共查询到20条相似文献,搜索用时 31 毫秒
1.
S. G. Molotilov V. K. Norri V. I. Cheskidov A. R. Mattis 《Journal of Mining Science》2007,43(1):57-66
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. 相似文献
2.
A. A. Eremenko V. I. Klishin V. A. Eremenko A. P. Filatov 《Journal of Mining Science》2008,44(3):271-282
The authors offer the optional versions of mining methods and technological schemes for mining at Udachnaya pipe reserves
under the opencast bottom. The rational chamber-and-pillar method has been substantiated, considering the complicated mining-geological
and geomechanical condition at the deposit. The economical feasibility of the proposed underground mining variants has been
evaluated.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 55–67, May–June, 2008. 相似文献
3.
A. M. Freidin A. P. Tapsiev V. A. Uskov L. A. Nazarova A. A. Zaporozhtsev M. P. Sergunin 《Journal of Mining Science》2007,43(3):290-299
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. 相似文献
4.
V. I. Cheskidov 《Journal of Mining Science》2007,43(4):429-435
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. 相似文献
5.
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. 相似文献
6.
S. G. Molotilov V. K. Norri V. I. Cheskidov A. R. Mattis 《Journal of Mining Science》2006,42(6):622-627
An analysis is performed into the currently applied coal mining methods using mined-out space in an open pit, with describing
their basic advantages and disadvantages. The urgency of further development and wider application of the gritwise-and-capwise
methods that involve differently directed advance of a mining front and mined-out space utilized to the limit for overburden
storage is pointed out.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 111–118, November–December, 2006. 相似文献
7.
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. 相似文献
8.
V. N. Oparin I. I. Ainbinder Yu. I. Rodionov P. G. Patskevich A. P. Tapsiev A. M. Freidin B. P. Badtiev V. A. Glukhov 《Journal of Mining Science》2007,43(6):646-654
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. 相似文献
9.
K. Holub 《Journal of Mining Science》2006,42(1):15-26
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. 相似文献
10.
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. 相似文献
11.
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. 相似文献
12.
Based on an analysis of the results obtained from calculation of stress state in a rock mass in the vicinity of an open-pit
mining under the action of gravitational and tectonic forces, the causes are substantiated for the technogenic earthquake
in the Tsentralny mine of the “Apatit” Joint-Stock Company.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 11–16, May–June, 2005. 相似文献
13.
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. 相似文献
14.
The necessity to equip cable excavators with rotary buckets is substantiated. The results of graphic-analytical analysis of
the rotary bucket operation are presented, and its main advantages are determined in comparison with conventional buckets
in mining coal seams of complex structure.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 59–99. March–April, 2005. 相似文献
15.
Based on simulated material scale modeling and numerical simulation, the protective seam mining method was conducted at one
coal mine. After extracting the No.15 seam, the overlying strata movement and the deformation of the No.9–10 protected seam
were studied. The experiment results show that it is feasible to destress the protected seams with large interburden thickness.
When the face had advanced 200 m from the setup room, the No.9–10 seam was fully destressed, resulting in easy gas drainage
in the destressed zone. Recommendations on mining sequence of multiple seams mining in the same coal areas were made.
Supported by Ministry of Education Doctoral Foundation (20070460001) and Natural Science Foundation of Henan Province (0623021400) 相似文献
16.
The authors propose a number of modified versions of well-known multicriterion optimization methods and discuss their application
to select an optimal underground chromite mining technique.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No.4, pp. 78–89, July–August, 2008. 相似文献
17.
The large and deeply exploitated quarry district of the Pietra Serena at Fiesole (Florence, Italy) was worked out through,
centuries with no design or any preliminary investigation. In this paper, we characterize the Macigno stratigraphic succession
outcropping in the Fiesole hills in terms of geostructural setting and geomechanical properties. We performed stability analysis
to verify the safety of slopes of open pits and underground openings, as well as retrospective review of the methods to provide
safe environment for Pietra Serena mining.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Polezuykh Iskopaemykh, No. 1, pp. 84–94, January–February, 2006. 相似文献
18.
Mine stability with application of sublevel caving schemes 总被引:1,自引:0,他引:1
A. M. Freidin S. A. Neverov A. A. Neverov P. A. Filippov 《Journal of Mining Science》2008,44(1):82-91
The paper expounds results gained in mathematical modeling of stress state of a rock mass under mining by sublevel caving
with areal-frontal and frontal ore drawing schemes. Stability of underground excavations in the course of applying the compared
methods is evaluated in terms of the Sheregesh deposit. The authors recommend on supporting the openings at the ore drawing-off
level.
__________
Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 90–100, January–February, 2008. 相似文献
19.
20.
以开滦唐山矿Y485工作面受上覆5#煤层采空影响为背景,基于关键层理论,采用数值模拟和现场实测研究了上覆煤层开采后下伏煤层的卸压机理。结果表明:覆岩中往往存在多层关键层,会对工作面支承压力产生影响。卸压开采后上覆关键层发生破断,下伏煤层工作面回采时仅在层间关键层的影响下支承压力的影响范围和峰值显著降低。唐山矿上覆5#煤层工作面回采后,仅在层间关键层的影响下,下伏9#煤层Y485工作面超前支承压力影响范围由73 m减小至38 m,超前支承压力峰值与工作面煤壁的距离由29 m减小至20.5 m。当两煤层间存在厚硬关键层时,开采上覆煤层对下伏煤层进行卸压时,下煤层工作面支承压力峰值的最大值是无关键层时的2.34倍,下煤层回采时仍产生了显著的应力集中。 相似文献