JPH0466140A - Crushing method with crushing agent and protective body used for the method - Google Patents
Crushing method with crushing agent and protective body used for the methodInfo
- Publication number
- JPH0466140A JPH0466140A JP17883090A JP17883090A JPH0466140A JP H0466140 A JPH0466140 A JP H0466140A JP 17883090 A JP17883090 A JP 17883090A JP 17883090 A JP17883090 A JP 17883090A JP H0466140 A JPH0466140 A JP H0466140A
- Authority
- JP
- Japan
- Prior art keywords
- crushing
- agent
- crushed
- water
- crushing agent
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims description 12
- 230000001012 protector Effects 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 6
- 235000012255 calcium oxide Nutrition 0.000 abstract description 3
- 239000000292 calcium oxide Substances 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 2
- 239000002360 explosive Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は生石灰等からなる破砕剤の水和エネルギーを
利用してコンクリート、あるいは岩石等の被破砕物を破
砕する方法およびそれに用いる防護体に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method for crushing objects to be crushed, such as concrete or rocks, using the hydration energy of a crushing agent made of quicklime, etc., and a protective body used therein. .
被破砕物に破砕孔を穿設し、この破砕孔に破砕剤および
水を装填し、破砕剤の水和エネルギーを利用して被破砕
物を破砕する方法が実用化されている。この破砕方法で
は気温が高い場合、あるいは破砕孔の孔径が大きい場合
等には水和反応の熱エネルギーが孔内の破砕剤に蓄積さ
れ、水分の一部が水蒸気となり、孔外に爆発的に噴出す
る危険がある。この様な危険を回避するために、従来は
、所定の間隔に穿設した複数の破砕孔上にまたがり広い
面積の防護シートを敷設し、安全性を図っていた。しか
し、この手段は、多数の破砕孔に破砕剤および水を装填
して行く過程で順次、破砕孔上に、広い面積の重い防護
シートを敷設していかなくてはならず、作業に多大の労
力を必要とした。また、破砕孔間に生じる亀裂は防護シ
ートをめくらないと確認ができないので、工程管理に手
間がかかり、かつ危険を伴った。この発明は上記問題点
に着目しなされたものである。その目的は安全確保のた
めの作業性が優れ、かつ亀裂の発生を目視で確認でき工
程管理が容易である破砕剤による破砕方法およびそれに
用いる防護体を提供するにある。A method has been put into practical use in which a crushing hole is drilled in a material to be crushed, a crushing agent and water are loaded into the hole, and the material is crushed using the hydration energy of the crushing agent. In this crushing method, when the temperature is high or the diameter of the crushing hole is large, the thermal energy of the hydration reaction is accumulated in the crushing agent inside the hole, and some of the water becomes steam, which explodes outside the hole. There is a risk of eruption. In order to avoid such a danger, conventionally, a protective sheet with a wide area was laid over a plurality of crushing holes drilled at predetermined intervals to ensure safety. However, this method requires a large number of holes to be filled with crushing agent and water, and heavy protective sheets over a wide area must be laid one after another over the holes, which requires a lot of work. It required effort. In addition, cracks that occur between the crushed holes cannot be confirmed unless the protective sheet is turned over, making process control time-consuming and dangerous. This invention has been made in view of the above-mentioned problems. The purpose is to provide a crushing method using a crushing agent that has excellent workability for ensuring safety, allows visual confirmation of crack occurrence, and facilitates process control, and a protective body used therein.
この破砕物による破砕方法は被破砕物に穿設した破砕孔
に破砕剤および水を装填し、被破砕物を破砕する方法に
おいて、破砕剤および水を装填した破砕孔１つ毎に、環
状保持体にその環状内側面を覆う弾性膜体を取付けてな
る防護体を被せることを特徴とする。In this method of crushing objects, a crushing agent and water are loaded into crushing holes drilled in the object to be crushed. It is characterized by covering the body with a protective body formed by attaching an elastic membrane covering the annular inner surface of the body.
他の一つの発明になる防護体は、破砕剤による破砕方法
に用いる防護体であって、環状保持体にその環状内側面
を覆う弾性膜体を取付けてなることを特徴とする。Another aspect of the invention is a protector used in a crushing method using a crushing agent, and is characterized by having an annular holding body attached with an elastic membrane covering the annular inner surface thereof.
この発明で用いる防護体の弾性膜体は、適度な強度と伸
縮がある材料からなり、破砕剤の爆発的に噴出する力を
吸収、緩和する機能をもつものである。例えば材質的に
ネオプレンゴム、スチレン−ブタジェンゴム、ブチルゴ
ム、ウレタンゴム、天然ゴム等から選択することができ
る。環状保持体の形状は、円形、四方形等であり、円形
の場合の通常直径は２０ｃｍ〜５０ｃｍ程度であり、好
ましくは２５ｃｍ〜３０ｃｍである。The elastic membrane of the protector used in this invention is made of a material with appropriate strength and elasticity, and has the function of absorbing and mitigating the force of the explosive jetting of the crushing agent. For example, the material can be selected from neoprene rubber, styrene-butadiene rubber, butyl rubber, urethane rubber, natural rubber, and the like. The shape of the annular holder is circular, quadrangular, etc., and in the case of a circular shape, the diameter is usually about 20 cm to 50 cm, preferably 25 cm to 30 cm.
また防護体全体の重量は５〜５０ｋｇ、好ましくは８〜
２０ｋｇである。破砕剤の爆発的噴出を制御する上で重
量５ｋｇ以下では軽すぎて防護体の機能を十分に発揮で
きない。また５０ｋｇ以上は重すぎ実用的でない。環状
保持体は弾性膜体を保持するものであるので鋼板、真鍮
、アルミ合金等一般的には金属材が好ましい。しかしガ
ラス繊維補強等のプラスチック製保持体も使用可能であ
る。本発明において弾性膜体は二重もしくは、それ以上
積層することによって破砕剤噴出の防護機能は著しく向
上する。The weight of the entire protective body is 5 to 50 kg, preferably 8 to 50 kg.
It is 20 kg. If the weight is less than 5 kg, it is too light to control the explosive ejection of the crushing agent, and the function of the protector cannot be fully demonstrated. Moreover, a weight of 50 kg or more is too heavy to be practical. Since the annular holder is for holding the elastic membrane, a metal material such as a steel plate, brass, or aluminum alloy is generally preferable. However, it is also possible to use plastic carriers, such as those reinforced with glass fibers. In the present invention, by laminating two or more elastic membranes, the protective function against ejection of crushing agent is significantly improved.
第１．２図のごとく、コンクリート造の被破砕物１の平
面上に６０ｃｍ間隔で複数の破砕孔２を穿設し、その孔
内に順次生石灰を主材とする破砕剤３および水４を装填
し、その１孔毎にその上に防護体５を被せた。防護体５
は第３図に示す通り鋼板製の環状保持体６に、その内側
面をハツト形をなし覆う弾性膜体７を二重にボルト８で
取付け、直径３０ｃｍ、弾性膜体の厚み２ｍｍの円形で
重さ１０ｋｇであった。この防護体５を用いたところ破
砕孔２からの破砕剤の爆発的な噴出を抑制し、噴出物の
飛散を防止することができた。また破砕孔２−２間に発
生する亀裂９を、そのままの状態で目視、確認できた。As shown in Fig. 1.2, a plurality of crushing holes 2 are drilled at 60 cm intervals on the plane of a concrete object 1, and a crushing agent 3 mainly composed of quicklime and water 4 are sequentially poured into the holes. It was loaded, and the protector 5 was placed over each hole. Protector 5
As shown in Fig. 3, an elastic membrane 7 which forms a hat shape and covers the inner surface of the annular holder 6 made of a steel plate is attached with double bolts 8, and a circular shape with a diameter of 30 cm and a thickness of the elastic membrane 2 mm is attached. It weighed 10 kg. When this protector 5 was used, it was possible to suppress the explosive ejection of the crushing agent from the crushing hole 2 and prevent the scattering of ejected materials. Moreover, the crack 9 generated between the fracture holes 2 and 2 could be visually confirmed as it was.
本発明において第３図のＡ−Ａ断面図に示す通り弾性膜
体をハツト形凸状に成形して設置することにより本発明
の効果は、さらに著しく高めることができる。In the present invention, the effects of the present invention can be further significantly enhanced by molding and installing the elastic membrane body into a hat-shaped convex shape as shown in the A-A sectional view of FIG.
本発明は破砕剤および水を装填した破砕孔１孔毎に環状
保持体の内側面を覆い弾性膜体を取付けた防護体を被せ
るので、従来の複数の破砕孔にまたがり、面積が広く重
い防護シートを被せる場合に比べ、作業性が簡易である
と共に、破砕剤の噴出に対する防護機能が確実であり、
現場保安が著しく向上する。また亀裂をそのままの状態
で目視、確認できるので工程の管理が容易となった。The present invention covers the inner surface of the annular holder for each crushing hole loaded with crushing agent and water, and covers it with a protective body attached with an elastic membrane. Compared to the case of covering with a sheet, it is easier to work with, and the protection function against spouting of crushing agent is reliable.
On-site security is significantly improved. Additionally, since cracks can be visually observed and confirmed as they are, process management has become easier.
図面はこの発明の実施例を示すものであり、第１．２図
は被破砕物に穿設した破砕孔上に防護体を被せた状態の
断面図および平面図、第３図（ａ）、 （ｂ）は実施例
にて使用した防護体の平面詳細図およびｌ−Ａ断面図、
第４図は防護体の変形例を示す平面図である。
１・・・被破砕物、２・・・破砕孔、３・・・破砕剤、
４・・・水、５・・・防護体、６・・・環状保持体、７
・・・弾性膜体、８・・・ボルト、９・・・亀裂。
第
図
第
図
（ＣＩ）
（ｂ）
第
図The drawings show an embodiment of the present invention, and Fig. 1.2 is a sectional view and a plan view of a state in which a protective body is placed over a crushing hole drilled in an object to be crushed, Fig. 3(a), (b) is a detailed plan view and a 1-A sectional view of the protective body used in the example,
FIG. 4 is a plan view showing a modified example of the protective body. 1... object to be crushed, 2... crushing hole, 3... crushing agent,
4... Water, 5... Protector, 6... Annular holding body, 7
...Elastic membrane body, 8...Bolt, 9...Crack. Figure (CI) (b) Figure
Claims (2)
填し、被破砕物を破砕する方法において、破砕剤および
水を装填した破砕孔１つ毎に、環状保持体にその環状内
側面を覆う弾性膜体を取付けてなる防護体を被せること
を特徴とする破砕剤による破砕方法。(1) In a method of crushing a material by loading a crushing agent and water into a crushing hole drilled in a material to be crushed, for each crushing hole loaded with a crushing agent and water, the annular holder is A crushing method using a crushing agent characterized by covering the inner surface with a protective body made by attaching an elastic membrane body.
環状保持体にその環状内側面を覆う弾性膜体を取付けて
なることを特徴とする防護体。(2) A protector used in a crushing method using a crushing agent,
A protective body comprising an annular holding body and an elastic membrane covering the annular inner surface of the holding body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17883090A JPH0466140A (en) | 1990-07-06 | 1990-07-06 | Crushing method with crushing agent and protective body used for the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17883090A JPH0466140A (en) | 1990-07-06 | 1990-07-06 | Crushing method with crushing agent and protective body used for the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0466140A true JPH0466140A (en) | 1992-03-02 |
Family
ID=16055413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17883090A Pending JPH0466140A (en) | 1990-07-06 | 1990-07-06 | Crushing method with crushing agent and protective body used for the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0466140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102639A (en) * | 2004-10-05 | 2006-04-20 | Sumitomo Osaka Cement Co Ltd | Accessory for static crushing |
| WO2006103934A1 (en) * | 2005-03-28 | 2006-10-05 | Sumitomo Osaka Cement Co., Ltd. | Static crushing method, aid for static crushing used for the crushing method, and filling tool |
| JP2006272089A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Accessory for static crushing |
-
1990
- 1990-07-06 JP JP17883090A patent/JPH0466140A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102639A (en) * | 2004-10-05 | 2006-04-20 | Sumitomo Osaka Cement Co Ltd | Accessory for static crushing |
| WO2006103934A1 (en) * | 2005-03-28 | 2006-10-05 | Sumitomo Osaka Cement Co., Ltd. | Static crushing method, aid for static crushing used for the crushing method, and filling tool |
| JP2006272089A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Accessory for static crushing |
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