锚杆布置对岩石锚固体承载力影响的数值试验

摘要

在探讨岩石锚固机理和计算模型基础上,提出了锚固岩石的承载力的三维数值试验方法,采用速度边界控制加载,进行了不同密度、不同数量、不同布置方向的锚杆的条件下岩石承载力的数值试验,并得出了承载力变化规律。%Based on the exploration for the mechanism for the rock anchorage body and the calculation model,the paper points out the three-dimensional numerical experiment methods for the loading capacity of the anchorage body,adopts the speed boundary control loading to undertake the numerical experiments on the rock＇s loading capacity in the various densities,the amounts and the anchors with various directions,and concludes the change law for the loading capacity.