JPH02115490A - Crushing method for base rock or concrete - Google Patents
Crushing method for base rock or concreteInfo
- Publication number
- JPH02115490A JPH02115490A JP26618388A JP26618388A JPH02115490A JP H02115490 A JPH02115490 A JP H02115490A JP 26618388 A JP26618388 A JP 26618388A JP 26618388 A JP26618388 A JP 26618388A JP H02115490 A JPH02115490 A JP H02115490A
- Authority
- JP
- Japan
- Prior art keywords
- rock
- concrete
- flexible
- wedge
- rigidity
- 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 abstract description 48
- 238000000034 method Methods 0.000 title claims description 13
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 238000009412 basement excavation Methods 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、岩盤またはコンクリートの破砕方法に係るも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for crushing rock or concrete.
（従来の技術）
従来、岩盤またはコンクリートを破砕する場合、（ｉ）
第７図に示すように、岩１ （ａ）に設けた削孔部（ハ
）にゴムチューブ（Ｃ）を挿入し、同ゴムチューブ（Ｃ
）に圧力流体を封入して岩盤の掘削部内周面に圧力を作
用させ、岩盤内に引張力を作用させる方法、（ｉｉ）第
８図に示すように岩盤（ａ）に設けた削孔部Φ）に石灰
等の膨張剤（ｅ）を充填し、同膨脹剤の吸水膨脹力を利
用して岩盤を破砕する方法、（ｉｉｉ ）第９図に示す
ように、岩盤（ａ）に設けた削孔部の）に予め鋼製ガイ
ド（ｆ）を設置し、油圧Ｐによって同ガイド内に喫（ロ
）を模入して前記ガイドを拡開せしめ、掘削内周面を加
圧して岩盤を破砕する方法が行なわれている。(Prior art) Conventionally, when crushing rock or concrete, (i)
As shown in Figure 7, insert the rubber tube (C) into the hole (c) made in rock 1 (a), and
) A method in which a pressure fluid is sealed in the rock mass to apply pressure to the inner circumferential surface of the excavated part of the rock mass, and a tensile force is applied within the rock mass. Φ) Filling with an expanding agent (e) such as lime, and using the water absorption and expansion power of the expanding agent to crush the rock; (iii) As shown in Figure 9, A steel guide (f) is installed in advance in the hole section), and a draft (b) is inserted into the guide using hydraulic pressure P to expand the guide, pressurizing the inner circumferential surface of the excavation and breaking the rock. A method of crushing is being used.
（発明が解決しようとする課題）
しかしながら前記（ｉ）の方法は、岩盤破砕後、ゴムチ
ューブが亀裂内に食い込んで破断するため反復使用が困
難である。また硬岩を対象とする場合、岩盤を破砕する
のに必要な圧力を発生し難いという問題点があった。(Problems to be Solved by the Invention) However, the method (i) described above is difficult to repeatedly use because the rubber tube digs into the crack and breaks after the rock is crushed. Furthermore, when targeting hard rock, there is a problem in that it is difficult to generate the pressure necessary to crush the rock.
また、前記（ｉｉ）の方法は、使用薬剤が高価であり、
化学反応を伴なうことから慎重な作業を必要とし、作業
効率が良好でないという問題点があった。Furthermore, in the method (ii), the chemicals used are expensive;
Since it involves a chemical reaction, it requires careful work and has the problem of poor work efficiency.
更に、前記（ｍ）の方法は、載荷装置として油圧シリン
グを使用するため、装置全体の重量が大となり、施工効
率が低減し、また工費が嵩むという問題点がある。Furthermore, since the method (m) uses a hydraulic sill as a loading device, there are problems in that the weight of the entire device increases, construction efficiency decreases, and construction costs increase.
本発明は前記従来技術の有する問題点に鑑みて提案され
たもので、その目的とする処は、筒車な構成で、岩盤ま
たはコンクリートを効率よく確実に破砕でき、工費の節
減が図られる岩盤またはコンクリートの破砕方法を提供
する点にある。The present invention has been proposed in view of the problems of the prior art described above, and its purpose is to provide a rock mass with an hour wheel configuration that can efficiently and reliably crush rock or concrete, thereby reducing construction costs. Or, it provides a method for crushing concrete.
（課題を解決するための手段）
前記の目的を達成するため、本発明に係る岩盤またはコ
ンクリートの破砕方法は、岩盤またはコンクリートに設
けた掘削孔に、中空部を有する三角形以外の多角形状断
面の柔剛性模を嵌入・するとともに、同柔剛性楔の外周
面と前記掘削孔の内周面との間に高剛性載荷板を介装し
、次いで前記柔剛性模の中空部内に圧力流体を封入して
同中空部にかかる内圧によって前記柔剛性楔を変形せし
め、前記高剛性載荷仮を介して岩盤またはコンクリート
の掘削孔内面に圧力を伝達することを特徴とするもので
ある。(Means for Solving the Problems) In order to achieve the above object, the rock or concrete crushing method according to the present invention includes a method for crushing rock or concrete in which a polygonal cross section other than a triangle having a hollow portion is drilled into an excavated hole in rock or concrete. At the same time as inserting a flexible and rigid wedge, a high-rigidity loading plate is interposed between the outer circumferential surface of the flexible and rigid wedge and the inner circumferential surface of the borehole, and then pressurized fluid is sealed in the hollow part of the flexible and rigid wedge. The flexible and rigid wedge is deformed by the internal pressure applied to the hollow portion, and the pressure is transmitted to the inner surface of the excavation hole in rock or concrete via the highly rigid loading material.
（作用）
本発明は前記したように構成されているので、岩盤また
はコンクリートに設けた掘削孔に嵌入された三角形以外
の多角形状断面の柔剛性楔に設けた中空部に圧力流体を
封入して同中空部に内圧を与えることによって、前記柔
剛性楔を膨脹変形せしめることによって、同柔剛性模の
外周面と、前記岩盤またはコンクリートの掘削孔内面と
の間に介装された高剛性載荷仮に圧力を伝達し、更に同
高剛性載荷仮によって岩盤またはコンクリート内に圧力
を伝達し、この結果、同岩盤またはコンクリート内に引
張圧力を生起せしめ、この引張力によって岩盤またはコ
ンクリート内に引張亀裂を生起せしめて、同岩盤または
コンクリートを破砕するものである。(Function) Since the present invention is configured as described above, a pressurized fluid is sealed in a hollow portion provided in a flexible and rigid wedge having a polygonal cross section other than a triangular shape, which is inserted into an excavation hole made in rock or concrete. By applying internal pressure to the hollow part, the flexible and rigid wedge is expanded and deformed, and a high rigidity load inserted between the outer peripheral surface of the flexible and rigid wedge and the inner surface of the rock or concrete excavation hole is temporarily removed. Transmits pressure and further transmits pressure into the rock or concrete with the same stiffness loading, resulting in tensile pressure in the rock or concrete, and this tensile force causes tensile cracks in the rock or concrete. At the very least, it crushes the same bedrock or concrete.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
岩盤（１）に設けた掘削孔（２）内に、三角形以外の多
角形断面、例えば四角形状断面で、中心軸に沿って中空
部（３）を有するゴム等よりなる柔剛性楔（４）を嵌入
するとともに、同中空部（３）に柔剛性チューブ（５）
を嵌入する。A flexible and rigid wedge (4) made of rubber or the like has a polygonal cross section other than a triangle, for example, a square cross section, and has a hollow part (3) along the central axis, inside the excavation hole (2) made in the rock (1). At the same time, insert the flexible and rigid tube (5) into the hollow part (3).
Insert.
図中（６）はゴム製柔剛性チューブ（５）の先端面に配
設された当板で、柔剛性チューブ（５）の先端が直接、
岩！（１）に接触しないようにするものである。In the figure, (6) is a contact plate placed on the tip surface of the rubber flexible and rigid tube (5), and the tip of the flexible and rigid tube (5) is directly connected to the
rock! This is to prevent contact with (1).
更に前記多角形状断面の柔剛性Ｗ（４）の外周面と掘削
孔（２）の内周面との間に、弦月状断面の高剛性載荷板
（７）を介装する。Furthermore, a high-rigidity loading plate (7) with a crescent-shaped cross section is interposed between the outer peripheral surface of the flexible and rigid W (4) having a polygonal cross section and the inner peripheral surface of the excavation hole (2).
次いで前記柔剛性楔（４）の中空部（３）内の柔剛性チ
ューブ（５）に、図示せぬ液圧供給装置を介して第２図
の矢印（８）に示すように圧力流体を封入し、前記柔剛
性チューブ（５）を介して柔剛性模（４）の内周面に内
圧Ｐを作用せしめると、この圧力によって柔剛性楔（４
）が変形し、弦月状断面の各高剛性載荷板（７）に圧力
が伝達され、更に同高剛性載荷板（７）から岩盤（１）
に圧力が伝達される。Next, pressure fluid is sealed into the flexible tube (5) in the hollow part (3) of the flexible wedge (4) as shown by the arrow (8) in FIG. 2 via a hydraulic pressure supply device (not shown). When the internal pressure P is applied to the inner peripheral surface of the flexible and rigid model (4) through the flexible and rigid tube (5), this pressure causes the flexible and rigid wedge (4
) is deformed, pressure is transmitted to each high-rigidity loading plate (7) with a crescent-shaped cross section, and the rock mass (1) is further deformed from the same high-rigidity loading plate (7).
Pressure is transmitted to
この結果、同着１！ｉ！（１）には引張力が作用し、こ
の引張力によって岩！（１）内に引張亀裂が発生し、同
岩盤（１）が破砕される。As a result, it was a tie! i! A tensile force acts on (1), and this tensile force causes it to become a rock! Tensile cracks occur in (1), and the rock (1) is fractured.
なお前記実施例において、柔剛性楔（４）は四角形断面
のものが使用され、岩盤（１）における亀裂発生の方向
を９０度間隔に制御でき、岩！（＋）の発破を使用しな
い静的な破砕が可能となる。In the above embodiment, the flexible and rigid wedge (4) has a rectangular cross section, and the direction of crack generation in the rock (1) can be controlled at 90 degree intervals. Static crushing without using (+) blasting becomes possible.
前記柔剛性楔（４）は四角形断面の池、三角形以外の任
意の多角断面形のものが使用される。The flexible and rigid wedge (4) may have a square cross section or any polygonal cross section other than a triangular cross section.
なお本発明において柔剛性楔（４）として、三角形以外
の多角形断面としたのは、掘削孔（２）の径が同一の場
合、三角形以外の多角形断面の喫（４）の方が、校内の
ゴムチューブ（５）の径を二角形断面の＆ｌ ＋４’ｌ
の場合より大きくすることができ、ゴムチューブの径が
大きい程、大きな発生応力が得られることと、多角形断
面の模の方が削孔パターンを簡素化でき、実際の現場作
業に対して有利であるという理由による。In the present invention, the flexible and rigid wedge (4) has a polygonal cross section other than a triangle because, when the diameter of the borehole (2) is the same, the wedge (4) with a polygonal cross section other than a triangle is The diameter of the rubber tube (5) inside the school is the square cross section &l + 4'l
The larger the diameter of the rubber tube, the greater the generated stress, and the polygonal cross-section pattern simplifies the drilling pattern, which is advantageous for actual field work. This is because.
第３図乃至第５図は本発明に係る四角形断面の喫と、三
角形断面の模との比較例を示し、第３Ａ図乃至第５Ａ図
は前者を、第３Ｂ図乃至第５Ｂ図は後者を示し、これよ
り同一削孔径の場合四角形断面の喫の方が径ｄの大きい
ゴムチューブを使用できることが判る。FIGS. 3 to 5 show comparative examples of a rectangular cross-section model according to the present invention and a triangular cross-section model, with FIGS. 3A to 5A showing the former, and FIGS. 3B to 5B showing the latter. From this, it can be seen that for the same drilling diameter, a rubber tube with a larger diameter d can be used with a rectangular cross-section.
第６図は本発明をトンネルの掘削に適用した実施例を示
し、トンネル切羽面θ０の岩盤に予め掘削した掘削孔０
２１に前記第１図及び第２図に示した破砕装置ｔ （Ａ
）を装着し、油圧ユニツｌ及び同ユニットＯｍに接続さ
れたホースＯａを介して、前記破砕装置（Ａ）における
柔剛性楔（４）の中空部（３）内に嵌装された柔剛性チ
ューブ（５）に圧力油を供給し、同チューブ（５）の内
周面に内圧を作用させ、切羽面（１０に亀裂０５）を発
生せしめるものである。FIG. 6 shows an embodiment in which the present invention is applied to tunnel excavation.
21, the crushing device t (A
) and is fitted into the hollow part (3) of the flexible wedge (4) in the crushing device (A) via the hydraulic unit L and the hose Oa connected to the same unit Om. Pressure oil is supplied to tube (5), and internal pressure is applied to the inner peripheral surface of tube (5) to generate a crack 05 on face surface (10).
なお前記各実施例は本発明を岩盤の破砕に適用した場合
を示すが、コンクリートの破砕にも適用されるものであ
る。Although each of the above embodiments shows the case where the present invention is applied to crushing rock, it is also applicable to crushing concrete.
（発明の効果）
本発明によれば前記したように、岩盤またはコンクリー
トに設けた掘削孔に嵌入した三角形以外の多角形断面の
柔剛性楔の中空部内に圧力流体を封入することによって
同柔剛性楔を変形せしめ、これに伴って、同柔剛性楔の
外周面と前記掘削孔の内周面との間に介装された高剛性
載荷板を介して岩盤またはコンクリートに圧力を伝達さ
せ、同岩盤またはコンクリート内に引張力を集中させる
ようにしたものであり、前記柔剛性楔の断面形状を選定
することによって、前記岩盤またはコンクリート内の亀
裂の発生方向を制御し発破を使用しないで効率的な岩盤
またはコンクリートの静的な破砕が行なわれる。(Effects of the Invention) According to the present invention, as described above, by sealing a pressure fluid into the hollow part of a flexible-rigid wedge having a polygonal cross section other than a triangle, which is inserted into an excavation hole made in rock or concrete, the flexible-rigid wedge is The wedge is deformed, and as a result, pressure is transmitted to the rock or concrete through a high-rigidity loading plate interposed between the outer circumferential surface of the flexible and rigid wedge and the inner circumferential surface of the excavation hole. The tensile force is concentrated in the rock or concrete, and by selecting the cross-sectional shape of the flexible wedge, the direction in which cracks occur in the rock or concrete can be controlled and efficiently achieved without using blasting. Static crushing of rock or concrete is carried out.
また本発明によれば岩盤またはコンクリートを破砕する
加圧用の柔剛性楔が直接岩盤またはコンクリートに接す
ることがなく、同校の外周面に配設された高剛性載荷板
を介して岩盤またはコンクリートの掘削孔内周面に加圧
されるので、岩盤またはコンクリートの削孔部に加圧部
材としてのゴムチューブを挿入し、同チューブに圧力流
体を封入して直接掘削部内周面を加圧する従来法のよう
に、加圧部材が破損する慣れがなく、破砕用部材を反覆
使用することができる。In addition, according to the present invention, the flexible and rigid wedge for pressurizing the rock or concrete does not come into direct contact with the bedrock or concrete, and the wedge is used to crush the bedrock or concrete through a highly rigid loading plate installed on the outer circumference of the school. Since pressure is applied to the inner circumferential surface of the excavation hole, the conventional method involves inserting a rubber tube as a pressurizing member into the excavated part of the rock or concrete, and filling the tube with pressurized fluid to directly pressurize the inner circumferential surface of the excavated part. As described above, the crushing member can be used repeatedly without the risk of the pressure member being damaged.
また本発明によれば従来の膨張剤を使用した破砕方法に
比して、高価な薬品を使用することなく、経済的に岩盤
またはコンクリートを破砕しうるちのである。Furthermore, according to the present invention, rock or concrete can be crushed economically without using expensive chemicals, compared to conventional crushing methods using expansion agents.
更に本発明によれば、前記削孔部に調製ガイドを設置し
、油圧で同ガイドに櫟を模入する方法にして、大損りな
油圧シリンダを使用する必要がな（、旅工効率が向ヒさ
れ、工費が節減される。Furthermore, according to the present invention, a preparation guide is installed in the hole-drilling part, and the guide is imitated by hydraulic pressure, so there is no need to use a costly hydraulic cylinder (and the efficiency of travel is improved. This will save construction costs.
更に、また本発明においては前記柔剛性楔を三角形以外
の多角形断面とすることによって同一削孔径の場合、模
内のゴムチューブの径を大きくし、大きな発生応力を得
ることができ、また三角形断面の梗に比して削孔パター
ンを筒素化でき、実作業に対して有利である。Furthermore, in the present invention, by making the flexible and rigid wedge have a polygonal cross section other than a triangle, it is possible to increase the diameter of the rubber tube in the groove and obtain a large stress when the hole diameter is the same. The drilling pattern can be made into a cylindrical shape compared to the cross-sectional pattern, which is advantageous for actual work.
第１図は本発明に係る岩盤またはコンクリートの破砕方
法の一実施例の実施状況を示す縦断面図、第２図はその
縦断側面図、第３＾、３Ｂ図乃至第５＾、５Ｂ図は本発
明における三角形断面以外の多角形断面喫と三角形断面
の梗とを対比した断面図で、第３Ａ、 ４Ａ、 ５＾図
は本発明の模を、第３Ｂ、４Ｂ、 ５Ｂ図は三角形断面
の模を示す、第６図は本発明をトンネルの掘削に通用し
た実施例の実施状況を示す斜視回、第７図及び第８国益
に第９図は夫々従来方法の実施状況を示す縦断側面図で
ある。
（１）・岩盤 （２）−掘削孔（３）−中空
部 （４）・−柔剛性楔（５）−柔剛性チュー
ブ （７）−高剛性載荷板代理人 弁理士 岡 本 重
文
外２名
＃４３八閃
！Ａ３５囚
尾７色
兜８名Fig. 1 is a longitudinal cross-sectional view showing the implementation status of one embodiment of the rock or concrete crushing method according to the present invention, Fig. 2 is a longitudinal cross-sectional side view thereof, and Figs. 3^, 3B to 5^, 5B are These are cross-sectional views comparing a polygonal cross-section other than a triangular cross-section and a triangular cross-section in the present invention. Figure 6 is a perspective view showing the implementation status of an embodiment in which the present invention was applied to tunnel excavation, Figures 7 and 8 are national interest and Figure 9 are longitudinal sectional side views showing implementation status of the conventional method, respectively. It is. (1) - Rock mass (2) - Drill hole (3) - Hollow part (4) - Soft-rigid wedge (5) - Soft-rigid tube (7) - High-rigidity loading plate agent Patent attorney Shige Okamoto Extra text 2 Name #43 Eight Flashes! A35 prison tail 7 color helmet 8 people
Claims (1)
する三角形以外の多角形状断面の柔剛性楔を嵌入すると
ともに、同柔剛性楔の外周面と前記掘削孔の内周面との
間に高剛性載荷板を介装し、次いで前記柔剛性楔の中空
部内に圧力流体を封入して同中空部にかかる内圧によっ
て前記柔剛性楔を変形せしめ、前記高剛性載荷板を介し
て岩盤またはコンクリートの掘削孔内面に圧力を伝達す
ることを特徴とする岩盤またはコンクリートの破砕方法
。A flexible and rigid wedge with a polygonal cross section other than a triangle having a hollow portion is inserted into an excavated hole in bedrock or concrete, and a highly rigid wedge is inserted between the outer circumferential surface of the flexible and rigid wedge and the inner circumferential surface of the excavated hole. A loading plate is inserted, and then a pressure fluid is sealed in the hollow part of the flexible and rigid wedge, and the flexible and rigid wedge is deformed by the internal pressure applied to the hollow part, and rock or concrete is excavated through the highly rigid loading plate. A rock or concrete crushing method characterized by transmitting pressure to the inner surface of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266183A JP2579199B2 (en) | 1988-10-24 | 1988-10-24 | How to break rock or concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63266183A JP2579199B2 (en) | 1988-10-24 | 1988-10-24 | How to break rock or concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02115490A true JPH02115490A (en) | 1990-04-27 |
| JP2579199B2 JP2579199B2 (en) | 1997-02-05 |
Family
ID=17427413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63266183A Expired - Lifetime JP2579199B2 (en) | 1988-10-24 | 1988-10-24 | How to break rock or concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2579199B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100460753B1 (en) * | 2002-09-11 | 2004-12-08 | 주식회사 코리아카코 | Blasting dissolution method of the infrastructure which uses a hydraulic pressure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61169600A (en) * | 1985-01-23 | 1986-07-31 | 株式会社大林組 | Crusher for base rock, etc. |
| JPS63164946U (en) * | 1987-04-17 | 1988-10-27 |
-
1988
- 1988-10-24 JP JP63266183A patent/JP2579199B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61169600A (en) * | 1985-01-23 | 1986-07-31 | 株式会社大林組 | Crusher for base rock, etc. |
| JPS63164946U (en) * | 1987-04-17 | 1988-10-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100460753B1 (en) * | 2002-09-11 | 2004-12-08 | 주식회사 코리아카코 | Blasting dissolution method of the infrastructure which uses a hydraulic pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2579199B2 (en) | 1997-02-05 |
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