CN106124272B - A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device - Google Patents
A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device Download PDFInfo
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- CN106124272B CN106124272B CN201610621374.4A CN201610621374A CN106124272B CN 106124272 B CN106124272 B CN 106124272B CN 201610621374 A CN201610621374 A CN 201610621374A CN 106124272 B CN106124272 B CN 106124272B
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- 239000011435 rock Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 22
- 210000001503 Joints Anatomy 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims description 10
- 230000000875 corresponding Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 50
- 239000010959 steel Substances 0.000 abstract description 49
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000523 sample Substances 0.000 description 44
- 239000011083 cement mortar Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004904 shortening Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 231100001004 fissure Toxicity 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001066 destructive Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of analog material rock mass sample Among Intermittent Joints to be accurately positioned producing device, crack locating support bottom plate is arranged in parallel in the two sides of sample mould, it is anchored on sample preparation bottom plate by crack locating support anchor bolt, crack locating support is connect by screw thread with crack locating support bottom plate, crack radius rod is arranged in parallel with crack locating support bottom plate respectively and is fixed by screws on four crack locating supports, the groove of crack radius rod is positioned opposite, crack located lateral bar is stuck in the groove of crack radius rod by the located lateral bar sliding block at both ends, angle positioning device is stuck in the groove of crack located lateral bar lower end by top square slider, crack production is realized by angle positioning device lower end steel disc.Structure is simple, easy to operate, is effectively guaranteed the abundantization of the efficient production and crack form in crack, largely facilitates different crack rock intensity and deformational behavior test, rapidly makes the intermittent joints of specified parameter.
Description
Technical field
The present invention relates to Similar Material of Rockmass modeling techniques fields, are more particularly to one kind and are adjustable analog material rock
The geometric parameters such as body intermittent joints position, quantity, angle, length and aperture and the crack production dress that its parameter can be accurately positioned
It sets.The accurate positioning and production of different number and geometric format Among Intermittent Joints suitable for analog material rock mass sample.
Background technique
The cracks such as natural rock mass interrupting layer, joint have a significant impact to Mechanical property and engineering stability.On the one hand,
The process of deformation and failure of rock mass is substantially exactly the mistake of germinating, extension, interaction and perforation of the crack under the conditions of Engineering Disturbance
Journey, on the other hand, the complicated crack form of preservation changes rock mass stress in rock mass, further affects engineering rock mass
Failure mode and Instability.Therefore, the strength characteristic and failure mode for carrying out different crack form rock mass have stronger theory
Meaning and engineering value.
Crack rock laboratory test can be divided into true rock material and rock-like materials according to the difference of research object at present
Two classes.The selection of true rock material is so that test result is closer to engineering reality.But true rock mass specimen test is difficult
In repetition, and it is difficult to make various different cracks forms.Therefore, rock-like materials are widely used to simulate very in desk research at present
The physical mechanics behavior of real rock mass.In order to study geometric parameters of fissures to the affecting laws of rock mass strength and destructive characteristics, just need
The crack of different geometric formats and different number is made in same rock mass sample.In recent years, lot of domestic and international scholar
In the continuous accurate positioning and manufacturing technology promoted and develop crack in rock-like materials.It makes and fills in crack there are many scholar
It sets design aspect and has carried out a large amount of work, obtained many beneficial achievements and conclusion.
Existing crack producing device includes two kinds of fundamental types, first is that being inserted into steel disc directly in sample casting process
Mode, another kind are the making patterns of the pre-fixed perforation steel disc in sampling die.Above two mode exists
Shortcoming: 1. for first method, position can not be accurately positioned during steel disc is inserted into, to cause practical crack shape
Formula and setting parameter differences simultaneously cause subsequent theory analysis to generate deviation.Further, since the direction of insertion of steel disc is not fixed, pole
Steel disc offset from perpendicular and sample preparation during insertion is easily caused to fail；2. for second method, by fixing in advance
The method of steel disc is able to solve the uncertainty of first method crack manufacturing process, but limits crack quantity and position
Etc. parameters, generally require to remake whole set of die when above-mentioned parameter to be changed, cause waste of material.Of the present invention one
Kind analog material rock mass sample Among Intermittent Joints are accurately positioned producing device, can be accurately positioned crack position and are adjustable crack number
The geometric parameters such as amount, angle, length and aperture provide effective guarantee to make sample more accurately.
Summary of the invention
It is to be the provision of a kind of analog material rock mass examination it is a primary object of the present invention to improve the deficiency of above-mentioned technology
Sample Among Intermittent Joints are accurately positioned producing device, and structure is simple, easy to operate, can rapidly make the intermittent joints of specified parameter,
It is effectively guaranteed the abundantization of the efficient production and crack form in crack, largely facilitates different crack rock intensity and change
Shape behavior test.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device.It include: the first crack locating support,
Second crack locating support, the first crack radius rod, the second crack radius rod, crack located lateral bar and crack
Angle positioning device.It is characterized by: two groups of crack locating support bottom plates are arranged in parallel in the two sides of sample mould, and by splitting
Gap locating support anchor bolt is anchored on sample preparation bottom plate, for fixing radius rod.Four crack locating supports pass through
It connect and fixes with crack locating support bottom plate from threaded.The radius rod side is equipped with perforation groove along longitudinal direction,
Scale is equipped with above groove, as the located lateral bar sliding slot and it is positioned.Two groups of crack radius rods
It is arranged in parallel and is fixed by screws on four crack locating supports with two groups of crack locating support bottom plates respectively, wherein two groups
The groove of crack radius rod is positioned opposite.Crack located lateral bar is stuck in two groups by the located lateral bar sliding block at both ends and splits
In the T shape perforation groove of gap radius rod, and grooved tracks can be penetrated through along T shape and moved in parallel.Crack angle positioning device
Assembled by crack angle positioning sliding block, angle indicator, angle dial and telescopic rod, crack angle positioning sliding block and angle
Pointer is connected and fixed from threaded with angle dial by solid cylindrical rod.Telescopic rod is fixed on angle dial lower end center
Place, and telescopic rod lower end is provided with screw hole being connected and fixed for steel disc.Crack angle positioning device passes through apical cleft angle
Degree positioning sliding block is stuck among the crack angle positioning runner of crack located lateral bar lower end, and can be along crack angle positioning runner
Track is mobile.Transverse and longitudinal of the steel disc in sample mould can be changed by mobile crack located lateral bar and angle positioning device to sit
Mark, to realize the accurate positioning of crack position.It is specific: by slide the located lateral bar to crack longitudinal coordinate into
Row positioning, positions crack lateral coordinates by the crack angle positioning device for sliding described.The angle positions dress
It sets and is connect by crack angle positioning sliding block with crack located lateral bar, the cross in crack is determined by slip angle positioning device
To coordinate.The angle positioning device is equipped with pointer, and the pointer lower end is equipped with dials, together with the pointer
Determine crack angle.The dials lower end is equipped with telescopic rod, and steel disc is bolted on the telescopic rod.
The length of telescopic bar is adjusted, the steel disc can be fixed on mold bottom surface.
First crack locating support, the second crack locating support and the mold be arranged in parallel on one side and be respectively arranged in
Mold two sides, and by bolt by the first crack locating support, the second crack locating support bottom plate be anchored at floor it
On.The first crack locating support, the second crack locating support bottom plate upper end is equipped with a pair has certain depth containing internal screw thread
Screw hole, cradling piece is connected and fixed by the screw hole with bottom plate.Shown cradling piece upper end is equipped with screw thread, for connecting
Radius rod.The radius rod side is vertically set there are two through hole, penetrates through hole site and the branch
Hack lever is corresponding, and the cradling piece upper end passes through the vertical through-via of the radius rod, and is screwed, by institute
The radius rod stated is connect with the first crack locating support, the second crack locating support.The radius rod
The other side is equipped with T shape perforation groove along longitudinal direction, and scale is equipped with above groove, as the located lateral bar sliding slot and to it
It is positioned.First crack radius rod, the second crack radius rod parallel arrangement and the T connected in star is with respect to cloth
It sets, and is separately fixed at the first crack locating support, on the second crack locating support.The located lateral bar both ends are equipped with side
Shape sliding block is stuck among two radius rod sliding slots.The located lateral bar lower end is equipped with the T connected in star of perforation, recessed
Scale is equipped with above slot, as the crack angle positioning device sliding slot and it is positioned.
The crack angle positioning device is by crack angle positioning sliding block, angle indicator, dials and telescopic rod group
At.It is stuck among located lateral bar lower end crack angle positioning T shape sliding slot by the crack angle positioning sliding block and realizes institute
The connection of the angle positioning device and located lateral bar stated.There is the finger of fixed-direction in the crack angle positioning sliding block lower end
Needle, pointer have the dial that can be rotated together with steel disc, and by dial angle determined by pointer, can convert tapping
The angle of piece.The telescopic rod being fixed thereon is equipped with below the dial, simultaneously by the adjustable steel disc height of telescopic rod
Fixed steel disc, and dials can be allowed to rotate coaxially with steel disc.
The present invention is hung on above mold by crack locating support by crack steel disc is made, and by radius rod and
Located lateral bar is accurately positioned the transverse and longitudinal coordinate at the center of crack, accurately adjusts crack angle by angle positioning device.Mold
Component is all made of stainless steel material, and is bolted and fixes between bottom plate, crack locating support, radius rod,
Form unified whole, an enhancing system stability.
Compared with prior art, the present invention having the following advantages that and effect:
1. crack position is accurately positioned.Crack producing device of the present invention is fixed by radius rod, located lateral bar, angle
Position device and corresponding scale can be accurately positioned the steel disc central point transverse and longitudinal coordinate and angle for forming crack, so that
The production of rock cranny form is realized consistent with design.It can be by the transverse and longitudinal coordinate in crack and angle control in scale by above-mentioned apparatus
Within error in reading and transverse and longitudinal coordinate control errors are within 1mm, and angular error controls within 1 °.
2. controlling crack to deviate.The direction of insertion of prior art steel disc is not fixed, and easily causes steel disc in the mistake of insertion
Offset from perpendicular causes sample preparation to fail in journey, and the present invention controls steel disc direction of insertion by vertical telescopic bar and realizes that steel disc is solid
It is fixed, can effectively prevent steel disc during insertion offset from perpendicular the phenomenon that.Since telescopic rod has stronger rigidity, pass through
Controller verticality can fully control the vertical extent of steel disc, experiments have shown that, the present apparatus can control the vertical missing in crack
Within 1%.
3. complicated more crack production.The system in different geometric parameter crack can be realized by converting steel disc form in the present invention
Make.Particularly, crack situations more for production, can add located lateral bar in radius rod, can also be in same cross
Crack angle positioning device is added into locating rod, and the system of arbitrarily complicated crack form can be simply implemented by multiple combinations
Make, this is that all Among Intermittent Joints slit device institutes are irrealizable at present.Present invention design is exquisite, and for set sample preparation mould
Tool, crack locating support is not necessarily to disassembly after fixing, easy to operate, the geometry such as position, quantity, the direction in the accurate crack of energy
Parameter improves sample and is prepared into power.
Detailed description of the invention
Fig. 1 is that a kind of analog material rock mass sample Among Intermittent Joints are accurately positioned producing device structural schematic diagram.
Fig. 2 is a kind of crack locating support schematic diagram.
Fig. 3 is a kind of radius rod structural schematic diagram.
Fig. 4 is a kind of radius rod side view.
Fig. 5 is a kind of located lateral bar front view.
Fig. 6 is a kind of crack angle positioning device structure figure.
Fig. 7 is a kind of dial schematic diagram.
In figure, 1 is sample preparation bottom plate, and 2 be sample mould, and 3 be crack locating support bottom plate, and 4 anchor for crack locating support
Bolt, 5 be crack locating support bar, and 6 be crack radius rod, and 7 be crack located lateral bar, and 8 be crack angle positioning dress
It sets, 9 be crack locating support anchor hole, and 10 be crack radius rod anchor hole, and 11 crack longitudinal register scales, 12 be T
Shape penetrates through groove, and 13 located lateral bar sliding blocks, 14 crack positioning runners, 15 be crack angle positioning sliding block, and 16 be angle
Pointer, 17 be angle dial, and 18 be telescopic rod, and 19 be steel disc, and 20 be angle index.
Specific embodiment
Embodiment 1:
The invention will now be described in further detail with reference to the accompanying drawings.
A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device.It by sample preparation bottom plate 1, sample mould 2,
Crack locating support bottom plate 3, crack locating support anchor bolt 4, crack locating support bar 5, crack radius rod 6, crack
Located lateral bar 7, crack angle positioning device 8, crack locating support anchor hole 9, crack radius rod anchor hole 10, crack
Longitudinal register scale 11, T shape penetrate through groove 12, located lateral bar sliding block 13, crack angle positioning runner 14, crack angle positioning
Sliding block 15, angle indicator 16, angle dial 17, telescopic rod 18, steel disc 19, angle index 20 form.As shown in Figure 1, it connects
The relationship of connecing is: two groups of parallel arrangements of crack locating support bottom plate 3 pass through crack locating support anchor in the two sides of sample mould 2
Fixing bolt 4 is anchored on sample preparation bottom plate 1.Four crack locating supports 5 from threaded with crack locating support bottom plate 3 by connecting
It connects and fixes.Two groups of crack radius rods 6 are arranged in parallel and are screwed with two groups of crack locating support bottom plates 3 respectively
On four crack locating supports 5, wherein the groove of two groups of crack radius rods 6 is positioned opposite.Crack located lateral bar 7 is logical
The located lateral bar sliding block 13 for crossing both ends is stuck in the T shape perforation groove 12 of two groups of crack radius rods 6, and can be along T shape
It is mobile to penetrate through 12 parallel track of groove.Crack angle positioning device 8 is by crack angle positioning sliding block 15, angle indicator 16, angle
Dial 17 and telescopic rod 18 assemble, and crack angle positioning sliding block 15 and angle indicator 16 pass through the included spiral shell of solid cylindrical rod
Line is connected and fixed with angle dial 17.Telescopic rod 18 is fixed at 17 lower end center of angle dial, and 18 lower end of telescopic rod
It is provided with screw hole being connected and fixed for steel disc 19.Crack angle positioning device 8 passes through apical cleft angle positioning sliding block 15
It is stuck among the crack angle positioning runner 14 of 7 lower end of crack located lateral bar, and can be along 14 track of crack angle positioning runner
It is mobile.Transverse and longitudinal of the steel disc 19 in sample mould 2 can be changed by mobile crack located lateral bar 7 and angle positioning device 8
Coordinate, to realize the accurate positioning of crack position.
Apparatus of the present invention include two groups of crack locating supports, and every group of crack locating support is by crack locating support bottom plate 3, two
Root crack locating support anchor bolt 4 and two crack locating support bars 5 are formed by connecting.Wherein, crack locating support bottom plate 3 is logical
It crosses two crack locating support anchor bolts 4 to be anchored on sample preparation bottom plate 1, two crack locating support bars 5 are by carrying spiral shell
Line is symmetrically fixed on the two sides of crack locating support bottom plate 3, as shown in Figure 2.Correspondingly, apparatus of the present invention include that two groups of cracks are vertical
To locating rod 6, as shown in Figure 3,4, every group of 6 side of crack radius rod contain two bolts vertically penetrated through connection
Hole 10, position are corresponding with two crack 5 positions of locating support bar.Two crack locating support bars 5 are each passed through above-mentioned
Two bolt connecting holes 10 are simultaneously pre-tightened with screw, and realization crack radius rod 6 is connected and fixed with crack locating support.This hair
The production in more cracks may be implemented in bright device, and when making more cracks, multiple groups crack located lateral bar 7 and crack angle need to be arranged
Positioning device 8, mounting means are identical as one group of crack located lateral bar 7 and crack angle positioning device 8.As shown in figure 5, splitting
7 both ends of gap located lateral bar include two square sliders 13, and lower end is the crack angle positioning runner 14 transversely penetrated through.It splits
Gap located lateral bar 7 is arranged between two groups of crack radius rods 6 and both ends square slider 13 can be respectively clamped into two groups of cracks
Among the T shape perforation groove 12 of radius rod 6, realizes the installation of crack located lateral bar 7 and penetrate through groove 12 certainly along T shape
By moving.As shown in fig. 7, crack angle positioning device 8 is by crack angle positioning sliding block 15, angle indicator 16, angle dial
17 and telescopic rod 18 assemble.Wherein, 15 lower end of crack angle positioning sliding block is solid cylinder connecting rod and from threaded, angle
Degree pointer 16 is welded on solid cylinder body rod center.There is certain depth band internal screw thread circular hole at 17 center of angle dial, with crack
15 lower end solid cylinder connecting rod of angle positioning sliding block is corresponding.Crack angle positioning sliding block 15 and angle indicator 16 pass through filled circles
Mast is connected and fixed from threaded with angle dial 17.Telescopic rod 18 is fixed at 17 lower end center of angle dial, and is stretched
18 lower end of contracting bar is provided with screw hole being connected and fixed for steel disc 19.Pass through adjustable 19 institute of steel disc of stretching of telescopic rod 18
It in height and realizes the fixation of crack in a mold, drives angle dial 17 to rotate by rotation steel disc 19, and pass through angle
Pointer 16 accurately determines angle locating for crack.By sliding located lateral bar 7, steel disc 19 can be driven to slide along longitudinal direction, and lead to
It crosses crack longitudinal register scale 11 and accurately determines 19 central point longitudinal coordinate of steel disc.It, can by sliding crack angle positioning device 8
To drive steel disc 19 to slide along the transverse direction, and steel disc central point lateral coordinates are accurately determined by crack located lateral scale.
Specific implementation process:
1, Single Fracture sample
Use rocks specimen size for 60mm × 40mm × 120mm, sample material uses cement mortar, prefabricated crack class
Type is perforation Single Fracture, and crack center is located at sample center, 45 °, length 20mm, thickness 0.1mm of inclination angle.Making this crack needs
Two groups of crack locating supports, two groups of 6, one groups of crack radius rod, 7, one groups of crack located lateral bar crack angle positioning devices
8 and crack make steel disc.A kind of analog material rock mass sample Among Intermittent Joints are accurately positioned producing device application method and tool
Body step are as follows:
(1) 2 group of crack locating support bottom plate 3 is arranged in parallel, and is positioned crack by crack locating support anchor bolt 4
Bracket bottom plate 3 is anchored on sample preparation bottom plate 1；
(2) crack locating support bar 5 is fixed on crack locating support bottom plate 3, and two groups of cracks are longitudinally fixed
Position bar 6 is fixed on crack locating support bar 5, and cross crack is caught in two groups of cracks relatively disposed in parallel to locating rod 7 and is indulged
It is caught in the groove 14 under crack located lateral bar 7 among locating rod 6, and by crack angle positioning device 8；
(3) it is poor that the distance between sample lower left corner angle point and lateral longitudinal rod scale zero in sampling die are measured；
(4) crack located lateral bar 7 and crack angle positioning device 8 are slided, measures its scale value in step (3)
60mm and 30mm are increased separately on the basis of range difference, rotates steel disc 19, and adjustment crack angle is 45 ° and fixes；
(5) after mixing evenly by the cement mortar centainly matched, it is poured slowly into mold and sufficiently vibrates and strike off, then adjust
Above-mentioned determining good position and the steel disc 19 of angle are vertically inserted into the cement mortar before solidification by whole length of telescopic bar,
Make it completely through then shortening length of telescopic bar, extract steel disc, outside mobile crack located lateral bar 7 to die region；
(6) after sample forms completely, demoulding simultaneously takes out the sample made, and maintenance extremely designs under the conditions of corresponding
Age；
(7) after sample conserves, coordinate and crack actual angle at the center of sample positive and negative two sides crack is measured and is used to
The difference and crack for screening crack and design geometric parameters of fissures that actual fabrication goes out deviate situation.Experiments have shown that passing through this
The crack error of coordinate that device is produced can control within 1mm, and angular error can control within 1 °, vertical missing control
System is within 1%.
2, three crack sample
Use rocks specimen size for 60mm × 40mm × 120mm, sample material uses cement mortar, prefabricated crack class
Type is three cracks of perforation, and using the sample lower left corner as coordinate origin, 1 center of crack is located at sample center, with horizontal direction inclination angle
45 °, length 20mm, thickness 0.2mm, 2 transverse and longitudinal coordinate of crack is respectively 40mm and 80mm, with 30 ° of horizontal direction inclination angle, length
20mm, thickness 0.1mm, 3 transverse and longitudinal coordinate of crack is respectively 20mm and 50mm, with 90 °, length 10mm of horizontal direction inclination angle, thickness
0.1mm.Make this crack need two groups of crack locating supports, two groups of crack radius rods, 6, one groups of crack located lateral bars 7,
Three groups of crack angle positioning device 8 and 3 piece cracks make steel disc.A kind of analog material rock mass sample Among Intermittent Joints accurate positioning system
Make device application method and specific steps are as follows:
(1) 2 group of crack locating support bottom plate 3 is arranged in parallel, and is positioned crack by crack locating support anchor bolt 4
Bracket bottom plate 3 is anchored on sample preparation bottom plate 1；
(2) on the telescopic rod that three groups of steel discs are separately fixed in three groups of crack angle positioning device 8, three groups of fracture angles
Degree positioning device 8 respectively corresponds crack 1, crack 2 and crack 3；
(3) crack locating support bar 5 is fixed on crack locating support bottom plate 3, and two groups of cracks are longitudinally fixed
Position bar 6 is fixed on crack locating support bar 5, and cross crack is caught in two groups of cracks relatively disposed in parallel to locating rod 7 and is indulged
It is caught in the groove 14 under crack located lateral bar 7 among locating rod 6, and by first group of crack angle positioning device 8；
(4) it is poor that the distance between sample lower left corner angle point and lateral longitudinal rod scale zero in sampling die are measured；
(5) crack located lateral bar 7 and first group of crack angle positioning device 8 are slided, makes its scale value in step (4)
60mm and 30mm are increased separately on the basis of measured range difference, rotates steel disc 19, and adjustment crack angle is 45 ° and fixes；
(6) after mixing evenly by the cement mortar centainly matched, it is poured slowly into mold and sufficiently vibrates and strike off, then adjust
Above-mentioned determining good position and the steel disc 19 of angle are vertically inserted into the cement mortar before solidification by whole length of telescopic bar,
Make it completely through then shortening length of telescopic bar, extract steel disc, outside mobile crack located lateral bar 7 to die region；
(7) first group of crack angle positioning device 8 is removed, second group of crack angle positioning device 8 is caught in crack transverse direction
In groove 14 under locating rod 7, crack located lateral bar 7 and second group of crack angle positioning device 8 are slided, its scale value is made to exist
80mm and 40mm are increased separately in step (4) on the basis of measured range difference, rotates steel disc 19, adjusts crack angle as 0 ° simultaneously
It is fixed.Length of telescopic bar is adjusted, above-mentioned determining good position and the steel disc 19 of angle are vertically inserted into the cement before solidification
In mortar, make it completely through then shortening length of telescopic bar, extract steel disc, mobile crack located lateral bar 7 arrives die region
Outside；
(8) second group of crack angle positioning device 8 is removed, third group crack angle positioning device 8 is caught in crack transverse direction
In groove 14 under locating rod 7, crack located lateral bar 7 and third group crack angle positioning device 8 are slided, its scale value is made to exist
50mm and 20mm are increased separately in step (4) on the basis of measured range difference, rotates steel disc 19, adjustment crack angle is 90 °
And it is fixed.Length of telescopic bar is adjusted, above-mentioned determining good position and the steel disc 19 of angle are vertically inserted into the water before solidification
In cement mortar, make it completely through then shortening length of telescopic bar, extract steel disc, mobile crack located lateral bar 7 arrives die region
Outside；
(9) after sample forms completely, demoulding simultaneously takes out the sample made, and maintenance extremely designs under the conditions of corresponding
Age；
(10) after sample conserves, coordinate and crack actual angle at the center of sample positive and negative two sides crack is measured and is used to
The difference and crack for screening crack and design geometric parameters of fissures that actual fabrication goes out deviate situation.Experiments have shown that passing through this
The crack error of coordinate that device is produced can control within 1mm, and angular error can control within 1 °, vertical missing control
System is within 1%.
Claims (2)
1. a kind of analog material rock mass sample Among Intermittent Joints are accurately positioned producing device, it includes sample preparation bottom plate (1), sample mould
(2), crack locating support bottom plate (3), crack locating support anchor bolt (4), crack locating support bar (5), crack are longitudinally fixed
Position bar (6), crack located lateral bar (7), crack angle positioning device (8), crack locating support anchor hole (9), crack are longitudinal
Locating rod anchor hole (10), T shape penetrate through groove (12), located lateral bar sliding block (13), crack angle positioning runner (14), crack
Angle positioning sliding block (15), it is characterised in that: the two of two groups of crack locating support bottom plates (3) parallel arrangement and sample mould (2)
Side is anchored on sample preparation bottom plate (1) by crack locating support anchor bolt (4), and four crack locating support bars (5) pass through spiral shell
Line is connect with crack locating support bottom plate (3), and every group of crack radius rod (6) side is contained two and vertically penetrated through
Crack radius rod anchor hole (10), position is corresponding with two crack locating support bar (5) positions, and two cracks are determined
Position cradling piece (5) is each passed through above-mentioned two cracks radius rod anchor hole (10) and is pre-tightened with screw, and two groups of cracks are longitudinal
Locating rod (6) is connect with crack locating support bar (5) respectively, wherein the groove of two groups of crack radius rods (6) is positioned opposite,
Crack located lateral bar (7) is passed through by the T shape that the located lateral bar sliding block (13) at both ends is stuck in two groups of crack radius rods (6)
In logical groove (12), crack angle positioning device (8) is by crack angle positioning sliding block (15), angle indicator (16), angle index
Disk (17) and telescopic rod (18) assembling, crack angle positioning sliding block (15) lower end are solid cylinder connecting rod and from threaded, angle
Degree pointer (16) is welded on solid cylinder body rod center, and there is certain depth band internal screw thread circular hole at angle dial (17) center, with
Crack angle positioning sliding block (15) lower end solid cylinder connecting rod is corresponding, crack angle positioning sliding block (15) and angle indicator (16)
It is connect from threaded with angle dial (17) by solid cylindrical rod, telescopic rod (18) is fixed under angle dial (17)
End, crack located lateral bar (7) lower end have the protruding portion extended transversely, and crack angle positioning runner (14) transversely penetrates through
Protruding portion, crack angle positioning device (8) are stuck under crack located lateral bar (7) by apical cleft angle positioning sliding block (15)
In the crack angle positioning runner (14) at end.
2. a kind of analog material rock mass sample Among Intermittent Joints according to claim 1 are accurately positioned producing device, feature
Be: the device includes two groups of crack locating supports, and every group of crack locating support is by crack locating support bottom plate (3), two
Root crack locating support anchor bolt (4) crack He Ergen locating support bar (5) connection, wherein crack locating support bottom plate (3)
It is anchored on sample preparation bottom plate (1) by two crack locating support anchor bolts (4), two crack locating support bars (5) pass through
Screw thread is symmetrically fixed on the two sides of crack locating support bottom plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621374.4A CN106124272B (en) | 2016-08-02 | A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610621374.4A CN106124272B (en) | 2016-08-02 | A kind of analog material rock mass sample Among Intermittent Joints accurate positioning producing device |
Publications (2)
| Publication Number | Publication Date |
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| CN106124272A CN106124272A (en) | 2016-11-16 |
| CN106124272B true CN106124272B (en) | 2019-07-16 |
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