The analysis of stress-strain state near excavations was carried out in this work as applies to coal and salt deposits. The indirect boundary element method was used as a tool of research.
The analysis of stress-strain state near excavations and influence of goafs on its redistribution were carried out in this work as applies to coal and salt deposits. The indirect boundary element method was chosen as a tool of research.
The natural stress-strain state of mining massif is disrupted while mining works is carried on. Different numerical methods can be applied for calculation of parameters stress and strain state in the mining massif: the finite difference method, the finite-element method, the boundary element method, the application of the last of these methods is described in this work. The influence of technological removing schemes on stress strain state of rock massif was analyzed as applied to Starobinsky deposit on the attenuated stage of mining.
The natural stress-strain state of mining massif is disrupted while mining works is carried on. Different numerical methods can be applied for calculation of parameters stress and strain state in the mining massif: the finite difference method, the finite-element method, the boundary element method, the application of the last of these methods is described in this work. The problem of distribution strains around entries of different configuration, drifted in elastic, homogeneous, isotropic mining massif is described. The indirect method of fictitious stresses and the boundary integral method are used for solution this problem.
Проектирование и строительство шахт, горных выработок и возведение подземных сооружений на большой глубине в различных горно-геологических условиях - сложные процессы, связанные с анализом параметров напряженного и деформированного состояния в выработках. Существует множество различных методов определения геомеханических параметров. Основными методами определения напряженного и деформированного состояния являются геологоразведка, инженерная физика, экспериментальные исследования, механика сплошной среды.
The influence of various factors on the condition of the edge zone of the coal seam ahead of the face during the development of flat seams is assessed. All the variety of factors can be divided into mining-geological and mining-technical. Of mining-geological factors, the greatest influence on the coal deformation in the peripheral zone have such factors as power, depth of development, dip angle, presence of interlayers, of mining-technical - face length, speed of its movement, development system, type and power characteristics of the support, method of rock pressure control.
