JPS60188594A - Rock crushing method - Google Patents
Rock crushing methodInfo
- Publication number
- JPS60188594A JPS60188594A JP4194884A JP4194884A JPS60188594A JP S60188594 A JPS60188594 A JP S60188594A JP 4194884 A JP4194884 A JP 4194884A JP 4194884 A JP4194884 A JP 4194884A JP S60188594 A JPS60188594 A JP S60188594A
- Authority
- JP
- Japan
- Prior art keywords
- rock
- pressure water
- nozzle
- diameter pipe
- rock crushing
- 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.)
- Pending
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は岩盤破砕方法に係るものである。[Detailed description of the invention] The present invention relates to a rock crushing method.
従来より最も汎く使用されている岩盤破砕方法は爆薬を
用いる方法で、第１図に示すように破砕しようとする岩
盤（α）中に爆薬装填用の孔（５）を穿孔し、次いで第
２図に示す如く、同穿孔部（ｂ）に爆薬（Ｃ）を装填す
るとともに、爆破時の効果を増大させるために乾燥した
砂、砕石、礫（ｄ−）等で閉塞し、この状態で電気雷管
によって点火して第３図の（ｇ）に示す如き漏斗状の断
面形状に岩盤（α）の破砕を行なリイｂ人
前記従来の方法においては爆薬を使用するため常に危険
を伴ない、また爆薬装填用の穿孔作業が面倒である等の
問題点がある。The most widely used rock crushing method to date is a method using explosives, in which a hole (5) for loading explosives is drilled into the rock (α) to be crushed, as shown in Figure 1. As shown in Figure 2, the hole (b) was loaded with explosives (C), and in order to increase the blasting effect, it was blocked with dry sand, crushed stone, gravel (d-), etc. The rock (α) is ignited by an electric detonator and crushed into a funnel-shaped cross-sectional shape as shown in Figure 3 (g). In addition, there are other problems such as the troublesome drilling work for loading explosives.
本発明はこのような問題点を解決１“るために提案され
たもので、高圧水噴射用小径管における電極を兼用する
下端部ノズルより高圧水を噴射して岩盤に穿孔したのち
、前記ノズルに高電圧を負荷して同穿孔部内において水
中放電を生起せしめることを特徴とする岩盤破砕方法に
係るものである。The present invention has been proposed to solve these problems, and after drilling a hole in rock by injecting high-pressure water from the lower end nozzle that also serves as an electrode in a small-diameter pipe for high-pressure water injection, the nozzle The present invention relates to a rock crushing method characterized in that a high voltage is applied to a hole to cause an underwater discharge within the borehole.
本発明においては前記したように、先ず高圧水噴射用小
径管の電極を兼用する下端部ノズルより高圧水を噴射し
、このジェット噴流を利用して容易に岩盤内に穿孔する
ものであり、この際、同穿孔部に水が満たされているこ
とを利用して、前記高圧水噴射用小径管の下端ノズルに
高電圧を負荷して水中放電を生起せしめ、そのときのエ
ネルギで周囲の岩盤を破砕するようにしたものである。In the present invention, as described above, first, high-pressure water is injected from the lower end nozzle that also serves as an electrode of a small diameter pipe for high-pressure water injection, and this jet stream is used to easily drill into the rock. At this time, by utilizing the fact that the hole is filled with water, a high voltage is applied to the lower end nozzle of the small-diameter pipe for high-pressure water injection to generate an underwater discharge, and the energy generated at that time is used to destroy the surrounding rock. It is designed to be crushed.
このように本発明によれば、岩盤の穿孔作業に引続いて
装置を交換することなく岩盤の破砕作業に移行すること
が可能となり、岩盤の破砕を短時間で能率よく行なうこ
とができる。As described above, according to the present invention, it is possible to proceed to the rock crushing work without replacing the device after drilling the rock, and the rock can be crushed efficiently in a short time.
また本発明によれば岩盤の破砕に爆薬を使用しないので
、作業の安全性を向上しうるものである。Further, according to the present invention, since no explosives are used to crush the rock, the safety of the work can be improved.
以下本発明を図示の実施例について説明する。The present invention will be described below with reference to the illustrated embodiments.
第４図は本方法に使用される岩石破砕装置を示し、（１
）は高圧水噴射用小径管で、下端部に電極を兼用するノ
ズル（１ａ）が設けられ、同ノズルより高圧水が噴射さ
れるように構成されるとともに、前記小径管（１）自体
が高圧電流の流れる導電線を兼ねるように構成されてい
る。Figure 4 shows the rock crushing equipment used in this method, (1
) is a small-diameter pipe for high-pressure water injection, and is provided with a nozzle (1a) that also serves as an electrode at the lower end, and is configured so that high-pressure water is injected from the nozzle, and the small-diameter pipe (1) itself has a high-pressure It is configured to double as a conductive wire through which current flows.
（２）は前記小径管（１）の中心軸に配線された導電線
で、下端部を除いで絶縁物質（３）で被覆されている。(2) is a conductive wire wired to the central axis of the small diameter tube (1), and is covered with an insulating material (3) except for the lower end.
前記小径管（１）及び導電線（２）の各上端部は絶縁物
質（４）によって固定され、更に前記小径管（１）の上
端には高圧水供給管（５）が接続され、更に前記導線（
２）及び前記小径管（１）に接続された導線（６）の各
端部は放電装置（図示せず）に接続されている。The upper ends of the small diameter pipe (1) and the conductive wire (2) are fixed with an insulating material (4), and a high pressure water supply pipe (5) is connected to the upper end of the small diameter pipe (1). Conductor (
2) and each end of the conducting wire (6) connected to the small diameter pipe (1) is connected to a discharge device (not shown).
而して岩盤（７）に前記小径管（１）のノズル（１（Ｌ
）が指向するように、岩石破砕装置をセットし、同ノズ
ル（１α）より高圧水を噴射させて岩盤（７）に穿孔す
る。Then, the nozzle (1 (L) of the small diameter pipe (1) is attached to the bedrock (7).
) is oriented, and high pressure water is injected from the nozzle (1α) to drill into the rock (7).
（第５図参照）
岩盤（７）の所定深さまで穿孔されると、岩石破砕装置
の位置はそのままで、穿孔部（８）内に水の満たされた
ままの状態で放電装置によって前記岩石破砕装置におけ
る導線（（３１（２）に高電圧を負荷し、前記小径管（
１）の下端ノズル（１ａ）と導線（２）の下端部との間
に水中放電を生起せしめ、その時のエネルギで周囲の岩
盤（力を破砕する。（第６図参照）このように実施例の
方法によれば穿孔作業に引続（・て、装置を交換するこ
となく破砕作業に移行することが可能となり、短時間で
能率的に岩盤の破砕作業を行なうことができ、また爆薬
を使用しないことによって作業性の安全性を向上しうる
ものである。(Refer to Figure 5) When the rock (7) is drilled to a predetermined depth, the rock crusher is kept in the same position and the rock is crushed by the electric discharge device while the hole (8) remains filled with water. A high voltage is applied to the conductor ((31(2)) in the device, and the small diameter pipe (
1) An underwater discharge is generated between the lower end nozzle (1a) and the lower end of the conductor (2), and the energy generated at that time is used to crush the surrounding rock (see Figure 6). According to this method, it is possible to proceed to the crushing work after the drilling work without replacing the equipment, it is possible to perform the rock crushing work efficiently in a short time, and it does not use explosives. This can improve work safety.
以上本発明を実施例について説明したが、本発明は勿論
このような実施例にだけ局限されるものではな（、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments (and various modifications to the design may be made without departing from the spirit of the present invention). be.
第１図乃至第３図は従来の爆薬を使用した岩盤の破砕方
法の工程を示す縦断面図、第４図は本発明の方法に使用
される岩盤破砕装置の縦断面図、第５図及び第６図は夫
々本発明に係る岩盤破砕方法の一実施例の工程を示す裁
断面図である。
（１）・・・高圧水噴射用小径管、（１α）・・・ノズ
ル、（２）・・・導電線
復代理人 弁理士 岡 本 重 文
外３名
第１図 第２図
一／
第３図1 to 3 are vertical cross-sectional views showing the steps of a conventional rock crushing method using explosives, FIG. 4 is a vertical cross-sectional view of a rock crushing apparatus used in the method of the present invention, and FIGS. FIG. 6 is a cross-sectional view showing steps of an embodiment of the rock crushing method according to the present invention. (1)...Small-diameter pipe for high-pressure water injection, (1α)...Nozzle, (2)...Conducting wire Sub-agent Patent attorney Shige Okamoto 3 other persons Figure 1 Figure 2 Figure 1/ Figure 2 Figure 3
Claims (1)
ルより高圧水を噴射して岩盤に穿孔したのち、前記ノズ
ルに高電圧を負荷して同穿孔部内において水中放電を生
起せしめることを％微とする岩盤破砕方法。After drilling a hole in rock by injecting high-pressure water from the lower end nozzle that also serves as an electrode in a small-diameter pipe for high-pressure water injection, it is highly unlikely that a high voltage will be applied to the nozzle to cause an underwater discharge within the hole. Rock crushing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194884A JPS60188594A (en) | 1984-03-07 | 1984-03-07 | Rock crushing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4194884A JPS60188594A (en) | 1984-03-07 | 1984-03-07 | Rock crushing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60188594A true JPS60188594A (en) | 1985-09-26 |
Family
ID=12622428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4194884A Pending JPS60188594A (en) | 1984-03-07 | 1984-03-07 | Rock crushing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60188594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007959A1 (en) * | 1996-08-22 | 1998-02-26 | Komatsu Ltd. | Method and device for crushing material by discharging pulsed electric energy and method and device for generating high-voltage pulse |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4713842U (en) * | 1971-03-18 | 1972-10-18 | ||
| JPS5124747A (en) * | 1974-08-26 | 1976-02-28 | Hitachi Ltd | Kyokuseio motsu keidenkino dosa futsukyukairo |
-
1984
- 1984-03-07 JP JP4194884A patent/JPS60188594A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4713842U (en) * | 1971-03-18 | 1972-10-18 | ||
| JPS5124747A (en) * | 1974-08-26 | 1976-02-28 | Hitachi Ltd | Kyokuseio motsu keidenkino dosa futsukyukairo |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007959A1 (en) * | 1996-08-22 | 1998-02-26 | Komatsu Ltd. | Method and device for crushing material by discharging pulsed electric energy and method and device for generating high-voltage pulse |
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