EP0753096A4 - Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole - Google Patents

Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole

Info

Publication number
EP0753096A4
EP0753096A4 EP94923866A EP94923866A EP0753096A4 EP 0753096 A4 EP0753096 A4 EP 0753096A4 EP 94923866 A EP94923866 A EP 94923866A EP 94923866 A EP94923866 A EP 94923866A EP 0753096 A4 EP0753096 A4 EP 0753096A4
Authority
EP
European Patent Office
Prior art keywords
pressurization
drill hole
hard rock
controlled fragmentation
fragmentation
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.)
Withdrawn
Application number
EP94923866A
Other languages
German (de)
French (fr)
Other versions
EP0753096A1 (en
Inventor
John D Watson
Chapman Young Iii
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.)
RockTek Ltd
Original Assignee
Sunburst Excavation Inc
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 Sunburst Excavation Inc filed Critical Sunburst Excavation Inc
Publication of EP0753096A1 publication Critical patent/EP0753096A1/en
Publication of EP0753096A4 publication Critical patent/EP0753096A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/16—Other methods or devices for dislodging with or without loading by fire-setting or by similar methods based on a heat effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/22—Methods for holding or positioning for blasting cartridges or tamping cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques
    • F42D3/04—Particular applications of blasting techniques for rock blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
EP94923866A 1994-04-14 1994-04-14 Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole Withdrawn EP0753096A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1994/004135 WO1995028551A1 (en) 1994-04-14 1994-04-14 Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole

Publications (2)

Publication Number Publication Date
EP0753096A1 EP0753096A1 (en) 1997-01-15
EP0753096A4 true EP0753096A4 (en) 1999-08-04

Family

ID=22242463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94923866A Withdrawn EP0753096A4 (en) 1994-04-14 1994-04-14 Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole

Country Status (6)

Country Link
EP (1) EP0753096A4 (en)
JP (1) JPH10500745A (en)
KR (1) KR100319974B1 (en)
AU (1) AU694132C (en)
CA (1) CA2187750C (en)
WO (1) WO1995028551A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1072353C (en) 1995-08-04 2001-10-03 罗克明控股有限公司 Method and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole
CN1072302C (en) * 1995-08-07 2001-10-03 罗克明控股有限公司 Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting
AUPP021697A0 (en) 1997-11-06 1997-11-27 Rocktek Limited Radio detonation system
CA2360771A1 (en) * 1998-12-14 2000-06-22 Rocktek Limited Method and apparatus for charging a hole
US6332401B1 (en) 1999-03-11 2001-12-25 Rocktek Limited Method and apparatus for pressure wave suppression in small-charge blasting
AU739462B2 (en) * 1999-03-11 2001-10-11 Rockmin Pty Ltd Small charge blasting system
US6339992B1 (en) 1999-03-11 2002-01-22 Rocktek Limited Small charge blasting apparatus including device for sealing pressurized fluids in holes
US6347837B1 (en) 1999-03-11 2002-02-19 Becktek Limited Slide assembly having retractable gas-generator apparatus
EA200101029A1 (en) * 1999-03-31 2002-04-25 Роктек Лтд. CARTRIDGE AND CHARGING DEVICE CONTAINING PATRON
US6679175B2 (en) 2001-07-19 2004-01-20 Rocktek Limited Cartridge and method for small charge breaking
AU2002360867B2 (en) * 2002-01-03 2007-02-15 Nxco International Limited Activated stemming device
EP1463918B1 (en) * 2002-01-03 2006-11-15 Nxco International Limited Method of and apparatus for breaking rock
FI120418B (en) * 2007-12-27 2009-10-15 Sandvik Mining & Constr Oy Method and equipment for low-input mining
JP5331567B2 (en) * 2009-05-11 2013-10-30 日立造船株式会社 Destruction method
RU2442957C2 (en) * 2010-04-01 2012-02-20 Открытое акционерное общество "Приаргунское производственное горно-химическое объединение " (ОАО "ППГХО") Method for obtaining a preset crushing ratio of fissured mountain mass and the required coefficient of heading advance per round to shot holes length ratio
FR2974141B1 (en) * 2011-04-14 2013-05-03 Irsn NON-DESTRUCTIVE DRILLING METHOD AND DEVICE
WO2014030138A1 (en) * 2012-08-22 2014-02-27 Non-Detonating Solutions (Pty) Limited A cartridge
CN115950308A (en) * 2023-02-15 2023-04-11 广州地铁集团有限公司 Air energy expansion rock fracturing system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960082A (en) * 1974-01-29 1976-06-01 Fedor Ignatievich Sloevsky Down-the-hole device for breaking rock, concrete and reinforced concrete by pulsewize high liquid pressure
US4829900A (en) * 1986-09-15 1989-05-16 Boutade Worldwide Investments Nv Mat for use with rock breaking tool
US5098163A (en) * 1990-08-09 1992-03-24 Sunburst Recovery, Inc. Controlled fracture method and apparatus for breaking hard compact rock and concrete materials
US5308149A (en) * 1992-06-05 1994-05-03 Sunburst Excavation, Inc. Non-explosive drill hole pressurization method and apparatus for controlled fragmentation of hard compact rock and concrete

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9528551A1 *

Also Published As

Publication number Publication date
CA2187750C (en) 2006-06-27
WO1995028551A1 (en) 1995-10-26
CA2187750A1 (en) 1995-10-26
EP0753096A1 (en) 1997-01-15
AU7393394A (en) 1995-11-10
JPH10500745A (en) 1998-01-20
AU694132B2 (en) 1998-07-16
KR100319974B1 (en) 2002-04-22
AU694132C (en) 2003-07-10

Similar Documents

Publication Publication Date Title
EP0753096A4 (en) Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole
GB2284624B (en) A bottom hole drilling assembly
EG21606A (en) Drill string tool
ZA966643B (en) Method and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole.
GB2227509B (en) A combination drill bit
AU7605991A (en) Rock bit for a down-the-hole drill
GB9515593D0 (en) A roll-forged drill bit
EP0347602A3 (en) Rock drill bit rock drill bit
GB9820333D0 (en) Drill string telemetry
GB2270490B (en) Drilling device for a rock drill
GB9611667D0 (en) Drilling a wellbore
HUP0100411A3 (en) Rock drilling tool
EP0643194A3 (en) Asymmetrical PDC cutter for a drilling bit.
ZA961951B (en) Rock drill bit
AU120220S (en) Insert for rock drilling bits
GB2290323B (en) Rock bit
ZA985216B (en) A drill bit
ZA904380B (en) Rock drilling bit
GB2323613B (en) Rolling-cutter earth-boring bit having predominantly super-hard cutting elements
EP0339412A3 (en) Rock drill
AU3692993A (en) A drill section of a drilling tool
AU8610798A (en) Controlled fragmentation of hard rock by pressurization of the bottom of a drill hole
GB2263489B (en) A drill bit
AU120221S (en) Insert for rock drilling bits
GB9501446D0 (en) Rock drill

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961114

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES FR GB IT LI SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROCKTEK LIMITED

A4 Supplementary search report drawn up and despatched

Effective date: 19990617

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): AT CH DE ES FR GB IT LI SE

RIC1 Information provided on ipc code assigned before grant

Free format text: 6E 21C 37/14 A, 6F 42D 1/22 B, 6F 42D 3/04 B, 6E 21C 37/12 B, 6E 21C 37/16 B

17Q First examination report despatched

Effective date: 20020214

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

R18D Application deemed to be withdrawn (corrected)

Effective date: 20040511

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1011398

Country of ref document: HK