JPS63122889A - Rock block cut-out method from base rock - Google Patents
Rock block cut-out method from base rockInfo
- Publication number
- JPS63122889A JPS63122889A JP26808286A JP26808286A JPS63122889A JP S63122889 A JPS63122889 A JP S63122889A JP 26808286 A JP26808286 A JP 26808286A JP 26808286 A JP26808286 A JP 26808286A JP S63122889 A JPS63122889 A JP S63122889A
- Authority
- JP
- Japan
- Prior art keywords
- rock
- block
- cut
- out method
- cutting
- 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
- 239000011435 rock Substances 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 13
- 238000005422 blasting Methods 0.000 claims description 6
- 239000002360 explosive Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 1
- 101100008050 Caenorhabditis elegans cut-6 gene Proteins 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Working Measures On Existing Buildindgs (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】
（イ）技術分野
本発明は、建材や墓石その他種々の用途に用いられる岩
石ブロックを簡単かつ経済的に岩盤から切出すことがで
きる方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to a method for easily and economically cutting out rock blocks for use as building materials, tombstones, and various other uses from bedrock.
（ロ）背景技術
岩石ブロックを岩盤から切出し回収する場合には、露天
掘りでは多自由面であると共に作業場が広いため比較的
簡単であるが、坑内においてはこれまで水力式ディスキ
ング法が採用されているのみであり、該方法は装置が高
価で施工コストが高いため、従来から低コストの岩石ブ
ロック切出し法の開発が急務であった。(b) Background technology Cutting and recovering rock blocks from the bedrock is relatively easy in open pit mining because there are multiple free surfaces and a large working area, but in underground mines, the hydraulic discing method has not been adopted until now. Since this method requires expensive equipment and high construction costs, there has been an urgent need to develop a low-cost rock block cutting method.
（ハ）発明の開示
本発明は、効率的で低コストの岩石ブロックの切出し法
を提案するもので、坑内においては特に有効なものであ
り、岩盤の開放面に対し切出すべき所定ブロックの外周
に沿ってスリットを開設すると共に、該ブロックの背面
に沿って−又は複数本の発破孔を穿設した後、該発破孔
内で火薬類を爆発させることを特徴とするものである。(C) Disclosure of the Invention The present invention proposes an efficient and low-cost method for cutting out rock blocks, and is particularly effective in underground mines. This method is characterized in that a slit is opened along the block, and one or more blast holes are drilled along the back side of the block, and then explosives are exploded in the blast holes.
以下１本発明法の実施例を添付図面を参照して説明する
。An embodiment of the method of the present invention will be described below with reference to the accompanying drawings.
（ニ）実施例
第１図は岩石ブロックを切出す坑内の平面的説明図であ
り、ｌは坑道、２はブロックを切出す岩盤で、まず岩盤
２面に対し直角方向に先進導坑３を所定個所に所定距離
掘削開設しておく、該先進導坑３の両側はピラー（鉱柱
）４として残しておく部分であり、それより外側から岩
石ブロー、り５を切出して行く。(D) Embodiment Figure 1 is a plan explanatory diagram of the inside of a mine for cutting out rock blocks, where l is the tunnel, 2 is the rock from which the blocks are cut, and first, an advanced shaft 3 is cut in a direction perpendicular to the two sides of the rock. Both sides of the advanced shaft 3, which is excavated for a predetermined distance at a predetermined location, are to be left as pillars 4, and rock blowholes 5 are cut out from the outside.
しかして、ブロック５を切出すには、まず該ブロック５
を切出す岩ａ２の開放面（切出し面）に対して該ブロッ
ク５の正面形状たるべき外周に沿ってスリット６をブロ
ック５の背面部位の深さまで開設する。該スリット６の
開削には自動穿孔機やレッグドリル等を使用し、多数の
孔の連続によりスリット６を形成して行くことができる
（第２図参照）。Therefore, in order to cut out block 5, first
A slit 6 is opened to the depth of the back surface of the block 5 along the outer periphery of the block 5, which should be the front shape, on the open surface (cutting surface) of the rock a2 to be cut. An automatic drilling machine, a leg drill, or the like is used to drill the slit 6, and the slit 6 can be formed by forming a number of consecutive holes (see FIG. 2).
次に、上記先進導坑３側よりブロック５の背面に沿って
ピラー４から直角方向に穿孔機により複数本の発破孔７
を穿孔する。この発破孔７は切出すべきブロック５背面
の中央部分よりやや先方まで穿孔すればよく、ブロック
背面左右両端にわたるまで穿孔する必要はない、また、
該発破孔７はブロック５背面の全面にわたって上下均等
に穿孔する必要はなく、ブロック５背而中央部分で火薬
類８を爆発させれば充分であるので、比較的小さなブロ
ック（例えば５０〜１００ｃ■角）切出しの場合には背
面中央に向けて１〜３木、大きなブロック（例えば１０
０〜２００ｃ腫角）でも背面中央部に寄せて数本穿孔す
ればよい。Next, from the advanced shaft 3 side, a plurality of blast holes 7 are made by a drilling machine in a direction perpendicular to the pillar 4 along the back side of the block 5.
perforate. This blasting hole 7 only needs to be drilled to a point slightly beyond the central part of the back surface of the block 5 to be cut out, and it is not necessary to drill the hole 7 to cover both left and right ends of the back surface of the block.
The blasting holes 7 do not need to be formed evenly over the entire back surface of the block 5, and it is sufficient to explode the explosives 8 in the center of the back of the block 5. For corner) cutting, cut 1 to 3 pieces of wood toward the center of the back, or a large block (for example, 10 pieces)
Even if the tumor size is 0 to 200 cm, it is sufficient to make several holes near the center of the back.
そこで、該発破孔７内に黒色火薬等の火薬類８を装填し
て爆発させる０例えば花崗岩ブロックの切出しの場合、
火薬装薬量は黒色火薬で約３０ｇ／１１１３（ブロック
容積）を各発破孔７に等分すれば充分である。Therefore, explosives 8 such as black gunpowder are loaded into the blast hole 7 and exploded. For example, in the case of cutting out a granite block,
It is sufficient that the amount of explosive charge is approximately 30 g/1113 (block volume) of black powder divided equally into each blast hole 7.
この発破により発生するガス膨張によってブロック５の
背面が岩盤２から絶ち切られると共に、該ブロック５が
切出し面から押出される。ブロック５は発破により切出
し面から外部に完全に押出させるようにしてもよいし、
ブｔ０２−／り５の半分以上を切出し面から押出させて
、あとはフォークリフト等の機械力により抜出しを行な
ってもよい。Due to the gas expansion generated by this blasting, the back surface of the block 5 is cut off from the rock mass 2, and the block 5 is pushed out from the cut surface. The block 5 may be completely extruded from the cut surface by blasting, or
It is also possible to extrude half or more of the butt t02-/5 from the cutting surface, and then extract the rest by mechanical force such as a forklift.
なお、ブロック５の岩盤２面からの抜出し作業を容易と
するため、ブロック５の切出し順序は岩盤奥方向へのみ
進むのではなく、横方へも拡大させて行くことは勿論で
ある。In order to facilitate the work of extracting the blocks 5 from the two sides of the bedrock, it goes without saying that the order of cutting out the blocks 5 is not only in the deep direction of the bedrock, but also in the lateral direction.
（ホ）発明の効果
本発明法は上記のようにしてなり、坑内での岩石ブロッ
クの切出し回収の問題であるブロック背面の切出しとブ
ロックの抜出しが簡単、瞬時に行なわれるので、極めて
効果的かつ経済的である。(E) Effects of the Invention The method of the present invention is as described above, and the problems of cutting and recovering rock blocks in a mine, such as cutting out the back side of the block and extracting the block, can be easily and instantaneously carried out, making it extremely effective and effective. Economical.
なお、本発明法は坑内における岩石ブロックの切出しに
限らず、露天での岩石ブロックの切出し等にも適用でき
ることは勿論である。Note that the method of the present invention is of course applicable not only to cutting out rock blocks in a mine, but also to cutting out rock blocks in an open pit.
第１図は本発明に係る岩石ブロックの切出し法の施工要
領を示した坑内の平面的説明図、第２図は岩石ブロック
切出しの一過程を示す説明図である。
符号説明
ｌ−坑道 ２−岩盤 ３−先進導坑 ４−ピラー５−切
出すべき岩石ブロー、り ６−スリット７−発破孔 ８
−火薬類
実用新案登録出願人 同和鉱業株式会社第１図
第２図FIG. 1 is an explanatory plan view of a mine showing the procedure for cutting out a rock block according to the present invention, and FIG. 2 is an explanatory diagram showing one process of cutting out a rock block. Symbol explanation 1 - Mine shaft 2 - Rock 3 - Advanced shaft 4 - Pillar 5 - Rock blow to be cut 6 - Slit 7 - Blasting hole 8
-Applicant for Utility Model Registration for Explosives Dowa Mining Co., Ltd. Figure 1 Figure 2
Claims (1)
ってスリットを開設すると共に、該ブロックの背面に沿
って発破孔を穿設した後、該背面孔内で火薬類を爆発さ
せることを特徴とする岩盤からの岩石ブロック切出し法
。A slit is opened along the outer periphery of a predetermined block to be cut out from the open surface of the bedrock, and a blasting hole is drilled along the back side of the block, and then explosives are exploded in the back side hole. A method for cutting out rock blocks from bedrock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26808286A JPS63122889A (en) | 1986-11-11 | 1986-11-11 | Rock block cut-out method from base rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26808286A JPS63122889A (en) | 1986-11-11 | 1986-11-11 | Rock block cut-out method from base rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63122889A true JPS63122889A (en) | 1988-05-26 |
| JPH0370078B2 JPH0370078B2 (en) | 1991-11-06 |
Family
ID=17453636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26808286A Granted JPS63122889A (en) | 1986-11-11 | 1986-11-11 | Rock block cut-out method from base rock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63122889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144450A (en) * | 2007-12-17 | 2009-07-02 | Hitachi Zosen Corp | Method for destroying concrete structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832270A (en) * | 1981-08-18 | 1983-02-25 | Mitsubishi Electric Corp | Reproducer for recording disc |
| JPS603387A (en) * | 1983-06-17 | 1985-01-09 | 株式会社奥村組 | Rock drilling method |
-
1986
- 1986-11-11 JP JP26808286A patent/JPS63122889A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832270A (en) * | 1981-08-18 | 1983-02-25 | Mitsubishi Electric Corp | Reproducer for recording disc |
| JPS603387A (en) * | 1983-06-17 | 1985-01-09 | 株式会社奥村組 | Rock drilling method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144450A (en) * | 2007-12-17 | 2009-07-02 | Hitachi Zosen Corp | Method for destroying concrete structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0370078B2 (en) | 1991-11-06 |
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