CN205483945U - Beded rock mass transverse isotropy osmotic coefficient testing arrangement - Google Patents
Beded rock mass transverse isotropy osmotic coefficient testing arrangement Download PDFInfo
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- CN205483945U CN205483945U CN201620270767.0U CN201620270767U CN205483945U CN 205483945 U CN205483945 U CN 205483945U CN 201620270767 U CN201620270767 U CN 201620270767U CN 205483945 U CN205483945 U CN 205483945U
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Abstract
The utility model provides a beded rock mass transverse isotropy osmotic coefficient testing arrangement, including pressure vessel, gas pitcher and airtight test container, the both sides of airtight test container are equipped with intake channel and level export respectively, both sides are equipped with perpendicular export from top to bottom, perpendicular export and horizontal exit linkage to recovery container, intake channel department is equipped with the 2nd control switch, the 2nd control switch's the upper reaches are equipped with first manometer, perpendicular exit is equipped with a control switch, horizontal exit is equipped with the 3rd control switch, recovery container's entrance is equipped with fourth control switch, fourth control switch's the upper reaches are equipped with the second manometer, the utility model discloses can realize the accurate test of beded rock mass isotropic permeability in the permeability test of gentle two the perpendicular orientations of the enterprising flowing water of same device and water and two kind gaseous media.
Description
Technical field
This utility model relates to the measuring technology of rock mass isotropism infiltration coefficient in Geotechnical Engineering.
Background technology
Beded rock mass refers to construct fairly simple sedimentary rock, rock stratum can become level or steep dip shape, the most parallel or less parallel between joint, rock stratum can be the rock of consolidation, can also be the deposit not consolidated, the deformation and failure characteristics of beded rock mass be mainly controlled by rock stratum combination and structural plane.What the rock mass in nature had a layer structure accounts for the 2/3 of land surface, 77.3% is accounted in China, the popularity of beded rock mass distribution causes running into substantial amounts of beded rock mass stable problem in engineering construction, these obvious layer structures, make the extremely complex stability how judging these rock mass of mechanical characteristics of beded rock mass, always one of hot issue of rock mechanics circle research.
The interface that joint divides as rock stratum, it reflects rock mass discontinuity in deposition process, although rock stratum may comprise crosscutting or unconformity joint, but joint is the most through structural plane generally, these structural planes are typically by the mineral composition in a certain rock stratum, the thickness of granule, the composition of cement is essentially identical, and present the feature aligned, these structures aligned, structure, micro-cracks etc. make beded rock mass show the character of transverse isotropy, this character also causes the infiltration coefficient of beded rock mass to present different permeabilitys along direction, joint and vertical joints direction, and the stability of engineering will be directly affected.
After Underground Engineering Excavation, owing to Stress relief can produce damage in country rock, these damages can cause coffer mechanics and hydraulic characteristic to change, and these changes can be by quantitative test, the permeability of such as water and gas.But at present device is tested for beded rock mass infiltration coefficient still to have and continue to use for rockmass, it is impossible to reflect the joint impact for Permeability of rock, the most just cannot reflect the degree of injury of rock mass accurately, objectively.
Utility model content
This utility model first has to solve the technical problem that and is to provide a kind of beded rock mass transverse isotropy device for testing permeability coefficient, horizontal and vertical directions and water and the testing permeability of gas two media can be carried out, it is achieved the infiltrative accurate test of beded rock mass transverse isotropy on same device.
This utility model solves above-mentioned technical problem the technical scheme is that beded rock mass transverse isotropy device for testing permeability coefficient, including the pressure vessel for storing liquid, for storing the gas tank of noble gas and for placing the hermetical testing container of beded rock mass sample, the side of described hermetical testing container is provided with intake channel, opposite side is provided with Horizontal Exit, the both sides up and down of described hermetical testing container are provided with vertical outlet, described vertical outlet and described Horizontal Exit and are all connected to returnable by unicom pipeline.
While using technique scheme, this utility model can also use or combine and use technical scheme further below:
Being provided with the second control switch that the general import for controlling hermetical testing container opens and closes at described intake channel, the described second upstream controlling switch is provided with the first Pressure gauge.
It is provided with at described vertical outlet for controlling the first control switch that vertical outlet opens and closes.
It is provided with at described Horizontal Exit for controlling the 3rd control switch that Horizontal Exit opens and closes.
The porch of described returnable is provided with for controlling the 4th control switch that returnable entrance opens and closes, and the described 4th upstream controlling switch is provided with the second Pressure gauge.
The exit of described pressure vessel is provided with for controlling the 5th control switch that pressure vessel outlet opens and closes, and described pressure vessel connects and has the 3rd Pressure gauge.
The exit of described gas tank is provided with for controlling the 6th control switch that gas tank outlet opens and closes, and described gas tank connects and has the 4th Pressure gauge.
The beneficial effects of the utility model are: this utility model provides a kind of beded rock mass transversely isotropic damage Tachistoscope apparatus and method, development characteristics for beded rock mass, it is provided with special control valve, the infiltration direction of water and gas can be controlled, test out infiltration coefficient vertically and horizontally respectively, and the testing permeability of water and gas can be realized on same device；This utility model controls gas or the flow direction of liquid by rational switch designs, obtain vertical joints and the infiltration coefficient of parallel cracks both direction, achieve the infiltrative accurate test of transverse isotropic rockmass, relatively conventional test methodologies can more accurately reflect the penetration signature of transverse isotropic rockmass, this device technique threshold is low simultaneously, simple to operate, workflow is clear, it is simple to building site uses.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of test device of the present utility model.
Fig. 2 is the infiltration coefficient test schematic diagram in vertical joints direction.
Fig. 3 is the infiltration coefficient test schematic diagram in bathroclase direction.
Detailed description of the invention
Referring to the drawings.
nullBeded rock mass transverse isotropy device for testing permeability coefficient of the present utility model includes the pressure vessel 1 for storing liquid、For storing the gas tank 2 of noble gas and for placing the hermetical testing container 3 of beded rock mass sample，Pressure vessel 1 internal memory water storage，Gas tank 2 is built with nitrogen，The side of hermetical testing container 3 is provided with intake channel 4，Intake channel 4 is connected with pressure vessel 1 and gas tank 2 respectively by unicom pipeline，The opposite side of hermetical testing container 3 is provided with Horizontal Exit 5，The both sides up and down of hermetical testing container are provided with vertical outlet 6，Two vertical outlets 6 and Horizontal Exit 5 are all connected to returnable 7 by unicom pipeline，The second control switch 8 that the general import for controlling hermetical testing container opens and closes it is provided with at intake channel 4，Second upstream controlling switch 8 is provided with the first Pressure gauge 9，It is each provided with at two vertical outlets 6 for controlling the first control switch 10 that this vertical outlet opens and closes，It is provided with at Horizontal Exit 5 for controlling the 3rd control switch 11 that Horizontal Exit opens and closes，The porch of returnable 7 is provided with for controlling the 4th control switch 12 that returnable entrance opens and closes，4th upstream controlling switch 12 is provided with the second Pressure gauge 13，The exit of pressure vessel 1 is provided with for controlling the 5th control switch 14 that pressure vessel outlet opens and closes，Connect on pressure vessel 1 and have the 3rd Pressure gauge 15 for monitoring pressure container 1 internal pressure，The exit of gas tank 2 is provided with for controlling the 6th control switch 16 that gas tank outlet opens and closes，Connect on gas tank 2 and have the 4th Pressure gauge 17 of the internal pressure for monitoring gas tank 2.
The specifically used method of test device of the present utility model is as follows:
One, assembling rock sample.
The rock sample 18 comprising bedding joint is put in hermetical testing container 3, rock sample 18 a size of 100mm × 50mm, the direction at the joint 19 of rock sample 18 is perpendicular to the Way in of hermetical testing container 3, hermetical testing container 3 is both vertically and horizontally being respectively arranged two import and export, is controlled on-off control by first and second respectively.
Two, the gas permeability test in vertical joints direction.
2.1) opening the 6th control switch, close the 5th control switch, osmotic pressure controls at 0.1 ~ 0.5MPa；
2.2) opening second, third and the 4th control switch, close the first control switch, gas flow direction is as shown in Figure 2；
2.3) being passed through gas, the testing time is about 5 minutes, records the first and second manometric readings；
2.4) utilize following formula (1) calculate vertical joints direction beded rock mass infiltration coefficient:
(1)
In formula, K is gas permeability coefficient, and A is rock sample cross-sectional area, and L is rock sample length, and P1, P2 are respectively No. 1 Pressure gauge and No. 2 pressure gauge readings, and P0 is atmospheric pressure,For the viscosity of gas, Q0 is the flow in the unit time.
Three, the gas permeability test in parallel cracks direction.
3.1) opening the 6th control switch, close the 5th control switch, osmotic pressure controls at 0.1 ~ 0.5MPa；
3.2) opening first, second and the 4th to control, close the 3rd control switch, gas flow direction is as shown in Figure 3；
3.3) being passed through gas, the testing time is about 5 minutes, records the first and second manometric readings；
3.4) formula (1) is utilized to calculate the beded rock mass infiltration coefficient in parallel cracks direction.
Four, the water permeability test in vertical joints direction
In this step, closing No. six and control switch, open No. five and control switch, remaining step is identical with step 2.
Five, the water permeability test in bathroclase direction
In this step, closing No. six and control switch, open No. five and control switch, remaining step is identical with step 3.
Claims (7)
1. beded rock mass transverse isotropy device for testing permeability coefficient, it is characterized in that: include the pressure vessel for storing liquid, for storing the gas tank of noble gas and for placing the hermetical testing container of beded rock mass sample, the side of described hermetical testing container is provided with intake channel, opposite side is provided with Horizontal Exit, the both sides up and down of described hermetical testing container are provided with vertical outlet, described vertical outlet and described Horizontal Exit and are all connected to returnable by unicom pipeline.
2. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterized in that: being provided with the second control switch that the general import for controlling hermetical testing container opens and closes at described intake channel, the described second upstream controlling switch is provided with the first Pressure gauge.
3. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterised in that: it is provided with at described vertical outlet for controlling the first control switch that vertical outlet opens and closes.
4. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterised in that: it is provided with at described Horizontal Exit for controlling the 3rd control switch that Horizontal Exit opens and closes.
5. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterized in that: the porch of described returnable is provided with for controlling the 4th control switch that returnable entrance opens and closes, and the described 4th upstream controlling switch is provided with the second Pressure gauge.
6. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterized in that: the exit of described pressure vessel is provided with for controlling the 5th control switch that pressure vessel outlet opens and closes, and described pressure vessel connects and has the 3rd Pressure gauge.
7. beded rock mass transverse isotropy device for testing permeability coefficient as claimed in claim 1, it is characterised in that: the exit of described gas tank is provided with for controlling the 6th control switch that gas tank outlet opens and closes, and described gas tank connects and has the 4th Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270767.0U CN205483945U (en) | 2016-03-31 | 2016-03-31 | Beded rock mass transverse isotropy osmotic coefficient testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620270767.0U CN205483945U (en) | 2016-03-31 | 2016-03-31 | Beded rock mass transverse isotropy osmotic coefficient testing arrangement |
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| CN205483945U true CN205483945U (en) | 2016-08-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651678A (en) * | 2016-03-31 | 2016-06-08 | 中国电建集团华东勘测设计研究院有限公司 | Device and method for testing transverse isotropic permeability coefficients of stratified rock masses |
| CN111337414A (en) * | 2020-04-17 | 2020-06-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Intelligent graded loading and variable-seepage-diameter ultra-large horizontal penetration test system |
-
2016
- 2016-03-31 CN CN201620270767.0U patent/CN205483945U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651678A (en) * | 2016-03-31 | 2016-06-08 | 中国电建集团华东勘测设计研究院有限公司 | Device and method for testing transverse isotropic permeability coefficients of stratified rock masses |
| CN105651678B (en) * | 2016-03-31 | 2018-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Beded rock mass transverse isotropy device for testing permeability coefficient and method |
| CN111337414A (en) * | 2020-04-17 | 2020-06-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Intelligent graded loading and variable-seepage-diameter ultra-large horizontal penetration test system |
| CN111337414B (en) * | 2020-04-17 | 2021-07-16 | 水利部交通运输部国家能源局南京水利科学研究院 | Intelligent graded loading and variable-seepage-diameter ultra-large horizontal penetration test system |
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