CN104567568B - A kind of big gun hole plugging device and method - Google Patents
A kind of big gun hole plugging device and method Download PDFInfo
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- CN104567568B CN104567568B CN201410799965.1A CN201410799965A CN104567568B CN 104567568 B CN104567568 B CN 104567568B CN 201410799965 A CN201410799965 A CN 201410799965A CN 104567568 B CN104567568 B CN 104567568B
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- closure part
- big gun
- gun hole
- plugging device
- hole
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Abstract
The invention discloses a kind of big gun hole plugging device and method, including the first closure part and near big gun aperture and second closure part fixing with the inwall in big gun hole, first closure part matches with the aperture in big gun hole with the circumferential profile of the second closure part, first closure part has the angled first surface with the axis in big gun hole, second closure part has angled second surface, the first closure part and the second closure part with the axis in big gun hole and contacts with second surface formation face each other by first surface.In blasting process, first closure part is due to by the pressure of detonation gas in big gun hole, thus move along second surface, there is the relative changing of the relative positions with the second closure part in the i.e. first closure part so that the first closure part applies normal pressure, owing to the pressure of detonation gas is bigger to the inwall in big gun hole, thus the frictional force that produces is the biggest, it is outside mobile to big gun hole that this frictional force slow down the first closure part and the second closure part, thus adds the action time of detonation gas, has reached good demolition effect.
Description
Technical field
The present invention relates to deep hole blasting field, in particular it relates to a kind of big gun hole plugging device and method.
Background technology
Deep hole blasting technology is usually applied to colliery, such as, and the ultralong deep hole in the top board overhead caving, tunnel in colliery
Relieving shot or tunnel in for Stress Release alleviate stress concentrate when all can use deep hole blasting.And big gun hole envelope
The quality of stifled effect is the key point of deep hole blasting, the brightest especially for the special Deephole pre-splitting blasting more than more than 30 meters
Aobvious, this is because dose is bigger in the special Deephole pre-splitting blasting big gun hole more than more than 30 meters, only big gun hole is carried out intact
Closure, the action time of detonation gas could be increased, thus obtain preferable Pre-splitting Blasting Effect.
Traditional, generally use stemming closure big gun hole, but only rely on the frictional force of itself and big gun hole wall due to stemming
Blocking detonation gas, in blasting process, stemming is compacted under high pressure detonation gas effect, then huge at detonation gas
Obtain kinetic energy under pressure effect, thus move to the direction, aperture in big gun hole.But the frictional force only by stemming closure big gun hole
Not, stemming can be produced by boasting by detonation gas, and the plugging action time is shorter, and demolition effect is poor.To this end, prior art also has
Have employed and by cement mortar, big gun hole is blocked, such as, in big gun hole, pour into cement mortar, after it solidifies, carry out explosion
Operation.But, owing to the setting time of cement mortar is not easy to grasp, above-mentioned closure mode easily occurs that cement mortar is table
Face solidifies and just carries out blast operations in the case of internal not solidification, does not the most play good plugging effect, demolition effect
The most as one wishes.
Summary of the invention
It is an object of the invention to provide a kind of big gun hole plugging device and method, to overcome in prior art owing to failing fully
Closure big gun hole and action time of detonation gas of causing is short, the poor problem of demolition effect.
To achieve these goals, the present invention provides a kind of big gun hole plugging device, and this big gun hole plugging device includes the first envelope
The second closure part that stifled portion and the inwall near big gun aperture and with big gun hole are fixed, described first closure part and described second closure
The circumferential profile in portion matches with the aperture in described big gun hole, and described first closure part has angled with the axis in described big gun hole
First surface, described second closure part has an angled second surface of axis with described big gun hole, described first closure part and
Described second closure part forms face each other by described first surface with second surface and contacts.
Preferably, described first closure part is provided with for through detonator on the correspondence position of described second closure part
The through hole of payment to a porter, described through hole is arranged along the axial direction in described big gun hole.
Preferably, the end face of the position being provided with described through hole of described first closure part is plane, the one of described end face
Side is connected with the perisporium of described first closure part, and opposite side is connected with described first surface, and described end face is provided with fixed part, institute
State the stay cord being fixed with on fixed part for positioning described first closure part.
Preferably, the angle of the axis in described first surface and described big gun hole and described second surface and described big gun hole
The angle of axis is 18 °-30 °.
Preferably, the inwall in described second closure part and described big gun hole is fixed by binding agent, described second closure part
Side is provided with the first groove for placing described binding agent.
Preferably, described first surface and described second surface are shiny surface.
Preferably, described first surface and the one in described second surface inclining along described first surface or second surface
Tilted direction is provided with groove, and another one is provided with for the track with described groove match.
Preferably, described first closure part is fixed with described second closure part.
Preferably, described first closure part is bolted with described second closure part.
Preferably, this big gun hole plugging device includes being arranged at the opposing with described second closure part of described first closure part
Side also is used for sealing the inwall in described big gun hole and the sealing of described first closure part.
Preferably, the end face of the side opposing with described second closure part of described first closure part is plane, and at this
The second groove it is provided with in plane.
Preferably, the side deviating from described first closure part of described second closure part is provided with for facilitating tamper by described
Big gun hole plugging device is pushed to the 3rd groove in described big gun hole.
Preferably, described first closure part is concrete or mortar material with the material of described second closure part, or,
Described first closure part and/or described second closure part have metal shell, the inside of its metal shell be cast with concrete or
Mortar.
The present invention also provides for a kind of big gun hole method for blocking, and described method for blocking comprises the following steps:
S1: send into the appointment position in described first closure part and the second closure part to described big gun hole and make described first envelope
The first surface in stifled portion forms face with the second surface of described second closure part and contacts；
S2: the inwall of fixing described second closure part to described big gun hole.
Preferably, the end face of the position being provided with described through hole of described first closure part is plane, the one of described end face
Side is connected with the perisporium of described first closure part, and opposite side is connected with described first surface, and described end face is provided with fixed part, institute
State the stay cord being fixed with on fixed part for positioning described first closure part；Described method for blocking also includes: in described step S1
Before, first on described fixed part, fix described stay cord, then hold described stay cord by described first closure part and the second closure
Portion sends in described big gun hole.
Preferably, before described method for blocking is additionally included in described step S1, by described first closure part and the second closure
Portion is fixed.
By technique scheme, in blasting process, the first closure part due to by the pressure of detonation gas in big gun hole,
Thus move along second surface, there is the relative changing of the relative positions with the second closure part in the i.e. first closure part so that the first closure part is to big gun hole
Inwall apply normal pressure, thus produce bigger frictional force, this frictional force slow down the first closure part and the second closure part to
Big gun hole is outside mobile, thus adds the action time of detonation gas, has reached good demolition effect.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is scheme of installation (not shown second envelope of the big gun hole plugging device of the detailed description of the invention offer of the present invention
3rd groove in stifled portion).
Fig. 2 is that the big gun hole plugging device in Fig. 1 is by the structural representation after quick-fried raw pressure.
Fig. 3 is the stress schematic diagram of the big gun hole plugging device shown in Fig. 2.
Fig. 4 is the schematic diagram of the second closure part of the big gun hole plugging device shown in Fig. 1.
Fig. 5 is the schematic diagram of the first closure part of the big gun hole plugging device that another embodiment of the present invention provides.
Fig. 6 is the schematic diagram of second closure part corresponding with the first closure part shown in Fig. 5.
Description of reference numerals
11: the first closure parts；12: the second closure parts；12a: the first groove；
12b: the three groove；13: through hole；20: big gun hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, in the case of illustrating on the contrary, the noun of locality of use such as " upper and lower, left and right " typically refers to
With reference to upper and lower, left and right shown in the drawings；It is inside and outside that " inside and outside " refers to relative to the profile of each parts itself.
According to an aspect of the present invention, the present invention provides a kind of big gun hole plugging device, and this big gun hole plugging device includes the
The second closure part 12 that one closure part 11 and the inwall near big gun aperture and with big gun hole 20 are fixed, the first closure part 11 and second
The circumferential profile of closure part 12 matches with the aperture in big gun hole 20, and the first closure part 11 has angled with the axis in big gun hole 20
First surface, the second closure part 12 has the angled second surface with the axis in big gun hole 20, the first closure part 11 and the second envelope
Stifled portion 12 forms face each other by first surface with second surface and contacts.Wherein it is preferred to, first surface and the axis in big gun hole 20
Angle and the angle of axis in second surface and big gun hole 20 be 18 °-30 °, thus beneficially explosion time the first closure part
The stress of 11.
In blasting process, after the base charge of big gun hole, first pass through stemming closure big gun hole 20, then by described big gun hole closure dress
Put between feeding stemming and big gun aperture (as it is shown in figure 1, stemming is not shown), a large amount of when producing after the explosive initiation in big gun hole 20
Detonation gas, the first closure part 11 is due to by the pressure of detonation gas in big gun hole, thus along the second of the second closure part 12
(as shown in Figure 2) is moved on surface, say, that now the first closure part 11 occurs the relative changing of the relative positions with the second closure part 12.Such as Fig. 3
For the stress schematic diagram of the first closure part 11 in blasting process, the pressure P decomposable asymmetric choice net that the first closure part 11 is applied by detonation gas
For the sliding force P ' along second surface, this sliding force P ' (P '=PSin θ), the first closure part 11 is moved also along second surface
The inwall in jam-packed big gun hole 20, so that inwall applying normal pressure N that the first closure part 11 is to big gun hole 20, and the first closure part 11 He
The frictional force F=N μ of the inwall in big gun hole 20=P ' Cos θ=PSin θ Cos θ=μ is (wherein, for 0.5PSin (2 θ)=0.5PSin (2 θ)
μ is coefficient of friction, and θ is the complementary angle of the angle of the axis in first surface or second surface and big gun hole 20), due to detonation gas pressure
P is relatively big, and therefore frictional force F of the inwall in the first closure part 11 and big gun hole 20 is the biggest, and this frictional force F slow down the first closure part
11 and second closure part 12 outside mobile to big gun hole 20, thus add the action time of detonation gas, reached good quick-fried
Broken effect.
As shown in Figure 5 and Figure 6, in order to prevent breaking detonator payment to a porter, right in the first closure part 11 and the second closure part 12
Answering the through hole 13 being provided with on position for through detonator payment to a porter, through hole 13 is arranged along the axial direction in big gun hole 20.Preferably,
A diameter of 8mm-12mm of through hole 13.It addition, the end face of the position being provided with through hole 13 of the first closure part 11 is plane, this end
The side in face is connected with the perisporium of the first closure part 11, and opposite side is connected with first surface, and described end face is provided with fixed part (example
As, becket etc.), fixed part is fixed with the stay cord for positioning the first closure part 11.It is understood that described stay cord
Length at least will be more than the length of the second closure part 12.It should be noted that why by logical for being provided with of the first closure part 11
The end face of the position in hole 13 is set to plane, partly in order to conveniently arrange fixed part, is on the other hand in order to avoid damaging
First closure part 11, such as, if being set to pointed, so by the end of the position being provided with through hole 13 of the first closure part 11
It is easily damaged the first closure part 11.
Wherein, the second closure part 12 can be fixed in several ways with the inwall in big gun hole 20, it is preferable that the second closure part
12 are fixed by binding agent with the inwall in big gun hole 20, and the side of the second closure part 12 is provided with the first groove for placing binding agent
The cross section (intercepting along the face being perpendicular to big gun hole 20 axis) of 12a, this first groove 12a can be semicircle.Described binding agent can
To be cement roll, fast hardening concrete agent or resin explosive roll etc..
In order to make the first closure part 11 move with the inwall in jam-packed big gun hole 20 along second surface smoothly, it is preferable that first
Surface and second surface are shiny surface.Certainly, in order to ensure the direction of motion of the first closure part 11, first surface and the second table
One in face is provided with groove (such as, semi-circular recesses or triangular prismatic type along the incline direction of first surface or second surface
Groove), another one is provided with for the track with groove match.
In order to improve demolition effect, the first closure part 11 can be fixed with the second closure part 12.Such as can pass through glue
With paper or other things, the first surface of the first closure part 11 and the second surface of the second closure part 12 are fixed lightly, when
After first closure part 11 is sent in big gun hole 20 together with the second closure part 12, suddenly to the second closure part 12, deviate from first
The side of closure part 11 applies power (for example, it is possible to being exerted a force the second closure part 12 by the tamper being mentioned below), so that the
One closure part 11 and the second relative changing of the relative positions in closure part 12, so that the inwall in the first jam-packed big gun hole, closure part 11 20.Furthermore it is also possible to
First closure part 11 is bolted with the second closure part 12, so, by tighting a bolt thus to the first closure part 11
(pretightning force can be according to lateral the first closure part 11 produced to the inwall in big gun hole 20 to increase pretightning force with the second closure part 12
Frictional force produced by the country rock self friction angle of the inwall that frictional force is more than big gun hole 20 determines), to make the first closure in advance
Portion 11 and the second relative changing of the relative positions in closure part 12, so that the inwall in the first jam-packed big gun hole, closure part 11 20, reach good closure
Effect.
It addition, in order to improve plugging effect further, described big gun hole plugging device includes being arranged at the first closure part 11
The side opposing with the second closure part 12 is also used for sealing inwall and the sealing of the first closure part 11 in big gun hole 20, the most permissible
Stop the detonation gas produced to outward leakage.Wherein, described sealing can be soft rubber etc..
Wherein, the end face of the side opposing with the second closure part 12 of the first closure part 11 is plane, and on this plane
It is provided with the second groove, thus increases the lifting surface area of the first closure part 11.
As shown in Figure 4, big gun hole plugging device is pushed in big gun hole 20 by tamper for convenience, can be in the second closure part 12
The side deviating from the first closure part 11 the 3rd groove 12b is set, the diameter of the 3rd groove 12b can be 25mm-60mm.
Furthermore it is preferred that the material of the first closure part 11 and the second closure part 12 is concrete or mortar material, or
Person, the first closure part 11 and/or the second closure part 12 have metal shell, and the inside of its metal shell is cast with concrete or sand
Slurry, and, in order to ensure that the weight of the first closure part 11 and the second closure part 12 can be by the first closure part 11 and the second closure
Portion 12 is set to entity.
According to another aspect of the present invention, the present invention also provides for a kind of big gun hole method for blocking, and described method for blocking includes
Following steps: S1: send into the appointment position in the first closure part 11 and the second 12 to big gun hole, closure part 20 and make the first closure part
The first surface of 11 and the second surface of the second closure part 12 form face contact；S2: fix the second 12 to big gun hole, closure part 20
Inwall.
Blocking big gun hole 20 by said method, in blasting process, the first closure part 11 is by generation in blasting process
The effect of the pressure of detonation gas, thus move along the second surface of the second closure part 12 and make the first closure part 11 and the second closure
There is the relative changing of the relative positions in portion 12, the pressure P that the first closure part 11 is applied by detonation gas can be analyzed to the sliding force along second surface
P ', this sliding force P ' (P '=PSin θ) make the first closure part 11 move along second surface and the inwall in jam-packed big gun hole 20, thus
Make the first closure part 11 that the inwall in big gun hole 20 to apply normal pressure N, and frictional force F of the inwall in the first closure part 11 and big gun hole 20
(wherein, μ is coefficient of friction to=N μ=P ' Cos θ=PSin θ Cos θ=0.5PSin (2 θ)=0.5PSin (2 θ) μ, and θ is the first table
The complementary angle of the angle of the axis in face or second surface and big gun hole 20), owing to detonation gas pressure P is relatively big, therefore the first closure part
11 and frictional force F of inwall in big gun hole 20 the biggest, it is outside mobile to big gun hole 20 that this frictional force F slow down the first closure part, from
And add the action time of detonation gas, reach good demolition effect.
Wherein, in order to position the first closure part 11, in other words, in order to make the first surface and second of the first closure part 11
The second surface of closure part 12 keeps good face contact, and described method for blocking also includes: before described step S1, first solid
Determine fixed pulling rope in portion, then hold stay cord and the first closure part 11 and the second closure part 12 are sent in big gun hole 20.Certainly, in order to
The second surface making the first surface of the first closure part 11 and the second closure part 12 keeps good face contact, it is also possible to by with
Lower method realizes, i.e. before described method for blocking is additionally included in described step S1, by the first closure part 11 and the second closure part 12
Fixing.
Hereinafter the big gun hole method for blocking provided the present invention by specific embodiment is illustrated, needs explanation
It is that following example are only used to describe the present invention in detail, and not limitation of the present invention:
Embodiment 1
Big gun hole 20 is circular hole, its a diameter of 89mm, and accordingly, the first closure part 11 and the second closure part 12 are cylinder
Shape, its diameter is 75-80mm, and (" big gun hole plugging device height " here refers to when first described big gun hole plugging device height
Closure part 11 and the second closure part 12 each other by first surface formed with second surface face contact time, the first closure part 11 and the
The whole height of two closure parts 12) it is 60mm, the angle of the axis in first surface and big gun hole 20 and second surface and big gun hole 20
The angle of axis be 22 °, a diameter of 10mm of described through hole 13, when the cross section of the first groove 12a of the second closure part 12
During for semicircle, its a diameter of 28mm etc..
When big gun hole 20 upwards (" upwards " here refer to the position in big gun aperture less than big gun hole bottom position) tilt and
When the angle of its axis and vertical direction is between 0-90 °, the 3rd groove of the second closure part 12 can be touched by tamper
12b, thus described big gun hole plugging device is shifted onto specify position, the most compacted, finally the second closure part 12 is fixed to big gun hole
The inwall of 20.
Embodiment 2
Big gun hole 20 is circular hole, its a diameter of 89mm, and accordingly, the first closure part 11 and the second closure part 12 are cylinder
Shape, its diameter is 75-80mm, and (" big gun hole plugging device height " here refers to when first described big gun hole plugging device height
Closure part 11 and the second closure part 12 each other by first surface formed with second surface face contact time, the first closure part 11 and the
The whole height of two closure parts 12) it is 60mm, the angle of the axis in first surface and big gun hole 20 and second surface and big gun hole 20
The angle of axis be 18 °, a diameter of 10mm of described through hole 13, when the cross section of the first groove 12a of the second closure part 12
During for semicircle, its a diameter of 28mm etc..
When (" downwards " here refers to the position in big gun aperture and be higher than the position bottom big gun hole) tilts downwards in big gun hole 20,
Described big gun hole plugging device is sent into the mode in big gun hole 20 and is divided into two kinds of situations: 1) axis in big gun hole 20 is big with the angle of vertical direction
In 70 °, now tamper touches the 3rd groove of the second closure part under the deadweight frictional force effect of described big gun hole plugging device
12b, and described big gun hole plugging device is shifted onto specify position, the most compacted, finally the second closure part 12 is fixed to big gun hole 20
Inwall；2) axis in big gun hole 20 and the angle of vertical direction are less than 70 °, for preventing the plugging device landing of described big gun hole, permissible
On fixed part, fixed pulling rope is to ensure that the first closure part 11 contacts with the second closure part 12, and when described big gun hole, plugging device is pushed away
To when specifying position, can firmly hold stay cord, firmly push tamper on one side, thus compacted big gun hole plugging device, finally
Second closure part 12 is fixed to the inwall in big gun hole 20 it addition, the intensity of stay cord is preferably the weight of described big gun hole plugging device
2-3 times.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (14)
1. a big gun hole plugging device, it is characterised in that this big gun hole plugging device includes the first closure part (11) and near big gun
Aperture and second closure part (12) fixing with the inwall of big gun hole (20), described first closure part (11) and described second closure part
(12) circumferential profile matches with the aperture of described big gun hole (20), and described first closure part (11) has and described big gun hole (20)
The angled first surface of axis, described second closure part (12) has and the axis angled second of described big gun hole (20)
Surface, described first closure part (11) and described second closure part (12) are formed each other by described first surface and second surface
Face contacts；
The end face of the position being provided with described through hole (13) of described first closure part (11) is plane, the side of described end face with
The perisporium of described first closure part (11) connects, and opposite side is connected with described first surface, and described end face is provided with fixed part, institute
Stating the stay cord being fixed with on fixed part for positioning described first closure part (11), the length of described stay cord is at least over described
The length of two closure parts (12)；
The inwall of described second closure part (12) and described big gun hole (20) is fixed by binding agent, described second closure part (12)
Side is provided with the first groove (12a) for placing described binding agent.
Big gun hole the most according to claim 1 plugging device, it is characterised in that described first closure part (11) and described second
Being provided with on the correspondence position of closure part (12) for the through hole (13) through detonator payment to a porter, described through hole (13) is along described big gun
The axial direction in hole (20) is arranged.
Big gun hole the most according to claim 1 plugging device, it is characterised in that described first surface and described big gun hole (20)
The angle of the axis of the angle of axis and described second surface and described big gun hole (20) is 18 °-30 °.
4. according to the big gun hole plugging device described in any one in claim 1-3, it is characterised in that described first surface and institute
State second surface and be shiny surface.
5. according to the big gun hole plugging device described in any one in claim 1-3, it is characterised in that described first surface and institute
Stating one in second surface and the incline direction of described first surface or second surface is provided with groove, another one is provided with use
In the track with described groove match.
Big gun hole the most according to claim 5 plugging device, it is characterised in that described first closure part (11) and described second
Closure part (12) is fixed.
Big gun hole the most according to claim 6 plugging device, it is characterised in that described first closure part (11) and described second
Closure part (12) is bolted.
Big gun hole the most according to claim 5 plugging device, it is characterised in that this big gun hole plugging device includes being arranged at described
The side opposing with described second closure part (12) of the first closure part (11) and be used for the inwall sealing described big gun hole (20) with
The sealing of described first closure part (11).
Big gun hole the most according to claim 5 plugging device, it is characterised in that described first closure part (11) with described
The end face of the side that two closure parts (12) are opposing is plane, and is provided with the second groove on this plane.
Big gun hole the most according to claim 5 plugging device, it is characterised in that described second closure part (12) deviate from institute
The side stating the first closure part (11) is provided with for facilitating tamper to be pushed in described big gun hole (20) by described big gun hole plugging device
The 3rd groove (12b).
11. big gun hole according to claim 5 plugging devices, it is characterised in that described first closure part (11) and described the
The material of two closure parts (12) is concrete or mortar material, or, described first closure part (11) and/or described second envelope
Stifled portion (12) has metal shell, and the inside of its metal shell is cast with concrete or mortar.
12. 1 kinds of method for blocking according to the big gun hole plugging device described in claim 1-11 any one, it is characterised in that institute
State method for blocking to comprise the following steps:
S1: send into the appointment position in described first closure part (11) and the second closure part (12) extremely described big gun hole (20) and make institute
The second surface of the first surface and described second closure part (12) of stating the first closure part (11) forms face and contacts；
S2: the inwall of fixing described second closure part (12) to described big gun hole (20).
13. method for blocking according to claim 12, it is characterised in that being provided with of described first closure part (11) is described
The end face of the position of through hole (13) is plane, and the side of described end face is connected with the perisporium of described first closure part (11), another
Side is connected with described first surface, and described end face is provided with fixed part, described fixed part is fixed with for positioning described first
The stay cord of closure part (11)；
Described method for blocking also includes: before described step S1, first fixes described stay cord on described fixed part, then holds
Described first closure part (11) and the second closure part (12) are sent in described big gun hole (20) by described stay cord.
14. method for blocking according to claim 12, it is characterised in that described method for blocking is additionally included in described step S1
Before, described first closure part (11) and the second closure part (12) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799965.1A CN104567568B (en) | 2014-12-19 | 2014-12-19 | A kind of big gun hole plugging device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799965.1A CN104567568B (en) | 2014-12-19 | 2014-12-19 | A kind of big gun hole plugging device and method |
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| Publication Number | Publication Date |
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| CN104567568A CN104567568A (en) | 2015-04-29 |
| CN104567568B true CN104567568B (en) | 2016-08-24 |
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| CN201410799965.1A Expired - Fee Related CN104567568B (en) | 2014-12-19 | 2014-12-19 | A kind of big gun hole plugging device and method |
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| CN105386740B (en) * | 2015-12-21 | 2018-02-13 | 核工业北京化工冶金研究院 | A kind of method at vertical long hole through hole plugging hole bottom |
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| CN203083464U (en) * | 2012-12-18 | 2013-07-24 | 山西大同大学 | Shot hole wedge-shaped body blocking device |
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005071349A1 (en) * | 2004-01-26 | 2005-08-04 | Nxco International Limited | Rock breaking cartridge and use thereof |
| WO2013170294A1 (en) * | 2012-05-17 | 2013-11-21 | Rise Mining Developments Pty Ltd | Stemming plugs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017622A (en) * | 2012-12-18 | 2013-04-03 | 山西大同大学 | Water-resisting returnable multi-stage buffer fractured self-deformation self-latching shot hole stopper |
| CN203083464U (en) * | 2012-12-18 | 2013-07-24 | 山西大同大学 | Shot hole wedge-shaped body blocking device |
| CN103759603A (en) * | 2013-12-23 | 2014-04-30 | 山西潞安环保能源开发股份有限公司 | Self-bursting self-latching hydraulic pressure dust proof friction extrusion bore hole blockage device |
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| CN104567568A (en) | 2015-04-29 |
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