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青岛胶州湾海底隧道地质条件复杂,隧址区含有多组高陡倾角断层,因此隧道在通过海域段涌水断层时的安全便成了工程建设过程中的关键问题.以此为背景,根据在胶州湾海底隧道左线隧道F4-5含水断层利用地质雷达对破碎围岩和裂隙水进行超前预报中的应用,针对信号采集和数据处理解析过程中各影响因素,采取相应的处理措施,最大限度地去除干扰,最后得出清晰准确的测线伪彩色成果图及测线波形图等成果,并从成果图中统计了探测范围内的结构面和裂隙发育的具体位置和规模、裂隙水发育位置等参数,为超前预注浆加固提供了参数.对开挖后的地质情况进行地质编录,验证了本次地质雷达预报的准确性与有效性.所采用的方法措施对于海底隧道地质雷达超前地质预报具有一定的借鉴意义.
The geological conditions of Qingdao Jiaozhou Bay Cross-Harbor Tunnel are complex, and the tunnel area contains many sets of high and steep dip faults. Therefore, the safety of the tunnel when it passes through the gushing water section of the sea area becomes the key issue in the process of construction. Based on this, The application of the F4-5 water-cut fault in the left-hand tunnel of the tunnel of the Cross Harbor Tunnel to the advanced prediction of the broken rock and fissure water by using the geologic radar. According to the influencing factors in the process of signal acquisition and data processing and analysis, the corresponding measures are taken to maximize Remove the interference, and finally obtain the clear and accurate results of line pseudo-color and line survey waveform and other results, and from the results of the statistics of the exploration area within the structural plane and the specific location and size of the development of fractures, fissure water development location Parameters for the advance of pre-grouting reinforcement provided parameters.Geological conditions after excavation geological catalog to verify the accuracy and validity of the forecast of geological radar.Methods and measures used for the submarine tunnel geological radar advanced geological prediction Have some reference significance.