摘要
以申南凹矿1021—20采场为模型,运用FLAC3D有限差分数值计算方法进行了数值计算,模拟分析了一次采动影响下30 m矿柱和20 m矿柱回采巷道围岩的应力分布、位移变化和塑性区分布,并对采动超前影响范围进行了模拟。通过现场监测、数值分析认为申南凹矿回采巷道的地压显现与围岩破坏与采场相似。
The mining field of Shennan 1 021—20 as a model is used,and used the FLAC3D finite difference numerical calculation methods.Then the stress distribution,displacement and plastic zone of roadway rock are simulated and analyzed under the influence of the first mining 30 m and 20 m pillar,the affected areas of mining advanced is also simulated.That ground pressure appearance of Shennan extraction roadway can be seen,rock destruction is similar to stopping through field test and numerical analysis.
出处
《科学技术与工程》
2011年第15期3407-3412,共6页
Science Technology and Engineering
