Assessment of top coal fall potential is great importance for sustainable longwall caving mining. However, available assessment tools/indices the are applicable to roof rock only, and their use (whose geological structures may be different) can inappropriate. This paper presents a new index in mining where controlled by cantilever effect. The developed from an integrated numerical statistical a...

SAR Interferometry is a method that allows to measure land subsidence on radar coherent areas with high precision. This method can measure displacements of the terrain surface smaller than one centimeter. A very important feature of the method is that since the SAR data are acquired frequently it is possible to use archived data to measure deformations over the last fifteen years for almost any...

The effective discrimination of aquiclude mining stability is one the important indexes for feasibility judgement water-conserved mining. Based on mining-induced deformation characteristics weakly cemented and water level change aquifer in northwest China, a mechanical model established, instability criterion its influencing factors are analyzed. results show that has strong plastic ability mai...