CN107449667A - A kind of experimental provision and method of testing for being used to test gob side entry retaining stability - Google Patents
A kind of experimental provision and method of testing for being used to test gob side entry retaining stability Download PDFInfo
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- CN107449667A CN107449667A CN201710793601.6A CN201710793601A CN107449667A CN 107449667 A CN107449667 A CN 107449667A CN 201710793601 A CN201710793601 A CN 201710793601A CN 107449667 A CN107449667 A CN 107449667A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention discloses a kind of experimental provision and method of testing for being used to test gob side entry retaining stability of coal excavation apparatus simulation experiment device technical field,Including bottom plate,The two bottom sides of the bottom plate are provided with universal wheel,Experimental box is provided with the top of the bottom plate,Base is provided with the right side of the experimental box,Computer is provided with the top of the base,Room by lane is provided with the left of the inner chamber of the experimental box,Tunnel room is provided with the right side of the inner chamber of the experimental box,By the lane support plate is provided between room and tunnel room,The left wall of the support plate is provided with separation net,The inner chamber of room is provided with platen by the lane,The bottom of the platen is provided with pressure sensor,By the way that the internal structure of experimental box is identical with the gob side entry retaining construction of required measurement,And monitored in real time by pressure sensor,Proportioning filler as needed,The effect and intensity of obturation filling are determined after filler solidifies.
Description
Technical field
The present invention relates to coal excavation apparatus simulation experiment device technical field, is specially a kind of stable for testing gob side entry retaining
The experimental provision and method of testing of property.
Background technology
After gob side entry retaining coal-face former stope drift active workings are safeguarded along mined out area edge.In order to reclaim in traditional mining mode mode
Stay the protection coal pillar set.The crossheading of a upper section again supporting is left for next section using certain technological means to use.
This way for staying lane is to retain to be known as gob side entry retaining in former crossheading position along mined out area edge.Gob side entry retaining can be maximum
Limit Resource recovery.Coal body is avoided to lose.The key of Kong Liu lanes technology success or not is that can roadside support be adapted to along empty lane
The roof moves regulation in road, efficiently controls roof strata.Traditional roadside support has grillage, close standing props, waste pack, coagulation
Earth building blocks, ointment material filling and high-water material filling etc..Can the filling intensity of obturation reach requirement, to gob side entry retaining very
It is important.So need to carry out strength test, to ensure that its intensity requirement is up to standard, but be tested in underground coal mine both to influence to give birth to
Production, and indices bad control again.In view of the problem of mentioned above, present invention design is a kind of steady for testing gob side entry retaining
Qualitatively experimental provision and method of testing, it is mentioned above to solve the problems, such as.
The content of the invention
It is used to test the experimental provision and method of testing of gob side entry retaining stability it is an object of the invention to provide a kind of, with
Being tested in underground coal mine for solving to propose in above-mentioned background technology both influence to produce, and indices bad control again
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of reality for being used to test gob side entry retaining stability
Experiment device, including bottom plate, the two bottom sides of the bottom plate are provided with universal wheel, experimental box are provided with the top of the bottom plate,
Base is provided with the right side of the experimental box, computer is provided with the top of the base, is set on the left of the inner chamber of the experimental box
Room by lane is equipped with, tunnel room is provided with the right side of the inner chamber of the experimental box, support plate is provided between room and tunnel room by the lane,
The left wall of the support plate is provided with separation net, and the both ends of the support plate are provided with fixed block, and the top of the fixed block is run through
The top of experimental box, the bottom of the fixed block are arranged on the intracavity bottom of experimental box, be provided with by the lane at the top of room into
Material mouth, the inner chamber of lane side room are provided with platen, and the bottom of the platen is provided with pressure sensor, the top of the platen
Contiguous block is provided with, is provided with electric rotating machine at the top of the contiguous block, the clutch end of the electric rotating machine and platen
Top connects, and the left wall of the contiguous block is provided with connecting rod, and the lane side is provided with power house, the power house on the left of room
Inner chamber be provided with screw rod, the bottom of the screw rod is provided with bevel gear set, and the left wall bottom of the power house is provided with crank,
The screw rod is connected by bevel gear set with crank.
Preferably, the outer wall of the separation net is evenly arranged with screw, and the separation net is connected by screw with support plate.
Preferably, it is provided with limited block at the top of the outer wall of the screw rod.
Preferably, elongated slot is offered at the top of the experimental box, the top of elongated slot is run through on the top of the support plate, described solid
The outer wall for determining block is evenly arranged with pin, and the top fixed block is connected by the top of pin and experimental box, solid described in bottom
Determine block to connect by the intracavity bottom of pin and experimental box.
Preferably, the inner chamber left wall of the power house is provided with chute, and the left end of the connecting rod is provided with and chute phase
The sliding block of matching.
Preferably, the left wall of the power house is provided with graduated scale, and the left end of the connecting rod is provided with pointer, and pointer
Through the outer wall of graduated scale.
A kind of method of testing for being used to test gob side entry retaining stability, this kind are used for the test for testing gob side entry retaining stability
Method comprises the following steps that：
S1：Installation, regulation：Separation net is arranged on to the left wall of support plate by screw, according to the filler of required detection
Width, position of the adjustment support plate in experimental box, then fixes fixed block, secured adjusted separation net separation net is in reality by pin
Position in tryoff；
S2：Filler is matched, is then injected into the packing material matched by charging aperture indoor by lane；
S3：Tu Ping：Then crank is manually adjusted, drives screw rod to be rotated by helical gear so that connecting rod is entered
Row moves up and down, and realizes and the position of platen is adjusted, and then starts electric rotating machine, and electric rotating machine drives platen to be turned
It is dynamic, packing material is compacted, the thickness of packing material is measured according to the graduated scale of power chamber outer wall, constantly from charging aperture
Inject packing material and packing material is compacted by platen, reach and the thickness for needing to detect is measured by graduated scale
When, stop injection；
S4：Applied voltage test：Stop the rotation motor, after material solidification to be filled, opens computer, crank passes through bevel gear set
Platen is driven to carry out pressurization measurement to packing material with screw rod, and by the filling intensity of the real-time packing material of pressure sensor,
And analyzed by the pressure and the corresponding stress curve of drafting figure of computer record measurement.
Compared with prior art, the beneficial effects of the invention are as follows：This kind is used for the experiment dress for testing gob side entry retaining stability
Put and method of testing, by the way that the internal structure of experimental box is identical with the gob side entry retaining construction of required measurement, be divided into tunnel area with
Xiang Pang areas two parts, lane side room is filled with filler, and is pressed by platen, and is carried out in fact by pressure sensor
When monitor, match filler as needed, the effect and intensity of obturation filling determined after filler solidifies, and can be weighed
Multiple to utilize, the scope of application is wider, easy for installation, simple to operate.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is workflow diagram of the present invention.
In figure：1 bottom plate, 2 universal wheels, 3 experimental boxs, 4 bases, 5 computers, 6 lanes side room, 7 tunnel rooms, 8 support plates, 9 isolation
Net, 10 fixed blocks, 11 charging apertures, 12 platens, 13 pressure sensors, 14 contiguous blocks, 15 electric rotating machines, 16 connecting rods, 17 screw rods,
18 bevel gear sets, 19 cranks, 20 power houses.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of experiment dress for being used to test gob side entry retaining stability
Put, including bottom plate 1, the two bottom sides of the bottom plate 1 are provided with universal wheel 2, the top of the bottom plate 1 is provided with experimental box 3,
The right side of the experimental box 3 is provided with base 4, and the top of the base 4 is provided with computer 5, and the inner chamber of the experimental box 3 is left
Side is provided with room 6 by lane, and tunnel room 7 is provided with the right side of the inner chamber of the experimental box 3, is set by the lane between room 6 and tunnel room 7
Support plate 8 is equipped with, the left wall of the support plate 8 is provided with separation net 9, and the both ends of the support plate 8 are provided with fixed block 10, described solid
The top of experimental box 3 is run through on the top for determining block 10, and the bottom of the fixed block 10 is arranged on the intracavity bottom of experimental box 3, described
The top of room 6 is provided with charging aperture 11 by lane, and the inner chamber of lane side room 6 is provided with platen 12, and the bottom of the platen 12 is set
Pressure sensor 13 is equipped with, the top of the platen 12 is provided with contiguous block 14, and the top of the contiguous block 14 is provided with rotation
Motor 15, the clutch end of the electric rotating machine 15 are connected with the top of platen 12, and the left wall of the contiguous block 14 is provided with
Connecting rod 16, the left side of lane side room 6 are provided with power house 20, and the inner chamber of the power house 20 is provided with screw rod 17, described
The bottom of screw rod 17 is provided with bevel gear set 18, and the left wall bottom of the power house 20 is provided with crank 19, and the screw rod 17 is logical
Bevel gear set 18 is crossed to be connected with crank 19.
Wherein, the outer wall of the separation net 9 is evenly arranged with screw, and the separation net 9 is connected by screw with support plate 8,
Limited block is provided with the top of the outer wall of the screw rod 17, the top of the experimental box 3 offers elongated slot, the top of the support plate 8
Through the top of elongated slot, the outer wall of the fixed block 10 is evenly arranged with pin, and the top fixed block 10 passes through pin and reality
The top connection of tryoff 3, fixed block 10 described in bottom are connected by pin with the intracavity bottom of experimental box 3, the power house 20
Inner chamber left wall be provided with chute, the left end of the connecting rod 16 is provided with the sliding block to match with chute, the power house 20
Left wall be provided with graduated scale, the left end of the connecting rod 16 is provided with pointer, and pointer runs through the outer wall of graduated scale.
A kind of method of testing for being used to test gob side entry retaining stability, this kind are used for the test for testing gob side entry retaining stability
Method comprises the following steps that：
S1：Installation, regulation：Separation net 9 is arranged on to the left wall of support plate 8 by screw, according to the filling material of required detection
Expect width, position of the adjustment support plate 8 in experimental box 3, fixed block 10, the isolation of secured adjusted separation net are then fixed by pin
Position of the net 9 in experimental box 3；
S2：Pour into a mould obturator：Filler is matched, the packing material matched is then passed through into the note of charging aperture 11
By Ru Dao lanes in room 6；
S3：Tu Ping：Then crank 19 is manually adjusted, drives screw rod 17 to be rotated by helical gear 18 so that even
Extension bar 16 moves up and down, and realizes and the position of platen 12 is adjusted, and then starts electric rotating machine 15, the band of electric rotating machine 15
Dynamic pressure disk 12 is rotated, and packing material is compacted, and the thickness of packing material is measured according to the graduated scale of the outer wall of power house 20
Degree, constantly inject packing material from charging aperture 11 and packing material is compacted by platen 12, arrival passes through scale
When chi measures the thickness for needing to detect, stop injection；
S4：Applied voltage test：Stop the rotation motor 15, after material solidification to be filled, opens computer 5, crank 19 is by oblique
Gear train 18 and screw rod 17 drive platen 12 to carry out pressurization measurement to packing material, and fill material in real time by pressure sensor 13
The filling intensity of material, and analyzed by the pressure and the corresponding stress curve of drafting figure of computer record measurement.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of experimental provision for being used to test gob side entry retaining stability, including bottom plate (1), it is characterised in that：The bottom plate (1)
Two bottom sides be provided with universal wheel (2), experimental box (3) is provided with the top of the bottom plate (1), the experimental box (3)
Right side is provided with base (4), and computer (5) is provided with the top of the base (4), is set on the left of the inner chamber of the experimental box (3)
It is equipped with room (6) by lane, tunnel room (7), the lane side room (6) and tunnel room (7) is provided with the right side of the inner chamber of the experimental box (3)
Between be provided with support plate (8), the left wall of the support plate (8) is provided with separation net (9), and the both ends of the support plate (8) are provided with
The top of experimental box (3) is run through on fixed block (10), the top of the fixed block (10), and the bottom of the fixed block (10) is arranged on
The intracavity bottom of experimental box (3), is provided with charging aperture (11) by the lane at the top of room (6), the inner chamber of room (6) is set by the lane
Platen (12) is equipped with, the bottom of the platen (12) is provided with pressure sensor (13), is provided with the top of the platen (12)
Contiguous block (14), electric rotating machine (15), the power output of the electric rotating machine (15) are provided with the top of the contiguous block (14)
End is connected with the top of platen (12), and the left wall of the contiguous block (14) is provided with connecting rod (16), a left side for the lane side room (6)
Side is provided with power house (20), and the inner chamber of the power house (20) is provided with screw rod (17), and the bottom of the screw rod (17) is set
There is bevel gear set (18), the left wall bottom of the power house (20) is provided with crank (19), and the screw rod (17) passes through helical gear
Group (18) is connected with crank (19).
A kind of 2. experimental provision for being used to test gob side entry retaining stability according to claim 1, it is characterised in that：It is described
The outer wall of separation net (9) is evenly arranged with screw, and the separation net (9) is connected by screw with support plate (8).
A kind of 3. experimental provision for being used to test gob side entry retaining stability according to claim 1, it is characterised in that：It is described
Limited block is provided with the top of the outer wall of screw rod (17).
A kind of 4. experimental provision for being used to test gob side entry retaining stability according to claim 1, it is characterised in that：It is described
Elongated slot is offered at the top of experimental box (3), the top of the support plate (8) is outside the top of elongated slot, the fixed block (10)
Wall is evenly arranged with pin, and the top fixed block (10) is connected by pin with the top of experimental box (3), fixed described in bottom
Block (10) is connected by pin with the intracavity bottom of experimental box (3).
A kind of 5. experimental provision for being used to test gob side entry retaining stability according to claim 1, it is characterised in that：It is described
The inner chamber left wall of power house (20) is provided with chute, and the left end of the connecting rod (16) is provided with the sliding block to match with chute.
A kind of 6. experimental provision for being used to test gob side entry retaining stability according to claim 1, it is characterised in that：It is described
The left wall of power house (20) is provided with graduated scale, and the left end of the connecting rod (16) is provided with pointer, and pointer runs through graduated scale
Outer wall.
A kind of 7. method of testing for being used to test gob side entry retaining stability, it is characterised in that：This kind is steady for testing gob side entry retaining
Qualitatively method of testing comprises the following steps that：
S1：Installation, regulation：Separation net (9) is arranged on to the left wall of support plate (8) by screw, according to the filling material of required detection
Expect width, position of the adjustment support plate (8) in experimental box (3), fixed block (10), secured adjusted isolation are then fixed by pin
Position of the net separation net (9) in experimental box (3)；
S2：Pour into a mould obturator：Filler is matched, then injected the packing material matched by charging aperture (11)
By to lane in room (6)；
S3：Tu Ping：Then crank (19) is manually adjusted, drives screw rod (17) to be rotated by helical gear (18) so that
Connecting rod (16) moves up and down, and realizes and the position of platen (12) is adjusted, and then starts electric rotating machine (15), rotation
Motor (15) drives platen (12) to be rotated, and packing material is compacted, and is surveyed according to the graduated scale of power house (20) outer wall
Go out the thickness of packing material, constantly inject packing material from charging aperture (11) and packing material is carried out by platen (12)
Compacting, when arrival measures the thickness for needing to detect by graduated scale, stop injection；
S4：Applied voltage test：Stop the rotation motor (15), after material solidification to be filled, opens computer (5), crank (19) passes through
Bevel gear set (18) and screw rod (17) drive platen (12) to carry out pressurization measurement to packing material, and pass through pressure sensor (13)
The filling intensity of real-time packing material, and divided by the pressure and the corresponding stress curve of drafting figure of computer record measurement
Analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793601.6A CN107449667A (en) | 2017-09-06 | 2017-09-06 | A kind of experimental provision and method of testing for being used to test gob side entry retaining stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793601.6A CN107449667A (en) | 2017-09-06 | 2017-09-06 | A kind of experimental provision and method of testing for being used to test gob side entry retaining stability |
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| Publication Number | Publication Date |
|---|---|
| CN107449667A true CN107449667A (en) | 2017-12-08 |
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| CN201710793601.6A Pending CN107449667A (en) | 2017-09-06 | 2017-09-06 | A kind of experimental provision and method of testing for being used to test gob side entry retaining stability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213181A (en) * | 2020-09-16 | 2021-01-12 | 安徽理工大学 | Method for monitoring and simulating lateral stress of filling entry retaining roadside body |
| CN114233298A (en) * | 2021-12-26 | 2022-03-25 | 太原理工大学 | Underground empty roadway passing method, slurry and roadway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971585A (en) * | 2014-05-15 | 2014-08-06 | 山东科技大学 | Device and method for simulation test of load-carrying property of gob-side entry retaining anchoring pack wall |
| CN104390861A (en) * | 2014-11-24 | 2015-03-04 | 山东科技大学 | Experimental device and testing method for testing stability of gob-side entry retaining |
| CN105422172A (en) * | 2015-12-25 | 2016-03-23 | 山东科技大学 | Waste rock bag roadside support method for anchoring low coal seam with strong roof |
| CN105910916A (en) * | 2016-05-18 | 2016-08-31 | 华北科技学院 | Gob-side entry-retaining roadside filling effect detection experiment device |
-
2017
- 2017-09-06 CN CN201710793601.6A patent/CN107449667A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971585A (en) * | 2014-05-15 | 2014-08-06 | 山东科技大学 | Device and method for simulation test of load-carrying property of gob-side entry retaining anchoring pack wall |
| CN104390861A (en) * | 2014-11-24 | 2015-03-04 | 山东科技大学 | Experimental device and testing method for testing stability of gob-side entry retaining |
| CN105422172A (en) * | 2015-12-25 | 2016-03-23 | 山东科技大学 | Waste rock bag roadside support method for anchoring low coal seam with strong roof |
| CN105910916A (en) * | 2016-05-18 | 2016-08-31 | 华北科技学院 | Gob-side entry-retaining roadside filling effect detection experiment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213181A (en) * | 2020-09-16 | 2021-01-12 | 安徽理工大学 | Method for monitoring and simulating lateral stress of filling entry retaining roadside body |
| CN114233298A (en) * | 2021-12-26 | 2022-03-25 | 太原理工大学 | Underground empty roadway passing method, slurry and roadway |
| CN114233298B (en) * | 2021-12-26 | 2023-09-19 | 太原理工大学 | Underground gob-side entry passing method, slurry and tunnel |
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Application publication date: 20171208 |