CN204008287U - A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen - Google Patents
A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen Download PDFInfo
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- CN204008287U CN204008287U CN201420461699.7U CN201420461699U CN204008287U CN 204008287 U CN204008287 U CN 204008287U CN 201420461699 U CN201420461699 U CN 201420461699U CN 204008287 U CN204008287 U CN 204008287U
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Abstract
A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen, comprise for fixedly the first hollow cylinder cylindrical shell, second hollow cylinder cylindrical shell and the O-ring seal of sample, described the first hollow cylinder cylindrical shell is that igelite cloth is made, described the second hollow cylinder cylindrical shell is that rubber diaphragm is made, the first hollow cylinder cylindrical shell is enclosed within the second hollow cylinder cylindrical shell, and the second hollow cylinder cylindrical shell upper/lower terminal is respectively equipped with O-ring seal.A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen of the utility model, this device has not only solved sample sealing problem under triaxial test high confining pressure condition, guarantees success of the test rate, convenient operation.
Description
Technical field
A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen of the utility model, relates to earth and rockfill dam Coarse Aggregate triaxial shear test field.
Background technology
Instantly rock-fill dams are gradually the southwest trend of development, and high dam occurs on a large scale.It is short that the type dam has the dam body construction period, special landform, geology, dam foundation condition, and compaction quality requires high.Therefore, due to the raising of height of dam, make to test the control parameters such as confined pressure and greatly improve, the sealing of original coarse-grained soil triaxial shear test fixedly sample device by: rubber membrane and bungee form.With rubber membrane, sample is wrapped up, then fixed by bungee, the method rubber membrane in the situation that confined pressure is excessive is easy to break, and causes test failure to affect the process of experiment work.Meanwhile, adopt that bungee ties up that seal operation is loaded down with trivial details, bungee easily aging, change the unfavorable factors such as frequent, thereby increase the uncertainty of process of the test.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen, and this device has not only solved sample sealing problem under triaxial test high confining pressure condition, guarantees success of the test rate, convenient operation.
The technical scheme that the utility model is taked is:
A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen, comprise for fixedly the first hollow cylinder cylindrical shell, second hollow cylinder cylindrical shell and the O-ring seal of sample, described the first hollow cylinder cylindrical shell is that igelite cloth is made, described the second hollow cylinder cylindrical shell is that rubber diaphragm is made, the first hollow cylinder cylindrical shell is enclosed within the second hollow cylinder cylindrical shell, and the second hollow cylinder cylindrical shell upper/lower terminal is respectively equipped with O-ring seal.
Described the first hollow cylinder cylindrical shell is close to the inwall of the second hollow cylinder cylindrical shell, and keeps straight.
Described the first hollow cylinder cylindrical shell diameter 300mm, wall thickness 1mm, length are 600mm.
Described the second hollow cylinder cylindrical shell diameter 300mm, wall thickness 5mm, length are 700mm.
Described O-ring seal is provided with hold-doun nut, retaining thread mouth, the collar.
A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen of the utility model, first rubber membrane hollow cylinder cylindrical shell is fixed in sample bucket, at rubber membrane hollow cylinder cylindrical shell inner sleeve one deck igelite cloth, then according to corresponding code requirement, fill sample.After dress sample, O-ring seal is individually fixed in the upper and lower porous disc water stopping trough of sample, by this device, can solves quickly and easily triaxial test sample sealing problem under high confining pressure condition on the one hand; Improve the success ratio of triaxial test under high confining pressure simultaneously, and convenient operation.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model device;
Fig. 2 is the utility model device plan structure schematic diagram;
Fig. 3 is the ring structure schematic diagram of the utility model device.
Embodiment
As shown in Figure 1, a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen, comprises for fixedly the first hollow cylinder cylindrical shell 1, the second hollow cylinder cylindrical shell 2 and the O-ring seal 3 of sample 4.Described O-ring seal 3 is provided with hold-doun nut 5, retaining thread mouth 6, the collar 7.
Described the first hollow cylinder cylindrical shell 1 is made for igelite cloth, described the second hollow cylinder cylindrical shell 2 is made for rubber diaphragm, the first hollow cylinder cylindrical shell 1 is enclosed within the second hollow cylinder cylindrical shell 2, and the second hollow cylinder cylindrical shell 2 upper/lower terminals are provided with O-ring seal 3.Described the first hollow cylinder cylindrical shell 1 is close to the inwall of the second hollow cylinder cylindrical shell 2, and keeps straight.
Described the first hollow cylinder cylindrical shell 1 diameter 300mm, wall thickness 1mm, length are 600mm.Described the second hollow cylinder cylindrical shell 2 diameter 300mm, wall thickness 5mm, length are 700mm.
Implementation step:
1), by the regulation of rules < < earthwork test rule-coarse-grained soil triaxial compression test > > (SL 237-060-1999), get earth material ready, according to the dry density water percentage of testing requirements and sample 4 sizes, calculate and take the required soil sample of test.
2), by the soil sample of getting ready by the filling number of plies, be divided into several equal portions, should prevent the separated homogeneity that guarantees sample 4 of large or fine granule.
3), porous disc is placed in specimen mount, drive water valve into, specimen mount porous disc is filled with water to without bubble and overflows, valve-off.
4), on base, tie rubber membrane, be mounted to type tube, rubber diaphragm is turned up on forming tube, and makes it straight and be close to forming tube inwall.
5), in rubber membrane, be inserted in igelite cloth, and make igelite cloth straight and be close to rubber membrane inwall.
6), pack ground floor soil sample into and evenly stroke plane surface, by the method for vibrating, soil sample is reached and estimate after height, more in kind insert second layer soil sample, so continue until install last one deck leveling surface, add porous disc and sample cap, with O-ring seal 3, tighten rubber membrane.
7), remaining step carries out according to < < earthwork test rule-coarse-grained soil triaxial compression test > > (SL 237-060-1999).
Claims (5)
1. the triaxial compression test sealed fixing device for coarse-grained soil specimen, comprise for fixedly the first hollow cylinder cylindrical shell (1), the second hollow cylinder cylindrical shell (2) and the O-ring seal (3) of sample (4), it is characterized in that, described the first hollow cylinder cylindrical shell (1) is made for igelite cloth, described the second hollow cylinder cylindrical shell (2) is made for rubber diaphragm, the first hollow cylinder cylindrical shell (1) is enclosed within the second hollow cylinder cylindrical shell (2), and the second hollow cylinder cylindrical shell (2) upper/lower terminal is respectively equipped with O-ring seal (3).
2. a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen according to claim 1, is characterized in that, described the first hollow cylinder cylindrical shell (1) is close to the inwall of the second hollow cylinder cylindrical shell (2), and keeps straight.
3. a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen according to claim 1, is characterized in that, described the first hollow cylinder cylindrical shell (1) diameter 300mm, wall thickness 1mm, length are 600mm.
4. a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen according to claim 1, is characterized in that, described the second hollow cylinder cylindrical shell (2) diameter 300mm, wall thickness 5mm, length are 700mm.
5. a kind of triaxial compression test sealed fixing device for coarse-grained soil specimen according to claim 1, is characterized in that, described O-ring seal (3) is provided with hold-doun nut (5), retaining thread mouth (6), the collar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461699.7U CN204008287U (en) | 2014-08-15 | 2014-08-15 | A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461699.7U CN204008287U (en) | 2014-08-15 | 2014-08-15 | A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204008287U true CN204008287U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420461699.7U Expired - Fee Related CN204008287U (en) | 2014-08-15 | 2014-08-15 | A kind of triaxial compression test sealed fixing device for coarse-grained soil specimen |
Country Status (1)
| Country | Link |
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| CN (1) | CN204008287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865874A (en) * | 2016-05-11 | 2016-08-17 | 同济大学 | Sample preparing device suitable for sandy soil laboratory tests |
-
2014
- 2014-08-15 CN CN201420461699.7U patent/CN204008287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865874A (en) * | 2016-05-11 | 2016-08-17 | 同济大学 | Sample preparing device suitable for sandy soil laboratory tests |
| CN105865874B (en) * | 2016-05-11 | 2018-11-13 | 同济大学 | A kind of sample preparation device suitable for sandy soil laboratory test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180815 |