2017
DOI: 10.1016/j.proeng.2017.05.188
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Investigation of Geomechanical Features of the Rock Mass in Mining of Two Contiguous Deposits under Tectonic Stresses

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Cited by 9 publications
(3 citation statements)
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“…However, taking into account an increased density of heat flow in the Khibiny and Lovozero massifs [141] with regard to the enclosing rocks, it is possible that some part of FGs can permeate from the roots of these massifs, in which the conditions may be favorable for the current formation of gas by any of the above-assumed mechanisms. Considering the similarity in chemical and isotope compositions of carbon and hydrogen of gases of various morphological types, specific features of their localization and emission, modern geodynamic and seismic activity of the massifs [90,142], and the possibility of a new formation for HCGs (e.g., [143]) and particularly Н 2 [125,126,144,145] under such conditions, it is believed that free gases in the Khibiny and Lovozero deposits mainly represent a mixture of gases in varying proportions. This mixture includes (a) gases remaining in microfissures (in situ) during the consolidation of the massif after being trapped by fluid inclusions and lost during degassing and (b) gases formed by mechanical and chemical reactions, i.e., partial release and concentration of occluded and diffusely dispersed gases under the conditions of the constantly varying stress and strain state of the rock mass [18,19].…”
Section: On the Origin Of Hhcgs In Nepheline-syenite Massifsmentioning
confidence: 99%
“…However, taking into account an increased density of heat flow in the Khibiny and Lovozero massifs [141] with regard to the enclosing rocks, it is possible that some part of FGs can permeate from the roots of these massifs, in which the conditions may be favorable for the current formation of gas by any of the above-assumed mechanisms. Considering the similarity in chemical and isotope compositions of carbon and hydrogen of gases of various morphological types, specific features of their localization and emission, modern geodynamic and seismic activity of the massifs [90,142], and the possibility of a new formation for HCGs (e.g., [143]) and particularly Н 2 [125,126,144,145] under such conditions, it is believed that free gases in the Khibiny and Lovozero deposits mainly represent a mixture of gases in varying proportions. This mixture includes (a) gases remaining in microfissures (in situ) during the consolidation of the massif after being trapped by fluid inclusions and lost during degassing and (b) gases formed by mechanical and chemical reactions, i.e., partial release and concentration of occluded and diffusely dispersed gases under the conditions of the constantly varying stress and strain state of the rock mass [18,19].…”
Section: On the Origin Of Hhcgs In Nepheline-syenite Massifsmentioning
confidence: 99%
“…В исследовании А. А. Козырева и др. на основе разработанных конечно-элементных моделей выполнены анализ и сравнение двух систем разработки: с подэтажным и этажным обрушением [5]. М. А. Карасевым и Т. Т. Нгуеном выполнена количественная оценка влияния геометрических параметров тоннеля на напряженно-деформированное состояние его обделки.…”
Section: Introductionunclassified
“…Месторождение представлено несколькими рудными телами, вытянутыми в направлении с югозапада на северо-восток на 1,5 км. Его освоение возможно комбинированным открыто-подземным способом для большей полноты извлечения запасов апатит-нефелиновых руд [19][20][21][22][23][24].…”
unclassified