CN1556367A - Medium deep hole explosion energy focusing flat bottom bullet and use method - Google Patents
Medium deep hole explosion energy focusing flat bottom bullet and use method Download PDFInfo
- Publication number
- CN1556367A CN1556367A CNA2003101208916A CN200310120891A CN1556367A CN 1556367 A CN1556367 A CN 1556367A CN A2003101208916 A CNA2003101208916 A CN A2003101208916A CN 200310120891 A CN200310120891 A CN 200310120891A CN 1556367 A CN1556367 A CN 1556367A
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- Prior art keywords
- flat bullet
- collecting energy
- hole
- sockets
- bullet
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004880 explosion Methods 0.000 title abstract description 5
- 238000005422 blasting Methods 0.000 claims description 35
- 230000001186 cumulative effect Effects 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000005538 encapsulation Methods 0.000 claims 9
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000002360 explosive Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011435 rock Substances 0.000 abstract description 7
- 230000000977 initiatory effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000005474 detonation Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses method for reducing over deep of borehole for water-resistant type circumjacent shaped charge loaded at bottom of deep hole. Characters are that 4-8 troughs or sockets with or without cover for collecting energy are setup around column type charges, and then the said troughs or sockets are sealed. Generated transverse jet flow from explosion penetrates into rock, making rock produce cracks. Gas generated from explosive in accessory holes destroys face of hole in horizontal, playing effect of flatting base. Thus, ultra deep of drilling hole can be reduced. The invented method is also plays effect of initiating bomb.
Description
Technical field the invention belongs to the explosive technical field, refers more particularly to a kind of hole beehive-shaped charge and using method thereof that is placed at the bottom of the medium-length hole blasting hole.
The background technology medium-length hole blasting is a kind of blasting method that is most widely used, and it is widely used in the engineerings such as ore extraction, water conservancy, civil engineering, traffic.Certain super dark for guaranteeing that the general boring of cutting depth all will be provided with in blasting process, super 0.1～0.2 times of cutting depth or next definite super dark with the burden size that will reach deeply of boring reaches 0.1～0.35 times of burden usually.If boring is super excessive deeply, the smooth degree in bottom surface is descended greatly, increased a flat difficulty; Also can cause bigger damage, influence the integrality on basis, cause the unstability of top structures the basement rock of baseplane.In addition, even if to the bench plane of interim excavation, the super dark excessive explosive consumption that also can make increases, and causes waste; Simultaneously, the overcrushing on bench plane also can make further boring difficulty increase, and makes into porosity and descends greatly.For this reason, how reducing boring super is major issue in the Deep Hole Blasting deeply.As previously mentioned, superly in medium-length hole blasting can determine deeply that super deeply between 0.1～0.35 times of burden, therefore, the size that reduces burden is to reduce super dark most popular method with the burden size.Existing method has big pitch-row, little burden blasting technique and encrypts bore distribution method, and it only is about 1/2 of pitch-row that at present big pitch-row, little burden method have reached array pitch, reaches capacity substantially; And add the raising that the boring cost must be caused in the hole of gathering, increase the drilling and blasting unit price greatly.Another reduces super dark method is the blasting energy that adds at the bottom of the macropore, and as the pot hole blasting method with insert the high energy primary explosive column all superly have certain effect deeply to reducing at the bottom of the hole, but pot hole blasting method danger is bigger, and can not construct in hard rock; Although insert the high energy primary explosive column at the bottom of the hole the super dark effect of certain minimizing is arranged, its effect is not fairly obvious yet; So, reduce the super urgent problem that remains deeply of boring.
Summary of the invention the purpose of this invention is to provide a kind of horizontal cumulative effect that can ensure reliably in dry hole and water hole, reaches stable laterally wearing deeply, plays the flat bullet of medium-length hole blasting cumulative and the using method that reduce the super dark purpose of medium-length hole blasting.
Realize that technical scheme of the present invention is as follows:
Employing is at the bottom of the explosive column that sockets for collecting energy is circumferentially arranged places the hole, utilize explosive charge to produce horizontal energy-gathering jetting, laterally penetrate rock mass, at the bottom of the hole, produce bigger annular crack with energy-gathering jetting, auxiliary main blasting charge reaches and reduces super dark purpose the fragmentation of hole bottom horizontal part.Because, foot of hole often has water, chip ballast to exist in the general medium-length hole blasting, simultaneously, the main blasting charge that is used for explosion usually also is mobile, as powdery, bulk explosive etc., therefore, laterally the powder charge of the flat bullet of cumulative must be a waterproof, sockets for collecting energy also must encapsulate, to prevent that other media from entering the sockets for collecting energy influence and wearing dark.In addition, the another one problem that should note is, general perforation bullet all has fixing perforation direction, will locate exactly at the bottom of the hole and be difficult to, therefore, flat bullet should be the hoop cumulative, or multi-direction cumulative radially, can not require that like this perforation direction to flat bullet positions, can directly use the tapered cumulative chamber of hoop troughs for collecting energy, 4～8 directions, and the radially line style troughs for collecting energy of 4～8 directions reaches.
Specific implementation method can be undertaken by following program:
By concrete explosive manufacture method, make the powder charge of the radially line style troughs for collecting energy of the tapered cumulative chamber of hoop troughs for collecting energy, 4～8 directions or 4～8 directions, as when using black terraced explosive, can in mould, cast to adorn also can press-fit and make; The metal energy gathering cap of also can packing in troughs for collecting energy, chamber is as using copper, iron etc.; Then, powder charge is sealed in the plastic casing, has just made flat bullet.
When flat bullet uses, by normal blasting method operation, promptly put into earlier flat bullet at the bottom of the hole, at the main dress rendrock of packing into, filling is sealed then.For the flat bullet that hoop troughs for collecting energy or multi-direction tapered cumulative chamber are arranged, must use detonator directly to ignite, so that guarantee the detonation wave circulation way of beehive-shaped charge, otherwise the cumulative effect that can not play, at this moment flat bullet also can play the effect of priming bomb simultaneously, and the detonation mode of explosive is the hole base initiation in the hole.For the powder charge that multidirectional radially line style troughs for collecting energy is arranged, can directly not use cap sensitive, can ignite by the detonation of broken main blasting charge in the hole, at this moment, the detonation mode of explosive can be arbitrarily in the hole, detonates as the middle part etc.; Also can take base initiation mode in hole directly to ignite flat bullet with detonator.
Advantage of the present invention is:
On flat angle, flat bullet has well laterally cumulative perforation effect, can secondary blasting master blasting charge rock at the bottom of to the hole carry out horizontal broken, reach flat effect.This can reduce a flat difficulty, has improved the integrality of basement rock and the stability of top structures, thereby has also just reduced hidden dangers in project.On the angle of blast working, it is super dark that flat bullet can reduce boring, also just reduced the boring workload, also reduced the explosive use amount simultaneously, can reduce the drilling and blasting cost; Moreover, because bench is smooth, will reduce the explosion difficulty, improve the one-tenth porosity of boring.In addition, flat as a rule bullet can also play the effect of priming bomb.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments for description of drawings.
Fig. 1 is the layout drawing of flat bullet of the present invention in the hole.
Fig. 2 is the flat bullet structure chart of hoop cumulative of the present invention.
Fig. 3 is the flat bullet structure chart that hoop of the present invention is arranged tapered sockets for collecting energy.
Fig. 4 is the flat bullet structure chart of four directions of the present invention to the line style cumulative.
Fig. 5 is the flat bullet structure chart of all directions of the present invention to the line style cumulative.
Wherein, 1. detonator, 2. flat bullet powder charge, 3. Feng Zhuan sockets for collecting energy, 4. explosion master blasting charge, 5. padding, 6. energy gathering cap.
The specific embodiment
Below be described in detail most preferred embodiment of the present invention:
Embodiment 1
Making flat bullet by Fig. 3, is that main blasting charge casts out 6 sockets for collecting energy with 50/50 black terraced explosive, seals in the plastic housing of packing into.At the bottom of flat bullet inserted the hole, press Fig. 1 powder charge, with the flat bullet of detonator direct initiation, 12 meters hole depths, Φ 140 apertures, 6 * 3m plum blossom cloth hole, super dark reduction by 500～1000mm.
Making flat bullet by Fig. 2, is that main blasting charge casts out annular troughs for collecting energy with 50/50 black terraced explosive, seals in the plastic housing of packing into, inserts at the bottom of the hole, uses the detonator direct initiation, 12 meters hole depths, Φ 140 apertures, 6 * 3m plum blossom cloth hole, super dark reduction by 500～1000mm.
Make flat bullet by Fig. 5, with 50/50 black terraced explosive is that main blasting charge casts out 8 radially troughs for collecting energy, troughs for collecting energy is 75 ° of subtended angles, and 1mm iron cover is installed in troughs for collecting energy, seals in the plastic housing of packing into, insert at the bottom of the hole, adopt the mid point detonation mode, 14 meters hole depths, Φ 140 apertures, 6 * 3m plum blossom cloth hole, super dark reduction by 800～1200mm.
Claims (9)
1. the flat bullet of medium-length hole blasting cumulative is characterized in that, by sockets for collecting energy (3) formation of flat bullet powder charge (2), encapsulation, makes flat bullet powder charge (2) earlier, at the sockets for collecting energy (3) of encapsulation, has just made flat bullet.
2. flat bullet of medium-length hole blasting cumulative, it is characterized in that,, make flat bullet powder charge (2) earlier by the sockets for collecting energy (3) and energy gathering cap (6) formation of flat bullet powder charge (2), encapsulation, the metal energy gathering cap (6) of packing in the sockets for collecting energy (3) of encapsulation has just been made flat bullet.
3. the flat bullet of a kind of medium-length hole blasting cumulative according to claim 1 and 2 is characterized in that, the sockets for collecting energy of encapsulation (3) is the troughs for collecting energy that hoop is arranged, flat bullet also comprises the detonator (1) that is contained in the flat bullet powder charge (2).
4. the flat bullet of a kind of medium-length hole blasting cumulative according to claim 1 and 2 is characterized in that, the sockets for collecting energy of encapsulation (3) is the tapered cumulative chamber that hoop is arranged, flat bullet also comprises the detonator (1) that is contained in the flat bullet powder charge (2).
5. the flat bullet of a kind of medium-length hole blasting cumulative according to claim 3 is characterized in that, the sockets for collecting energy of encapsulation (3) is the tapered cumulative chamber that the hoop of 4～8 directions is arranged.
6. the flat bullet of a kind of medium-length hole blasting cumulative according to claim 1 and 2 is characterized in that, the sockets for collecting energy of encapsulation (3) is a line style troughs for collecting energy radially.
7. the flat bullet of a kind of medium-length hole blasting cumulative according to claim 6 is characterized in that, the sockets for collecting energy of encapsulation (3) is the radially line style troughs for collecting energy of 4～8 directions.
8. use the method for claim 1 or the flat bullet of 2 described a kind of medium-length hole blasting cumulatives, it is characterized in that flat bullet is installed at the bottom of the hole, directly ignite with detonator (1), its jet direction points to hole wall.
9. use the method for claim 1 or the flat bullet of 2 described a kind of medium-length hole blasting cumulatives, it is characterized in that radially the flat bullet of troughs for collecting energy powder charge is installed at the bottom of the hole, ignite with powder charge in the hole, its jet direction points to hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101208916A CN1556367A (en) | 2003-12-31 | 2003-12-31 | Medium deep hole explosion energy focusing flat bottom bullet and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101208916A CN1556367A (en) | 2003-12-31 | 2003-12-31 | Medium deep hole explosion energy focusing flat bottom bullet and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1556367A true CN1556367A (en) | 2004-12-22 |
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ID=34338344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101208916A Pending CN1556367A (en) | 2003-12-31 | 2003-12-31 | Medium deep hole explosion energy focusing flat bottom bullet and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1556367A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832123A (en) * | 2010-05-21 | 2010-09-15 | 中国科学技术大学 | Continuous multi-directional concentrated energy perforating bullet |
| CN102699517A (en) * | 2012-06-25 | 2012-10-03 | 史和庆 | Method for reducing uncombined explosive welding detonator zone through energy polymerizing cover detonation |
| CN102735121A (en) * | 2012-07-05 | 2012-10-17 | 中国科学技术大学 | Annular linear energy-accumulation cutter |
| CN103983153A (en) * | 2014-05-23 | 2014-08-13 | 中国科学技术大学 | Case circular discontinuous energy concentrating jet flow cracker |
| CN104713432A (en) * | 2015-04-09 | 2015-06-17 | 大连理工大学 | Blasting method employing detonation wave energy collection |
| CN106996718A (en) * | 2017-06-11 | 2017-08-01 | 贵州大学 | A kind of new downhole explosion Concentrated charge |
| CN108645300A (en) * | 2018-07-03 | 2018-10-12 | 河南省水利第二工程局 | Complex reflex cumulative and buffering energy dissipator and the blasting construction method based on the device |
| CN110174031A (en) * | 2019-05-16 | 2019-08-27 | 山东科技大学 | A kind of device overcoming methods of blasting toes in open |
-
2003
- 2003-12-31 CN CNA2003101208916A patent/CN1556367A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832123A (en) * | 2010-05-21 | 2010-09-15 | 中国科学技术大学 | Continuous multi-directional concentrated energy perforating bullet |
| CN102699517A (en) * | 2012-06-25 | 2012-10-03 | 史和庆 | Method for reducing uncombined explosive welding detonator zone through energy polymerizing cover detonation |
| CN102735121A (en) * | 2012-07-05 | 2012-10-17 | 中国科学技术大学 | Annular linear energy-accumulation cutter |
| CN103983153A (en) * | 2014-05-23 | 2014-08-13 | 中国科学技术大学 | Case circular discontinuous energy concentrating jet flow cracker |
| CN104713432A (en) * | 2015-04-09 | 2015-06-17 | 大连理工大学 | Blasting method employing detonation wave energy collection |
| CN106996718A (en) * | 2017-06-11 | 2017-08-01 | 贵州大学 | A kind of new downhole explosion Concentrated charge |
| CN108645300A (en) * | 2018-07-03 | 2018-10-12 | 河南省水利第二工程局 | Complex reflex cumulative and buffering energy dissipator and the blasting construction method based on the device |
| CN108645300B (en) * | 2018-07-03 | 2023-08-04 | 河南省水利第二工程局 | Composite reflection energy collecting and buffering energy dissipating device and blasting construction method based on same |
| CN110174031A (en) * | 2019-05-16 | 2019-08-27 | 山东科技大学 | A kind of device overcoming methods of blasting toes in open |
| CN110174031B (en) * | 2019-05-16 | 2021-12-28 | 山东科技大学 | Device for overcoming blasting root |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20041222 |