CN207717542U - A kind of rock structural face original position shear creep test device - Google Patents
A kind of rock structural face original position shear creep test device Download PDFInfo
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- CN207717542U CN207717542U CN201820061586.6U CN201820061586U CN207717542U CN 207717542 U CN207717542 U CN 207717542U CN 201820061586 U CN201820061586 U CN 201820061586U CN 207717542 U CN207717542 U CN 207717542U
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- loading system
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- original position
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Abstract
The utility model discloses a kind of rock structural face original position shear creep test device, include the tangential loading system to press to test specimen in situ and normal direction loading system, to the oil gear of tangential loading system and normal direction loading system fuel feeding, the measuring device that test piece deformation in situ is measured, the tangential loading system includes vertical the first steel plate, force-transmitting pole, the second steel plate, jack force-transmitting pole, hydraulic jack, power transmission case between rock crown and test specimen in situ, and the normal direction loading system includes the flat jack being set in test specimen in situ；The utility model can obtain the shear creep characteristic curve of live rock in situ, supplemented with existing achievement in research to the relatively small number of situation of the law-analysing of rock mass discontinuity rheological behavior, and use current divider, keep its simple in structure, convenient operating maintenance.
Description
Technical field
The utility model is related to rock mechanics experiment technology and apparatus fields, are cut in situ in particular to a kind of rock structural face
Cut creep test device.
Background technology
For rock mass as a kind of geologic body of complexity, rheological behavior is its important one of mechanical characteristic.The rheology of rock mass is existing
As being seen everywhere, such as：Weak structural face, siltized intercalation, fault belt in rock mass slope etc..Rock mass discontinuity is rock mass work
The complex dielectrics frequently encountered in journey, it has the characteristics that anisotropism, anisotropy and noncontinuity, intensity, deformation with
And the characteristics such as rheology will have a direct impact on the design of rock mass engineering project.Currently, having been obtained both at home and abroad to the research of rock rheological characteristics
Certain achievement, but in terms of the main research for still concentrating on rock material rheological behavior.The rheological behavior of rock mass discontinuity is different
In intact rock, it should be made of structural surface rheology and rock material rheology part, and the rheology of structural plane often controls
Rock mass rheology.Existing achievement in research is relatively fewer to the law-analysing of rock mass discontinuity rheological behavior.
Most of existing equipment is indoor set, and live rock shearing creep test device is less, therefore for very
It is a set of about rock original position shear creep test device it is necessary to design.
Invention content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of rock structural face original position shear creep test dresses
It sets, the shear creep characteristic curve of live rock in situ can be obtained, supplemented with existing achievement in research to rock mass discontinuity rheology
The relatively small number of situation of law-analysing of characteristic, and current divider is used, keep its simple in structure, convenient operating maintenance.
The utility model is in order to solve the above technical problems, used technical solution is：A kind of rock structural face is cut in situ
Creep test device is cut, includes the tangential loading system to press to test specimen in situ and normal direction loading system, to tangentially loading
The oil gear of system and normal direction loading system fuel feeding, it is described tangentially to add to the measuring device that test piece deformation in situ measures
Loading system includes vertical the first steel plate being set between rock crown and test specimen in situ, force-transmitting pole, the second steel plate, jack power transmission
Column, hydraulic jack, power transmission case；The normal direction loading system includes the flat jack being set in test specimen in situ.
Preferably, the oil gear includes oil pressure pump, and the oil pressure pump is connected by main oil pipe with current divider, described point
Stream device is connected in parallel to the first flowline and the second flowline, three main oil pipe, the first flowline, the second flowline pipelines
Diameter it is equal.
Preferably, first flowline is switched equipped with the first oil-control, first flowline one end and vacuum tank one end phase
Even, the vacuum tank other end is connect with first oil inlet pipe one end, and the first oil inlet pipe other end is connected with flat jack side,
The flat jack other side is connect with pressure-measuring pipe one end, and the pressure-measuring pipe other end is connected with first pressure gauge.
Preferably, second flowline is switched equipped with the second oil-control, and second flowline one end connects with accumulator tank one end
It connects, the accumulator tank other end is connect with second oil inlet pipe one end, and second pressure gauge is connected on second oil inlet pipe, described
The second oil inlet pipe other end is connected with hydraulic jack oil inlet.
Preferably, the measuring device includes the first shear-deformable measurement table, the second shear-deformable measurement table, the first normal direction
Ductilometer, the second normal deformation measurement table may be contained within the side close to structural plane on test specimen in situ.
The beneficial effects of the utility model：Traditional is special come the shear creep for studying rock mass by indoor shear creep test
Property exists apparent insufficient, and due to the influence of pilot rock mass dimensional effect, indoor small-size achievement in research can not be comprehensively and truly anti-
Reflect the true shear creep characteristic of Test in Situ.Compared with prior art, on the one hand, the utility model can obtain live in situ
The shear creep characteristic curve of rock, supplemented with existing achievement in research to the law-analysing of rock mass discontinuity rheological behavior relatively
Few situation；On the other hand, the utility model uses current divider, it is possible to reduce the complexity of experimental rig.The utility model knot
Structure is simple, convenient operating maintenance.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of rock structural face original position shear creep test device；
Fig. 2 is a kind of structural schematic diagram of current divider in rock structural face original position shear creep test device；
Fig. 3 is a kind of structural schematic diagram of power transmission case in rock structural face original position shear creep test device；
In figure, test specimen 1 in situ, hydraulic jack 2, the first steel plate 3, force-transmitting pole 4, the second steel plate 5, jack force-transmitting pole 6,
Power transmission case 7, oil pressure pump 8, main oil pipe 9, current divider 10, the first flowline 11, the first oil-control switch 12, vacuum tank 13, first into
Oil pipe 14, flat jack 15, pressure-measuring pipe 16, first pressure gauge 17, the second flowline 18, the second oil-control switch 19, accumulator tank 20,
Two pressure gauges 21, the first shear-deformable measurement table 22, the second shear-deformable measurement table 23, the first normal deformation measurement table 24,
Two normal deformation measurement tables 25, structural plane 26, the second oil inlet pipe 27, rock crown 28.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, a kind of rock structural face original position shear creep test device, including test specimen 1 in situ is carried out
The tangential loading system and normal direction loading system of pressure, to the oil gear of tangential loading system and normal direction loading system fuel feeding,
The measuring device measured is deformed to test specimen 1 in situ, the tangential loading system includes vertically being set to rock crown 28 and original
The first steel plate 3, force-transmitting pole 4, the second steel plate 5, jack force-transmitting pole 6, hydraulic jack 2, power transmission case 7 between the test specimen 1 of position；Institute
It includes the flat jack 15 being set in test specimen 1 in situ to state normal direction loading system.
Preferably, the oil gear includes oil pressure pump 8, and the oil pressure pump 8 is connected by main oil pipe 9 with current divider 10,
The current divider 10 is connected in parallel to the first flowline 11 and the second flowline 18, and the structure of the current divider is Y types, the master
Oil pipe 9, the first flowline 11, the diameter of second 18 3 pipelines of flowline are equal, this structure can reduce the quantity of oil pressure pump,
So that overall structure is more simple, field test is facilitated to use.
Preferably, first flowline 11 is equipped with the first oil-control switch 12,11 one end of the first flowline and vacuum tank
13 one end be connected, 13 other end of the vacuum tank is connect with 14 one end of the first oil inlet pipe, 14 other end of the first oil inlet pipe and
15 side of flat jack is connected, and 15 other side of the flat jack is connect with 16 one end of pressure-measuring pipe, 16 other end of the pressure-measuring pipe and the
One pressure gauge 17 is connected；To ensure to note the confined pressure steady in normal direction loading procedure, first oil inlet pipe 14 and pressure-measuring pipe 16 are tight
15 both sides of flat jack are pasted, the flat jack 15 is located inside test specimen 1 in situ on the right side, top and bottom distance original position test specimen 1
The distance at edge is equal.
Preferably, second flowline 18 is equipped with the second oil-control switch 19,18 one end of the second flowline and accumulator tank
20 one end connect, and 20 other end of the accumulator tank connect with 27 one end of the second oil inlet pipe, is connected on second oil inlet pipe 27
Second pressure gauge 21,27 other end of the second oil inlet pipe are connected with 2 oil inlet of hydraulic jack.
Preferably, the measuring device includes the first shear-deformable measurement table 22, the second shear-deformable measurement table 23, first
Normal deformation measurement table 24, the second normal deformation measurement table 25 may be contained on test specimen 1 in situ close to the one of structural plane 26
Side；The first shear-deformable measurement table, 22 and second shear-deformable measurement table 23, the first normal deformation measurement table 24 and second
Distance of the normal deformation measurement table 25 apart from shear structure face 26 is 5cm.
The present embodiment operation principle is as follows：As shown in figure 3, the structure of power transmission case 7 is as follows, bottom side length=1/2 (top margin is long),
Bottom edge is wide=and 1/2（Bottom edge is wide）, it is highly H.
Start 8 power supply of oil pressure pump, close the second oil-control switch 19, opens the first oil-control switch 12.Confining pressure is set, it is right first
Test specimen 1 in situ carries out normal direction load, when the reading of first pressure gauge 17 reaches target confining pressure, stops load immediately, and close
First oil-control switch 12.
The second oil-control switch 19 is opened, oil pressure pump 8 is again started up, generates lasting shearing force, test specimen 1 in situ is cut
Cut creep effect.
Every half an hour pair the first shear-deformable measurement table 22 and the second shear-deformable measurement table 23, the first normal deformation is surveyed
Scale 24 and the second normal deformation measurement table 25 are read respectively, are calculated separately average value and are recorded, with time t for horizontal seat
Mark draws rock sample original position shear creep characteristic curve using shear deformation and normal deformation amount as abscissa respectively：.
Set different confining pressures, repeat above step, obtain under different confining pressures rock sample original position shear creep characteristic curve and its
Physical parameter.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the features in the embodiments and the embodiments of the present application in the absence of conflict, mutually can be combined arbitrarily.This practicality is new
Technical characteristic in the technical solution that the protection domain of type should be recorded with claim, including the technical solution of claim record
Equivalents are protection domain.Equivalent replacement i.e. within this range is improved, also the scope of protection of the utility model it
It is interior.
Claims (5)
1. a kind of rock structural face original position shear creep test device, including to test specimen in situ（1）The tangential load to press
System and normal direction loading system, to the oil gear of tangential loading system and normal direction loading system fuel feeding, to test specimen in situ（1）Become
The measuring device that shape measures, it is characterised in that：The tangential loading system includes vertically being set to rock crown（28）And original
Position test specimen（1）Between the first steel plate（3）, force-transmitting pole（4）, the second steel plate（5）, jack force-transmitting pole（6）, hydraulic jack
（2）, power transmission case（7）；The normal direction loading system includes being set to test specimen in situ（1）Interior flat jack（15）.
2. a kind of rock structural face original position shear creep test device according to claim 1, it is characterised in that：The oil
Pressure device includes oil pressure pump（8）, the oil pressure pump（8）Pass through main oil pipe（9）With current divider（10）It is connected, the current divider（10）
It is connected in parallel to the first flowline（11）With the second flowline（18）, the main oil pipe（9）, the first flowline（11）, second go out
Oil pipe（18）The diameter of three pipelines is equal.
3. a kind of rock structural face original position shear creep test device according to claim 2, it is characterised in that：Described
One flowline（11）The first oil-control is equipped with to switch（12）, the first flowline（11）One end and vacuum tank（13）One end is connected, institute
State vacuum tank（13）The other end and the first oil inlet pipe（14）One end connects, first oil inlet pipe（14）The other end and flat jack
（15）Side is connected, the flat jack（15）The other side and pressure-measuring pipe（16）One end connects, the pressure-measuring pipe（16）The other end with
First pressure gauge（17）It is connected.
4. a kind of rock structural face original position shear creep test device according to claim 2, it is characterised in that：Described
Two flowlines（18）The second oil-control is equipped with to switch（19）, the second flowline（18）One end and accumulator tank（20）One end connects, institute
State accumulator tank（20）The other end and the second oil inlet pipe（27）One end connects, second oil inlet pipe（27）On be connected with second pressure
Table（21）, second oil inlet pipe（27）The other end and hydraulic jack（2）Oil inlet is connected.
5. a kind of rock structural face original position shear creep test device according to claim 1, it is characterised in that：The survey
It includes the first shear-deformable measurement table to measure device（22）, the second shear-deformable measurement table（23）, the first normal deformation measurement table
（24）, the second normal deformation measurement table（25）, may be contained within test specimen in situ（1）Upper close structural plane（26）Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061586.6U CN207717542U (en) | 2018-01-15 | 2018-01-15 | A kind of rock structural face original position shear creep test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820061586.6U CN207717542U (en) | 2018-01-15 | 2018-01-15 | A kind of rock structural face original position shear creep test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207717542U true CN207717542U (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820061586.6U Expired - Fee Related CN207717542U (en) | 2018-01-15 | 2018-01-15 | A kind of rock structural face original position shear creep test device |
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| CN (1) | CN207717542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916688A (en) * | 2021-12-15 | 2022-01-11 | 西南石油大学 | Novel hydraulic loading system for field in-situ shearing experiment |
-
2018
- 2018-01-15 CN CN201820061586.6U patent/CN207717542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916688A (en) * | 2021-12-15 | 2022-01-11 | 西南石油大学 | Novel hydraulic loading system for field in-situ shearing experiment |
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| Date | Code | Title | Description |
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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: 20180810 Termination date: 20190115 |