CN104654946A - Rock Blasting Method Using Pipes Embeded In Explosive Layers Of Blast Waterhole - Google Patents
Rock Blasting Method Using Pipes Embeded In Explosive Layers Of Blast Waterhole Download PDFInfo
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- CN104654946A CN104654946A CN201410029339.4A CN201410029339A CN104654946A CN 104654946 A CN104654946 A CN 104654946A CN 201410029339 A CN201410029339 A CN 201410029339A CN 104654946 A CN104654946 A CN 104654946A
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- filling body
- laccolite
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- 239000002360 explosive Substances 0.000 title claims abstract description 180
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005422 blasting Methods 0.000 title claims abstract description 43
- 239000011435 rock Substances 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 120
- 238000004880 explosion Methods 0.000 claims description 57
- 230000000694 effects Effects 0.000 claims description 12
- 238000011068 loading method Methods 0.000 claims description 11
- 238000005474 detonation Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000037452 priming Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920002799 BoPET Polymers 0.000 claims description 2
- 239000005041 Mylar™ Substances 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000004575 stone Substances 0.000 abstract description 13
- 230000001965 increasing effect Effects 0.000 abstract description 10
- 238000013016 damping Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000009514 concussion Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010304 firing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229960003711 glyceryl trinitrate Drugs 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
- E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
- E21B7/1245—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors using explosive means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The present invention relates to a rock blasting method using pipes embedded in explosive layers of blast waterhole, namely relates to a method for implementing the rock blasting by which a pipe body does not deform in the water in the ANFO explosive or gel bulk explosive, and by hiding the tubular pipe body recessed in the water in the water in a blasthole, and utilizing the substance in an explosive layer to fill the pipe body. Therefore, the size of the pipe body is increased correspondingly, by prolonging the filling length of the explosive towards an upper free surface, the transmission area of the laccolite at one side of the free surface at blasting is increased, and the total pressure is increased substantially, and accordingly, the whole stone generation amount at the rock blasting is reduced, the explosive use amount also can be reduced, and the damping and sonic boom are reduced.
Description
Technical field
The present invention relates to a kind of laccolite blasting method, particularly, relate to the laccolite blasting method that the filling body in powder charge layer is buried in a kind of utilization.By the filling body with the diameter less than boring bore is buried in powder charge layer, when laccolite explosion, add specific area, explosive force is made to be distributed to powder charge hole inner rim laccolite equably, thus not only can decay concussion of blasting and sound width, but also according to the volume burying filling body in described explosive, the filling length of explosive can be extended on the upside of blast hole, to increase the transmission area to side, scope of freedom laccolite at explosion time, or reduce the use amount of explosive.
Background technology
According to prior art, widely used the blasting method that laccolite is dug to be comprised: explosive and padding are divided into the General Explosive method of carrying out explosion in two parts filling shot borehole merely; For alleviating vibrations, explosive and padding are alternately loaded spaced loading (desk charge) blasting method carrying out explosion in boring; For arranging presplitting (pre-splitting) blasting method etc. on slope.
Wherein, as shown in Figure 1a, use the General Explosive method of ANFO explosive or (bulk) in bulk explosive mainly in order to carry out forming ladder in outdoor laccolite mining operations, priming 2 and detonator 3, ANFO explosive or bulk explosive 4 are loaded in powder charge hole 1, and to padding 5 bottom concentrate carry out explosion, very large vibrations and explosive sound can be produced like this, and have the danger of dispersing.In addition, compared with drilling depth, because the length of padding 5 is relatively long, therefore explosive force can not touch padding periphery laccolite, not only increase the possibility producing whole stone (=large rock block) like this, but also the excessive use of explosive can be caused because of overcharging.
As shown in Figure 1 b, in order to solve the shortcoming that described General Explosive method exists, the blasting method of spaced loading (desk charge) can be adopted.This blasting method alternately carries out clogging with padding 7 method making explosive layering filling carry out explosion as priming 2 and detonator 3 and ANFO explosive or bulk explosive 6 being loaded in powder charge hole 1, it is that a kind of number of plies according to layered charge loads detonator 3 respectively, then makes explosive in same boring, keep certain time difference interval blast by each detonator thus laccolite carried out to the method for explosion.
This method needs to add according to the number of plies of layered charge to use detonator, and expense therefore can be made significantly to increase.In addition, by quite difficult for the operation that ANFO explosive or bulk explosive 6 and padding 7 carry out alternatively layered filling, the efficiency of construction operation so not only can be reduced, nor economical.In addition, owing to must use identical explosive charge, therefore, laccolite demolition effect is also not so good.
As shown in Figure 2, the above-mentioned blasting method according to prior art, not only the explosion length of explosive in powder charge hole 1 is limited to the length of explosive itself, and compared with drilling depth, the length l of padding 5
1become longer explosion shape, ANFO explosive or bulk explosive 4 tilt on the downside of powder charge hole 1, therefore along with the concentrated filling progressively deepened from horizontal free surface F2, there is the problem greatly increasing earth shock.
In addition, when explosive charge, downside centered by blast warning line L can be broken into little rock block as fritter generating portion A, but explosive force but can not touch the upside of blast warning line L, the i.e. periphery laccolite of padding 5, therefore can form the region of a sheet of bulk generating portion B be made up of the block whole stone of large rock.After explosion, in order to process these whole stone, not only needing again to carry out bursting work, but also can blast cost be increased.
Application technology inserts the technology forming powder charge hole and carry out exploding as the filling body and explosive that form artificial freedom in minor affairs face alternately being distinguished in holing, adopt following methods, namely use the body of being filled by certain material to be loaded in container by regulation shape by explosive, or use filling body that diameter is identical or slightly little with bore of holing merely to the packing method that explosive supports.Explosion time, by extending the filling length of explosive, not only can reduce the explosive use amount that need not consume, but also explosive can be made to disperse greatly to alleviate concussion of blasting.In addition, the generation of whole stone can also be reduced, reach desirable demolition effect.
In addition, the loading position of powder charge layer and filling body layer clearly makes a distinction by this technology in powder charge hole, owing to only explosive being loaded continuously along filling tube wall, therefore can explode by induced detonation mode, and the danger of miss-firing of filling body blasting method existence can be reduced to greatest extent.
In addition, the airduct loaded in powder charge hole inserts by the airbag that the present inventor utilizes diameter less than boring bore.Like this, not only airbag more easily inserts in powder charge hole, and is also more prone to pulverous ANFO explosive or gelatinous bulk explosive to load at the scene.In addition, due to explosive is inserted in powder charge hole continuously densely, therefore greatly can improve the induced detonation power of explosive, eliminate the danger of miss-firing.Make explosive force stepless action in the technology of hole wall about explosion time, utilize the laccolite blasting method of burying airbag in powder charge layer to it is also proposed application.But this method airduct in water-filled water hole can not sink, therefore there is shortcoming airbag can not inserted.In addition, when explosive charge, described airbag layer also can reduce explosive force, thus also has the shortcoming of the force of explosion alleviated laccolite.
Alleged below " scope of freedom ", refer to the face that laccolite contacts with extraneous (air or water), this scope of freedom can have a huge impact explosion, and demolition effect strengthens with the quantity on the scope of freedom and the close degree on explosive position and the scope of freedom.This is because side, the scope of freedom does not have resistance, the stress that explosion energy acts on laccolite generation is larger.In addition, so-called " gross pressure ", refer to that unit explosive acts on the strength in boring, so-called " specific area ", refers to the laccolite area of explosion time explosive force effect, so-called " induced detonation ", when referring to 1 place's explosive charge, make other explosive produce the phenomenon of detonation by influence by air, water or other medium, so-called " warning line ", refers to the beeline between the scope of freedom and explosive center.
Summary of the invention
Technical problem
Therefore, the object of the invention is to, a kind of laccolite blasting method is provided.Inner at the explosive of powder charge hole filling, being buried than the little filling body of more than at least 1 layer of boring bore by diameter by specific length has in the blast hole of water in amassing, hand packing body layer is formed in powder charge layer, thus while increase explosive charge length, make the explosive force of explosive be distributed to periphery laccolite in powder charge hole equably, increase the degree of breaking of laccolite.
Another object of the present invention is, provides a kind of laccolite blasting method.A filling body thinner than boring bore or multiple filling body being buried has in the powder charge hole of water in long-pending, not only can reduce explosive payload according to the volume of the filling body buried in powder charge layer, and the filling body buried in powder charge layer can also increase the length of powder charge.
Another object of the present invention is, provides the laccolite blasting method that filling body in powder charge layer is buried in a kind of utilization.Loaded near the scope of freedom by explosive, increase the specific area that explosion time explosive force directly acts on laccolite, significantly the transmission area of expansion blast to side, Vertical Free face laccolite, increases gross pressure greatly.Thus be not only more prone to destroy laccolite, but also the generation of whole stone can be greatly reduced by the length shortening padding.
Another object of the present invention is, provides the laccolite blasting method that filling body in powder charge layer is buried in a kind of utilization.ANFO explosive or bulk explosive are inserted continuously densely the peripheral space of filling body in the powder charge hole being seated in ponding, compared with other explosive, the induced detonation degree of the lower ANFO explosive of induced detonation degree or bulk explosive can be improved, thus eliminate the danger that in water hole or dry hole, explosive miss-fires.
Technical scheme
To achieve these goals, comprise according to laccolite blasting method of the present invention: by the step that prescribed depth and regulation arrangement are holed on the laccolite that needs intercept; Successively priming and detonator and ANFO explosive or gel bulk explosive are packed into the dynamite charge step being formed in the inherent powder charge layer of described boring and bury the powder charge hole of airbag; After the upper strata of described powder charge layer being clogged with padding, by the detonation step of blaster by cap sensitive.
Namely, more than at least 1 layer one less than boring bore for diameter thin filling body or multiple filling body bury in powder charge layer by the present invention, in powder charge layer, form airtight space layer, thus can extend to upside according to the filling length of the volume of filling body layer by explosive, increase explosion length.Along with the increase of explosion length, the explosive force of explosive not only can be made to greatest extent to disperse in hole, but also concussion of blasting can be made to be disperseed to the 2-3 scope of freedom by air layer.In addition, the generation of explosive payload and whole stone can also be greatly reduced.
According to the present invention, at demolition site bottom, thin filling body less than boring bore for diameter is inserted into after in the long-pending powder charge hole having water, filling ANFO explosive and bulk explosive, filling body is buried in the powder charge layer in water, the explosive payload of unit volume can be reduced to greatest extent, when explosive charge, explosion length can be increased to greatest extent.In addition, the position of explosive is loaded near 2 ~ 3 scope of freedoms.
In addition, according to blasting method of the present invention, long-pending in dry hole have in the blast hole of water, the airduct that diameter is identical with the boring bore loaded in the powder charge hole of described earlier application technology swims in waterborne, thus overcomes the shortcoming that the shortcoming that can not be used for blast hole before this and airduct make the explosive force in dry hole reduce.By in the powder charge hole in explosive continuously filling water inlet densely or in dry hole, extend the loaded length in water or in dry hole, thus the effect that enhancing explosion time makes laccolite break.
In addition, when holing in General Explosive operation, if each boring bore is not identical, the volume of the ANFO explosive then loaded or the explosive charge of bulk explosive is not identical with the situation change in each hole yet, regulates like this with regard to not easily passing through the explosive charge of technological means to pulverous ANFO explosive or bulk explosive.But, the present invention is by regulating diameter to adjust than the little filling pipe body length of boring bore and diameter or the difference of filling body number to water borehole blasting hole explosive charge of burying, thus become, can overcome because position, padding bottom makes filling situation inconsistent with the change of each powder charge hole, thus the unique loading method causing irregular large rock mass to produce.
Beneficial effect
The present invention has following good result:
First, during laccolite explosion, more than the 1 layer body being compared the little thin filling body of boring bore by diameter or be made up of multiple filling body is at least buried in powder charge hole, air layer is formed in powder charge layer, like this while prolongation explosive charge length, because explosive loads near the scope of freedom, specific area can be increased, the explosive force of explosive is disperseed by air layer in powder charge hole, thus decay concussion of blasting and explosive sound.
Second, due to ANFO explosive and gelatinous bulk explosive are packed in water or in the powder charge hole of dry hole continuously densely, the induced detonation function of the explosive force ANFO explosive more weak than nitroglycerine system explosive and gel bulk explosive can be strengthened, eliminate the danger of miss-firing, and concussion of blasting can be disperseed by the filling body buried in powder charge layer, thus improve demolition effect.
3rd, by extending the explosive charge length with the filling of filling body in powder charge hole or powder charge layer, at the transmission area of explosion time expansion to side, the scope of freedom, gross pressure can be increased, make explosive force all only act on breaking of laccolite, thus reach the demolition effect significantly reducing whole stone generation.
4th, during explosive charge, add the area (=specific area) that explosive force touches laccolite, while guaranteeing that filling body buries in powder charge layer, owing to being load near the scope of freedom, therefore unit volume explosive use amount reduces more than 20 ~ 30%.
Particularly, when blasting method of the present invention is applied to stone pit, owing to not needing enforcement 2 separate explosion (jade explosion) operation, the public hazards (explosive sound) caused by 2 separate explosions therefore can not be produced.In addition, the funds needed for 2 separate explosions can also be reduced, thus can be cost-saving, reduce operating expenses.
Accompanying drawing explanation
Fig. 1 a is the profile according to prior art bulk explosive blast hole explosive charge method;
Fig. 1 b is the profile according to prior art bulk explosive spaced loading method;
Fig. 2 a embodies the powder charge downhole explosion conceptual schematic view according to prior art blasting method;
Fig. 2 b is airduct blasting procedure schematic diagram in the powder charge hole according to prior art blasting method;
Fig. 3 is the profile carrying out the various embodiments of burying setting according to the present invention at the filling body of multiple position;
Fig. 4 embodies the airduct self-supporting explosion conceptual schematic view according to bulk explosive blasting method;
1 elongated filling body is buried according to the present invention the embodiment profile carrying out loading in the powder charge layer in powder charge hole by Fig. 5;
Fig. 6 is the standard schematic diagram of filling body;
Fig. 6 a is that display will combine the rear partial perspective view inserting state in powder charge hole outside supporter and airduct of the present invention;
Fig. 7 is the embodiment profile buried in the explosive of powder charge hole by " Z " font by thin filling body according to the present invention.
Description of reference numerals
11: powder charge hole 12: priming 13: detonator
14a ~ 14m: powder charge layer 15: filling body 16: supporter
16a: through hole 16b: circular stay 16c: support portion
17: lid 18: padding F1: Vertical Free face
F2: horizontal free surface L: blast warning line A: fritter generating portion
B: bulk (whole stone) generating portion
Detailed description of the invention
Below, with reference to the accompanying drawings technological maheup of the present invention is described in detail.
As shown in Figure 3 to Figure 4, the invention is characterized in, comprising: by the step that prescribed depth and regulation arrangement are holed on the laccolite that needs intercept; Respectively priming 12 and detonator 13 and dynamite charge are entered in described boring, by more than at least 1 its diameter, and inside less than boring bore is with after in the filling body patchhole of prescribed level body layer, the outside of the filling body in hole is inserted in, for guaranteeing that filling body buries the step loading filling body and explosive formation powder charge hole 11 in powder charge layer 14 inside successively with explosive parcel; The filling step loaded in described powder charge hole 11 on the upside of explosive is clogged with padding 18; With blaster, detonator 13 is ignited, make the detonation step that the priming in powder charge hole 11 and explosive are blasted.Thus, according to the filling length of volumes lengthen explosive of burying filling body in described powder charge layer, thus the transmission area to side, scope of freedom laccolite can be increased at explosion time, reach desirable demolition effect.
That is, the present invention has ANFO explosive or gel bulk explosive can produce corresponding explosive force in powder charge hole 11 implode explosion form according to the form by the filling pipe body deformability buried in powder charge layer.
Below, will be described laccolite blasting principle of the present invention.
As shown in Figure 3, at powder charge hole inner bottom part, utilize can not be out of shape or add in Corvic (Polyvinyl) PVC or PET mylar (Polyethylen eterephthalate) material that can not be destroyed gravel etc. in water can the comparatively heavy material of submerged, hole inwall is supported in the supporter that and thin filling body 15 that is that have specific length less than boring bore is inserted into by diameter.
Then, detonator 13 and priming 12 are packed on the upside of described 1st powder charge layer 14a, and load ANFO explosive or gelatinous bulk explosive in the above with after the 2nd powder charge layer 14b forming specific length, cross opening portion that the interval d between the thin filling body 15 of length according to the rules and hole wall opens and ANFO explosive or gelatinous bulk explosive are packed into spatial portion between hole wall and external of filling pipe, form the 3rd powder charge layer 14c burying filling body 15, then in the above by specific length filling the 4th powder charge layer 14d.
Then, the thin filling body 15 of specific length is inserted into supporter 16 thus supports hole inwall, ANFO explosive or gelatinous bulk explosive be packed into the spatial portion between hole wall and filling body 15 exterior face by the opening portion of opening with the length being spaced apart d between the thin filling body 15 of specific length and hole wall again, form the 5th powder charge layer 14c, then cover lid 17 in the above, and clog with padding 18.
Therefore, the 1st powder charge layer 14a will load extension to l according to the volume of described thin filling body 15
3length, at explosion time, explosion length also extends thereupon, and compared with the dosage of ANFO explosive or bulk explosive, the specific area that its explosive force touches increases.
Along with the increase of described specific area, the explosive force of explosive disperses in powder charge hole, not only can decay concussion of blasting and explosive sound, but also significantly can expand the transmission area of explosion time to F1 side, Vertical Free face, increase gross pressure, thus more easily destroy laccolite.
On the explosion length basis of described 1st powder charge layer 14a, the powder charge layer i.e. filling length of the 3rd powder charge layer 14c of burying filling body 15 also extends to l
3' length, explosion length extends further to upside, and similarly, the powder charge layer i.e. filling length of the 5th powder charge layer 14e of burying described filling pipe body 15 also extends to l
3" length, explosion length extends further to upside.
Finally, formed in powder charge hole 11 and bury diameter the 1st, 3,5 powder charge layer 14a, 14b, 14e than the little thin filling body 15 of boring bore, along with filling length also according to the volumes lengthen of thin filling body 15 to l
3+ l
3'+l
3" length, explosion length also extends.In addition, the explosive force of explosive is distributed in powder charge hole 11 equably, thus the laccolite that can explosive force be made to greatest extent only to act between Vertical Free face F1 and powder charge hole 11 breaks, and allows explosive force not be wasted, the vibrations that laccolite explosion produces greatly can be alleviated.
In addition, the bulk explosive explosion time of ANFO explosive or gel (gel) shape, owing to there being the powder charge layer having buried thin filling body 15, i.e. the 1st, 3,5 powder charge layer 14a, 14b, 14e, therefore explosive payload also can carry out decrement according to the volume burying described thin filling body 15 in powder charge layer.Thus, the explosive force of ANFO explosive or gelatinous bulk explosive weakens, thus can make shock attenuation.
In addition, explosion time, blast warning line L is along with the powder charge layer burying thin filling body 15, and namely the explosion length of the 1st, 3,5 powder charge layer 14a, 14b, 14e is according to l
3+ l
3'+l
3" length to upside extend and increase, the stemming length l of padding 18
2shorten, the area reduction of bulk generating portion B, thus the whole stone size produced when greatly can reduce explosion.
That is, owing to having buried thin filling body 15, blast warning line L extends to upside, and specific area increases, and the explosion energy of ANFO explosive or bulk explosive is distributed in powder charge hole 11 equably, and acts on the explosion of laccolite to greatest extent.Therefore, the energy more less than prior art blasting method is stayed on laccolite, thus significantly can alleviate vibrations.In addition, because thin filling body 15 is inherently few than the explosive consumption loaded during General Explosive, therefore, the effect alleviating vibrations is also played in explosive payload minimizing.
1 elongated filling body is buried according to the present invention the embodiment profile carrying out loading in the powder charge layer in powder charge hole by Fig. 5.
This embodiment buries the embodiment in the powder charge layer 14k in powder charge hole 11 as by thin filling body 15 little and longer than boring bore for 1 diameter, and it is one and is extended to upside thus the embodiment of prolongation explosion length enforcement explosion by the filling length l5 of powder charge layer 14k according to filling body 15 volume.
According to this embodiment, the length l2 extending padding 18 along with the filling length of ANFO explosive or bulk explosive to upside shortens, the blast warning line L of powder charge hole 11 periphery laccolite also extends to upside, thus makes the powder charge layer 14k burying filling body 15 in ANFO explosive or bulk explosive near horizontal free surface F2.
Therefore, when forming powder charge layer in aforementioned powder charge hole 11, cause blast warning line L to extend to upside because burying thin filling body 15, specific area is increased, thus the explosion energy of ANFO explosive or bulk explosive is distributed in powder charge hole 11 equably and acts on laccolite explosion to greatest extent.Therefore, the energy more less than prior art blasting method is stayed on laccolite, thus significantly can alleviate vibrations.In addition, because thin filling body 15 itself also has the effect reducing explosive charge, also there is effect thus that alleviate vibrations.
In addition, due to filling ANFO explosive or bulk explosive extend to upside, therefore the stemming length of padding 18 shortens thereupon, and blast warning line L extends to upside.Like this, the region of the bulk generating portion B of the whole stone of generation can be made during explosion significantly to reduce, thus greatly reduce the generation of whole stone.
In addition, by also loading Powdered ANFO explosive or gel bulk explosive densely to thin filling body 15 peripheral space, thus the discontinuous face (layer) can eliminated between explosive and loading continuously, the possibility of miss-firing can be eliminated like this, in this case, explosive force can be made greatly to strengthen.
In addition, as shown in Figure 6 a, supporter 16 is inserted filling body in order to ensure filling body 15 is positioned at inner hole wall center, powder charge hole 11, described supporter 16 comprises: its central authorities are provided with through hole 16a and filling body 15 are received the circular stay 16b wherein supported; In described circular stay outboard end, give prominence at regular intervals and the support portion 16c supported hole wall, this supporter 16 is integrally formed by more than circular stay 16b and at least 2 support portion 16c.
When described supporter 16 supports hole wall in hole, isolate by interval d between the end and hole wall of circular stay 16b, opening portion is formed thus between the 16c of support portion, ANFO explosive or gel bulk explosive can be loaded by described opening portion, thus explosive can be packed into continuously in the space between hole wall and filling body.
Fig. 7 is the embodiment profile buried in the explosive of powder charge hole by " Z " font by the thin filling body thinner than powder charge hole according to the present invention.
The powder charge layer 14l of filling ANF explosive or bulk explosive as burying less than the boring bore in powder charge hole 11 for multiple diameter thin filling body 15 in the powder charge layer 14l of the ANFO explosive be seated in powder charge hole 11 or bulk explosive by " Z " font, then is loaded length according to the volume of filling body 15 and extends to l to upside by this embodiment
6the embodiment of length, as shown in Figure 5, compared with vertical situation of burying, filling contraction in length, therefore the length l2 of padding 18 also shortens thereupon.
This embodiment is an embodiment can used when needing the explosive payload reducing ANFO explosive or the bulk explosive buried in powder charge layer 14l.
Table 1 is carried out contrasting the chart embodying its pluses and minuses at the formation of formation of the present invention and prior art below.
[table 1]
In the above description, with reference to accompanying drawing, embodiments of the invention have been described in detail.But described embodiment is only to be illustrated in all its bearings, and do not mean that interest field of the present invention is only limitted to this, related variation embodiment all belongs within the scope of the technological thought of claims of the present invention record.
Claims (6)
1. a laccolite blasting method for filling body in explosion water hole or dry hole powder charge layer is buried in utilization, it is characterized in that:
Comprise: by the step that prescribed depth and regulation arrangement are bored a hole to boring on the laccolite that needs intercept; Respectively priming (12) and detonator (13) and dynamite charge are entered in described boring, by more than at least 1 diameter, and inside less than boring bore is with after in the filling body patchhole of prescribed level filling body layer, the outside of the filling body in the blast hole in dry hole or water hole is inserted into, for guaranteeing that filling body buries the step loading filling body and explosive formation powder charge hole (11) in powder charge layer or in water successively with explosive parcel; The filling step on the upside of the interior explosive of described powder charge hole (11) is loaded with padding (18) filling; With blaster, detonator (13) is ignited, make the detonation step that the priming in powder charge hole (11) and explosive are blasted, thus, can according to the filling length of volumes lengthen explosive of burying airbag in described powder charge layer, thus increase the transmission area to side, scope of freedom laccolite at explosion time, reach desirable demolition effect.
2. the laccolite blasting method of filling body in explosion water hole or dry hole powder charge layer is buried in utilization according to claim 1, it is characterized in that:
In the step of described formation powder charge hole (11), bury and form the length with regulation in being seated in the airbag in powder charge hole (11) in explosive, diameter is less than the boring bore in powder charge hole, and there is the filling body (15) of confined air gas-bearing formation inside.
3. the laccolite blasting method of filling body in explosion water hole or dry hole powder charge layer is buried in utilization according to claim 1, it is characterized in that:
In the step of described formation powder charge hole (11), bury in being seated in the airbag in powder charge hole (11) in explosive, its diameter is less than the boring bore in powder charge hole, and the airtight air balls (19) having air layer is buried in its inside.
4. the laccolite blasting method of filling body in explosion water hole or dry hole powder charge layer is buried in the utilization according to Claims 2 or 3, it is characterized in that:
Described filling body (15) or air balls (19) adopt any one material in Corvic PVC, PET mylar or polyethylene to manufacture.
5. the laccolite blasting method of filling body in explosion water hole or dry hole powder charge layer is buried in utilization according to claim 2, it is characterized in that:
In the step of described formation powder charge hole (11), for guaranteeing that the filling body (15) in patchhole is positioned at the center of hole wall, supporter (16) is inserted into more than 1 filling body (15) outer surface, and insert in powder charge hole (11), the interval that this supporter (16) keeps certain is divided into more than 2 opening portions filling body (15) spatial portion between outer surface and hole wall.
6. the laccolite blasting method of filling body in explosion water hole or dry hole powder charge layer is buried in utilization according to claim 1, it is characterized in that:
In the step of described formation powder charge hole (11), the explosive be packed in powder charge hole is pulverous ANFO explosive or the good gel bulk explosive of mobility.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130139080A KR20150056706A (en) | 2013-11-15 | 2013-11-15 | Rock Blasting Method using pipes embeded in Explosive Layers of Blast waterhole |
| KR10-2013-0139080 | 2013-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104654946A true CN104654946A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410029339.4A Pending CN104654946A (en) | 2013-11-15 | 2014-01-22 | Rock Blasting Method Using Pipes Embeded In Explosive Layers Of Blast Waterhole |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20150056706A (en) |
| CN (1) | CN104654946A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627060A (en) * | 2017-03-18 | 2018-10-09 | 南京梅山冶金发展有限公司 | Without blasting cap initiation method outside a kind of long-range hole |
| CN108692622A (en) * | 2018-03-28 | 2018-10-23 | 中交公局第三工程有限公司 | A kind of method of tunnel photoface exploision |
| CN110500926A (en) * | 2019-09-17 | 2019-11-26 | 安徽马钢矿业资源集团有限公司 | A kind of deep hole blasting spaced loading method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101596636B1 (en) * | 2015-07-21 | 2016-02-23 | 이현호 | Rock Blasting Method for using Air Tank |
| CN105444633A (en) * | 2015-11-18 | 2016-03-30 | 西北矿冶研究院 | Bench blasting charge structure capable of reducing block rate of blast hole blocking section |
| KR101656200B1 (en) | 2016-03-15 | 2016-09-08 | 김영근 | Bedrock Blasting Method Using Paraffin Inserted Paper Tube |
| KR102194664B1 (en) * | 2018-03-05 | 2020-12-23 | 강대우 | Lock blasting method |
| KR101995692B1 (en) * | 2019-05-29 | 2019-07-02 | 전재홍 | New Filling Blashing method |
| CN114674187A (en) * | 2022-04-11 | 2022-06-28 | 安徽马钢矿业资源集团南山矿业有限公司 | Deep hole blasting vibration reduction method |
| CN115478782B (en) * | 2022-09-10 | 2024-08-06 | 长江三峡通航管理局 | Construction method for flexible tandem reef explosion of inland waterway double ships |
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| KR20030021317A (en) * | 2001-09-05 | 2003-03-15 | 강대우 | Rock Blasting Method using Air Bags embeded in Explosive Layers |
| CN1119621C (en) * | 1999-09-16 | 2003-08-27 | 姜大雨 | Method of blasting rock using air tubes charged in blasthole |
| KR20120066403A (en) * | 2010-12-14 | 2012-06-22 | 동아대학교 산학협력단 | Self supporting air tube in water hole blasting |
| CN102519324A (en) * | 2011-12-27 | 2012-06-27 | 武汉科技大学 | Presplitting blasting method for water holes close to high and steep slopes |
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- 2013-11-15 KR KR1020130139080A patent/KR20150056706A/en not_active Application Discontinuation
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| CN1119621C (en) * | 1999-09-16 | 2003-08-27 | 姜大雨 | Method of blasting rock using air tubes charged in blasthole |
| KR20030021317A (en) * | 2001-09-05 | 2003-03-15 | 강대우 | Rock Blasting Method using Air Bags embeded in Explosive Layers |
| KR20120066403A (en) * | 2010-12-14 | 2012-06-22 | 동아대학교 산학협력단 | Self supporting air tube in water hole blasting |
| CN102519324A (en) * | 2011-12-27 | 2012-06-27 | 武汉科技大学 | Presplitting blasting method for water holes close to high and steep slopes |
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| CN108627060A (en) * | 2017-03-18 | 2018-10-09 | 南京梅山冶金发展有限公司 | Without blasting cap initiation method outside a kind of long-range hole |
| CN108692622A (en) * | 2018-03-28 | 2018-10-23 | 中交公局第三工程有限公司 | A kind of method of tunnel photoface exploision |
| CN110500926A (en) * | 2019-09-17 | 2019-11-26 | 安徽马钢矿业资源集团有限公司 | A kind of deep hole blasting spaced loading method |
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|---|---|
| KR20150056706A (en) | 2015-05-27 |
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