地质灾害预报技术在隧道施工中的应用

Application of Geologic Disaster Prediction in Tunnel Construction

随着隧道逐渐向长、深方向发展,穿越的地质条件也越来越复杂,在施工中难免会遇到诸如岩溶突泥、突水,围岩大变形、岩爆、塌方等地质灾害问题。超前预测预报技术作为隧道勘察结果的进一步认识和补充,在隧道施工减灾、防灾和快速施工等方面发挥着重要的作用。通渝隧道施工中,采用物探技术进行超前预测预报,成功地预报了掌子面前方的地质信息,有效地指导了该隧道的安全、快速施工。

As the tunnels become longer and deeper gradually, the geologic condition that tunnels go through is more and more complex. It is hard to avoid some geologic disasters such as mud burst and water burst of karst, great deformation, burst and collapse of wall rock and so on in construction process. Advanced prediction and forecast technique exerts important functions on disaster prevention and reduction, speedy construction and other aspects of tunnel construction as farther cognition and supplement to reconnaissance survey of tunnels. Take Tongyu tunnel for instance, adopting geophysical prospecting technique to carry through advanced prediction and forecast for tunnel construction has forecasted the geologic information in tunnel＇s frontage successfully, thus the forecast results guide the safe and speedy construction of this tunnel effectively.