RU2010112738A - OBTAINING THE PRESENT DEGREE OF CRUSHING A CRACKED MOUNTAIN ARRAY AND THE REQUIRED FACTOR FOR USING AN EXPLOSION BORE - Google Patents
OBTAINING THE PRESENT DEGREE OF CRUSHING A CRACKED MOUNTAIN ARRAY AND THE REQUIRED FACTOR FOR USING AN EXPLOSION BORE Download PDFInfo
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- RU2010112738A RU2010112738A RU2010112738/03A RU2010112738A RU2010112738A RU 2010112738 A RU2010112738 A RU 2010112738A RU 2010112738/03 A RU2010112738/03 A RU 2010112738/03A RU 2010112738 A RU2010112738 A RU 2010112738A RU 2010112738 A RU2010112738 A RU 2010112738A
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- explosive
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- crushing
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Abstract
Способ получения заданной степени дробления трещиноватого горного массива и требуемого коэффициента использования шпура (КИШ) взрывом, включающий бурение шпуров или скважин, их заряжание ВВ с таким расчетом, чтобы в донной части шпура плотность ВВ или концентрация энергии были больше, чем в приустьевой части шпура, отличающийся тем, что массу заряда уплотняемого или высокобризантного ВВ в донной части шпура определяют с учетом величины ЛНС, диаметра заряда, параметров трещиноватости и физико-технических свойств массива горных пород, величины горного давления и скорости детонации ВВ из выражения ! ! где π=3,14; ! W - линия наименьшего сопротивления или расстояние от шпура до контура врубовой полости, м; ! de - средний размер отдельности массива, м; ! Ф - показатель трещиноватости массива; ! d3 - диаметр заряда ВВ, м; ! µ - коэффициент трения между отдельностями массива; ! Р - величина горного давления между отбойными шпурами и врубовой полостью, Па; ! D - скорость детонации ВВ, м/с; ! ν - коэффициент Пуассона горной породы. A method of obtaining a given degree of crushing of a fractured rock mass and the required hole utilization coefficient (KIS) by blasting, including drilling holes or boreholes, loading explosives such that the explosive density or energy concentration in the bottom of the hole is greater than in the wellhead characterized in that the mass of the charge of the compacted or high-explosive explosive in the bottom of the hole is determined taking into account the magnitude of the LNS, the diameter of the charge, the fracturing parameters and the physicotechnical properties of the rock mass, Jicin rock pressure and velocity detonation of expression! ! where π = 3.14; ! W is the line of least resistance or the distance from the hole to the contour of the cutting cavity, m; ! de is the average size of the array, m; ! F - an indicator of fracturing of the array; ! d3 — diameter of explosive charge, m; ! µ is the coefficient of friction between the elements of the array; ! P is the magnitude of the rock pressure between the bore holes and the cutting cavity, Pa ! D — detonation velocity of explosives, m / s; ! ν - Poisson's ratio of rocks.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010112738/03A RU2442957C2 (en) | 2010-04-01 | 2010-04-01 | 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010112738/03A RU2442957C2 (en) | 2010-04-01 | 2010-04-01 | 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 |
Publications (2)
Publication Number | Publication Date |
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RU2010112738A true RU2010112738A (en) | 2011-10-20 |
RU2442957C2 RU2442957C2 (en) | 2012-02-20 |
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Application Number | Title | Priority Date | Filing Date |
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RU2010112738/03A RU2442957C2 (en) | 2010-04-01 | 2010-04-01 | 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 |
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RU (1) | RU2442957C2 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1533451A1 (en) * | 1988-03-15 | 1996-10-20 | Казахский политехнический институт им.В.И.Ленина | Process of formation of explosive charge |
KR100319974B1 (en) * | 1994-04-14 | 2002-04-22 | 브랜슨 제프더블루 | Method and device for hard material crushing by punched hole pressure and stemming bar device for crushing hard material |
RU2366890C1 (en) * | 2007-12-24 | 2009-09-10 | Государственное образовательное учреждение высшего профессионального образования Иркутский государственный университет путей сообщения (ИрГУПС (ИрИИТ)) | Method of cut-hole formation |
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2010
- 2010-04-01 RU RU2010112738/03A patent/RU2442957C2/en not_active IP Right Cessation
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RU2442957C2 (en) | 2012-02-20 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20150402 |