CN2532479Y - Auxiliary device for rock destroy process permeability test - Google Patents

Auxiliary device for rock destroy process permeability test Download PDF

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Publication number
CN2532479Y
CN2532479Y CN 02219457 CN02219457U CN2532479Y CN 2532479 Y CN2532479 Y CN 2532479Y CN 02219457 CN02219457 CN 02219457 CN 02219457 U CN02219457 U CN 02219457U CN 2532479 Y CN2532479 Y CN 2532479Y
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CN
China
Prior art keywords
rock
cylinder barrel
piston
cover plate
mechanics testing
Prior art date
Application number
CN 02219457
Other languages
Chinese (zh)
Inventor
陈占清
李天珍
缪协兴
Original Assignee
中国矿业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国矿业大学 filed Critical 中国矿业大学
Priority to CN 02219457 priority Critical patent/CN2532479Y/en
Application granted granted Critical
Publication of CN2532479Y publication Critical patent/CN2532479Y/en

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Abstract

The utility model relates to an infiltration characteristic test additional equipment matched with the MTS815 and the MTS816 series of rock mechanics testing systems in the rock breaking process. The equipment consists of a cover board (1), a perforated plate (2), a filter pad (3), a rubber sleeve gasket (4), a cylinder (5) and a piston (6), wherein the rubber sleeve gasket (4) is arranged on an axial loading apparatus of the rock mechanics testing system to complete the infiltration characteristic continuous changes test in the rock breaking process;the sealability of the equipment is not influenced by the cranny expansion and stretch of the sample, and the function of the rock mechanics testing system can be extended.

Description

A kind of rock failure mechanism of rock process permeability characteristic test attachment device

One, technical field

The utility model relates to rock material mechanical property test technical field, specifically a kind of and MTS815 and the matching used rock failure mechanism of rock process permeability characteristic test attachment device that is used for of 816 serial rock mechanics testing systems, make MTS815 and 816 serial rock mechanics testing systems can carry out stable state and transient state permeability test after the rock burst, the function that has expanded rock mechanics testing system.

Two, background technology

At present, do not see as yet in the domestic and foreign literature about on MTS815 and 816 serial rock mechanics testing systems, carrying out the report that rock failure mechanism of rock process Penetration Signature changes test continuously, the production firm of this rock mechanics testing system does not provide the attachment device of rock failure mechanism of rock process permeability characteristic test yet, because rock sample does not have load-bearing capacity after destroying, axial seal can not realize, and for example the fruit seepage pressure is equal to or higher than confined pressure, permeation liquid may be burst sealing shroud and enter and enclose the chamber, so the crack of testing requirements rock sample can not fully be expanded and open.The Penetration Signature that contains the test that runs through the crack just can not be recorded, and rock failure mechanism of rock process permeability characteristic test can't carry out, and can only fully not expand the column criterion core permeability test that advances in the crack.

Three, technology contents

(1) goal of the invention: the purpose of this utility model provides a kind of and MTS815 and the supporting attachment device that is used for rock failure mechanism of rock process permeability characteristic test of 816 serial rock mechanics testing systems, the crack propagation of sample and the sealing property of opening the system of not influencing, can finish stable state and transient state permeability test after the rock burst, for Penetration Signature and dynamic behavior before and after mining and the Geotechnical Engineering department research rock burst provide technical service, also, research institution provides technological means simultaneously for carrying out the rule of permeating after the rock burst.

(2) technical scheme: the utility model is a kind of brand-new and MTS815 and the matching used rock failure mechanism of rock process of 816 serial rock mechanics testing systems permeability characteristic test attachment device, its major technique is characterised in that: this rock failure mechanism of rock process permeability characteristic test attachment device comprises cover plate, cylinder barrel, piston, rubber sealing boot, porous plate and filter pad, be installed in the axial charger of MTS815 and 816 serial rock mechanics testing systems, rubber seal is placed between rock sample and the inner wall of cylinder, both easy deformation, good radial seal effect is arranged again, there are filter pad and porous plate in the upper end of rock sample in cylinder barrel, there is porous plate the lower end, cover plate is above cylinder barrel, its center pit docks with the center pit of the axial loading spherical indenter of cylinder barrel and rock mechanics testing system, piston is positioned at the below of cylinder barrel, its center pit docks with the axial loading triaxial chamber centre hole of base of rock mechanics testing system, plunger designs becomes step shape, provides the space for fluororubber flows.For realizing highly reliable sealing, between the axial loading spherical indenter of cover plate and rock mechanics testing system, between cover plate and the cylinder barrel, piston and the rock mechanics testing system axial seal and the radial seal between piston and the cylinder barrel that axially load between the triaxial chamber base all adopt the sealing of O type rubber seal.

(3) technique effect: the utility model has the following advantages through actual use the in MTS815.02 type rock mechanics testing system: 1. this device sealing realizes having high reliability (just can reach desirable sealing effectiveness under the axial load of 2kN) easily; 2. when carrying out the steady-state permeation test, going out the flow liquid body can discharge, and the pore pressure system of protection MTS815 and 816 serial rock mechanics testing systems avoids polluting; 3. can carry out infiltration to rock sample, can obtain variation (sudden change) rule of rock failure mechanism of rock front and back Penetration Signature and loading velocity changes size to Penetration Signature influence while loading.

Four, description of drawings

Accompanying drawing is a structural profile synoptic diagram of the present utility model.

Five, embodiment

The embodiment that provides below in conjunction with accompanying drawing does the utility model and describes in further detail, as shown in drawings, the utility model is a kind of brand-new and MTS815 and the matching used rock failure mechanism of rock process of 816 serial rock mechanics testing systems permeability characteristic test attachment device, this attachment device is installed in the axial charger of MTS815 and 816 serial rock mechanics testing systems, first placing porous plate 2 and filter pad 3 in cylinder barrel 5, place rubber sealing boot 4 again, rubber sealing boot 4 is between rock sample and cylinder barrel 5 inwalls, put into porous plate 2 again, piston 6 is installed at last, piston 6 axially loads the triaxial chamber base with rock mechanics testing system and docks, its center pit communicates with center pit on the triaxial chamber base, cover plate 1 is above cylinder barrel 5, and its center pit docks with the axial loading spherical indenter center pit of cylinder barrel 5 and rock mechanics testing system.For realizing highly reliable sealing effectiveness, in the axial seal between the axial loading spherical indenter of cover plate 1 and rock mechanics testing system, between cover plate 1 and the cylinder barrel 5, between the axial loading triaxial chamber base of piston 6 and rock mechanics testing system, and the sealing of O type rubber seal is all adopted in the radial seal between piston 6 and the cylinder barrel 5.When carrying out rock failure mechanism of rock process permeability characteristic test, permeation liquid is from the supercharger of rock mechanics testing system, enter rock sample through triaxial chamber base, piston 6 and porous plate 2, rock sample carrying back produces the crack and when being radially expanded, fluororubber sealing shroud 4 flows vertically, for the expansion of rock fracture with open and abdicate the space, promptly not additional very big radial stress, seepage flow liquid flows out from rock sample, through filter pad 3, porous plate 2, cylinder barrel 5, cover plate 1, get back to the axial loading spherical indenter of rock mechanics testing system.

Claims (2)

  1. One kind with MTS815 and the matching used rock failure mechanism of rock process of 816 serial rock mechanics testing systems permeability characteristic test attachment device, it is characterized in that: this device comprises cover plate (1), porous plate (2), filter pad (3), rubber sealing boot (4), cylinder barrel (5) and piston (6), rubber sealing boot (4) places between rock sample and cylinder barrel (5) inwall, the upper end of the interior rock sample of cylinder barrel (5) is followed successively by filter pad (3) and porous plate (2), there is porous plate (2) lower end, cover plate (1) is in the top of cylinder barrel (5), its center pit and cylinder barrel (5), axially the spherical indenter center pit of charger communicates, piston (6) is positioned at cylinder barrel (5) below, and its center pit communicates with the triaxial chamber centre hole of base of axial charger.For realizing highly reliable sealing, at cover plate (1) and axially load between the spherical indenter, between cover plate (1) and the cylinder barrel (5), piston (6) and the axially axial seal between the loading triaxial chamber base, and the radial seal between piston (6) and the cylinder barrel (5) all adopts O type rubber seal to seal.
  2. 2. a kind of rock failure mechanism of rock process permeability characteristic test attachment device according to claim 1, it is characterized in that: piston (6) is a step shape.
CN 02219457 2002-03-22 2002-03-22 Auxiliary device for rock destroy process permeability test CN2532479Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02219457 CN2532479Y (en) 2002-03-22 2002-03-22 Auxiliary device for rock destroy process permeability test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02219457 CN2532479Y (en) 2002-03-22 2002-03-22 Auxiliary device for rock destroy process permeability test

Publications (1)

Publication Number Publication Date
CN2532479Y true CN2532479Y (en) 2003-01-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02219457 CN2532479Y (en) 2002-03-22 2002-03-22 Auxiliary device for rock destroy process permeability test

Country Status (1)

Country Link
CN (1) CN2532479Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312466C (en) * 2005-04-07 2007-04-25 河海大学 Flexible wall permeameter for measuring coefficient of permeability
CN1995960B (en) * 2006-12-20 2010-05-19 中国矿业大学 Curved rock sample permeability test device
CN102095652A (en) * 2011-02-28 2011-06-15 中国矿业大学 Penetration test device of shorn rock samples
CN103822809A (en) * 2014-02-21 2014-05-28 东北大学 Rock sample sealing method for hard rock true triaxial test
CN105388098A (en) * 2015-12-20 2016-03-09 湖南科技大学 Rock fracture preparation and seepage device and seepage characteristic test method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312466C (en) * 2005-04-07 2007-04-25 河海大学 Flexible wall permeameter for measuring coefficient of permeability
CN1995960B (en) * 2006-12-20 2010-05-19 中国矿业大学 Curved rock sample permeability test device
CN102095652A (en) * 2011-02-28 2011-06-15 中国矿业大学 Penetration test device of shorn rock samples
CN102095652B (en) * 2011-02-28 2013-01-02 中国矿业大学 Penetration test device of shorn rock samples
CN103822809A (en) * 2014-02-21 2014-05-28 东北大学 Rock sample sealing method for hard rock true triaxial test
CN103822809B (en) * 2014-02-21 2016-01-20 东北大学 A kind of rock sample encapsulating method for hard rock true triaxial test
CN105388098A (en) * 2015-12-20 2016-03-09 湖南科技大学 Rock fracture preparation and seepage device and seepage characteristic test method
CN105388098B (en) * 2015-12-20 2018-01-02 湖南科技大学 A kind of test method produced with seepage apparatus and seepage characteristic of rock fracture

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