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System and method for real-time guidance and mapping of a tunnel boring machine and tunnel

  • US 9,292,017 B2
  • Filed: 04/21/2014
  • Issued: 03/22/2016
  • Est. Priority Date: 04/22/2013
  • Status: Active Grant
First Claim
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1. A dynamic geo-location and mapping system for a tunnel boring machine (TBM) used to determine deviation from a design centerline of a tunnel to the TBM, generate a position update for the TBM guidance system and generate a three-dimensional plan of the tunnel as built, the system comprising:

  • a TBM;

    a first Inertial Navigation System (INS) mounted on a vehicle, wherein the vehicle is configured to service the TBM;

    position determining systems located proximate to a launch pit configured to transmit positioning data for initialization of the first INS for obtaining an accurate current position of the vehicle;

    a ranging device mounted on the vehicle to make measurements orthogonal to the geometric centerline of the tunnel;

    a first memory located on the vehicle;

    a first computer located on the vehicle, wherein the first computer is configured to collect data as the vehicle traverses the tunnel;

    responsive to traversing the tunnel for data collection, logging data in the first memory, arrive at a known and predetermined location with the TBM, and transmit the logged data to the TBM;

    a second INS located on the TBM;

    a second memory located on the TBM;

    a second computer located on the TBM configured to receive the logged data from the first computer, receive an updated position of the first INS, translate the first INS position to the second INS as a position update and determine real-time parametric guidance information for the TBM to at least one of maintain a current path and course correct to the design centerline of the tunnel.

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