The Key Technology of Construction of Vertical Shafts in the Section of Biotite Granulite in Fenghuangshan Iron Mine
MA Er-kang
ZHANG Kun
ZU Yu-xi
Abstract：In the period of construction of shaft bedrock in Fenghuangshan iron & Dongfeng mine ,for the problem of slow running of the construction of vertical shafts which coursed by hard rocks ,frac-ture development ,poor aquifer of biotite granulite. On the basic of analyzing the characteristics of rock geological and hydrogeological ,using mixed high holding and large template mechanization construc-tion method in the section of biotite granulite. For overcoming the hard rock ,controlling water effec-tively ,improving blasting effects in the process of construction of shaft in Fenghuangshan iron mine , a new method was proposed.
Keywords：biotite granulitehard rockwater controlshaft construction
Publication Date：2015-10-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 15-18 )