- The results show that there is bigger influence of coal extraction on caking property.
- Our factory is located in E'nan is Chongyang joint-stock joint venture, professional to stone coal extraction of vanadium pentoxide.
- In the meantime, the data of geodetic measurement, geological investigation and test are also analyzed, and the analytic results show that the local motion of Fushun segment on Hunhe fault is caused by coal extraction.
- During mine development and coal extraction, it is unavoidable to approach and disclose or touch the aquifers (water body).Mine water flood has been one of the biggest hidden troubles of accidents.
- According to the complex condition of deep excavation in Xinji Mine, FLAC program was carried out for strata movement and surface displacement due to coal extraction by different mining layouts.
- Special when coal extracts, many dissociate often is contained in ledge 2 oxidation silicon, can be as high as 40 % sometimes.