TST和CFC技术在管片拼装隧道超前地质预报中的改进和应用

李雷, 邵质中, 蒋辉, 姚琦发

doi:10.3973/j.issn.2096-4498.2023.S2.036

隧道建设 >

2023 , Vol. 43 >Issue S2: 321 - 329

DOI: https://doi.org/10.3973/j.issn.2096-4498.2023.S2.036

地质与勘察

TST和CFC技术在管片拼装隧道超前地质预报中的改进和应用

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（1. 中国水利水电第六工程局有限公司，辽宁沈阳 110179； 2. 中国铁建重工集团股份有限公司，湖南长沙 410100； 3. 北京同度工程物探技术有限公司，北京 102209）

李雷（1971—），男，山东高密人，2019年毕业于国家开放大学，水利水电工程专业，本科，高级工程师，现从事水利施工技术工作。 Email： 531238314@qq.com。 *通信作者：姚琦发, Email： 2996884796@qq.com。

网络出版日期: 2024-03-28

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Improvement and Application of Tunnel Seismic Tomography and Complex Frequency Conductivity Technology in Advance Geological Prediction

of SegmentAssembled Tunnel

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(1. China Water Resources and Hydropower Sixth Engineering Bureau Co., Ltd., Shenyang 110179, Liaoning, China;2. China Railway Construction Heavy Industry Corporation Limited, Changsha 410100, Hunan, China;3. Beijing Tong Du Engineering Geophysics Limited, Beijing 102209, China)

Online published: 2024-03-28

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摘要

为解决盾构及TBM施工隧道地质构造和围岩含水探测的难题，在TBM引水隧洞中进行试验。改进在管片结构下TST(tunnel seismic tomography)观测系统的布置方式；针对大断层等高危不良地质体开展三维地震波法的超前地质预报研究试验；改进CFC(complex frequency conductivity)的观测方式，结合地震波方法，开展对刀盘前方围岩含水情况综合预报研究试验。以斯里兰卡埃勒黑勒运河、秘鲁圣佳旺Ⅲ水电站和菲律宾卡利瓦大坝引水隧洞等工程为例，介绍盾构及TBM施工隧道超前地质预报技术的工程实践。研究结果表明，针对软硬岩互层、大断层、含水构造不良地质体，该方法在实践中具有较好的应用效果。

关键词： 隧道掘进机; 引水隧洞; 不良地质; 综合超前地质预报; 超前探水; 地震波超前探测; 复频电导率法; 隧道散射地震层析成像技术

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李雷, 邵质中, 蒋辉, 姚琦发 . TST和CFC技术在管片拼装隧道超前地质预报中的改进和应用[J]. 隧道建设, 2023 , 43(S2) : 321 -329 . DOI: 10.3973/j.issn.2096-4498.2023.S2.036

Abstract

To predict the geological structure and surrounding rock moisture in shield and tunnel boring machine(TBM) tunnels, experiments are conducted in a TBM waterdiversion tunnel. The arrangement of tunnel seismic tomography observation system under the segment structure is improved, and the advance geological prediction research experiment of the threedimensional seismic wave method is conducted for highrisk unfavorable geological bodies such as large faults. Then, the complex frequency conductivity method is improved combining the observation method with the seismic wave method, and a research experiment on the comprehensive prediction of the water content of the surrounding rock in front of the cutterhead is conducted. Taking the Elahera Canal in Sri Lanka, the San Gabán Ⅲ hydropower station in Peru, and the diversion tunnel of the Kaliwa dam in the Philippines as examples, the advance geological prediction technology is introduced. The research results show that the method has a good application effect in practice for soft and hard rock interbedding, large faults, and geological bodies with poor water structure.

Key words： tunnel boring machine; water diversion tunnel; bad geology; comprehensive advance geological prediction; advance water exploration; advance seismic wave detection; complex frequency conductivity; tunnel seismic tomography

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