高地应力下板岩隧道施工工法探讨

Discussion on Construction Method of Slate Tunnel under High Ground Stress

在高地应力作用下,三叠系下统板岩隧道存在收敛变形大的特征,针对此特征探讨不同施工工法的可行性;在确定工法的基础上,阐述了控制隧道施工变形的要点.

Under high ground stress,there exists a large convergence deformation feature in slate tunnel under Lower Trias,to explore the feasibility of different construction method for this fea-ture;Based on the determined construction method,explained the main points of the tunnel con-struction deformation control.