Soil Classification and Selection of Shoring Systems for Trench Excavation Abstract Digging trenches exposes workers to many risks, and cave-ins are both the most serious and the most frequent of them. An analysis of 51 CNESST reports on serious and fatal accidents that occurred between 1974 and 2013 during excavation and trench-digging work revealed that there were 48 fatalities and 17 serious accidents during that period. The primary causes were an absence of shoring and safe work methods.This study aims to classify soils in urban areas in Québec, to develop a simple method to determine the type of soil on a site in situ, in order to safely carry out the work of excavation or shoring. Moreover, the researchers intend to validate the resistance and behaviour of shoring systems for different types of soil and loading conditions. They also want to develop a decision support system to facilitate the choice of a shoring system that integrates geological, geotechnical and structural factors. Produced Under this Project Scientific Reports Classification des sols et sélection des systèmes d’étançonnement pour l’excavation des tranchées : résultats des essais réalisés au laboratoire de géotechnique de l’Université Laval – Annexe Report Appendix: RA-1144-frClassification des sols et sélection des systèmes d’étançonnement pour l’excavation des tranchées Research Report: R-1144-fr Video Reports and Conferences Classification des sols et sélection des systèmes d’étançonnement pour l’excavation des tranchées Conference: CF-1144 Simplified Articles Une classification des sols propre au Québec Volume 35, n0 1 Scientific Publications Protection practices for trench and excavation in Quebec sensitive clay soils: Review of codes, guidelines, and research needsAlam M., Chaallal O., Bertrand GalySource : (2020). Safety Science, 131. doi: 10.1016/j.ssci.2020.104918Field test of temporary excavation wall support in sensitive clayAlam M., Chaallal O., Bertrand GalySource : (2021). International Journal of Geoengineering Case Histories, 6(2), 18-40. doi: 10.4417/IJGCH-06-02-02Flexible temporary shield in soft and sensitive clay: 3D FE modelling of experimental field testAlam M., Chaallal O., Bertrand GalySource : (2021). Modeling and Simulation in Engineering, 2021. doi: 10.1155/2021/6626750Soil-structure interaction of flexible temporary trench box: Parametric studies using 3D FE modellingAlam M., Chaallal O., Bertrand GalySource : (2021). Modeling and Simulation in Engineering, 2021. doi: 10.1155/2021/9949976Principaux résultats de la recherche classification des sols et sélection des systèmes d’étançonnement pour l’excavation des tranchéesBertrand GalySource : (2022). Communication présentée à Webinaire - Association québécoise des entrepreneurs en infrastructure (AQEI) , Montreal, QC. Other Project(s) You May be Interested in Validation of a shoring technique for excavation in urban environments: protoype design and productionDesign of shoring suitable for urban excavation workValidation of a shoring system made with a high density polyethylene pipe (HDPE) or metal section normally used for culverts or sewersSurvey of shoring and shielding systems and reduction of the stand-off distance at the top of trenches Additional Information Type: Project Number: 0099-5290 Status: Completed Year of completion: 2021 Research Field: Mechanical and Physical Risk Prevention Team: André Lan (IRSST)Denis LeBoeuf (Université Laval)Omar Chaallal (École de technologie supérieure)Bertrand Galy (IRSST)