基于Marzars损伤模型的胶结充填体合理强度确定  

Determination of reasonable filling body strength based on Marzars damage model

作　　者：刘龙琼[1] 闵忠鹏[1] 杨准[2] Liu Longqiong Min Zhongpeng Yang Zhun(Changchun Gold Research Institute Jiangxi Jinshan Mining Industry Co.,Ltd., China National Gold Group Corporation)

机构地区：[1]长春黄金研究院 [2]中国黄金集团江西金山矿业有限公司

出　　处：《黄金》2017年第5期39-42,共4页Gold

基　　金："十二五"国家科技支撑计划项目(2012BAB08B03)

摘　　要：为了研究金山金矿不同灰砂比的尾砂胶结充填体破坏规律,运用损伤力学理论,建立了不同灰砂比的尾砂胶结充填体压缩损伤本构模型。采用采场采矿后的岩体释放能量逼近胶结充填体峰值变形能原则,结合金山金矿条带式充填采矿法试验采场的具体位置、地应力、采场结构参数,确定了尾砂胶结充填体的强度,为尾砂胶结充填参数的确定提供理论依据。A constitutive compression damage model of tailings cement filling body with different ash-sand ratios is established based on damage mechanics theory in order to study the destruction rules of tailings cement filling body with different ash-and ratios in Jinshan Gold Mine. Based on the fact that the energy release from rocks after mining is approximate to the peak deformation energy of the cement filling body, and with the specific location, stress and struc-tural parameters of the experimental stope in stripped filling and mining method of Jinshan Gold Mine, the tailings ce-ment filling body strength is determined. The research provides the basis for the determination of filling parameters for tailings cement filling.

关 键 词：条带式充填采矿法 尾砂胶结 充填体强度 本构模型 损伤模型 岩体匹配 

分 类 号：TD853.34[矿业工程—金属矿开采]