Results 41 to 50 of about 140,971 (281)

Ecological aspects of managing the stressed- deformed state of the mountain massif during the development of multiple coal layers [PDF]

, 2018
The ecological consequences of long-term development of coal deposits for the components of the environment, buildings, communications and infrastructure facilities have been analysed.
Borysovska, Olena, Buzylo, Volodymyr, Pavlychenko, Artem, Savelieva, Tamara, бор, Бузило, В. И., Бузило, В. І., Бузило, Владимир Иванович, Бузило, Володимир Іванович, Павличенко, А. В., Павличенко, Артем Владимирович, Павличенко, Артем Володимирович   +11 more
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Особливості формування техногенних родовищ вапняку [PDF]

, 2013
Segregation laws become important in the formation of man-made deposits. The theoretical basis of the physical mechanism of the phenomenon of segregation of the rock mass in the formation of dumps and the storage of minerals or finished products in the
Strilets, O., Pchelkin, G., Mekshun, M.
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Key Stratum Structure and Support Working Resistance of Longwall Face with Large Mining Height in the Shallow Coal Seams, China [PDF]

Advances in Civil Engineering, 2020
The fully mechanized mining with large mining height is the main method for high yield and efficient coal mining in China. The key stratum structure (KSS) is the basis of revealing the mechanism of roof weighting and determination of support working resistance of the longwall face with large mining height (LFLMH) in the shallow coal seam. The height of
Qingxiang Huang, Jinlong Zhou, Jian Cao
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Implementation of probabilistic approach to rock mass strength estimation while excavating through fault zones [PDF]

, 2019
Purpose. The paper addresses the rock mass state estimation while excavating a cross-heading through the area of regional fault “Bohdanivskyi” based on probabilistic approach to assessing the rock strength. Methods.
Babets, D, Cabana, E.C., Kravchenko, K, Sdvyzhkova, O, Shashenko, O   +4 more
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Rheology effect determination of the heterogeneous rock massif on the stress-strain state of the breakage face geomechanical system [PDF]

, 2018
The purpose of this study is to determine the nature of influence of the rheological properties of the rocks on the results of computational experiments simulating the mine workings contour condition during the breakage face advance. To
Fomychov, Vadym, Fomychova, Liudmyla, Lapko, Viktor, Pochepov, Viktor, Почепов, В. М., Почепов, В. Н., Почепов, Виктор Николаевич, Почепов, Віктор Миколайович, Фомичев, В. В., Фомичев, Вадим Владимирович, Фомічов, В. В., Фомічов, Вадим Володимирович   +11 more
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Interaction of deformation-strength characteristics of the support load-bearing elements in the preparatory workings [PDF]

, 2018
The objective of this work is to study the relationship of the deformation-strength characteristics of the fastening system with its displacement value. The tendencies of influence are divided into two groups.
Barabash, Mykhailo, Husiev, Oleksandr, Kovalevska, Iryna, Snihur, Vasyl, Ковалевская, И. А., Ковалевская, Ирина Анатольевна, Ковалевская, І. А., Ковалевська, Ірина Анатоліївна   +7 more
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Overlying rock movement and mining pressure in a fully mechanized caving face with a large dip angle

Frontiers in Earth Science, 2022
The overlying rock movement and mining pressure in the fully mechanized caving face with a large dip angle were systematically investigated according to theoretical analysis, similar material simulation, numerical calculation, and field monitoring.
Ying Chen, Ying Chen, Zhiwen Wang, Qianjia Hui, Zhijie Zhu, Dequan Sun, Dequan Sun, Yang Chen, Xiufeng Zhang, Zhaoyi Wang, Jian Wang, Jian Zhao   +11 more
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Present situation of support technology and equipment in fully mechanized mining face with supermining height

Meikuang Anquan
One-time full-thickness mining with ultra-high mining height has the characteristics of high mining efficiency and high resource recovery rate. In order to explore the further breakthrough of ultra-high mining height fully mechanized mining technology ...
Huijun HAN, Guofa WANG, Mingzhong LI, Jinhu ZHANG, Yanpeng LI   +4 more
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Method for calculation of drilling-and-blasting operations parameters for emulsion explosives [PDF]

, 2019
Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well as physical and mechanical ...
Khomenko, O, Kononenko, M, Kovalenko, I, Savchenko, M   +3 more
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Geodetic and seismological observations applied for investigation of subsidence formation in the CSM Mine (Czech Republic) [PDF]

, 2018
Purpose. Undermined areas are affected by the creation of subsidence depressions due to long-term underground mining. In general, different geodetic methods are applied to obtain further information needed to determine the spatial development of the ...
Kajzar, V
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