CN212674662U - Loess oblique joint model preparation device for direct shear experiment - Google Patents
Loess oblique joint model preparation device for direct shear experiment Download PDFInfo
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- CN212674662U CN212674662U CN202020652463.7U CN202020652463U CN212674662U CN 212674662 U CN212674662 U CN 212674662U CN 202020652463 U CN202020652463 U CN 202020652463U CN 212674662 U CN212674662 U CN 212674662U
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- joint
- ring
- cutting ring
- sample preparation
- loess
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a loess oblique joint model preparation facilities for direct shear experiment. By compaction equipment, joint mould, system appearance ring, sleeve and cutting ring constitute, be provided with the elevation on the compaction equipment, compaction equipment is provided with the hammer, and the bottom of hammer is provided with hits the pad, hits and is provided with the joint groove on the pad lateral wall, the joint mould is including joint handle and joint piece, and the joint handle setting is provided with system appearance ring draw-in groove on the joint piece both sides limit, on the system appearance ring lateral wall, the sleeve with cutting ring and system appearance ring fixed connection, put the joint piece between cutting ring and the system appearance ring, the joint handle is put into system appearance ring draw-in groove and is rotated the chucking, puts into between cutting ring and the system appearance ring and looses native, and the joint mould is put into along the joint groove, then wholly put into between cutting ring and the system appearance ring. The utility model discloses simple structure can realize the shear strength survey of oblique joint loess.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering, especially, relate to a loess oblique joint model preparation facilities for direct shear experiment
Background
Loess has characteristics of large pores, weak cementation, vertical joint development and the like, so that the loess is easy to be destabilized and damaged under internal and external factors. In the research process of loess deformation and instability mechanism, the physical and mechanical parameters of loess are the basic conditions for research. The direct shear test is one of important test methods for measuring the shear strength index of a soil body in a conventional indoor geotechnical test. Because of being limited by the technical conditions of joint model preparation, the shear strength corresponding to the unsmooth loess under the action of different vertical pressures is mainly researched based on a direct shear experiment at present, and the shear strength measurement of the vertical joint and the oblique joint loess is well known, so that the research work in the field of geotechnical engineering is greatly limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a loess oblique joint model preparation facilities for direct shear experiment, simple structure can realize oblique joint loess shear strength survey.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a loess oblique joint model preparation facilities for staight scissors experiment, by compaction equipment, joint mould, system appearance ring, sleeve and cutting ring constitute, the last elevation that is provided with of compaction equipment, compaction equipment are provided with the hammer, and the bottom of hammer is provided with hits the pad, hits and is provided with the joint groove on the pad lateral wall, the joint mould is including joint handle and joint piece, and the joint handle setting is provided with system appearance ring clamping groove on the both sides limit of joint piece, on the system appearance ring lateral wall, the sleeve is with cutting ring and system appearance ring fixed connection, has put the joint piece between cutting ring and the system appearance ring, and the joint handle is put into system appearance ring clamping groove and is rotated the chucking tightly, puts into between cutting ring and the system appearance ring and looses soil, and the joint mould is put into along the joint groove, then wholly put into between cutting ring and the system appearance ring.
The inner diameter of the sleeve is equal to the outer diameter of the cutting ring, and the sleeve is higher than the cutting ring.
The cutting ring is arranged in the sleeve, and the sample preparation ring is arranged on the upper part of the cutting ring.
This patent adopts compaction equipment to make it reach predetermined density, takes out the joint mould, puts into joint simulation material on sample joint face.
Compared with the prior art, the beneficial effects of the utility model are that: simple structure can realize the shear strength survey of oblique joint loess.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic view of the structure of the compacting apparatus of the present invention;
FIG. 3 is a schematic view of the joint mold of the present invention;
fig. 4 is a schematic diagram of a sample preparation ring structure according to the present invention;
FIG. 5 is a schematic view of the sleeve structure of the present invention;
fig. 6 is a schematic view of the cutting ring structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a loess oblique joint model preparation device for direct shear experiments comprises a compaction device 1, a joint mould 2, a sample preparation ring 3, a sleeve 4 and a cutting ring 5, the compacting equipment 1 is provided with an elevation 11, the bottom of the compacting equipment 1 is provided with a hammer 12, the hammer 12 is provided with a beating pad 13, the side wall of the beating pad 13 is provided with a joint groove 14, the joint die 2 comprises a joint handle 21 and joint pieces 22, the joint handle 21 is arranged on two side edges of the joint pieces 22, a sample making ring clamping groove 31 is arranged on the side wall of the sample making ring 3, the cutting ring 5 and the sample preparation ring 3 are fixedly connected through the sleeve 4, the joint sheet 22 is placed between the cutting ring 5 and the sample preparation ring 3, the joint handle 21 is placed into the sample preparation ring clamping groove 31 and is clamped in a rotating mode, soil is placed between the cutting ring 5 and the sample preparation ring 3, the joint mold (2) is placed along the joint groove (14), and then the joint mold (5) and the sample preparation ring (3) are integrally placed.
The inner diameter of the sleeve 4 is equal to the outer diameter of the cutting ring 5, and the sleeve 4 is higher than the cutting ring 5.
The cutting ring 5 is arranged in the sleeve 4, and the sample preparation ring 3 is arranged on the upper part of the cutting ring 5.
As shown in fig. 2, the structure of the compacting device is schematic; and putting a certain amount of loose soil into the cutting ring and the sample preparation ring, putting the joint groove into the cutting ring and the sample preparation ring along the joint mould, adopting compaction equipment to enable the joint groove to reach a preset density, taking out the joint mould, and putting a joint simulation material into a joint surface of the sample.
Fig. 3 is a schematic structural diagram of a joint die, wherein a joint handle 21 of the joint die 2 is clamped in a sample ring clamping groove 31 and is rotated to be clamped tightly, and a joint piece 22 is placed in the sample ring 3.
Fig. 4-6 are schematic structural views of the sample preparation ring, the sleeve and the cutting ring.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a loess oblique joint model preparation facilities for direct shear experiment which characterized in that: the soil sample preparation device is characterized by comprising a compaction device (1), a joint mold (2), a sample preparation ring (3), a sleeve (4) and a cutting ring (5), wherein an elevation (11) is arranged on the compaction device (1), a hammer (12) is arranged at the bottom of the compaction device (1), a beating pad (13) is arranged at the bottom of the hammer (12), a joint groove (14) is formed in the side wall of the beating pad (13), the joint mold (2) comprises a joint handle (21) and a joint sheet (22), the joint handle (21) is arranged on two side edges of the joint sheet (22), a sample preparation ring clamping groove (31) is formed in the side wall of the sample preparation ring (3), the cutting ring (5) and the sample preparation ring (3) are fixedly connected by the sleeve (4), the joint sheet (22) is arranged between the cutting ring (5) and the sample preparation ring (3), the joint handle (21) is placed in the sample preparation ring clamping groove (31) and rotates, and soil is placed between the clamping cutting ring (5) and the sample preparation ring (3), the joint mould (2) is placed along the joint groove (14) and then integrally placed between the cutting ring (5) and the sample preparation ring (3).
2. The loess diagonal joint model preparing device for the direct shear test as claimed in claim 1, wherein: the inner diameter of the sleeve (4) is equal to the outer diameter of the cutting ring (5), and the sleeve (4) is higher than the cutting ring (5).
3. The loess diagonal joint model preparing device for the direct shear test as claimed in claim 1, wherein: the cutting ring (5) is arranged in the sleeve (4), and the sample preparation ring (3) is arranged at the upper part of the cutting ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652463.7U CN212674662U (en) | 2020-04-26 | 2020-04-26 | Loess oblique joint model preparation device for direct shear experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020652463.7U CN212674662U (en) | 2020-04-26 | 2020-04-26 | Loess oblique joint model preparation device for direct shear experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212674662U true CN212674662U (en) | 2021-03-09 |
Family
ID=74814158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020652463.7U Active CN212674662U (en) | 2020-04-26 | 2020-04-26 | Loess oblique joint model preparation device for direct shear experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212674662U (en) |
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2020
- 2020-04-26 CN CN202020652463.7U patent/CN212674662U/en active Active
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