考虑岩石扩容性的洞周弹脆性收敛线的确定

Determination of the Elastic - Brittle Convergence Line of Opening Periphery Taking Ac-count of Rock Dilatancy

岩石扩容是岩石的基本力学性质之一，本文提出了考虑岩石扩容性的洞周弹性收敛线的确定方法。实践证明，与其它方法相比，该方法得到的洞周收敛线更符合实际情况。

Dilatancy is one of the basic mechanical properties of the rock, in thispaper, a method for determining elastic - brittle convergence line of opening peripherytaking account of rock dilatancy is proposed. It is shown that compared with the conver-gence lines determined by other methods, this convergence line is more consistent with theengineering practice.