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公开(公告)号：US20230051333A1
公开(公告)日：2023-02-16
申请号：US17492956
申请日：2021-10-04
Applicant: China University of Mining and Technology
Inventor： Bo Wang , Xiaozhao Li , Guanqun Zhou , Fuqing Li , Qinghong Dong , Ziwei Qian , Siyuan Hu , Hongyun Chen
Abstract: A directional drilling-exploring-monitoring integrated method for guaranteeing safety of an underwater shield tunnel includes: drilling a small-diameter borehole below a water area, and establishing an initial geological model; reaming the small-diameter borehole into a large-diameter borehole, placing a parallel electrical method (PEM) power cable and a monitoring optical fiber cable into the large-diameter borehole, acquiring zero field data, primary field data and secondary field data through carbon rod measurement electrodes before tunnel excavation, and processing the data with an existing inversion method to form an inversion image, thereby obtaining a refined geological model of a stratum; starting the tunnel excavation, and respectively acquiring a disturbance condition of rock and soil and a sedimentation and deformation condition of rock and soil around the tunnel during the excavation, thereby implementing safety excavation of the tunnel; and continuously monitoring the tunnel and the surrounding rock and soil in later use of the tunnel.
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公开(公告)号：US11753935B2
公开(公告)日：2023-09-12
申请号：US17492956
申请日：2021-10-04
Applicant: China University of Mining and Technology
Inventor： Bo Wang , Xiaozhao Li , Guanqun Zhou , Fuqing Li , Qinghong Dong , Ziwei Qian , Siyuan Hu , Hongyun Chen
CPC classification number: E21D9/003 , E21B7/046 , E21B49/003 , E21B49/005 , E21D9/06 , E21B2200/20
Abstract: A directional drilling-exploring-monitoring integrated method for guaranteeing safety of an underwater shield tunnel includes: drilling a small-diameter borehole below a water area, and establishing an initial geological model; reaming the small-diameter borehole into a large-diameter borehole, placing a parallel electrical method (PEM) power cable and a monitoring optical fiber cable into the large-diameter borehole, acquiring zero field data, primary field data and secondary field data through carbon rod measurement electrodes before tunnel excavation, and processing the data with an existing inversion method to form an inversion image, thereby obtaining a refined geological model of a stratum; starting the tunnel excavation, and respectively acquiring a disturbance condition of rock and soil and a sedimentation and deformation condition of rock and soil around the tunnel during the excavation, thereby implementing safety excavation of the tunnel; and continuously monitoring the tunnel and the surrounding rock and soil in later use of the tunnel.
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