CN110132746A - The laboratory experiment simulator and method of triaxial tester progress geological fault mechanical behavior - Google Patents
The laboratory experiment simulator and method of triaxial tester progress geological fault mechanical behavior Download PDFInfo
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- CN110132746A CN110132746A CN201910533635.0A CN201910533635A CN110132746A CN 110132746 A CN110132746 A CN 110132746A CN 201910533635 A CN201910533635 A CN 201910533635A CN 110132746 A CN110132746 A CN 110132746A
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- 238000009533 lab test Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000003325 tomography Methods 0.000 claims abstract description 23
- 239000011435 rock Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000012634 fragment Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims 15
- 239000012496 blank sample Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241001191009 Gymnomyza Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to Geotechnical Engineering field, specifically a kind of triaxial tester carries out the laboratory experiment simulator and method of geological fault mechanical behavior.Triaxial tester of the invention carries out the laboratory experiment simulator of geological fault mechanical behavior, by the way that guide groove is arranged on connection pressing plate, water can be introduced into specimen surface, when triaxial tester is when three directions apply pressure, sample can be made to generate different stress in three directions, adjusting all directions pressure can change the stress state of sample.During the experiment, the pressure of the water of specimen surface is applied in adjustable guide groove, to simulate nature state.Experimental method of the invention, three groups of pressure heads of triaxial tester realize three-dimensional unequal stress environment, and simulate the seepage field under truth by the guide groove on connection pressing plate, can be realized and simulate to stress-seepage environment laboratory test locating for real tomography.
Description
Technical field
The invention belongs to Geotechnical Engineering field, specifically a kind of triaxial tester carries out geological fault mechanical behavior
Laboratory experiment simulator and method.
Background technique
For the underground rock projects such as mineral resources exploitation, petroleum shale gas exploitation, due to fault tectonic movement
The problems such as influencing, being developed along with developmental joint fissure, Weathering Zones of Igneous Rock and underground water near the plane of disruption.Rock in underground
Body can be produced fracture and be destroyed by the effect of horizontal direction tectonic stress, and two sides rock mass the apparent changing of the relative positions occurs along the plane of disruption,
This plane of disruption is commonly known as rock mass fault tectonic, and fault plane is nearby often along with developmental joint fissure and seepage action of ground water
The influence of effect, and ambient stress locating for tomography is three-dimensional unequal stress state.Different fractal dimension tomographies are carried out at present real
Test a kind of effective method not yet.
Summary of the invention
For deficiency above-mentioned in the prior art, the invention of this reality provides a kind of triaxial tester progress geological fault mechanics
The laboratory experiment simulator and method of behavior.
In order to achieve the above object, the solution that the present invention uses is: a kind of triaxial tester progress geological fault power
The laboratory experiment simulator that scholarship and moral conduct is, including support frame, three group oil cylinders are arranged on support frame and oil cylinder axis vertical take-off is arranged, left
Oil cylinder is coaxial with right oil cylinder and cylinder rod is close to support frame center, and upper oil cylinder is coaxial with lower oil cylinder and cylinder rod is close to support frame center,
Preceding oil cylinder is coaxial with rear oil cylinder and cylinder rod is close to support frame center；
Left briquetting is arranged in the cylinder rod end vertical of left oil cylinder, and right briquetting is arranged in the cylinder rod end vertical of right oil cylinder,
Upper holder block is arranged in the cylinder rod end vertical of upper oil cylinder, and lower lock block, preceding oil cylinder is arranged in the cylinder rod end vertical of lower oil cylinder
Cylinder rod end vertical be arranged before briquetting, rear oil cylinder cylinder rod end vertical setting after briquetting.
Further, internal taper hole, limbers one end and internal taper hole is arranged close to support frame center surface in all briquettings
Perforation, the other end extend to briquetting surface, and connection screw thread is arranged close to briquetting surface end in limbers.
Further, connection pressing plate is also set up, the connection clamp surface setting taper is identical as the internal taper hole taper
Outer cone boss, the setting of outer cone boss axle center is arranged on the outer cone boss conical surface close through the center water hole of connection pressing plate
Sealing groove, this seal groove of institute is interior to be arranged sealing ring, and connection pressing plate is connect with outer cone boss apparent surface setting with center water hole
Radiate guide groove.
It further, further include heat-shrink tube and retaining ring, the connection pressing plate is bonded with sample end surfaces, and setting outer cone is convex
Far from sample, heat-shrink tube, heat-shrink tube integral coating sample and connection pressing plate side, heat-shrink tube table is arranged in sample side surface on platform surface
Retaining ring is arranged with pressing plate corresponding position is connect in face.
Further, two pieces is arranged in connection pressing plate, is respectively arranged at sample apparent surface, and two pieces connects the pyrocondensation outside pressing plate
Retaining ring is respectively set in pipe surface.
Further, the surface of connection pressing plate setting radiation guide groove is additionally provided with annular guide channel, the annular guide channel with put
It penetrates and leads intersection.
Further, the sealing ring is O-ring.
Further, the oil cylinder is ram cylinder.
The present invention also provides the laboratory experiment analogy method that a kind of triaxial tester carries out geological fault mechanical behavior, packets
Include following steps:
S1, choosing needs tomography rock mass to be simulated and fault belt rock mass, from around tomography and choosing rock in crushed zone
Block sample；
S2 cuts sillar sample acquired around tomography, forms sample blank, and the sample blank is cube
Shape, and it is cut into sample crack；
The sillar chosen in crushed zone is crushed by S3, and cementing material is added in broken rock fragment, is fills up to sample
Sample is formed in the sample crack of blank；
The connection pressing plate that surface has the guide groove that liquid can be made to pass through is covered specimen surface, makes the liquid in guide groove by S4
Body is contacted with specimen surface；
Shrinkable sleeve is set to sample side by S5, and heating shrinks heat-shrink tube, after heat-shrink tube is shunk integral coating sample and
Connect pressing plate side；
S6 makes heat-shrink tube be close to connection pressing plate side and forms secondary seal in pyrocondensation pipe surface installation locking ring；
Sample is installed on triaxial tester, loads three groups of orthogonal normal pressures by S7；
S8, is added water in connection pressing plate guide groove, and adjustment triaxial tester pressure is tested.
Further, the broken granularity of sillar in S3 step are as follows: 125 μm are arrived 16mm.
The cementing material is clay and cement.
Triaxial tester of the invention carries out the laboratory experiment simulator of geological fault mechanical behavior, by pressing in connection
Guide groove is set on plate, water can be introduced into specimen surface, when triaxial tester is when three directions apply pressure, can make to try
Sample generates different stress in three directions, and adjusting all directions pressure can change the stress state of sample.It was testing
Cheng Zhong is applied to the pressure of the water of specimen surface in adjustable guide groove, to simulate nature state.
Axis tester of the invention carries out the laboratory experiment analogy method of geological fault mechanical behavior.Mould is needed by choosing
Quasi- tomography rock mass and fault belt rock mass chooses sillar sample from around tomography and in crushed zone, makes tested result
Limits close to nature.By cutting to sample, sample crack is formed, while using the rock chosen in crushed zone
Sample crack is filled after the broken addition cementing material of block, truer simulation nature.By to sample side table
Face is coated, then end face is allowed to contact with water, is finally loaded three direction stress to sample and is tested, can simulate nature shape
The rock mass environment of state.
Three groups of pressure heads of triaxial tester realize three-dimensional unequal stress environment, and true by the guide groove simulation on connection pressing plate
Seepage field in real situation can be realized and simulate to stress-seepage environment laboratory test locating for real tomography.
The laboratory experiment analogy method that axis tester of the invention carries out geological fault mechanical behavior can be simulated containing tomography
Three-dimensional unequal stress state locating for rock mass containing underground water provides one to the desk research method containing tomography rock mass containing underground water
The new thinking of kind.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is that the A-A of Fig. 1 is cutd open.
Fig. 4 is briquetting schematic diagram.
Fig. 5 is that the B-B of Fig. 4 is cutd open.
Fig. 6 is connection pressing plate schematic diagram.
Fig. 7 is that the C-C of Fig. 6 is cutd open
Fig. 8 cooperates schematic diagram with pressing plate is connect for briquetting.
Fig. 9 be sample with connect pressing plate combination schematic diagram.
Marked in the figure:
The left oil cylinder of 11-, the right oil cylinder of 12-, oil cylinder under 21-, 22- upper oil cylinder, oil cylinder before 31-, oil cylinder after 32-, 2201- upper cylinder half
Cylinder, the upper cylinder rod of 2202-, 2203- upper holder block, briquetting before 3103-, 2103- lower lock block, briquetting after 3203-, 4, support frame, 5- company
Pressing plate, the center 51- water hole are connect, 52- radiates guide groove, the first annular groove of 53-, the second annular groove of 54-, 55- outer cone boss, 56- sealing
Slot, 67- sealing ring, 6- internal taper hole, the limbers 7-, 8- connection screw thread, 9- retaining ring, 10- sample, 11- heat-shrink tube.
Specific embodiment
In conjunction with Fig. 1 to Fig. 9, a kind of triaxial tester of the invention carries out the laboratory experiment simulation of geological fault mechanical behavior
Device and method.
In order to achieve the above object, the solution that the present invention uses is: a kind of triaxial tester progress geological fault power
The laboratory experiment simulator that scholarship and moral conduct is, including support frame 4, three group oil cylinders are arranged on support frame 4 and oil cylinder axis vertical take-off is arranged,
Left oil cylinder 11 is coaxial with right oil cylinder 12 and cylinder rod is close to 4 center of support frame, and upper oil cylinder 22 is coaxial with lower oil cylinder 21 and cylinder rod is close
4 center of support frame, preceding oil cylinder 31 is coaxial with rear oil cylinder 32 and cylinder rod is close to 4 center of support frame；
Left briquetting is arranged in the cylinder rod end vertical of left oil cylinder 11, and right briquetting is arranged in the cylinder rod end vertical of right oil cylinder 12,
Upper holder block 2203 is arranged in the cylinder rod end vertical of upper oil cylinder 22, and lower lock block is arranged in the cylinder rod end vertical of lower oil cylinder 21
2103, briquetting 3103 before the cylinder rod end vertical of preceding oil cylinder 31 is arranged, briquetting after the cylinder rod end vertical setting of rear oil cylinder 32
3203。
Further, internal taper hole 6,7 one end of limbers and inner cone is arranged close to 4 center surface of support frame in all briquettings
Hole 6 penetrates through, and the other end extends to briquetting surface, and connection screw thread 8 is arranged close to briquetting surface end in limbers 7.
Further, connection pressing plate 5,5 surface of the connection pressing plate setting taper and the 6 taper phase of internal taper hole are also set up
Same outer cone boss 55, center water hole 51 of 55 axle center of the outer cone boss setting through connection pressing plate 5, the cone of outer cone boss 55
Seal groove 56 is set on face, sealing ring 67 is set in this seal groove 56 of institute, connection pressing plate 5 and 55 apparent surface of outer cone boss are arranged
The radiation guide groove 52 being connect with center water hole 51.
Cooperate by the way that internal taper hole 6 is arranged on briquetting, then with pressing plate 5 is connect, water can be introduced into 10 surface of sample,
The water with certain pressure can be introduced, can change experiment condition in this way.
It further, further include heat-shrink tube 11 and retaining ring 9, the connection pressing plate 5 is bonded with 10 end surfaces of sample, setting
Far from sample 10, heat-shrink tube 11,11 integral coating sample 10 of heat-shrink tube and company is arranged in 10 side surface of sample on outer cone boss 55 surface
5 side of pressing plate is connect, retaining ring 9 is arranged with 5 corresponding position of pressing plate is connect in 11 surface of heat-shrink tube.
In order to make sample 10, water is not overflowed when testing, is also wrapped to 10 side surface of sample with heat-shrink tube 11
It covers, increases retaining ring 9 in the place contacted with connection pressing plate 5, sealing effect can be further improved.
Further, two pieces is arranged in connection pressing plate 5, is respectively arranged at 10 apparent surface of sample, and two pieces connects outside pressing plate 5
Retaining ring 9 is respectively set in 11 surface of heat-shrink tube.
Connection pressing plate 5 can be individually set to a surface of sample 10, and two that sample 10 also can be set are opposite
Surface.When actually being tested, connection pressing plate 5 can be allowed to be in the position of upper and lower surfaces, if necessary may be used
To allow connection pressing plate 5 to be in the position of left and right or front-back.
Further, the surface of connection pressing plate 5 setting radiation guide groove 52 is additionally provided with annular guide channel, the annular guide channel with
Intersection is led in radiation.
Increase setting annular guide channel, the contact area of water Yu sample 10 can be increased, can according to need one ring of setting
Shape or multiple annular guide channels.
Further, the sealing ring 67 is O-ring.
Further, the oil cylinder is ram cylinder.
As shown in figure 3, upper oil cylinder forms ram cylinder by upper cylinder barrel 2201 and upper cylinder rod 2202.
The present invention also provides the laboratory experiment analogy method that a kind of triaxial tester carries out geological fault mechanical behavior, packets
Include following steps:
S1, choosing needs tomography rock mass to be simulated and fault belt rock mass, from around tomography and choosing rock in crushed zone
Block sample 10；
S2 cuts sillar sample 10 acquired around tomography, forms 10 blank of sample, and 10 blank of sample is
It is cube shaped, and it is cut into 10 crack of sample；
If there is fault surface degree of roughness when being cut require that steel wire cutter, water knife, laser knife can be selected
Equal cutting tools are cut to obtain the simulation fault rupture face of different degree of roughness；If wanting to be randomly derived different degree of roughness moulds
Intact rock compression shear, then can be gone out the simulation plane of disruption of random rough degree by quasi- fault rupture face by compression shear machine.
The sillar chosen in crushed zone is crushed by S3, and cementing material is added in broken rock fragment, is fills up to sample
Sample 10 is formed in 10 crack of sample of 10 blanks；
Filling thickness can be calculated according to the ratio of simulation tomography size and practical tomography size, carry out 10 maos of sample
Base just needs to produce 10 Fracture Width of sample appropriate as needed when production.It can by different cutting modes and not
The simulation tomography sample 10 of different fractal dimensions is made with filler.
The connection pressing plate 5 that surface has the guide groove that liquid can be made to pass through is covered 10 surface of sample, made in guide groove by S4
Liquid is contacted with 10 surface of sample；
S5 is set to 10 side of sample for 11 sets of heat-shrink tube, and heating shrinks heat-shrink tube 11, and heat-shrink tube 11 integrally wraps after shrinking
Cover sample 10 and connection 5 side of pressing plate；
By increasing heat-shrink tube 11 in side surface, entire osmotic system is made to be in sealing state.
S6 makes heat-shrink tube 11 be close to connection 5 side of pressing plate and forms secondary seal in 11 surface installation locking ring 9 of heat-shrink tube；
In conjunction with Fig. 8, after connection pressing plate 5 is contacted with briquetting, the internal taper hole on the outer cone boss 55 and briquetting on pressing plate 5 is connected
6 cooperations, while there are also the sealing functions of O-ring seals 67.The water in limbers 7 in briquetting can enter connection pressing plate 5
Surface, and will not leak out.The screw thread of 7 end of limbers is convenient to be connect with water source.
Sample 10 is installed on triaxial tester, loads three groups of orthogonal normal pressures by S7；
S8, is added water in connection 5 guide groove of pressing plate, and adjustment triaxial tester pressure is tested.
Further, the broken granularity of sillar in S3 step are as follows: 125 μm are arrived 16mm.
When being tested, it is boulderet that broken granularity, which can select 8~16mm, and 4~8mm is granule, 2~4mm
For superfine gravel, 1~2mm very coarse sand, 1/2~1mm coarse sand, 1/4~1/2mm is 125~250 μm of middle sand, 62.5~125 μm of fine sand
Very fine sand.
The broken granularity of selected sillar can according to need progress, can be according to thinking tomography to be simulated institute really
It is fixed, practical tomography width can be taken and taken with sample tomography width ratio for 0.0002.
The cementing material is clay and cement.In general, clay and cement weight ratio can take 1:0.1~100.
Claims (10)
1. the laboratory experiment simulator that a kind of triaxial tester carries out geological fault mechanical behavior, characterized in that including support
Frame, three group oil cylinders are arranged on support frame and oil cylinder axis vertical take-off is arranged, and left oil cylinder is coaxial with right oil cylinder and cylinder rod is close to support frame
Center, upper oil cylinder is coaxial with lower oil cylinder and cylinder rod is close to support frame center, and preceding oil cylinder is coaxial with rear oil cylinder and cylinder rod is close to support
Frame center；
Left briquetting is arranged in the cylinder rod end vertical of left oil cylinder, and right briquetting is arranged in the cylinder rod end vertical of right oil cylinder,
Upper holder block is arranged in the cylinder rod end vertical of upper oil cylinder, and lower lock block, the cylinder of preceding oil cylinder is arranged in the cylinder rod end vertical of lower oil cylinder
Boom end is vertically arranged preceding briquetting, briquetting after the cylinder rod end vertical setting of rear oil cylinder.
2. triaxial tester according to claim 1 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, internal taper hole is arranged close to support frame center surface in all briquettings, and limbers one end and internal taper hole penetrate through, the other end
Briquetting surface is extended to, connection screw thread is arranged close to briquetting surface end in limbers.
3. triaxial tester according to claim 2 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, also set up connection pressing plate, taper outer cone boss identical with the internal taper hole taper is arranged in the connection clamp surface,
Seal groove is arranged on the outer cone boss conical surface through the center water hole of connection pressing plate in the setting of outer cone boss axle center, this is close for institute
Sealing ring is set in sealing groove, and the radiation guide groove connecting with center water hole is arranged with outer cone boss apparent surface in connection pressing plate.
4. triaxial tester according to claim 3 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, further includes heat-shrink tube and retaining ring, the connection pressing plate is bonded with sample end surfaces, and setting outer cone boss surface is separate
Sample, sample side surface be arranged heat-shrink tube, heat-shrink tube integral coating sample and connection pressing plate side, pyrocondensation pipe surface with connect press
Retaining ring is arranged in plate corresponding position.
5. triaxial tester according to claim 5 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, two pieces is arranged in connection pressing plate, is respectively arranged at sample apparent surface, and two pieces connects the pyrocondensation pipe surface difference outside pressing plate
Retaining ring is set.
6. triaxial tester according to claim 5 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, the surface of connection pressing plate setting radiation guide groove is additionally provided with annular guide channel, and the annular guide channel is led with radiation to intersect.
7. triaxial tester according to claim 6 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, the sealing ring is O-ring.
8. triaxial tester according to claim 7 carries out the laboratory experiment simulator of geological fault mechanical behavior,
It is characterized in, the oil cylinder is ram cylinder.
9. a kind of triaxial tester carries out the laboratory experiment analogy method of geological fault mechanical behavior, it is characterized in that following steps:
S1, choosing needs tomography rock mass and fault belt rock mass to be simulated, tries from sillar is chosen around tomography and in crushed zone
Sample；
S2 cuts sillar sample acquired around tomography, formed sample blank, the sample blank be it is cube shaped,
And it is cut into sample crack；
The sillar chosen in crushed zone is crushed by S3, and cementing material is added in broken rock fragment, is fills up to sample blank
Sample crack in form sample；
Surface is had the connection pressing plate of guide groove that liquid can be made to pass through and covers specimen surface by S4, make liquid in guide groove with
Specimen surface contact；
Shrinkable sleeve is set to sample side by S5, and heating shrinks heat-shrink tube, integral coating sample and connection after heat-shrink tube is shunk
Pressing plate side；
S6 makes heat-shrink tube be close to connection pressing plate side and forms secondary seal in pyrocondensation pipe surface installation locking ring；
Sample is installed on triaxial tester, loads three groups of orthogonal normal pressures by S7；
S8, is added water in connection pressing plate guide groove, and adjustment triaxial tester pressure is tested.
10. triaxial tester according to claim 9 carries out the laboratory experiment analogy method of geological fault mechanical behavior,
It is characterized in, the broken granularity of sillar in S3 step are as follows: 125 μm are arrived 16mm.
The cementing material is clay and cement.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533635.0A CN110132746B (en) | 2019-06-19 | 2019-06-19 | Indoor experimental simulation device and method for performing geological fault mechanical behaviors by triaxial tester |
| PCT/CN2019/092316 WO2020048187A2 (en) | 2019-06-19 | 2019-06-21 | Indoor experiment simulation apparatus and method for triaxial tester to perform geological fault mechanical behaviour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533635.0A CN110132746B (en) | 2019-06-19 | 2019-06-19 | Indoor experimental simulation device and method for performing geological fault mechanical behaviors by triaxial tester |
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| Publication Number | Publication Date |
|---|---|
| CN110132746A true CN110132746A (en) | 2019-08-16 |
| CN110132746B CN110132746B (en) | 2024-05-10 |
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| CN201910533635.0A Active CN110132746B (en) | 2019-06-19 | 2019-06-19 | Indoor experimental simulation device and method for performing geological fault mechanical behaviors by triaxial tester |
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| WO (1) | WO2020048187A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596036A (en) * | 2020-06-23 | 2020-08-28 | 煤炭科学技术研究院有限公司 | Experimental simulation device and method for fault activation in coal seam mining |
| CN111594159A (en) * | 2020-06-12 | 2020-08-28 | 西南石油大学 | Device and method for testing flow line distribution in seepage process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814171B (en) * | 2022-05-12 | 2024-08-16 | 太原理工大学 | Device and method for preparing similar model for simulating heterogeneity of material composition of fault fracture zone |
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| WO2020048187A2 (en) | 2020-03-12 |
| WO2020048187A3 (en) | 2020-05-07 |
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