Danute SLIZYTE, Natalija LEPKOVA, Rimantas MACKEVICIUS

Geotechnical Risk Identification: Case Study of Flexible Retaining Wall Installation

Analysis of the scientific literature has demonstrated that the risk of collapse or deformations of flexible retaining walls has not been the object of in-depth examination so far. The article presents an analysis of the main geotechnical risks, focusing on the installation of flexible retaining walls according to analysis by construction participants and their experiences. A case study was conducted to identify the risks of flexible retaining walls. In order to determine the risks of installation of flexible retaining walls, the authors of the article employed a face-to-face interview approach. Investigation of the data obtained during the face-to-face interview was based on brainstorming and the cause and effect diagram: five professionals who had monitored most of the risks were selected with the help of the faceto-face interview. The results of the investigation showed, that for specific and complicated projects the team of professionals should be composed of specialists from different fields of construction. Additionally, the respondents agreed with the opinion that the greatest loss in the given situation would be caused by a breakdown in the pressure pipe and pollution of the natural environment by wastewater. The novelty of the article on investigating the possibilities for identifying the risk of installation of flexible retaining walls and on suggesting risk identification steps.

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Lacasse, S. Hazard, Reliability and risk assessment – research and practice for increased safety. NGM 2016 Reykjavik Proceedings. Paper presented at the 17th Nordic Geotechnical Meeting. Challenges in Nordic Geotechnics, 25–28 May 2016.
[2] Flage, R., Aven, T. Emerging risk – Conceptual definition and relation to black swan type of events. Reliab. Eng. Syst. Safe., 144, 61–67, 2015.
[3] ISO 31000:2009(E). Risk management – Principles and guidelines.
[4] Duncan, J.M. Factors of safety and reliability in geotechnical engineering. J. Geotech. Geoenviron., 126(4), 307–316, 2000.
[5] Gibson, W. Probabilistic methods for slope analysis and design. Aust. Geomech. J., 46(3), 1–12, 2011.
[6] Brown, E.T. Risk assessment and management in underground rock engineering—an overview. J. Rock Mech. Geotech. Eng, 4(3), 193–204, 2012.
[7] Swannell, N., Palmer, M., Barla, G., Barla, M. Geotechnical risk management approach for TBM tunnelling in squeezing ground conditions. Tunn. Undergr. Sp. Tech., 57, 201–210, 2016.
[8] Mishra, R.K., Janiszewski, M., Uotinen, L.K.T., Szydlowska, M., Siren, T., Rinne, M. Geotechnical Risk Management Concept for Intelligent Deep Mines, Procedia Eng, 191, 361–368, 2017.
[9] Xia, Y., Xiong Z., Dong, X., Lu, H. Risk assessment and decision-making under uncertainty in tunnel and underground engineering. Entropy, 19(10), 549, 2017.
[10] Haddad, A., Eidgahee, D.R., Naderpour, H. A probabilistic study on the geometrical design of gravity retaining walls. World J. Eng., 14(5), 414–422, 2017.
[11] Zou, Y., Kiviniemi, A., Jones, S.W. A review of risk management through BIM and BIM-related technologies. Safety Sci., 97, 88–98, 2017.
[12] Li, Z., Xue, Y., Qiu, D., Xu, Z., Zhang, X., Zhou, B., Wang, X. AHP-ideal point model for large underground petroleum storage site selection: an engineering application. Sustainability, 9(12), 2343, 2017.
[13] Xue, Y., Cao, Z., Du, F., Zhu, L. The influence of the backfilling roadway driving sequence on the rockburst risk of a coal pillar based on an energy density criterion. Sustainability, 10(8), 2609, 2018.
[14] Ahmadi, M.; Behzadian, K.; Ardeshir, A.; Kapelan, Z. Comprehensive Risk Management Using Fuzzy FMEA and MCDA Techniques in Highway Construction Projects. Journal of Civil Engineering and Management 2017, 23 (2), 300-310, DOI: 10.3846/13923730.2015.1068847.
[15] Valipour, A.; Yahaya, N.; Md Noor, N.; Antuchevičienė, J.; Tamošaitienė, J. Hybrid SWARA-COPRAS Method for Risk Assessment in Deep Foundation Excavation Project: An Iranian Case Study. Journal of Civil Engineering and Management2017, 23(4), 524–532, DOI: https://doi.org/10.3846/13923730.2017.1281842
[16] SGF (Swedish Geotechnical Society). Risk Management in Geotechnical Engineering Projects – Requirements: Methodology. Report 1:2014E. 2nd ed. Linköping: Swedish Geotechnical Society. 2017. Available online: http://www.sgf.net/web/page.aspx?refid=4567 (accessed on 5 March 2018).
[17] Clayton, C.R.I. (ed.) Managing Geotechnical Risk - Improving Productivity in the United Kingdom, 2001.
[18] Baynes, F.J. Sources of geotechnical risk. Q. J. Eng. Geol. Hydrog., 43, 321–331, 2010.
[19] Sartain, N., Mian, J., Free, M. Presenting uncertainty clearly: challenges in communicating geotechnical risk. Geotechnical Safety and Risk V, 739–751, 2015.
[20] Huang, H., Zhang, D. Quantitative geotechnical risk management for tunneling projects in China. Geotechnical Safety and Risk V, 61–75, 2015.
[21] Simpson B & Driscoll R, Eurocode 7: A Commentary. CRC Ltd, Watford. 179 p, 1998.
[22] EN-1997-1 Eurocode 7: Geotechnical Design – Part 1: General Rules. 168 p.
[23] EN-1997-2 Eurocode 7 – Geotechnical Design – Part 2: Ground Investigation and Testing. 196 p.
[24] ISO/IEC 31010:2009. Risk Management – Risk Assessment Techniques. International Organization for Standardization, Geneva.
[25] Dikčius, V. Marketing Research. Theory and Practice. Vilnius, Lithuania, 187 p, 2003 [in Lithuanian].