Digital library of construction informatics and information technology in civil engineering and construction
 
ITC
Digital library
SciX
Tower of Babel
Home All papers Browse by series Browse by authors Browse by keywords Browse by years
Paper: convr-2013-23
Paper title: Real-time tablet-based virtual reality implementation to facilitate tunnel boring machine steering control in tunnel construction
Authors: Mao S,Shen X,Lu M,Wu X
Summary: On the majority of tunneling projects, steering a tunnel boring machine (TBM) currently relies on a laser station which projects a laser beam onto a laser target board mounted on the TBM. However, laser target boards lack accuracy and reliability, thus potentially contributing to quality defects and increased risks of schedule delay and budget overrun in tunnel construction. This research has developed a cost-effective, real-time solution called “virtual laser target board (VLTB)” to substitute for physical laser target boards in guiding TBM during construction. Through integrating automation control mechanisms, innovative computing algorithms, and wireless network technologies, the VLTB technology transforms a popular survey tool, the robotic total station, into a construction control robot which precisely tracks and positions the TBM. By applying an enhanced point-to-angle computing algorithm, VLTB calculates the exact coordinates of the cutter head center on the working TBM in millimeter-level accuracy. The invisible cutter head center is projected onto a “virtual laser target board” on a tablet interface in relation to the as-designed alignment. Based on field testing, VLTB is found to be able to lend real-time, relevant assistance to TBM operators and tunnel surveyors. Compared to other advanced technologies in the market, VLTB provides a simpler and more flexible solution to ensure tunnel alignment control and enhance quality and productivity performances in tunnel construction.
Type: paper
Year of publication: 2013
Keywords: Tunnel Construction,Tunnel Boring Machine,Virtual Reality,Mobile Computing,Machine Control and Guidance,Robotic Total Station
Series: convr:2013
Download paper: /pdfs/convr-2013-23.pdf
Citation: Mao S,Shen X,Lu M,Wu X (2013). Real-time tablet-based virtual reality implementation to facilitate tunnel boring machine steering control in tunnel construction. CONVR 2013, http://itc.scix.net/paper/convr-2013-23
hosted by University of Ljubljana University of Ljubljana

includes:

CIB
W78

ECCE

ITcon
© itc.scix.net
inspired by SciX, ported by Robert Klinc [2019]