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Date submitted2022-10-17
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Date accepted2023-02-13
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Date published2023-04-25
Environmental geotechnology for low-grade ore mining with the creation of conditions for the concurrent disposal of mining waste
Due to the constantly deteriorating environmental situation in the regions with mining enterprises, the article considers the topical issue of disposing the maximum possible volume of waste from the mining and processing of low-grade ferrous ores through the creation of an effective underground environmental geotechnology. Traditional procedure with descending mining of reserves with a caving system does not allow waste to be disposed of in a gob. The idea is to use geotechnology based on the ascending order of mining the ore body, room excavation, leaving truncated pillars, and staggered arrangement of adjacent rooms in height, which makes it possible to form containers for waste disposal in the form of a cementless backfill. The main characteristics of the proposed procedure are investigated and compared with the traditional procedure of low-grade iron ores mining. It was established that from the point of view of the complete extraction of reserves and the unit costs for the preparatory-development operations, the processes are comparable, while in terms of the mining quality, the proposed option is much more efficient. Evaluation of environmental geotechnology by the criterion of waste disposal, performed according to the proposed methodology, showed that the combination of these technical solutions ensures the placement in the formed gob from 80 to 140% of all waste generated during the mining and beneficiation of low-grade iron ores.
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Date submitted2019-09-29
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Date accepted2020-02-24
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Date published2020-04-24
Vs sustainable development: scenarios for the future
Issues of sustainable development began to concern mankind starting from the 20th century, when mass industrialization and the depletion of natural resource potential contributed to the formulation of environmental issues at one of the leading places in scientific discourse. However, what if the goals of sustainable development would not be achieved to 2030? What other way we can identify for humanity to survive? So, the study is about the problems of studying the understanding of the term “sustainable development”, considering the evolution of the formation of the concept of sustainable development and analyzing the modern goals of sustainable development for attainability. From an analysis of domestic and foreign experience, possible scenarios of the development of mankind are identified (such as 1. Creating an environmental framework, 2. Implementation of sustainable nature management practices in the conditions of natural and man-made objects, 3. Implementation of “geoengineering projects”, 4. Construction of autonomous ecosystems, 5. Space exploration in search of a new planet for life, provided that the goals of sustainable development would not be achieved. It has been established that today probability of achieving all the sustainable development goals by 2030 is too small, and the indicated scenarios require, firstly, the development of science and technology, and secondly, a competent assessment of the value of nature and solving the issue of specifying property rights for natural goods.
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Date submitted2014-10-04
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Date accepted2014-12-26
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Date published2015-08-25
Conservation of municipal solid waste landfills for landfill gas utilization
- Authors:
- M. A. Pashkevich
- T. A. Petrova
The assessment of existing technologies for storage and utilization of domestic solid waste in Russia and other countries is conducted. The regions of landfill sites for household waste disposal are investigated. The results of field observations of the quality of air, surface water and ground-water are given. The method of effective isolation of a landfill surface using polymer materials is proposed. The technological process of landfill surface covering with the help of a selfpropelled screening machine is described. This method allows organizing centralized biogas utilization from landfills, improves the environmental situation in the regions of their location, reduces air pollution and practically eliminates spontaneous combustion of waste.
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Date submitted2009-10-21
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Date accepted2009-12-15
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Date published2010-09-22
Geoecological monitoring as an information base of accident-free operation of gas mains under conditions of the Far North
- Authors:
- N. B. Pystina
- A. V. Baranov
The present report considers dangerous destructive processes that may result in serious accidents during operation of gas mains under conditions of the Far North, and also measures to prevent them.
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Date submitted2009-08-17
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Date accepted2009-10-12
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Date published2010-02-01
Complex geological engineering and geoenvironmental monitoring as a basis for creation of strategy of Saint Petersburg architectural and historical monuments conservation
- Authors:
- A. V. Shidlovskaya
In the paper concept and structural of complex engineering geological and geoenvironmental monitoring of architectural and historical monuments are considered. The specificity of engineering geological and hydrogeological conditions by the example of the Isaac Cathedral, the Kazan Cathedral and the Peter and Paul Cathedral is analyzed. The geoenvironmental condition of architectural and historical monuments underground space is estimated. The factors which influence on monuments deformation due to the high degree of underground space transformation and activity of negative natural and technogenic processes are shown. The system of impact monitoring of the Isaac Cathedral, the Kazan Cathedral and the Peter and Paul Cathedral is proposed.
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Date submitted2008-11-16
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Date accepted2009-01-30
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Date published2009-12-11
Social and ecological responsibility of mineral and raw materials companies
- Authors:
- A. O. Kharchenko
In this article the author describes the basic concept of the corporate social responsibility, analyzes main features and standards of making of social reports of major companies. Specificity of reports in the Russian companies is allocated, and some offers with a view of activization of promotion both further ordering CSR and the eco-reporting in the Russian Federation on the basis of introducing new administrative and economic methods.