Design and application of supporting for the stand of concrete -filled steel tube
Abstract：New east flank belt lane and orbit lane of - 450m horizon in east - one working area of Dashu county mine in Jizhong Energy Fengfeng Group are both in the region of stress concentration, and below the mining - stopped protecting coal pillar of 172102 working face. The wall rock of the premining orbit lane is distorted significantly, marked by shrinking section, serious floor heave, broken anchor cable and destroyed steel stand of U ＇ shaped. Stand supporting of concrete - fined steel tube is used in the new - mined belt lane and its principle, charicteristic and ability of supporting, as well as its plan design and technological processes are introduced. At present, the stand has been in use. According to the monitoring result of stand load, the stand is in good order and the lane is stable.
Keywords：the region of stress concentrationstand of concrete - filled steel tubesupport
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 50-54 )