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http://dx.doi.org/10.6106/KJCEM.2022.23.1.064

Conceptual Design and Displacement Recognition Performance Verification of Displacement Measurement System for Retaining Wall Structure Based on Laser Sensor  

Kim, Jun-Sang (Department of Architectural Engineering, Inha University)
Lee, Gil-yong (Department of Architectural Engineering, Inha University)
Kim, Young Suk (Department of Architectural Engineering, Inha University)
Publication Information
Korean Journal of Construction Engineering and Management / v.23, no.1, 2022 , pp. 64-72 More about this Journal
Abstract
The retaining wall structure is essential for construction work that performs underground excavation. Displacement management of the retaining wall structure is important regardless of the size of the construction. However, in the case of small-scale construction sites with an excavation depth of less than 10m, displacement management of retaining wall structure not properly performed due to problems such as 1) companies' smallness, 2) lack of capacity of construction managers, 3) complexity of installation, dismantling and displacement of measuring instruments. As a result of analyzing previous research, it was analyzed that it is difficult to apply this to a small - scale construction site because most of the previous research has problems in using an expensive 3D scanner or installing many measuring instruments. This study aims to propose a conceptual design of a displacement measurement system for retaining wall structure based on laser sensor and to verify the displacement recognition performance of core technology applied to the conceptual design. A conceptual design was proposed using a 2D laser scanner. As a result of verifying the displacement recognition of the 2D laser scanner, a displacement of 15mm was analyzed to be sufficiently understandable. In the future, if the proposed conceptual design is developed and applied to the small-scale construction site, it is thought that it will contribute to the reduction of safety accidents at small-scale construction sites.
Keywords
Laser Sensor; Retaining Wall Structure; Displacement Measurement; Small Construction Site;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, J.S., Kim, C.W., and Kim, Y.S. (2021). "Development of a Pilot Type for Measuring and Monitoring the Displacement of Retaining Structure Based on a Rotary Laser Distance Sensor." Journal of the Architectural Institute of Korea, Architectural Institute of Korea, 37(1), pp. 219-227.   DOI
2 Ministry of Land, Infrastructure and Transport (2021). Korean Building Code-Structural.
3 MEL (2020). Standard safety work guideline of excavating work.
4 Kim, J.Y., Park U.Y., Kim, G.H., and Kim J.K. (2004). "A Study on the Selection Model of Retaining Wall Methods Using Case-Based Reasoning." Korean journal of Construction Engineering and Management, KICT, 5(21), pp. 43-44.
5 Seoul (2018). Seoul Evaluation Manual for Earthwork Committee.
6 Lague, D., Brodu, N., and Leroux, J. (2013). "Accurate 3D comparison of complex topography with terrestrial laser scanner: Application to the Rangitikei canyon (N-Z)." ISPRS Journal of Photogrammetry and Remote Sensing, ISPRS, 82, pp. 10-26.   DOI
7 Lee, J.H., Jin, H.S., Jeoung, J.H., and Baek, Y., (2018) "A Basic Study on the Determination of Retaining Wall by Excavation Case Study." Fall Geosynthetics Conference, Korean Geosynthetics Society, 10, pp. 43-44.
8 Seo, H.J., Zhao, Y., and Wang, J. (2019). "Monitoring of retaining structures on an open excavation site with 3D laser scanning." International Conference on Smart Infrastructure and Construction, ICSIC 2019, U.K, pp. 665-672.
9 Seoul (2021). Building Codes of Seoul.
10 Um, D.Y., and Kim, J.H., (2009). "The Reflected Property Analysis of 3D Laser Scanning System as Object Surface Materials." Photogrammetry and Cartography, Korean Society of Surveying, 27(3), pp. 347-356.
11 Zhao, Y., Seo, H., and Chen, C. (2021). "Displacement mapping of point clouds: application of retaining structures composed of sheet piles." Journal of Civil Structural Health Monitoring, JCSHM, 11(4), pp. 915-930.   DOI