千岛湖配水工程隧洞超前预报中的综合物探技术 |
李俊杰, 徐庆强, 李剑强, 何建设, 郭佳豪 |
The application of geophysical prospecting technology to tunnel advance prediction in Thousand-island Lake water distribution project |
Jun-Jie LI, Qing-Qiang XU, Jian-Qiang LI, Jian-She HE, Jia-Hao GUO |
图4 王家主洞桩号K84+429~K84+399区段探地雷达剖面及典型单道频谱 a—雷达剖面;b—第32道频率-时间谱 |
Fig.4 GPR profiles of stake number K84+429~K84+399 as well as frequency spectrums of typical single-trace in Wangjia tunnel a—GPR profile;b—time-frequency spectrum of the 32nd trace |