CN108682259A - A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch - Google Patents
A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch Download PDFInfo
- Publication number
- CN108682259A CN108682259A CN201810457526.0A CN201810457526A CN108682259A CN 108682259 A CN108682259 A CN 108682259A CN 201810457526 A CN201810457526 A CN 201810457526A CN 108682259 A CN108682259 A CN 108682259A
- Authority
- CN
- China
- Prior art keywords
- crack
- water
- bearing layer
- aggregate
- saving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Abstract
The invention discloses a kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch, the coal seam (20) and other multiple rock stratum frame (9) including simulation and be disposed therein, it is provided with water-bearing layer (18) above the coal seam (20), it is provided with water-bearing layer simulation system in the water-bearing layer (18), the 5H above the coal seam (20), the first fissure zone (15) including a variety of cracks is respectively set at the positions 10H and 20H, second fissure zone (16) and third fissure zone (17), wherein, H is the height of the coal seam (20).Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator have the advantages that experimental efficiency is high and experimental precision is high with safety coal mining experiment porch.
Description
Technical field
The present invention relates to mining machinery and education sectors, are subtracted based on the energy saving of water-bearing layer simulator more particularly to a kind of
Row and safety coal mining experiment porch.
Background technology
In traditional sense, the similarity simulation experiment of coal mine rock stratum all based on two dimension, i.e. front and rear width all in 200mm,
So many experiments are also confined under the scope of front and rear width 200mm, thus it is generally less for the simulation in water-bearing layer, and for
In three-dimensional analog simulation, the simulation in water-bearing layer is less, meanwhile, when being simulated for water-bearing layer, the simulation in crack and entirely opening
The growth course in crack, is not studied temporarily during adopting.
Invention content
The technical problem to be solved in the present invention is to provide it is a kind of it is simple in structure, at low cost, be based on water-bearing layer easily to operate
The energy-saving and emission-reduction of simulator and safety coal mining experiment porch.
A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch, including simulation frame and setting exist
Coal seam therein and other multiple rock stratum, are provided with water-bearing layer above the coal seam, are provided in the water-bearing layer aqueous
Layer simulation system, the water-bearing layer simulation system includes that the second water inlet pipe of the first water inlet pipe and rear side in front side, institute is arranged
State one end closing of the first water inlet pipe and second water inlet pipe, the other end is connected with intelligence pressure control water tank, described first into
It is connected with multiple first sparge pipes on water pipe, multiple second sparge pipes, first spray are connected on second water inlet pipe
Water pipe and second sparge pipe are interspersed between first water inlet pipe and second water inlet pipe, in first spray
It is respectively arranged with row's hole for water spraying at left and right sides of water pipe and second sparge pipe；
The first fissure zone including a variety of cracks, second is respectively set above the coal seam at the position 5H, 10H and 20H
Fissure zone and third fissure zone, wherein H is the height in the coal seam.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein in institute
The top for stating the bottom plate of simulation frame is equipped with bed course, and water barrier is laid in the lower part in the water-bearing layer, wherein：
The water barrier is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.16：1.16：1：2；
The water-bearing layer is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.75：0.58：1：2.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein in institute
It states and is provided with real-time intelligent monitoring system in simulation frame, including osmometer, pressure sensor and optical borehole endoscope, quantity are equal
It is multiple；
Multiple osmometers are uniformly arranged between the water-bearing layer and the water barrier, and the pressure sensor is divided into
The lower section in the coal seam is arranged in upper layer and lower layer, and three layers of optical borehole endoscope are provided with above the coal seam.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
The length of first fissure zone and it is wide be respectively 2200mm and 1000mm, the length of second fissure zone and it is wide be respectively 1100mm and
500mm, the length of the third fissure zone and wide respectively 500mm and 250mm；In first fissure zone between crack between
Away from for 130-150mm, the spacing in second fissure zone between crack is 90-110mm, is split in the third fissure zone
Spacing between gap is 60-80mm, and the width in all cracks is 2.5-5.5mm, with detail sandfilling in crack, is filled and led up.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
Crack is made using crack fabricated device, and the crack fabricated device includes multiple crack pieces, crack piece carrier and crack
Piece fixed bin, the crack piece fixed bin include horizontally disposed fixed link, and multiple through-holes are provided in the fixed link,
Through hole described in two of which is connected with slideway, and the slideway is hollow tubular structure, the slideway and the through-hole it
Between connected using angle fixing buckle, the both ends of the slideway are in the upper and lower part of the angle fixing buckle respectively, and described
Slideway can in the lateral direction be rotated freely using the angle fixing buckle as axis；
The crack piece carrier is strip, is provided with multiple crack piece fixing buckles, quantity and the through-hole on it
Quantity is consistent, and the crack piece is connected on the crack piece fixing buckle；
Multiple crack piece specifications are identical or have plurality of specifications；The crack piece fixed bin further includes two fixations
Column is fixed with gasket in the fixed column lower end, and the both ends of the fixed link are separately fixed at the upper end of two fixed columns；
Multiple through-holes and multiple crack piece fixing buckles are to be equally spaced, and the distance between two neighboring described through-hole
The distance between the two neighboring crack piece fixing buckle is equal；The cross section of the slideway and the through-hole are rectangular
Shape is sized to that the crack piece is made to pass through；The crack piece can be axis using the crack piece fixing buckle in left and right
It is rotated freely on direction.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
The quantity of osmometer is 18, from front to back totally 3 row, often arranges 6, on left and right directions between the two neighboring osmometer away from
From for 700mm, the distance between two neighboring described osmometer is 450mm on front-rear direction,
Two layers of pressure sensor is separately positioned below the coal seam at 100mm and 300mm, pressure described in every layer
The quantity of sensor is 18, from front to back totally 3 row, often arranges 6, on left and right directions between the two neighboring pressure sensor
Distance be 700mm, the distance between two neighboring described pressure sensor is 450mm on front-rear direction；
Three layers of optical borehole endoscope are separately positioned on above the coal seam at 300mm, 600mm and 900mm, every layer
Including 3 optical borehole endoscopes, a centre position for being located at the simulation frame length direction, two in both sides, from
Under it is every layer supreme in the distance between the two neighboring optical borehole endoscope be respectively 1000mm, 600mm and 200mm.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
Simulation frame is cuboid, length and width and high respectively 5500mm, 1900mm and 2500mm；The bottom plate of the simulation frame and left and right two
The side plate of side is steel plate, and the side plate of front side is made of transparent material, and the side plate of rear side is fixed by multiple side guard plate stacked on top
It forms, the side guard plate includes plate body and is fixed on the support plate of the plate body top and bottom, in the left and right of the plate body two
Side, which is adopted, to be screwed.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
The pressure control section of intelligent pressure control water tank is 0-4MPa, and pressure maximum control accuracy is 0.1MPa；
The length of first water inlet pipe and second water inlet pipe is 5500mm, a diameter of 15mm, first water spray
The length of pipe and second sparge pipe is 1500mm, and a diameter of 5mm, both sides are both provided with the spray of 15 a diameter of 1mm
Spacing between the nearest hole for water spraying of the both ends distance of water hole, first sparge pipe and second sparge pipe is
50mm, the spacing between adjacent two hole for water sprayings are 100mm；
The quantity of first sparge pipe is 9, and the quantity of second sparge pipe is 10, adjacent first spray
The distance between water pipe and second sparge pipe are 250mm.
Energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch, wherein described
It includes supporting rod, U-shaped aggregate injection apparatus and compacting roller that intelligent aggregate, which loads debulking systems,；
The supporting rod be horizontally set on it is described simulation frame top, the U-shaped aggregate injection apparatus include aggregate bin and
Agitating shaft, the aggregate bin are made of the first baffle of U-shaped setting and second baffle, and the length of the first baffle is more than
The length of the second baffle is connected by front side board with back side panel between the first baffle and second baffle, and formation is used for
The warehouse for accommodating aggregate, in the bottom of the aggregate bin, setting is jagged, fixed between the front side board and the back side panel
There is the agitating shaft, be evenly arranged with multiple grooves on the agitating shaft, the agitating shaft is set as respectively with described first
Baffle and the second baffle inscribe, the top of the first baffle are flexibly connected with the supporting rod；
The supporting rod is front and back two；Motor, the motor and intelligent speed-control are provided on the outside of the front side board
System connects, and is connected by belt between the rotation axis of the motor and the rotation axis of the agitating shaft, the rotation of the motor
A diameter of 30mm of axis, a diameter of 150mm of the rotation axis of the agitating shaft；The size of the compacting roller is outer diameter 0.3m,
Internal diameter 0.29m, length 2595mm, irony, weight：380kg.
The laying method of energy-saving and emission-reduction of the present invention based on water-bearing layer simulator and safety coal mining experiment porch,
Include the following steps：
Set up the bottom plate of simulation frame, the side plate of the left and right sides, front side and rear side, wherein the side plate of front side is first used and rear side
The identical side guard plate of side plate fix；
It is laid with course：The course of 500-600mm is laid in the simulation frame bottom first, course uses
Discarded similar materials are substituted, i.e., using pervious similar experiment after prepare discarded sandstone to substitute, often
Layer thickness is not more than 300mm, is then compacted, and compacting factor is not less than 0.92, it is desirable that and overall leveling is closely knit；
The process of deployment of rock stratum loads debulking systems using intelligent aggregate, is stirred first to aggregate using blender,
Amount is poured slowly into U-shaped aggregate bin as required after stirring evenly, and U-shaped aggregate bin pours every layer of aggregate by evenly distributing；Institute
It states intelligent aggregate and loads debulking systems when in use, the part that compacting roller is kept right in centre, U-shaped aggregate injection apparatus is with certain
Injection rate and certain migration velocity spray aggregate to the right, when reaching centre position, stop injection aggregate and migration, by institute
State compacting roller slowly intimate moving to left at the uniform velocity, then the U-shaped aggregate injection apparatus restart to spray aggregate and
Migration is completed after aggregate is laid with, continue the compacting roller slowly almost at the uniform velocity move on to the right, the then U from the left side
Type aggregate injection apparatus slowly evenly moves on to the left side from the right again, starts next layer of laying；
Wherein, it when being laid with water-bearing layer, is first laid with half of materials and paves compacting, the water-bearing layer simulation system is placed it
In, it is gently pressed onto the first sparge pipe and when the second sparge pipe fits to material surface, continues paver to computed altitude；
When being laid with aquifer and aquifuge, first weigh respectively to fluent material and siccative, it is described dry by what is weighed up
Material pours into blender and stirs 3 minutes, adds water stirring 4 minutes, adds the fluent material stirring weighed up 3 minutes, slowly
It pours into U-shaped aggregate bin；
When making crack, using following production method：
As needed, spaced apart on the piece carrier of crack that the crack piece randomly selected is installed, if the crack
Piece specification is identical, then fixes crack fabricated device, be adjusted to preset angle, and ground way presses the crack piece carrier,
Crack is formed, is then pulled up, the crack piece is adjusted and arrives reversed equal angular, the fixation slideway, and by crack fabricated device
Slightly deviate certain distance, ensure interface crack formed point it is identical, formed the type crack " anti-V " formed if do not deviated
" V " type；
If continued again, aside prefabricated same " V " type crack, formation connection then form " W " type crack；
If the crack piece can form a series of random cracks using random-length；
If prefabricated random crack, the crack piece is all replaced after one-time use every time, to ensure crack
Randomness；
After crack completes, the crack spacing in first fissure zone is 130-150mm, in second crack
Crack spacing in band is 90-110mm, and the crack spacing in the third fissure zone is 60-80mm, and all Fracture Widths are
2.5-5.5mm, all cracks with detail sandfilling, are filled and led up；
The side guard plate on the side plate of the front side of the simulation frame is removed after entire model is finished and air-dried, and is installed
Bright tempered glass.
The present invention is based on the energy-saving and emission-reduction of water-bearing layer simulator and safety coal mining experiment porch unlike the prior art it
Be in：
The present invention is based on the energy-saving and emission-reduction of water-bearing layer simulator to realize three-dimensional similar mould to safety coal mining experiment porch
The simulation work of aquifer System is carried out on draft experiment platform；
The present invention is based on the water-bearing layer simulations that the energy-saving and emission-reduction of water-bearing layer simulator and safety coal mining experiment porch are related to
System can exclude the influence of boundary effect, in three-dimensional simulation system, stay the boundary coal column for having set 300mm or more, to thorough
Bottom eliminates the influence of boundary effect, the brighter accurate and science of experiment effect；
The present invention is based on the prefabricated dresses in crack that the energy-saving and emission-reduction of water-bearing layer simulator and safety coal mining experiment porch are related to
It sets and realizes that a plurality of types of cracks make, make experiment more closing to reality production situation.
Below in conjunction with the accompanying drawings to the energy-saving and emission-reduction based on water-bearing layer simulator of the present invention and safety coal mining experiment porch
It is described further.
Description of the drawings
Fig. 1 is the facing structure of energy-saving and emission-reduction and safety coal mining experiment porch based on water-bearing layer simulator in the present invention
Schematic diagram；
Fig. 2 is the structural schematic diagram of water-bearing layer simulation system in the present invention；
Fig. 3 is the cross-sectional view of crack fabricated device of the present invention；
Fig. 4 is the overlooking structure diagram of crack piece fixed bin in crack fabricated device of the present invention；
Fig. 5 is the flow diagram that random crack is made of crack fabricated device of the present invention；
Fig. 6 is the structural schematic diagram that intelligent aggregate loads debulking systems in the present invention.
Specific implementation mode
As depicted in figs. 1 and 2, a kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch, packet
The coal seam 20 and other multiple rock stratum for including simulation frame 9 and being disposed therein, are provided with water-bearing layer 18, aqueous above coal seam 20
It is provided with water-bearing layer simulation system in layer 18, using sandstone as rock stratum simulation material, water-bearing layer simulation system simulates water-bearing layer 18
Water storage function；Water-bearing layer simulation system includes that the second water inlet pipe 11 of the first water inlet pipe 10 and rear side in front side is arranged, and first
One end of water inlet pipe 10 and the second water inlet pipe 11 is closed, and the other end is connected with intelligent pressure control water tank 12, on the first water inlet pipe 10
Multiple first sparge pipes 13 are connected with, multiple second sparge pipes 14,13 He of the first sparge pipe are connected on the second water inlet pipe 11
Second sparge pipe 14 is interspersed between the first water inlet pipe 10 and the second water inlet pipe 11, sprays water in the first sparge pipe 13 and second
The left and right sides of pipe 14 is respectively arranged with row's hole for water spraying；
The first fissure zone 15, second including a variety of cracks is respectively set at the position 5H, 10H and 20H above the coal seam 20
Fissure zone 16 and third fissure zone 17, wherein H is the height in coal seam 20.
It is optimal technical scheme below：
It is equipped with bed course on the top of the bottom plate of simulation frame 9, water barrier 19 is laid in the lower part in water-bearing layer 18, wherein：
Water barrier 19 is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.16：1.16：1：2；
Water-bearing layer 18 is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.75：0.58：1：2.
Rock stratum is simulated according to realistic simulation scale modeling, is all isolated with mica sheet between every layer, mica sheet grain size is less than
3mm；Water barrier 19 is general all in 18 one layer or several layers of of underface of water-bearing layer, determines according to actual conditions.
Real-time intelligent monitoring system is provided in simulating frame 9, including osmometer, pressure sensor and optical borehole are pried through
Instrument, quantity are multiple；
Multiple osmometers are uniformly arranged between water-bearing layer 18 and water barrier 19, and pressure sensor is divided into upper layer and lower layer, if
The lower section in coal seam 20 is set, the top in coal seam 20 is provided with three layers of optical borehole endoscope.
The length of first fissure zone 15 and wide respectively 2200mm and 1000mm, the length and width of the second fissure zone 16 are respectively
1100mm and 500mm, the length of third fissure zone 17 and wide respectively 500mm and 250mm；In the first fissure zone 15 between crack
Spacing be 130-150mm, spacing in the second fissure zone 16 between crack is 90-110mm, is split in third fissure zone 17
Spacing between gap is 60-80mm, and the width in all cracks is 2.5-5.5mm, with detail sandfilling in crack, is filled and led up.
As shown in Fig. 3~Fig. 5, crack is made using crack fabricated device, and crack fabricated device of the present invention includes more
A crack piece 1, crack piece carrier 9 and crack piece fixed bin, crack piece fixed bin includes horizontally disposed fixed link 2, in fixation
It is provided with multiple through-holes 3 on bar 2, is connected with slideway 4 at two through-holes 3 wherein, slideway 4 is hollow tubular structure, sliding
It being connected using angle fixing buckle 5 between road 4 and through-hole 3, the both ends of slideway 4 are in the upper and lower part of angle fixing buckle 5 respectively,
And slideway 4 can be that axis rotates freely in the lateral direction with angle fixing buckle 5；
Crack piece carrier 9 is strip, is provided with multiple crack piece fixing buckles 6, the quantity one of quantity and through-hole 3 on it
It causes, crack piece 1 is connected on crack piece fixing buckle 6.
Multiple 1 specifications of crack piece are identical or have plurality of specifications.
Crack piece fixed bin further includes two fixed columns 7, is fixed with gasket 8 in 7 lower end of fixed column, main function is to increase
Contact area reduces pressure, will not have an impact in this way to the rock stratum of laying when making crack, the both ends point of fixed link 2
It is not fixed on the upper end of two fixed columns 7.
Multiple through-holes 3 and multiple crack piece fixing buckles 6 are to be equally spaced, and the distance between two neighboring through-hole 3
The distance between two neighboring crack piece fixing buckle 6 is equal.
The cross section of slideway 4 and through-hole 3 are rectangle, are sized to that crack piece 1 is made to pass through；Crack piece 1
Can be that axis rotates freely in the lateral direction with crack piece fixing buckle 6.
Angle fixing buckle 5 is that arbitrarily may be implemented to change the angle of slideway 4 and fixed device in the prior art, preferably
As follows, the both sides of slideway 4 are respectively provided with an angle fixing buckle 5, and there are 2 irons, iron in the place that slideway 4 intersects with fixed link 2
Bar is fixed on by patch in fixed link 2, by screwing screw can ground way 4 angle.Crack piece fixing buckle 6 is existing
Technology.
2 a length of 500mm of fixed link, between two neighboring through-hole 3 and the distance between two neighboring crack piece fixing buckle 6
For 20mm；Fixed column 7 is Telescopic rod structure, and section of stretching is 70-100mm, and the length of slideway 4 is 20mm, apart from slideway 4
Fixed angled fixing buckle 5 at the 5mm of upper end.The length of multiple crack pieces 1 between 95-115mm, thickness 2.5-5.5mm it
Between, width is between 1-4mm.Therefore can by adjust fixed column 7 height and slideway 4 angle, make various angles and
The prefabricated crack of length；Gasket 8 is iron plate, and length and width is respectively 300mm and 100mm.
The method for making crack using crack fabricated device, includes the following steps：
The making in crack is carried out in analog simulation system, analog simulation system includes model support and is provided at its inner portion
Coal seam and other rock stratum, the first crack including a variety of cracks is respectively set at the top position 5H, 10H and 20H in coal seam
Band, the second fissure zone and third fissure zone, wherein H is coal seam height, the length of the first fissure zone and it is wide be respectively 2200mm and
1000mm, the length of the second fissure zone and it is wide be respectively 1100mm and 500mm, the length of third fissure zone and it is wide be respectively 500mm and
250mm；
As needed, spaced apart on crack piece carrier 9 that the crack piece 1 randomly selected is installed, if crack piece 1
Specification is identical, then fixes crack fabricated device, be adjusted to preset angle, and ground way 4 presses crack piece carrier 9, is formed
Then crack pulls up, adjustment crack piece 1 arrives reversed equal angular, ground way 4, and crack fabricated device is slightly deviated one
Set a distance, ensure interface crack formed point it is identical, formed the type crack " anti-V " form " V " type if do not deviated；
If continued again, aside prefabricated same " V " type crack, formation connection then form " W " type crack；
If crack piece 1 can form a series of random cracks using random-length, Fig. 3 is the system in random crack
Make flow diagram；
If prefabricated random crack, crack piece 1 is all replaced after one-time use every time, to ensure the random of crack
Property；
After crack completes, the crack spacing in the first fissure zone is 130-150mm, splitting in the second fissure zone
Gap spacing is 90-110mm, and the crack spacing in third fissure zone is 60-80mm, and all Fracture Widths are 2.5-5.5mm, institute
There is crack with detail sandfilling, to fill and lead up.
Prefabricated crack emphasizes randomness, therefore the length of multiple crack pieces 1 is respectively between 95-115mm, i.e., between crack
Length difference in 5mm or so, specific crack length is controlled by artificial pressure；The thickness of crack piece 1 2.5-5.5mm it
Between, between 1-4mm, equal random installation forms the width of crack piece 1 when using every time, therefore finally show that angle is consistent, but
Length x Width and thickness are inconsistent, and random crack can ensure to form a variety of crack forms such as numerous W, V, anti-V and slash type,
And will not penetrate through therebetween, a kind of random prefabricated crack form can be only formed, after crack piece carrier 9 uses once every time
All crack pieces 1 are replaced, to ensure the randomness in crack；First fissure zone spacing is larger, is set as 120-140mm, the second crack
The crack spacing of band is set as 90-110mm, and in third fissure zone crack, spacing is set as 60-80mm, crack spacing i.e. crack each time
The spacing used between crack piece 1 on piece carrier 9.
It is laid with osmometer after water barrier 19 is laid with, measures seepage water pressure in rock stratum；The quantity of osmometer is 18
A, totally 3 row, often arranges 6 from front to back, and the distance between two neighboring osmometer is 700mm on left and right directions, on front-rear direction
The distance between two neighboring osmometer is 450mm,
Two layers of pressure sensor is separately positioned at coal seam 20 lower section 100mm and 300mm, monitors whole pressure change feelings
Condition, the quantity of pressure sensor is 18 in every layer, from front to back totally 3 row, often arranges 6, two neighboring pressure on left and right directions
The distance between sensor is 700mm, and the distance between two neighboring pressure sensor is 450mm on front-rear direction；
Three layers of optical borehole endoscope are separately positioned at 20 top 300mm of coal seam, 600mm and 900mm, and every layer includes 3
A optical borehole endoscope, a centre position for being located at simulation 9 length direction of frame, two in both sides, from bottom to up in every layer
The distance between two neighboring optical borehole endoscope is respectively 1000mm, 600mm and 200mm.Optical borehole endoscope is to adopting
Field overlying rock damage is studied with destructive characteristics, which uses fine definition camera lens and color display apparatus, is differentiated
The crack of 0.5mm connect real-time Transmission and display, it can be achieved that image with host computer, can intuitively react drilling implosion
The case where gap is developed.
Simulation frame 9 is cuboid, length and width and high respectively 5500mm, 1900mm and 2500mm；The reason of so designing
It is to simulate according to 200:1 pantograph ratio design, therefore be design core with width, a length of standard is tilted with 300m working faces, two
Each 40m coal columns in side, then wide positioning 1900mm, it is contemplated that the development height of fissure zone is calculated with the thickness 10m in coal seam 20, then at least
It is required that the height of 1000mm or more, it is also contemplated that relationship of the water-bearing layer 18 apart from coal seam 20 is indefinite, therefore general height it is fixed compared with
It is big then model use range is bigger, therefore task difficulty and cost is combined to consider, it designs in 2500mm；And length be then because
It is at least to ensure that 20 Excavation simulation of coal seam at least will be more than big square position, at least to complete 1 first weighting and 1 period
It is suitable to be advisable to press, consider in conjunction with task difficulty and cost therefore be designed as 5500mm.
The side plate of the bottom plate and the left and right sides of simulating frame 9 is steel plate, and the side plate of front side is made of transparent material, for seeing
Examine formation variations situation；The side plate of rear side is fixed by multiple side guard plate stacked on top, and side guard plate includes plate body and is fixed on
The support plate of plate body top and bottom is adopted at left and right sides of plate body and is screwed.
Intelligent pressure control water tank 12 can according to require control initial water pressure and with experimental period promote and change pressure is big
It is small, it can fully simulate in reality because of the process that gushing water causes hydraulic pressure to reduce, the pressure control section of intelligent pressure control water tank 12 is 0-
4MPa, pressure maximum control accuracy are 0.1MPa；
The length of first water inlet pipe 10 and the second water inlet pipe 11 is 5500mm, a diameter of 15mm, the first sparge pipe 13 and the
The length of two sparge pipes 14 is 1500mm, and a diameter of 5mm, both sides are both provided with the hole for water spraying of 15 a diameter of 1mm, the first water spray
Spacing of the both ends of pipe 13 and the second sparge pipe 14 between nearest hole for water spraying is 50mm, between adjacent two hole for water sprayings
Spacing be 100mm；
The quantity of first sparge pipe 13 is 9, and the quantity of the second sparge pipe 14 is 10, adjacent 13 He of the first sparge pipe
The distance between second sparge pipe 14 is 250mm.Water pipe material is plastic tube.
As shown in fig. 6, it includes supporting rod 21, U-shaped aggregate injection apparatus 22 and compacting rolling that intelligent aggregate, which loads debulking systems,
Wheel 23；
Supporting rod 21 is horizontally set on the top of simulation frame 9, and U-shaped aggregate injection apparatus 22 includes aggregate bin and agitating shaft
24, aggregate bin is made of the first baffle 25 of U-shaped setting and second baffle 26, and the length of first baffle 25 is more than second gear
The length of plate 26 is connected by front side board with back side panel between first baffle 25 and second baffle 26, is formed for accommodating aggregate
Warehouse, aggregate bin bottom be arranged jagged 27, agitating shaft 24 is fixed between front side board and back side panel, in agitating shaft
Be evenly arranged with multiple grooves on 24, agitating shaft 24 be set as respectively with 26 inscribe of first baffle 25 and second baffle, first gear
The top of plate 25 is flexibly connected with supporting rod 21；
Supporting rod 21 is front and back two；Motor is provided on the outside of front side board, motor is connect with intelligent speed-control system, electricity
It is connected by belt between the rotation axis and the rotation axis of agitating shaft 24 of machine, a diameter of 30mm of the rotation axis of motor, agitating shaft
A diameter of 150mm of 24 rotation axis；The size of compacting roller 23 be outer diameter 0.3m, internal diameter 0.29m, length 2595mm, irony,
Weight：380kg.
Such system design reasons have 2：Threedimensional model area first is big, and the artificial aggregate that is laid with is uneven, is compacted also not
Uniformly, especially area is big, causes and thinks be difficult to determine where high bottom is where low, and where where closely knit pine is, and U-shaped aggregate
Injection apparatus 22 is that can determine the migration velocity of needs, therefore work as U-shaped aggregate and spray with certain discharging speed, according to depth of stratum
Injection device 22 migrates to the right side from a left side, controls aggregate and just sprays completely, ensures the uniformity of sprinkling aggregate, and by slowly close
The artificial uniformity for pushing compacting roller to also ensure compacting at the uniform velocity；Secondly, artificial promotion compacting slowly almost at the uniform velocity
Idler wheel 23, it is extremely important for water bag simulated groundwater library, because of the mobility of water, when the aggregate for hitting tight laying in a conventional manner
When, the aggregate rebound that the mobility of water can cause front to pound is loose, and effect is run counter to desire, therefore entire design is very suitable for band
The similarity simulation experiment of water.
The laying method of energy-saving and emission-reduction and safety coal mining experiment porch based on water-bearing layer simulator, including walk as follows
Suddenly：
Set up the bottom plate of simulation frame 9, the side plate of the left and right sides, front side and rear side, wherein the side plate of front side is first used and rear side
The identical side guard plate of side plate fix；
It is laid with course：The course of 500-600mm is laid in 9 bottom of simulation frame first, course is using useless
The similar materials abandoned are substituted, i.e., using pervious similar experiment after prepare discarded sandstone to substitute, every layer
Thickness is not more than 300mm, is then compacted, and compacting factor is not less than 0.92, it is desirable that and overall leveling is closely knit；
The process of deployment of rock stratum loads debulking systems using intelligent aggregate, is stirred first to aggregate using blender,
Amount is poured slowly into U-shaped aggregate bin as required after stirring evenly, and U-shaped aggregate bin pours every layer of aggregate by evenly distributing；Intelligence
Energy aggregate loads debulking systems when in use, and the part that compacting roller 23 is kept right in centre, U-shaped aggregate injection apparatus 22 is with certain
Injection rate and certain migration velocity spray aggregate to the right, when reaching centre position, stop injection aggregate and migration, will press
Slow intimate the moving to left at the uniform velocity of real idler wheel 23, then U-shaped aggregate injection apparatus 22 restart to spray aggregate and migration,
Complete after aggregate is laid with, continue compacting roller 23 slowly almost at the uniform velocity move on to the right from the left side, then U-shaped aggregate injection dress
It sets 22 and slowly evenly moves on to the left side from the right again, start next layer of laying；
Wherein, it when being laid with water-bearing layer 18, is first laid with half of materials and paves compacting, water-bearing layer simulation system is placed it
In, it is gently pressed onto the first sparge pipe 13 and when the second sparge pipe 14 fits to material surface, continues paver to computed altitude；
When being laid with water-bearing layer 18 and water barrier 19, first weigh respectively to fluent material and siccative, it is dry by what is weighed up
Material pours into blender and stirs 3 minutes, adds water stirring 4 minutes, adds the fluent material weighed up and stirs 3 minutes, is poured slowly into U
In type aggregate bin；
When making crack, using following production method：
As needed, spaced apart on crack piece carrier 9 that the crack piece 1 randomly selected is installed, if crack piece 1
Specification is identical, then fixes crack fabricated device, be adjusted to preset angle, and ground way 4 presses crack piece carrier 9, is formed
Then crack pulls up, adjustment crack piece 1 arrives reversed equal angular, ground way 4, and crack fabricated device is slightly deviated one
Set a distance, ensure interface crack formed point it is identical, formed the type crack " anti-V " form " V " type if do not deviated；
If continued again, aside prefabricated same " V " type crack, formation connection then form " W " type crack；
If crack piece 1 can form a series of random cracks using random-length；
If prefabricated random crack, crack piece 1 is all replaced after one-time use every time, to ensure the random of crack
Property；
After crack completes, the crack spacing in the first fissure zone is 130-150mm, splitting in the second fissure zone
Gap spacing is 90-110mm, and the crack spacing in third fissure zone is 60-80mm, and all Fracture Widths are 2.5-5.5mm, institute
There is crack with detail sandfilling, to fill and lead up；
Side guard plate on the side plate for the front side for removing simulation frame 9 after entire model is finished and air-dried, installs transparent tempering
Glass.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (10)
1. a kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch, it is characterised in that：Including simulation
Frame (9) and the coal seam (20) and other multiple rock stratum being disposed therein are provided with water-bearing layer (18) above the coal seam (20),
Water-bearing layer simulation system is provided in the water-bearing layer (18), the water-bearing layer simulation system includes being arranged the first of front side
The second water inlet pipe (11) of water inlet pipe (10) and rear side, one end of first water inlet pipe (10) and second water inlet pipe (11)
Closing, the other end are connected with intelligent pressure control water tank (12), and multiple first sparge pipes are connected on first water inlet pipe (10)
(13), multiple second sparge pipes (14) are connected on second water inlet pipe (11), first sparge pipe (13) and described
Second sparge pipe (14) is interspersed between first water inlet pipe (10) and second water inlet pipe (11), described first
It is respectively arranged with row's hole for water spraying at left and right sides of sparge pipe (13) and second sparge pipe (14)；
Be respectively set at the position 5H, 10H and 20H above the coal seam (20) the first fissure zone (15) including a variety of cracks,
Second fissure zone (16) and third fissure zone (17), wherein H is the height of the coal seam (20).
2. the energy-saving and emission-reduction according to claim 1 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：It is equipped with bed course on the top of the bottom plate of the simulation frame (9), water barrier is laid in the lower part of the water-bearing layer (18)
(19), wherein：
The water barrier (19) is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.16：1.16：1：2；
The water-bearing layer (18) is formed using the material preparation of following weight ratio：Middle sand：Blanc fixe：Talcum powder：Vaseline：Silicon
Oil：Cement：Water=11.50：11.50：2.30：1.75：0.58：1：2.
3. the energy-saving and emission-reduction according to claim 2 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：Real-time intelligent monitoring system is provided in the simulation frame (9), including osmometer, pressure sensor and optics bore
Hole endoscope, quantity are multiple；
Multiple osmometers are uniformly arranged between the water-bearing layer (18) and the water barrier (19), the pressure sensor
It is divided into upper layer and lower layer, is arranged in the lower section of the coal seam (20), three layers of optics are provided with above the coal seam (20)
Inspection instrument for borehole.
4. the energy-saving and emission-reduction according to claim 3 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：The length of first fissure zone (15) and wide respectively 2200mm and 1000mm, the length of second fissure zone (16)
It is respectively 1100mm and 500mm, the length of the third fissure zone (17) and wide respectively 500mm and 250mm with width；Described
Spacing in one fissure zone (15) between crack is 130-150mm, the spacing in second fissure zone (16) between crack
For 90-110mm, the spacing in the third fissure zone (17) between crack is 60-80mm, and the width in all cracks is
2.5-5.5mm is filled and led up with detail sandfilling in crack.
5. the energy-saving and emission-reduction according to claim 1 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：The crack is made using crack fabricated device, and the crack fabricated device includes multiple crack pieces (1), splits
Feeler carrier (9) and crack piece fixed bin, the crack piece fixed bin includes horizontally disposed fixed link (2), in the fixation
It is provided with multiple through-holes (3) on bar (2), is connected with slideway (4), the slideway (4) at two through-holes (3) wherein
For hollow tubular structure, connected using angle fixing buckle (5) between the slideway (4) and the through-hole (3), the slideway (4)
Both ends be in the upper and lower part of the angle fixing buckle (5) respectively, and the slideway (4) can be with the angle fixing buckle
(5) it is that axis rotates freely in the lateral direction；
The crack piece carrier (9) is strip, is provided with multiple crack piece fixing buckles (6), quantity and the through-hole on it
(3) quantity is consistent, and the crack piece (1) is connected on the crack piece fixing buckle (6)；
Multiple crack piece (1) specifications are identical or have plurality of specifications；The crack piece fixed bin further includes two fixations
Column (7) is fixed with gasket (8) in the fixed column (7) lower end, and the both ends of the fixed link (2) are separately fixed at described in two
The upper end of fixed column (7)；Multiple through-holes (3) and multiple crack piece fixing buckles (6) are to be equally spaced, and adjacent
The distance between two described through-holes (3) are equal with the distance between the two neighboring crack piece fixing buckle (6)；The slideway
(4) cross section and the through-hole (3) is rectangle, is sized to that the crack piece (1) is made to pass through；It is described to split
Feeler (1) can be that axis rotates freely in the lateral direction with the crack piece fixing buckle (6).
6. the energy-saving and emission-reduction according to claim 5 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：The quantity of the osmometer is 18, from front to back totally 3 row, often arranges 6, two neighboring on left and right directions described to ooze
Press the distance between meter for 700mm, the distance between two neighboring described osmometer is 450mm on front-rear direction,
Two layers of pressure sensor is separately positioned below the coal seam (20) at 100mm and 300mm, pressure described in every layer
The quantity of sensor is 18, from front to back totally 3 row, often arranges 6, on left and right directions between the two neighboring pressure sensor
Distance be 700mm, the distance between two neighboring described pressure sensor is 450mm on front-rear direction；
Three layers of optical borehole endoscope are separately positioned on above the coal seam (20) at 300mm, 600mm and 900mm, every layer
Including 3 optical borehole endoscopes, a centre position for being located at described simulation frame (9) length direction, two in both sides,
The distance between two neighboring described optical borehole endoscope is respectively 1000mm, 600mm and 200mm in every layer from bottom to up.
7. the energy-saving and emission-reduction according to claim 6 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：The simulation frame (9) is cuboid, length and width and high respectively 5500mm, 1900mm and 2500mm；The simulation frame
(9) side plate of bottom plate and the left and right sides is steel plate, and the side plate of front side is made of transparent material, and the side plate of rear side is by multiple sides
Backplate stacked on top is fixed, and the side guard plate includes plate body and is fixed on the support plate of the plate body top and bottom,
It adopts and is screwed at left and right sides of the plate body.
8. the energy-saving and emission-reduction according to claim 7 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：The pressure control section of the intelligence pressure control water tank (12) is 0-4MPa, and pressure maximum control accuracy is 0.1MPa；
The length of first water inlet pipe (10) and second water inlet pipe (11) is 5500mm, a diameter of 15mm, described first
The length of sparge pipe (13) and second sparge pipe (14) be 1500mm, a diameter of 5mm, both sides be both provided with 15 it is a diameter of
The spray of the both ends distance of the hole for water spraying of 1mm, first sparge pipe (13) and second sparge pipe (14) recently
Spacing between water hole is 50mm, and the spacing between adjacent two hole for water sprayings is 100mm；
The quantity of first sparge pipe (13) is 9, and the quantity of second sparge pipe (14) is 10, adjacent described the
The distance between one sparge pipe (13) and second sparge pipe (14) are 250mm.
9. the energy-saving and emission-reduction according to claim 8 based on water-bearing layer simulator and safety coal mining experiment porch, special
Sign is：It includes supporting rod (21), U-shaped aggregate injection apparatus (22) and compacting roller that the intelligent aggregate, which loads debulking systems,
(23)；
The supporting rod (21) is horizontally set on the top of the simulation frame (9), and the U-shaped aggregate injection apparatus (22) includes bone
Feed bin and agitating shaft (24), the aggregate bin is made of the first baffle (25) of U-shaped setting and second baffle (26), described
The length of first baffle (25) is more than the length of the second baffle (26), the first baffle (25) and second baffle (26) it
Between connected with back side panel by front side board, form warehouse for accommodating aggregate, setting is jagged in the bottom of the aggregate bin
(27), the agitating shaft (24) is fixed between the front side board and the back side panel, on the agitating shaft (24) uniformly
Multiple grooves are provided with, the agitating shaft (24) is set as interior with the first baffle (25) and the second baffle (26) respectively
It cuts, the top of the first baffle (25) is flexibly connected with the supporting rod (21)；
The supporting rod (21) is front and back two；Motor, the motor and intelligent speed-control are provided on the outside of the front side board
System connects, and is connect by belt between the rotation axis of the motor and the rotation axis of the agitating shaft (24), the motor
A diameter of 30mm of rotation axis, a diameter of 150mm of the rotation axis of the agitating shaft (24)；The size of the compacting roller (23)
For outer diameter 0.3m, internal diameter 0.29m, length 2595mm, irony, weight：380kg.
10. the laying side of the energy-saving and emission-reduction and safety coal mining experiment porch based on water-bearing layer simulator described in claim 9
Method, it is characterised in that：Include the following steps：
Set up the bottom plate of simulation frame (9), the side plate of the left and right sides, front side and rear side, wherein the side plate of front side is first used and rear side
The identical side guard plate of side plate is fixed；
It is laid with course：The course of 500-600mm is laid in described simulation frame (9) bottom first, course uses
Discarded similar materials are substituted, i.e., using pervious similar experiment after prepare discarded sandstone to substitute, often
Layer thickness is not more than 300mm, is then compacted, and compacting factor is not less than 0.92, it is desirable that and overall leveling is closely knit；
The process of deployment of rock stratum loads debulking systems using intelligent aggregate, is stirred first to aggregate using blender, stirs
Amount is poured slowly into U-shaped aggregate bin as required after uniformly, and U-shaped aggregate bin pours every layer of aggregate by evenly distributing；The intelligence
Can aggregate load debulking systems when in use, compacting roller (23) in the part kept right of centre, U-shaped aggregate injection apparatus (22) with
Certain injection rate and certain migration velocity spray to the right aggregate, when reaching centre position, stop injection aggregate and migration,
Slow intimate the moving to left at the uniform velocity by the compacting roller (23), then the U-shaped aggregate injection apparatus (22) is opened again
Begin injection aggregate and migration, completes after aggregate is laid with, and continues the compacting roller (23) slowly almost being moved from the left side at the uniform velocity
To the right, then the U-shaped aggregate injection apparatus (22) and the left side evenly slowly is moved on to from the right, start next layer of laying；
Wherein, it when being laid with water-bearing layer (18), is first laid with half of materials and paves compacting, the water-bearing layer simulation system is placed it
In, it is gently pressed onto the first sparge pipe (13) and when the second sparge pipe (14) fits to material surface, continues paver to calculating height
Degree；
When being laid with water-bearing layer (18) and water barrier (19), first weigh respectively to fluent material and siccative, the institute that will be weighed up
It states siccative and pours into blender stirring 3 minutes, add water stirring 4 minutes, add the fluent material weighed up and stir 3 minutes,
It is poured slowly into U-shaped aggregate bin；
When making crack, using following production method：
As needed, spaced apart on crack piece carrier (9) that the crack piece (1) randomly selected is installed, if described split
Feeler (1) specification is identical, then fixes crack fabricated device, be adjusted to preset angle, ground way (4), by the crack piece
Carrier (9) is pressed, and is formed crack, is then pulled up, and is adjusted the crack piece (1) and is arrived reversed equal angular, the fixed slideway
(4), and by crack fabricated device slightly deviate certain distance, ensure interface crack formed point it is identical, formed " anti-V " type split
Gap forms " V " type if do not deviated；
If continued again, aside prefabricated same " V " type crack, formation connection then form " W " type crack；
If the crack piece (1) can form a series of random cracks using random-length；
If prefabricated random crack, the crack piece (1) every time after one-time use all replace, with ensure crack with
Machine；
After crack completes, the crack spacing in first fissure zone is 130-150mm, in second fissure zone
Crack spacing be 90-110mm, crack spacing in the third fissure zone is 60-80mm, and all Fracture Widths are 2.5-
5.5mm, all cracks with detail sandfilling, are filled and led up；
The side guard plate on the side plate for the front side for removing the simulation frame (9) after entire model is finished and air-dried, is installed
Bright tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457526.0A CN108682259A (en) | 2018-05-14 | 2018-05-14 | A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457526.0A CN108682259A (en) | 2018-05-14 | 2018-05-14 | A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108682259A true CN108682259A (en) | 2018-10-19 |
Family
ID=63806071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457526.0A Pending CN108682259A (en) | 2018-05-14 | 2018-05-14 | A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108682259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675006A (en) * | 2022-03-25 | 2022-06-28 | 安徽理工大学 | Simulation modeling experiment device for simulating migration characteristics of coal seam mining roof water-bearing stratum |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202599724U (en) * | 2012-04-23 | 2012-12-12 | 山东大学 | Tooling used for manufacturing complete-penetration fracture class rock material standard samples with different angles |
| CN204791743U (en) * | 2015-07-10 | 2015-11-18 | 贵州理工学院 | Low coverage coal seam bao shui three -dimensional simulation test testing system that mines |
| CN105116116A (en) * | 2015-10-12 | 2015-12-02 | 中国矿业大学(北京) | Coal mining simulation experiment device |
| CN105719551A (en) * | 2016-01-25 | 2016-06-29 | 陕西煤业化工技术研究院有限责任公司 | Coal seam group mining and top plate and goaf water dynamic seepage three-dimensional simulator |
| CN105823663A (en) * | 2016-05-11 | 2016-08-03 | 中国海洋大学 | Mold for manufacturing hemi-discoid rock-like specimen with fracture surface and manufacturing method |
| CN207079449U (en) * | 2017-08-03 | 2018-03-09 | 四川建筑职业技术学院 | A kind of construction material laying apparatus of adaptive width of roadway |
| CN207198149U (en) * | 2017-02-28 | 2018-04-06 | 贵州理工学院 | One kind is based on numerical simulation study close-in seamses group's water-retaining production experimental provision |
-
2018
- 2018-05-14 CN CN201810457526.0A patent/CN108682259A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202599724U (en) * | 2012-04-23 | 2012-12-12 | 山东大学 | Tooling used for manufacturing complete-penetration fracture class rock material standard samples with different angles |
| CN204791743U (en) * | 2015-07-10 | 2015-11-18 | 贵州理工学院 | Low coverage coal seam bao shui three -dimensional simulation test testing system that mines |
| CN105116116A (en) * | 2015-10-12 | 2015-12-02 | 中国矿业大学(北京) | Coal mining simulation experiment device |
| CN105719551A (en) * | 2016-01-25 | 2016-06-29 | 陕西煤业化工技术研究院有限责任公司 | Coal seam group mining and top plate and goaf water dynamic seepage three-dimensional simulator |
| CN105823663A (en) * | 2016-05-11 | 2016-08-03 | 中国海洋大学 | Mold for manufacturing hemi-discoid rock-like specimen with fracture surface and manufacturing method |
| CN207198149U (en) * | 2017-02-28 | 2018-04-06 | 贵州理工学院 | One kind is based on numerical simulation study close-in seamses group's water-retaining production experimental provision |
| CN207079449U (en) * | 2017-08-03 | 2018-03-09 | 四川建筑职业技术学院 | A kind of construction material laying apparatus of adaptive width of roadway |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114675006A (en) * | 2022-03-25 | 2022-06-28 | 安徽理工大学 | Simulation modeling experiment device for simulating migration characteristics of coal seam mining roof water-bearing stratum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106197944B (en) | Simulate the testing system apparatus and method of complex condition deep tunnel inrush through faults | |
| CN104594871B (en) | Device and method for simulating shale complex crack sand laying | |
| CN102864758B (en) | Construction method of rolling compaction type asphalt concrete impervious core wall in high altitude and cold areas | |
| CN108061687A (en) | It is a kind of to study the geotechnical engineering analogue test platform for having Latent destruction face | |
| CN205808669U (en) | The testing system apparatus of simulation complex condition deep tunnel inrush through faults | |
| CN107575017A (en) | One kind building device for paving bricks | |
| CN105442417B (en) | A kind of cement concrete pavement trimming device | |
| CN207003194U (en) | Road and bridge construction evenness of road surface device | |
| CN111487166A (en) | Test device and method for simulating three-dimensional flow state of filling slurry in collapse zone | |
| CN108682261B (en) | Experiment teaching aid for simulating coal seam mining in civil engineering | |
| CN108682259A (en) | A kind of energy-saving and emission-reduction based on water-bearing layer simulator and safety coal mining experiment porch | |
| CN214011233U (en) | Simulation modeling experiment device for simulating migration of coal seam mining roof water-bearing stratum | |
| CN107542065B (en) | Construction method for overturning and lifting small steel die of high-steep-clearance groove | |
| CN108615448A (en) | The device that mining area surface collapses can be simulated in a kind of teaching of coal mine | |
| CN108205057A (en) | Underground engineering blocks the simulation test device that water circulation path causes city ground subsidence | |
| CN207277140U (en) | Water conservancy project special asphalt paver | |
| CN207537853U (en) | A kind of construction of the highway pressure road device | |
| CN108918817A (en) | A kind of underwater security mining experimental provision in the see-through internal portion of analog simulation geotechnique | |
| CN115096679A (en) | Automatic laying device, system and method for two-dimensional analog simulation test bed | |
| CN111719371A (en) | Road base layer component and road paving method | |
| CN108627632A (en) | A kind of large-scale mining analog simulation experimental device monitoring strata displacement | |
| CN108898909A (en) | A kind of laboratory teaching coalfield artesian aquifer simulator | |
| CN210217718U (en) | Direction-changeable parallel plate crack simulation device | |
| CN108896360A (en) | A kind of experimental provision of geotechnical engineering and quick prefabricated crack in teaching | |
| CN202702365U (en) | Wallboard machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |