隧道富水段围岩变形特征及控制技术分析

Analysis on Deformation Characteristics and Control Technology of Surrounding Rock in Water-rich Section of Mountain Tunnel

山区道路工程会遇到很多施工难点,如在富水条件下,砂岩地层隧道开挖极易导致围岩变形。本文以揭惠高速小北山一号隧道富水段围岩变形段为研究对象,首先介绍该工程隧道的概况和围岩地质状况,通过数据模拟方式,深度研究富水段围岩变形特征,提出围岩变形控制方案和控制重点,且针对围岩大变形提出了整治措施。

There are many construction difficulties in road engineering in mountainous areas.For example,tunnel excavation in sandstone stratum under the condition of rich water is easy to produce deformation of surrounding rock.Taking high-speed small Jie hui beishan rich water section of the tunnel surrounding rock deformation section as the research object,this paper firstly introduces the general situation of the engineering tunnel and the geological condition of surrounding rock,then conducts in-depth study of rich water segment deformation characteristics of surrounding rock through data simulation,put forward the control scheme and control project concerning deformation of surrounding rock,and put forward corresponding measures concerning the large deformation of surrounding rock regulation.