JPH0114520B2 - - Google Patents
Info
- Publication number
- JPH0114520B2 JPH0114520B2 JP56193251A JP19325181A JPH0114520B2 JP H0114520 B2 JPH0114520 B2 JP H0114520B2 JP 56193251 A JP56193251 A JP 56193251A JP 19325181 A JP19325181 A JP 19325181A JP H0114520 B2 JPH0114520 B2 JP H0114520B2
- Authority
- JP
- Japan
- Prior art keywords
- explosive
- filling
- cylindrical body
- water
- hydraulic
- 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.)
- Expired
Links
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- Air Bags (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
【発明の詳細な説明】
本発明は、爆薬の装填された装薬孔を填塞して
爆薬による爆破効果を向上せしめるための装薬孔
填塞用込め物およびその使用法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charge hole-filling device for blocking a charge hole loaded with an explosive to improve the blasting effect of the explosive, and a method of using the same.
従来、かかる装薬孔填塞用込め物としては、
砂、紙、粘土等をプラスチツク製の筒状体に充填
したものが使用されているが、これらは充填する
人の採用する突き込みの方法や強弱などによつて
填塞効果にバラツキが生じ易く、また充分に突き
込んだ場合であつても圧縮強度で10Kg／cm2程度位
にしかならず、爆薬の爆発のさいに装薬孔から飛
出したりして爆薬の爆発力が有効にトンネルの掘
削などに利用されないで30〜50％程度のロスが生
ずるなどの欠点があつた。 Conventionally, such fillers for filling the charging hole include:
Plastic cylinders filled with sand, paper, clay, etc. are used, but the filling effect of these tends to vary depending on the method and force of pushing used by the person filling them. In addition, even if the explosive is fully penetrated, the compressive strength is only about 10 kg/ cm2 , and when the explosive explodes, it may fly out of the charge hole, making the explosive force of the explosive effective for digging tunnels, etc. There were drawbacks such as a loss of about 30-50% due to unutilization.
本発明は、上記の欠点を改善せんとするもので
あつて、水硬性セメント、石膏等の水硬性硬化材
を通水性を有する柔軟性筒状体に充填し、開口端
を封じてなる装薬孔填塞用込め物およびこれを水
中に浸漬して含水させてから直ちに爆薬の装薬孔
に填塞し、硬化させる使用方法である。 The present invention aims to improve the above-mentioned drawbacks, and is a charge made by filling a water-permeable flexible cylindrical body with a hydraulic hardening material such as hydraulic cement or plaster, and sealing the open end. This is a method of use in which the hole-filling material is immersed in water to become hydrated, and then immediately filled into the charging holes of the explosive and hardened.
筒状体中に充填される材料である水硬性硬化材
は、ポートランドセメント、アルミナセメント等
の水硬性セメント、石膏等であつて、特に水硬性
セメントに次の１種以上の配合剤を混和した配合
物が最適である。配合剤としては、セメント系物
質の硬化過程での収縮を防止するための鉄粉、ア
ルミニウム粉、カルシウムサルホアルミネート系
等の膨張剤、リグニンスルホン酸塩系、オキシカ
ルボン酸塩系等の分散剤、砂、転炉滓、高炉滓な
どの骨材、クエン酸、酒石酸、水酸化マグネシウ
ム等のセメントの硬化速度を調整するための硬化
遅延剤、塩化カルシウム、塩化アルミニウム、水
酸化カルシウム、無水石膏などの硬化促進剤、吸
水性、吸水速度を上げるための高吸水性樹脂等が
挙げられる。 The hydraulic hardening material, which is the material filled in the cylindrical body, is a hydraulic cement such as Portland cement or alumina cement, gypsum, etc. In particular, the hydraulic cement is mixed with one or more of the following compounding agents. The best formulation is Compounding agents include iron powder, aluminum powder, expanding agents such as calcium sulfoaluminate, and dispersants such as lignin sulfonate and oxycarboxylate to prevent shrinkage during the hardening process of cement materials. , aggregates such as sand, converter slag, and blast furnace slag, hardening retarders for adjusting the hardening speed of cement such as citric acid, tartaric acid, and magnesium hydroxide, calcium chloride, aluminum chloride, calcium hydroxide, anhydrite, etc. curing accelerators, superabsorbent resins for increasing water absorption and water absorption speed, etc.
次に、水硬性硬化材を充填すべき筒状体は、両
端が開口した通常の筒状体のほか、一端が融着、
接着、結束等により封じられた有底筒状体であつ
ても良い。筒状体の大きさは爆薬を装填する装薬
孔に挿入するために適切な大きさであつて、直径
で10mmから100mm程度のものが好ましい。 Next, the cylindrical body to be filled with the hydraulic curing material can be a regular cylindrical body with both ends open, or a cylindrical body with one end fused.
It may be a bottomed cylindrical body sealed by adhesive, binding, etc. The size of the cylindrical body is an appropriate size for insertion into a charging hole into which explosives are loaded, and is preferably about 10 mm to 100 mm in diameter.
筒状体は、内部に充填する水硬性硬化材の硬化
に必要な水を通す性質を有し、かつ装薬孔に密に
装填しやすい柔軟性を有するものでなければなら
ない。すなわち、多孔性の軟性プラスチツクパイ
プ、多数の透孔をあけた紙、フイルム等からなる
筒状体、通水性の組織を有する紙、編織物、不織
布等からなる筒状体が望ましい。 The cylindrical body must have the property of allowing water to pass through, which is necessary for curing the hydraulic curing material filled inside, and must have flexibility so that it can be easily loaded tightly into the charging hole. That is, a cylindrical body made of a porous soft plastic pipe, a paper or film having a large number of holes, a cylindrical body made of paper having a water-permeable structure, a knitted fabric, a non-woven fabric, etc. is preferable.
筒状体に水硬性硬化材を充填した後は、一端ま
たは両端の開口端を融着、接着、結束等で封じ
る。封ぜれた筒状体内の水硬性硬化材が保管中に
吸湿して硬化することを防止し、かつ水中に浸漬
して含水させるときには水に溶解して吸水を妨げ
ないポリビニルアルコールを筒状体の表面に塗布
したり、テイツシユペーパーなどを筒状体に巻回
しておくことが望ましい。 After filling the cylindrical body with the hydraulic curing material, one or both open ends are sealed by fusing, adhering, bundling, or the like. The cylindrical body is made of polyvinyl alcohol, which prevents the hydraulic hardening material inside the sealed cylindrical body from absorbing moisture and hardening during storage, and which dissolves in water and does not prevent water absorption when immersed in water. It is preferable to apply it to the surface of the body or wrap tissue paper or the like around a cylindrical body.
得られた装薬孔填塞用込め物は、水中に浸漬し
て含水させた後に、装薬孔内に突き込めば、硬化
して装薬孔を完全に填塞することができる。 If the obtained charge hole filling material is immersed in water to become hydrated and then pushed into the charge hole, it will harden and completely fill the charge hole.
実施例
ハイアルミナセメント 35.0％
硅 砂 29.7％
カルシウム・アルミネート 0.3％
無水石膏 5.0％
ポートランドセメント 30.0％
上記の水硬性硬化材配合物を第１図に示す多数
の孔１を穿設した柔軟な直径約30mmのプラスチツ
クパイプ２に充填して両端を金属クリツプ３で結
束し、これを第２図に示すようにバケツに入れた
水中に約20〜60秒間浸漬して吸水させた後、爆薬
の装填された直径約40mmの装薬孔に軽く突き込む
と、45〜90秒で急速に硬化して、ほとんど収縮し
ないで装薬孔を完全に填塞した。この硬化物の早
期圧縮強度は５分後で50Kg／cm2、60分後で100
Kg／cm2であつた。これは従来より使用されている
紙、硅砂、粘土等の填塞材料から得られる強度よ
りもはるかに大きく、爆薬の爆発力のロスを著し
く減少することができた。Example High Alumina Cement 35.0% Silica Sand 29.7% Calcium Aluminate 0.3% Anhydrite 5.0% Portland Cement 30.0% The above hydraulic hardener composition was prepared into a flexible material with a large number of holes 1 as shown in Figure 1. Fill a plastic pipe 2 with a diameter of about 30 mm, tie the ends with metal clips 3, and immerse it in water in a bucket for about 20 to 60 seconds to absorb water, as shown in Figure 2. When lightly poked into a loaded charge hole with a diameter of approximately 40 mm, it rapidly hardened in 45 to 90 seconds, completely filling the charge hole with almost no shrinkage. The early compressive strength of this cured product was 50Kg/cm 2 after 5 minutes and 100Kg/cm 2 after 60 minutes.
It was Kg/ cm2 . This strength is much greater than that obtained from conventionally used filler materials such as paper, silica sand, and clay, and the loss of explosive power can be significantly reduced.
第１図は本発明に係る爆薬の装薬孔填塞用込め
物の一例を示す正面図、第２図は含水させる状態
を示す説明図である。
１：孔、２：筒状体、３：クリツプ。
FIG. 1 is a front view showing an example of a charge hole filling material for an explosive according to the present invention, and FIG. 2 is an explanatory view showing a state in which it is hydrated. 1: hole, 2: cylindrical body, 3: clip.
Claims (1)
通水性を有する柔軟性筒状体に充填し、開口端を
封じてなることを特徴とする爆薬の装薬孔填塞用
込め物。 ２ 水硬性セメント、石膏等の水硬性硬化材を、
通水性を有する柔軟性筒状体に充填し、開口端を
封じてなる爆薬の装薬孔填塞用込め物を水中に浸
漬して含水させてから直ちに爆薬の装薬孔に填塞
し、硬化させることを特徴とする爆薬の装薬孔填
塞用込め物の使用法。[Claims] 1. Hydraulic hardening materials such as hydraulic cement and plaster,
1. A filler for plugging a charging hole of an explosive, characterized by filling a flexible cylindrical body with water permeability and sealing an open end. 2. Hydraulic hardening materials such as hydraulic cement and gypsum,
A material for filling the charge hole of an explosive, which is made by filling a water-permeable flexible cylindrical body and sealing the open end, is immersed in water to become hydrated, and then immediately filled into the charge hole of the explosive and hardened. A method of using a filler for filling a charge hole of an explosive, characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19325181A JPS5895200A (en) | 1981-11-30 | 1981-11-30 | Explosive charge hole filling material and its usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19325181A JPS5895200A (en) | 1981-11-30 | 1981-11-30 | Explosive charge hole filling material and its usage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5895200A JPS5895200A (en) | 1983-06-06 |
| JPH0114520B2 true JPH0114520B2 (en) | 1989-03-13 |
Family
ID=16304840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19325181A Granted JPS5895200A (en) | 1981-11-30 | 1981-11-30 | Explosive charge hole filling material and its usage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895200A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157500A (en) * | 1983-02-28 | 1984-09-06 | 児島 安喜 | Method of filling up drilled hole for blasting |
| JPS6094156A (en) * | 1983-10-28 | 1985-05-27 | 電気化学工業株式会社 | Material for tamping |
| JPS62294900A (en) * | 1986-06-13 | 1987-12-22 | 佐藤工業株式会社 | Method of blasing reinforcing construction |
| JP2832720B2 (en) * | 1988-12-31 | 1998-12-09 | 靖二 中島 | Stepping prevention method for blasting work during rainfall etc. |
| KR101413292B1 (en) * | 2014-02-07 | 2014-06-27 | 전북대학교산학협력단 | Rapid Stemming Material used in Short Borehole for Concrete Structure Demolition and Blasting Demolition Method Using the Same |
-
1981
- 1981-11-30 JP JP19325181A patent/JPS5895200A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5895200A (en) | 1983-06-06 |
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