CN108896359A - A kind of crack fabricated device - Google Patents
A kind of crack fabricated device Download PDFInfo
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- CN108896359A CN108896359A CN201810453945.7A CN201810453945A CN108896359A CN 108896359 A CN108896359 A CN 108896359A CN 201810453945 A CN201810453945 A CN 201810453945A CN 108896359 A CN108896359 A CN 108896359A
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Abstract
The invention discloses a kind of crack fabricated devices, including squeeze grip (601), elastic interlayer pedestal (602) and be disposed there between, the squeeze grip (601) is cuboid, it is connected between the squeeze grip (601) and the pedestal (602) by multiple Elastic plastic-rubbers (603), and there is certain interval between the squeeze grip (601) and the pedestal (602), form the elastic interlayer；The crack fabricated device includes multiple crack preparing department, and the crack preparing department includes fixing axle (604), boosting blade (605), crack blade (606) and slideway (607).Crack fabricated device of the invention has the function of quick prefabricated different type crack, has the advantages that at low cost, speed is fast, experimental efficiency is high.
Description
Technical field
The present invention relates to coal mine and education sectors, more particularly to a kind of crack fabricated device.
Background technique
The crack generated in rock due to the influence of geologic process.The crack due to caused by crustal movement, referred to as
" structural fracture "；The crack due to caused by slacking, referred to as " weathering fissures " (belong to " secondary interstice ")；It is condensed in igneous rock
The crack generated in the process and during deposit is solidified into rock, referred to as " diagenesis crack ".The crack of study of rocks is to seeking
Mineral products and hydrogeology, engineering geology are looked for all to have important practical significance, in analog simulation test, prefabricated crack is for height
Degree reduction practical condition plays an important role；
Patent 201610666831.1 provide a kind of three-dimensional discontinuously perforation crack producing device of cuboid rock sample and
Method, can be realized the multi-faceted three-dimensional adjustment of true rock sample, and the production requirement for meeting perforation crack is led at the same time
The cooperation for crossing electronic silk saw componet and Fracture Width control assembly, completes different item numbers, and different angle, different in width are discontinuously prefabricated
The production in crack；Patent 201410052815.4 provides a kind of production method of random fissure rock sample, using tin bar and
Mortar material is mixed, and ensure that the production in a large amount of random crack of fissure rock, convenient for adjusting the probability density distribution in crack
It is seldom for the crack fabricated device research in three-dimensional analog simulation at present.
Summary of the invention
A kind of the technical problem to be solved in the present invention is to provide structures simple, at low cost, the easy to operate prefabricated dress in crack
It sets.
A kind of crack fabricated device, it is characterised in that：Including squeeze grip, pedestal and the elastic clip being disposed there between
Layer, the squeeze grip are cuboid, including four the first side walls and top plate, and the pedestal is cuboid, including four second
Side wall and bottom plate are connected between the squeeze grip and the pedestal by multiple Elastic plastic-rubbers, and the squeeze grip and institute
Stating has certain interval between pedestal, form the elastic interlayer；The crack fabricated device includes multiple crack preparing department,
The crack preparing department includes fixing axle, boosting blade, crack blade and slideway；
The fixing axle is located at the inside of the squeeze grip, and both ends are separately fixed at described positioned at front side and rear side
In one side wall, the slideway is the hollow structure of strip, is fixed in the pedestal, and the slideway is two, is respectively set
In the left and right sides of the fixing axle, the boosting blade is two, and upper end is connected in the fixing axle, each boosting
The lower end of blade is respectively connected with a crack blade, and the crack blade is applied in the slideway；
The crack fabricated device includes the first control shaft, the second control shaft, third control shaft and the 4th control shaft, described
First control shaft is connected with the lower end of the slideway positioned at left side of all crack preparing department, the third control shaft and all
The upper end of the slideway positioned at left side of crack preparing department is connected, and in the left side of the pedestal, there are two first through hole for setting, described
The left end of first control shaft and the third control shaft is helicitic texture, is pierced by from two first through hole respectively, in institute
The left end for stating the first control shaft and the third control shaft is provided with nut, second control shaft and all crack preparing department
The lower end of the slideway positioned at right side be connected, the slideway positioned at right side of the 4th control shaft and all crack preparing department
Upper end is connected, and on the right side of the pedestal, setting is there are two the second through-hole, second control shaft and the 4th control shaft
Right end is helicitic texture, is pierced by from two second through-holes respectively, in second control shaft and the 4th control shaft
Right end be provided with nut；Multiple long stripes through holes passed through for the crack blade are provided on the bottom plate of the pedestal.
Crack fabricated device of the present invention, wherein a length of 800mm of the top plate of the squeeze grip, width are
The height of 200mm, thickness 45mm, the first side wall are 55mm, and material is plastics；The bottom plate of the pedestal it is a length of
800mm, width 200mm, thickness 200mm, the height of the second sidewall are 15mm；The height of the Elastic plastic-rubber is 200mm,
Anterior-posterior length is 200mm, and left and right width is 20mm, and compression zone is less than 100mm under 10kg pressure.
Crack fabricated device of the present invention, wherein upper and lower a length of 140mm of the boosting blade, thickness 3mm, it is preceding
Width is 200mm, upper and lower a length of 300mm of the crack blade, thickness 1.5mm afterwards, and front and back width is 200mm；The length of the slideway
For 150mm, wall thickness 2mm, front and back width is 200mm, hollow with a thickness of 3.5mm；The boosting blade, the crack blade and
The material of the slideway is iron.
Crack fabricated device of the present invention, wherein first control shaft, second control shaft, the third
The length of the helicitic texture of control shaft and the 4th control shaft is 30-100mm.
A kind of production method carrying out Λ type crack using crack fabricated device of the present invention, includes the following steps：
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
According to the requirement for the fracture density that experiment is formulated, by rotating the nut of the first control shaft and the second control shaft, essence
True expansion reduces slideway in the distance of pedestal exposed portion, reaches experiment demand, as the density in requirement of experiment crack is
20 groups/rice, then the spacing in every group of crack is 0.05m, then needs to guarantee that same group of slideway is in the spacing of pedestal exposed portion
0.05m；
According to the requirement for the crack angle that experiment is formulated, by rotating the nut of third control shaft and the 4th control shaft, essence
The angle of true control crack blade, specific angle can measure the blade exposed in pressing, first pass through rotation the
The nut of one control shaft and the second control shaft reaches the requirement of experiment fracture density, then passes through rotation third control shaft and the 4th
The nut of control shaft is accurately controlled the angle of crack blade, reaches the requirement of crack angle；
The crack fabricated device adjusted be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip, according to
Test formulate crack length requirement, the distance pressed down be equal to crack length, precision controlling within 10mm,
It can't allow crack fabricated device that lateral sliding occurs in whole process, then slowly discharge squeeze grip, withdraw crack
Blade；Crack fabricated device is picked up, it is pre- to put down crack at the distance for moving a crack spacing along device length direction
Device processed, i.e. L, be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip, according to experiment formulate crack length
Requirement, the distance pressed down is equal to the length in crack, and precision equally controls within 10mm, cut not in whole process
It can allow crack fabricated device that lateral sliding occurs, then slowly release, in this way, completing the pre- of one, Λ type crack model value
System completes the prefabricated amount in multiple model cracks according to the area that experiment needs in the manner described above.
Fabricated device difference from prior art in crack of the present invention is：
Crack fabricated device of the present invention can give the crack of the prefabricated needs in rock stratum above coal seam in analog simulation test,
It is caving with being more advantageous to rock according to the mode being actually caving, this is all greatly to protect for the precision and science of experimental result
Card；
Crack fabricated device of the present invention can be such that the angle in crack controls by the adjusting of screw and reach high-precision rank；
Crack fabricated device of the present invention can adjust different length according to actual needs；
Crack fabricated device of the present invention can replace or design the blade for needing thickness, guarantee to split according to actual needs
The thickness of gap；
Crack fabricated device of the present invention it is prefabricated can to complete different types of crack according to experiment demand；
Crack fabricated device of the present invention is simple and quick, scientific and reasonable, at low cost, high-efficient.
Crack fabricated device of the invention is described further with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of crack fabricated device of the present invention.
Specific embodiment
Crack fabricated device of the invention is used in the analog simulation device in coal mine teaching and test, underground mining engineering
The original original stress equilibrium state in underground is changed, with the increase of the underground space, cover stress field is towards direction of propulsion and upwards
Transmitting, the effect of first weighting and periodic weighting in addition, in each stress transfer and reassignment, overlying strata one given layer band model
Rock stratum in enclosing forms some secondary interstices, provides power every time to press the generation that can all give these cracks and extend.It passes
The simulation test with similar mat-erial of system is tested due to the model dimension that is put to the test, the limitation on boundary, loading device, can usually be thereby resulted in
The phenomenon that test result does not match with Practical Project, prefabricated small arch crack, shows to make up normal production model to press
The insufficient situation of the middle power for generating crack is more in line with the situation that is caving of top plate in reality production in this way, corresponding to measure
Test in the structure that is caving of stress variation and rock stratum it is also more scientific reliable.
As shown in Figure 1, crack fabricated device of the present invention includes squeeze grip 601, pedestal 602 and is disposed there between
Elastic interlayer, squeeze grip 601 are cuboid, including four the first side walls and top plate, and pedestal 602 is cuboid, including four
Second sidewall and bottom plate are connected between squeeze grip 601 and pedestal 602 by multiple Elastic plastic-rubbers 603, and squeeze grip 601
There is certain interval between pedestal 602, form elastic interlayer；Crack fabricated device includes multiple crack preparing department, crack
Preparing department includes fixing axle 604, boosting blade 605, crack blade 606 and slideway 607；
Fixing axle 604 is located at the inside of squeeze grip 601, and both ends are separately fixed at the first side wall positioned at front side and rear side
On, slideway 607 is the hollow structure of strip, is fixed in pedestal 602, and slideway 607 is two, is separately positioned on fixing axle
604 left and right sides, boosting blade 605 are two, and upper end is connected in fixing axle 604, and the lower end of each boosting blade 605 is equal
It is connected with a crack blade 606, crack blade 606 is applied in slideway 607；
Crack fabricated device includes the first control shaft 609, the second control shaft 610, third control shaft 612 and the 4th control shaft
613, the first control shaft 609 is connected with the lower end of the slideway 607 positioned at left side of all crack preparing department, third control shaft
612 are connected with the upper end of the slideway 607 positioned at left side of all crack preparing department, there are two the settings of the left side of pedestal 602
The left end of first through hole, the first control shaft 609 and third control shaft 612 is helicitic texture, is worn from two first through hole respectively
Out, the left end of the first control shaft 609 and third control shaft 612 is provided with nut 611, the second control shaft 610 is split with all
The lower end of the slideway 607 positioned at right side of gap preparing department is connected, and the 4th control shaft 613 is located at the right side with all crack preparing department
The upper end of the slideway 607 of side is connected, and on the right side of pedestal 602, there are two the second through-hole, the second control shaft 610 and the 4th controls for setting
The right end of axis 613 processed is helicitic texture, is pierced by from two the second through-holes respectively, in the second control shaft 610 and the 4th control shaft
613 right end is provided with nut 611；It is logical that multiple strips passed through for crack blade 606 are provided on the bottom plate of pedestal 602
Hole.
The top plate of squeeze grip 601 a length of 800mm, width 200mm, thickness 45mm, the height of the first side wall are 55mm, material
Matter is plastics；A length of 800mm of the bottom plate of pedestal 602, width 200mm, thickness 200mm, the height of second sidewall are 15mm；Bullet
Property plastic cement 603 height be 200mm, anterior-posterior length 200mm, left and right width be 20mm, compression zone is less than under 10kg pressure
100mm；
Upper and lower a length of 140mm of boosting blade 605, thickness 3mm, front and back width are 200mm, and boosting blade 605 can press
When handle 601 moves down, change the angle of itself, thus the side that crack blade 606 is extruded without changing crack blade 606
To or extremely small change angle but do not influence to use；
Upper and lower a length of 300mm of crack blade 606, thickness 1.5mm, front and back width are 200mm；Slideway 607 it is a length of
150mm, wall thickness 2mm, front and back width is 200mm, hollow with a thickness of 3.5mm；Boosting blade 605, crack blade 606 and slideway
607 material is iron；
The helicitic texture of first control shaft 609, the second control shaft 610, third control shaft 612 and the 4th control shaft 613
Length is 30-100mm.The direction of the slideway 607 in left side is biased in the control of first control shaft 609, and the control of the second control shaft 610 is biased to
The direction of the slideway 607 on right side；The offset distance of the slideway 607 in left side is biased in the control of third control shaft 612；4th control shaft
The offset distance of the slideway 607 on right side is biased in 613 controls.
The production method that crack of various shapes is carried out using crack fabricated device of the invention：
Λ type crack：
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
According to the requirement for the fracture density that experiment is formulated, by the spiral shell for rotating the first control shaft 609 and the second control shaft 610
Mother 611, it is accurate to expand or reduce slideway 607 in the distance of 602 exposed portion of pedestal, reach experiment demand, as experiment is wanted
The density for asking crack is 20 groups/rice, then the spacing in every group of crack is 0.05m, then needs to guarantee same group of slideway 607 in pedestal
The spacing of 602 exposed portion is 0.05m；
According to the requirement for the crack angle that experiment is formulated, by the spiral shell for rotating third control shaft 612 and the 4th control shaft 613
Mother 611 is accurately controlled the angle of crack blade 606, and specific angle can measure the blade exposed in pressing, first
By rotating the nut 611 of the first control shaft 609 and the second control shaft 610, reach the requirement of experiment fracture density, then pass through rotation
The nut 611 for turning third control shaft 612 and the 4th control shaft 613 is accurately controlled the angle of crack blade 606, reaches crack
The requirement of angle；
The crack fabricated device adjusted be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, press
The requirement for according to the facts testing the crack length of formulation, the distance pressed down are equal to the length in crack, and precision controlling is within 10mm
Can, it can't allow crack fabricated device that lateral sliding occurs in whole process, then slowly discharge squeeze grip 601, receive
Return crack blade 606；Crack fabricated device is picked up, is put at the distance for moving a crack spacing along device length direction
Lower crack fabricated device, i.e. L, be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, according to experiment make
The requirement of fixed crack length, the distance pressed down are equal to the length in crack, and precision equally controls within 10mm, whole
It can't allow crack fabricated device that lateral sliding occurs during a, then slowly release, in this way, completing Λ type crack one
A model value it is prefabricated, according to experiment need area, complete the prefabricated amount in multiple model cracks in the manner described above.
V-type crack：
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
According to the requirement for the crack angle that experiment is formulated, by the spiral shell for rotating third control shaft 612 and the 4th control shaft 613
Mother 611 is accurately controlled the angle of crack blade 606, and specific angle can measure the blade exposed in pressing, first
By rotating the nut 611 of the first control shaft 609 and the second control shaft 610, reach the requirement of experiment fracture density, then pass through rotation
The nut 611 for turning third control shaft 612 and the 4th control shaft 613 is accurately controlled the angle of crack blade 606, reaches crack
The requirement of angle；
According to the requirement of crack length, crack fabricated device is debugged, presses squeeze grip 601 downwards, distance is wanted for crack
Length is sought, whether the crack blade 606 seen in the every crack Liang Zu preparing department middle slideway 607 is overlapped when coming out, when being just overlapped
Reach requirement, the process of this debugging is mainly the nut 611 for passing through rotation the first control shaft 609 and the second control shaft 610, essence
Distance of the true expansion or reduction slideway 607 in 602 exposed portion of pedestal achieves the goal；
By crack fabricated device be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, according to experiment
The requirement of the crack length of formulation, the distance pressed down are equal to the length in crack, and precision controlling is within 10mm, entirely
It can't allow crack fabricated device that lateral sliding occurs in the process, then slowly discharge squeeze grip 601, withdraw crack knife
Piece 606；In this way, completing the prefabricated of one, Λ type crack model value, according to the area that experiment needs, complete in the manner described above more
The prefabricated amount in a model crack；
W type crack：
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
According to the requirement of crack length, crack fabricated device is debugged, presses squeeze grip 601 downwards, distance is wanted for crack
Length is sought, whether the crack blade 606 seen in the every crack Liang Zu preparing department middle slideway 607 is overlapped when coming out, when being just overlapped
Reach requirement, specific adjustment process is the nut 611 for rotating the first control shaft 609 and the second control shaft 610, it is accurate expand or
Person reduces slideway 607 in the distance of 602 exposed portion of pedestal；
By crack fabricated device be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, according to experiment
The requirement of the crack length of formulation, the distance pressed down are equal to the length in crack, and precision controlling is within 10mm, entirely
It can't allow crack fabricated device that lateral sliding occurs in the process, then slowly discharge squeeze grip 601, withdraw crack knife
Piece 606；Crack fabricated device is picked up, puts down and splits at the distance for moving half of W type slotted opening along device length direction
Gap fabricated device；Slowly at the uniform velocity press squeeze grip 601, according to experiment formulate crack length requirement, press down
Distance is equal to the length in crack, and precision equally controls within 10mm, can't allow crack fabricated device in whole process
Lateral sliding occurs, then slowly release needs in this way, completing the prefabricated of one, W type crack model value according to experiment
Area completes the prefabricated amount in multiple model cracks in the manner described above.
M type crack：
The prefabricated most important process of M type gap is the distance L that M type slotted opening is determined before experimentMWith the spacing L in crack,
According to the distance in every group of crack in the spacing in crack L, that is, crack fabricated device, specific adjustment process is by the first control of rotation
The nut 611 of axis 609 processed, the second control shaft 610, third control shaft 612 and the 4th control shaft 613, nut 611 is in pedestal 602
On rotation can change the distance in every group of crack；
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
By crack fabricated device be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, according to experiment
The requirement of the crack length of formulation, the distance pressed down are equal to the length in crack, and precision controlling is within 10mm, entirely
It can't allow crack fabricated device that lateral sliding occurs in the process, then slowly discharge squeeze grip 601, withdraw crack knife
Piece 606；Crack fabricated device is picked up, at the distance for moving half of M type slotted opening along device length direction, i.e. LM/
2, put down crack fabricated device；Slowly at the uniform velocity press squeeze grip 601, according to experiment formulate crack length requirement, it is past
The distance of lower pressing is equal to the length in crack, and precision equally controls within 10mm, can't allow crack in whole process
Lateral sliding occurs for fabricated device, then slowly discharges squeeze grip 601, withdraws crack blade 606；By the prefabricated dress in crack
It sets and picks up, continuing to move to (L-L along the direction moved just nowM/ 2) distance puts down crack fabricated device；Slowly at the uniform velocity
Squeeze grip 601 is pressed, according to the requirement for the crack length that experiment is formulated, the distance pressed down is equal to the length in crack, essence
Then the same control of degree slowly discharges squeeze grip 601, withdraws crack blade 606 within 10mm；Crack is prefabricated
Device is picked up, and continues to move to L moving along directionM/ 2 distance puts down crack fabricated device；Slowly at the uniform velocity press pressing
Handle 601, according to the requirement for the crack length that experiment is formulated, the distance pressed down is equal to the length in crack, and precision is equally controlled
System can't allow crack fabricated device that lateral sliding occurs within 10mm in whole process, then slowly release,
In this way, completing the prefabricated of one, M type crack model value, according to the area that experiment needs, multiple models are completed in the manner described above
The prefabricated amount in crack.
The crack wave line style WWWWWWW：
The prefabricated most important process of wave line style gap is the distance of determining W type slotted opening in the early stage, has been determined out
Mouth distance, adjusts the distance between slideway 607 of each group of crack preparing department, and its spacing is made to be equal to half of W type slotted opening
Distance；Meanwhile according to the requirement of crack length, the distance between each group of crack is adjusted, presses squeeze grip 601 downwards, away from
Length is required from for crack, whether the crack blade 606 seen in the every crack Liang Zu preparing department middle slideway 607 is overlapped when coming out, and adjusts
It is whole to be overlapped when reach second requirement；When the two require all to complete, fabricated device adjustment in crack is finished, specific to adjust
Process is the nut by the first control shaft 609 of rotation, the second control shaft 610, third control shaft 612 and the 4th control shaft 613
611, rotation of the nut 611 on pedestal 602 can change the distance in every group of crack；
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to and need prefabricated crack
When rock stratum, crack fabricated device is begun to use to make crack；
By crack fabricated device be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip 601, according to experiment
The requirement of the crack length of formulation, the distance pressed down are equal to the length in crack, and precision controlling is within 10mm, entirely
It can't allow crack fabricated device that lateral sliding occurs in the process, then slowly discharge squeeze grip 601, withdraw crack knife
Piece 606；Crack fabricated device is picked up, puts down and splits at the distance for moving half of W type slotted opening along device length direction
Gap fabricated device；Slowly at the uniform velocity press squeeze grip 601, according to experiment formulate crack length requirement, press down
Distance is equal to the length in crack, and precision equally controls within 10mm, can't allow crack fabricated device in whole process
Lateral sliding occurs, then slowly release, in this way, the prefabricated of one, wave line style crack model value is completed, according to experiment
The area needed completes the prefabricated amount in multiple model cracks in the manner described above.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (5)
1. a kind of crack fabricated device, it is characterised in that：Including squeeze grip (601), pedestal (602) and it is disposed there between
Elastic interlayer, the squeeze grip (601) is cuboid, including four the first side walls and top plate, the pedestal (602) is length
Cube, including four second sidewalls and bottom plate, pass through multiple elasticity between the squeeze grip (601) and the pedestal (602)
Plastic cement (603) is connected, and has certain interval between the squeeze grip (601) and the pedestal (602), forms the bullet
Property interlayer；The crack fabricated device includes multiple crack preparing department, and the crack preparing department includes fixing axle (604), boosting
Blade (605), crack blade (606) and slideway (607)；
The fixing axle (604) is located at the inside of the squeeze grip (601), and both ends are separately fixed at positioned at front side and rear side
On the first side wall, the slideway (607) is the hollow structure of strip, is fixed in the pedestal (602), the slideway
(607) it is two, is separately positioned on the left and right sides of the fixing axle (604), the boosting blade (605) is two, upper end
It being connected on the fixing axle (604), the lower end of each boosting blade (605) is respectively connected with a crack blade (606),
The crack blade (606) is applied in the slideway (607)；
The crack fabricated device includes the first control shaft (609), the second control shaft (610), third control shaft (612) and the 4th
The lower end of the slideway (607) positioned at left side of control shaft (613), first control shaft (609) and all crack preparing department
It is connected, the third control shaft (612) is connected with the upper end of the slideway (607) positioned at left side of all crack preparing department,
There are two first through hole, first control shaft (609) and the third control shafts for the left side setting of the pedestal (602)
(612) left end is helicitic texture, is pierced by from two first through hole respectively, in first control shaft (609) and institute
The left end for stating third control shaft (612) is provided with nut (611), second control shaft (610) and all crack preparing department
The lower end of the slideway (607) positioned at right side be connected, the 4th control shaft (613) and all crack preparing department are located at the right side
The upper end of the slideway (607) of side is connected, and on the right side of the pedestal (602), there are two the second through-hole, second controls for setting
Axis (610) and the right end of the 4th control shaft (613) they are helicitic texture, are pierced by from two second through-holes respectively,
The right end of second control shaft (610) and the 4th control shaft (613) is provided with nut (611)；In the pedestal (602)
Bottom plate on be provided with multiple long stripes through holes passed through for the crack blade (606).
2. crack fabricated device according to claim 1, it is characterised in that：The top plate of the squeeze grip (601)
The height of a length of 800mm, width 200mm, thickness 45mm, the first side wall are 55mm, and material is plastics；The pedestal
(602) a length of 800mm of the bottom plate, width 200mm, thickness 200mm, the height of the second sidewall are 15mm；It is described
The height of Elastic plastic-rubber (603) is 200mm, and anterior-posterior length 200mm, left and right width is 20mm, the compression zone under 10kg pressure
Less than 100mm.
3. crack fabricated device according to claim 2, it is characterised in that：The boosting blade (605) it is upper and lower a length of
140mm, thickness 3mm, front and back width are 200mm, upper and lower a length of 300mm of the crack blade (606), thickness 1.5mm, and front and back is wide
For 200mm；A length of 150mm of the slideway (607), wall thickness 2mm, front and back width is 200mm, hollow with a thickness of 3.5mm；Institute
The material for stating boosting blade (605), the crack blade (606) and the slideway (607) is iron.
4. crack fabricated device according to claim 3, it is characterised in that：First control shaft (609), described second
The length of the helicitic texture of control shaft (610), the third control shaft (612) and the 4th control shaft (613) is 30-
100mm。
5. a kind of production method for carrying out Λ type crack using crack fabricated device as claimed in claim 4, it is characterised in that：Packet
Include following steps：
It is formulated according to experiment and requires to be laid with simulation rock stratum aggregate, comforted material, pave and be compacted, be routed to the rock stratum for needing prefabricated crack
When, begin to use crack fabricated device to make crack；
According to the requirement for the fracture density that experiment is formulated, by the spiral shell for rotating the first control shaft (609) and the second control shaft (610)
Female (611), it is accurate to expand or reduce slideway (607) in the distance of pedestal (602) exposed portion, reach experiment demand, such as
The density in requirement of experiment crack is 20 groups/rice, then the spacing in every group of crack is 0.05m, then needs to guarantee same group of slideway (607)
Spacing in pedestal (602) exposed portion is 0.05m；
According to the requirement for the crack angle that experiment is formulated, by the spiral shell for rotating third control shaft (612) and the 4th control shaft (613)
Female (611), are accurately controlled the angle of crack blade (606), and specific angle can measure the knife exposed in pressing
Piece first passes through the nut (611) of rotation the first control shaft (609) and the second control shaft (610), reaches wanting for experiment fracture density
It asks, then by the nut (611) of rotation third control shaft (612) and the 4th control shaft (613), is accurately controlled crack blade
(606) angle reaches the requirement of crack angle；
The crack fabricated device adjusted be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip (601), according to
Test formulate crack length requirement, the distance pressed down be equal to crack length, precision controlling within 10mm,
It can't allow crack fabricated device that lateral sliding occurs in whole process, then slowly release squeeze grip (601), withdraws
Crack blade (606)；Crack fabricated device is picked up, is put at the distance for moving a crack spacing along device length direction
Lower crack fabricated device, i.e. L, be placed with simulation rock stratum top, slowly at the uniform velocity press squeeze grip (601), according to experiment
The requirement of the crack length of formulation, the distance pressed down are equal to the length in crack, and precision equally controls within 10mm,
It can't allow crack fabricated device that lateral sliding occurs in whole process, then slowly release, in this way, completing Λ type crack
One model value it is prefabricated, according to the area that experiment needs, complete the prefabricated amount in multiple model cracks in the manner described above.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
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