青兰高速公路鼓山隧道施工技术

Construction Technology of Gushan Tunnel for Qing-Lan Expressway

青兰高速(邯郸至涉县段)鼓山隧道属于三车道大跨度扁平隧道,围岩地质情况复杂,施工难度大,安全风险高,工期紧。通过超前大管棚进洞和建议性双侧壁导坑法、建议性单侧壁导坑法以及传统的台阶法等不同开挖方法,通过监控量测数据分析做保证,顺利完成施工任务,确保施工安全及质量。

Gu-shan tunnel for Qing-Lan high-speed highway（at the section from Handan to Shexian） is a three-lane flat tunnel with a large span.The geological condition of rock is complex for the tunnel.The construction is difficult and the risk of safety is high.In addition,the time limit of construction is tight.The tasks of construction were finished smoothly with the methods of advance large tube ceiling hole injection,suggestive double wall pilot tunnel,suggestive single wall pilot tunnel and traditional bench,and construction safety and quality was ensured through monitoring of data.