CN206772713U - A kind of device for determining bedded rock anisotropy deformation parameter - Google Patents
A kind of device for determining bedded rock anisotropy deformation parameter Download PDFInfo
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- CN206772713U CN206772713U CN201720393004.XU CN201720393004U CN206772713U CN 206772713 U CN206772713 U CN 206772713U CN 201720393004 U CN201720393004 U CN 201720393004U CN 206772713 U CN206772713 U CN 206772713U
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- cushion block
- balancing gate
- gate pit
- steel cushion
- rock
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Abstract
The utility model discloses a kind of device for determining bedded rock anisotropy deformation parameter, including balancing gate pit, the bottom of balancing gate pit is provided with base, the second steel cushion block is provided with base, opening of the axially loaded jack at the top of balancing gate pit, the bottom of axially loaded jack is provided with polyfluortetraethylene plate, polyfluortetraethylene plate abuts with the first steel cushion block, accompany bedded rock test specimen between first steel cushion block and the second steel cushion block, sealing ring is provided between the inwall of the opening at the top of axially loaded jack and balancing gate pit.Sample is less needed for the utility model, and 6 variables of control stratiform mechanical properties of rock can be obtained only with a bedded rock experiment；Flow is simple, and the deformation parameter of rock can be once being obtained in experiment；The isotropism in-plane of bedded rock test specimen can be directly determined, without being estimated before the test.
Description
Technical field
Rock mechanics technical field of measurement and test is the utility model is related to, is specially a kind of measure bedded rock anisotropy deformation
The device of parameter.
Background technology
Epidermic most rock mass, it can be formed under the conditions of very long earth history, in rock mass various primary or secondary
Structural plane, such as stratification, joint, piece reason, fold, plane of weakness, these development have in orientation rule distribution advantage aspect rock
Body can be considered the beded rock mass of broad sense.Influenceed by angle of bedding, the deformation of beded rock mass and intensity are shown significantly respectively to different
Property feature, great difficulty is brought to actual engineering design and beded rock mass estimation of stability.
The research contents that the research early stage of bedded rock is main is how to determine the elastic parameter of bedded rock, in order to solve
This problem, multiple hypotheses theory are suggested, mainly had：Stratiform orthotropic solid, orthotropy theory, stratiform are just
Friendship medium equivalent model etc., wherein coverage are assumed to be equivalent homogeneous transversely isotropic medium.When using this theory
Under it is assumed that, the Elasticity characteristic of rock is by six Variable Controls：The normal vector of isotropism plane（Or its occurrence）, five bullets
Property mechanics parameter：The Poisson's ratio, vertical each of the modulus of elasticity of parallel transverse isotropy plane, parallel transverse isotropy plane
Poisson's ratio, the modulus of shearing of vertical isotropism plane of modulus of elasticity, vertical isotropism plane to same sex plane.
In general, in order to determine six variables more than in rock, the sillar of field acquisition is carried out by different azimuth
Cutting, the small sillar at different aspects inclination angle is formed, then core boring sampling, finally cuts, polishes, and obtains final rock sample.And
The rock sample at these different aspects inclination angles is carried out into uniaxial compression test respectively, ultimate analysis result of the test obtains the above six
Variable.Because research process need to take the test specimen at each different aspects inclination angle and carry out test of many times, such as text（Liu Yunsi,
Deng experimental study [J] the Central South University journal 2013,44 of transverse isotropies Rock Elastic Parameters and compression strength
(8): 3398-3405.）In in order to determine the elastic parameter of slate, carried out 38 experiments at 7 different interlayer inclination angles, text
（Huang Qing, wait the indoor uniaxial compression test of stratified anisotropy rock mass to analyze institute of [J] Changjiang Academy of sciences and report 33 (5):
58-63.）In in order to determine the elastic parameter of limestone, carried out 42 experiments at 7 different interlayer inclination angles.So that measure stratiform
Rock deformation parametric procedure is complicated, and cost remains high, and serious constrains engineer applied.
Utility model content
The purpose of this utility model is to be in view of the above-mentioned problems existing in the prior art, there is provided one kind measure bedded rock
The device of anisotropy deformation parameter.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions：
A kind of device for determining bedded rock anisotropy deformation parameter, including balancing gate pit, the bottom of balancing gate pit are provided with
Base, is provided with the second steel cushion block on base, and the top surface of base is provided with ball recess, the bottom surface of the second steel cushion block be with it is spherical
The sphere of groove adaptation, opening of the axially loaded jack at the top of balancing gate pit, the bottom of axially loaded jack is provided with
Polyfluortetraethylene plate, polyfluortetraethylene plate abut with the first steel cushion block, are accompanied between the first steel cushion block and the second steel cushion block
Bedded rock test specimen, sealing ring is provided between the inwall of the opening at the top of axially loaded jack and balancing gate pit, balancing gate pit
Lower sides offer hydraulic oil inlet, and the upper portion side wall of balancing gate pit offers balancing gate pit's steam vent.
Wrapped up as described above between bedded rock test specimen top and the first steel cushion block by annular rubber mantle；Bedded rock
Wrapped up between stone test specimen bottom and the second steel cushion block by annular rubber mantle.
The utility model has the advantages that relative to existing experimental technique：
（1）Required sample is less, can obtain control stratiform mechanical properties of rock only with a bedded rock experiment
6 variables；
（2）Flow is simple, without carrying out test of many times, it is only necessary to for single sample, carries out hydrostatic pressing loading and side successively
Axial compression-loaded experiment under press strip part.The deformation parameter of rock can be once being obtained in experiment.
（3）During experiment, the isotropism in-plane of bedded rock test specimen will be directly determined, without before the test
Estimated.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 be axially loaded preceding stratiform rock sample top without lateral sliding when configuration state schematic diagram；
Fig. 3 be it is axially loaded after bedded rock test specimen top without lateral sliding when configuration state schematic diagram.
Wherein：1- slip axial loading devices；2- sealing rings；3- annular rubber mantles；4- balancing gate pits；Answer 5- sides
Become flower；6- bedded rock test specimens；The spherical bases of 7-；701- ball recess；8- the second steel cushion blocks；9- hydraulic oil inlets；10- hydrostatic
Pressure；11- balancing gate pits steam vent；The axially loaded jack of 101-；102- polyfluortetraethylene plates；103- the first steel cushion blocks；104-
Axial compressive force.
Embodiment
The technical scheme of utility model is further described below in conjunction with accompanying drawing and embodiment.
Embodiment：
As shown in figure 1, a kind of device for determining bedded rock anisotropy deformation parameter, including balancing gate pit 4, balancing gate pit 4
Bottom be provided with base 7, be provided with the second steel cushion block 8 on base 7, the top surface of base 7 is provided with ball recess 701, second
The bottom surface of steel cushion block 8 is the sphere being adapted to ball recess 701, and axially loaded jack 101 is opened through the top of balancing gate pit 4
Mouthful, the bottom of axially loaded jack 101 is provided with polyfluortetraethylene plate 102, the steel cushion block of polyfluortetraethylene plate 102 and first
103 are abutted, and bedded rock test specimen 6, axially loaded jack 101 are accompanied between the first steel cushion block 103 and the second steel cushion block 8
Sealing ring 2 is provided between the inwall of the opening at the top of balancing gate pit 4, the lower sides of balancing gate pit 4 offer hydraulic oil inlet
9, the upper portion side wall of balancing gate pit 4 offers balancing gate pit's steam vent 11.
Wrapped up between the top of bedded rock test specimen 6 as described above and the first steel cushion block 103 by annular rubber mantle 3；
Wrapped up between the bottom of bedded rock test specimen 6 and the second steel cushion block 8 by annular rubber mantle 3.
As a kind of preferred scheme, the size of bedded rock test specimen 6 is diameter 50mm, high 100mm international standard test specimen,
The inside diameter of balancing gate pit is the diameter of 2 times of bedded rock test specimens 6.
, the top surface of base 7 is provided with ball recess 701, and the bottom surface of the second steel cushion block 8 is what is be adapted to ball recess 701
Sphere, certain error of centralization can be accommodated.The lower sides of balancing gate pit 4 offer hydraulic oil inlet 9, the top of balancing gate pit 4
Side wall offers balancing gate pit's steam vent 11, to introduce hydraulic oil with pressure from outside oil pump, completes hydrostatic pressing loading.
Wrapped between the top of bedded rock test specimen 6 and the first steel cushion block 103 by annular rubber mantle 3；Bedded rock
Wrapped between the bottom of stone test specimen 6 and the second steel cushion block 8 by annular rubber mantle 3, the effect of annular rubber mantle 3 is to protect
The space that card hydraulic oil does not enter between the second steel cushion block 8 or the first steel cushion block 103 and bedded rock test specimen 6.Bedded rock tries
The sidepiece of part 6 pastes two groups of strain rosettes 5, and every group of strain rosette 5 includes 3 foil gauges, altogether six foil gauges.As a kind of preferred side
Case, two groups of strain rosettes are with the stickup substantially symmetrical about its central axis of bedded rock test specimen 6.
Slip axial loading device 1 includes axially loaded jack 101, the steel cushion block of polyfluortetraethylene plate 102 and first
103.In the case where the axial compressive force 104 that axially loaded jack 101 applies acts on, or the hydrostatic pressure 10 of hydraulic oil with pressure effect is made
Under, non-axis symmetry deformation will occur for bedded rock mechanics test specimen 6（As shown in Fig. 2, Fig. 3 contrast）, polyfluortetraethylene plate 102 makees
For the extremely low material of frictional force, lateral sliding occurs for the axially loaded steel cushion block 103 of jack 101 and first under its effect, but
Do not rotate, ensure that the principal axis of strain is coaxial with isotropism plane under the deformation state of bedded rock test specimen 6.
It is described above, only it is preferred embodiment of the present utility model, not structure of the present utility model is done any
Formal limitation.Every any simple modification made according to the technical essence of the utility model to above example, equivalent variations
With modification, in the range of still falling within the technical solution of the utility model.
Claims (2)
1. a kind of device for determining bedded rock anisotropy deformation parameter, including balancing gate pit（4）, it is characterised in that balancing gate pit
（4）Bottom be provided with base（7）, base（7）On be provided with the second steel cushion block（8）, base（7）Top surface be provided with spherical female
Groove（701）, the second steel cushion block（8）Bottom surface be and ball recess（701）The sphere of adaptation, axially loaded jack（101）Pass through
Wear balancing gate pit（4）The opening at top, axially loaded jack（101）Bottom be provided with polyfluortetraethylene plate（102）, polytetrafluoro
Vinyl plate（102）With the first steel cushion block（103）Abut, the first steel cushion block（103）With the second steel cushion block（8）Between accompany layer
Shape rock sample（6）, axially loaded jack（101）With balancing gate pit（4）Sealing ring is provided between the inwall of the opening at top
（2）, balancing gate pit（4）Lower sides offer hydraulic oil inlet（9）, balancing gate pit（4）Upper portion side wall offer balancing gate pit row
Stomata（11）.
A kind of 2. device for determining bedded rock anisotropy deformation parameter according to claim 1, it is characterised in that institute
The bedded rock test specimen stated（6）Top and the first steel cushion block（103）Between pass through annular rubber mantle（3）Parcel；Bedded rock
Test specimen（6）Bottom and the second steel cushion block（8）Between pass through annular rubber mantle（3）Parcel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720393004.XU CN206772713U (en) | 2017-04-14 | 2017-04-14 | A kind of device for determining bedded rock anisotropy deformation parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720393004.XU CN206772713U (en) | 2017-04-14 | 2017-04-14 | A kind of device for determining bedded rock anisotropy deformation parameter |
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| Publication Number | Publication Date |
|---|---|
| CN206772713U true CN206772713U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720393004.XU Expired - Fee Related CN206772713U (en) | 2017-04-14 | 2017-04-14 | A kind of device for determining bedded rock anisotropy deformation parameter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535113A (en) * | 2018-03-25 | 2018-09-14 | 石家庄铁道大学 | A kind of horizontal layered rock mass deformation parametric synthesis determines method |
| CN109696399A (en) * | 2019-01-28 | 2019-04-30 | 华南理工大学 | It is a kind of for testing the experimental provision of bituminous pavement interlayer adhesive property |
-
2017
- 2017-04-14 CN CN201720393004.XU patent/CN206772713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535113A (en) * | 2018-03-25 | 2018-09-14 | 石家庄铁道大学 | A kind of horizontal layered rock mass deformation parametric synthesis determines method |
| CN108535113B (en) * | 2018-03-25 | 2020-11-13 | 石家庄铁道大学 | Comprehensive determination method for deformation parameters of horizontal stratified rock mass |
| CN109696399A (en) * | 2019-01-28 | 2019-04-30 | 华南理工大学 | It is a kind of for testing the experimental provision of bituminous pavement interlayer adhesive property |
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| GR01 | Patent grant | ||
| 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: 20171219 |