bodemonderzoek geo electric voor coal mining

اترك رسالة

In-mine geoelectric investigations for detecting tectonic disturbances in coal seam structures

The methods of in-mine seam-sounding and transillumination (geoelectric tomography) for the detection of tectonic disturbances of coal seams were developed by the Department of Geophysics of the ...Faults and folds are the main geological structures, and their existence in the coal mining area will seriously threaten the safety of coal mining [1,2,3].Quantitative evaluation of mine fault and fold complexity is of great significance for the control of mine water hazards, the optimization of mining operations and the reduction of invalid drilling footage, which contributes to more safely ...Quantitative Analysis and Evaluation of Coal Mine Geological ... - MDPICoal is a black or brownish-black sedimentary rock that can be burned for fuel and used to generate electricity. It is composed mostly of carbon and hydrocarbons, which contain energy that can be released through combustion (burning). Coal is the largest source of energy for generating electricity in the world, and the most abundant fossil fuel ...Coal - National Geographic Societyاحصل على السعر

Minerals | Free Full-Text | Applied Methodological Approach for the ...

In the case of coal mining, the production of 1 ton of coal ore generates 0.3 tons of coal mine waste rocks (CMWR) [16,17]. The mineralogical composition of CMWRs is commonly rich of sulfide-bearing minerals which are responsible for acid mine drainage (AMD) generation due to atmospheric oxidation [ 17 , 18 ].Locating concealed geological structures in coal seams on both sides of a coal mine excavation roadway is of vital importance for safe production. Conventional electrical resistivity imaging methods mostly arrange observation systems on the roadway roof and floor, so they are inevitably deficient when it comes to detecting concealed geological structures in coal seams. According to the ...Application of electrical resistivity imaging to detection of hidden ...Coal mine goaf detection remains confronted with the lack of fast, effective and low-cost exploration means, especially for the accurate prediction of mining threats primarily caused by hydraulic infiltration. The rapid popularization of passive electromagnetic methods has contributed greatly to improving the interpretation effects of different types of goafs. This paper, firstly, summarizes ...Minerals | Free Full-Text | Coal Mine Goaf Interpretation: Survey ...احصل على السعر