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FR2314309A1 - Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276) - Google Patents

Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276)

Info

Publication number
FR2314309A1
FR2314309A1 FR7518095A FR7518095A FR2314309A1 FR 2314309 A1 FR2314309 A1 FR 2314309A1 FR 7518095 A FR7518095 A FR 7518095A FR 7518095 A FR7518095 A FR 7518095A FR 2314309 A1 FR2314309 A1 FR 2314309A1
Authority
FR
France
Prior art keywords
plates
core sleeve
driving head
pilot bore
web plates
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.)
Granted
Application number
FR7518095A
Other languages
French (fr)
Other versions
FR2314309B1 (en
Inventor
A D Kostylev
K B Trach
L G Rozhkov
V V Klimashko
V M Terin
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.)
Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
Original Assignee
Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
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 Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR filed Critical Institut Gornogo dela Sibirskogo Otdelenia Akademii Nauk SSSR
Priority to FR7518095A priority Critical patent/FR2314309A1/en
Publication of FR2314309A1 publication Critical patent/FR2314309A1/en
Application granted granted Critical
Publication of FR2314309B1 publication Critical patent/FR2314309B1/fr
Granted 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
    • E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices
    • 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
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)

Abstract

A pneumatic earth boring tool has a conical driving head of simple welded plate construction. It can be used to enlarge a pilot bore by compaction of soil substrate. Thrust boring may be used to install service cables under highways without trench excavation. The head has a core sleeve (5) which fits onto a hammer nose (1). Triangular web plates (4) radiate from the core sleeve to receive the outer lining plates (3). The web plates (4) may be fixed to the core sleeve (5) by continuous longitudinal welds. Each outer lining plates (3) is of truncated pyramid shape, spans between successive radial web plates (4), and may be fixed to the free-edges of the web plates by intermittent longitudinal welds. The rear of the cone may be formed by a polygonal ring plate (6).
FR7518095A 1975-06-10 1975-06-10 Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276) Granted FR2314309A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7518095A FR2314309A1 (en) 1975-06-10 1975-06-10 Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7518095A FR2314309A1 (en) 1975-06-10 1975-06-10 Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276)

Publications (2)

Publication Number Publication Date
FR2314309A1 true FR2314309A1 (en) 1977-01-07
FR2314309B1 FR2314309B1 (en) 1977-12-09

Family

ID=9156284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7518095A Granted FR2314309A1 (en) 1975-06-10 1975-06-10 Conical driving head for pneumatic thrust borer - enlarges pilot bore, has liner plates welded to radial plates from core sleeve (OE151276)

Country Status (1)

Country Link
FR (1) FR2314309A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546227A1 (en) * 1983-05-16 1984-11-23 Inst Gornogo Dela Sibirskogo O AUTOMOTIVE DRILLING DEVICE WITH PERCUSSION PARTICULARLY FOR THE INSTALLATION OF UNDERGROUND PIPELINES
EP0455949A2 (en) * 1990-05-09 1991-11-13 Tracto-Technik Paul Schmidt, Maschinenfabrik Kg Boring ram for the destructive replacement of a buried pipe
WO1992010637A2 (en) * 1990-12-12 1992-06-25 Van Dalfsen Rotar Equipment B.V. Tool for making holes in the ground
US5797705A (en) * 1990-12-12 1998-08-25 Willibald Kellner Method for manufacturing a tubular foundation in the ground
WO2004079252A1 (en) * 2003-03-05 2004-09-16 Tracto-Technik Gmbh Pipe guide adapter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546227A1 (en) * 1983-05-16 1984-11-23 Inst Gornogo Dela Sibirskogo O AUTOMOTIVE DRILLING DEVICE WITH PERCUSSION PARTICULARLY FOR THE INSTALLATION OF UNDERGROUND PIPELINES
EP0455949A2 (en) * 1990-05-09 1991-11-13 Tracto-Technik Paul Schmidt, Maschinenfabrik Kg Boring ram for the destructive replacement of a buried pipe
EP0455949A3 (en) * 1990-05-09 1992-06-24 Tracto-Technik Paul Schmidt, Maschinenfabrik Kg Boring ram for the destructive replacement of a buried pipe
WO1992010637A2 (en) * 1990-12-12 1992-06-25 Van Dalfsen Rotar Equipment B.V. Tool for making holes in the ground
WO1992010637A3 (en) * 1990-12-12 1992-12-10 Dalfsen Rotar Equipment B V Va Tool for making holes in the ground
US5797705A (en) * 1990-12-12 1998-08-25 Willibald Kellner Method for manufacturing a tubular foundation in the ground
WO2004079252A1 (en) * 2003-03-05 2004-09-16 Tracto-Technik Gmbh Pipe guide adapter
GB2414055A (en) * 2003-03-05 2005-11-16 Tracto Technik Pipe guide adapter
GB2414055B (en) * 2003-03-05 2006-06-07 Tracto Technik Pipe guide adapter
US8757931B2 (en) 2003-03-05 2014-06-24 Tt Schmidt Gmbh Pipe guide adapter

Also Published As

Publication number Publication date
FR2314309B1 (en) 1977-12-09

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Legal Events

Date Code Title Description
ST Notification of lapse