Research Into Stability of Tailings Storage at Vostochnaya Coal Processing Plant (Central Kazakhstan) to Assess Its Safe Conservation and Abandonment

Abstract

Целью исследования является изучение инженерногеологических условий грунтов основания и тела дамбы хвостохранилища с дальнейшим расчетом параметров устойчивости дамбы для выбора мероприятий, направленных на оценку возможности эксплуатации хвостохранилища с последующей его консервацией (ликвидацией) при достижении расчетных значений. Разработаны рекомендации и мероприятия по выводу из эксплуатации и переводу хвостохранилища на консервацию с последующей его ликвидацией при обеспечении промышленной и экологической безопасности для окружающей среды. С учетом физико-механических свойств грунтов и пород основания, погодно-климатических условий, результатов моделирования обоснована методика расчета для проведения инженерно-строительных работ, направленных на обеспечение устойчивости внешних откосов дамбы.

An Expert Approach to Assessing Technogenic Risk at Enrichment Plants

“…To determine the internal content of risk components, an analysis of legislative and regulatory technical documentation in the field of industrial and environmental safety regulating the activities of the enrichment plant was carried out [1,2,45,46], information on accidents that occurred at similar production facilities was studied [3][4][5][6][7][8][9][10][11], and cause-and-effect relationships between accident risk factors were studied. The results of the study made it possible for each type of accident to determine the conditions under which they can occur and to formulate technical and environmental criteria parameters (technical and environmental criteria) and their values for assessing risk components.…”

“…A comparative analysis of the data obtained during the processing of survey materials shows a steady increase in the risks of catastrophic events at this facility. To ensure industrial and environmental safety Ryzhkov et al [11] propose measures for decommissioning and transferring the tailings dump of a coal processing plant to conservation with its subsequent liquidation. Ozhigin et al [12] propose a method for assessing the stability of quarry slopes for early detection of emergency situations.…”

Studying rock mass jointing to provide bench stability while Northern Katpar deposit developing in Kazakhstan

“…For decades, researchers have been engaged in the problem how to improve stability of open-pit walls and benches. During the period, several basic scientific schools have been established with different and related tendencies to solve the problem of rock mass stability [45], [46]. Lately, intensive studies have been conducted in the field of rock mass stability during mineral mining.…”

Study of the Properties of Overburdened Rocks From Coal Mining: Overburden – As a Raw Material in the Production of Ceramic Bricks

“…According to the results of the research, the radioactive safety of rocks as raw materials for the production of building materials was assessed. Specific activities of natural radionuclides were determined (Table 2) [24,25].…”