【摘要】 介绍了采集力学参数、建立计算模式的有效方法,应用有限元结构分析软件ALGOR实现分别建立、统一联接(COMBSST)生成了支护与围岩相互作用的三维有限元模型,分析了模型各结点的位移及受力情况,计算了巷道围岩变形;又应用灰色系统理论对围岩未来力学行为及可能出现的破坏进行了预报,并对灰色模型的建模条件和预报精度作了分析比较;为巷道支护设计和围岩控制提供了理论依据。更多还原

【Abstract】 The effective methods of collecting stone mechanical parameters and establishing calculation model were introduced. Three dimension finite element model of interaction between support and enclosing rock was built in terms of the method of separate establishment and united combination (COMBSST) with the software ALGOR in finite element construction analysis. Every node’s displacement and stress of the model was analyzed and tunnel enclosing rock’s deformation was calculated. Enclosing rock’s future mechanical behavior and probable damage were forecasted, in the light of gray-system theory; meanwhile, modeling condition and prediction’s precision of gray models were analyzed and compared. Theory foundation is provided for underground support design and enclosing rock control.更多还原