CN203216804U - Uniaxial rock compression creepmeter in dry-wet circulating process - Google Patents

Uniaxial rock compression creepmeter in dry-wet circulating process Download PDF

Info

Publication number
CN203216804U
CN203216804U CN 201320018917 CN201320018917U CN203216804U CN 203216804 U CN203216804 U CN 203216804U CN 201320018917 CN201320018917 CN 201320018917 CN 201320018917 U CN201320018917 U CN 201320018917U CN 203216804 U CN203216804 U CN 203216804U
Authority
CN
China
Prior art keywords
rock
water
reservoir
creepmeter
pressure
Prior art date
Application number
CN 201320018917
Other languages
Chinese (zh)
Inventor
吴平
姚华彦
朱大勇
沈银斌
Original Assignee
合肥工业大学
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 合肥工业大学 filed Critical 合肥工业大学
Priority to CN 201320018917 priority Critical patent/CN203216804U/en
Application granted granted Critical
Publication of CN203216804U publication Critical patent/CN203216804U/en

Links

Abstract

The utility model discloses a uniaxial rock compression creepmeter in dry-wet circulating process. The uniaxial rock compression creepmeter comprises a rock sample clamping device, a pressure stabilizing device, a loading device, and a dry-wet circulating device, and is characterized in that the rock sample clamping device consists of a reaction frame, a jack, an airtight cover plate, a liquid container and a ball angle pressure head; the pressure stabilizing device consists of a base, a pressure meter and a bag type liquid container; the loading device consists of an oil pump, the bag type liquid container and the pressure meter are fixed on the base; and the dry-wet circulating device comprises a water inlet, a water outlet, an air inlet, an air outlet, the water pump, an air blower, and temperature-control heating equipment. The uniaxial rock compression creepmeter has wide application values on the research of the mechanical property and creepage property of rock soil in dry-wet circulating process in the fields of geotechnical engineering, water conservancy engineering, underground engineering and the like.

Description

The uniaxial compression creepmeter of rock in a kind of drying and watering cycle process
Technical field
The utility model relates to the Geotechnical Engineering field, the uniaxial compression creep test device that specifically belongs to rock in a kind of drying and watering cycle process is mainly used in solving in the Geotechnical Engineering field variation owing to underground water table and makes and be in the drying and watering cycle rock mass long term stability problem that causes of the deformation of creep of ground body on.
Background technology
The reservoir level cyclical variation causes that the ground body always is in " dry-full water " active state, and the engineering geology disaster that causes has thus caused the attention of numerous scholars and engineering circle, and the interaction of research water petrofacies becomes the hot issue in the Geotechnical Engineering.The interaction of water petrofacies mainly shows as: the interaction of (1) water petrofacies makes mineralogical composition, factor of porosity, cementing matter and the permutation and combination method thereof of ground body change, thereby cause damage of rock, cause that its intensity (particularly shear strength parameter) takes place to reduce significantly, the destruction that causes soft rock, even cause the unstability on slope, bank, storehouse, to the long-time stability generation threat of Geotechnical Engineering.(2) compose and to be stored in that rock mass can produce " creep " phenomenon for a long time in the drying and watering cycle process under the stress field effect, the creep properties of rock mass determines rock mass under the stress effect, and distortion can increase in time gradually, finally causes rock mass creep to destroy.The interaction of water petrofacies makes rock mass inside change, and causes damage of rock, is easier to take place creep.
The drying and watering cycle process is to the conventional test methodologies of rock mechanics properties influence, be rock sample to be submerged take out after freely absorbing water 48 hours, and put into drying box, after under 45 ℃ of conditions dry 24 hours, take out, this is " dry-full water " cyclic process, tests its mechanical property again after the rock sample process several times drying and watering cycle process.The method is divided into two independent processs of the test with drying and watering cycle and rock mechanics experiment, can not simulate under true load-bearing state, drying and watering cycle on water to the influence of the mechanical characteristic of rock.The test apparatus of this respect is less at present, test method also remains to be developed, especially study drying and watering cycle and also be in the starting stage at present in creep of rock characteristic aspect on, the test of the quantitative relevant important parameter of mensuration seldom, thereby limited the development of rock rheological theory system.
The utility model content
The purpose of this utility model is to provide under a kind of simulated reservoir water level cyclical variation condition, and the axial deformation of rock sample in the drying and watering cycle mechanism, crackle expansion, failure mode etc. carry out the test apparatus of real-time monitored and monitoring.
In order to address the above problem, the purpose of this utility model is achieved in that
The uniaxial compression creepmeter of rock comprises rock sample clamping device, stable-pressure device, charger, wetting and drying cycle apparatus in a kind of drying and watering cycle process, and described rock sample clamping device is by reaction frame, lifting jack, seal cover board, reservoir, ball angle pressure head; Described stable-pressure device is by pedestal, tensimeter, and capsule formula reservoir constitutes; Described charger is to be fixed on the pedestal by capsule formula reservoir and tensimeter, and oil pump constitutes; Described wetting and drying cycle apparatus includes water inlet, water delivering orifice, air inlet, air outlet, water pump, fan blower, temperature control firing equipment; Described reservoir adopts high-intensity organic glass, the reservoir activity is placed on the reaction frame, the reservoir both sides are equipped with water inlet and water delivering orifice respectively, water inlet links to each other with water pump by flexible water conduit, flexible water conduit is provided with flow regulator, the reservoir top is equipped with the seal cover board for the sealing rock sample, be equipped with air inlet and air outlet on the seal cover board, air inlet is connected with the temperature control firing equipment by flexible pipe, flexible pipe is provided with valve, the sphere end of ball angle pressure head passes seal cover board and contacts with the sphere end of lifting jack is movable, and the planar ends top of lifting jack is placed on the inner roof wall of reaction frame, and lifting jack is connected on the outlet connection of pressure stabilizing device oil circuit by oil pipe.
Described tensimeter and capsule formula accumulator are fixedly mounted on the pedestal, are communicated with the pedestal oil circuit.
The planar ends of described ball angle pressure head is just on rock sample, ball angle pressure head outer wall is provided with pole, pole contacts with the contact of displacement meter, displacement meter adopts Magnetic gauge stand to fix, oil pump links to each other with the in-out end of reversal valve by oil pipe, reversal valve is provided with plural oil circuit outlet connection in parallel, usually adopt two oil circuit outlets, each oil circuit outlet connection connects the inlet union of oil circuit on the stable-pressure device by oil pipe, and the outlet connection of oil circuit links to each other by the inlet union of the lifting jack on oil pipe and the rock sample clamping device on the stable-pressure device.
Described reversal valve is provided with related plural oil circuit joint.
The uniaxial compression creepmeter of rock has the following advantages in the drying and watering cycle process of the present utility model:
Can carry out the creep test that is in the different conditions rock in the drying and watering cycle process, and can be by crackle expansion and the failure mode of transparent organic glass reservoir observation rock.
Utilize thermal current circulation can make rock sample air-dry fast, utilize water pump can make the rock water of freely satisfying; By controlling the air inlet gas flow temperature and advancing (going out) water flow velocity, experience " dry-full water " recurrent state when making the rock bearing load, but the variation of real simulation reservoir level cycle causes the present alternation of wetting and drying state of rock.
Because the influence that external environment changes and build-up of pressure when unstable, capsule formula accumulator can play pressure stabilization function preferably to the timely supplementary pressure of total system when equipment.
One table oil pump can be controlled the above loading system of two covers by the how logical oil circuit joint of reversal valve, and the extensibility of instrument is stronger.
Utilize displacement meter to carry out The real time measure to the axial deformation of rock in deformation process, the precision height, workable; Can and destroy overall process and carry out overall process collection, analysis and visual input and output the distortion of rock by external digital vedio recording system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein number in the figure is: fan blower 1, temperature control firing equipment 2, water pump 3, flow regulator 4, pedestal 5, accumulator 6, tensimeter 7, reversal valve 8, oil pump 9, displacement meter 10, pole 11, reaction frame 12, lifting jack 13, ball angle pressure head 14, seal cover board 15, rock sample 16, reservoir 17, water inlet 18, water delivering orifice 19, air inlet 20, air outlet 21.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified
Referring to accompanying drawing, the uniaxial compression creepmeter of rock comprises rock sample clamping device, stable-pressure device, charger, wetting and drying cycle apparatus in a kind of drying and watering cycle process, described rock sample clamping device is by reaction frame 12, lifting jack 13, seal cover board 15, reservoir 17, ball angle pressure head 14 constitutes; Described stable-pressure device is by pedestal 5, tensimeter 7, and capsule formula reservoir 6 constitutes; Described charger is to be fixed on the pedestal 5 by capsule formula reservoir 6 and tensimeter 7, and oil pump 9 constitutes; Described wetting and drying cycle apparatus includes water inlet 18, water delivering orifice 19, air inlet 20, air outlet 21, water pump 3, fan blower 1, temperature control firing equipment 2; Described reservoir 17 adopts high-intensity organic glass, reservoir 17 activities are placed on the reaction frame 12, reservoir 17 both sides are equipped with water inlet 18 and water delivering orifice 19 respectively, water inlet 18 links to each other with water pump 3 by flexible water conduit, flexible water conduit is provided with flow regulator 4, reservoir 17 tops are equipped with the seal cover board 15 for sealing rock sample 16, be equipped with air inlet 20 and air outlet 21 on the seal cover board 15, air inlet 20 is connected with firing equipment by flexible pipe, flexible pipe is provided with valve, the sphere end of ball angle pressure head 14 passes seal cover board 15 and contacts with the sphere end of lifting jack 13 is movable, the planar ends top of lifting jack 13 is placed on the inner roof wall of reaction frame 12, lifting jack 12 is connected on the outlet connection of pressure stabilizing device oil circuit by oil pipe, stable-pressure device is by capsule formula accumulator 6, tensimeter 7 and pedestal 5 constitute, and tensimeter 7 and capsule formula accumulator 6 are fixedly mounted on the pedestal 5, are communicated with pedestal 5 oil circuits.Just on rock sample, ball angle pressure head 14 outer walls are provided with pole 11 to the planar ends of ball angle pressure head 14, and pole 11 contacts with the contact of displacement meter 10, and displacement meter 10 adopts Magnetic gauge stand to fix.Oil pump 9 links to each other by the in-out end of oil pipe with reversal valve 8, reversal valve 8 is provided with plural oil circuit outlet connection in parallel, usually adopt two oil circuit outlets, each oil circuit outlet connection connects the inlet union of oil circuit on the stable-pressure device by oil pipe, and the outlet connection of oil circuit links to each other by the inlet union of the lifting jack 13 on oil pipe and the rock sample clamping device on the stable-pressure device.
The principle of work of the uniaxial compression creepmeter of rock in the utility model drying and watering cycle process:
The plane of ball angle pressure head rectified be placed on the rock sample section, the sphere end in contact of sphere end and lifting jack, the planar ends top of lifting jack is placed on the inwall of the frame of having an effect, lifting jack connects stable-pressure device, and stable-pressure device connects reversal valve, and reversal valve connects oil pump, adopt two reversal valves can connect two cover stable-pressure devices and two cover rock sample clamping devices simultaneously, can carry out two groups of tests simultaneously, as close one of them valve, can carry out single group test.Again displacement meter is fixed by Magnetic gauge stand, the contact of displacement meter is contacted fully with pole on being located at ball angle pressure head.
Install heating arrangement and water filling device, according to the test design step, at first starting mode of pump sets water velocity, and slowly submergence test specimen of water level is treated in water filling in the reservoir, and water filling stops; Test specimen soaked after 48 hours, opened scupper valve, after draining finishes, close scupper valve, open air intake opening and gas outlet valve, it is 45 ℃ that the adjusting attemperating unit arranges temperature, start heating arrangement, allow hot blast in reservoir, circulate 24 hours, be " drying and watering cycle " process.
During on-test, by oil pump rock sample is loaded, when reaching the test design payload values, stop to load, valve-off, this moment, system kept pressure constant state, when system is subjected to influencing pressure and changing to some extent of environmental change, stable-pressure device ftercompction in time makes total system all keep constant pressure at any time.Reading by displacement meter changes, and can draw deformation rule and the feature of rock (dry, saturated, unsaturation) rock under the wet cycle index of different dry, different conditions, can simulate the creep properties of load-bearing rock mass rock mass under the reservoir level cycle changes.Simultaneously, can observe crack propagation law and the failure mode of rock sample in the process of the test by transparent organic glass reservoir in good time, can monitor in real time rock deformation in the loading procedure and crack propagation mode by external digital vedio recording system.

Claims (4)

1. the uniaxial compression creepmeter of rock in the drying and watering cycle process comprises rock sample clamping device, stable-pressure device, charger, wetting and drying cycle apparatus, and it is characterized in that: described rock sample clamping device is by reaction frame, lifting jack, seal cover board, reservoir, ball angle pressure head; Described stable-pressure device is by pedestal, tensimeter, and capsule formula reservoir constitutes; Described charger is to be fixed on the pedestal by capsule formula reservoir and tensimeter, and oil pump constitutes; Described wetting and drying cycle apparatus includes water inlet, water delivering orifice, air inlet, air outlet, water pump, fan blower, temperature control firing equipment; Described reservoir adopts high-intensity organic glass, the reservoir activity is placed on the reaction frame, the reservoir both sides are equipped with water inlet and water delivering orifice respectively, water inlet links to each other with water pump by flexible water conduit, flexible water conduit is provided with flow regulator, the reservoir top is equipped with the seal cover board for the sealing rock sample, be equipped with air inlet and air outlet on the seal cover board, air inlet is connected with the temperature control firing equipment by flexible pipe, flexible pipe is provided with valve, the sphere end of ball angle pressure head passes seal cover board and contacts with the sphere end of lifting jack is movable, and the planar ends top of lifting jack is placed on the inner roof wall of reaction frame, and lifting jack is connected on the outlet connection of pressure stabilizing device oil circuit by oil pipe.
2. the uniaxial compression creepmeter of rock in the drying and watering cycle process according to claim 1, it is characterized in that: described tensimeter and capsule formula accumulator are fixedly mounted on the pedestal, are communicated with the pedestal oil circuit.
3. the uniaxial compression creepmeter of rock in the drying and watering cycle process according to claim 1, it is characterized in that: the planar ends of described ball angle pressure head is just on rock sample, ball angle pressure head outer wall is provided with pole, pole contacts with the contact of displacement meter, displacement meter adopts Magnetic gauge stand to fix, oil pump links to each other with the in-out end of reversal valve by oil pipe, reversal valve is provided with plural oil circuit outlet connection in parallel, adopt two oil circuit outlets, each oil circuit outlet connection connects the inlet union of oil circuit on the stable-pressure device by oil pipe, and the outlet connection of oil circuit links to each other by the inlet union of the lifting jack on oil pipe and the rock sample clamping device on the stable-pressure device.
4. the uniaxial compression creepmeter of rock in the drying and watering cycle process according to claim 3 is characterized in that: described reversal valve is provided with related plural oil circuit joint.
CN 201320018917 2013-01-15 2013-01-15 Uniaxial rock compression creepmeter in dry-wet circulating process CN203216804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320018917 CN203216804U (en) 2013-01-15 2013-01-15 Uniaxial rock compression creepmeter in dry-wet circulating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320018917 CN203216804U (en) 2013-01-15 2013-01-15 Uniaxial rock compression creepmeter in dry-wet circulating process

Publications (1)

Publication Number Publication Date
CN203216804U true CN203216804U (en) 2013-09-25

Family

ID=49206331

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320018917 CN203216804U (en) 2013-01-15 2013-01-15 Uniaxial rock compression creepmeter in dry-wet circulating process

Country Status (1)

Country Link
CN (1) CN203216804U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776983A (en) * 2014-01-27 2014-05-07 甘肃省交通科学研究院有限公司 Rock soil wetting-drying cyclic experiment apparatus
CN104297063A (en) * 2014-10-23 2015-01-21 合肥工业大学 Device and method for testing tensile strength of rock in environment with wetness and dryness change
CN104990795A (en) * 2015-07-13 2015-10-21 三峡大学 A testing apparatus for rock and soil sample accelerated dry-wet cycle under load and test method thereof
CN105181468A (en) * 2015-08-06 2015-12-23 三峡大学 Rock expansion pressure test instrument considering dry-wet circulation effect
CN105203738A (en) * 2015-10-23 2015-12-30 三峡大学 Device for simulating scouring action and weathering action of flow on rock
CN105203410A (en) * 2015-10-15 2015-12-30 安徽省建筑科学研究设计院 Test device for measuring shearing creep characteristic of rock in dry-wet cycling process
CN105954118A (en) * 2016-05-30 2016-09-21 山东大学 Test apparatus and test method for testing shear strength index of soil body through triaxial test
CN106018126A (en) * 2016-05-24 2016-10-12 西安长庆科技工程有限责任公司 Soil mass dry-wet circulating annular shearing instrument capable of measuring humidity
CN107132334A (en) * 2017-04-28 2017-09-05 中国科学院地质与地球物理研究所 Rock physical and mechanic parameter intelligent integral test system and its method of testing
CN108088745A (en) * 2017-12-18 2018-05-29 山东科技大学 Elastic modulus of rock timeliness deterioration process test device and method under a kind of relative humidity cycle effect
CN109580914A (en) * 2019-01-15 2019-04-05 三峡大学 A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776983A (en) * 2014-01-27 2014-05-07 甘肃省交通科学研究院有限公司 Rock soil wetting-drying cyclic experiment apparatus
CN103776983B (en) * 2014-01-27 2015-08-05 甘肃省交通科学研究院有限公司 Ground drying and watering cycle experimental provision
CN104297063A (en) * 2014-10-23 2015-01-21 合肥工业大学 Device and method for testing tensile strength of rock in environment with wetness and dryness change
CN104990795A (en) * 2015-07-13 2015-10-21 三峡大学 A testing apparatus for rock and soil sample accelerated dry-wet cycle under load and test method thereof
CN105181468B (en) * 2015-08-06 2018-05-11 三峡大学 A kind of rock expansion pressure tester for considering drying and watering cycle effect
CN105181468A (en) * 2015-08-06 2015-12-23 三峡大学 Rock expansion pressure test instrument considering dry-wet circulation effect
CN105203410A (en) * 2015-10-15 2015-12-30 安徽省建筑科学研究设计院 Test device for measuring shearing creep characteristic of rock in dry-wet cycling process
CN105203738A (en) * 2015-10-23 2015-12-30 三峡大学 Device for simulating scouring action and weathering action of flow on rock
CN106018126A (en) * 2016-05-24 2016-10-12 西安长庆科技工程有限责任公司 Soil mass dry-wet circulating annular shearing instrument capable of measuring humidity
CN106018126B (en) * 2016-05-24 2018-11-13 西安长庆科技工程有限责任公司 A kind of measurable soil body drying and watering cycle ring shear apparatus of humidity
CN105954118A (en) * 2016-05-30 2016-09-21 山东大学 Test apparatus and test method for testing shear strength index of soil body through triaxial test
CN107132334A (en) * 2017-04-28 2017-09-05 中国科学院地质与地球物理研究所 Rock physical and mechanic parameter intelligent integral test system and its method of testing
CN108088745A (en) * 2017-12-18 2018-05-29 山东科技大学 Elastic modulus of rock timeliness deterioration process test device and method under a kind of relative humidity cycle effect
CN109580914A (en) * 2019-01-15 2019-04-05 三峡大学 A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition

Similar Documents

Publication Publication Date Title
CN102830213B (en) Stand under load coal containing methane gas absorption-desorption-seepage flow experiment system under temperature match curing conditions
CN203534910U (en) Triaxial creep testing device for stress, seepage and chemical coupling of rock
CN103116014B (en) Water-heat-force coupling testing system for large-scale high-pressure soil mass freeze thawing process
CN105865685B (en) A kind of soil expansion stress test device simulated immersion-and air-dry ringing
CN103033442B (en) A kind of gas adsorption test device for desorption
CN103063557B (en) A kind of rock gas penetration test device and assay method
CN101825555B (en) Device for testing axial loading/unloading gas permeability of coal
CN205138940U (en) Test coal body gas adsorbs desorption heat effect experimental system
CN102053141B (en) Method for testing desorption characteristic of externally added water on gas-containing coal body
CN201130176Y (en) High pressure slip-casting pilot model apparatus
CN103454164B (en) Multi-scenarios method coal petrography impact loading experiment device and experimental technique
CN104267172B (en) A kind of multifunctional all formula soil body freezing-thawing test system
CN102297829B (en) Method and device for measuring gas adsorption quantity and adsorption deformation of coal rock under stress condition
CN101629891B (en) Fixedly coupled three-shaft servo seepage pressure chamber containing gas coal thermal flow
CN104458400B (en) A kind of HTHP steam environmental structure material test apparatus
CN202502025U (en) Device for high pressure isothermal absorption experiment of coal
CN103743633B (en) Fluid structure interaction coal rock shear-seepage test device
CN106840851B (en) The unsaturated soil direct shear apparatus experimental rig of adjustable shearing ring diameter
CN105784976B (en) A kind of method of testing using rock mass dynamic unloading effect tester for testing
CN104596909B (en) Multidimensional adds the close coupling of unloading multiphase porous media to damage Seepage Experiment method
CN107228794A (en) Drying and watering cycle unsaturated soil triaxial apparatus based on temperature control
CN101949800A (en) Pressing-twisting multi-shaft loading testing machine
CN103398933A (en) Constant-pressure concrete permeability testing device
CN102706728B (en) Multifunctional unsaturated soil triaxial test device capable of circularly applying suction and method thereof
CN105738248A (en) Gas absorption and desorption experimental device with controllable coal sample moisture content and experimental method thereof

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130925

Termination date: 20140115