向莆铁路戴云山越岭隧道群工程地质选线

向莆铁路戴云山脉越岭隧道群沿线不良地质发育、地质构造复杂,线位选择的优劣对工程成败影响巨大,推荐地质条件最优的戴云山脉越岭隧道群线位是向莆铁路地质勘察工作的重点和难点。以三维可视化高分辨率遥感解译、大面积地质调绘、高频大地电磁测深等技术为核心的工程地质综合选线贯穿于越岭隧道群工程地质勘察过程的不同阶段,持续不断的比选和优化越岭隧道群线位和隧址。推荐的戴云山越岭隧道群线位和隧址进出口,成功绕避了洞身各种不利构造和洞口不良地质体,隧道群工程地质条件整体良好,合理规避了各类工程风险,施工进展顺利、铁路运营状况良好,社会、环境、技术、经济效益显著。

Geological Route Selection for Daiyunshan Mountain Group Tunnels on Xiangtang-Putian Railway

The Daiyunshan group tunnels of Xiangtang-Putian Railway are located in the rugged mountain area and featured with complex geological conditions and multiple adverse geological phenomena.Reasonable route selection is very crucial to the success of this project and tunnel locations with optimum geological conditions are important and challenging to the geological investigation. Some core technologies such as three-dimensional visualization of high resolution remote sensing interpretation,large regional geological investigation and high-frequency magneto telluric sounding technology were carried out through different stages of geological investigation. The recommended scheme for group tunnels is succeeded to avoid adverse geological phenomena around tunnel body and portal. The route selection for Daiyunshan Mountain group tunnels is proved practical to guarantee engineering quality and prevent risks. Moreover,this scheme has achieved remarkable social,environmental,technological and economic benefits.