CN219694684U - Split type test device suitable for geotechnical material test - Google Patents
Split type test device suitable for geotechnical material test Download PDFInfo
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- CN219694684U CN219694684U CN202321175278.3U CN202321175278U CN219694684U CN 219694684 U CN219694684 U CN 219694684U CN 202321175278 U CN202321175278 U CN 202321175278U CN 219694684 U CN219694684 U CN 219694684U
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- 238000012360 testing method Methods 0.000 title claims abstract description 99
- 239000000463 material Substances 0.000 title claims description 31
- 238000004154 testing of material Methods 0.000 abstract description 2
- 238000005056 compaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A split test device suitable for use in geotechnical material testing, comprising: the split die is formed by splicing six half-hollow cylindrical vertical dies with the same size; the lock catch is used for connecting two half-hollow cylindrical vertical molds with the same height; the vertical die base is used for installing and fixing the split die; and the threaded upright post is used for connecting the upright die base and the split die. This subdivision formula mould is when the drawing of patterns, loosen the nut to take out the screw thread stand from the upright mould base, open the hasp between each half hollow cylinder upright mould, take off half hollow cylinder upright mould, need not with the help of appurtenance such as jack and bulldozing support, can obtain complete test piece, and can not destroy the test piece after the drawing of patterns is accomplished, make experimental result more accurate when improving experimental efficiency, adopt the layering subdivision formula structure simultaneously, the height of every layer can accurate control, need not to measure labour saving and time saving.
Description
[ field of technology ]
The utility model belongs to the field of highway geotechnical indoor test equipment, and particularly relates to a split type test die device suitable for geotechnical material test.
[ background Art ]
A test cylinder within a 2.1-knot applied in the compaction test (T0103-2019) in the highway geotechnical test procedure (JTG 3430-2020), the inorganic binder-stabilized material compaction test method (T0804-1994) in the highway engineering inorganic binder-stabilized material test procedure (JTG E51-2009). During the test, the test piece is filled into the test cylinder in layers, each layer is compacted by the hammer, the test piece is molded in the test cylinder, then the test piece is ejected out of the test cylinder by the electric stripper under the assistance of the jack and the bulldozing bracket, however, the method can lead to the fact that the edge part of the test piece is easily damaged by the thrust action in the process of setting out the test piece, and for some low-strength test pieces, even large-area damage is caused, and the compactness of soil is changed; meanwhile, the electric stripper needs to be connected with a power supply, and has requirements on the use environment. Meanwhile, because auxiliary tools such as a jack and a bulldozing bracket are needed, when layered filling is adopted in the traditional test, the heights of all layers are not well controlled, and continuous measurement is needed, the operation is complicated, and therefore the working hours are wasted.
[ utility model ]
In order to solve the problems, the split type test device suitable for geotechnical material test is provided by the utility model, auxiliary tools such as a jack and a bulldozing bracket are not needed, demolding equipment is not needed, the test piece can be demolded by opening a lock catch and a threaded upright post, the test piece cannot be damaged after demolding is finished, the test result is more accurate while the experimental efficiency is improved, meanwhile, the split type test device is in a split type structure, the height of each layer can be accurately controlled, measurement is not needed, and time and labor are saved.
The utility model is realized by the following technical scheme, and provides a split type test device suitable for geotechnical material test, which comprises:
at least two semi-hollow cylindrical vertical molds are assembled into a split mold, the side walls of the split mold symmetrically extend outwards to form hanging lugs, positioning holes are formed in the hanging lugs, and fixing columns are symmetrically arranged at the end parts of the semi-hollow cylindrical vertical molds;
a shackle for connecting two semi-hollow cylindrical vertical molds, comprising: the fixing ring is movably arranged on the fixing column, a connecting sheet radially extends out of the side wall of the fixing ring, a groove which is suitable for the fixing column is formed in the connecting sheet, and the groove faces downwards towards the opening;
the upper part of the vertical die base is symmetrically provided with threaded holes, and the center of the vertical die base is provided with a fixed slot which is matched with the split die;
two threaded upright posts for connecting the split die and the vertical die base are sequentially inserted into the positioning holes and the threaded holes, and the threaded upright posts are positioned above the hanging lugs and fixed by nuts.
In particular, the hangers are arranged at the center of the outer wall of the semi-hollow cylindrical vertical die, so that the two semi-hollow cylindrical vertical dies are more uniformly stressed, and the later-stage test piece demoulding is facilitated.
In particular, it comprises: six half-hollow cylindrical vertical molds are corresponding to each other in pairs and are coaxially arranged to form a split mold.
In particular, the upper surfaces of two semi-hollow cylindrical vertical molds which are adjacent up and down are provided with an annular groove, and the lower surfaces extend to form annular bulges which are matched with the annular groove; by the design, after the upper half-hollow cylindrical vertical die and the lower half-hollow cylindrical vertical die are contacted, the annular protrusion falls in the annular groove, so that the connection tightness between the upper half-hollow cylindrical vertical die and the lower half-hollow cylindrical vertical die can be improved, and the sample can be prevented from overflowing along the gap between the two half-hollow cylindrical vertical dies when the sample is filled.
Particularly, one side wall of one fixed column on the semi-hollow cylindrical vertical mold is provided with an annular groove which is matched with the fixed ring, and the other side wall of the other fixed column is provided with an arc-shaped groove which is matched with the groove; the design can avoid the fixed ring from falling off from the fixed column after long-time work, and in the utility model, the end part of the fixed column is connected with a fixed block through threads, so that the lock catch can be replaced when the lock catch is not tightly buckled; meanwhile, the grooves on the lock buckles can be perfectly contacted with the arc-shaped grooves, the ends of the fixing columns are buckled, the problems that the ends of the lock buckles are separated from the ends of the fixing columns and the like are avoided, the connection tightness of the split type die in filling test samples is further improved, the test samples are ensured to meet the test requirements, and the accuracy of the test results is indirectly improved.
Particularly, the distances from the annular groove and the arc groove to the semi-hollow cylindrical vertical mold are larger than the distances from the connecting sheet to the semi-hollow cylindrical vertical mold; so design, the hasp detains in the fixed column at the buckle, can not contact with the subdivision formula mould surface, is convenient for later stage deviate from the hasp in the arc wall of fixed column tip to the taking out of test piece of being convenient for.
In particular, the fixed ring is movably connected with the fixed column through a bearing; so design has increased the flexibility between solid fixed ring and the fixed column, when needs take out the test piece, separates the recess of hasp tip and the arc wall on the fixed column, is convenient for accomplish the separation of hasp in the fixed column.
In particular, a sleeve is sleeved above the split die, the sleeve can prevent the compaction device from playing a positioning role and from being emptied in the compaction device, and the height of the threaded upright post is higher than that of the split die, so that the sleeve can be conveniently installed.
The utility model provides a split type mold testing device suitable for geotechnical material test, which can finish the layered filling of a test piece by arranging split type molds in a layered manner, and the thickness of each layer is controllable; the split type die can be combined and separated through the threaded upright post and the lock catch, after filling of a test piece is completed, the threaded upright post is taken down, the lock catch is opened, and the test piece can be obtained without applying acting force to the test piece. The split type mold testing device has the following beneficial effects:
(1) The structure is simple, and the device is convenient to popularize in indoor and outdoor geotechnical tests;
(2) The mold testing device is convenient to assemble and disassemble, so that the test efficiency is improved;
(3) After the geotechnical test material is compacted or molded in other modes in the split test mold, the demolding of the sample does not need special demolding equipment any more, and the complete sample can be conveniently obtained by demolding after the test mold is disassembled manually;
(4) The test mould device is built by three layers, so that the test materials can be filled and compacted in layers in the test, and the compaction effect of each layer of geotechnical test materials is improved.
To sum up, this subdivision formula test device has characteristics such as simple structure, convenient operation, environmental practicality are strong, and whole journey need not to consume the electric energy and can accomplish the test piece drawing of patterns, can not cause the damage to the test piece.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a split test device suitable for geotechnical material test;
FIG. 2 is a schematic structural view of a hollow cylindrical vertical mold in a split mold testing device suitable for geotechnical material test;
FIG. 3 is a schematic view of a latch in a split mold testing device suitable for geotechnical material test according to the present utility model;
FIG. 4 is a cross-sectional view of a chassis in a split mold testing device suitable for geotechnical material testing in accordance with the present utility model.
In the drawing, a 1 semi-hollow cylindrical vertical die, 2 lugs, 3 positioning holes, 4 fixing columns, 5 lock catches, 6 fixing rings, 7 connecting sheets, 8 grooves, 9 vertical die bases, 10 threaded holes, 11 fixing grooves, 12 threaded upright posts, 13 nuts, 14 annular grooves, 16 annular grooves and 17 arc grooves are formed.
[ detailed description ] of the utility model
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Referring to fig. 1, the present utility model provides a split test device suitable for geotechnical material test, and the split test device suitable for geotechnical material test comprises: a split die, a vertical die base 9 and two threaded upright posts 12; the side wall of the split die symmetrically extends outwards to form a hanging lug 2, and a positioning hole 3 is formed in the hanging lug 2; screw holes 10 are symmetrically formed above the vertical die base 9, and a fixed groove 11 which is matched with the split die is formed in the center of the vertical die base; the threaded upright post 12 is sequentially inserted into the positioning hole 3 and the threaded hole 10, and in order to limit the upper part of the split die, the threaded upright post 12 is positioned above the hanging lug 2 and is fixed by adopting a nut 13, and the tight connection between the split die and the vertical die base 9 can be realized by rotating the nut 13.
Referring to fig. 2, in the geotechnical material test, a layer of material is generally filled in a test mold, and a layer of material is filled after a layer of material is compacted or tamped, so that in order to improve the compaction effect of each layer of geotechnical test material, the split mold is divided into three layers, each layer is formed by splicing two half-hollow cylindrical vertical molds 1, in order to facilitate the later demolding, the two half-hollow cylindrical vertical molds 1 are uniformly stressed, and the hanging lugs 2 are arranged at the middle position of the outer wall of the half-hollow cylindrical vertical mold 1. In order to facilitate the connection and separation of the two half-hollow cylindrical vertical molds 1, the outer walls of the two end parts of the half-hollow cylindrical vertical molds 1 are respectively provided with a fixed column 4, and each layer of the two half-hollow cylindrical vertical molds 1 pass through a lock catch 5; the lock catch 5 includes: the fixed ring 6 is movably arranged on the fixed column 4, a connecting sheet 7 radially extends from the side wall of the fixed ring 6, a groove 8 which is adapted to the fixed column 4 is arranged on the connecting sheet 7, and the groove 8 faces downwards towards the opening.
When the sample is hit, the sample may overflow along the gap between the upper and lower half-hollow cylindrical vertical molds 1, so as to affect the compaction of the sample, so that an annular groove 14 is formed on the upper surfaces of the upper and lower adjacent half-hollow cylindrical vertical molds 1, and an annular protrusion (not shown in the figure) adapted to the annular groove 14 extends from the lower surface of the other half-round hollow cylindrical vertical mold 1 contacted with the annular groove; by the design, the annular bulge can be perfectly contacted with the annular groove 14, so that the connection tightness between the upper half hollow cylindrical vertical die 1 and the lower half hollow cylindrical vertical die 1 is improved, overflow in the sample compaction process is avoided, the time compactness is indirectly improved, and the accuracy of test results is ensured.
The lock catch 5 needs to be opened and closed when the two semi-hollow cylindrical vertical molds 1 are separated and combined, in order to avoid the lock catch 5 from falling out of the fixed columns 4 or affecting the clamping degree after long-time working, the side wall of one fixed column 4 on the semi-hollow cylindrical vertical mold 1 is provided with an annular groove 16 which is matched with the fixed ring 6, and the side wall of the other fixed column 4 is provided with an arc groove 17 which is matched with the groove 8; the inner diameter of the fixing ring 6 is smaller than the outer diameter of the fixing column 4, so that the fixing ring 6 can be movably arranged in the annular groove 16, and can not be separated from the fixing column 4 even after long-time working, the groove 8 can perfectly fall in the arc-shaped groove 17, and the arc-shaped groove 17 can play a limiting role on the groove 8 when a sample is hit, so that the separation of the groove 8 and the fixing column 4 is avoided.
After the test piece is filled and compacted, the test piece needs to be taken out, in order to facilitate the opening of the lock catch 5, the distance from the annular groove 16 and the arc groove 17 to the semi-hollow cylindrical vertical die 1 is larger than the distance from the connecting piece 7 to the semi-hollow cylindrical vertical die 1, so that the connecting piece 7 cannot be in contact with the semi-hollow cylindrical vertical die 1, and the connecting piece 7 is conveniently and rapidly separated from the end part of the fixing column 4, thereby realizing rapid demoulding.
In the present utility model, a sleeve (not shown) is further sleeved above the split mold, the sleeve and the split mold can be connected by a clamping sleeve, and two lugs can be arranged on the outer side of the sleeve and connected by a threaded upright 12, so that the height of the threaded upright is higher than that of the split mold.
The installation method comprises the following steps:
firstly, placing a vertical mould base 9 on the ground, and screwing two threaded upright posts 2 into threaded holes 10 of the vertical mould base 9 respectively; then, taking out two semi-hollow cylindrical vertical molds 1, putting the vertical molds into the fixing groove 11 of the vertical mold base 9, and enabling the positioning holes 3 on the hanging lugs 2 to penetrate through the threaded upright posts 12 during installation; then, the fixing ring 6 is rotated, the grooves 8 on the connecting sheet 7 fall into the arc grooves 17, so that the connection of the two semi-hollow cylindrical vertical molds 1 can be completed, all the semi-hollow cylindrical vertical molds 1 are installed according to the method, the nuts 13 are screwed in, the fixation between the semi-hollow cylindrical vertical molds 1 of each layer can be completed, and meanwhile, the vertical movement of the semi-hollow cylindrical vertical molds 1 in the sample compaction process can be prevented.
The using method comprises the following steps:
after the installation of the lower layer semi-hollow cylindrical vertical mold 1 is completed, filling sample materials into the lower layer split mold, tamping the sample by using a hammer, installing the middle layer split mold according to the mode, continuously adding sample materials and tamping, finally installing the top split mold and adding the sample, tamping the sample, and finally completing the layering filling process.
After the test piece is filled, firstly, the nuts 13 on the threaded upright posts 12 are loosened, the threaded upright posts 12 are rotated to be screwed out of the threaded holes 10 on the vertical die base 9, all the lock catches 5 are opened, and the lugs 2 outside the semi-hollow cylindrical vertical die 1 are held to be pulled outwards, so that the complete test piece can be taken out.
In summary, the split type test device provided by the utility model adopts a split structure, a layer of vertical die can be installed to fill a layer of sample and compact a layer of sample, and the split type structure is convenient for quickly compacting each layer, so that the overall compactness and uniformity of the finally filled test piece are higher. And through layering setting, can accurate control every layer of height, need not to measure, labour saving and time saving. When the test piece is demolded, the lock catch 5 between the half hollow cylindrical vertical molds 1 of each layer is opened, and the test piece can be obtained without applying acting force to the test piece. The device has advantages of simple structure, convenient operation, strong environmental adaptability, no consumption of electric energy, high demoulding quality and the like, and can not damage a test piece in the demoulding process.
Claims (8)
1. A split type test device suitable for geotechnical material test is characterized in that,
comprising the following steps:
at least two semi-hollow cylindrical vertical molds (1) which are assembled into a split mold, wherein hanging lugs (2) symmetrically extend outwards from the side walls of the split mold, positioning holes (3) are formed in the hanging lugs (2), and fixing columns (4) are symmetrically arranged at the end parts of the semi-hollow cylindrical vertical molds (1);
a shackle (5) for connecting two semi-hollow cylindrical vertical moulds (1), comprising: a fixed ring (6) movably arranged on the fixed column (4), a connecting sheet (7) radially extends from the side wall of the fixed ring (6), a groove (8) which is adapted to the fixed column (4) is arranged on the connecting sheet (7), and the groove (8) faces downwards towards the opening;
the upper part of the vertical die base (9) is symmetrically provided with threaded holes (10), and the center of the vertical die base (9) is provided with a fixed slot (11) which is matched with the split die;
two threaded upright posts (12) for connecting the split die and the vertical die base (9) are sequentially inserted into the positioning holes (3) and the threaded holes (10), and the threaded upright posts (12) are positioned above the hanging lugs (2) and fixed by nuts (13).
2. The split test device suitable for geotechnical material test according to claim 1, wherein the hanging lugs (2) are arranged at the center of the outer wall of the semi-hollow cylindrical vertical mould (1).
3. The split mold testing device suitable for geotechnical material test according to claim 1, comprising: six semi-hollow cylindrical vertical molds (1) are arranged in a coaxial mode, and the split molds are formed.
4. A split test device suitable for geotechnical material test according to claim 3, wherein the upper surface of two semi-hollow cylindrical vertical moulds (1) adjacent to each other is provided with an annular groove (14), and the lower surface extends to form an annular bulge which is suitable for the annular groove (14).
5. The split test device suitable for geotechnical material test according to claim 1, wherein one side wall of one fixed column (4) on the semi-hollow cylindrical vertical mold (1) is provided with an annular groove (16) which is suitable for the fixed ring (6), and the other side wall of the other fixed column (4) is provided with an arc-shaped groove (17) which is suitable for the groove (8).
6. The split test device suitable for geotechnical material test according to claim 5, wherein the distance from the annular groove (16) and the arc-shaped groove (17) to the semi-hollow cylindrical vertical mold (1) is larger than the distance from the connecting sheet (7) to the semi-hollow cylindrical vertical mold (1).
7. The split type test device suitable for geotechnical material test according to claim 5, wherein the fixing ring (6) is movably connected with the fixing column (4) through a bearing.
8. The split test device suitable for geotechnical material test according to claim 1, wherein a sleeve is sleeved above the split die, and the height of the threaded column (12) is higher than that of the split die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175278.3U CN219694684U (en) | 2023-05-16 | 2023-05-16 | Split type test device suitable for geotechnical material test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175278.3U CN219694684U (en) | 2023-05-16 | 2023-05-16 | Split type test device suitable for geotechnical material test |
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| Publication Number | Publication Date |
|---|---|
| CN219694684U true CN219694684U (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321175278.3U Active CN219694684U (en) | 2023-05-16 | 2023-05-16 | Split type test device suitable for geotechnical material test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219694684U (en) |
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2023
- 2023-05-16 CN CN202321175278.3U patent/CN219694684U/en active Active
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