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.     

Mining regime stabilization in working inclined deposits by blocks

A model is suggested for open working of inclined stratified deposits combined with the use of longitudinal and transverse mining systems. The effect of the sequence of forming a quarry field on the regime of mining operations is evaluated and recommendations are made for stabilizing it. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Tranlated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 81–88, November–December, 1999.     

Concept of developing technology in underground mines of siberia and the far east

Features of the condition of underground mines are presented and basic principles for developing ore mining technology are formulated. It is noted that the main direction for improving mining operations in nonferrous metal deposits is development of mining systems with stowing by solidifying mixtures with waste utilization from mining and metallurgical industries based on the complexes of self-propelled machinery. In order to extract lowvaluable ores under conditions of great depths new variants of breast chamber mining systems, and sublevel caving systems with leaving rock intercalations in the bowels are considered. For ferrous metallurgy mines of the region the expediency is demonstrated for radical reconstruction of technology with development of mining system by sublevel caving with end ore drawing and comprehensive use of self-propelled equipment. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 85–96, May–June, 1999.     

Rockburst-hazard criterion of rock mass

Technological operations employed in preparing blocks for mining by the induced block-caving system are investigated. An estimate is given for the stress-strain state of the mass, and a rockburst-hazart criterion of deposit adopted as the ratio of the seismic energy accumulated in the rock mass to the potential energy contained in the explosion of charge is substantiated. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 44–47, November–December, 1999.     

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.     

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.     

Rock mass response to the decline in underground coal mining

Geomechanical problems of mining in the Ostrava-Karviná Coal Basin were studied on the basis of long-term experience gained from seismological observations. They could serve as reasonable models of rock-mass response to temporary reduction and gradual decline in mining activities and mine closure. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 18–30, January–February, 2006.     

Determination of coal loss and impoverishment in the nonexplosive mining of deposits with a complex structure

Conclusions  

Method to optimize location of technological units in a quarry in view of non-uniform haulage streams

A method to evaluate and choose quarry transportation models is substantiated. Features of transportation-technological networks in quarries, as well as criteria and objectives of arrangement of structural units are considered. A methodical and mathematical support is provided for solving the problems of forming non-uniform haulage streams; a mining system structure is founded. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 53–59, March–April, 2006.     

Concept of a mine of tomorrow for deep mining at gentle copper-and-nickel deposits

The paper discusses the studies devoted to evolution of prospective mining technologies for deep thick strata of the Talnakhsky and Oktyabrsky deposits. The mining-and-technical features of the deposits are considered. A strategic trend is pinpointed towards technological upgrading with automation and robotization of geotechnological processes. The authors prove practicability of concurrent mining of massive sulphide and impregnated ores. The generalized models of mining enterprises are examined, and a concept of a mine of tomorrow is set forth as a system of scientific ideas, principles and priorities. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 89–100, November–December, 2007.     

Estimate of the formation time and other parameters of a disruption structure in open pit walls in terms of Muruntau open pit

The authors estimate parameters of a disruption structure in host rocks in the course of mining in terms of Muruntau open pit. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 56–62, March–April, 2009.     

Classification of geological conditions by types and estimate of the stability of pit edges

Homogeneous, heterogeneous, and composite-structural rock masses and the characteristic failure mechanisms are identified. Methods of calculating the stability of pit edges under various geological conditions are presented. Stage-by-stage estimation of the stability degree of the pit edges as the mining operations deepen is recommended to prevent their large-scale deformations. Interbranch Scientific Center, All-Russian Scientific-Research Institute of Mine Surveying, St. Petersburg. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 48–53, July–August, 1999.     

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.     

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 probability of rockburst occurrence in the Upper Silesian Coal Basin area dependent on natural mining conditions

The presented assessment system of the rockburst occurrence probability and of the state of rockburst hazard takes into account the natural conditions of mining operations over the Upper Silesian Coal Basin area. The principal assessment factors governing the rockburst occurrence probability and the state of rockburst hazard, which have been included in the author’s system, are as follows: depth of coal seam, rock mass structure, geomechanical properties of rocks, energetic properties of rocks, coal seam thickness, distance between a coal seam and a potential seismogenic layer, maximum seismic energy of tremors from a given coal seam. The following four classes of rockburst hazard have been distinguished: no hazard, low hazard, moderate hazard, high hazard. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 55–62, November–December, 2006.     

On information-provided monitoring of geodynamic processes in the Kuznetsk Coal Basin in the conditions of highly intensive sub-soil usage

It is shown that formation of hollows in bowels of the Kuznetsk Coal Basin (Kuzbass), induced by opencut and underground mining has reached an intensity of 1.3–1.5 million m³/day. In the conditions of high concentration of mines and open-cuts in small areas, a regional monitoring network is required in view of a generated geomechanical space, hazardous in geodynamic manifestations. A developed information support of this netwoprk is presented, including information models of a geological environment and database obtained from instrumental observations on geomechanical processes. The equations of connection between structural and strength characteristics of rocks, their metamorphization grade and occurrence depth are given for five geological-tectonic zones of the Kuzbass as a way of prediction of their properties. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 40–66, September–October, 2006.     

Modeling the explosion of a system of borehole charges in a scarp

Conclusions On the basis of the mathematical model here proposed for the action of the explosion of two cylindrical (borehole) explosive charges in the scarp of a rock mass, the scope for investigating the correlation between wave propagation parameters with scarp rock cutting in a pit is expanded. This offers the possibility of solving a series of problem associated with the correction of wave propagation parameters and their optimization in conditions of open-pit mining of minerals. Mining Institute, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 33–38, March–April, 1986.     

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.     

Hydrogeomechanical problems in mining

The hydrogeomechanical problems of mining are considered, which deal with rocks and ground water as a single mechanical system. Among these problems are the openpits slopes stability, rocks consolidation and surface subsidence due to ground water level lowering, water inrushes into mine workings, rock bursts prevention by using the water injection into the advance boreholes, etc. The paper contains the basic theoretical grounds, as well as in-situ and laboratory methods for the investigation of these processes. The combined study of ground water regime and rock deformations has resulted in the theoretical substantiation of the hydrodynamic and geomechanical processes within the scope of unique scientific direction-hydrogeomechanics (Mironenko, 1974). The hydrogeomechanical models are widely used now for the analysis and forecasting the extremely important processes connected with the safe and efficient mining operations, as well as with the protection of geological medium. Among these processes are:

Interrelation among electrophysical properties of clay rocks, their porosity and moisture saturation

The variation ranges for structural clay rock parameters that determine dependence of the electrical resistivity on the porosity and moisture saturation are considered. The test data on the relationship between the electrical properties of pore-filling solutions and their concentration are reported. The process for geoelectric monitoring of physical rock mass condition is described, and the examples of its application to solving mining and technical problems are presented. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 47–58, July–August, 2006.