Assessment of over / under-break of tunnel utilizing BIM and 3D laser scanner

Abstract

Application of 3D laser scanner to civil engineering is widely studied in various fields such as tunnel, bridge, calculation of earth volume, construction measurement, observation of rock joint, etc. Some studies on utilization of the 3D laser scanner for calculating the over-break and/or under-break of tunnels have also been carried out. However, in the previous research, the scanning data were usually compared with the 2D CAD blueprint results; although the shape of tunnel structure is relatively simple, for precise calculation of the over-break and/or under-break of tunnels, three-dimensional analysis based on BIM is needed. Therefore, in this paper, a new program that calculates the over-break and/or under-break of tunnels using the 3D laser scanner and the BIM is developed; moreover the effective and rapid process of data treatment is proposed. The accuracy of the developed program was verified by applying the new system to a real tunnels construction field.

Utilization of Bim in the Construction of a Submarine Tunnel: A Case Study in Xiamen City, China

“…Shin et al (2011) proposed an algorithm to calculate the number of applications of BIM technology in the NATM tunnel construction method and to calculate the number of 3D models based on BIM. Park et al (2012) developed a new program to calculate tunnel fractures by combining BIM technology with a 3D laser scanner and proposed an efficient and fast data processing process. Ryu et al (2015) developed a method to predict multiple groups of ground conditions by using simulated Spatial Analysis (a geostatistical method) and to evaluate the tunnel excavation schedule by using BIM technology.…”