Abstract Aiming at the Gaoligongshan tunnel with large buried depth and complex geology, in order to accurately
understand the geological conditions in front of the working face during the TBM construction, a set of advanced geological prediction system, which can be mounted on TBM equipment is designed by taking the characteristics of TBM equipment into consideration. The system consists of a three-dimensional induced polarization instrument and a three-dimensional seismograph. By innovatively designing of built-in telescopic electrode on the cutterhead and shield, using the rotary joint of integrated brush to transmit the electrode signal of the cutterhead, and using rotary hammer, it solves the problems of poor adaptability, long forecast period, influence on construction efficiency and difficult loading of the traditional D&B method geological forecasting system on TBM. The application result indicates the system is easy to operate, it is fast and accurately to acquire signal, and the prediction results are accurate
and reliable.
Abstract：
Aiming at the Gaoligongshan tunnel with large buried depth and complex geology, in order to accurately
understand the geological conditions in front of the working face during the TBM construction, a set of advanced geological prediction system, which can be mounted on TBM equipment is designed by taking the characteristics of TBM equipment into consideration. The system consists of a three-dimensional induced polarization instrument and a three-dimensional seismograph. By innovatively designing of built-in telescopic electrode on the cutterhead and shield, using the rotary joint of integrated brush to transmit the electrode signal of the cutterhead, and using rotary hammer, it solves the problems of poor adaptability, long forecast period, influence on construction efficiency and difficult loading of the traditional D&B method geological forecasting system on TBM. The application result indicates the system is easy to operate, it is fast and accurately to acquire signal, and the prediction results are accurate
and reliable.
YANG Tianren HE Fei NING Xiangke ZHANG Xiao TIAN Yanchao
.Design and Application of Advanced Geological Prediction System of TBM for Gaoligongshan Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2020,V57(4): 37-42
2020, Vol. 57 