Development of a Three-Dimensional Modeling Method for Monitoring Overall Foundation Pit Deformation Based on Terrestrial Laser Scanning

Abstract:

Concrete diaphragm wall is widely used in deep foundation pit projects in city. Its lateral deformation is an important item in the deformation monitoring of the retaining structure of foundation pit. Traditional monitoring techniques for concrete diaphragm wall deformation collect data only from several sections, failing to understand the overall foundation pit deformation. Taking the north pit of Huaihai road station on Shanghai Metro Line 13 as an example, this study measures overall deformation by means of terrestrial laser scanning. Methods of data collection and data process will be introduced. A three-dimensional modeling algorithm using point cloud data of foundation pit is proposed so that the overall model of the concrete diaphragm wall can be got. And finally the overall deformation can be got by comparing the model of different periods.

• Periodical: Applied Mechanics and Materials (Volume 743)
• Pages: 866-875
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.743.866
• Online since: March 2015
• Authors: X.Y. Xie*, K.W. Zhu
• Keywords: Foundation Pit, Overall Deformation, Terrestrial Laser Scanning

References

[1] Xu Zhonghua, Wang Jianhua, Wang Weidong, Deformation behavior of diaphragm walls in deep excavations in Shanghai, China Civil Engineering Journal, 2008, 41(8): 81-86.

[2] Zhang Bin, Inclining Monitoring of Some Super-large Deep Foundation Excavation, Construction Technology, 2011, S2: 28-31.

[3] Dai Shengshan, Li Tianfeng, The Development And Application Prospects For Grand Three-dimensional Laser Scan Technology, Modern Surveying And Mapping, 2009, (04): 11-12+15.

[4] Xie Yuanyuan, 3D Laser Scanning Technology and Its Application in Measurement, Value Engineering, 2012, (15): 209.

[5] M. Lemmens, Terrestrial Laser Scanning, Geo-information, 2011: 101-121.

[6] D. Schneider, Terrestrial laser scanning for area based deformation analysis of towers and water dams, Terrestrial laser scanning for area based deformation analysis of towers and water dams. Proc of 3rd IAG/12th FIG Symp, Baden, Austria, May. 22-24.

[7] D. Delaloye, Development of a new methodology for measuring deformation in tunnels and shafts with terrestrial laser scanning (LIDAR) using elliptical fitting algorithms, " Kingston, Ontario, Canada: Queen, s University, (2012).

[8] M. Alba, L. Fregonese, F. Prandi, M. Scaioni, P. Valgoi, Structural monitoring of a large dam by terrestrial laser scanning, Structural monitoring of a large dam by terrestrial laser scanning. Proceedings of of the ISPRS Commission V Symposium, Dresden.

[9] J.N. Oliveira Filho, Y.Y. Su, H. SONG, L.Y. Liu, Y.M.A. Hashash, Field Tests of 3D Laser Scanning in Urban Excavation, Field Tests of 3D Laser Scanning in Urban Excavation. Computing in Civil Engineering (2005). ASCE.

DOI: 10.1061/40794(179)54

[10] Y.M.A. Hashash, J.N. Oliveira Filho, Y.Y. Su, L.Y. Liu, 3D laser scanning for tracking supported excavation construction, Geo-Frontiers 2005, 2005: 24-26.

DOI: 10.1061/40785(164)2

[11] Y.Y. Su, Y.M.A. Hashash, L.Y. Liu, Integration of construction as-built data via laser scanning with geotechnical monitoring of urban excavation, Journal of construction engineering and management, 2006, 132(12): 1234-1241.

DOI: 10.1061/(asce)0733-9364(2006)132:12(1234)

[12] Youseef M.A. Hashash, Liang Liu, Yun-Yi Su, Hwayeon Song, Use of new technologies for tracking excavation progress, GeoCongress 2006: Geotechnical Engineering in the Information Technology Age, (2006).

DOI: 10.1061/40803(187)70

[13] Samir El-Omari, Osama Moselhi, Integrating automated data acquisition technologies for progress reporting of construction projects, Automation in Construction, 2011, 20(6): 699-705.

DOI: 10.1016/j.autcon.2010.12.001