CN108693047A - A kind of sealing device of rock fracture shearing Seepage Experiment - Google Patents

A kind of sealing device of rock fracture shearing Seepage Experiment Download PDF

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Publication number
CN108693047A
CN108693047A CN201810285629.3A CN201810285629A CN108693047A CN 108693047 A CN108693047 A CN 108693047A CN 201810285629 A CN201810285629 A CN 201810285629A CN 108693047 A CN108693047 A CN 108693047A
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CN
China
Prior art keywords
cushion block
iron wire
sealing
rock
sleeve
Prior art date
Application number
CN201810285629.3A
Other languages
Chinese (zh)
Inventor
李迎春
屈耀东
马天辉
Original Assignee
大连理工大学
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Filing date
Publication date
Application filed by 大连理工大学 filed Critical 大连理工大学
Priority to CN201810285629.3A priority Critical patent/CN108693047A/en
Publication of CN108693047A publication Critical patent/CN108693047A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/24Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces

Abstract

The invention belongs to rock mechanics technical fields, are related to a kind of sealing device of rock fracture shearing Seepage Experiment.The device includes the seepage apparatus of the shear for shear crack rock sample, sealing device and control fluid flowing, and shear includes normal direction pressure plate, pedestal, upper cushion block and lower cushion block;Fissure rock sample is positioned between lower cushion block, and upper cushion block connects normal direction pressure plate, lower cushion block connect base.Sealing device include sleeve, upper dual iron wire sealing ring and under dual iron wire sealing ring, sleeve is sleeved on the outer wall of cushion block, rock sample and lower cushion block, and upper and lower dual iron wire sealing ring is respectively fitted over the both ends of sleeve.Seepage apparatus includes that water inlet pipe, outlet pipe, water inlet pipe water valve and outlet pipe water valve, flow are entered by water inlet pipe, by being flowed out by outlet pipe after rock fracture.The sealing ring of the present invention is twisted together by the double-deck dual winding of iron wire loop head iron wire, avoids the gap occurred at single layer iron wire kink, ensures good leakproofness.

Description

A kind of sealing device of rock fracture shearing Seepage Experiment

Technical field

The invention belongs to rock mechanics technical fields, are related to a kind of sealing device of rock fracture shearing seepage tests.

Background technology

The shear-seepage characteristic of rock fracture is studied in Serious geological disasters and large-sized rock mass engineering research all has weight Want meaning.Us can be helped to be fully understood from about the experimental study of rock fracture shear-seepage characteristic in labs The mechanical state of variation and seepage flow fluid of the crack under hydraulic coupling action, theories integration is provided for practical engineering application.

There are many experimental study in terms of currently shearing seepage characteristic to rock fracture, and the sealing problem of wherein seepage flow is always One big technological difficulties.Main cause is that traditional sealing means are often the kink sealing of single layer iron wire, and this sealing means are often There is gap at iron wire interface kink, causes sealing effect bad.

Invention content

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of stable rock fractures that is used for of sealing to shear Sealing device in seepage tests.

The technical solution adopted in the present invention is:

A kind of sealing device of rock fracture shearing Seepage Experiment includes the shearing dress for shear crack rock sample It sets, the seepage apparatus of sealing device and control fluid flowing;

The shear includes normal direction pressure plate 1, pedestal 8, upper cushion block 2a and lower cushion block 2b;Rock sample 7 is placed in Between upper cushion block 2a and lower cushion block 2b, the upper surface connection normal direction pressure plate 1 of upper cushion block 2a, the lower surface of lower cushion block 2b connects bottom Seat 8;Normal direction pressure plate 1 applies Normal stress to upper cushion block 2a, and rock sample 7 is along the crack changing of the relative positions;

The sealing device include sleeve 5, upper dual iron wire sealing ring 6a and under dual iron wire sealing ring 6b;Described Sleeve 5 is sleeved on the outer wall of cushion block 2a, rock sample 7 and lower cushion block 2b;The upper dual iron wire sealing ring 6a and lower pair Weight iron wire sealing ring 6b is respectively fitted over the both ends of sleeve 5, and sleeve 5 is fastened and sealed;

The seepage apparatus includes water inlet pipe 3a, outlet pipe 3b, water inlet pipe water valve 4a and outlet pipe water valve 4b;Described Water inlet pipe 3a passes through the inside of upper cushion block 2a, one end to be in contact with the upper surface of rock sample 7, and the other end is equipped with water inlet pipe Water valve 4a;The outlet pipe 3b passes through the inside of lower cushion block 2b, one end to be in contact with the lower surface of rock sample 7, the other end Outlet pipe water valve 4b is installed;Flow is entered by water inlet pipe 3a, by being flowed out by outlet pipe 3b after rock fracture.

The material of the sleeve 5 is polyurethane.

The upper dual iron wire sealing ring 6a dual iron wire sealing ring 6b under, are twisted together by the dual winding of iron wire.

The beneficial effects of the invention are as follows:The double-deck dual winding of iron wire loop head iron wire is twisted together, and the torsion of single layer iron wire is avoided The gap occurred at knot, ensure that good leakproofness.

Description of the drawings

Fig. 1 is sealed elevation cross-sectional view;

Fig. 2 is sealing schematic diagram.

In figure:1 normal direction pressure plate;The upper cushion blocks of 2a;2b lower cushion blocks;3a water inlet pipes;3b outlet pipes;4a water inlet pipe water valves;4b Outlet pipe water valve;5 sleeves;The upper dual iron wire sealing rings of 6a;Dual iron wire sealing ring under 6b;7 rock samples;8 pedestals.

Specific implementation mode

Below in conjunction with the accompanying drawings and technical solution, the specific implementation mode further illustrated the present invention.

A kind of sealing devices of rock fracture shearing Seepage Experiment of referring to Fig.1~Fig. 2, including it is used for the examination of shear crack rock The shear of sample, the seepage apparatus of sealing device and control fluid flowing;A kind of sealing of rock fracture shearing Seepage Experiment Device includes the seepage apparatus of the shear for shear crack rock sample, sealing device and control fluid flowing;It is described Shear include normal direction pressure plate 1, pedestal 8, upper cushion block 2a and lower cushion block 2b;Rock sample 7 is placed in cushion block 2a under Between cushion block 2b, the upper surface connection normal direction pressure plate 1 of upper cushion block 2a, the lower surface connect base 8 of lower cushion block 2b;Normal direction is pressurizeed Plate 1 applies Normal stress to upper cushion block 2a, and rock sample 7 is along the crack changing of the relative positions;The sealing device includes sleeve 5, upper dual Iron wire sealing ring 6a dual iron wire sealing ring 6b under;The sleeve 5 is sleeved on cushion block 2a, rock sample 7 and lower cushion block 2b Outer wall on;The upper dual iron wire sealing ring 6a dual iron wire sealing ring 6b under are respectively fitted over the both ends of sleeve 5, to set Cylinder 5 is fastened and is sealed;The seepage apparatus includes water inlet pipe 3a, outlet pipe 3b, water inlet pipe water valve 4a and outlet pipe water Valve 4b;The water inlet pipe 3a passes through the inside of upper cushion block 2a, one end to be in contact with the upper surface of rock sample 7, other end peace Equipped with water inlet pipe water valve 4a;The outlet pipe 3b passes through the inside of lower cushion block 2b, the lower surface phase of one end and rock sample 7 Contact, the other end are equipped with outlet pipe water valve 4b;Flow is entered by water inlet pipe 3a, by being flowed by outlet pipe 3b after rock fracture Go out.

The sealing device includes for sealing the sealing device for upper portion of annular of upper cushion block 2a and sleeve 5, for sealing underlay The sealer of block 2b and sleeve 5.

The sealing device for upper portion of annular includes sleeve 5 and upper dual iron wire sealing ring 6a, and sleeve 5 is sealed with upper dual iron wire It encloses 6a cooperations and realizes sealing;

The sealer includes the dual iron wire sealing ring 6b under of sleeve 5, and sleeve dual iron wire under seals It encloses 6b cooperations and realizes sealing.

The upper dual iron wire sealing ring 6a dual iron wire sealing ring 6b under are twisted together by the dual winding of iron wire.It is double Layer iron wire sealing ring realizes sealing with sleeve cooperation.

The seepage apparatus includes outlet pipe 3b, water inlet pipe 3a, water inlet pipe water valve 4 and outlet pipe water valve 4b;

As shown in Fig. 1~Fig. 2, the shear includes:Normal direction pressure plate 1, upper cushion block 2a, lower cushion block 2b and pedestal 8.Normal stress is applied to upper cushion block 2a by normal direction pressure plate 1, rock sample 7 is along the crack changing of the relative positions.

The seepage apparatus includes:Water inlet pipe 3a, outlet pipe 3b, water inlet pipe water valve 4a, outlet pipe water valve 4b.Flow passes through Water inlet pipe 3a enters, by being flowed out by outlet pipe 3b after rock fracture.

The sealing device includes:Sleeve 5, upper dual iron wire sealing ring 6a, under dual iron wire sealing ring 6b.It is dual up and down Iron wire sealing ring coordinates with sleeve forms excellent sealing environment by seepage flow liquid in rock with the oil isolation for providing confining pressure.

Upper dual iron wire sealing ring 6a dual iron wire sealing ring 6b under are to surround sleeve two weeks by thin wire as shown in Figure 2 Kink is fixed on lower cushion block and is formed afterwards.

Claims (3)

1. a kind of sealing device of rock fracture shearing Seepage Experiment, which is characterized in that the device includes being used for shear crack rock The shear of stone sample, the seepage apparatus of sealing device and control fluid flowing;
The shear includes normal direction pressure plate (1), pedestal (8), upper cushion block (2a) and lower cushion block (2b);Rock sample (7) it is placed between cushion block (2a) and lower cushion block (2b), the upper surface connection normal direction pressure plate (1) of upper cushion block (2a), lower cushion block The lower surface connect base (8) of (2b);Normal direction pressure plate (1) applies Normal stress to upper cushion block (2a), and rock sample (7) edge is split The gap changing of the relative positions;
The sealing device include sleeve (5), upper dual iron wire sealing ring (6a) and under dual iron wire sealing ring (6b);It is described Sleeve (5) be sleeved on the outer wall of cushion block (2a), rock sample (7) and lower cushion block (2b);The upper dual iron wire sealing Circle (6a) and under dual iron wire sealing ring (6b) be respectively fitted over the both ends of sleeve (5), sleeve (5) is fastened and is sealed;
The seepage apparatus includes water inlet pipe (3a), outlet pipe (3b), water inlet pipe water valve (4a) and outlet pipe water valve (4b);Institute The water inlet pipe (3a) stated passes through the inside of upper cushion block (2a), one end to be in contact with the upper surface of rock sample (7), other end peace Equipped with water inlet pipe water valve (4a);The outlet pipe (3b) passes through the inside of lower cushion block (2b), one end and rock sample (7) Lower surface is in contact, and the other end is equipped with outlet pipe water valve (4b);Flow is entered by water inlet pipe (3a), after rock fracture It is flowed out by outlet pipe (3b).
2. a kind of sealing device of rock fracture shearing Seepage Experiment according to claim 1, which is characterized in that described The material of sleeve (5) is polyurethane.
3. a kind of sealing device of rock fracture shearing Seepage Experiment according to claim 1 or 2, which is characterized in that institute The upper dual iron wire sealing ring (6a) stated and under dual iron wire sealing ring (6b), twisted together by the dual winding of iron wire.
CN201810285629.3A 2018-03-29 2018-03-29 A kind of sealing device of rock fracture shearing Seepage Experiment CN108693047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810285629.3A CN108693047A (en) 2018-03-29 2018-03-29 A kind of sealing device of rock fracture shearing Seepage Experiment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810285629.3A CN108693047A (en) 2018-03-29 2018-03-29 A kind of sealing device of rock fracture shearing Seepage Experiment

Publications (1)

Publication Number Publication Date
CN108693047A true CN108693047A (en) 2018-10-23

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CN201810285629.3A CN108693047A (en) 2018-03-29 2018-03-29 A kind of sealing device of rock fracture shearing Seepage Experiment

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2529064Y (en) * 2002-04-01 2003-01-01 朱捍东 Connector for joint of plastic pipe and rigid pipe
CN101034088A (en) * 2007-04-18 2007-09-12 同济大学 Rock joint shear-seepage coupling experiment box
CN102095652A (en) * 2011-02-28 2011-06-15 中国矿业大学 Penetration test device of shorn rock samples
CN204389353U (en) * 2015-01-30 2015-06-10 湖南科技大学 A kind of temperature-seepage coupling test test specimen packoff
CN106018748A (en) * 2016-06-27 2016-10-12 山东科技大学 Single-joint rock mass flow-solid coupling testing system and method
CN205982015U (en) * 2016-07-08 2017-02-22 中国地质大学(武汉) Rock fracture seepage flow parameter testing device under high temperature high pressure condition
CN107727506A (en) * 2017-09-22 2018-02-23 河海大学 A kind of Single Fracture rock mass chemical stress coupling test device and test method
CN207946314U (en) * 2018-03-29 2018-10-09 大连理工大学 A kind of sealing device of rock fracture shearing Seepage Experiment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2529064Y (en) * 2002-04-01 2003-01-01 朱捍东 Connector for joint of plastic pipe and rigid pipe
CN101034088A (en) * 2007-04-18 2007-09-12 同济大学 Rock joint shear-seepage coupling experiment box
CN102095652A (en) * 2011-02-28 2011-06-15 中国矿业大学 Penetration test device of shorn rock samples
CN204389353U (en) * 2015-01-30 2015-06-10 湖南科技大学 A kind of temperature-seepage coupling test test specimen packoff
CN106018748A (en) * 2016-06-27 2016-10-12 山东科技大学 Single-joint rock mass flow-solid coupling testing system and method
CN205982015U (en) * 2016-07-08 2017-02-22 中国地质大学(武汉) Rock fracture seepage flow parameter testing device under high temperature high pressure condition
CN107727506A (en) * 2017-09-22 2018-02-23 河海大学 A kind of Single Fracture rock mass chemical stress coupling test device and test method
CN207946314U (en) * 2018-03-29 2018-10-09 大连理工大学 A kind of sealing device of rock fracture shearing Seepage Experiment

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Application publication date: 20181023