CN103063518A - Experimental system for coupling of seepage and stress in rock tensile state - Google Patents
Experimental system for coupling of seepage and stress in rock tensile state Download PDFInfo
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- CN103063518A CN103063518A CN2012105910254A CN201210591025A CN103063518A CN 103063518 A CN103063518 A CN 103063518A CN 2012105910254 A CN2012105910254 A CN 2012105910254A CN 201210591025 A CN201210591025 A CN 201210591025A CN 103063518 A CN103063518 A CN 103063518A
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Abstract
The invention discloses an experimental system for coupling of seepage and stress in a rock tensile state. The system comprises an oil pressure chamber, a tension device and a computer, wherein a top cover and a bottom cover are arranged on the oil pressure chamber, wherein positions of the bottom cover and the oil pressure chamber are fixed; the top cover can slide relative to the oil pressure chamber; the top cover is also used for clamping the upper end of a test sample as a test sample upper end cover; the bottom cover is used for clamping the lower end of the test sample as a test sample lower end cover and forms a sealed seepage chamber together with the lower end of the test sample; the sealed seepage chamber is communicated with a water inlet pipe; the top cover is communicated with a water outlet pipe; the oil pressure chamber is communicated with an oil pipe; the tension device is connected with the top cover; and the computer is used for controlling an oil pump, a water inlet pump and a water outlet pump as well as a flowmeter and extracting data information. The experimental system disclosed by the invention has the advantages as follows: variation process and rule of rocks under a tensile stress and seepage coupling effect can be studied; a seepage and stress coupling mathematical model capable of describing stress, strain and seepage coefficient evolution rules of the rocks is established; and a seepage failure mechanism of a project is studied from a microscopic angle.
Description
Technical field
The present invention relates to the pilot system under a kind of complex stress seepage flow condition, relate in particular to a kind of rock and be in stress seepage coupling test system under the extended state.
Background technology
In Geotechnical Engineering design and construction, the tensile strength of rock is an important mechanical index.Rock mass often is in complicated stress state in the Practical Project, and some positions are in compressing stress state, and some places then are in the drawing stress state, because the tensile strength of rock is far below compressive strength, so country rock always begins from the tension district to destroy.Therefore, correctly carry out country rock body stress state region and divide, that namely destroys the explosive area determines it is the key that Stability Analysis of The Surrounding Rock is estimated, and Tensile Strength of Rock is one of basic data of determining in the surrounding rock failure of engineering district.
The perviousness of rock material refers under fluid or gas effect, the ability of the hole of rock and crack infiltration, and the physical significance of infiltration coefficient is that rock material is to the penetrating power of certain particular fluid.Rock is in its very long forming process, and various defectives are rich in inside, comprises macroscopical discontinuous faces such as micro-crack, hole and joint fissure, and their exist for underground water or gas permeation provide and store and the place of migration.Osmosis acts in the rock material with the form of stress usually, affect the Stress Field Distribution of rock with confined pressure and axial compression, meanwhile, the change of stress field can cause again the material crack that further distortion occurs, change its permeance property and then affect infiltration coefficient, therefore, seepage field changes along with the infiltration coefficient of material and redistributes, and this influencing each other namely is called the seepage stress coupling.
A large amount of constructions along with the great rock mechanics engineering of China, cause the distortion of rock material in the mobile equilibrium system under the seepage stress coupling, damage and failure and stability become the hot issue of engineering discipline, but the key that addresses these problems is to obtain change procedure and the rule of infiltration coefficient under the coupling, set up out the seepage flow one stress coupling mathematical model that can reflect ess-strain and infiltration coefficient Evolution, from fine sight angle seepage failure mechanism and the long-time stability of engineering are studied, for the engineering safety exploitation, reduce disaster and have important practical significance.
Consult on the basis of data at home and abroad, original a series of correlation test device is as in the documents such as Chinese patent CN102607950 and Chinese patent 200710040457.5, although involved the seepage stress coupling, but these couplings are all carried out under confined pressure effect or shearing seepage effect, do not consider the situation of stretching.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the pilot system of the coupling of seepage stress under a kind of rock extended state, existing seepage stress Coupling Research is replenished and perfect.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
The pilot system of seepage stress coupling comprises hydraulic chamber, puller system and computing machine under a kind of rock extended state; Be provided with top cover and the bottom that can seal hydraulic chamber in the described hydraulic chamber, wherein bottom and hydraulic chamber holding position are fixed, top cover relatively hydraulic chamber slides, described top cover simultaneously as sample upper end cover cap, clamp the sample upper end, described bottom simultaneously as sample lower end cover cap, clamp the sample lower end and form sealing with the sample lower end and infiltrate the chamber; Described sealing is infiltrated the chamber and is communicated with water inlet pipe, and water inlet pipe controls by intake pump, and described top cover is communicated with rising pipe, is provided with flowmeter at rising pipe, and rising pipe controls by going out water pump, and described hydraulic chamber is communicated with oil pipe, and oil pipe passes through oil pump control; The stiff end of described puller system and hydraulic chamber holding position are fixed, and pulling force motion end and top cover holding position are fixed; Described computing machine is to oil pump, intake pump and go out water pump and data message is controlled and extracted to flowmeter.
Said apparatus in use, by collection and the calculating of computing machine to related data, can conveniently obtain confined pressure, hydraulic pressure, tension and apply situation; Simultaneously, the design of rising pipe can be opened or close as required, with the different operating modes of simulation draining and not draining.
Preferably, described puller system comprises suitable screw rod and electronic nut, described electronic nut only carries out the rotation take the central shaft of screw rod as axis, and described screw rod drives the relative hydraulic chamber of upper end cover and slides, and data message be controlled and be extracted to described computing machine can to electronic nut; Control by the information such as speed to electronic nut, be convenient to realize to sample etc. speed load the stretcher strain that can directly determine sample by revolution and the angle of electronic nut.
Preferably, also comprise the pulling force sensor that pulling force that the pulling force motion end to puller system is subject to detects, described computing machine gathers the data message of pulling force sensor.
Preferably, described sample is dumbbell shape, and is enclosed with rubber case in the outside of sample, so that sample is fixing.
Preferably, also comprise support, described support comprises bottom plate and upper mounted plate, fixes by column between described bottom plate and the upper mounted plate; Described hydraulic chamber is fixed on the bottom plate, and the stiff end of described puller system is fixed on the upper mounted plate.
Preferably, the material of described support is preferably the larger material of rigidity, such as alloy steel, with the error that reduces to produce because of the support force distortion.
Beneficial effect: the pilot system of seepage stress coupling under the rock extended state provided by the invention, can change procedure and the rule of study of rocks under tension and seepage flow coupling, foundation can be described the seepage stress mathematical model coupling of rock stress, strain and infiltration coefficient Evolution, from fine sight angle the seepage failure mechanism of engineering is studied, for the engineering safety exploitation, reduce disaster and have important practical significance; And system architecture of the present invention is simple, cost is lower, be easy to realization.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic diagram of rock sample among the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Be the pilot system of seepage stress coupling under a kind of rock extended state as shown in Figure 1 and Figure 2, comprise support, hydraulic chamber 12, puller system and computing machine 12; Described support comprises bottom plate 16 and upper mounted plate 17, and is fixing by column 7 between described bottom plate 16 and the upper mounted plate 17; Described hydraulic chamber 12 is fixed on the bottom plate 16, and the stiff end of described puller system is fixed on the upper mounted plate 17; Described bottom plate 16, upper mounted plate 17 and column 7 all adopt the alloy steel material.
Be provided with top cover 13 and the bottom 14 that can seal hydraulic chamber 12 in the described hydraulic chamber 12, wherein bottom 14 is fixed with hydraulic chamber 12 holding positions, top cover 13 relatively hydraulic chamber 12 slides, described top cover 13 simultaneously as sample 1 upper end cover cap, clamp sample 1 upper end, described bottom 14 simultaneously as sample 1 lower end cover cap, clamp sample 1 lower end and form sealing with sample 1 lower end and infiltrate the chamber; Described sealing is infiltrated the chamber and is communicated with water inlet pipe 10, and water inlet pipe 10 passes through intake pump 9 and control, and described top cover 13 is communicated with rising pipe 2, be provided with flowmeter 3 at rising pipe 2, and rising pipe 2 is by going out water pump 8 controls, and described hydraulic chamber 12 is communicated with oil pipe, and oil pipe is by oil pump 15 controls.
Described puller system comprises suitable screw rod 5 and electronic nut 6, and described electronic nut 6 only carries out the rotation take the central shaft of screw rod 5 as axis, and described screw rod 5 drives 15 slips of upper end covers 13 relative hydraulic chamber; Be provided with the pulling force sensor 4 that its pulling force that is subject to is monitored on the described screw rod 5.
11 pairs of pulling force sensors 4 of described computing machine, electronic nut 6, flowmeter 3, go out water pump 8, intake pump 9 and oil pump 15 and control and extract data message.Described sample 1 is dumbbell shape, and is enclosed with rubber case 18 in the outside of sample 1.
The course of work of said apparatus is as follows:
(1) according to testing in advance design proposal, preparation dumbbell shape sample 1 is fixed on sample with sample and is fixed between top cover 13 and the bottom 14;
(2) pass through confined pressure, water inlet pipe 10 pressure, the switch of rising pipe 2 and the loading speed of hydraulic pressure and electronic nut 6 that computing machine 11 is set hydraulic chamber 12;
(3) by beginning test after the computing machine 11 setting parameters, the situation that power is lax or reduce occurs when pulling force sensor 4 detects screw rod 5, illustrate that sample 1 has begun to destroy;
(4) put down in writing and calculate by parameters and variation thereof in 11 pairs of loading procedures of computing machine, obtain the relation between stress-strain-water pressure three, finish test.
The above only is preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the pilot system of seepage stress coupling under the rock extended state is characterized in that: comprise hydraulic chamber (12), puller system and computing machine (11); Be provided with top cover (13) and the bottom (14) that can seal hydraulic chamber (12) in the described hydraulic chamber (12), wherein bottom (14) is fixed with hydraulic chamber (12) holding position, top cover (13) relatively hydraulic chamber (12) slides, described top cover (13) simultaneously as sample (1) upper end cover cap, clamp sample (1) upper end, described bottom (14) simultaneously as sample (1) lower end cover cap, clamp sample (1) lower end and form sealing with sample (1) lower end and infiltrate the chamber; Described sealing is infiltrated the chamber and is communicated with water inlet pipe (10), and water inlet pipe (10) is by intake pump (9) control, described top cover (13) is communicated with rising pipe (2), be provided with flowmeter (3) at rising pipe (2), and rising pipe (2) is by going out water pump (8) control, described hydraulic chamber (12) is communicated with oil pipe, and oil pipe is by oil pump (15) control; The stiff end of described puller system and hydraulic chamber (12) are fixed the holding position, and pulling force motion end and top cover (13) holding position is fixed; Described computing machine (11) is to oil pump (15), intake pump (9) and go out water pump (8) and data message is controlled and extracted to flowmeter (3).
2. the pilot system that seepage stress is coupled under the rock extended state according to claim 1, it is characterized in that: described puller system comprises suitable screw rod (5) and electronic nut (6), described electronic nut (6) only carries out the rotation take the central shaft of screw rod (5) as axis, described screw rod (5) drives relatively hydraulic chamber (12) slip of top cover (13), and data message is controlled and extracted to described computing machine (11) to electronic nut (6).
3. the pilot system that seepage stress is coupled under the rock extended state according to claim 1, it is characterized in that: also comprise the pulling force sensor (4) that pulling force that the pulling force motion end to puller system is subject to detects, described computing machine (11) gathers the data message of pulling force sensor (4).
4. the pilot system that seepage stress is coupled under the rock extended state according to claim 1, it is characterized in that: described sample (1) is dumbbell shape, and is enclosed with rubber case (18) in the outside of sample (1).
5. the pilot system that seepage stress is coupled under the rock extended state according to claim 1, it is characterized in that: also comprise support, described support comprises bottom plate (16) and upper mounted plate (17), and is fixing by column (7) between described bottom plate (16) and the upper mounted plate (17); Described hydraulic chamber (12) is fixed on the bottom plate (16), and the stiff end of described puller system is fixed on the upper mounted plate (17).
6. the pilot system that seepage stress is coupled under the rock extended state according to claim 1, it is characterized in that: the material of described support is alloy steel.
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| CN2012105910254A CN103063518A (en) | 2012-12-31 | 2012-12-31 | Experimental system for coupling of seepage and stress in rock tensile state |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442718A (en) * | 2015-08-04 | 2017-02-22 | 中国石油化工股份有限公司 | Rock sound wave property testing apparatus |
| CN106568622A (en) * | 2016-10-12 | 2017-04-19 | 河海大学 | Test device for positive pressure water saturation of high strength rock sample and use method |
| CN106969992A (en) * | 2017-04-28 | 2017-07-21 | 榆林学院 | The test apparatus of solid dielectric deterioration destruction under a kind of simulation fluviation |
| CN108225904A (en) * | 2018-04-11 | 2018-06-29 | 四川大学 | The fixture of rocks in direct tension experiment and the test method based on the fixture |
| CN108519317A (en) * | 2018-04-24 | 2018-09-11 | 钦州学院 | Rock stress-seepage coupling test device under uniaxial direct tensile load |
| CN109163965A (en) * | 2018-09-26 | 2019-01-08 | 姜军 | A kind of chain strength detection device of chain-bucket dredge boat |
| CN109443885A (en) * | 2019-01-08 | 2019-03-08 | 中南大学 | A kind of rock triaxial extension test test specimen group device and its manufacturing method |
| CN110879129A (en) * | 2019-11-05 | 2020-03-13 | 昆明理工大学 | Device for testing influence of pipeline deformation on liquid flow in closed-loop pressure system |
| CN113504119A (en) * | 2021-08-13 | 2021-10-15 | 大连海事大学 | Rock seepage device under stretching action and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762003A (en) * | 1987-05-01 | 1988-08-09 | The United States Department Of Energy | Material test machine for tension-compression tests at high temperature |
| US5911164A (en) * | 1998-02-10 | 1999-06-08 | Mcrae; John L. | Compaction and pavement design testing machine and method for testing flexible pavement materials |
| CN101271103A (en) * | 2008-05-16 | 2008-09-24 | 东南大学 | Experimental device for concrete multifactor permanent stability under co-action of pulling stress and surroundings |
| CN102175529A (en) * | 2011-01-26 | 2011-09-07 | 徐州师范大学 | Creep permeation full-distance coupling test system for broken rock sample |
| CN102288485A (en) * | 2011-05-12 | 2011-12-21 | 河海大学 | Large-sized fully graded concrete axial-tension tester |
| CN102607950A (en) * | 2012-03-05 | 2012-07-25 | 山东科技大学 | Rock shearing seepage coupling true triaxial test system |
-
2012
- 2012-12-31 CN CN2012105910254A patent/CN103063518A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762003A (en) * | 1987-05-01 | 1988-08-09 | The United States Department Of Energy | Material test machine for tension-compression tests at high temperature |
| US5911164A (en) * | 1998-02-10 | 1999-06-08 | Mcrae; John L. | Compaction and pavement design testing machine and method for testing flexible pavement materials |
| CN101271103A (en) * | 2008-05-16 | 2008-09-24 | 东南大学 | Experimental device for concrete multifactor permanent stability under co-action of pulling stress and surroundings |
| CN102175529A (en) * | 2011-01-26 | 2011-09-07 | 徐州师范大学 | Creep permeation full-distance coupling test system for broken rock sample |
| CN102288485A (en) * | 2011-05-12 | 2011-12-21 | 河海大学 | Large-sized fully graded concrete axial-tension tester |
| CN102607950A (en) * | 2012-03-05 | 2012-07-25 | 山东科技大学 | Rock shearing seepage coupling true triaxial test system |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442718A (en) * | 2015-08-04 | 2017-02-22 | 中国石油化工股份有限公司 | Rock sound wave property testing apparatus |
| CN106568622A (en) * | 2016-10-12 | 2017-04-19 | 河海大学 | Test device for positive pressure water saturation of high strength rock sample and use method |
| CN106568622B (en) * | 2016-10-12 | 2019-10-25 | 河海大学 | For the water saturated experimental rig of high-intensitive rock sample positive pressure and application method |
| CN106969992A (en) * | 2017-04-28 | 2017-07-21 | 榆林学院 | The test apparatus of solid dielectric deterioration destruction under a kind of simulation fluviation |
| CN106969992B (en) * | 2017-04-28 | 2023-03-14 | 长安大学 | Test instrument for simulating solid medium degradation damage under flowing water effect |
| CN108225904B (en) * | 2018-04-11 | 2019-06-04 | 四川大学 | The fixture that rocks in direct tension is tested and the test method based on the fixture |
| CN108225904A (en) * | 2018-04-11 | 2018-06-29 | 四川大学 | The fixture of rocks in direct tension experiment and the test method based on the fixture |
| CN108519317A (en) * | 2018-04-24 | 2018-09-11 | 钦州学院 | Rock stress-seepage coupling test device under uniaxial direct tensile load |
| CN108519317B (en) * | 2018-04-24 | 2023-10-31 | 北部湾大学 | Rock stress-seepage coupling test device under direct tensile load |
| CN109163965B (en) * | 2018-09-26 | 2020-12-15 | 江苏丰源船舶工程有限公司 | Chain strength detection device of chain bucket type sand dredger |
| CN109163965A (en) * | 2018-09-26 | 2019-01-08 | 姜军 | A kind of chain strength detection device of chain-bucket dredge boat |
| CN109443885A (en) * | 2019-01-08 | 2019-03-08 | 中南大学 | A kind of rock triaxial extension test test specimen group device and its manufacturing method |
| CN109443885B (en) * | 2019-01-08 | 2021-02-02 | 中南大学 | Rock triaxial tensile test piece set device and manufacturing method thereof |
| CN110879129A (en) * | 2019-11-05 | 2020-03-13 | 昆明理工大学 | Device for testing influence of pipeline deformation on liquid flow in closed-loop pressure system |
| CN110879129B (en) * | 2019-11-05 | 2021-06-01 | 昆明理工大学 | Device for testing influence of pipeline deformation on liquid flow in closed-loop pressure system |
| CN113504119A (en) * | 2021-08-13 | 2021-10-15 | 大连海事大学 | Rock seepage device under stretching action and test method |
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Application publication date: 20130424 |