Санкт-Петербургский горный университет, г. Санкт-Петербург, РФ:

Болобов В. И., профессор, д-р техн. наук, старший научный сотрудник, boloboff@mail.ru

Плащинский В. А., ассистент, канд. техн. наук, SlavaPlash@yandex.ru

Энергоемкость разрушения горной породы является одним из ключевых показателей, позволяющих оценивать эффективность всего процесса добычи полезных ископаемых, в связи с чем особенно важно методологически обеспечить необходимую точность определения данной величины. Представлены методика и результаты экспериментов по раскалыванию песчаника в виде образцов кубической формы и пластин. Установлено, что отнесение энергии раскалывания к площади поверхности скола, как и к объему разрушаемого образца, не демонстрирует удовлетворительной сходимости. В то же время отнесение ее к толщине разрушаемого образца принимает практически постоянную величину. Экспериментально подтверждено, что применение составного ударника, обеспечивающего продленное время ударного воздействия, приводит к снижению энергоемкости разрушения горной породы.

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