Mathematical Problems in Engineering / 2015 / Article / Tab 1

Research Article

Selection of an Appropriate Mechanized Mining Technical Process for Thin Coal Seam Mining

Table 1

Technical comparison of MMTPs.

MMTPAdvantagesDisadvantages

ConventionalLower equipment investment; simple technology; high maturityHigh labour intensity; poor man-machine environment

End-controlled Liberating operators of shearerPoor adaptability

Manual subdivision controlled Lower equipment investment; reducing labour intensityAdding several operators in site; lower safety degree

Automatic subdivision controlled Liberating operators of shearerAdding one operator in site; higher automated equipment investment; very poor adaptability

Presetting trajectory cuttingLiberating operators of shearer; high adaptabilityHigh exploration input before mining; lower maturity