JPH0610395B2 - Drilling method and device - Google Patents
Drilling method and deviceInfo
- Publication number
- JPH0610395B2 JPH0610395B2 JP63252140A JP25214088A JPH0610395B2 JP H0610395 B2 JPH0610395 B2 JP H0610395B2 JP 63252140 A JP63252140 A JP 63252140A JP 25214088 A JP25214088 A JP 25214088A JP H0610395 B2 JPH0610395 B2 JP H0610395B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- bubbles
- hole
- dust
- ground
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011435 rock Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 13
- 239000004088 foaming agent Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 14
- 239000002360 explosive Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 241000270666 Testudines Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、削岩機を使用して、火薬装填孔、ロックボル
ト孔あるいはアンカーボルト孔等を穿孔する方法とその
装置に関する。Description: TECHNICAL FIELD The present invention relates to a method for drilling a powder charge hole, a lock bolt hole, an anchor bolt hole and the like using a rock drilling machine, and an apparatus therefor.
〔従来の技術〕 従来、削岩機によって行っている上記各種の孔の穿孔作
業において、くり粉を孔外に円滑に排出し、かつ粉塵の
発生を防止するために、大量の水を使用している。すな
わち、当該削岩機の先端部のウォータースィベルから送
給した水を、ロッドの送水孔を通じビット先端から吐出
させ、これによって、くり粉を孔外に流出するととも
に、粉塵が立ち込めるのを防止しているものである。[Prior Art] In the conventional drilling work of various holes by a rock drilling machine, a large amount of water is used in order to smoothly discharge the starch powder out of the holes and prevent the generation of dust. ing. That is, the water sent from the water swivel at the tip of the rock drill is discharged from the tip of the bit through the water feed hole of the rod, which allows the dust to flow out of the hole and prevent dust from entering. It is what
一般のドリフターで、上記における水の使用量は毎分３
０〜６０（水圧約３kg/cm2）に達している。In a general drifter, the amount of water used in the above is 3 per minute.
It has reached 0-60 (water pressure about 3 kg / cm 2 ).
しかし、この大量の水を使用できるのは、亀裂が少な
く、かつ水によって汚泥化しない地山性質のところに限
られる。すなわち 泥質岩（シルト岩、泥岩等）や凝灰岩等の軟岩は吸
水性の高い岩種なので水の使用によってくり粉が泥土化
し、また路盤が軟弱化して、各種作業車の走行の支障に
なる。However, this large amount of water can be used only in rocks that have few cracks and do not become sludge by water. In other words, soft rocks such as muddy rocks (silt rocks, mudstones) and tuff are highly water-absorbing rock species, so that the use of water makes mud dust and softens the roadbed, which hinders the running of various work vehicles. .
粘板岩、流紋岩、安山岩等の亀裂の発達した地山で
は、孔壁荒れを生じ、火薬充填やボルト挿入時に孔内の
掃除が必要になり、そのために多くの時間を費やさなけ
ればならない。In the ground with cracks such as slate, rhyolite, andesite, hole wall roughening occurs, and it is necessary to clean the inside of the hole at the time of filling explosives and inserting bolts, which requires a lot of time.
上記のように孔壁荒れが大きくなった場合、火薬充
填孔では薬包径と穿孔径との隙間に差がありすぎるとい
わゆるチャンネルエフェクトを起こし、残留火薬を生じ
る一因ともなり危険である。In the case where the hole wall roughness becomes large as described above, if there is too much difference between the drug package diameter and the hole diameter in the explosive filling hole, a so-called channel effect occurs, which is a cause of residual explosive charge and is dangerous.
吸水設備費及び濁水処理設備費が嵩む。等の問題が
あり、大量の水を使ってする穿孔法はいずれにしても欠
点が多い。Water absorption facility cost and muddy water treatment facility cost increase. However, the perforation method using a large amount of water has many drawbacks in any case.
このような欠点をさけるために、水に代えて圧縮空気を
使用すると、今度は粉塵が多くなり穿孔作業環境を悪化
する。特にそれは坑内作業であるとき顕著である。If compressed air is used instead of water in order to avoid such drawbacks, a large amount of dust will be produced and the drilling work environment will be deteriorated. Especially when it is underground work.
本発明の目的は、気泡を使用することによって上記の如
き諸種の欠点を発生させないで所期の穿孔を行うことに
ある。An object of the present invention is to perform desired drilling without using the above-mentioned various defects by using bubbles.
上記の目的を達成するために、本発明穿孔装置は、削岩
機ａに気泡発生装置ｂを接続してなるものであり、さら
に詳しくは削岩機ａのウォータースィーベル２に気泡発
生装置ｂの気泡吐出口を接続してなる。In order to achieve the above-mentioned object, the drilling device of the present invention comprises a rock drilling machine a to which a bubble generating device b is connected. More specifically, the water swivel 2 of the rock drilling machine a has a bubble generating device b. It is made by connecting a bubble discharge port.
また、本発明穿孔方法は、上記気泡発生装置ｂで発生さ
せた気泡を、削岩機ａのビット７から噴出させ、その気
泡によってくり粉をスラリー状にしながら削孔する。Further, in the boring method of the present invention, the air bubbles generated by the air bubble generating device b are jetted from the bit 7 of the rock drilling machine a, and the air bubbles are drilled while forming the slurry into slurry.
起泡剤溶液の供給量は、地山の性質に応じ調整するもの
であるが、たとえば硬岩の場合、０．２/minであると
き、経済性、粉塵の出方、地盤の汚泥化等の点からみて
好適である。The amount of the foaming agent solution supplied is adjusted according to the nature of the ground. For example, in the case of hard rock, when it is 0.2 / min, economic efficiency, dust generation, ground sludge formation, etc. From the point of view, it is preferable.
気泡は、それによってくり粉をスラリー化することをも
って足るから、あまり持続性のあるものであることを要
しない。Air bubbles do not need to be very persistent as they are sufficient to slurry the flour.
くり粉は気泡と混合してスラリー化し、そのスラリーは
噴出気泡のフラッシング作用によって孔外へ排出され、
該気泡は比較的短時間内に消失し、かつ粉塵は発生しな
い。The ground powder is mixed with air bubbles to form a slurry, and the slurry is discharged to the outside of the holes by the flushing action of the jet bubbles.
The bubbles disappear within a relatively short time and no dust is generated.
地山に亀裂がある場合、上記スラリーはその亀裂に入り
込み、余分なものを孔外に排出することになり、孔壁荒
れとそれに伴う前記欠点を無くす作用をする。When there is a crack in the ground, the slurry enters into the crack and discharges an extra substance to the outside of the hole, which serves to eliminate the roughness of the hole wall and the above-mentioned defects.
特に、起泡剤溶液の使用量は、０．２/minのように。
従来の水の使用量３０〜６０/minの１／１５０〜１／
２００と少なくて足り、したがって、泥土化しやすい地
山を穿孔する場合においても、路盤を軟弱化するような
ことが少ない。Especially, the amount of foaming agent solution used should be 0.2 / min.
1/150 to 1 / of the conventional water consumption of 30 to 60 / min
The number is as small as 200, and therefore, even when the natural ground that is likely to be mud is drilled, the roadbed is rarely weakened.
以下図示の実施例について詳しく述べる。 The illustrated embodiment will be described in detail below.
ａは削岩機、ｂは気泡発生装置で、この気泡発生装置ｂ
の吐出口は送給管１により削岩機ａのウォータースィベ
ル２に接続している。a is a rock drill, b is a bubble generator, and this bubble generator b
The discharge port of is connected to the water swivel 2 of the rock drill a by a feed pipe 1.
気泡発生装置ｂに、その起泡剤溶液注入口３から起泡剤
溶液を送り込むとともに、圧縮空気送入口４から圧縮空
気を送り込み、該気泡発生装置ｂで発生させた気泡を、
送給管１を通じウォータースィベル２に送給し、かつそ
れをロッド５の通孔６を通じビット７の噴出孔８から噴
出させながら、地山ｃにビット７により、所望の孔、例
えば、火薬装填孔９を穿孔する。The foaming agent solution is introduced into the bubble generating apparatus b from the foaming agent solution inlet 3 and compressed air is introduced from the compressed air inlet 4 to generate bubbles generated in the bubble generating apparatus b.
While feeding the water swivel 2 through the feeding pipe 1 and ejecting it from the ejection hole 8 of the bit 7 through the through hole 6 of the rod 5, the ground c is bit 7 by the bit 7 and the desired hole, for example, explosive loading Drill holes 9.
上記において、気泡はくり粉と混合してスラリー１１と
なり、地山ｃに亀裂１０がある場合には、その亀裂１０
に入り込むとともに、余分なスラリー１１は後続の噴出
気泡のフラッシング作用によって火薬装填孔９外へ排出
されるが、気泡は比較的短時間内に消失し、かつ粉塵は
発生しない。In the above, the air bubbles are mixed with the starch to form the slurry 11, and if the ground c has a crack 10, the crack 10
While entering, the excess slurry 11 is discharged to the outside of the explosive loading hole 9 by the flushing action of the subsequent jet bubbles, but the bubbles disappear within a relatively short time and dust is not generated.
実験によると、濃度２％の起泡剤溶液０．２/minに圧
縮空気５０m3/hを混合使用したとき、粉塵の発生、地盤
の汚泥軟弱化がなく、しかもノミ下がりも水だけを使用
した場合と大差がなかった。According to the experiment, when 2m concentration of foaming agent solution 0.2 / min was mixed with compressed air 50m 3 / h, no dust was generated, ground sludge was not weakened, and only fleas were dropped using water. It wasn't much different from what I did.
一般に、起泡剤溶液の濃度を上げると混合圧縮空気量を
減少させても所要の気泡を発生させることができる。Generally, if the concentration of the foaming agent solution is increased, the required bubbles can be generated even if the mixed compressed air amount is decreased.
しかし、起泡剤溶液の濃度や量はノミ下がりにあまり影
響しない。ただ起泡剤溶液の使用量を０．２/minより
少ない例えば０．１/minに減らすと粉塵が発生し始め
る。However, the concentration and the amount of the foaming agent solution do not affect the fleas reduction. However, when the amount of the foaming agent solution used is reduced to less than 0.2 / min, for example, 0.1 / min, dust starts to be generated.
このため、起泡剤溶液の量は、０．２/min程度が、経
済性、粉塵の出方、地盤の汚泥軟弱化等の点からみて好
適と認められる。Therefore, it is considered that the amount of the foaming agent solution of about 0.2 / min is suitable from the viewpoint of economy, dust generation, weakening of sludge in the ground, and the like.
起泡剤溶液の使用量０．２/minは、従来の水の使用量
３０〜６０/minの１／１５０〜１／２００と少なく、
特に泥土化しやすい地山を穿孔する場合においても、路
盤を軟弱化することが少ない。The amount of the foaming agent solution used is 0.2 / min, which is as small as 1/150 to 1/200 of the conventional amount of water used of 30 to 60 / min.
In particular, even when drilling a ground that is likely to become mud, the roadbed is rarely weakened.
気泡は、それによってくり粉の流動性を高めスラリー化
して、それを亀例１０に流入させるとともに、余分なも
のを孔外に排出させ、その際に粉塵が発生することのな
いことをもって足るから、あまり持続性のあるものであ
ることを要しない。It is sufficient that the air bubbles thereby increase the fluidity of the starch and make it into a slurry, which is allowed to flow into the turtle case 10 and the excess is discharged to the outside of the hole, and dust is not generated at that time. , Doesn't need to be very sustainable.
以上述べたところから明らかなように、本発明によれ
ば、くり粉は気泡と混合してスラリー化し、そのスラリ
ーは後続の噴出気泡のフラッシング作用によって孔外へ
排出され、該気泡は比較的短時間内に消失し、かつ粉塵
は発生しない。As is clear from the above description, according to the present invention, the ground powder is mixed with bubbles to form a slurry, and the slurry is discharged out of the holes by the flushing action of the subsequent jet bubbles, and the bubbles are relatively short. It disappears in time and no dust is generated.
亀裂の発達している地山の穿孔においては、上記スラリ
ーはその亀裂に入り込み、余分なものを孔外に排出する
ことになり、孔壁荒れを補正できるので、火薬の装填、
ロックボルトの挿入等の作業時間を短縮できる。In the drilling of the ground where the crack has developed, the slurry will enter the crack and discharge the extra material to the outside of the hole, so that the wall roughness of the hole can be corrected.
Work time such as inserting lock bolts can be shortened.
特に、起泡剤溶液の使用量は、０．２/minのように、
従来の水の使用量３０〜６０/minの１／１５０〜１／
２００と少なくて足り、したがって、泥土化しやすい地
山を穿孔する場合においても、路盤を軟弱化することが
少ない。In particular, the amount of the foaming agent solution used is 0.2 / min,
1/150 to 1 / of the conventional water consumption of 30 to 60 / min
The number is as small as 200, and therefore, even when drilling a ground that is likely to become mud, the roadbed is rarely weakened.
したがってまた、給水設備を大幅に縮小できるととも
に、濁水処理設備費ならびに路盤整備費を減少させるこ
とができる。Therefore, the water supply facility can be significantly reduced, and the turbid water treatment facility cost and the roadbed maintenance cost can be reduced.
また、気泡は、上記粉塵抑止等の効果を挙げるほかに、
ビットを冷却する効果もある。In addition to the effects of suppressing the above dust, bubbles also
It also has the effect of cooling the bit.
すなわち、通常圧縮空気だけを使用して穿孔する場合、
ビットが過熱しその寿命を縮める原因になっているが、
本発明においては、気泡がビットを冷却するのでそのよ
うなことはない。That is, when drilling using only compressed air,
Although it causes the bit to overheat and shorten its life,
In the present invention, this is not the case because the bubbles cool the bit.
図面は本発明の実施例を示すもので、第１図は装置の概
略側面図、第２図は穿孔状態の要部断面図、第３図は穿
孔の縦断面図である。 ａ……削岩機、ｂ……気泡発生装置、２……ウォーター
スィーベル、７……ビット。The drawings show an embodiment of the present invention. FIG. 1 is a schematic side view of the apparatus, FIG. 2 is a sectional view of an essential part in a perforated state, and FIG. 3 is a longitudinal sectional view of the perforated. a ... rock drill, b ... bubble generator, 2 ... water swivel, 7 ... bit.
Claims (3)
のビットから噴出させ、その気泡によってくり粉をスラ
リー状にしながら削孔することを特徴とする穿孔方法。1. A drilling method, characterized in that bubbles generated by a bubble generator are jetted from a bit of a rock drilling machine, and the bubbles are drilled while making the powder into a slurry form.
あることを特徴とする請求項１記載の穿孔方法。2. The punching method according to claim 1, wherein the amount of the foaming agent solution supplied is approximately 0.2 / min.
装置の気泡吐出口を接続してなることを特徴とする穿孔
装置。3. A perforation device comprising a water swivel of a rock drill and a bubble discharge port of a bubble generator connected to the water swivel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63252140A JPH0610395B2 (en) | 1988-10-07 | 1988-10-07 | Drilling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63252140A JPH0610395B2 (en) | 1988-10-07 | 1988-10-07 | Drilling method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02101284A JPH02101284A (en) | 1990-04-13 |
| JPH0610395B2 true JPH0610395B2 (en) | 1994-02-09 |
Family
ID=17233032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63252140A Expired - Lifetime JPH0610395B2 (en) | 1988-10-07 | 1988-10-07 | Drilling method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610395B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005526887A (en) * | 2002-05-24 | 2005-09-08 | スリーエム イノベイティブ プロパティズ カンパニー | Use of surface modified nanoparticles for oil recovery |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2506458Y2 (en) * | 1990-10-02 | 1996-08-07 | 株式会社大林組 | Cutting equipment for excavator |
| JP2765264B2 (en) * | 1991-04-11 | 1998-06-11 | 株式会社大林組 | Ground drilling method and device |
| WO2021024356A1 (en) * | 2019-08-05 | 2021-02-11 | ハイテック株式会社 | Bubble generating device and drilling device |
-
1988
- 1988-10-07 JP JP63252140A patent/JPH0610395B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005526887A (en) * | 2002-05-24 | 2005-09-08 | スリーエム イノベイティブ プロパティズ カンパニー | Use of surface modified nanoparticles for oil recovery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02101284A (en) | 1990-04-13 |
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