岩溶区输水隧洞勘察技术综合应用研究

打开文本图片集

中图分类号：TV672.1 文献标志码：A 文章编号：1003-5168（2025）21-0049-05

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.21.009

Abstract：[Purposes] In response to the karst geological risks during the construction of a water conveyance tunnel in a karst area of Guilin，this study aims to establish an eficient and precise investigation technology system.[Methods] Karst investigation was conducted using methods including remote sensing interpretation，field hydrogeological investigation and mapping，comprehensive geophysical tests （high-density electrical method and seismic frequency resonance exploration technology），and drilling. [Findings] Surface karst anomalies were identified through remote sensing interpretation combined with geological survey.Subsurface karst features were interpreted using the high-density electrical method and seismic frequency resonance exploration technology，and verified by drilling. Based on this，the development paterns and distribution of karst in the project area were comprehensively determined， engineering geological problems were analyzed， thereby providing a geological basis for design and construction.[Conclusions] The application of comprehensive investigation technology in karst areas can significantly improve the accuracy of karst investigation. It serves as an important reference for the geological investigation and design of similar projectsin the future.

Keywords： karst tunnel; remote sensing interpretation; high-density electrical method; water inflow in tunnel; investigation

0 引言

岩溶发育呈现显著的三维非均质性，传统的地质测绘、钻探方法存在较大局限性，如点状勘探难以查清垂向优势岩溶发育带，岩溶管道网络识别率较低，因此难以查明岩溶发育和分布规律及其工程性状等问题。（剩余4434字）