CN106092626A - Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole - Google Patents
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole Download PDFInfo
- Publication number
- CN106092626A CN106092626A CN201610389432.5A CN201610389432A CN106092626A CN 106092626 A CN106092626 A CN 106092626A CN 201610389432 A CN201610389432 A CN 201610389432A CN 106092626 A CN106092626 A CN 106092626A
- Authority
- CN
- China
- Prior art keywords
- water
- box body
- coal petrography
- hole
- filling pressure
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole, including box body, impact hammer, coal petrography sample and foil gauge, the open at one end of box body, the other end is closed, the head of impact hammer is put in box body by box body open end, the shank of impact hammer is connected with beater mechanism, and box body blind end arranges coal petrography sample and foil gauge, arranges water inlet and outlet in box body side.The present invention simplifies experimentation based on on-the-spot complex conditions, build water-filling pressure-bearing solid-liquid coupling blast mechanism in indoor Blasting simulation experiment porch further investigation coal petrography hole, excavate water-filling pressure-bearing blasting technique feature in coal petrography hole, for determining that the popularization of reasonable blasting parameter and Novel explosion technology provides foundation.
Description
Technical field
The present invention relates to water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole, it is possible to achieve in coal petrography hole, water-filling pressure-bearing is solid
The PHYSICAL MODELING OF IN of liquid coupling blast action mechanism.
Background technology
The presplitting of hard coal petrography controls, pushes up presplitting and recovery, deep heavily stressed release transfer and the dynamic load preventing and treating etc. of coal,
The major issue often faced in Jun Shi China Modern Pit safety and high efficiency.Along with developing rapidly of economic construction, rock
Stone blasting technique is applied widely in fields such as water conservancy, water power, mine, traffic, brings huge economy and society's effect
Benefit, but the popularization and application that this technology is in the complex environment of colliery are but by a definite limitation, under the conditions of the deep hole of coal seam
The operation such as drilling via formations and powder charge sealing of hole all there is bigger difficulty, and hydraulic pressure demolition Incoercibility based on water and inertia thereof
Effect, its demolition effect is higher than conventional charge blasting condition in hole, but due to tradition hydraulic pressure demolition cumbersome, boring note
It is limited that water seal hole operation and equipment are equipped with, and this technology is not the most fully realized in coal production and applies.Therefore, coal
Improvement conventional blast technology is needed in ore deposit badly in producing, to reach low consumption, dynamical coal petrography explosion prevention effect.
In country rock hole, the explosion of water-filling pressure-bearing is on the basis of summing up conventional charge explosion and hydraulic pressure demolition technological merit, carries
Water-filling pressure-bearing New Blasting Technique in the coal petrography hole gone out, is based primarily upon the high density of water, Incoercibility, efficient uniform posting
Principle is split in " water wedge " increasing of characteristic and hole wall breakage country rock soakage layer porous dehiscence gap water under high pressure.Its feature is in former boring
In air dielectric or hydrostatic medium generation, the natural impedance of propagation of explosion medium in raising hole, minimizing blasting energy lost, and adds with artesian water medium
In strong hole, the broken rock of explosion wave guides, and gives full play to " the water wedge " of pressure-bearing crevice water in hole wall country rock soakage layer and increase and split
With uniform posting effect, increase country rock and rupture scope, reduce coal petrography unit volume explosive charge, preferably realize the super dynamic load work that explodes
Static rock breaking efficiency under with, simplification deep hole explosive operation, and the cooling and isolation, effectively filtration and suppression by artesian water is high
The generation of the noxious products such as temperature, spark, harmful gas and slungshot, improves bursting work environment, ensures that mine safety efficiently produces.
On this basis, for further investigation coal petrography hole in water-filling pressure-bearing solid-liquid coupling blast action mechanism, need to be at laboratory
Water-filling pressure-bearing blasting process in interior simulation coal petrography hole, it is achieved in hole, the physical modeling of water-filling pressure-bearing blasting process analyzes, for determining
Reasonably the popularization of blasting parameter and Novel explosion technology provides experimental basis.
Summary of the invention
Goal of the invention: it is an object of the present invention to provide a kind of water-filling pressure-bearing solid-liquid coupling explosion in sunykatuib analysis coal petrography hole
The analog of process.
To achieve these goals, present invention employs following technical scheme: water-filling pressure-bearing explosion in a kind of coal petrography hole
Analog, including box body, impact hammer, coal petrography sample and foil gauge, the open at one end of box body, the other end closes, impact hammer
Head is put in box body by box body open end, and the shank of impact hammer is connected with beater mechanism, and box body blind end arranges coal petrography sample,
Post foil gauge on coal petrography sample, water inlet and outlet are set in box body side.
Further, also including that water layer thickness regulating part, water layer thickness regulating part arrange cannelure, the open end of box body is stretched
Enter in the cannelure of water layer thickness regulating part, and make the medial wall of cannelure prop up the head of impact hammer, the lateral wall of cannelure
Interval arranges multiple rows of adjustment hole, and the position that the open end of box body is corresponding with adjustment hole arranges row's bolt hole.
Further, described beater mechanism uses Hopkinson pressure bar experimental system, by Hopkinson pressure bar experimental system
The shank of incident bar and impact hammer fix, and incident bar axis and impact hammer dead in line.
Further, described water inlet arranges water inlet check valve, and water inlet check valve connects servo water pump, described water outlet
Mouth arranges outlet stop valve.
Further, described box body side arranges fairlead, and fairlead arranges seal buckle, and described foil gauge goes between by drawing
String holes is connected with ultrahigh speed dynamic signal acquisition instrument.
Further, the external edge of head of described impact hammer arranges sealing ring.
Further, foil gauge is posted inside described box body.
Beneficial effect: the present invention simplifies experimentation based on on-the-spot complex conditions, builds indoor Blasting simulation experiment porch
Water-filling pressure-bearing solid-liquid coupling blast mechanism in further investigation coal petrography hole, excavates water-filling pressure-bearing blasting technique feature in coal petrography hole, for
Determine that the popularization of reasonable blasting parameter and Novel explosion technology provides foundation.
Accompanying drawing explanation
Fig. 1 is the installation diagram of water-filling pressure-bearing Blasting simulation device in coal petrography hole；
Fig. 2 is the front view of Blasting simulation device box body；
Fig. 3 is the side view of Blasting simulation device box body；
Fig. 4 is the front view of Blasting simulation device impact hammer；
Fig. 5 is the side view of Blasting simulation device impact hammer；
Fig. 6 is the front view of water layer thickness regulating part；
Fig. 7 is the side view of water layer thickness regulating part.
In figure: 1-box body, 2-water layer thickness regulating part, 3-adjustment hole, 4-impact hammer, 5-bolt hole, 6-water inlet, 7-goes out
The mouth of a river, 8-nut, 9-sealing ring, 10-incident bar, 11-fairlead, 12-seal buckle, 13-coal petrography sample, 14-artesian water, 15-
Foil gauge, 16-water inlet check valve, 17-outlet stop valve, 18-cannelure.
Detailed description of the invention:
Below in conjunction with the accompanying drawings the present invention is done and further explain.
As Fig. 1 is to shown in 7, and water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole of the present invention, including box body 1, shock
Hammer 4, coal petrography sample 13, foil gauge 15 and water layer thickness regulating part 2.
Box body 1 is to be welded with base by thick-walled seamless steel pipes, the open at one end of box body 1, and the other end is closed.
The head of impact hammer 4 is put in box body 1 by box body 1 open end, and in the external edge of head setting of described impact hammer 4
Sealing ring 9.The shank of impact hammer 4 is connected with beater mechanism, and described beater mechanism uses Hopkinson pressure bar experimental system, will suddenly
The incident bar 10 of Pu Jinsen depression bar experimental system is fixed with the shank of impact hammer 4, and incident bar 10 axis and impact hammer 4 axis
Overlap.
Coal petrography sample 13 is set at box body 1 blind end, on coal petrography sample 13 and posts foil gauge 15, at box inside box body 1
Body 1 side arranges water inlet 6, outlet 7 and fairlead 11.Described water inlet 6 arranges water inlet check valve 16, and water inlet is unidirectional
Valve 16 connects servo water pump, and described outlet 7 arranges outlet stop valve 17, described foil gauge 15 go between by fairlead 11 with
Ultrahigh speed dynamic signal acquisition instrument connects.
Water layer thickness regulating part 2 arranges cannelure 18, and the open end of box body 1 stretches into the cannelure of water layer thickness regulating part 2
In 18, and making the medial wall of cannelure 18 prop up the head of impact hammer 4, the interval, lateral wall of cannelure 18 arranges multiple rows of adjustment hole
3, the open end of box body 1 position corresponding with adjustment hole 3 arranges row's bolt hole 5.
It is as follows that analog of the present invention is embodied as step:
1), protect according to incident bar 10 axis of requirement of experiment, experimental provision impact hammer 4 axis and Hopkinson pressure bar system
Hold on same level straight line, sealing ring 9 is installed in the annular groove of impact hammer 4 external edge of head, tests its bidirectional-movement shape
To the sealing of artesian water in box body under state；
2), tested after take out impact hammer 4, place bottom box body and post the coal and rock sample 13 of foil gauge 15, and
In box body, on coal petrography analog material paster, subsidize foil gauge 15 measure the propagation posting characteristic of artesian water medium wave, the most again pacify
Dress impact hammer 4, and on box body 1 and water layer thickness regulating part 2, choose adjustment hole 3 and the screwed hole 5 of correspondence, use nut 8 solid
Determine water layer thickness regulating part 2；
3), open water inlet check valve 16 and water outlet stop valve 17, set the operating pressure of servo water pump, start low stream
Amount supplies water, and when closing outlet stop valve 17 after outlet 7 water outlet and stability of flow, now persistently injects artesian water in box body 1
14 until preset pressure；
4), foil gauge lead-in wire being connected to super dynamic signal acquisition system, in treating box body 1, artesian water 14 is in voltage stabilizing state
After, open Hopkinson pressure bar experimental system, impact hammer 4 moment in box body obtains the surge on incident bar 10, simulation
Explosion stress wave acts on the artesian water 14 in box body 1 and coal and rock sample 13, ultrahigh speed dynamic signal acquisition instrument synchronous acquisition
Data message；
5), after in coal petrography hole, water-filling pressure-bearing Blasting simulation has been tested, the stop valve 17 opening box body 1 outlet side is released
Put the artesian water 14 in box body, dismounting water layer thickness regulating part 2 and impact hammer 4, hourly observation coal and rock sample 13 damage-form；
6), repeat the above steps carries out the water-filling pressure-bearing Blasting simulation experiment of different coal petrography sample 13.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. water-filling pressure-bearing Blasting simulation device in a coal petrography hole, it is characterised in that: include box body (1), impact hammer (4), coal petrography
Sample (13) and foil gauge (15), the open at one end of box body (1), other end closing, the head of impact hammer (4) is opened by box body (1)
Beginning puts in box body (1), and the shank of impact hammer (4) is connected with beater mechanism, and box body (1) blind end arranges coal petrography sample
(13), coal petrography sample (13) posts foil gauge (15), water inlet (6) and outlet (7) are set in box body (1) side.
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: also include water
Layer thickness regulating part (2), water layer thickness regulating part (2) arranges cannelure (18), and the open end of box body (1) stretches into water layer thickness and adjusts
In the cannelure (18) of joint part (2), and the medial wall of cannelure (18) is made to prop up the head of impact hammer (4), cannelure (18)
Interval, lateral wall arranges multiple rows of adjustment hole (3), and the open end of box body (1) position corresponding with adjustment hole (3) arranges row's spiral shell
Keyhole (5).
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: described impact
Mechanism uses Hopkinson pressure bar experimental system, by the incident bar (10) of Hopkinson pressure bar experimental system and impact hammer (2)
Shank is fixed, and incident bar (10) axis and impact hammer (4) dead in line.
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: described water inlet
Mouth (6) arranges water inlet check valve (16), and water inlet check valve (16) connects servo water pump, and described outlet (7) arranges water outlet
Mouth stop valve (17).
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: described box body
(1) side arranges fairlead (11), and fairlead (11) arranges seal buckle (12), and described foil gauge (15) lead-in wire passes through fairlead
(11) it is connected with ultrahigh speed dynamic signal acquisition instrument.
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: described shock
The external edge of head of hammer (2) arranges sealing ring (9).
Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole the most according to claim 1, it is characterised in that: described box body
(1) foil gauge (15) is posted in inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389432.5A CN106092626B (en) | 2016-06-02 | 2016-06-02 | Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389432.5A CN106092626B (en) | 2016-06-02 | 2016-06-02 | Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106092626A true CN106092626A (en) | 2016-11-09 |
| CN106092626B CN106092626B (en) | 2018-08-07 |
Family
ID=57448048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610389432.5A Active CN106092626B (en) | 2016-06-02 | 2016-06-02 | Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106092626B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764641A (en) * | 2017-09-28 | 2018-03-06 | 清华大学 | The synergy of oil pressure hydraulic pressure aids in split hopkinson press bar confined pressure bringing device |
| CN108061495A (en) * | 2017-10-24 | 2018-05-22 | 中国矿业大学 | A kind of breast wall apparatus and bore hole pressure test method |
| CN109342201A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Rock closing crack hydraulic pressure transient changing test device and method under shock loading |
| CN109883599A (en) * | 2019-03-12 | 2019-06-14 | 哈尔滨工程大学 | A kind of test method influenced based on the water surface burst of theory of stress wave energy uprising on seabed tunnel |
| CN112539992A (en) * | 2020-12-02 | 2021-03-23 | 山东科技大学 | Hopkinson pressure bar experiment multistage pulse loading device and experiment method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278404A (en) * | 2013-05-20 | 2013-09-04 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN203798679U (en) * | 2014-03-01 | 2014-08-27 | 安徽理工大学 | Measuring device for simulating coal seam hydro-fracture to induce surrounding rock stress changes |
| CN104865176A (en) * | 2015-05-27 | 2015-08-26 | 河南理工大学 | Seepage experiment system and method for gas-containing coal under action of impact load |
| CN204789263U (en) * | 2015-06-23 | 2015-11-18 | 安徽理工大学 | Pressure -bearing rock failure mechanism of rock unstability process and developments infiltration characteristic test device |
| CN105092386A (en) * | 2015-08-06 | 2015-11-25 | 山东科技大学 | High-pressure water sealing device for rock sample and use method |
-
2016
- 2016-06-02 CN CN201610389432.5A patent/CN106092626B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278404A (en) * | 2013-05-20 | 2013-09-04 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN203798679U (en) * | 2014-03-01 | 2014-08-27 | 安徽理工大学 | Measuring device for simulating coal seam hydro-fracture to induce surrounding rock stress changes |
| CN104865176A (en) * | 2015-05-27 | 2015-08-26 | 河南理工大学 | Seepage experiment system and method for gas-containing coal under action of impact load |
| CN204789263U (en) * | 2015-06-23 | 2015-11-18 | 安徽理工大学 | Pressure -bearing rock failure mechanism of rock unstability process and developments infiltration characteristic test device |
| CN105092386A (en) * | 2015-08-06 | 2015-11-25 | 山东科技大学 | High-pressure water sealing device for rock sample and use method |
Non-Patent Citations (1)
| Title |
|---|
| 何广沂、李义: "露天深孔水压***模拟试验应变测试", 《工程***》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764641A (en) * | 2017-09-28 | 2018-03-06 | 清华大学 | The synergy of oil pressure hydraulic pressure aids in split hopkinson press bar confined pressure bringing device |
| CN108061495A (en) * | 2017-10-24 | 2018-05-22 | 中国矿业大学 | A kind of breast wall apparatus and bore hole pressure test method |
| CN108061495B (en) * | 2017-10-24 | 2018-08-28 | 中国矿业大学 | A kind of breast wall apparatus and bore hole pressure test method |
| CN109342201A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Rock closing crack hydraulic pressure transient changing test device and method under shock loading |
| CN109342201B (en) * | 2018-11-07 | 2024-06-11 | 湖南科技大学 | Device and method for testing transient change of water pressure of rock sealing crack under impact load |
| CN109883599A (en) * | 2019-03-12 | 2019-06-14 | 哈尔滨工程大学 | A kind of test method influenced based on the water surface burst of theory of stress wave energy uprising on seabed tunnel |
| CN112539992A (en) * | 2020-12-02 | 2021-03-23 | 山东科技大学 | Hopkinson pressure bar experiment multistage pulse loading device and experiment method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106092626B (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106092626A (en) | Water-filling pressure-bearing Blasting simulation device in a kind of coal petrography hole | |
| Huang et al. | Experimental investigation on the basic law of hydraulic fracturing after water pressure control blasting | |
| Zou et al. | Novel integrated techniques of drilling–slotting–separation-sealing for enhanced coal bed methane recovery in underground coal mines | |
| Huang et al. | Hydraulic fracturing after water pressure control blasting for increased fracturing | |
| CN101813002B (en) | Coal seam pre-splitting method based on gas extraction | |
| CN105971660B (en) | Ultrasonic cavitation and hydraulic fracturing joint incentive coal bed gas pumping method | |
| CN104061014B (en) | A kind of coal seam anti-reflection experimental device based on high electric field pulse | |
| WO2019205558A1 (en) | Method and device for controlling top coal caving performance by means of pulse hydraulic fracturing | |
| CN105239983B (en) | A kind of presplitting weakens anti-reflection method with the low air permeability coal seam that high pressure water injection is combined | |
| CN106930744A (en) | A kind of millisecond multistage directional blasting dry ice fracturing method and blasting cartridge | |
| CN101338999B (en) | Method for blasting seepage enhancement for low infiltration sandrock -type uranium deposit | |
| CN104847326B (en) | Blocking type hydraulic pulse generation device and method | |
| CN104500019A (en) | Reinforced anti-reflection method for promoting gas extraction | |
| Huang et al. | Experimental investigation on the basic law of the fracture spatial morphology for water pressure blasting in a drillhole under true triaxial stress | |
| WO2024077842A1 (en) | Rock stratum fracturing method and equipment using variable-frequency pulse fracture network | |
| CN110388206A (en) | A kind of method and apparatus that coal column is left in the residual exploiting field of plasma uplink fracturing | |
| CN102817633B (en) | The device drawing out methane and the pre-splitting method of the controlled blasting of deep hole crack | |
| CN108301811A (en) | A kind of efficient pumping method of hypotonicity coal-bed gas | |
| CN1904308A (en) | Blasting type cave well completion technological method of coal layer gas well | |
| CN102200002A (en) | method and device for sealing upward hole at high pressure by sections | |
| CN204085346U (en) | Quick blocking water filling spalling tubulose perforation plugging device | |
| CN115522905B (en) | Methane explosion fracturing device for shale gas reservoir and control method thereof | |
| CN109323971A (en) | A kind of rock stratum bottom plate seepage flow gushing water experimental rig and test method | |
| CN207144998U (en) | Mining drilling gas buffers release of pressure drainage device | |
| CN105156134A (en) | High-pressure gas multistage pre-splitting grouting transformation method for surrounding rock of deep soft rock roadways |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |