourth layered inserting piece, a fifth layered inserting piece and a sixth layered inserting piece.
3. The geotechnical triaxial ring-shaped stratified sample freezing preparation device according to claim 1, wherein: the first half module is a cuboid, two semi-cylindrical sample bearing cavities are arranged in the first half module, the bottom of the first half module is closed, the top of the first half module is open, the upper part and the lower part of the side wall of one end of the first half module are respectively provided with a first involutory lock catch, the upper part and the lower part of the side wall of the other end of the first half module are respectively provided with two first hinge rings, and the two ends of the top surface are respectively provided with a first threaded hole;
the second half mould is a cuboid, two semi-cylindrical sample bearing cavities are arranged in the second half mould, the bottom of the second half mould is closed, the top of the second half mould is open, a second involutory lock catch is respectively arranged above and below the side wall of one end of the second half mould, a second hinge ring is respectively arranged above and below the side wall of the other end of the second half mould, and a second threaded hole is respectively arranged at two ends of the top surface of the second half mould;
the inner diameters of two cylindrical sample bearing cavities of the sample preparation mold are equal to the diameter of a triaxial sample to be prepared.
4. The geotechnical triaxial ring-shaped layered sample freezing preparation device according to claim 2, wherein: the first layered inserting sheet, the second layered inserting sheet, the third layered inserting sheet, the fourth layered inserting sheet, the fifth layered inserting sheet and the sixth layered inserting sheet are all formed by annularly sectioning a cylinder with the same size as the cavity of the sample preparation mold in an equidistant mode, the sixth layered inserting sheet is a thin solid cylinder, and the first layered inserting sheet, the second layered inserting sheet, the third layered inserting sheet, the fourth layered inserting sheet and the fifth layered inserting sheet are pairwise thin-wall semi-cylinders;
the top of first layering inserted sheet, second layering inserted sheet, third layering inserted sheet, fourth layering inserted sheet, fifth layering inserted sheet and sixth layering inserted sheet is equipped with first inserted sheet handle, second inserted sheet handle, third inserted sheet handle, fourth inserted sheet handle, fifth layering inserted sheet and sixth inserted sheet handle respectively.
5. The geotechnical triaxial ring-shaped stratified sample freezing preparation device according to claim 1, wherein: the roof is rectangular shaped plate, the roof is equipped with a plurality of inserted sheet handle locating holes along the central line direction, the roof four corners is equipped with four through-holes with the bolt adaptation.
CN202122491002.3U 2021-10-16 2021-10-16 Geotechnique's annular layering sample freezing preparation facilities Expired - Fee Related CN215953165U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122491002.3U CN215953165U (en) 2021-10-16 2021-10-16 Geotechnique's annular layering sample freezing preparation facilities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122491002.3U CN215953165U (en) 2021-10-16 2021-10-16 Geotechnique's annular layering sample freezing preparation facilities

Publications (1)

Publication Number Publication Date
CN215953165U true CN215953165U (en) 2022-03-04

Family

ID=80412782

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122491002.3U Expired - Fee Related CN215953165U (en) 2021-10-16 2021-10-16 Geotechnique's annular layering sample freezing preparation facilities

Country Status (1)

Country Link
CN (1) CN215953165U (en)

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Granted publication date: 20220304