矿产资源开发中地质环境保护与管理的探讨

随着矿产资源的持续开发,地质环境保护与管理问题日益凸显。本文以可持续矿业开发为核心,探讨了在矿产资源开发过程中保护地质环境的重要性及其实现途径。首先,分析了矿业开发对地质环境的影响,包括土地退化、水资源污染和生态系统破坏等问题。其次,论述了当前地质环境保护的挑战与不足,着重强调了合理规划与科学管理的必要性。最后,提出了一系列地质环境保护与管理的对策和建议,如加强环境立法、实施矿产资源综合利用和恢复破坏地区的生态系统等,以期为可持续的矿业发展提供指导和支持。

Sustainable development of lignite production on open cast mines in Serbia

Energy sector represents a key industrial branch for national, environmental and economic success. With its exclusive access to domestic deposits, lignite industry represents a guarantor of reliable raw materials, offering long-term supply security based on verified reserves. Currently operated coalmines in Serbia (Kolubara and Kostolac) have production around 36 million tons of lignite, and over 108 million m3 of overburden. Consequently, sustainability of lignite production requires cost reduction and environmental protection, as well as capacity increase. In order to rationalise, and increase efficiency of Serbian lignite mines, it is necessary to focus the activities on major issues shown within the triangle of energy policy objectives (security of supply, competi- tive prices and environmental protection). Production process optimisation singled out several special programs. Equipment revi- talization and modernization is necessary taking into account that majority of the currently operated machinery has a life up to 25 years. Production process automation would enable high level of technical operation in the field of open cast mines management. Lack of coal quality uniformity is the permanent problem resulting by great amounts of coal reserves to be used uneconomically. Planning and training at all levels and finally cooperative software for business procedures and work order management. The measures suggested are a key precondition for maintaining competitive position of lignite production on international level.

A Research on Problems for Sustainable Development of Mining Cities in China

As a significant issue, mining cities, especially the resource-exhausted mining cities have already been given intensive attention by academia and government. This article discusses the intrinsic and extrinsic reasons for problems of the mining cities from the perspective of sustainable development, quantitatively analyzes the economic benefit of the mining cities with statistical data, and presents the strategies and measures for sustainable development of the mining cities based on the theoretical discus- sion and empirical study of different types of mining cities. The research shows that: (1) the conflict between the mining cities and the mining enterprises which has been incorrectly dealt with for a long time is the primary reason for the problems of the mining cities. More seriously, the development gap between mining cities and non-mining cities is becoming larger than ever before, due to the domestic and international competition. (2) As a whole, the economic development level of the mining cities is lower than the average level of countrywide cities. The economic benefit of the mining cities is increasing owing to the economic scale, and the economic situations of oil-mining cites and iron-mining cites are relatively better than those of other types of mining cities. (3) The prerequisite of sustainable development of the mining cities is the realization of the transformation of capital superiority so as to promote non-mining economy and substitute the mining economy step by step.

Sustainability and Public Engagement in Mining： The Role of Engineers

Social issues are increasingly recognized as significant inhibitors to mineral development projects. Increasingly, social risk is being recognized as a key factor determining the success of a mineral investment. Groups opposed to a mine for social or political reasons otten use environmental impacts, real or perceived, to prevent mine development. These risk factors depend largely on cultural perceptions of mining activities and must be understood as such in order to be appropriately managed. A first step to addressing social issues is inclusive, transparent and meaningful engagement of stakeholders. This process allows stakeholders to understand what the other parties value in order to collectively establish a common currency for development and the creation of mutual value. Expanding the scope of benefits and values a mine can bring is of increasing importance to mining companies who typically consult outside specialists remote from the mine site and late in the development timeline for this purpose. Training technical staff, engineers and geologists, who make initial and ongoing contact with local interests, in a holistic approach to mine development is crucial to successful and economic mineral development projects. Further extending this conversation to the genera/ public, media governments and non-govemmental organizations is a necessary step in developing a meaningful discourse on the benefit of mining activities.

Economic Limit of Coal Mining Closedown in Restructuring Coal Industry

One of the key points in restructuring the coal industry is to close some deficient coal mines which have neither economic result nor social benefit. Based on the relationship among production, cost, and profit, different economic limits for closing coal mines in different cases were put forward. The relationship between the profit and closedown cost of deficient coal mines was analyzed and an overall economic limit for closing a deficient coal mine was also proposed.

APPLICATION OF NEURAL NETWORK WITH MULTI-HIERARCHIC STRUCTURE TO EVALUATE SUSTAINABLE DEVELOPMENT OF THE COAL MINES

The neural network with multi hierarchic structure is provided in this paper to evaluate sustainable development of the coal mines based on analyzing its effect factors. The whole evaluating system is composed of 5 neural networks.The feasibility of this method has been proved by case study. This study will provide a scientfic and theoretic foundation for evaluating the sustainable development of coal mines.