| This paper based on the theory about engineering geology and the rock mechanics. It studied the engineering geology condition of the Heigou mine-field of JISCO. By the abundance of basic data with investigates and lab experiments, It estimated and analyzed the stability of the side slope of the Heigou mine-field with many research methods that included 'the ultimate balance', 'the discrete cell' and 'the FEA'. Besides these, it gave same advice about analogous engineering in order to offer certain evidence for the later management of Heigou mine-field and for the engineering blasting design.
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