Classification of methods for ore mining at a large depth

The authors analyzed various criteria that are used in different classifications of mining methods and systems. It is shown that today’s complex geomechanical situation of mining at large depths and wide application of mobile machinery to mineral exploitation has brought to nothing the erstwhile practical importance of many geotechnologies. The modern trend-based classification of the underground ore mining methods is proposed. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 47–57, November–December, 2008.     

Radon measurements as a monitoring possibility for mining subsidence occurrence

Using the former Luxembourg mining basin as a test site, the current research has been carried out to check whether or not subsurface radon concentrations can be related to mining and mining subsidence voids in order to allow the creation of a subsidence risk map. The location of enhanced radon concentrations may point to a local increased subsidence risk, consecutive to a fractioning of the underground. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 120–124, September–October, 2006.     

GPS telemetry of energetic-technical and technological parameters at open pit mines

Application of GPS in mining and geology has proved to be of ever increasing importance since recently. GPS is used for positioning both researching and exploitation drill holes, mining facilities, equipment, machines, when monitoring slopes and falls, mining facilities dimensioning, navigation of machines, roads tracing, etc. The paper presents a pilot system for surveillance and monitoring of energetic and technological parameters at open pit mines, developed at the “Jazovnik” open pit mine for experimental purposes. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 90–94, July–August, 2008.     

Express-estimating of investment into hard mineral deposit development

The review of the domestic and foreign cost-estimate methods for the development of mineral deposit is performed. A new approach has been proposed for the operational estimate of the reserves accessibility and costs of a deposit development. The results are presented for the approval of the approach as applied to open-cast mining at copper-porphyritic deposits. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 90–97, July–August, 2007.     

Influence of mining and geological factors on the application range of the blast-free technology during open pit mining

The relationships between the structural weakening coefficient of rocks and the geological, mining and technical factors have been obtained from the statistical analysis of actual data. The provisions for wider application range of the blast-free technology in open pit mining are revealed. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 86–89, July–August, 2007.     

An Evaluation of Metal Contamination in Surface and Groundwater around a Proposed Uranium Mining Site, Jharkhand, India

The East Singhbhum region is a highly mineralised zone, with extensive mining of copper, uranium, and other minerals. The concentrations of certain metals (Fe, Mn, Zn, Pb, Cu, and Ni) were measured in 10 groundwater locations and eight surface water locations for four seasons during 1 year around a proposed uranium mining area. The ranges of Fe, Mn, Zn, Pb, Cu, and Ni in surface water were 0.08–1.21, 0.02–0.32, 0.02–3.48 mg/L, 0.84–14, 1.25–36, and 1.24–15 μg/L, respectively, while in groundwater, the ranges were 0.06–5.3, 0.01–1.3, 0.02–8.2 mg/L, 1.4–28, 0.78–20, and 1.05–20 μg/L, respectively. Only Fe and Mn were found to exceed India’s drinking water standards. The data have been used to calculate a metal pollution index (MPI). The MPI of both groundwater (28) and surface water (10) is well below the index limit of 100, which suggest that neither is generally contaminated with respect to these metals.     

Gis-technologies for integrated assessment of the productive mining areas

The paper describes the bases of a new application of GIS-technologies for integrated assessment and comparison of the productive mining areas, involving a wide range of mining and technological factors, considering mineral properties, mineral occurrence conditions and geographical advantages of a mineral deposit location. The model capabilities are exemplified by a comparison of technological characteristics of coals, transportation and power supply infrastructure of the productive mining areas at the Kuznetsk Coal Basin. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 91–101, May–June, 2008.     

Reequipment and development of mining method at Zapolyarny Mine

The mining conditions in Yuzhny district of Zapolyarny Mine are reported. The alternative mining technologies for the additionally explored mine field are considered. The results of modeling and evaluation of stress-strain state in rocks under mining by the discussed mining technologies are cited. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 84–94, May–June, 2007.     

The potential of technogenic formations in mines of the West Siberia

The profit expectations of treating the technogenic formations in mines of the West Siberia are assessed based on the analytical studies. The innovative processing technologies will allow production of marketable concentrates, extraction of noble and rare metals and manufacturing of fractioned ballast stone. Technogenic formation is dumped wastes of previous mining enterprises, which contain sufficient raw material suitable for the efficient commercial utilization and new production with the new technologies applied __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 71–77, July–August, 2008.     

Chamber Mining with Roof Caving at the Nikolaevsk Mine

The results are considered for the in situ testing of a new variant of chamber mining with roof caving by the chamber - pillar scheme under complicated conditions at large depths. It is shown that the increased horizontal stresses in a rock mass promote improvement of the undermined roof stability and give an opportunity to raise the volumes of chamber mining. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 60–67, July–August, 2005.     

New underground mineral mining approaches

The authors offer new solutions for mineral mining. A key idea is the construction of artificial separating masses at the stage of preparing a deposit and its part for exploitation. In terms of the underground mines belonging to “Alrosa“ JSC, “GMK Norilsk Nickel“, it is shown that the implementation of the new approach will prevent mine workings from aggressive water ingress, secure from other negative factors, and will allow the application of highly productive chamber mining schemes. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 89–97, September–October, 2008.     

Problems of planning theory for developing bowels with underground mining of ore deposits

A set of problems is considered for planning underground mining of ore deposits. Achievements are noted in domestic mining science in the field of improving planning methods and design parameters for underground mines. Principles in the development of planning theory for mining enterprises at the contemporary level are formulated. Institute of Problems of Complex Development of Bowels, Russian Academy of Sciences, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 80–84, May–June, 1999.     

Social background of up-dating the underground iron-ore mining technology in Siberia

The author analyzes industrial injuries and diseases in terms of iron-ore mining enterprises in Siberia. It is shown that the harm to health is conditioned by the technology chosen for underground mining. To improve the safety of mining operations, it is recommended to select the sublevel caving method with areal-frontal ore drawing and mobile mining machinery for thick steep deposits. __________ Translated from Fiziko-Tekhnicheskie ProblemyRazrabotki Poleznykh Iskopaemykh, No. 5, pp. 98–104, September–October, 2008.     

On a disastrous rock pressure criterion for stratified deposit exploitation

The paper offers a criterion to estimate geodynamic hazard of underground or surface stratified mineral mining based on the variation of energy stored due to mining. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 26–37, March–April, 2009.     

Possibility of commercial application of a mixed geotechnology when developing the deposits of Kursk Magnetic Anomaly

A study is performed into alternative methods of mixed geotechnology application to large-scale mining of different-grade ores at thick deposits. The efficiency of using various combinations of physical and technical procedures for comprehensive development of the Earth’s interior is demonstrated. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 77–83, May–June, 2007.     

Geomechanical conditions of kimberlite extraction in terms of internatsionalnaya kimberlite pipe

The paper analyzes geomechanical conditions of slicing method application to extract a vertical ore body in terms of Internatsionalnaya kimberlite pipe. The authors assess stability of stopes at principal stages of horizon mining. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 46–55, March–April, 2009.     

Performance potential of the coal strip mining in the east of Russia

The potentialities of the leading mining districts in Russia to improve coal production by strip mining are analyzed. The operational issues of the Erunakovskiy (Kuzbass), Kansko-Achinskiy and South Yakutia territorial production complexes are considered. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 98–105, July–August, 2007.     

Geomechanical substantiation of access roads and stope faces in upward mining of the reserves subjacent the open pit bottom in terms of the mine “Aikhal”

Based on the numerical modeling results, the authors have revealed the features of stress state in the vicinity of development and stope workings in the course of the upward slice chamber-and-pillar mining under the open pit bottom in terms of the mine “Aikhal”. The optimal layout of access entries and their mining sequence in a layer are substantiated. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 47–55, March–April, 2008.     

Sizing room and pillar by numerical modeling for underground marble quarries in Turkey

Optimal parameters of room-and-pillar mining have been established by numerical modeling based on in-situ data on topography, geological structure and physico-mechanical properties for three marble quarries in Turkey. Vertical stresses in pillars are estimated and rock stability classification is developed. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 83–89, September–October, 2006.     

Nature-oriented open coal mining technologies using mined-out space in an open-pit. Part II: A method for selecting rational sequence of mining flat dipping stratified deposits

A method is proposed for selecting a rational mining sequence with internal dumping for flat stratified deposits, using new principles of the open-pit process-space formation and development. The main criteria for substantiating the mining sequence are geometrical form and development direction of the open-pit space, structure of the working wall and transportation network, internal dumping capacities and mining earthworks volumes. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 64–74, January–February, 2007.