WO1998030864A3 - Blasting with shock absorbing gel - Google Patents

Blasting with shock absorbing gel Download PDF

Info

Publication number
WO1998030864A3
WO1998030864A3 PCT/US1998/000270 US9800270W WO9830864A3 WO 1998030864 A3 WO1998030864 A3 WO 1998030864A3 US 9800270 W US9800270 W US 9800270W WO 9830864 A3 WO9830864 A3 WO 9830864A3
Authority
WO
WIPO (PCT)
Prior art keywords
rock
periphery
bore holes
opening
drilling
Prior art date
Application number
PCT/US1998/000270
Other languages
French (fr)
Other versions
WO1998030864A2 (en
Inventor
Boyd J Wathen
Original Assignee
Boyd J Wathen
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
Priority claimed from US08/781,880 external-priority patent/US5810098A/en
Application filed by Boyd J Wathen filed Critical Boyd J Wathen
Priority to AU64328/98A priority Critical patent/AU6432898A/en
Priority to EP98909971A priority patent/EP0951634A4/en
Priority to BR9807284-6A priority patent/BR9807284A/en
Priority to CA002242871A priority patent/CA2242871C/en
Publication of WO1998030864A2 publication Critical patent/WO1998030864A2/en
Publication of WO1998030864A3 publication Critical patent/WO1998030864A3/en
Priority to NO993333A priority patent/NO993333L/en

Links

Classifications

    • 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
    • F42D1/24—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor characterised by the tamping material
    • F42D1/28—Tamping with gelling agents
    • 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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Rock slabs (10) or pieces (17) are broken from large rocks (10) or from rock formations (11) with reduced cracking of the broken rock slabs or pieces by drilling bore holes (13, 14, 15, 16) along the desired break lines, placing detonating cord (20) into the bore holes, filling the bore holes with a shock transmitting and moderating composition (21), and detonating the detonating cord (20). The shock transmitting and moderating composition (21) is preferably a gel with shock absorbing material (22) such as microspheres or micro gas bubbles suspended therein. Openings in rock can also be formed by drilling at least one bore hole within the desired opening and drilling a plurality of bore holes along the desired periphery of the desired opening. Explosives within the at least one bore hole within the desired opening is detonated to break rock within the opening and detonating cord (20) in the bore holes along the desired periphery of the desired opening which holes are filled with a shock transmitting and moderating composition (21) is detonated to break the rock inwardly of the desired periphery while leaving stable the rock outwardly of the periphery.
PCT/US1998/000270 1997-01-10 1998-01-09 Blasting with shock absorbing gel WO1998030864A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU64328/98A AU6432898A (en) 1997-01-10 1998-01-09 Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein
EP98909971A EP0951634A4 (en) 1997-01-10 1998-01-09 Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein
BR9807284-6A BR9807284A (en) 1997-01-10 1998-01-09 Explosive shock transmitter and moderator composition, concentrated to be mixed with water for use in the composition of an explosive shock transmitter and moderator gel, and dynamite rock process
CA002242871A CA2242871C (en) 1997-01-10 1998-01-09 Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein
NO993333A NO993333L (en) 1997-01-10 1999-07-06 Method for breaking plate and block-shaped rock material from rock formations, as well as transmission and moderating means for use therein

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/781,880 US5810098A (en) 1997-01-10 1997-01-10 Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein
US781,880 1997-01-10
US08/879,743 US5900578A (en) 1997-01-10 1997-06-20 Method of breaking slabs and explosive shock transmitting and moderating composition for use therein
US879,743 1997-06-20

Publications (2)

Publication Number Publication Date
WO1998030864A2 WO1998030864A2 (en) 1998-07-16
WO1998030864A3 true WO1998030864A3 (en) 1999-01-28

Family

ID=27119916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/000270 WO1998030864A2 (en) 1997-01-10 1998-01-09 Blasting with shock absorbing gel

Country Status (6)

Country Link
EP (1) EP0951634A4 (en)
AU (1) AU6432898A (en)
BR (1) BR9807284A (en)
CA (1) CA2242871C (en)
NO (1) NO993333L (en)
WO (1) WO1998030864A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2476994B1 (en) * 2011-01-14 2013-03-27 Anita Lohr Explosion method and assembly of multiple boreholes for filling with explosives

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759418A (en) * 1951-08-14 1956-08-21 Allied Chem & Dye Corp Frozen nitrogen tetroxide-hydrocarbon explosives
US4080902A (en) * 1976-11-04 1978-03-28 Teledyne Mccormick Selph High speed igniter device
US4198454A (en) * 1978-10-27 1980-04-15 American Air Filter Company, Inc. Lightweight composite panel
US4548660A (en) * 1983-02-24 1985-10-22 Nippon Kayaku Kabushiki Kaisha Water-in-oil emulsion explosive
US4614146A (en) * 1984-05-14 1986-09-30 Les Explosifs Nordex Ltee/Nordex Explosives Ltd. Mix-delivery system for explosives
US4790890A (en) * 1987-12-03 1988-12-13 Ireco Incorporated Packaged emulsion explosives and methods of manufacture thereof
US5099763A (en) * 1990-05-16 1992-03-31 Eti Explosive Technologies International Method of blasting
US5253585A (en) * 1991-04-26 1993-10-19 David Hudak Explosive pipe crimping method and devices
US5584222A (en) * 1993-02-25 1996-12-17 Nitro Nobel Ab Method for charging bore-holes with explosive
US5597973A (en) * 1995-01-30 1997-01-28 The Ensign-Bickford Company Signal transmission fuse
US5810098A (en) * 1997-01-10 1998-09-22 Wathen; Boyd J. Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063373A (en) * 1959-06-08 1962-11-13 Hercules Powder Co Ltd Method of blasting
US3334052A (en) * 1963-04-30 1967-08-01 Kurz Fredrik Wilhelm Anton Method of preparing a gel product containing air bubbles and the use thereof
DE3118034A1 (en) * 1981-05-07 1982-11-25 Ortwin M. 4330 Mülheim Zeißig "METHOD AND TRIM CAMP FOR INSULATING DRILL HOLES WITH PASTE SET"
DE3429939A1 (en) * 1984-08-14 1986-02-20 Siemens AG, 1000 Berlin und 8000 München Ultrasound interface
JP2832500B2 (en) * 1992-12-02 1998-12-09 和彦 熱田 Bench blasting method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759418A (en) * 1951-08-14 1956-08-21 Allied Chem & Dye Corp Frozen nitrogen tetroxide-hydrocarbon explosives
US4080902A (en) * 1976-11-04 1978-03-28 Teledyne Mccormick Selph High speed igniter device
US4198454A (en) * 1978-10-27 1980-04-15 American Air Filter Company, Inc. Lightweight composite panel
US4548660A (en) * 1983-02-24 1985-10-22 Nippon Kayaku Kabushiki Kaisha Water-in-oil emulsion explosive
US4614146A (en) * 1984-05-14 1986-09-30 Les Explosifs Nordex Ltee/Nordex Explosives Ltd. Mix-delivery system for explosives
US4790890A (en) * 1987-12-03 1988-12-13 Ireco Incorporated Packaged emulsion explosives and methods of manufacture thereof
US5099763A (en) * 1990-05-16 1992-03-31 Eti Explosive Technologies International Method of blasting
US5253585A (en) * 1991-04-26 1993-10-19 David Hudak Explosive pipe crimping method and devices
US5584222A (en) * 1993-02-25 1996-12-17 Nitro Nobel Ab Method for charging bore-holes with explosive
US5597973A (en) * 1995-01-30 1997-01-28 The Ensign-Bickford Company Signal transmission fuse
US5810098A (en) * 1997-01-10 1998-09-22 Wathen; Boyd J. Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0951634A4 *

Also Published As

Publication number Publication date
NO993333D0 (en) 1999-07-06
NO993333L (en) 1999-09-09
AU6432898A (en) 1998-08-03
CA2242871A1 (en) 1998-07-16
CA2242871C (en) 2002-04-09
EP0951634A4 (en) 2002-05-02
BR9807284A (en) 2005-07-19
WO1998030864A2 (en) 1998-07-16
EP0951634A2 (en) 1999-10-27

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