Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке

Автор(ы):Karzulovic A., Sepulveda R.
Издание:11 стр.
Язык(и)Английский
Open pit problems in engineering practice / Проблемы открытых карьеров в инженерной практике

This paper describes some mitigation/remedial measures used in Chilean open pit engineering practice to deal with some common pit slope problems. These measures include the use of controlled blasting techniques, slope depressurization and pit dewatering, use of retaining dikes, buttresses and removal of material in unstable slopes, and the filling of pre-existing underground excavations and surface craters.  <...>

ТематикаОткрытые горные выработки
Автор(ы):Chen Z.Y., Hoek E., Karzulovic A., Read J.
Издание:2000 г., 17 стр.
Язык(и)Английский
Rock slopes in civil and mining engineering / Скальные откосы в гражданском и горном строительстве

Rock slopes with heights approaching 1000 m are now being designed and excavated in various open pit mining and civil engineering projects around the world. The economic impact of excessively conservative designs or of failures in these slopes can be very large and every effort has to be made to optimise their design. Their size means that they will almost always contain a number of significant structural features and a variety of geological materials.

ТематикаГорное дело
Автор(ы):Dyke G.P.
Издание:2009 г., 8 стр.
Язык(и)Английский
Best practice and new technology in open pit mining geotechnics: Geita gold mine, Mali–a case study / Передовой опыт и новые технологии в области геотехники открытых горных работ: золоторудный рудник Гейта, Мали – тематическое исследование

With the removal of the majority of the shallow mineral reserves there has been an increase in the mining depths in the South African mining industry. This has, in turn, changed the industry’s and stakeholders’ perceptions of risk associated with mining-induced instability. In recent years the increased mining depth, particularly in open pits, has led to an increase in pit slope failures, which has highlighted the need for appropriate and effective pit slope management programmes. Such a programme comprises many facets, including mine hazard plans, regular slope inspections, cleaning of interim and final pit faces, blasting practices, histories of failures, pit depressurization, stormwater control and evacuation procedures. However, it is arguably in the field of slope monitoring that the most significant strides have been made in terms of new technologies and best practice in open pit mining geotechnics, with the introduction of technologies such as laser scanners and slope stability radar. This paper seeks to illustrate the operational benefits associated with the implementation of new technologies into open pit mining, using AngloGold Ashanti’s Geita Gold Mine in Tanzania as an example. <...>

ТематикаГорное дело
Автор(ы):Flores G., Karzulovic A.
Издание:24 стр.
Язык(и)Английский
The role of the geotechnical group in an open pit: Chuquicamata Mine, Chile / Роль геотехнической группы на открытом карьере: шахта Чукикамата, Чили

The purpose of this paper is to present the way how the Geotechnical Group of Chuquicamata Division works on geological, geotechnical and hydrogeological characterizations, analysis and design of slopes, the control of slope excavation to develop the proposed designs, and the monitoring and control of slope behavior. On the other hand, it also describes the interaction of this group with the Planning and Mine Operation groups, and the applied research and technological innovation that the Geotechnical Group develops in order to maintain a continuous improvement and, at the same time, to secure the fulfillment of mid and long term mining plans. <...>

Автор(ы):Головкин Е.
Издание:SRK, Москва, 2023 г.
Язык(и)Русский
Замер ориентировок трещин cмартфоном
ТематикаГорное дело
МеткиГеомеханика, Ориентированные трещины, Презентация, Структурная геология
Автор(ы):Sjoberg J.
Издание:1999 г., 30 стр.
Язык(и)Английский
Analysis of large scale rock slopes / Анализ крупномасштабных скальных откосов

Design of slope angles for open pit slopes have become increasingly important as mining depths in open pits worldwide continue to increase. Even a minor decrease of the slope angle leads to large additional costs due to increased waste rock extraction. On the other hand, with increased slope angles comes an increased risk of slope failure. A large scale failure can be very disastrous both to the operation and to the personnel working in the mine. <...>

Автор(ы):Жиянов А.Б., Насиров У.Ф., Шарипов Л.О.
Издание:Навои, 2024 г., 16 стр., УДК: 621.235 (041.3)
Язык(и)Русский
Способ управления  состоянием массива горных пород (учебно-методическое пособие)

В работе определены критерии оценки работы экранирующих щелей через коэффициент их защитной способности, рекомендованы решения для снижения ширины зоны остаточных деформаций, установлены параметры оконтуривающих зарядов для создания экранирующей щели с повышенной защитной способностью и выбраны параметры взрывания в приконтурной зоне. Разработан сейсмобезопасный способ ведения взрывных работ в приконтурной зоне карьера, позволяющий снизить динамическое воздействие на борт карьера, определить сейсмически наименее опасные направления воздействия взрыва и добиться равномерного сейсмического воздействия.
Методика предназначена для инженерно-технических работников, научных сотрудников, соискателей, занимающихся вопросами разрушения горных пород взрывом, а также бакалавров и магистрантов горных вузов и факультетов.

Ленты новостей
1281.38