Engineering Survey System for TBM (Tunnel Boring Machine) Tunnel Construction Strategic Integration of Surveying Services FIG Working Week 2007 Hong Kong SAR, China 13-17 May 2007 2/17 The TBM was then overhauled, retrieved and brought back to the launching shaft where it
5 Engineering Survey System in TBM Tunnel Construction •Determination of the ORIENTATION OF THE TBM 2. XZ Plane The built in Inclinometer 1 measures the roll of the TBM. I n c l i n o m e t e r 1
Engineering Survey System for TBM (Tunnel Boring Machine ... A Multi-mode TBM with EPB and slurry-supported mode is the most complex form of a convertible machine so its use is only cost effective in very special cases.
Tbm 1. Engineering Survey System for TBM (Tunnel Boring Machine) Tunnel Construction Andrew Hung Shing Lee, Hong KongKey words: TBM, Tunnel Guidance System, Zigzag Traverse.SUMMARYFor a TBM tunnel project, it is essential to establish a flawless engineering survey system toensure that the tunnel being excavated and built is in accordance with the predefinedalignment.
advancement of TBM. A well thought engineering survey scheme is devised to integrate with the operating system and working sequence of the TBM. A tunnel guidance system is tailored made for the TBM to continuously track the position and direction of the machine in course of excavating. The geo-spatial data of the
Engineering Survey System for TBM (Tunnel Boring Machine) Tunnel Construction Strategic Integration of Surveying Services FIG Working Week 2007 Hong Kong SAR, China 6/17 3.2.2 (Step 2 of 5) Transferred the secondary control station from surface at the TBM Launching Shaft to the tunnel control station at underground level (Figure 8).
Conventional tunnel heading: advance control with dibit MLS, stakeout of all fixtures, niches and tunnel enlargements, profile control of outer shell TBM: machine control with the system TAUROS. Survey of Interior construction: stakeout concrete floor, all fixtures and profile control of inner shell.
4.2.2 TBM guidance system: Since the late 1970s, tunnel guidance system has been developed that make use of computers and light-sensitive target screens to automatically indicate all TBM coordinates and altitude angles. This information can be displayed digitally. The positional information is described in X and Y coordinates of the survey ...
KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.