CN204255749U - For the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample - Google Patents
For the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample Download PDFInfo
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- CN204255749U CN204255749U CN201420578197.2U CN201420578197U CN204255749U CN 204255749 U CN204255749 U CN 204255749U CN 201420578197 U CN201420578197 U CN 201420578197U CN 204255749 U CN204255749 U CN 204255749U
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- fixed frame
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Abstract
A kind of rock structural face direct shear apparatus plane shear head corollary apparatus for circular rock structural face sample, comprise plane shear head and shear oil cylinder, mounting plane cutting head on the motion end of shearing oil cylinder, direct shear apparatus plane shear head corollary apparatus comprises square fixed frame and fastener, square fixed frame comprises the square fixed frame of the square fixed frame of lower floor and upper strata, the square fixed frame of lower floor is positioned at the top of the square fixed frame in upper strata and is mutually permanently connected, the inside of upper strata fixed frame and lower floor's fixed frame is the station cavity for placing circular rock structural face sample to be tested, the centre position on four limits of the square fixed frame in upper strata has bolt hole, and fastener is fastening bolt, and fastening bolt is supported on circular rock structural face sample to be tested through bolt hole.The utility model can test circular rock structural face sample, and has easy to operate, that expense is low, speed is fast, test result precision is high feature.
Description
Technical field
The utility model relates to the rock structural face direct shear apparatus plane shear head corollary apparatus for circular rock structural face sample, is applicable to circular rock structural face sample direct shear test.The utility model belongs to field of engineering technology.
Background technology
Direct shear test is the main experimental means obtaining Shear Strength along Rock Stratum Plane mechanical index.Because the cutting head of existing rock structural face direct shear apparatus is plane, therefore, it is rock structural face that is square or rectangle that conventional rock structural face direct shear apparatus is mainly applicable to flat shape, and is that circular configuration interview sample cannot utilize the rock structural face direct shear apparatus that existing cutting head side is plane to carry out direct shear test for profile.In order to test circular configuration interview sample shearing strength, Normal practice adopts cutting machine that circular configuration interview sample is cut into square or rectangle could be used for the conventional rock structural face direct shear apparatus with plane shear head, such process not only expense is large, long in time limit, operating difficulties, and there is anisotropic properties due to structural plane, square or rectangular configuration face can only be tested and parallel with sample lateral surface or the shearing strength of vertical direction, and the shearing strength of structural plane all directions cannot be obtained, therefore the anisotropic properties of Shear Strength along Rock Stratum Plane cannot also just be obtained, also just the weakest glide direction of rock mass discontinuity can not be obtained.
Summary of the invention
In order to solve the existing rock structural face direct shear apparatus with plane shear head, can only to test profile be shearing strength that is square or rectangular configuration face, and the deficiency that flat shape is circular configuration face shearing strength cannot be measured, the utility model provides a kind of plane shear head corollary apparatus for circular configuration interview sample, the plane shear head of this device and rock structural face direct shear apparatus matches, the shearing strength direct shear test utilizing existing conventional rock structural face direct shear apparatus to carry out circular configuration interview sample can be solved, not only can test the circular configuration interview sample of multiple yardstick (100mm-1000mm), and have easy to operate, expense is low, speed is fast, the feature that test result precision is high.
The utility model solves the technical scheme that its technical matters adopts:
A kind of rock structural face direct shear apparatus plane shear head corollary apparatus for circular configuration interview sample, described rock structural face direct shear apparatus comprises plane shear head and shears oil cylinder, the motion end of described shearing oil cylinder installs described plane shear head, described direct shear apparatus plane shear head corollary apparatus comprises square fixed frame and fastener, described square fixed frame comprises the square fixed frame of the square fixed frame of lower floor and upper strata, the square fixed frame of described lower floor is positioned at the top of the square fixed frame in upper strata and is mutually permanently connected, the inside of described upper strata fixed frame and lower floor's fixed frame is the station cavity for placing circular rock structural face sample to be tested, the centre position on four limits of the square fixed frame in described upper strata has bolt hole, and described fastener is fastening bolt, and described fastening bolt is supported on circular rock structural face sample to be tested through described bolt hole.
Further, four angles of the square fixed frame in described upper strata also have bolt hole.The inside of spiro keyhole position square fixed frame in upper strata, bolt length can carry out choose reasonable according to the size of circular rock structural face sample.
The beneficial effects of the utility model are mainly manifested in: the utility model gives the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample, can coordinate the shearing strength of the multiple dimensioned circular rock structural face sample of the plane shear head test series of direct shear apparatus.This corollary apparatus and direct shear test method tool have the following advantages: (1) is easy to operate, cost is low, the duration is short; (2) range of size of testable circular configuration interview sample is 100mm ~ 1000mm; (3) direction, rotational structure face is only needed, just can the anisotropic properties of test structure face shearing strength, and this device is without the need to sample preparation evolution, stringency of test is high.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the plane shear head corollary apparatus for circular configuration interview sample.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
See figures.1.and.2, a kind of rock structural face direct shear apparatus plane shear head corollary apparatus for circular rock structural face sample, described rock structural face direct shear apparatus comprises plane shear head 5 and shears oil cylinder 6, the motion end of described shearing oil cylinder 6 installs described plane shear head 5, described direct shear apparatus plane shear head corollary apparatus comprises square fixed frame and fastener, described square fixed frame comprises the square fixed frame 2 of the square fixed frame of lower floor 1 and upper strata, the square fixed frame of described lower floor 1 is positioned at the below of the square fixed frame 2 in upper strata and is mutually permanently connected, the inside of described upper strata fixed frame 2 and lower floor's fixed frame 1 is the station cavity for placing circular rock structural face sample 7 to be tested, the centre position on four limits of the square fixed frame 2 in described upper strata has bolt hole 3, and described fastener is fastening bolt 4, and described fastening bolt 4 is supported on circular rock structural face sample 7 to be tested through described bolt hole 3.
Further, four angles of the square fixed frame 2 in described upper strata also have bolt hole.The inside of spiro keyhole position square fixed frame in upper strata, the length of bolt can carry out choose reasonable according to the size of circular rock structural face sample.
The square fixed frame of levels is fixed together by welding, and also can adopt other fixed forms.
The direct shear test method of the circular rock structural face sample that the present embodiment realizes, said method comprising the steps of:
A () selects the circular rock structural face sample 7 of the setting size that will test;
B () measures the height of direct shear apparatus plane shear head 5, and make marks at the identical height and position place of rock structural face sample;
C () utilizes boom hoisting that the square fixed frame 1 of square for upper strata fixed frame 2 and lower floor to be positioned over the mark (b) outside sample from rock structural face sample top;
D (), according to the size of sample, selects corresponding fastening bolt 4 length;
E () is each passed through bolt hole 3 with fastening bolt 4 until the end of bolt contacts with circular rock structural face sample 7 outside surface and tightens;
F () is positioned over circular rock structural face sample in rock structural face direct shear apparatus together with the corollary apparatus of plane shear head, carry out direct shear test according to direct shear test code, obtains the shearing strength of circular rock structural face.
Further, described method is further comprising the steps of: (g), in order to obtain the shearing strength of multiple shear direction, fastening bolt is loosened, the position in rotational structure face is to the shear direction needing test, repeatedly repeat the shearing strength that step (b) to (f) just obtains the multiple shear direction of this rock structural face, obtain the anisotropic properties of this rock structural face.
Certain rock mass engineering project is in order to obtain the anisotropic properties of Shear Strength along Rock Stratum Plane, make circular configuration interview sample, but the cutting head of existing direct shear apparatus is plane, the shearing strength direct shear test of circular rock structural face sample cannot be carried out, therefore just need the direct shear apparatus plane shear head corollary apparatus adopting circular rock structural face sample.
To obtain the circular Shear Strength along Rock Stratum Plane that diameter is the different tests direction of 300mm, embodiment of the present utility model is:
A () selects the diameter that will test to be the rock structural face sample of 300mm.
B () measures the height of rock structural face direct shear apparatus plane shear head 5, and make marks at the identical height and position place of rock structural face sample 7.
C () utilizes boom hoisting that the square fixed frame 2 of square for upper strata fixed frame 1 and lower floor to be positioned over the mark that sample (b) does from rock structural face sample top.
D (), according to the size of sample, selects 8 corresponding fastening bolt length.
E () is each passed through corresponding bolt hole 3 with 8 fastening bolts 4 until the end of bolt contacts with sample outside surface and tightens.
F () to be positioned over circular configuration interview sample in direct shear apparatus together to the corollary apparatus of plane shear head just can carry out direct shear test according to corresponding direct shear test code, obtains the shearing strength of circular rock structural face.
G () will obtain the shearing strength of multiple shear direction, only bolt 4 need be loosened, the position in rotational structure face is to the shear direction needing test, repeatedly repeat the shearing strength that step (b) to (f) can obtain the multiple shear direction of this rock structural face, and then the anisotropic properties of this rock structural face can be analyzed.
Claims (2)
1. the rock structural face direct shear apparatus plane shear head corollary apparatus for circular rock structural face sample, it is characterized in that: described rock structural face direct shear apparatus comprises plane shear head and shears oil cylinder, the motion end of described shearing oil cylinder installs described plane shear head, described direct shear apparatus plane shear head corollary apparatus comprises square fixed frame and fastener, described square fixed frame comprises the square fixed frame of the square fixed frame of lower floor and upper strata, the square fixed frame of described lower floor is positioned at the top of the square fixed frame in upper strata and is mutually permanently connected, the inside of described upper strata fixed frame and lower floor's fixed frame is the station cavity for placing circular rock structural face sample to be tested, the centre position on four limits of the square fixed frame in described upper strata has bolt hole, and described fastener is fastening bolt, and described fastening bolt is supported on circular rock structural face sample to be tested through described bolt hole.
2., as claimed in claim 1 for the direct shear apparatus plane shear head corollary apparatus of circular rock structural face sample, it is characterized in that: four angles of the square fixed frame in described upper strata also have bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578197.2U CN204255749U (en) | 2014-10-08 | 2014-10-08 | For the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578197.2U CN204255749U (en) | 2014-10-08 | 2014-10-08 | For the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample |
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| Publication Number | Publication Date |
|---|---|
| CN204255749U true CN204255749U (en) | 2015-04-08 |
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|---|---|---|---|
| CN201420578197.2U Withdrawn - After Issue CN204255749U (en) | 2014-10-08 | 2014-10-08 | For the rock structural face direct shear apparatus plane shear head corollary apparatus of circular configuration interview sample |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359770A (en) * | 2014-10-08 | 2015-02-18 | 绍兴文理学院 | Supporting device of plane shearing head of rock structural surface direct shear device for circular structural surface samples and direct shear test method |
| CN105628431A (en) * | 2015-12-22 | 2016-06-01 | 中国地质大学（武汉） | Sampling and indoor in-situ testing method for soft intercalated layer undisturbed sample |
-
2014
- 2014-10-08 CN CN201420578197.2U patent/CN204255749U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359770A (en) * | 2014-10-08 | 2015-02-18 | 绍兴文理学院 | Supporting device of plane shearing head of rock structural surface direct shear device for circular structural surface samples and direct shear test method |
| CN105628431A (en) * | 2015-12-22 | 2016-06-01 | 中国地质大学（武汉） | Sampling and indoor in-situ testing method for soft intercalated layer undisturbed sample |
| CN105628431B (en) * | 2015-12-22 | 2018-08-07 | 中国地质大学（武汉） | A kind of sampling of weak intercalated layer undisturbed and indoor in-situ test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |