超前地质预报在宝塔山特长隧道中的应用

摘要

以榆平高速公路宝塔山特长隧道为例，依据宝塔山地质勘察资料、相关设计图纸及高速公路规范，对隧道掌子面进行了持续不间断的监控量测，通过可靠的多种超前地质预报方法数据，及时有效的修正围岩的支护参数，并制定应对不良地质的施工预案，以确保整个隧道的施工安全、质量与进度。%Taking Baotashan Super-long Tunnel along Pingyao-Yushe Expressway as the example,the paper has the continuous supervision and control measurement of tunnel working face by referring to the geological survey document,related design mapping and expressway regulation of Baotashan,has the effective adjustment of the supporting parameter of the modified surrounding rock according to reliable multiple data for the advanced geology forecast method,and makes the construction scheme of unfavorable geology,so as to ensure the construction safety,quality and progress of the whole tunnel.