Three-dimensional Detection of Space Trajactory in Flexible Pipe by TrenchlessTechnology

摘要

The space trajectory of laying flexible pipes should not only depend on the process parameters in HDD technology. This detection method is introduced to trace three-dimensional space trajectory of non-metallic flexible pipes. Based on this method, a trajectory measuring instrument is invented by using high-precision Honeywell digital compass to measure the pitch and azimuth angles, and then to set up a mathematical model with the minimum radius of curvature method. The actual space trajactory of pipes can be reconstructed accurately, and the three-dimensional trajactory can be visualized when the device is connected to computer terminals. The instrument is proved reliable in the worksite.