WO2012067454A3 - Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area in the ground, and a pile and tension member construction method for building work using the same - Google Patents

Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area in the ground, and a pile and tension member construction method for building work using the same Download PDF

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Publication number
WO2012067454A3
WO2012067454A3 PCT/KR2011/008814 KR2011008814W WO2012067454A3 WO 2012067454 A3 WO2012067454 A3 WO 2012067454A3 KR 2011008814 W KR2011008814 W KR 2011008814W WO 2012067454 A3 WO2012067454 A3 WO 2012067454A3
Authority
WO
WIPO (PCT)
Prior art keywords
ground
borehole
pile
maintaining
diameter
Prior art date
Application number
PCT/KR2011/008814
Other languages
French (fr)
Korean (ko)
Other versions
WO2012067454A2 (en
Inventor
임성대
현재호
조형권
Original Assignee
주식회사 삼일이엔씨
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 주식회사 삼일이엔씨 filed Critical 주식회사 삼일이엔씨
Publication of WO2012067454A2 publication Critical patent/WO2012067454A2/en
Publication of WO2012067454A3 publication Critical patent/WO2012067454A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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)
  • 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)
  • Piles And Underground Anchors (AREA)

Abstract

The present invention relates to a borehole-diameter-expanding drill which is used in order to expand the hole wall in part of a borehole shaft drilled in the ground for the purpose of building work, wherein there is a sliding blade assembly which comprises sliding blades capable of mutual folding, hinged to the shaft part of a rotor at the upper end thereof, and each of the sliding blades has secured to the upper surface thereof cutting bits for hole-wall cutting, and there is a movable member for controlling the upwards unfolding and the downwards folding of the sliding blades, and thus it is possible to subject part of the borehole shaft to reaming in the ground while maintaining the shape of the reamed area in the ground unaltered, and it is possible to form the securing and fixing part of an anchor or tension pile or else to form the spread foundation part at the front end of a compression pile by casting concrete into the reamed area.
PCT/KR2011/008814 2010-11-18 2011-11-17 Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area in the ground, and a pile and tension member construction method for building work using the same WO2012067454A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100115026A KR101077960B1 (en) 2010-11-18 2010-11-18 Hole enlargement drills for maintaining drilled hole shape underground, and construction method of piles and tention members using them
KR10-2010-0115026 2010-11-18

Publications (2)

Publication Number Publication Date
WO2012067454A2 WO2012067454A2 (en) 2012-05-24
WO2012067454A3 true WO2012067454A3 (en) 2012-07-26

Family

ID=45033573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/008814 WO2012067454A2 (en) 2010-11-18 2011-11-17 Borehole-diameter-expanding drill having the function of maintaining the shape of the reamed area in the ground, and a pile and tension member construction method for building work using the same

Country Status (2)

Country Link
KR (1) KR101077960B1 (en)
WO (1) WO2012067454A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101493439B1 (en) * 2011-12-23 2015-02-16 주식회사고려이엔시 Drilling method
KR20140089680A (en) * 2013-01-04 2014-07-16 (주)삼일이엔씨 Piles for self-enlargement and construction method thereof
KR101582068B1 (en) * 2015-03-26 2015-12-31 김인철 Ground anchor construction method for anchoring area extended improvement using extended excavation agitator
KR101756937B1 (en) 2015-09-17 2017-07-26 이엑스티 주식회사 The pile foundation construction method that can build bulb of various type
KR101756933B1 (en) 2015-09-17 2017-07-26 이엑스티 주식회사 The pile foundation construction method that can build bulb of various type
KR101777774B1 (en) * 2016-05-26 2017-09-12 (주)대안소일텍 Ground anchor construction method for anchoring area extended improvement using extended excavation agitator
KR101931664B1 (en) * 2017-03-17 2018-12-21 주식회사 장평건설 Ground hole expanding pile device and pile assembly for expanding ground hole using the same
CN107620603B (en) * 2017-09-26 2023-09-22 中国矿业大学 Novel grouting anchor rod with steel loop bar
CN108222837A (en) * 2018-01-19 2018-06-29 中冶交通建设集团有限公司 Rotary excavating extruding expanding drilling head, the rotary drilling rig and construction method for including it
CN112895161A (en) * 2021-01-18 2021-06-04 邹华智 Special puncher of building engineering
CN113107402B (en) * 2021-05-18 2023-01-06 铁福来装备制造集团股份有限公司 Double-channel variable-diameter cave-making device
CN113481964B (en) * 2021-07-26 2022-10-14 中建二局第二建筑工程有限公司 Be applied to collapsible loess foundation reinforcement construction equipment
CN113529706A (en) * 2021-08-03 2021-10-22 深圳宏业基岩土科技股份有限公司 Anchor cable construction method for intelligently detecting hole expanding aperture
CN113417285A (en) * 2021-08-05 2021-09-21 宝业湖北建工集团有限公司 Local reaming is from anchor type soil nail for excavation supporting
CN114198025B (en) * 2021-12-09 2024-03-26 上海长凯岩土工程有限公司 Basement drainage pressure-reducing hole bottom expanding device and construction method
CN114303486A (en) * 2021-12-22 2022-04-12 中山大学 Underground slurry paving device with turnover spiral blade combination
CN114562209B (en) * 2022-02-25 2023-05-23 青岛市勘察测绘研究院 Edge reinforcement type reaming device for geotechnical engineering

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56492A (en) * 1979-08-07 1981-01-06 Hitachi Construction Machinery Rotary bit for enlarging bottom
JP2006016913A (en) * 2004-07-05 2006-01-19 Taiyo Kiso Kk Expansion head
JP2008106426A (en) * 2006-10-23 2008-05-08 Nippon Hume Corp Method for burying preboring-type precast concrete pile
KR20100078632A (en) * 2008-12-30 2010-07-08 (주)토탈지오이앤씨 Construction method of combined micro-pile with existing structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205695A (en) * 1981-06-08 1982-12-16 Takenaka Komuten Co Drilling bucket for inversion type bottom expanded pit of earth drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56492A (en) * 1979-08-07 1981-01-06 Hitachi Construction Machinery Rotary bit for enlarging bottom
JP2006016913A (en) * 2004-07-05 2006-01-19 Taiyo Kiso Kk Expansion head
JP2008106426A (en) * 2006-10-23 2008-05-08 Nippon Hume Corp Method for burying preboring-type precast concrete pile
KR20100078632A (en) * 2008-12-30 2010-07-08 (주)토탈지오이앤씨 Construction method of combined micro-pile with existing structure

Also Published As

Publication number Publication date
WO2012067454A2 (en) 2012-05-24
KR101077960B1 (en) 2011-10-28

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