JP7309121B2 - 掘削装置 - Google Patents

掘削装置 Download PDF

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Publication number
JP7309121B2
JP7309121B2 JP2022509237A JP2022509237A JP7309121B2 JP 7309121 B2 JP7309121 B2 JP 7309121B2 JP 2022509237 A JP2022509237 A JP 2022509237A JP 2022509237 A JP2022509237 A JP 2022509237A JP 7309121 B2 JP7309121 B2 JP 7309121B2
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Japan
Prior art keywords
excavation
rod
casing
excavating
outer shape
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Japanese (ja)
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JPWO2021192386A5 (ja
JPWO2021192386A1 (https=
Inventor
肇 櫻田
秀敏 森本
圭三 四宮
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JDC Corp
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JDC Corp
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
JP2022509237A 2020-03-24 2020-10-28 掘削装置 Active JP7309121B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202062993747P 2020-03-24 2020-03-24
US62/993,747 2020-03-24
PCT/JP2020/040497 WO2021192386A1 (ja) 2020-03-24 2020-10-28 掘削装置並びに掘削方法

Publications (3)

Publication Number Publication Date
JPWO2021192386A1 JPWO2021192386A1 (https=) 2021-09-30
JPWO2021192386A5 JPWO2021192386A5 (ja) 2022-08-02
JP7309121B2 true JP7309121B2 (ja) 2023-07-18

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ID=77891074

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JP2022509237A Active JP7309121B2 (ja) 2020-03-24 2020-10-28 掘削装置

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JP (1) JP7309121B2 (https=)
WO (1) WO2021192386A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007284972A (ja) 2006-04-14 2007-11-01 Higuchi Gikou:Kk 削孔装置
JP2008038444A (ja) 2006-08-04 2008-02-21 Mitsubishi Materials Corp 掘削工具
JP2011153411A (ja) 2010-01-26 2011-08-11 Ito Yosetsu Kogyo Kk 拡張掘削ビットおよびそれを用いた掘削方法
JP2014218817A (ja) 2013-05-08 2014-11-20 日本ベース株式会社 アースオーガー及び地中障害物撤去工法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923109Y2 (ja) * 1980-06-05 1984-07-10 大成建設株式会社 ア−スドリルの拡底装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007284972A (ja) 2006-04-14 2007-11-01 Higuchi Gikou:Kk 削孔装置
JP2008038444A (ja) 2006-08-04 2008-02-21 Mitsubishi Materials Corp 掘削工具
JP2011153411A (ja) 2010-01-26 2011-08-11 Ito Yosetsu Kogyo Kk 拡張掘削ビットおよびそれを用いた掘削方法
JP2014218817A (ja) 2013-05-08 2014-11-20 日本ベース株式会社 アースオーガー及び地中障害物撤去工法

Also Published As

Publication number Publication date
WO2021192386A1 (ja) 2021-09-30
JPWO2021192386A1 (https=) 2021-09-30

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