FLAC3D用于充填模拟分界面力学特性研究  

STUDY ON MECHANICAL CHARACTERISTICS OF INTERFACE IN FILLING SIMULATION WITH FLAC3D

作　　者：王文哲[1] 杨小聪[1] 郭利杰[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《矿冶》2010年第2期1-4,共4页Mining And Metallurgy

摘　　要：充填金属矿山采空区时,充填体与围岩在接触面上会发生滑动和分离。本文利用FLAC3D的分界面(interface)模拟接触弱面,收到良好效果,并通过试验对比,确定了合理的分界面强度参数。结果表明,在充填区域的顶部和四周同时设置分界面,可得到理想的模拟效果。分界面的刚度很重要,内聚力和内摩擦角对结果的影响很小。Sliding and separation can occur on planes between backfill and wall rock in underground mines. Numerical simulations are carried out to study the weak planes by means of interface in FLAC3D. The reasonable intensity parameters of interface are confirmed by contrast experiments. It works best when interfaces are applied to the sides and top of backfill . The result shows the stiffness of interfaces are key factors in filling simulation, while the effects of cohesion and friction angle on numerical simulation are little .

关 键 词：充填 数值模拟 分界面 FLAC3D 

分 类 号：TD85[矿业工程—金属矿开采] TD313[矿业工程—矿山开采]