Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams
The spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams are investigated to understand the correlation between the dynamic growth of overburden fissures in the mining of shallow thick coal seams and their gas conductivity. Theoretical analysis, numerical simulation and on-site measurements were combined for the mining of shallow thick coal seams in the Chuancao Gedan Mine. The results revealed that ground fissures with dynamic changes were observed periodically as the coalface moved forward. Dynamic changes of the horizontal fissure opening and vertical deformation related to the instability motion of the loading key stratum in the overburden were observed. The coalface mined-out area was divided into the fissure initiation, fissure propagation and fissure closure zones based on the changes in the horizontal opening and the vertical deformation of adjacent rocks in the overburden.
Spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams
The spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams are investigated to understand the correlation between the dynamic growth of overburden fissures in the mining of shallow thick coal seams and their gas conductivity. Theoretical analysis, numerical simulation and on-site measurements were combined for the mining of shallow thick coal seams in the Chuancao Gedan Mine. The results revealed that ground fissures with dynamic changes were observed periodically as the coalface moved forward. Dynamic changes of the horizontal fissure opening and vertical deformation related to the instability motion of the loading key stratum in the overburden were observed. The coalface mined-out area was divided into the fissure initiation, fissure propagation and fissure closure zones based on the changes in the horizontal opening and the vertical deformation of adjacent rocks in the overburden.
Spatio-temporal distribution and gas conductivity of overburden fissures in the mining of shallow thick coal seams
Li, Jianwei (Autor:in) / Liu, Changyou (Autor:in)
European Journal of Environmental and Civil Engineering ; 23 ; 1019-1033
03.08.2019
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Study on Overburden Strata Rupture Development Height Rules in Repeated Mining of Thick Coal Seams
| British Library Conference Proceedings | 2012
| British Library Conference Proceedings | 2012