JPH04124600A - Method of blasting - Google Patents
Method of blastingInfo
- Publication number
- JPH04124600A JPH04124600A JP24255490A JP24255490A JPH04124600A JP H04124600 A JPH04124600 A JP H04124600A JP 24255490 A JP24255490 A JP 24255490A JP 24255490 A JP24255490 A JP 24255490A JP H04124600 A JPH04124600 A JP H04124600A
- Authority
- JP
- Japan
- Prior art keywords
- explosive
- bag
- fluid
- tubular
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002360 explosive Substances 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims description 41
- 238000004880 explosion Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 3
- 239000003721 gunpowder Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000010276 construction Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は発破方法、とりわけ火薬の爆発によるガス圧力
を流体に伝達し、構造物や岩盤の削孔周囲を破壊し、た
りあるいは削孔周囲を補強する発破方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a blasting method, in particular, a method for transmitting the gas pressure caused by the explosion of gunpowder to a fluid to destroy structures or areas around a drilled hole in rock. Concerning a blasting method for reinforcing.
コンクリート構造物や岩盤等の硬質物体を破壊する方法
として、硬質物体を削孔し、その穴に火薬などの爆発物
を挿入し、点火により発生するガス圧力を利用して破壊
する方法は、一般発破工法として広く知れている。A common method for destroying hard objects such as concrete structures and bedrock is to drill a hole in the hard object, insert explosives such as gunpowder into the hole, and use the gas pressure generated by ignition to destroy the object. It is widely known as a blasting method.
しかしながらこの工法にあっては５削孔穴と火薬の間に
大きな空間が存在し、ガス圧力がＥ昇するまでの長い時
間を経て脆弱部から破壊し始める。However, in this construction method, there is a large space between the drilled hole and the gunpowder, and after a long time until the gas pressure rises to E, the crack begins to break from the weak part.
そのうえ、破壊対象物に亀裂や空隙があると、ガスがそ
れらから逃げてガス圧力が上昇しない。このため、硬質
物体全体の破壊に到らないことがある。したがって破壊
力を大きくするには火薬量を多くすることが必要になり
、その結果、振動が発生したり、余堀りが増したり、コ
ストアップを招くなどの問題があった。Moreover, if there are cracks or voids in the object to be destroyed, the gas will escape through them and the gas pressure will not increase. Therefore, the entire hard object may not be destroyed. Therefore, in order to increase the destructive power, it is necessary to increase the amount of explosives, which results in problems such as vibration, increased overburden, and increased cost.
そこでこの対策として、ＡＢＳ工法（Ａｑｕａ Ｂｉａ
ｓｔｉｎｇ Ｓｙｓｔｅｍ）が開発されている。この工
法は、第７図に示すように、硬質プラスチックからなる
筒状容器８０に水８１を封入し、その水の中に火薬１［
（親ダイナイマイト、増しダイナマイト等）８２を入れ
て栓８３で封止し、このアッセンブリを削孔中に装填し
、爆発させるものである。Therefore, as a countermeasure to this problem, the ABS construction method (Aqua Bia
sting System) has been developed. As shown in FIG. 7, this construction method involves filling water 81 in a cylindrical container 80 made of hard plastic, and filling the water with gunpowder 1 [
(primary dynamite, additional dynamite, etc.) 82 is put in and sealed with a stopper 83, and this assembly is loaded into a drilled hole and exploded.
この工法は、火薬の周囲の水が削孔の周囲の亀裂や空隙
を閉塞するため、ガス圧力の低下を防止することができ
、火薬使用効率を向上することができる。しかしながら
、この工法にあっては、筒状の硬質プラスチック容器の
製作、該容器内への水の充填、さらにその液体中への火
薬の装填という一連の工程と手間がかかるため、コスト
アップを避けられない。また、水の中に直接火薬類をい
れるため、これが直接水に接触しやすいなど安全管理上
も開運があった。In this construction method, water around the gunpowder closes cracks and voids around the drilled hole, so it is possible to prevent a drop in gas pressure and improve the efficiency of using gunpowder. However, this construction method requires a series of steps and labor, such as manufacturing a cylindrical hard plastic container, filling the container with water, and then loading explosives into the liquid, so it is difficult to avoid increasing costs. I can't. In addition, since the explosives were put directly into the water, it was easy for them to come into direct contact with the water, which was an advantage in terms of safety management.
また、発破方法の一形態として、前記のような硬質物体
の解体とは別に、掘削した岩盤類に爆圧力を利用して流
体を圧入して補強する発破補強法がある。この工法に関
し、従来では、反応性樹脂類を袋詰めしたものを削孔の
奥部に装入し、込め物を入れ１次いで入り口側に火薬類
を挿入して爆発させていた。この方法は、操作が面倒で
ある上、反応性樹脂類が削孔の奥部に挿入され、その奥
部領域が補強されるだけであるため、補強範囲が狭いと
いう問題があった。In addition to the above-mentioned demolition of hard objects, one form of the blasting method is a blasting reinforcement method in which the excavated rock is reinforced by injecting fluid into it using explosive force. Conventionally, with this method, a bag of reactive resin was charged deep into the borehole, a charge was placed, and then explosives were inserted at the entrance and exploded. This method has the problem that it is cumbersome to operate and that the reinforcing range is narrow because the reactive resin is inserted deep into the drilled hole and only that deep region is reinforced.
本発明は前記のような問題点を解消するために創案され
たもので、その目的とするところは、爆発圧力を流体全
体に効率よく与えて発破式解体や補強を行うことができ
、しかも施工を簡単安価に行える実用的な発破方法を提
供することにある。The present invention was devised to solve the above-mentioned problems, and its purpose is to efficiently apply explosive pressure to the entire fluid to perform blasting-type demolition and reinforcement, and to improve construction efficiency. The objective is to provide a practical blasting method that can be carried out easily and inexpensively.
上記目的を達成するため本発明は、柔軟性のある筒袋に
流体を所定量封入し、該流体封入筒袋の端部からこれよ
り小径の爆薬を押込み被包させ、この爆薬被包装を削孔
した穴に装填し、爆発させる手法としたものである。In order to achieve the above object, the present invention seals a predetermined amount of fluid in a flexible cylinder bag, and presses and encapsulates an explosive with a smaller diameter from the end of the fluid-filled cylinder bag, thereby removing the packaging of the explosive. The method involved loading the bomb into a hole and detonating it.
本発明の発破方法は、構造物や岩盤等の解体や破壊のほ
か、掘削岩盤の圧入補強にも適用される。The blasting method of the present invention is applicable not only to dismantling and destroying structures and rock masses, but also to press-fit reinforcement of excavated rock masses.
前記流体としては、発破の目的が解体である場合には、
水で代表される液体あるいはこれにゲル化物を添加した
ものが効果的である。また、発破の目的が圧入補強であ
る場合には１反応性硬化剤を含むものが好適である。When the purpose of blasting is demolition, the fluid may include:
A liquid such as water or a gel added thereto is effective. Furthermore, when the purpose of blasting is press-fit reinforcement, one containing a single reactive curing agent is suitable.
以下本発明を添付図面に基いて説明する。The present invention will be explained below based on the accompanying drawings.
第１図ないし第４＠は本発明による発破方法の一例を段
階的に示している。Figures 1 to 4 show step by step an example of the blasting method according to the present invention.
第１図において、１は柔軟性のある筒袋であり。In FIG. 1, 1 is a flexible tube bag.
好ましくはナイロン、ビニロン、ポリエチレンなどの高
分子材料、それら高分子材料の２種以上をラミネートし
たからものからなっている。いずれにしても、筒袋１は
、通常の状態では破れに＜＜５爆発時に破壊されるよう
な所要の厚さに作られている。筒袋は膨張性を有してい
てもよい。Preferably, it is made of a polymeric material such as nylon, vinylon, or polyethylene, or a laminate of two or more of these polymeric materials. In any case, the cylinder bag 1 is made to have a required thickness such that under normal conditions it will be destroyed in the event of an explosion. The tube bag may have expandability.
本発明はまず、この筒袋１に媒体とし・ての流体２を充
填し、筒袋１をヒートシールしたり、クリップ等で結縛
したりする方法で流体封入筒袋３を得ておく。流体２の
充填量は少なめとする。すなわち、次の工程で爆薬が挿
入されたときに袋が破損せず、封入しである流体２が袋
内で自由に移動できるような所定量とする。In the present invention, first, the tube bag 1 is filled with a fluid 2 as a medium, and the tube bag 1 is heat-sealed or tied with a clip or the like to obtain a fluid-filled tube bag 3. The filling amount of fluid 2 is set to be small. In other words, the predetermined amount is set such that the bag will not be damaged when explosives are inserted in the next step and the fluid 2 sealed therein can move freely within the bag.
発破が硬質物体の解体、破壊を目的とする場合には、前
記流体として、水、泥水、あるいはゲル化剤として吸水
性樹脂すなわち、たとえば、ポリアクリル酸ソーダ、澱
粉とアクリル酸のグラフト重合物、酢酸ビニルとアクリ
ル酸メチルの共重合物のケン化物など、を添加したゲル
化水などが用いられる。また、発破が補強を目的とする
場合には、流体として、水ガラスと硬化助剤、セメント
ミルク、反応性合成樹脂などが用いられる。When the purpose of blasting is to dismantle or destroy a hard object, the fluid may be water, muddy water, or the gelling agent may be a water-absorbing resin, such as sodium polyacrylate, a graft polymer of starch and acrylic acid, Gelled water to which saponified copolymer of vinyl acetate and methyl acrylate is added is used. Furthermore, when the purpose of blasting is reinforcement, water glass, hardening aid, cement milk, reactive synthetic resin, etc. are used as fluids.
前記流体封入筒袋３は使用時までこの状態にしておく、
そして発破直前に、第２図のように、爆薬たとえばダイ
ナマイト番こ***を仕掛けた火薬４を流体封入筒袋３の
端部に配し、該火薬４を強制的に流体封入筒袋３に押し
込む。前記のように袋１は柔軟性を有し、しかも流体２
が袋に完全に充満しておらず袋内を移動できるため、火
薬４の押込みに伴って押し退けられた流体２ｏが入り口
側に移動して該領域の袋壁１１が膨出し、火薬４を包み
込む。火薬４の押込み位置は、第２図のように、流体封
入筒袋３のほぼ中央部とすることが好ましい。必要に応
じ、火薬４が無闇に脱出しないように流体封入筒袋３の
入り口側を粘着テープや紙類ですぼめておく。The fluid enclosure bag 3 is kept in this state until it is used.
Immediately before blasting, as shown in FIG. 2, explosives such as dynamite detonators 4 are placed at the end of the fluid-filled cylinder bag 3, and the explosives 4 are forcibly pushed into the fluid-filled cylinder bag 3. . As mentioned above, the bag 1 has flexibility, and the fluid 2
Since the bag is not completely filled and can move inside the bag, the fluid 2o displaced as the gunpowder 4 is pushed moves to the entrance side, causing the bag wall 11 in this area to swell and envelop the gunpowder 4. . The push-in position of the gunpowder 4 is preferably approximately at the center of the fluid-filled cylinder bag 3, as shown in FIG. If necessary, the entrance side of the fluid-containing cylinder bag 3 is sealed with adhesive tape or paper to prevent the gunpowder 4 from escaping inadvertently.
次いで、このようにして得られた筒状被包爆薬５を、第
３図のように、対象物６に予め穿孔した穴６０に挿入し
、穴入り口を込め物７で閉塞することにより筒状被包爆
薬５を封入する。そしてこの状態で爆発させる。Next, as shown in FIG. 3, the cylindrical encapsulated explosive 5 thus obtained is inserted into a hole 60 previously drilled in the object 6, and the opening of the hole is closed with a filler 7 to form a cylindrical encapsulated explosive. The encapsulated explosive 5 is enclosed. And in this state it explodes.
本発明においては、第３図と第４図のように火薬４の外
周に流体２が筒袋壁１０を介して覆いかぶさっており、
爆発時まで流体２と火薬４が直接接継しないため安全で
あるが、爆発時にはその圧力が流体全体に均一に伝達さ
れ、破壊された袋体１からの流体を介して六６０の内壁
全面に均等に圧力をかけることができ、これにより、効
率よく対象物６を破壊したり、あるいは穴全体に効率よ
く流体を圧入することができる。In the present invention, as shown in FIGS. 3 and 4, the fluid 2 covers the outer periphery of the gunpowder 4 via the barrel wall 10,
It is safe because the fluid 2 and the gunpowder 4 are not directly connected until the explosion occurs, but in the event of an explosion, the pressure is uniformly transmitted to the entire fluid, and the entire inner wall of the 660 is exposed to the fluid from the destroyed bag 1. Pressure can be applied evenly, thereby efficiently destroying the object 6 or efficiently pressurizing fluid into the entire hole.
第５図は本発明の別の実施例を示している。この実施例
では、流体封入筒袋３に、電気***４０を挿入して加工
した火薬（親ダイ）４ａと***なしの火薬（増しダイ）
４ｂを押込むことで第１の筒状被包爆薬５ａを作る一方
、別の流体封入筒袋３には火薬（増しダイ）４ｂを押込
んで第２の筒状被包爆薬５ａを作っておく。そして、対
象物６に予め穿孔した六６０に第１と第２の筒状被包爆
薬５ａ、５ｂを挿入し、導線４１を六６０から引出し、
込め物７で穴入り口を閉塞する。そしてこの状態で導線
４１を介して通電し、爆発させる。FIG. 5 shows another embodiment of the invention. In this embodiment, a gunpowder (main die) 4a processed by inserting an electric detonator 40 into a fluid-filled cylinder bag 3 and a gunpowder without a detonator (additional die)
4b to make a first cylindrical encapsulated explosive 5a, while pushing gunpowder (additional die) 4b into another fluid-filled cylindrical bag 3 to make a second cylindrical encapsulated explosive 5a. . Then, the first and second cylindrical encapsulated explosives 5a and 5b are inserted into the six 60 that has been drilled in advance in the object 6, and the conductor 41 is pulled out from the six 60.
The hole entrance is closed with the filler 7. In this state, electricity is applied through the conductor 41 to cause an explosion.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
材質：ポリエステル、肉厚：０．０３６ｍｍ、長さ：６
００腸鳳、太さ：３５■■φの長い袋に、水を２５０ｃ
ｃ充填し、入り口をアルミクリップでシールした。発破
にあたり、２修復ダイナマイトに***を仕掛けた火薬を
前記袋の長手方向中央部まで押込んだ。Material: Polyester, Thickness: 0.036mm, Length: 6
00 Inoho, Thickness: 35■■φ long bag, 250c of water
c), and the inlet was sealed with an aluminum clip. For blasting, the gunpowder equipped with a detonator on 2-repair dynamite was pushed into the longitudinal center of the bag.
この状態で、４０Ｍのトンネル断面の周に沿って第６図
の黒丸で示すように穿孔した直径４５ｍｍφ、長さ２５
００＋ｍの穴に前記アッセンブリを装薬し、穴入り口を
粘土質の込め物で塞ぎ、爆発させた。In this state, a hole with a diameter of 45 mmφ and a length of 25 mm was drilled along the circumference of the 40M tunnel cross section as shown by the black circle in Figure 6.
The above assembly was charged into a 00+m hole, the hole entrance was plugged with a clay filler, and it was exploded.
比較のため、第６図の白丸穿孔配置により従来法で発破
を行った。For comparison, blasting was carried out using the conventional method using the white circle perforation arrangement shown in Figure 6.
その結果、従来法では１ｍｌ″あたり火薬使用量０゜６
〜０．６５ｋｇ／ｎ？であったものが、本発明によれば
、０．４〜０．４５ｋｇ／ ｒｎ”で済むことになり、
約３割程度の少ない火薬量で大きな掘削効果が得られた
。As a result, in the conventional method, the amount of gunpowder used per 1ml was 0°6.
~0.65kg/n? However, according to the present invention, the amount is reduced to 0.4 to 0.45 kg/rn'',
A great digging effect was obtained with a small amount of explosives, about 30%.
以上説明した本発明によれば、柔軟性のある筒袋に流体
を所定量封入し、該流体封入筒袋の端部からこれより小
径の爆薬を押込み被包させて筒状被包爆薬を作り、これ
を削孔した穴に装填し、爆発させるため、爆薬の製作を
簡単かつ低コストに行え、また、爆薬は流体封入筒袋と
袋壁で遮断されており爆薬が流体自体に直接液すること
がなく、また、削孔穴への挿入も、爆薬が流体封入筒袋
で覆われているため、衝撃等から保護され、安全性を高
くすることができる。そして、爆薬の外周が流体封入筒
袋で被包さ九ているため、爆発圧力を流体全体に均一に
伝達することができ、効率の高い破壊や流体圧入を行う
ことができるなどの優れた効果が得られる。According to the present invention as described above, a predetermined amount of fluid is sealed in a flexible cylindrical bag, and an explosive having a smaller diameter is pushed and encapsulated from the end of the fluid-filled cylindrical bag to produce a cylindrical encapsulated explosive. The explosive is loaded into a drilled hole and detonated, making it easy and low-cost to produce the explosive.Also, the explosive is sealed off by the fluid-containing cylinder bag and the bag wall, so the explosive liquefies directly into the fluid itself. In addition, since the explosive is covered with a fluid-containing cylinder bag, it is protected from impacts and the like, and safety can be improved even when the explosive is inserted into the drilled hole. Since the outer periphery of the explosive is surrounded by a fluid-filled cylinder bag, the explosion pressure can be uniformly transmitted to the entire fluid, resulting in excellent effects such as highly efficient destruction and fluid injection. is obtained.
第１図は本発明における流体封入筒袋の断面図、第２図
は筒状被包爆薬の製作時の状態を示す断面図、第３図は
発破直前の状態を示す断面図、第４図は第３図ＩＶ−Ｉ
Ｖ線に沿う断面図、第５図は本発明の別の実施例を示す
断面図、第６図は本発明と従来法の発破装薬パターンを
示す説明図、第７図は従来のＡＢＳ発破方法の説明図で
ある。
１・・・袋、２・・・流体、３・・・流体封入筒袋、４
・火薬、５，５ａ、５ｂ・・・筒状被包爆薬、６・・対
象物、６０・・・穴、７・・・込め物Fig. 1 is a sectional view of the fluid-filled cylindrical bag according to the present invention, Fig. 2 is a sectional view showing the state of the cylindrical encapsulated explosive at the time of manufacture, Fig. 3 is a sectional view showing the state immediately before blasting, and Fig. 4 is shown in Figure 3 IV-I.
5 is a sectional view showing another embodiment of the present invention, FIG. 6 is an explanatory diagram showing blasting charge patterns of the present invention and the conventional method, and FIG. 7 is a conventional ABS blasting diagram. It is an explanatory diagram of a method. 1... Bag, 2... Fluid, 3... Fluid enclosure bag, 4
・Gunpowder, 5, 5a, 5b... Cylindrical encapsulated explosive, 6... Target, 60... Hole, 7... Filling
Claims (3)
封入筒袋の端部からこれより小径の爆薬を押込み被包さ
せて筒状被包爆薬を作り、これを削孔した穴に装填し、
爆発させることを特徴とする発破方法。(1) A predetermined amount of fluid was sealed in a flexible cylindrical bag, and an explosive with a smaller diameter was pushed into the end of the fluid-filled cylindrical bag to enclose it to create a cylindrical encapsulated explosive, which was then drilled. Load it into the hole,
A blasting method characterized by causing an explosion.
範囲第１項記載の発破方法。(2) The blasting method according to claim 1, wherein the fluid contains a gelled material added thereto.
記載の発破方法。(3) The blasting method according to claim 1, wherein the fluid contains a reactive curing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2242554A JPH0752080B2 (en) | 1990-09-14 | 1990-09-14 | Blast reinforcement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2242554A JPH0752080B2 (en) | 1990-09-14 | 1990-09-14 | Blast reinforcement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04124600A true JPH04124600A (en) | 1992-04-24 |
| JPH0752080B2 JPH0752080B2 (en) | 1995-06-05 |
Family
ID=17090828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2242554A Expired - Lifetime JPH0752080B2 (en) | 1990-09-14 | 1990-09-14 | Blast reinforcement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752080B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06174400A (en) * | 1992-12-02 | 1994-06-24 | Kazuhiko Atsuta | Bench blasting method |
| KR100460753B1 (en) * | 2002-09-11 | 2004-12-08 | 주식회사 코리아카코 | Blasting dissolution method of the infrastructure which uses a hydraulic pressure |
| JP2011508122A (en) * | 2007-12-27 | 2011-03-10 | サンドビク マイニング アンド コンストラクション オサケ ユキチュア | Small quantity charge blasting method and apparatus |
| JP2011508121A (en) * | 2007-12-27 | 2011-03-10 | サンドビク マイニング アンド コンストラクション オサケ ユキチュア | Small quantity charge blasting method and apparatus |
| CN112197662A (en) * | 2020-10-19 | 2021-01-08 | 辽宁科技学院 | Device for preventing blast hole from freezing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4713915U (en) * | 1971-03-13 | 1972-10-18 | ||
| JPS62123300A (en) * | 1985-11-22 | 1987-06-04 | 北新建設株式会社 | Firing method and water bag for firing |
-
1990
- 1990-09-14 JP JP2242554A patent/JPH0752080B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4713915U (en) * | 1971-03-13 | 1972-10-18 | ||
| JPS62123300A (en) * | 1985-11-22 | 1987-06-04 | 北新建設株式会社 | Firing method and water bag for firing |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06174400A (en) * | 1992-12-02 | 1994-06-24 | Kazuhiko Atsuta | Bench blasting method |
| KR100460753B1 (en) * | 2002-09-11 | 2004-12-08 | 주식회사 코리아카코 | Blasting dissolution method of the infrastructure which uses a hydraulic pressure |
| JP2011508122A (en) * | 2007-12-27 | 2011-03-10 | サンドビク マイニング アンド コンストラクション オサケ ユキチュア | Small quantity charge blasting method and apparatus |
| JP2011508121A (en) * | 2007-12-27 | 2011-03-10 | サンドビク マイニング アンド コンストラクション オサケ ユキチュア | Small quantity charge blasting method and apparatus |
| US8418618B2 (en) | 2007-12-27 | 2013-04-16 | Sandvik Mining & Construction Oy | Method and apparatus for small-charge blasting |
| CN112197662A (en) * | 2020-10-19 | 2021-01-08 | 辽宁科技学院 | Device for preventing blast hole from freezing |
| CN112197662B (en) * | 2020-10-19 | 2023-01-06 | 辽宁科技学院 | Device for preventing blast hole from freezing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0752080B2 (en) | 1995-06-05 |
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