Landwall Mining Method Design Options
Added on 2020-02-24
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REPORT ON THE DESIGN OPTIONS OF LANDWALL MINING METHOD PART 1: RISKS ASSOCIATED WITH LANDWALL MINING The mining options presented have got a myriad of challenges such as risk factors that must be analyzed during establishment of standard operating procedures. Admittedly, risks associated with each mining option have unique characteristics such as accidental collapse of the roof in areas where reinforcements are not done properly. The cross deep shaft method is often associated with this kind of risk as the shafts are sunk relatively deeper. Due to the overbearing weight of the earth movers and the vibration of the machines, areas prone to earth quakes may betriggered off. The geologists must therefore competently analyze the data from the area using modern sophisticated tools and software. The identified hotspots must therefore be avoided at all costs. Improper and insufficient training of all workers can also be a potential source of problems. The inexperienced crane operators and drivers may cause damage to people and properties as they tryto navigate the terrain during mining. The entire system of mining must therefore take into consideration the complex routing of the machinery and equipment to minimize on backtracking and unnecessary collisions. Some mines have weaker rocks which could cave in during operation. It is therefore often required that once an area is depleted, the remnants must be cleared off. The belt transect methodwill come in handy in this case. The wall destabilizers are therefore useful for this purpose. Notably, the proposed designs aim at maximizing the extraction potential while at the same being cognizant of the fact that safety and costs are equally critical aspects in the operation. Methane gas emissions Expectedly, in the course of extraction of coal gaseous releases via the rock crevices is a common phenomenon. On such dangerous gas is methane. It is harmful to humans as it can cause suffocation and even fatal injuries if not managed properly. The design so presented will amicably handle the emission by ensuring that ventilators are provided for smooth exchange withair from outside. However, this will require extra cost towards its facilitation. Acid mine drainage Chemical reactions ensue immediately the rocks are set lose. The rocks contain various chemicalcompounds which would then be mixed with the mining remnant to result into compounds such as carbonates. These carbonates would find themselves dissolved in the underground water reserves and in the rainwater. Ultimately, acidic conditions are compounded in the mine which affects both fauna and flora. For example, the soil pH is drastically lowered resulting into lower yields for agricultural lands. Respiratory problems (health risk)As mentioned earlier, the gaseous releases from the mines pose greater health risk to the workers. It is intimated that inhaling methane gas is more dangerous than carbon monoxide
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