摘要
锦屏二级水电站引水隧洞施工地质条件复杂、埋深大、洞线长、洞径大,高压集中涌水的预防与处理成为隧道超前地质预报的重中之重,应用地质雷达(GPR)技术进行地下水的超前探测预报不仅可行有效,且具有扫描速度快、操作简便、分辨率高、图像直观等优点。本文结合工程实际,分析了GPR进行地下水探测的基本原理和方法,并总结了局限性,可为GPR进行地下水探测的理论研究和工程应用提供一定的参考。
The geological condition for the construction of diversion tunnel for Jinping Hydropower Station II is quite complicated, such as large embedded depth, long tunnel length, big tunnel diameter, and then both the prevention and treatment of the high pressure and concentrated water gushing becomes the most important thing; for which the application of ground penetrating radar （GPR） to the geological advanced prediction of groundwater is not only feasible and effective, but also has the merits, i. e. high scanning speed, simple operation, high resolution, visual image, etc. Based on the relevant engineering practice, the basic principle and method of groundwater prediction made by GPR are analyzed herein along with the summarization of its limitations ; which can provide a certain reference for the theoretical study and engineering application concerned.
出处
《水利水电技术》
CSCD
北大核心
2011年第3期16-18,34,共4页
Water Resources and Hydropower Engineering
关键词
锦屏二级水电站
引水隧洞
地下水
地质雷达
超前探测预报
Jinping Hydropower Station II
diversion tunnel
groundwater
ground penetrating radar （GPR）
geological ad- vanced prediction
