GB1416624A - Earth boring equipment and a method of boring holes in earth - Google Patents

Earth boring equipment and a method of boring holes in earth

Info

Publication number
GB1416624A
GB1416624A GB698373A GB698373A GB1416624A GB 1416624 A GB1416624 A GB 1416624A GB 698373 A GB698373 A GB 698373A GB 698373 A GB698373 A GB 698373A GB 1416624 A GB1416624 A GB 1416624A
Authority
GB
United Kingdom
Prior art keywords
earth
boring
head
drill string
equipment
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.)
Expired
Application number
GB698373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOIL STABILISATION Ltd
Original Assignee
SOIL STABILISATION Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SOIL STABILISATION Ltd filed Critical SOIL STABILISATION Ltd
Priority to GB698373A priority Critical patent/GB1416624A/en
Publication of GB1416624A publication Critical patent/GB1416624A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

1416624 Boring earth &c SOIL STABILISATION Ltd 13 Feb 1973 6983/73 Heading E1F An under-reamer has pivotally-connected arms 16, 17 connected to a foot 11 for abutment with the lower end of a bore hole and a head 2 for attachment to a drill string (not shown). The head and foot are moved relatively towards each other by the application of pressure on the head 2 by the drill string against the action of a compression spring 19. Cutters 22 are provided on the arms. More than two blades may be provided in each set (not shown), and a plurality of underreamers may be used suitably spaced along a drill string.
GB698373A 1973-02-13 1973-02-13 Earth boring equipment and a method of boring holes in earth Expired GB1416624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB698373A GB1416624A (en) 1973-02-13 1973-02-13 Earth boring equipment and a method of boring holes in earth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB698373A GB1416624A (en) 1973-02-13 1973-02-13 Earth boring equipment and a method of boring holes in earth

Publications (1)

Publication Number Publication Date
GB1416624A true GB1416624A (en) 1975-12-03

Family

ID=9824421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB698373A Expired GB1416624A (en) 1973-02-13 1973-02-13 Earth boring equipment and a method of boring holes in earth

Country Status (1)

Country Link
GB (1) GB1416624A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222621A (en) * 1988-07-22 1990-03-14 Cementation Piling & Found Underreamer for making piles
WO1999054586A1 (en) * 1998-04-17 1999-10-28 G & G Gas, Inc. Method and apparatus for rotary mining
GB2434387A (en) * 2006-01-23 2007-07-25 Cementation Found Skanska Ltd An earth boring tool for enlarging a portion of an underground shaft
US7770670B2 (en) 2007-08-29 2010-08-10 Gourley Larry P Apparatus for rotary mining
CN107630703A (en) * 2017-10-23 2018-01-26 中铁八局集团第二工程有限公司 Band blade telescopic tube curtain jacking drill bit
CN111456639A (en) * 2020-04-30 2020-07-28 山东建筑大学 Adjustable soil body enlarged head anchor rod drill bit and using method thereof
CN113958327A (en) * 2021-10-20 2022-01-21 中铁六局集团有限公司 Shield tunneling machine underground diaphragm wall construction device and construction method thereof
CN118089684A (en) * 2024-04-25 2024-05-28 西安拾亩玖筑建筑规划信息技术有限责任公司 Terrain surveying device for civil engineering

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222621A (en) * 1988-07-22 1990-03-14 Cementation Piling & Found Underreamer for making piles
GB2222621B (en) * 1988-07-22 1992-11-04 Cementation Piling & Found Improvements relating to piles
WO1999054586A1 (en) * 1998-04-17 1999-10-28 G & G Gas, Inc. Method and apparatus for rotary mining
US6065551A (en) * 1998-04-17 2000-05-23 G & G Gas, Inc. Method and apparatus for rotary mining
GB2434387B (en) * 2006-01-23 2010-12-08 Cementation Found Skanska Ltd Earth boring apparatus
GB2434387A (en) * 2006-01-23 2007-07-25 Cementation Found Skanska Ltd An earth boring tool for enlarging a portion of an underground shaft
US7770670B2 (en) 2007-08-29 2010-08-10 Gourley Larry P Apparatus for rotary mining
US7997356B2 (en) 2007-08-29 2011-08-16 Gourley Larry P Apparatus for rotary mining
US8381842B2 (en) 2007-08-29 2013-02-26 Larry P. Gourley Apparatus for rotary mining
CN107630703A (en) * 2017-10-23 2018-01-26 中铁八局集团第二工程有限公司 Band blade telescopic tube curtain jacking drill bit
CN111456639A (en) * 2020-04-30 2020-07-28 山东建筑大学 Adjustable soil body enlarged head anchor rod drill bit and using method thereof
CN111456639B (en) * 2020-04-30 2024-06-04 山东建筑大学 Adjustable soil body expansion head anchor rod drill bit and use method thereof
CN113958327A (en) * 2021-10-20 2022-01-21 中铁六局集团有限公司 Shield tunneling machine underground diaphragm wall construction device and construction method thereof
CN113958327B (en) * 2021-10-20 2024-03-29 中铁六局集团有限公司 Construction device and construction method for shield tunneling machine underground diaphragm wall
CN118089684A (en) * 2024-04-25 2024-05-28 西安拾亩玖筑建筑规划信息技术有限责任公司 Terrain surveying device for civil engineering

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee