DE60007211D1 - twist drill - Google Patents

twist drill

Info

Publication number
DE60007211D1
DE60007211D1 DE60007211T DE60007211T DE60007211D1 DE 60007211 D1 DE60007211 D1 DE 60007211D1 DE 60007211 T DE60007211 T DE 60007211T DE 60007211 T DE60007211 T DE 60007211T DE 60007211 D1 DE60007211 D1 DE 60007211D1
Authority
DE
Germany
Prior art keywords
shaft
helical blade
ground
hardening agent
hole
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 - Lifetime
Application number
DE60007211T
Other languages
German (de)
Inventor
Kazuyuki Matsuzawa
Masakatsu Miyajima
Masanobu Sanai
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.)
SHOWA KENSHO CO
Original Assignee
SHOWA KENSHO CO
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 SHOWA KENSHO CO filed Critical SHOWA KENSHO CO
Application granted granted Critical
Publication of DE60007211D1 publication Critical patent/DE60007211D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Drilling Tools (AREA)

Abstract

A method of constructing high-friction piles in the ground is provided, wherein the amount of excavated soil from prebored holes can be reduced, and the total number of piles which must be set for a pile foundation can be reduced. An auger is utilized which comprises an elongated shaft (1) and a helical blade (2, 3) extending around the shaft (1) and projecting radially from the periphery of the shaft (1). The shaft comprises a first helical blade (2) along the length of the main portion thereof with an inclination angle in the positive direction of rotation and at least one second helical blade (3) only along the top portion of the shaft (1) with an inclination angle in the opposite or reverse direction as that of the first helical blade (2). When drilling such an auger into the ground, the agitated soil is thrust sideways into the ground so that a plastic zone (A) is formed around the hole up to a prescribed range. Next, a hardening agent (4) is poured into the hole, and then a support or reinforcement material (5) is inserted into the hardening agent (4) before the hardening agent (4) hardens completely. The support material (5) and the plastic zone (A) surrounding the hole form together a monolithic pile. <IMAGE>
DE60007211T 1999-03-30 2000-03-28 twist drill Expired - Lifetime DE60007211D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08895599A JP3163420B2 (en) 1999-03-30 1999-03-30 Construction method of pile with high frictional force

Publications (1)

Publication Number Publication Date
DE60007211D1 true DE60007211D1 (en) 2004-01-29

Family

ID=13957289

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60007211T Expired - Lifetime DE60007211D1 (en) 1999-03-30 2000-03-28 twist drill

Country Status (4)

Country Link
EP (1) EP1041240B1 (en)
JP (1) JP3163420B2 (en)
AT (1) ATE256816T1 (en)
DE (1) DE60007211D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010079163A (en) * 2001-06-19 2001-08-22 임철웅 Construction method of a composite ground using controlled modulus columns for the improvement of compressible soils
DE502008002811D1 (en) 2008-06-13 2011-04-21 Bauer Maschinen Gmbh Drilling device and drilling method
CN102002942A (en) * 2010-11-05 2011-04-06 北京建院科技发展有限公司 Hollow drilling pile and piling construction process for steel tube-cement soil composite pile
CN105401893B (en) * 2014-09-12 2018-08-17 王永龙 Release guard aperture drilling rod is crept into for cherry coal rock
CN105735907A (en) * 2016-03-08 2016-07-06 河南理工大学 Multi-stage jet flow drill pipe
JP2018135683A (en) * 2017-02-21 2018-08-30 株式会社三誠 Ground improvement device and ground improvement method
JP7058432B2 (en) * 2017-11-14 2022-04-22 株式会社冨田 Excavation method
CN110206029A (en) * 2019-06-18 2019-09-06 蒿振侠 Drill bit mechanism is stirred in turn pair to connecting shaft up and down
CN110878553B (en) * 2019-12-05 2021-03-23 广东泓森建设有限公司 Construction method of continuous wall crossing deep-buried large municipal pipeline

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391544A (en) * 1966-12-05 1968-07-09 Intrusion Prepakt Inc Means and method of forming concrete piles
GB2137678B (en) * 1983-04-08 1986-11-26 Matsuzawa Kiko Kabushiki Kaish Method and apparatus for pile construction
BE903965A (en) * 1985-12-31 1986-04-16 Coelus Gaspar Jozef DEVICE AND METHOD FOR CARRYING DRILLING PILES.
CA1266043A (en) * 1989-01-04 1990-02-20 Ross W. Bracewell Auger drilling system
BE1007558A5 (en) * 1993-10-28 1995-08-01 Hareninvest Ground displacement chuck for forming of posts in the ground.

Also Published As

Publication number Publication date
JP3163420B2 (en) 2001-05-08
EP1041240A3 (en) 2002-01-02
EP1041240B1 (en) 2003-12-17
JP2000282461A (en) 2000-10-10
ATE256816T1 (en) 2004-01-15
EP1041240A2 (en) 2000-10-04

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Legal Events

Date Code Title Description
8332 No legal effect for de