CA2242871A1 - Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein - Google Patents

Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein

Info

Publication number
CA2242871A1
CA2242871A1 CA002242871A CA2242871A CA2242871A1 CA 2242871 A1 CA2242871 A1 CA 2242871A1 CA 002242871 A CA002242871 A CA 002242871A CA 2242871 A CA2242871 A CA 2242871A CA 2242871 A1 CA2242871 A1 CA 2242871A1
Authority
CA
Canada
Prior art keywords
rock
periphery
bore holes
shock transmitting
opening
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
CA002242871A
Other languages
French (fr)
Other versions
CA2242871C (en
Inventor
Boyd J. Wathen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2242871A1 publication Critical patent/CA2242871A1/en
Application granted granted Critical
Publication of CA2242871C publication Critical patent/CA2242871C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
CA002242871A 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 Expired - Fee Related CA2242871C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/781,880 1997-01-10
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
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
US08/879,743 1997-06-20
PCT/US1998/000270 WO1998030864A2 (en) 1997-01-10 1998-01-09 Blasting with shock absorbing gel

Publications (2)

Publication Number Publication Date
CA2242871A1 true CA2242871A1 (en) 1998-07-16
CA2242871C CA2242871C (en) 2002-04-09

Family

ID=27119916

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002242871A Expired - Fee Related 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

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

Family Cites Families (16)

* 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
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
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
DE3118034A1 (en) * 1981-05-07 1982-11-25 Ortwin M. 4330 Mülheim Zeißig "METHOD AND TRIM CAMP FOR INSULATING DRILL HOLES WITH PASTE SET"
JPS59156991A (en) * 1983-02-24 1984-09-06 日本化薬株式会社 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
DE3429939A1 (en) * 1984-08-14 1986-02-20 Siemens AG, 1000 Berlin und 8000 München Ultrasound interface
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
GB9109097D0 (en) * 1991-04-26 1991-06-12 Secr Defence Brit Explosive procedures for capping runaway oil and gas wells
JP2832500B2 (en) * 1992-12-02 1998-12-09 和彦 熱田 Bench blasting method
SE505963C2 (en) * 1993-02-25 1997-10-27 Nitro Nobel Ab Method for loading boreholes with explosives
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

Also Published As

Publication number Publication date
WO1998030864A3 (en) 1999-01-28
AU6432898A (en) 1998-08-03
WO1998030864A2 (en) 1998-07-16
BR9807284A (en) 2005-07-19
NO993333D0 (en) 1999-07-06
EP0951634A2 (en) 1999-10-27
EP0951634A4 (en) 2002-05-02
NO993333L (en) 1999-09-09
CA2242871C (en) 2002-04-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed