JP4634099B2 - 岩盤穿孔用ビット - Google Patents
岩盤穿孔用ビット Download PDFInfo
- Publication number
- JP4634099B2 JP4634099B2 JP2004252515A JP2004252515A JP4634099B2 JP 4634099 B2 JP4634099 B2 JP 4634099B2 JP 2004252515 A JP2004252515 A JP 2004252515A JP 2004252515 A JP2004252515 A JP 2004252515A JP 4634099 B2 JP4634099 B2 JP 4634099B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- bit
- rock
- holes
- axis
- 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.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Description
12 溝
16,18 第1の孔
20 第2の孔
22 ビット
24,26 ビットの本体及びチップ
28 ビットの本体の表面
32 先行ロッド
Claims (3)
- 岩盤の掘削に先立ち該岩盤に設けられる溝を形成すべく前記岩盤に穿たれた孔を拡径するために用いられる回転駆動されるビットであって、
前記孔内に部分的に受け入れられかつその周壁から調芯作用を受けるように先細の円錐面又は半球面に形成された表面を有する本体と、
該本体の表面の全域に取り付けられた複数のチップとを備える、ビット。 - さらに、前記本体の表面から伸びる先行ロッドを含む、請求項1に記載のビット。
- 前記先行ロッドは前記孔の直径よりわずかに小さい直径を有する、請求項2に記載のビット。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004252515A JP4634099B2 (ja) | 2004-08-31 | 2004-08-31 | 岩盤穿孔用ビット |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004252515A JP4634099B2 (ja) | 2004-08-31 | 2004-08-31 | 岩盤穿孔用ビット |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006070489A JP2006070489A (ja) | 2006-03-16 |
JP4634099B2 true JP4634099B2 (ja) | 2011-02-16 |
Family
ID=36151399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004252515A Active JP4634099B2 (ja) | 2004-08-31 | 2004-08-31 | 岩盤穿孔用ビット |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4634099B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101030790B1 (ko) * | 2010-10-15 | 2011-04-27 | 대지종건(주) | 암반 또는 콘크리트 선형 굴진장치 및 이를 이용한 암반 또는 콘크리트 선형 굴진방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01280195A (ja) * | 1988-04-30 | 1989-11-10 | Nippon Steel Corp | 穿孔用ビット |
JPH01322087A (ja) * | 1988-06-22 | 1989-12-27 | Dowa Mining Co Ltd | 岩盤へのスリツト堀削方法 |
JPH02164996A (ja) * | 1988-12-16 | 1990-06-25 | Mitsui Constr Co Ltd | 硬質岩盤の掘削方法 |
JPH03290588A (ja) * | 1990-04-06 | 1991-12-20 | Nissan Kensetsu Kk | 岩盤削溝工法とこの工法に使用する主ダウンザホールドリルのガイド棒 |
-
2004
- 2004-08-31 JP JP2004252515A patent/JP4634099B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01280195A (ja) * | 1988-04-30 | 1989-11-10 | Nippon Steel Corp | 穿孔用ビット |
JPH01322087A (ja) * | 1988-06-22 | 1989-12-27 | Dowa Mining Co Ltd | 岩盤へのスリツト堀削方法 |
JPH02164996A (ja) * | 1988-12-16 | 1990-06-25 | Mitsui Constr Co Ltd | 硬質岩盤の掘削方法 |
JPH03290588A (ja) * | 1990-04-06 | 1991-12-20 | Nissan Kensetsu Kk | 岩盤削溝工法とこの工法に使用する主ダウンザホールドリルのガイド棒 |
Also Published As
Publication number | Publication date |
---|---|
JP2006070489A (ja) | 2006-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2600094A1 (en) | Perforating gun assembly and method for enhancing perforation depth | |
JP6951303B2 (ja) | プレスプリッティングによる発破掘削工法 | |
JP4634099B2 (ja) | 岩盤穿孔用ビット | |
JP4634098B2 (ja) | 岩盤への溝の形成方法 | |
JP4505289B2 (ja) | 岩盤への溝の形成方法 | |
KR101677278B1 (ko) | 곡선 궤도로 굴착이 가능한 확공기 및, 이를 이용한 확공 방법 | |
JP3816350B2 (ja) | 溝の穿孔方法及び溝穿孔機 | |
JP3119979B2 (ja) | 地下空間形成発破工法 | |
WO1991016524A1 (en) | Method of excavating tunnel | |
KR100852960B1 (ko) | 수퍼홀 피라미드형 노치균열 컷을 이용한 터널의 심발공부영역 형성방법 | |
JP4253801B2 (ja) | トンネル構築工法 | |
KR102268982B1 (ko) | 3자유면 폭약사용 미진동 굴착공법 | |
JP3059621B2 (ja) | 岩盤等の爆破方法 | |
KR100599982B1 (ko) | 터널 발파 공법 | |
JP3486103B2 (ja) | 岩盤等の爆破方法 | |
JP6372732B1 (ja) | 掘削装置 | |
JP2001021299A (ja) | 発破掘削工法 | |
JP4780473B2 (ja) | トンネル構築方法 | |
JPH09203290A (ja) | 横断スリット掘削工法および掘削具 | |
CN114165237B (zh) | 护壁对压爆破方法 | |
KR102566443B1 (ko) | 복수의 시추공으로 이루어진 단위 할렬공을 이용한 3자유면 무진동 암파쇄 굴착공법 | |
KR102442233B1 (ko) | 암반 취약화가 선행된 기계굴착을 포함하는 터널굴착방법 | |
JPWO2018030464A1 (ja) | 掘削工具 | |
JPH02136492A (ja) | トンネルの掘削方法 | |
JP3203966B2 (ja) | 掘削工具 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070406 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090327 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100420 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100618 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101116 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101118 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4634099 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131126 Year of fee payment: 3 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |