Sentence examples for underground workings from inspiring English sources
Previous work on the geochemistry of ground water in the underground workings of the Penn Mine indicated that sulfate reduction is likely to be occurring [28, 29].
The underground development face blasts were also optimised for the safety and stability of underground workings.
A professional engineer certified design is required for impounding structures and the location of underground workings in relation to them.
In the deep coal mines, there are many hazards in underground workings and on the surface around mining plants.
Most of the pyrite oxidation and subsequent iron hydrolysis to iron hydroxide occurred in the underground workings.
While many geophysical methods have been developed for ground characterizations, their accuracy is insufficient for customized ground support design of underground workings.
It also adjusts the climate in the underground mine workings, and consequently establishing a good working environment (Sui et al. 2011).
The operator also has to report whether there will be any discharges into underground mine workings or whether ground water is being pumped out of the mine.
The molecular biology of sediments and cultures was studied to determine whether sulfate-reducing bacteria (SRB) were active in moderately acidic conditions present in the underground mine workings.
In a recent study, Roesler et al. [24] report low levels of aqueous sulfide at circum-neutral pH in certain flooded underground mine workings of Butte Montana.
Lead was once mined on its eastern slopes, resulting in open workings and underground mines.
