Научный центр геомеханики и проблем горного производства, Санкт-Петербургский горный университет, Санкт-Петербург, Россия:

Павлович А. А., зав. лабораторией, канд. техн. наук, pavlovich_aa@pers.spmi.ru
Хорева А. Ю., научный сотрудник, канд. техн. наук

Представлены результаты лабораторных испытаний отвальных смесей с различной крупностью фракций и разной влажностью. Лабораторные испытания проводили методом одноплоскостного среза с использованием системы GCTS RDS 200 (диаметр срезной коробки 150 мм) и прибора компании ELE (диаметр срезной коробки 63 мм) для скальных пород в разрыхленном состоянии. Выполнено сопоставление результатов лабораторных испытаний отвальных смесей с зависимостями Т. М. Лепса, которые используют в зарубежной практике для определения прочностных свойств отвальных пород. Сделан вывод о возможности использования кривых Лепса для решения простых практических задач. Для оценки прочностных свойств отвальных смесей следует разрабатывать специальную программу исследований с учетом всех особенностей эксплуатации отвалов и использовать необходимый для решения задач подход (лабораторные и натурные испытания, моделирование).

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