Tag: coal mining

Laboratory tests showed that treating coal gangue backfill containing 20 percent biomass ash with Bacillus pasteurii raised compressive strength by ...

A comprehensive review documents how China's coal mining science and technology has reached world-leading drilling depths, 10-meter mining heights and ...

A rotary mechanical system removes passivating mineral layers from limestone, restoring its reactivity for treating acid mine drainage from coal ...

A new numerical study shows that in-situ stress ratio, bedding dip angle and hydromechanical coupling jointly control excavation damage and ...

A coupled numerical simulation shows coal mining beneath uranium-bearing strata can raise aquitard permeability by two orders of magnitude, allowing ...

A study at Hujia-ta Coal Mine combined physical simulation, microseismic monitoring, and numerical modeling to map asymmetric overburden fracture growth ...

A fractal-based study of three waste dumps at China's Antaibao coal mine finds that micro-topographic complexity significantly shapes the spatial ...

A study at Chaigou Coal Mine found that cutting the roof to 100 meters above an extra-thick coal seam reduced ...

Field monitoring in Inner Mongolia's coal mining region reveals that land subsidence shifts freeze-thaw timing and reorganizes the nonlinear coupling ...

A field-validated study at Fenghuangtai Coal Mine reveals that mining-induced fractures form a saddle-shaped network whose dominant groundwater channels concentrate ...