物探化探计算技术2024，Vol.46Issue(4)：403-409,7.DOI:10.3969/j.issn.1001-1749.2024.04.04
TETSP在隧洞超前地质预报中的应用
Application of TETSP in tunnel advance geological prediction
摘要
Abstract
This paper introduces a tunnel long-distance prediction seismic reflection imaging system,TETSP,which is used for advanced geological prediction of a water distribution project tunnel with TSP303.The layout and data processing process of the TETSP observation system are introduced,and the differences between TETSP and TSP303 in terms of detector coupling and acoustic interference suppression are explained.The characteristics of the original signals are compared,and the reflection anomaly law corresponding to the strong dissolution zone of the rock mass is analyzed;the actual excavation results of the tunnel have verified the reliability of TSP303 and TETSP predictions.The results show that both seismic reflection tech-niques can effectively detect interfaces with significant differences in wave impedance of the rock mass in front of the palm.Sec-ondly,areas with concentrated reflection interfaces in offset profiles and low longitudinal and transverse wave velocities corre-spond to poor rock mass quality.Thirdly,TETSP detector sensitivity and data noise ratio TSP303 is higher,but TSP303 data processing software is relatively more mature and,therefore has higher prediction accuracy.关键词
TETSP/TSP303/千岛湖配水工程/超前地质预报Key words
TETSP/TSP303/thousand island lake-Hangzhou water transfer project/advance geological prediction分类
水利科学引用本文复制引用
吴海洋..TETSP在隧洞超前地质预报中的应用[J].物探化探计算技术,2024,46(4):403-409,7.基金项目
国家自然科学基金项目(41641040) （41641040）
