现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2012年
3期
26-28
,共3页
最优归类法%岩体质量%模糊多目标决策%数值模拟
最優歸類法%巖體質量%模糊多目標決策%數值模擬
최우귀류법%암체질량%모호다목표결책%수치모의
Optimal classification method%Rock mass quality%Fuzzy multi-objective decision making%Numerical simulation
针对某金矿的地质状况,用模糊最优归类法对失稳巷道进行了岩体质量评价。巷道围岩岩体整体稳定性可以分为3个区域（安全区、危险区、塌陷区）,RQD分别为87%、78%和57%,Rc分别为240.1、137.1和85.4 MPa。通过模糊最优归类法确定了安全区围岩稳定性属于第Ⅲ等级,危险区属于第Ⅲ等级且偏向第Ⅳ等级,塌陷区属于第Ⅳ等级。在此基础上,运用模糊多目标决策方法对危险区和塌陷区的加固方案进行了优化,运用数值模拟计算方法对加固方案进行了验证,并分析了加固效果,为现场施工提供了科学依据。
針對某金礦的地質狀況,用模糊最優歸類法對失穩巷道進行瞭巖體質量評價。巷道圍巖巖體整體穩定性可以分為3箇區域（安全區、危險區、塌陷區）,RQD分彆為87%、78%和57%,Rc分彆為240.1、137.1和85.4 MPa。通過模糊最優歸類法確定瞭安全區圍巖穩定性屬于第Ⅲ等級,危險區屬于第Ⅲ等級且偏嚮第Ⅳ等級,塌陷區屬于第Ⅳ等級。在此基礎上,運用模糊多目標決策方法對危險區和塌陷區的加固方案進行瞭優化,運用數值模擬計算方法對加固方案進行瞭驗證,併分析瞭加固效果,為現場施工提供瞭科學依據。
침대모금광적지질상황,용모호최우귀류법대실은항도진행료암체질량평개。항도위암암체정체은정성가이분위3개구역（안전구、위험구、탑함구）,RQD분별위87%、78%화57%,Rc분별위240.1、137.1화85.4 MPa。통과모호최우귀류법학정료안전구위암은정성속우제Ⅲ등급,위험구속우제Ⅲ등급차편향제Ⅳ등급,탑함구속우제Ⅳ등급。재차기출상,운용모호다목표결책방법대위험구화탑함구적가고방안진행료우화,운용수치모의계산방법대가고방안진행료험증,병분석료가고효과,위현장시공제공료과학의거。
According to the geology of a gold deposit,rock quality evaluation was done on unstable tunnel by using fuzzy optimal classification method.The stability of surrounding rock mass of tunnel could divided into three zones： safety zone,dangerous zone and unstable zone.The RQD was 87%,78% and 57%,respectively,Rc was 240.1、137.1 and 85.4MPa,respectively,Fuzzy optimal classification method confirmed that surrounding rock mass stability at safety zone was Ⅲ.And dangerous zone was between Ⅲ to Ⅳ and unstable zone was Ⅳ.On the basis of this,reinforcement scheme of dangerous and unstable zone were optimized by using fuzzy multiple objectives decision making,and it was verified by using numerical simulation method.The reinforcement effect was analyzed.It can provide a certain scientific basis for further field construction.
