CN215985438U - Geotechnical circular table-shaped seepage tensile sample compaction preparation device - Google Patents
Geotechnical circular table-shaped seepage tensile sample compaction preparation device Download PDFInfo
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- CN215985438U CN215985438U CN202122554509.9U CN202122554509U CN215985438U CN 215985438 U CN215985438 U CN 215985438U CN 202122554509 U CN202122554509 U CN 202122554509U CN 215985438 U CN215985438 U CN 215985438U
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Abstract
The utility model belongs to the field of geotechnical test equipment, and particularly relates to a compaction preparation device for a geotechnical round table-shaped seepage tensile sample, which comprises two symmetrically arranged half mould cylinders, a bottom plate, a capacity expansion ring, a top cover, three inner mould sheets, six inner mould connecting rods and a core rod, wherein the two half mould cylinders are combined to form a sample bearing mould cylinder, and the bottom plate is positioned at the bottom of the sample bearing mould cylinder; the expansion ring is positioned at the top of the sample-bearing cylinder, and the top cover is slidably inserted into the inner side of the expansion ring. According to the utility model, two symmetrical half mould cylinders are arranged and combined to form a sample bearing mould cylinder, so that a symmetrical double-truncated-cone-shaped sample bearing cavity is formed and the demoulding convenience is ensured; the core die column is formed by arranging three internal die sheets, six internal die connecting rods and a core rod, so that the smooth preparation of the sample seepage core is ensured; through setting up dilatation ring and top cap, constitute and load and hit a kind mechanism, guarantee the agility of preparation, overall structure is simple, the operation of being convenient for, and work efficiency is high, and the practicality is strong, suitable using widely.
Description
Technical Field
The utility model belongs to the field of geotechnical test equipment, and particularly relates to a compaction preparation device for a geotechnical circular truncated cone-shaped seepage tensile sample.
Background
Although the symmetric double-trapezoid flat plate sample commonly used for the geotechnical direct tensile test is easy to prepare, the thickness is too thin and does not have cylindrical symmetry, the stress state of the boundary in the loading process is complex, stress concentration is easy to generate and the like, so that the symmetric double-trapezoid flat plate sample is inconvenient to demould after the test is finished.
On the other hand, the seepage-tensile coupling test can research the influence of seepage on the direct tensile strength of the soil body so as to analyze the mechanical property of the soil body in a seepage-tensile coupling state, and the traditional tensile sample device is inconvenient to use, low in working efficiency and low in practicability.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the problems in the prior art, the utility model provides a compaction preparation device for a geocentric cone-shaped seepage tensile sample, which has a simple structure, is quick to prepare the sample and is easy to demould.
(II) technical scheme
In order to achieve the purpose, the utility model adopts the main technical scheme that:
a compaction preparation device for a geotechnical round-table-shaped seepage tensile sample comprises two symmetrically-arranged half mould cylinders, a bottom plate, a capacity expansion ring, a top cover, three inner mould sheets, six inner mould connecting rods and a core rod, wherein the two half mould cylinders are combined to form a sample bearing mould cylinder, and the bottom plate is positioned at the bottom of the sample bearing mould cylinder; the expansion ring is positioned at the top of the sample-bearing cylinder, and the top cover is slidably inserted into the inner side of the expansion ring; and three inner mold sheets are connected to the core rod through six inner mold connecting rods to form a core mold column inserted into the sample bearing mold cylinder.
In the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample, the sample bearing mold cylinder is cylindrical, and a symmetrical double-circular truncated cone-shaped sample bearing cavity is formed inside the sample bearing mold cylinder; four locking heads are arranged on two edges of the half cylinder, the four locking heads are arranged on two sides of an opening of the half cylinder in pairs, and a cylinder positioning hole is formed in the center of a semi-circular ring surface at the top of the half cylinder.
In the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample, the bottom plate is in a circular plate shape, and a bottom plate positioning hole is formed in the center of the top surface; the outer diameter of the bottom plate is matched with the inner diameter of the bottom end of the sample bearing mold cylinder.
In the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample, the capacity expansion ring is a hollow thin-wall cylinder, and two ring bottom positioning pins matched with the die cylinder positioning holes are symmetrically arranged on the bottom surface of the capacity expansion ring.
In the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample, the top cover is in a circular plate shape, the bottom surface of the top cover is provided with the sample pressing pile, and the center of the top cover is provided with the octagonal top cover through hole; the outer diameter of the sample pressing pile is matched with the inner diameter of the expansion ring.
In the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample, the inner matrix is a thin-wall circular arc plate, and the arc center angle is 120 degrees; the inner wall of the inner matrix is provided with four inner mold hinge heads, and one group of every two inner mold hinge heads are arranged at the upper end and the lower end of a side line; the core rod is a solid round rod, and the top end of the core rod is provided with an octagonal prism-shaped handle; the middle and lower parts of the core rod are respectively provided with six core rod hinge heads, and every two core rod hinge heads are arranged in a group in an annular array around the axis of the core rod at an included angle of 120 degrees; the outer diameter of the core rod is matched with the inner diameter of the bottom plate positioning hole; the size of the cross section of the handle is matched with that of the through hole of the top cover, and the die column is formed by arranging three inner die sheets, six inner die connecting rods and a core rod.
(III) advantageous effects
The utility model has the beneficial effects that: two symmetrical half mould cylinders are arranged and combined to form a sample bearing mould cylinder, so that a symmetrical double-truncated-cone-shaped sample bearing cavity is formed and the demoulding convenience is ensured; the core die column is formed by arranging three internal die sheets, six internal die connecting rods and a core rod, so that the smooth preparation of the sample seepage core is ensured; through setting up dilatation ring and top cap, constitute and load and hit a kind mechanism, guarantee the agility of preparation, overall structure is simple, the operation of being convenient for, and work efficiency is high, and the practicality is strong, suitable using widely.
Drawings
FIG. 1 is a schematic axial sectional view of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic view of the external structure of the present invention;
FIG. 4 is a schematic view of the bottom plate structure of the present invention;
FIG. 5 is a schematic view of a half cylinder structure according to the present invention;
FIG. 6 is a schematic view of a flash ring configuration of the present invention;
FIG. 7 is a schematic view of the top cover structure of the present invention;
FIG. 8 is a schematic view of an inner die structure of the present invention;
FIG. 9 is a schematic structural view of a core rod of the present invention.
[ description of reference ]
1. A base plate; 101. a bottom plate positioning hole; 2. a half mold cylinder; 201. a lock head; 202. a die cylinder positioning hole; 3. a tolerance ring; 301. a ring bottom positioning pin; 4. a top cover; 401. pressing a sample pile; 402. a top cover through hole; 5. an inner mold piece; 501. an inner mold hinge head; 6. an inner mold connecting rod; 7. a core bar; 701. a core rod hinge head; 702. a handle; 8. and (4) bolts.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The most key concept of the utility model is as follows: two symmetrical half mould cylinders are arranged and combined to form a sample bearing mould cylinder, three inner mould sheets, six inner mould connecting rods and a core rod are arranged to form a core mould column, and a filling sample hitting mechanism is formed by arranging a capacity expansion ring and a top cover.
Referring to fig. 1 to 9, a compaction preparation device for a geotechnical round-table-shaped seepage tensile sample comprises two symmetrically arranged half mold cylinders 2, a bottom plate 1, an expansion ring 3, a top cover 4, three inner mold sheets 5, six inner mold connecting rods 6 and a core rod 7, wherein the two half mold cylinders 2 are combined to form a sample bearing mold cylinder, so that a symmetrical double round-table-shaped sample bearing cavity can be formed to ensure the demolding convenience, and the bottom plate 1 is positioned at the bottom of the sample bearing mold cylinder; the capacity expanding ring 3 is positioned at the top of the sample bearing cylinder, and the top cover 4 is slidably inserted into the inner side of the capacity expanding ring 3; the three inner mold sheets 5 are connected to a core rod 7 through six inner mold connecting rods 6 to form a core mold column inserted into the sample bearing mold cylinder.
Specifically, in the device for compacting and preparing the geotechnical circular truncated cone-shaped seepage tensile sample, the sample bearing mold cylinder is cylindrical, and a symmetrical double-circular truncated cone-shaped sample bearing cavity is formed inside the sample bearing mold cylinder; four locking heads 201 are arranged at two edges of the half cylinder 2, the four locking heads 201 are arranged on two sides of the opening of the half cylinder 2 in pairs, and a cylinder positioning hole 202 is arranged at the center of the semicircular surface at the top of the half cylinder 2.
Specifically, in the above mentioned geotechnical circular truncated cone shaped seepage tensile sample compaction preparation device, as shown in fig. 4, the bottom plate 1 is in a circular plate shape, and the center of the top surface is provided with a bottom plate positioning hole 101; the outer diameter of the bottom plate 1 is matched with the inner diameter of the bottom end of the sample-bearing mold cylinder.
Specifically, in the above-mentioned geotechnical circular truncated cone-shaped seepage tensile sample compaction preparation device, the expansion ring 3 is a hollow thin-walled cylinder, and two ring bottom positioning pins 301 matched with the mold cylinder positioning holes 202 are symmetrically arranged on the bottom surface.
Specifically, in the above device for compacting and preparing the geotechnical circular truncated cone-shaped seepage tensile sample, the top cover 4 is in a circular plate shape, the bottom surface of the top cover is provided with a sample pressing pile 401, and the center of the top cover 4 is provided with an octagonal top cover through hole 402; the external diameter of the sample pressing pile 401 is matched with the internal diameter of the expansion ring 3, and the sample loading and hitting mechanism is formed by arranging the expansion ring 3 and the top cover 4, so that the preparation rapidity is ensured.
Specifically, in the above-mentioned geotechnical circular truncated cone-shaped seepage tensile sample compaction preparation device, the inner die 5 is a thin-wall circular arc plate, and the arc center angle is 120 °; the inner wall of the inner matrix 5 is provided with four inner mold hinge heads 501, and one group of every two inner mold hinge heads is arranged at the upper end and the lower end of a side line; the core rod 7 is a solid round rod, and the top end of the core rod is provided with an octagonal prism-shaped handle 702; the middle and lower parts of the core rod 7 are respectively provided with six core rod hinge heads 701, and every two core rod hinge heads are arranged in a group at an included angle of 120 degrees in an annular array around the axis of the core rod 7; the outer diameter of the core rod 7 is matched with the inner diameter of the positioning hole 101 of the bottom plate; the size of the cross section of the handle 702 is matched with the size of the top cover through hole 402, and a die column is formed by arranging three inner die sheets 5, six inner die connecting rods 6 and a core rod 7.
The concrete implementation steps of the compaction preparation device for the geotechnical circular truncated cone-shaped seepage tensile sample are as follows:
two half mould cylinders 2 are taken to be combined, and four bolts 8 are used for fixing eight lock heads 201 which are opposite in pairs to form a sample bearing mould cylinder; the bottom plate 1 is taken and plugged into the bottom of the sample-bearing mold cylinder; taking three inner die sheets 5, six inner die connecting rods 6 and a core rod 7, and connecting an inner die hinge head 501 and a core rod hinge head 701 by the inner die connecting rods 6 to form a core die column; the core mold column extends into the sample bearing mold cylinder, the bottom end of the core rod 7 is inserted into the bottom plate positioning hole 101, the handle 702 is held to rotate the core rod 7 so as to adjust the positions of the mold sheets 5 in the three sheets until a complete thin-wall cylinder is formed; the dilatation ring 3 is taken and placed at the top of the sample-bearing mold cylinder, and the ring bottom positioning pin 301 is embedded into the mold cylinder positioning hole 202.
Filling a required stretching soil sample into a symmetrical double-truncated-cone-shaped sample bearing cavity between the outer wall of the core mold column and the inner wall of the sample bearing mold cylinder; taking the top cover 4, plugging the sample pressing pile 401 into the expansion ring 3, and simultaneously enabling the handle 702 to penetrate through the through hole 402 of the top cover; applying load on the top surface of the top cover 4 by using an external hammer or loading equipment, and compacting the sample to a set height; the top cover 4 is rotated to drive the core rod 7 to rotate simultaneously, so that the three inner mold sheets 5 are folded inwards, the outer wall of the core mold column is separated from the sample, the handle 702 is lifted, and the top cover 4 and the core mold column are simultaneously drawn out to expose the cylindrical seepage cavity in the center of the sample.
Filling the seepage cavity with a required seepage soil sample, taking the top cover 4 again, plugging the sample pressing pile 401 into the expansion ring 3, and compacting the sample pressing to a set height; and (3) disassembling the top cover 4 and the expansion ring 3 in sequence, loosening the bolts 8 and removing the two half mould cylinders 2, and taking out the prepared truncated cone-shaped seepage tensile sample to finish the sample preparation process.
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 (6)
1. The utility model provides a preparation facilities is hit to geotechnique's round platform shape seepage flow tensile sample, its characterized in that: the sample bearing device comprises two symmetrically arranged half mould cylinders, a bottom plate, a capacity expansion ring, a top cover, three inner mould sheets, six inner mould connecting rods and a core rod, wherein the two half mould cylinders are combined to form a sample bearing mould cylinder; the expansion ring is positioned at the top of the sample-bearing cylinder, and the top cover is slidably inserted into the inner side of the expansion ring; and three inner mold sheets are connected to the core rod through six inner mold connecting rods to form a core mold column inserted into the sample bearing mold cylinder.
2. The apparatus for preparing a soil engineering round platform-shaped seepage tensile sample by compaction according to claim 1, wherein: the sample bearing die cylinder is cylindrical, and a symmetrical double-truncated-cone-shaped sample bearing cavity is formed inside the sample bearing die cylinder; four locking heads are arranged on two edges of the half cylinder, the four locking heads are arranged on two sides of an opening of the half cylinder in pairs, and a cylinder positioning hole is formed in the center of a semi-circular ring surface at the top of the half cylinder.
3. The apparatus for preparing a soil engineering round platform-shaped seepage tensile sample by compaction according to claim 1, wherein: the bottom plate is in a circular plate shape, and a bottom plate positioning hole is formed in the center of the top surface of the bottom plate; the outer diameter of the bottom plate is matched with the inner diameter of the bottom end of the sample bearing mold cylinder.
4. The apparatus for preparing a soil engineering round platform-shaped seepage tensile sample by compaction according to claim 2, wherein: the capacity expansion ring is a hollow thin-wall cylinder, and two ring bottom positioning pins matched with the die cylinder positioning holes are symmetrically arranged on the bottom surface of the capacity expansion ring.
5. The apparatus for preparing a soil engineering round platform-shaped seepage tensile sample by compaction according to claim 1, wherein: the top cover is in a circular plate shape, a sample pressing pile is arranged on the bottom surface of the top cover, and an octagonal top cover through hole is formed in the center of the top cover; the outer diameter of the sample pressing pile is matched with the inner diameter of the expansion ring.
6. The apparatus for preparing soil engineering round platform shaped seepage tensile sample compaction according to claim 5, wherein: the inner matrix is a thin-wall circular arc plate, and the arc center angle is 120 degrees; the inner wall of the inner matrix is provided with four inner mold hinge heads, and one group of every two inner mold hinge heads are arranged at the upper end and the lower end of a side line; the core rod is a solid round rod, and the top end of the core rod is provided with an octagonal prism-shaped handle; the middle and lower parts of the core rod are respectively provided with six core rod hinge heads, and every two core rod hinge heads are arranged in a group in an annular array around the axis of the core rod at an included angle of 120 degrees; the outer diameter of the core rod is matched with the inner diameter of the bottom plate positioning hole; the size of the cross section of the handle is matched with that of the through hole of the top cover, and the die column is formed by arranging three inner die sheets, six inner die connecting rods and a core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122554509.9U CN215985438U (en) | 2021-10-22 | 2021-10-22 | Geotechnical circular table-shaped seepage tensile sample compaction preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122554509.9U CN215985438U (en) | 2021-10-22 | 2021-10-22 | Geotechnical circular table-shaped seepage tensile sample compaction preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215985438U true CN215985438U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122554509.9U Active CN215985438U (en) | 2021-10-22 | 2021-10-22 | Geotechnical circular table-shaped seepage tensile sample compaction preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215985438U (en) |
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2021
- 2021-10-22 CN CN202122554509.9U patent/CN215985438U/en active Active
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