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首先对公路隧道超前地质预报的主要方法进行了对比,提出使用TGP12在隧道超前地质预报上的优点,并介绍了TGP12探测方法的设备及原理,然后以长冲隧道为工程案例,介绍了TGP12技术中的测点布设及数据采集方法,针对地质较为复杂路段,TGP12超前地质预报采取每150m左右预报一次的频率,文章选取长冲隧道出口K8+510～K8+370段进行分析,并验证了TGP12超前地质预报结论和实际情况的吻合性。
Firstly, the main methods of advanced geological forecast of highway tunnel are compared, the advantages of using TGP12 in advanced geological forecasting of tunnel are put forward, and the equipment and principle of TGP12 detection method are introduced. Then based on the case of Changchong tunnel, the article introduces TGP12 In view of the complicated geological sections, TGP12 advanced geological prediction takes the frequency of every 150m forecast. The paper chooses the section K8 + 510 ~ K8 + 370 of Changchong tunnel exit for analysis and verifies that TGP12 Coincidence of conclusion of geological prediction and actual situation.