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Publication numberUS3848927 A
Publication typeGrant
Publication dateNov 19, 1974
Filing dateAug 18, 1971
Priority dateFeb 25, 1970
Publication numberUS 3848927 A, US 3848927A, US-A-3848927, US3848927 A, US3848927A
InventorsC Livingston
Original AssigneeC Livingston
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mining method using control blasting
US 3848927 A
Abstract
A mining method comprising:
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Description  (OCR text may contain errors)

i Hamil 0R St de/E3992"? i United States Patent Livingston MINING METHOD usING CONTROL BLASTING [76] Inventor: Clifton W. Livingston, 624

- Panorama Dr., Grand Junction,

Colo. 8150] [22] Filed: Aug. 18, 1971 [21] Appl. No.: 172,736

Related U.S. Application Data [62] Division of Ser. No. 14,166, Feb. 25, 1970.

[52] U.S. Cl...; 299/13, 299/18 [51] Int. Cl. E2lc 37/00 [58] Field of Search 299/2, ll, l3, 18, 19

[56] References Cited UNITED STATES PATENTS 3,301,599 1/1967 Heimaster 299/18 3,588,175 6/1971 Whiting 299/19 OTHER PUBLICATIONS L C. Lang, Mining Itabirite on the Bong Range In Liberia, reprint, Canadian Mining Journal, Nov., 1965.

L. C. Lang, Pit Slope Control by Controlled Blasting,

HIGH TERRACE TERRACE INTERMEDIATE TERRACE OPEN CELL WATER STORAGE RAM HIG INTERMEDIATE Nov. 19, 1974 Reprint, Canadian Mining Journal, Dec., 1965.

Primary ExaminerErnest R. Purser Attorney, Agent, or Firm-Sherman & Shalloway [57] ABSTRACT A mining method comprising:

a. preparing a bench free face by conducting test blasts;

b. establishing a pattern of cellular units separated by pillars of the ore body to be mined; c. tunneling horizontally through the ore body perpendicular to the free face in the pillar areas;

d. tunneling through the cellular units parallel to the free face and at the same level as the tunneling in step (c);

e. placing charges in the tunnels formed in step (d) in the area of the cellular units; and

f. detonating the charges.

The concept of product control blasting, trajectory control blasting and/or stability control blasting are applicable to the mining method.

30 Claims, 36 Drawing Figures HIGHWALL ACTIVE MINING CELLS TERRACE PArEmmnvlslsm 3,848,927

sum mar CRATER PATENIE HUV I 91974 saw an or 21 PATENH" 9 '9 3, 848.927

sum 05 or 21 LBS. 04, 1958 NOW SURFACE 10 LBS. c- 4, ICE I 0.8

10 I. as. A 60 TR ENCH SNOW I 02 CHURCHILL TILL 0.4

///' ATLA$ 6C, KEWEENAW SILT ENERGY UTILIZATION NUMBER, A

DEPTH RATIO A PATENIEL I 91974 3. 848.927

SHEET as or 21 'SCALED CHARGE DEPTH AB w- I I I /l 8 I I I I I 8 l I I I. I I I I I 7 I I I II 7 I I RADIAL I I CRACKS I l I 6 l I s I I l secono RING I I I ICRACKS I I I J! I l 5 I I I I 5 Io -INCREMENT I I fl QI I Lu i I LZ) I B 4 I CRATER I I 4 5; I QIMIT I I I Q B I '2 I C I I j I I I 3 y I I 3 o l I w I I .I g FRAGMENTATION RANGE. DOMING RANGE l 2 I I I 1 I 1 2 AB. 9 I S.R.' PR. I SH. UPLIFT REGION I J REG.,' i R. F I I I 1/ I l I AIRBLAST |e.s.o. w R. on. PRE-CONDITIONING I i I I I P S I 4 I I 4 I 3 I I j: 3 2 v I V I 2 AU B I V I X I l I I \l N I l O 1.1 17 v 0 O RAT ERING SCALED BURDEN d I I I 90 o I I 4 I W 0 I 2 3 4 5 I 6 LEGEND:

A.B. REG. Airblasi Region 8.8.0. Bond SIrengIh DesIrucIion SR. Secondary Region V/W R. V/W Region P. R. Primary Region C.R. Course Region SH.R. Shear Region AU. B Auiogenous Blasting P.SI ParIicle Size 0.8. Conventional Blasiing PATENIELHUV 1 9 14 3; 848.927 1 SHEET 09 UF 2! w; I 0 m Lataraloxtant of bond g y I/ strength dutruction '5 (gas bubble rodiuu) I 8 0.4- g z' .7 0 i 7 1 N SCALED CHARGE DEPTH l l o l I DEPTH RATIO A PATENTEL my 1 sum SHEET 10 0F 21 DIRECTION OF ADVANCE ORIENT PAFIALLEL t0 MAJOR JOINT SYSTEM END LINE A (PRIMACORD LOOP BURDEN CONTROL LINE B FACE DO NOT REDUCE MINIMUM l, SLIDING RESISTANCE REPLACE LINED WITH LINE C, ADD LINES B AND A ON OPENING SHOT PRIMACORD LOOP SHORT PERIOD BACK LINE E DELAY NO.

CODE V-1 V-Z V-3 B-1 8-2 8-3 8-4 8-5 8-6 8-7 8-8, sYM Q Q (h 69 6 0 I82 E Q DIA. IN. 9.875 9.875 9.875 9.875 9.875 9.875 9.875 9.875 9.875 6.525 5.625

SUB. FT 6.91 6.17 6.27 I 6.17 5.78 5.47 4.97 4.97 5.18 4.50 3.70 DEPTH ft. 40.91 40.17 40.27 40.17 39.78 39.74 38.97 38.97 39.18 38.50 37.70

LINE OF SYMMETRY D FOR COMPOSITE BLASTS PATENI rznv 1 91924 sum 13 or 1 PATENTEL HEY I 91974 snm 15 or 21 4 3 .Ewummm PREDOMINANT PARTICLE VOLUME, CU FT PATENTE HS! 1 91974 sum 18 or 21

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3301599 *Feb 27, 1964Jan 31, 1967Union Carbide CorpMethod of continuous open-pit mining and apparatus therefor
US3588175 *Apr 15, 1969Jun 28, 1971Atlantic Richfield CoMethods for mining deep thick oil shale deposits
Non-Patent Citations
Reference
1 *L. C. Lang, Mining Itabirite on the Bong Range In Liberia, reprint, Canadian Mining Journal, Nov., 1965.
2 *L. C. Lang, Pit Slope Control by Controlled Blasting, Reprint, Canadian Mining Journal, Dec., 1965.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4007965 *Jul 18, 1975Feb 15, 1977Shuttle Jr Anthony JMethod of recovering useful minerals from subterranean deposits thereof
US4143917 *Oct 11, 1977Mar 13, 1979Continental Oil CompanyIn-situ retorting of oil shale with in-situ formed arches
US4300800 *Sep 14, 1979Nov 17, 1981Occidental Oil Shale, Inc.Method of rubbling a pillar
US4372615 *Sep 29, 1980Feb 8, 1983Occidental Oil Shale, Inc.Method of rubbling oil shale
US5098163 *Aug 9, 1990Mar 24, 1992Sunburst Recovery, Inc.Controlled fracture method and apparatus for breaking hard compact rock and concrete materials
US5308149 *Jun 5, 1992May 3, 1994Sunburst Excavation, Inc.Non-explosive drill hole pressurization method and apparatus for controlled fragmentation of hard compact rock and concrete
US5611605 *Sep 15, 1995Mar 18, 1997Mccarthy; Donald E.Method apparatus and cartridge for non-explosive rock fragmentation
US5803550 *Aug 7, 1996Sep 8, 1998Bolinas Technologies, Inc.Method for controlled fragmentation of hard rock and concrete by the combination use of impact hammers and small charge blasting
US5803551 *Sep 13, 1996Sep 8, 1998First National CorporationMethod apparatus and cartridge for non-explosive rock fragmentation
US6035784 *Aug 2, 1996Mar 14, 2000Rocktek LimitedMethod and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole
US6145933 *Jun 11, 1999Nov 14, 2000Rocktek LimitedMethod for removing hard rock and concrete by the combination use of impact hammers and small charge blasting
US6148730 *Jan 22, 1999Nov 21, 2000Rocktek LimitedMethod and apparatus for controlled small-charge blasting by pressurization of the bottom of a drill hole
US6321655Apr 9, 1999Nov 27, 2001Rocktek LimitedMethod and apparatus for flyrock control in small charge blasting
US6332401Apr 9, 1999Dec 25, 2001Rocktek LimitedMethod and apparatus for pressure wave suppression in small-charge blasting
US6435096Nov 10, 2000Aug 20, 2002Rocktek LimitedMethod and apparatus for controlled small-charge blasting by decoupled explosive
US6772105Sep 8, 1999Aug 3, 2004Live Oak MinistriesBlasting method
US7406918Feb 9, 2007Aug 5, 2008Orica Explosives Technology Pty Ltd.Method of blasting
US7418373 *Aug 3, 2004Aug 26, 2008Live Oak MinistriesBlasting method
US8099240 *Sep 24, 2010Jan 17, 2012Live Oak MinistriesBlasting method
US8380436Jan 10, 2012Feb 19, 2013Live Oak MinistriesBlasting method
US8538698Jan 30, 2013Sep 17, 2013Live Oak MinistriesBlasting method
US9058707 *Feb 17, 2010Jun 16, 2015Ronald C. BensonSystem and method for managing and maintaining abrasive blasting machines
US20040159258 *Jan 18, 2002Aug 19, 2004Brent Geoffrey FrederickMethod of blasting
US20050010385 *Aug 3, 2004Jan 13, 2005Heck Jay HowardBlasting method
US20100211429 *Feb 17, 2010Aug 19, 2010Benson Ronald CSystem and method for managing and maintaining abrasive blasting machines
Classifications
U.S. Classification299/13, 299/18
International ClassificationE21C41/26, E21C41/22, E21C37/00, F42D1/00
Cooperative ClassificationE21C41/26, E21C37/16, E21C41/31, F42D1/00
European ClassificationE21C37/16, E21C41/31, F42D1/00, E21C41/26