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К методике прогноза горных ударов на рудниках

К методике прогноза горных ударов на рудниках

Abstract

С увеличением глубины разработки Таштагольского месторождения возросла опасность возникновения горных ударов. С 300 м появилось стреляние горных пород, а с глубины 600 м стали возникать горные удары, микроудары и толчки; до 760 м количество динамических явлений возросло. Действующая на сегодня методика прогноза горных ударов имеет низкую достоверность. Цель работы: Разработка рекомендаций по совершенствованию методики прогноза горных ударов на железорудных месторождениях. Методы исследования: Методы математического моделирования для количественной оценки степени влияния контакта породных слоев на распределение КУЭС в массиве. Методы теории аппроксимации для оценки адекватности полученных теоретических зависимостей по экспериментальным данным путем их сопоставления. Результаты: Рассмотрено влияние вертикального плоского контакта двух сред с удельными электросопротивлениями на параметры поля точечного источника, а также рассмотрена модель неоднородной среды, представляющей полупространство из нескольких крутопадающих пластов с плоскими границами. Разработаны рекомендации по совершенствованию прогноза горных ударов на рудниках с использованием электропрофилирования.

The urgency of the discussed issue. With increasing depth the development of the Tashtagol Deposit has increased the risk of rock bursts. With 300 m appeared shooting rocks, and with a depth of 600 m began to emerge rockbursts, micro impacts and shocks; up to 760 m number dynamic phenomena has increased. Acting at present the method of prediction of rock bursts has low reliability. The main aim of the study: Development of recommendations for improving methods of prediction of rock bursts in iron ore deposits. The methods used in the study: Methods of mathematical modeling is to quantify the degree of influence of the contact of the rock layers in raspredelenie CUES in the array. Methods of approximation theory is to assess the adequacy of the theoretical curves to the experimental data by comparison. The results: The influence of the vertical flat contact of two media with specific elektrosoprotivleniya on the options field of a point source, as well as the model of an inhomogeneous medium, representing the half-space of several steep seams with flat borders. Developed recommendations for improving the prediction of rock bursts in mines using elektroproprivod.

Keywords

ЭЛЕКТРОПРОФИЛИРОВАНИЕ, ЭЛЕКТРОСОПРОТИВЛЕНИЕ, УДАРООПАСНОСТЬ, ОДНОРОДНЫЙ МАССИВ, РУДНИК

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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!
0
Average
Average
Average
gold