SU1764398A1 - Method of drilling and blasting operations on limit contour of flanks of pits and grooves - Google Patents

Method of drilling and blasting operations on limit contour of flanks of pits and grooves

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Publication number
SU1764398A1
SU1764398A1 SU4815035/03A SU4815035A SU1764398A1 SU 1764398 A1 SU1764398 A1 SU 1764398A1 SU 4815035/03 A SU4815035/03 A SU 4815035/03A SU 4815035 A SU4815035 A SU 4815035A SU 1764398 A1 SU1764398 A1 SU 1764398A1
Authority
SU
USSR - Soviet Union
Prior art keywords
contour
boreholes
zone
ripping
close
Prior art date
Application number
SU4815035/03A
Other languages
Russian (ru)
Inventor
В.В. Емельянов
Б.И. Шуликов
Original Assignee
Научно-производственное объединение по осушению месторождений полезных ископаемых и специальным горным работам "Виогем"
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 Научно-производственное объединение по осушению месторождений полезных ископаемых и специальным горным работам "Виогем" filed Critical Научно-производственное объединение по осушению месторождений полезных ископаемых и специальным горным работам "Виогем"
Priority to SU4815035/03A priority Critical patent/SU1764398A1/en
Application granted granted Critical
Publication of SU1764398A1 publication Critical patent/SU1764398A1/en

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  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

FIELD: mining industry. SUBSTANCE: rows of contour and ripping boreholes are drilled over contour of slope, bench or groove in zone adjoining zone close to contour. Drilling of last row of ripping boreholes in zone bordering on one close to contour is performed at some distance from contour boreholes determined by dependence R≅ R≅ R,, where R is distance from last row of ripping boreholes located in zone bordering on one close to contour to contour boreholes, m; Ris minimal distance equal to 30-40 diameters of borehole, m; Ris maximum distance equal to half zone of cracking over surface, m. Contour and ripping boreholes in zone bordering on one close to contour are loaded with explosive charges. After blast of contour charges first of all ripping boreholes in zone bordering on one close to contour are blasted. After this blasted rock mass is removed, ripping boreholes are drilled in zone close to contour, are charged and blasted. EFFECT: reduced expenditures and provision for keeping safe rock mass beyond contour by shielding of seismoblasting waves thanks to additional growth and opening of cracks in plane of blasted contour charges. 6 dwg
SU4815035/03A 1990-04-16 1990-04-16 Method of drilling and blasting operations on limit contour of flanks of pits and grooves SU1764398A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4815035/03A SU1764398A1 (en) 1990-04-16 1990-04-16 Method of drilling and blasting operations on limit contour of flanks of pits and grooves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4815035/03A SU1764398A1 (en) 1990-04-16 1990-04-16 Method of drilling and blasting operations on limit contour of flanks of pits and grooves

Publications (1)

Publication Number Publication Date
SU1764398A1 true SU1764398A1 (en) 1995-11-20

Family

ID=60533000

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4815035/03A SU1764398A1 (en) 1990-04-16 1990-04-16 Method of drilling and blasting operations on limit contour of flanks of pits and grooves

Country Status (1)

Country Link
SU (1) SU1764398A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2627349C1 (en) * 2016-04-27 2017-08-07 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Забайкальский государственный университет" (ФГБОУ ВПО "ЗабГУ") Method of obtaining determined degree of cracking of a cracky stressed rock massif in explosion of power charges in two parallel contiguous wells
CN114018112A (en) * 2021-10-20 2022-02-08 中国核工业第二二建设有限公司 Nuclear island and corridor foundation pit negative excavation blasting structure and blasting method
RU2784839C1 (en) * 2022-04-29 2022-11-30 Владимир Арнольдович Белин Method for carrying out explosive operations in the circuit zone of quarry

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2627349C1 (en) * 2016-04-27 2017-08-07 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Забайкальский государственный университет" (ФГБОУ ВПО "ЗабГУ") Method of obtaining determined degree of cracking of a cracky stressed rock massif in explosion of power charges in two parallel contiguous wells
CN114018112A (en) * 2021-10-20 2022-02-08 中国核工业第二二建设有限公司 Nuclear island and corridor foundation pit negative excavation blasting structure and blasting method
RU2784839C1 (en) * 2022-04-29 2022-11-30 Владимир Арнольдович Белин Method for carrying out explosive operations in the circuit zone of quarry

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