CAJ | 학술논문

隧道在施工开挖中会遇到各种地质问题，其中以断层和软弱带居多，目前隧道地质预报主要采用 TSP（tunnel seismic prediction）系统进行。虽然 TSP 技术应用广泛，但目前对它的研究工作主要集中于工程应用实例，采用正演模拟方法进行的研究较少。笔者采用有限元方法模拟隧道地震波场，采用波场快照与时间记录相结合的方法研究断层对隧道地震波场传播的影响，并对含断层模型的时间记录进行了反演处理，得到了数值模型的速度云图和反射层位图。数据处理结果表明：采用 TSP Win 软件默认值处理得到的速度云图与模型设定的断层位置一致；根据反射层位图，对异常速度带的层状模型来说，P 波预报的准确性更高。研究表明，TSP 系统具有良好的抗噪性能。通过对工程实例的处理，验证了数值模拟所得结论。
수도재시공개알중회우도각충지질문제，기중이단층화연약대거다，목전수도지질예보주요채용 TSP（tunnel seismic prediction）계통진행。수연 TSP 기술응용엄범，단목전대타적연구공작주요집중우공정응용실례，채용정연모의방법진행적연구교소。필자채용유한원방법모의수도지진파장，채용파장쾌조여시간기록상결합적방법연구단층대수도지진파장전파적영향，병대함단층모형적시간기록진행료반연처리，득도료수치모형적속도운도화반사층위도。수거처리결과표명：채용 TSP Win 연건묵인치처리득도적속도운도여모형설정적단층위치일치；근거반사층위도，대이상속도대적층상모형래설，P 파예보적준학성경고。연구표명，TSP 계통구유량호적항조성능。통과대공정실례적처리，험증료수치모의소득결론。
During tunnel excavation ,a variety of geological disasters might be encountered ,such as faults ,caves ,et .al . Tunnel seismic prediction (TSP ) is adopted to mitigate the possible damages . Although TSP technology is used widely ,the research about TSP is currently focused on its engineering application cases .We use the finite element method to simulate the tunnel seismic wave field ,employ wave field snapshots and time recording method on the impact of faults on the characteristics of the propagation of tunnel seismic wave field ,and inversely process the time record of model containing the fault .The digital model of the velocity scattered image and the reflection interface position are obtained , and the fault position from velocity scattered image processed with the default values set by using TSPwin is agreed to the one from the model .In respect to the layered model for an abnormal velocity zone ,P‐wave is more precise .The system of TSP is strong for its feature of anti‐noise .The numerical simulation is verified finally through the process and analysis of the engineering cases .