SovietRxiv · Open Access in English
Rediscovering the Soviet scientific archive, in English
25456 full-text translations 14926 English PDFs 22540 abstracts
Showing 50 of 25456 papers
This paper surveys experimental regularities in electronic processes in ionic crystals, especially alkali halides, and relates them to lattice energy, chemical composition, and crystal structure. It compares data on hardness, melting point, dielectric strength, conductivity, polarizability, refracti…
This paper examines the use of the geodetic intersection method for establishing planimetric working control in open-pit mines and geological exploration sites, where polygonometric, theodolite, and triangulation methods are often hindered by terrain, labor, and timing constraints. It compares these…
This paper develops a generalized theory of surface aligned ray networks as an alternative to conventional triangulation in geodetic construction. It defines ray networks on smooth surfaces, classifies them by directionality, connection to fixed vertices, and composition of initial data, and formula…
This paper proposes a modification of the ordinary Gaussian point and integral probability laws for measurement errors, motivated by the claim that real observations without gross errors have finite attainable limits rather than infinite tails. It defines symmetric bounds around the mean, constructs…
This paper develops a tabular interpolation method for converting between geodetic coordinates and rectangular coordinates in the Gauss projection, intended to reduce the labor and expertise required by classical formula-based computations. It derives correction terms for interpolation along paralle…
This paper presents a graphoanalytical method for computing mine-survey orientation through two vertical shafts so that the directional angle of a chosen initial underground traverse side has minimum error. Using error ellipses for the plumb lines and a resultant curve of mean errors, the method ide…
This paper develops a least squares procedure for adjusting networks of underground connecting traverses oriented through three or more vertical mine shafts, a case identified as insufficiently treated in existing mine surveying and geodetic literature. It formulates condition equations for traverse…
This paper develops a general method for computing and assessing the accuracy of underground survey orientation through two vertical mine shafts. It argues that the method commonly recommended in mine-surveying literature, which omits only the side between the plumb lines, is a special case of a bro…
This article analyzes the operation of near-face and special supports in a Kuzbass longwall, relating support performance to mining and geological conditions and to the behavior of the roof-support system. Mine observations in longwall No. 58 measured roof subsidence during cutter-loader extraction …
This paper reports instrumental observations of side rock displacement ahead of a shield mining face in a steeply dipping thick coal seam at the Voroshilov mine in Kuzbass. Reference marks installed normal to the bedding plane in roof and floor rocks were measured over three months as the shield fac…
This paper reviews anchor support as an alternative to timber and conventional prop support in coal, ore, and tunnel workings. It explains the operating principle of rock bolting, compares wedge-slot, expansion, wooden, and reinforced-concrete anchors, and discusses installation procedures, spacing,…
This paper addresses the absence of a coherent classification for crib breaker supports used in mine stoping operations and roof control. It reviews existing groupings and argues that material, weight, resistance, yield, and plan shape are insufficient as primary criteria because they do not consist…
This paper reports field investigations carried out in 1954 to 1955 on two long-burning waste rock dumps at the Stalin Mine in Kuzbass, with the aim of characterizing internal combustion zones and associated gas emissions. The authors describe a measurement program using pyrometers, inert thermomete…
This paper investigates the initial methane emission rate of coal from the outburst-prone Kharakterny seam at the Koksovaya-2 mine in the Kuznetsk Basin. Using laboratory measurements of the conditional gas-emission index ΔP on samples from disturbed and undisturbed seam bands, the study compares ga…
This paper examines the economic determination of spacing between ventilation boreholes during the driving of long horizontal blind mine workings. It compares two ventilation schemes, one using a fan installed at the start of the working with an increasingly long pipeline, and another relocating ven…
The paper develops a theoretical method for calculating elongated blasting charges with reduced throw and loosening action. It argues that, for geometrically similar detached rock bodies of arbitrary shape, the specific detachment surface and the specific area subject to air-column pressure vary inv…
This paper investigates how to establish rational operating modes for column-type electric rotary drills used to drill blastholes in the sandy and sandy-clayey rocks of the Prokopyevsk coal deposit. Based on underground experiments with EBK-2M drills, varying spindle speed, feed per revolution, axia…
This paper addresses the need for an objective drillability classification for rocks in the Prokopyevsk coal deposit, where existing Kuzbass categories were based mainly on external descriptions and led to unreliable standardization of blasthole drilling. Drawing on microscopic examination, measurem…
This paper studies a two-stage automatic telephone switching system with losses operating in a free-search mode, with independent Poisson call streams and exponentially distributed holding times. The system is modeled as a finite continuous-time homogeneous Markov process whose states record the num…
The paper addresses the determination of level height when mining closely spaced, steeply dipping coal seams, a design parameter affecting production continuity, labor productivity, and mining cost. It critiques existing geometric formulas and variant approaches for insufficiently accounting for coa…
This paper addresses the engineering problem of locating a field drift for mining groups of closely spaced steeply dipping coal seams, particularly under conditions of deeper mining and panel preparation. It identifies the principal geological, geometric, transport, and economic factors affecting dr…
The paper examines how to determine near-horizon and limiting stripping ratios for the design of open-pit mine boundaries. It derives analytical expressions for near-horizon external stripping coefficients from geometric considerations, identifies simplified formulas for particular deposit geometrie…
This paper addresses the problem of determining optimal final contours for open-pit mines under complex geological and topographic conditions, especially where both open-pit and underground extraction may be possible. It criticizes reliance on a single near-horizon stripping ratio and proposes an it…
The paper examines how to choose between caving and stowing as methods of rock-pressure control when mining steeply dipping, medium-thickness coal seams at the Prokopyevsk-Kiselevsk deposit. It critiques existing Donbass-based classifications as insufficient for local conditions and for shield minin…
The article develops a method for justifying the design production capacity of a coal mine in deposits treated as having unlimited reserves, extending earlier work on deposits with limited reserves. Using the Zenkovo deposit in the Kuzbass as an example, it derives cost and income functions that rel…
This paper addresses the coordination of stoping intensity with the preparation and development of chambers in room-and-pillar mining of steeply dipping thick ore deposits. It develops calculation formulas relating chamber productivity to ore reserves, extraction parameters, the number of chambers m…
This paper examines the possible use of glued wooden panel floor structures in underground coal mining as a substitute for conventional lagging and round timber supports. Drawing on existing research on glued timber structures and preliminary strength, material consumption, labor, and cost calculati…
This paper presents a simplified derivation of virial expansions for nonideal gases in both classical and quantum statistics. Starting from the grand canonical expansion in powers of activity, it uses Cauchy’s theorem and residue methods to invert the density activity relation and obtain the general…
This paper examines methods of supplying shot to the bottom of exploratory boreholes and argues for periodic feeding in small portions as practiced in the Altaitsvetmetrazvedka trust. Drawing on production records, comparative examples from several geological prospecting parties, and time-motion obs…
This paper analyzes coal mine field exploration methodology in the Prokopyevsk-Kiselevsk district of Kuzbass by comparing results from different exploration stages with mining data where available. It classifies fields into three structural types according to fold and fault complexity, examines how …
This paper examines the tectonic structure of the comparatively less studied western part of the Prokopyevsk district in the Kuzbass coal basin, where complex deformation strongly affects coal exploration and mining. Using materials from regional geological work, mine geological services, and the au…
This paper examines settlement of structures founded on loess-like loams in the Kuzbass, where wetting of macroporous soils had produced rapid and uneven deformations in industrial and civil construction. Laboratory compression tests on undisturbed loam samples are used to show that collapsibility v…
This paper presents a hydrogeochemical method for prospecting non-ferrous metals and selected rare elements in areas where conventional geological methods are hindered by cover, difficult terrain, or blind mineralization. The authors develop and test a field procedure for concentrating trace metal i…
This paper investigates the role of dehydration in the crystallization and habit formation of epsomite and mirabilite from supersaturated aqueous solutions. It presents a volumetric-thermal method based on precise measurements of system temperature and volume during crystallization, combined with vi…
This paper examines contact metasomatic formations associated with the iron ore deposits of the Krasnokamensk group in the Eastern Sayan, where Cambrian sedimentary and volcanic rocks were altered around a granitoid intrusion. On the basis of field relations, drill core observations, petrographic de…
This paper describes a rare-earth-bearing epidote discovered in a quartz-carbonate vein in the endocontact zone of a granodiorite massif in southeastern Altai. Based on field relations, petrographic observations, goniometric measurements, physical and optical determinations, chemical analysis, and s…
This paper describes smolyaninovite from a cobalt deposit in the Gorny Altai and compares it with the mineral previously described from cobalt arsenide mineralization. Based on field relations, microscopic observations, X-ray powder data, thermal analysis, spectral study, and chemical analysis, the …
This paper examines the gold-bearing placers and probable primary gold sources on the southwestern slope of the Kuznetsk Alatau. On the basis of placer sections, valley gradients, terrace relations, and morphological types of placer gold, it argues that gold transport during deep valley erosion is r…
This paper describes boron mineralization in the Izekiyul River area on the eastern slope of the Kuznetsk Alatau, where Proterozoic marbled limestones and Cambrian volcanogenic sedimentary rocks are cut by diorite, monzonite, and syenite intrusions. Based on field observations, mineral associations,…
This paper presents a mineragraphic study of sulfide ores from the Ursk group of deposits in Salair, based mainly on drill-core material collected in 1953 and supplemented in 1955. It describes ore textures and mineral assemblages, emphasizing massive and disseminated pyritic ores, relict banding fo…
This paper examines the Devonian magmatic complex in the area of the Irbinsk iron ore deposit in southern Krasnoyarsk Krai, where intrusive rocks are genetically associated with major contact metasomatic iron ores. Using field relations, petrographic descriptions, mineralogical data, and comparisons…
This paper reports new paleontological and stratigraphic observations from Cambrian deposits on the right bank of the Tuba River in the southwestern Eastern Sayan. Based on 1955 field collections from the Malaya Irba, Moiseevka, and Shilovka areas, it describes trilobite and associated fossil finds …
This paper examines the Jurassic coal-bearing deposits north of Anzhero-Sudzhensk, including the Katat brown-coal deposit, and proposes a stratigraphic division based on lithology, heavy-mineral assemblages, thickness trends, and paleobotanical evidence. The section is divided into lower, middle, an…
This paper reexamines the age and stratigraphy of sedimentary and metamorphic deposits around Lake Igerkul and Son Station on the northeastern margin of the Batenev Ridge, where earlier interpretations were hindered by complex structure and limited fossil evidence. On the basis of regional and detai…
This paper reassesses the stratigraphy of the oldest unmetamorphosed rocks of Gorny Altai and the position of the upper Precambrian boundary using new geological survey data and comparison with earlier schemes. It describes a thick nonmetamorphic Precambrian succession in the Katun and related uplif…
