JPH03136812A - Concrete cutter with two blades - Google Patents
Concrete cutter with two bladesInfo
- Publication number
- JPH03136812A JPH03136812A JP1274028A JP27402889A JPH03136812A JP H03136812 A JPH03136812 A JP H03136812A JP 1274028 A JP1274028 A JP 1274028A JP 27402889 A JP27402889 A JP 27402889A JP H03136812 A JPH03136812 A JP H03136812A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- cutter
- blades
- tip
- groove
- 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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 239000000428 dust Substances 0.000 description 11
- 230000008439 repair process Effects 0.000 description 10
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/046—Sawing in a plane parallel to the work table
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、トンネル内壁面の補修工事などに利用して便
利な２枚刃式コンクリートカッターに関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a two-blade type concrete cutter that is convenient for use in repair work of tunnel inner walls.
（従来の技術）
最近、土木、建築構造物の補修の重要性が見直されてき
ており、その施工方法も橋梁等の桁補修や建物外壁補修
などについては相当の改良がなされている。しかしなが
ら、トンネルの内壁補修に関しては、少なくとも小規模
なものについては工法が確立しておらず、各施工業者が
個々ばらばらの方法で労力と時間をかけて行っているの
が現状である。(Prior Art) Recently, the importance of civil engineering and repair of architectural structures has been reconsidered, and considerable improvements have been made to construction methods such as girder repair of bridges and building exterior wall repair. However, when it comes to repairing the inner walls of tunnels, there is no established method for repairing them, at least for small-scale repairs, and the current situation is that each contractor uses their own methods and spends a lot of time and effort on repairing them.
トンネルの劣化の態様の典型的なものとして、巻厚コン
クリートが上面や側面で剥落するものがある。第３図（
Ａ）は、トンネル巻厚コンクリート３１が剥落して頂部
に欠は穴３２が形成された状態を例示している。この欠
は穴の補修工法として、そこにポリマーモルタルを充填
するものが考えられる。この場合、欠は穴の内壁面の両
側にほぼ水平な孔を穿ち（第３図（Ｂ）） 、この孔に
既存の伸縮自在な鉄筋３５を渡したのちにポリマーモル
タル３６を充填する（同図（Ｃ））ことにより、ポリマ
ーモルタルを充填しただけの場合に比べてこの充填物の
剥落を有効に防止できる。A typical example of tunnel deterioration is that the thick concrete rolls peel off on the top and side surfaces. Figure 3 (
A) illustrates a state in which the tunnel thickness concrete 31 has fallen off and a hole 32 has been formed at the top. A possible repair method for this hole is to fill it with polymer mortar. In this case, almost horizontal holes are drilled on both sides of the inner wall of the hole (Fig. 3 (B)), and after passing the existing expandable reinforcing bars 35 into these holes, polymer mortar 36 is filled (see Fig. 3 (B)). Figure (C)) allows the filling to be more effectively prevented from falling off than in the case where only polymer mortar is filled.
（発明が解決しようとする課題）
上述したトンネル巻厚コンクリートの欠は大の補修工法
では、欠は穴の径が小さくなるにつれてその内部に鉄筋
を渡す水平な穿孔を形成する作業が困難になる。すなわ
ち、欠は穴の径が小さくなるにつれてタガネと金槌を手
操作するための空間がなくなり、また電動ドリルの先端
を欠は穴内壁面に水平にあてがうための空間もなくなる
。通常、このようなトンネル内の補修工事は、列車の通
過の合間を縫って迅速に行う必要があり、特に補修個所
が頂部の場合には足場の組立ても必要となるため一層の
迅速性が必要になる。(Problems to be Solved by the Invention) In the above-mentioned repair method for repairing holes in thick tunnel concrete, as the diameter of the hole becomes smaller, it becomes difficult to form a horizontal hole for passing reinforcing bars inside the hole. . That is, as the diameter of the hole becomes smaller, there is no space for manually operating the chisel and hammer, and there is also no space to apply the tip of the electric drill horizontally to the inner wall surface of the hole. Normally, repair work in tunnels like this needs to be carried out quickly, in between passing trains, and especially when the repair site is at the top, it is necessary to assemble scaffolding, so even more speed is required. become.
（課題を解決するための手段）
上記トンネル巻厚コンクリートの補修工法に際し鉄筋を
渡すための水平な穿孔の形成は、本発明の２枚刃式コン
クリート・カッターを使用することにより迅速・確実に
行える。(Means for Solving the Problem) Formation of horizontal perforations for passing reinforcing bars in the above-mentioned repair method for thick tunnel concrete can be performed quickly and reliably by using the two-blade type concrete cutter of the present invention. .
この２枚刃式コンクリート・カッターは、携帯可能な長
尺体の先端部分に交換可能なスペーサーを介在させつつ
互いに平行に保持される２枚のカンタ−ブレードと、こ
れら２枚のカンタ−ブレードをフレキシブル・シャフト
を介して回転させる携帯可能な動力装置とを備えている
。This two-blade concrete cutter has two canter blades that are held parallel to each other with a replaceable spacer interposed at the tip of a portable elongated body. It is equipped with a portable power unit that rotates through a flexible shaft.
以下、本発明の作用を実施例と共に詳細に説明する。Hereinafter, the operation of the present invention will be explained in detail together with examples.
（実施例）
第１図は、本発明の一実施例の２枚刃式コンクリート・
カッターの先端部分の構成を示す斜視図であり、ｌａ、
ｌｂはカッターブレード、ＩＣはスペーサー、２はスピ
ンドル、３はフレキシブル・シャフト、４は手持ちパイ
プ、５は集塵カバー６は吸塵ダクト、７はフレキシブル
吸塵ホースである。(Example) Figure 1 shows a two-blade type concrete machine according to an example of the present invention.
FIG.
lb is a cutter blade, IC is a spacer, 2 is a spindle, 3 is a flexible shaft, 4 is a hand-held pipe, 5 is a dust collection cover 6 is a dust suction duct, and 7 is a flexible dust suction hose.
手持ちパイプ４は軽金属やカーボンなどの軽量材を素材
としており、その先端部分には２枚のカッターブレード
ｌａとｔｂが交換可能なスペーサーｌｃを介在させつつ
互いに平行に保持されている。これらのカッターブレー
ド１ａと１ｂとしては、コンクリートやアスファルトの
道路の切断用として三京ダイヤモンド工業株式会社から
市販されているカッティングブレードなどが使用される
。The hand-held pipe 4 is made of a lightweight material such as light metal or carbon, and at its tip, two cutter blades la and tb are held parallel to each other with a replaceable spacer lc interposed therebetween. As these cutter blades 1a and 1b, cutting blades commercially available from Sankyo Diamond Industries Co., Ltd. for cutting concrete and asphalt roads are used.
これらのカッターブレード１ａと１ｂは、スピンドル２
とフレキシブル・シャフト３とを介して背負いバンドな
どを有する携帯可能な動力装置（図示せず）に接続され
、回転せしめられる。These cutter blades 1a and 1b are attached to the spindle 2
It is connected to a portable power device (not shown) having a shoulder strap or the like via the flexible shaft 3 and rotated.
カッターブレードによる切断作業時に発生するコンクリ
ートの粉塵は、集塵カバー５に衝突して手持ちパイプ４
の内部に吸い込まれ、吸塵ダクト６とフレキシブル吸塵
ホース７とを通って市販の吸塵ブロワ（図示せず）に吸
引され、図示しない吸塵バッグ内に収容される。Concrete dust generated during cutting work with the cutter blade collides with the dust collection cover 5 and the hand-held pipe 4
It passes through the dust suction duct 6 and the flexible dust suction hose 7, is sucked into a commercially available dust blower (not shown), and is housed in a dust suction bag (not shown).
第１図の２枚刃式コンクリート・カッターを使用してト
ンネル巻厚コンクリートの欠は穴内に鉄筋を渡すための
水平な横円弧溝を形成する方法を、第２図の断面図によ
って説明する。A method of forming horizontal arcuate grooves for passing reinforcing bars into gaps in tunnel concrete by using the two-blade concrete cutter shown in FIG. 1 will be explained with reference to the sectional view shown in FIG. 2.
まず、２枚刃式コンクリート・カッターの先端部分１０
を欠は穴の内壁面２１と２２の間に挿入しく第２図（Ａ
）） 、一方の内壁面２１に押し当てつつ２個の平行な
溝２３．２４を形成しく同図（Ｂ）） 、これを他方の
内壁面２２に対しても繰り返すことにより、両壁面に互
いに対向する平行な溝の対２５．２６を形成する（同図
（Ｃ））。First, the tip part 10 of the two-blade concrete cutter
The missing part should be inserted between the inner wall surfaces 21 and 22 of the hole as shown in Figure 2 (A
)) While pressing against one inner wall surface 21, two parallel grooves 23 and 24 are formed (Figure (B)), and by repeating this for the other inner wall surface 22, both wall surfaces are mutually bonded. A pair of parallel grooves 25 and 26 facing each other is formed (FIG. 3(C)).
次に、溝の一方２３にバールの先端を挿入してこじるこ
とにより、溝２３と２４の間に残されたコンクリートの
層を根元部分の破壊によって除去し、横円弧溝２７を形
成する。これを溝２５と２６の対にも繰り返すことによ
り内壁面２２何にも孔２Ｂを形成する（同図（Ｄ））。Next, by inserting the tip of a crowbar into one of the grooves 23 and prying it, the layer of concrete left between the grooves 23 and 24 is removed by destroying the root portion, and a horizontal arcuate groove 27 is formed. By repeating this for the pair of grooves 25 and 26, a hole 2B is formed in the inner wall surface 22 (FIG. 2(D)).
このうように、本発明の２枚式コンクリート・カッター
の使用により、トンネル巻厚コンクリートの欠は穴内に
鉄筋を渡すための横円弧溝２７と２８とを迅速・確実に
形成できる。In this way, by using the two-piece concrete cutter of the present invention, the horizontal arcuate grooves 27 and 28 for passing reinforcing bars into holes in the tunnel thickness concrete can be quickly and reliably formed.
以上、トンネル巻厚コンクリートの欠は穴内に横円弧溝
を形成する場合について、本発明の２枚刃式コンクリー
ト・カッターの使用方法を例示した。しかしながら、本
発明の２枚刃式コンクリート・カッターの適用例はこれ
に限定されるものではなく、これと類似の他の各種の用
途に適用することができる。The method for using the two-blade concrete cutter of the present invention has been exemplified above in the case of forming a transverse arc groove in a hole in a tunnel-thick concrete. However, the application of the two-blade concrete cutter of the present invention is not limited to this, and can be applied to various other similar uses.
（発明の効果）
以上詳細に説明したように、本発明の２枚刃式コンクリ
ート・カッターは、上述のような構成であるから、トン
ネル巻厚コンクリートの欠は穴内に鉄筋保持用の横円弧
溝を迅速に形成できるなどの効果が奏される。(Effects of the Invention) As explained in detail above, the two-blade concrete cutter of the present invention has the above-described configuration, so that the cracks in the tunnel thickness concrete are replaced by horizontal arc grooves for holding reinforcing bars in the hole. Effects such as being able to form quickly can be achieved.
また、本発明の２枚刃式コンクリート・カッターは２枚
のカッターブレードを交換可能なスペーサーを介在させ
つつ互いに平行に保持する構成であるから、種々の厚み
のスペーサーを準備しておくことにより溝の間隔を簡単
に調整できるという利点もある。In addition, since the two-blade concrete cutter of the present invention has a structure in which two cutter blades are held parallel to each other with a replaceable spacer in between, by preparing spacers of various thicknesses, grooves can be cut easily. Another advantage is that the interval can be easily adjusted.
第１図は本発明の一実施例の２枚刃式コンクリート・カ
ッターの先端部分の構成を示す斜視図、第２図は第１図
の２枚刃式コンクリート、・カッターを使用してトンネ
ル巻厚コンクリートの欠は穴内に横円弧溝を形成する方
法を説明するための断面図、第３図はトンネル巻厚コン
クリートの欠は穴の補修工法を説明するための断面図で
ある。
ｌａ、ｌｂ・・・カッターブレード、ｌｃ・・・交換可
能なスペーサー、２・・・手持パイプ、３・・・フレキ
シブル・シャフト、４・・・スピンドル、５・・・集塵
カバー、６・・・吸塵ダクト、７・・・フレキシブル・
ホース。Fig. 1 is a perspective view showing the structure of the tip of a two-blade concrete cutter according to an embodiment of the present invention, and Fig. 2 is a tunnel winding using the two-blade concrete cutter of Fig. 1. A hole in thick concrete is a cross-sectional view for explaining a method of forming a horizontal arc groove in a hole, and FIG. 3 is a cross-sectional view for explaining a method for repairing a hole in tunnel-covered thick concrete. la, lb...cutter blade, lc...replaceable spacer, 2...handheld pipe, 3...flexible shaft, 4...spindle, 5...dust collection cover, 6...・Dust suction duct, 7...Flexible・
hose.
Claims (1)
介在させつつ互いに平行に保持される２枚のカッターブ
レードと、 これら２枚のカッターブレードをフレキシブル・シャフ
トを介して回転させる携帯可能な動力装置とを備えたこ
とを特徴とする２枚刃式コンクリート・カッター。[Claims] Two cutter blades held parallel to each other with a replaceable spacer interposed at the tip of a portable elongated body, and these two cutter blades connected via a flexible shaft. A two-blade concrete cutter characterized by being equipped with a portable rotating power device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274028A JPH03136812A (en) | 1989-10-20 | 1989-10-20 | Concrete cutter with two blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274028A JPH03136812A (en) | 1989-10-20 | 1989-10-20 | Concrete cutter with two blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03136812A true JPH03136812A (en) | 1991-06-11 |
Family
ID=17535956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1274028A Pending JPH03136812A (en) | 1989-10-20 | 1989-10-20 | Concrete cutter with two blades |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03136812A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632009U (en) * | 1992-10-01 | 1994-04-26 | 株式会社ケイ・アイ・ドリル | Attachment for power tools |
| EP0940237A1 (en) * | 1998-03-06 | 1999-09-08 | Quintilio Lupi | Modular system of circular saw blades for forming curved surfaces in marble, stone and the like |
| JP2005256132A (en) * | 2004-03-15 | 2005-09-22 | Nakabohtec Corrosion Protecting Co Ltd | Method for installing electrode for cathodic protection to concrete structure |
| JP2010274441A (en) * | 2009-05-26 | 2010-12-09 | Lonbic Japan Inc | Apparatus and method for slit formation |
| JP2018178630A (en) * | 2017-04-19 | 2018-11-15 | 株式会社テクト | Ceiling board cutting machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158249A (en) * | 1984-08-29 | 1986-03-25 | Hitachi Cable Ltd | Optical system for ic lead frame appearance automatic inspection device |
| JPS6165718A (en) * | 1984-09-07 | 1986-04-04 | Kusumoto Kazushige | Method of severing water pipe or the like by use of cutting saw having flexible shaft |
-
1989
- 1989-10-20 JP JP1274028A patent/JPH03136812A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6158249A (en) * | 1984-08-29 | 1986-03-25 | Hitachi Cable Ltd | Optical system for ic lead frame appearance automatic inspection device |
| JPS6165718A (en) * | 1984-09-07 | 1986-04-04 | Kusumoto Kazushige | Method of severing water pipe or the like by use of cutting saw having flexible shaft |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632009U (en) * | 1992-10-01 | 1994-04-26 | 株式会社ケイ・アイ・ドリル | Attachment for power tools |
| EP0940237A1 (en) * | 1998-03-06 | 1999-09-08 | Quintilio Lupi | Modular system of circular saw blades for forming curved surfaces in marble, stone and the like |
| WO1999044798A1 (en) * | 1998-03-06 | 1999-09-10 | Quintilio Lupi | Modular system of circular saw blades for forming curved surfaces in marble, stone and the like |
| JP2005256132A (en) * | 2004-03-15 | 2005-09-22 | Nakabohtec Corrosion Protecting Co Ltd | Method for installing electrode for cathodic protection to concrete structure |
| JP2010274441A (en) * | 2009-05-26 | 2010-12-09 | Lonbic Japan Inc | Apparatus and method for slit formation |
| JP2018178630A (en) * | 2017-04-19 | 2018-11-15 | 株式会社テクト | Ceiling board cutting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3729056A (en) | Mining and excavating apparatus | |
| JPH03136812A (en) | Concrete cutter with two blades | |
| Abudayyeh et al. | Concrete bridge demolition methods and equipment | |
| JP2015129407A (en) | Crushing method of structure | |
| CN207048677U (en) | A kind of Simple anchor rod scaffold | |
| JP3979646B2 (en) | Concrete building repair method | |
| US5390983A (en) | Roadbed profiler and method of profiling | |
| JP2008179946A (en) | Scraper for support | |
| JPH01125472A (en) | Method of crushing construction of reinforced concrete | |
| Hudgins et al. | Demolition of concrete structures | |
| CN218932874U (en) | Movable telescopic pry bar for conveniently resetting bridge deck shear bars | |
| GB2162099A (en) | A device for and method of chipping material away from a wall of a hole | |
| EP0066156A1 (en) | Method for cutting a tunnel in rock by means of a rock drilling machine | |
| US10301780B2 (en) | Surface joining system and methods | |
| CN215289528U (en) | A device for grout jointing of rubble | |
| JP2009007832A (en) | Crushing apparatus | |
| AU2003100683A4 (en) | Modified mortar cutting blade | |
| CN205764029U (en) | A kind of portable manual borer | |
| JPS6153915A (en) | Method of driving down sheathing material | |
| JP3123333B2 (en) | Drilling tools | |
| KR20060073010A (en) | A boring machine which removes a dust | |
| JPH04129681A (en) | Servo hydraulic cylinder device for civil work | |
| CN117418482A (en) | Construction technology of new and old concrete of adjacent segments of bridge | |
| SU702098A1 (en) | Method of making an antiseepage arrangement in joints of a structure | |
| GB2238979A (en) | Brickwork sawing tool |