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Анализ проходки шарошечных долот в условиях Олимпиадинского ГОКа ЗАО «Полюс»

Анализ проходки шарошечных долот в условиях Олимпиадинского ГОКа ЗАО «Полюс»

Abstract

При бурении сложноструктурных массивов горных пород, имеющих колебание физико-механических свойств по глубине, часто возникают значительные ударные нагрузки и вибрация, результатом которых является увеличение циклических напряжений во всем буровом органе. При этом 80% случаев отказов приходятся на разрушение опор качения шарошек буровых долот. Рассмотрены конструктивные особенности, режимы, условия эксплуатации и причины отказов шарошечных долот. Проведен анализ проходки отдельных марок шарошечных долот.Определены зависимости проходки различных типов шарошечных долот от крепости горных пород, при бурении отдельными станками Олимпиадинского ГОКа ЗАО «Полюс» и зависимости проходки шарошечных долот от крепости горных пород при бурении взрывных скважин отдельными типами долот различного диаметра. Получены экспериментальные зависимости, позволяющие повысить эффективность шарошечного бурения путем рационализации выбора конкретных марок долот и режимных параметров.

In the process of boring in massive rock having physico-mechanical fluctuation in depth, significant shock and vibration often occur, as a result there is an increase of cyclic stresses throughout the drilling body. In this case 80% of failures are the pillars distruction of the rolling cutter drill bits. Considered design features, modes, conditions and reasons of failures of roller bits. The analysis of the penetrations of the individual brands of roller bits.The dependence of roller bits penetraiting on rock hardness by means of separate mining drilling machines is estimated of Olimpiadinskiy mining and concentration complex «POLYUS» and the dependence of drill bits penetration on rock hardness during drilling of blastholes specific types of drill bits of various diameter.Experimental relationships that improve the efficiency of rolling drilling through the rationalization of the choice of specific brands of chisels and operating parameters.

Keywords

СТОЙКОСТЬ ДОЛОТА.,КРЕПОСТЬ ГОРНЫХ ПОРОД,THE FORTRESS OF ROCKS,ШАРОШЕЧНОЕ ДОЛОТО,ROLLER BIT,БУРЕНИЕ СЛОЖНОСТРУКТУРНЫХ МАССИВОВ ГОРНЫХ ПОРОД,DRILL OF COMPLEX STRUCTURE ROCK MASSIFS,HARDNESS OF ROLLER BIT

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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