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Based on GIS, especially on its spatial analysis function, a case study on the predicting and forecasting of the risk of coal floor water-inrush was practiced in the I-1 mining district in the 5# coal mine in Pingdingshan coal area in this article. The 5# mine of Pingdingshan coal area belongs to the typical Carboniferous-Permian coal mining area which were threaten seriously by the coal floor water-inrush,...
On the basis of engineering geological analysis method, the stability of a certain steel plant foundation in the underlying mined-out area is evaluated. In accordance with the loading concentration of steel plant structures and their importance, a classification is carried out and different grouting treatment measures are used accordingly. Afterwards, XB-160-foot vibrating wire strain gauges and XBHV-10-foot...
Large numbers of cavities formed by underground mining endangers the mine's safety seriously and generates much difficulty for the resource reclamation in domestic mines. Therefore, taking advanced Cavity Monitoring System (CMS) as basic mean, carrying out correlative technologies research and application to overcome these problems in the underground metal mines has become a significant task. The...
In order to study the three dimensional stability of one large underground stope after excavation, the numerical simulation software FLAC3D is used to calculate the deformation and failure situation of the surrounding rock mass. The calculations are done for two cases of whether penetration taking place in the goaf. During calculation the effects of penetration of excavation areas to the stability...
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