A New Method of Shield Attitude Automatic Measurement and Multi-Source Data Processing Based on TPS & Clinometer

Abstract:

In this paper, a new method is put forward for Shield-attituded Automatic Measurement. With narrow space in underground tunnel and difficulty to measure more than 2 points by TPS, this paper takes advantage of integrated guidance method by TPS and clinometer , then pitch and scroll of shield obtained from clinometer as observed data would be processed error adjustment based on 3D datum transformation ,which solves multi-source data collection and process; With some successful application of this method on tunnel construction guidance in Shanghai Metro No.12 line and Hangzhou Metro No.1 line, this method proved to be reliable and practical.