Reference number : GC-2017-Q2-00533, amendment number : , agreement type : G, recipient legal name : Liu, Jinyuan (Ryerson University), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Collaborative Research and Development Grants - Project, program name french : Subventions de recherche et développement coopérative - projet, program purpose english : This proposed research is to extend a successful NSERC Engage research project into a thorough investigation of applying the deep mixing method (DMM) for ground improvement of sensitive Champlain Sea clay. Infrastructure development around the Ottawa region and the Upper St. Lawrence River region is important for Canada's economy; however, the local marine clay known as Champlain Sea clay makes construction activity difficult due to its sensitive nature. Champlain Sea clay has also been responsible for many landslides in the area. Therefore, a novel ground improvement method is urgently required for safe and cost-efficient infrastructure development. DMM is a ground improvement technique where a binder such as cement or lime is mixed in-situ into the soil to improve its properties and make construction workable. Since its inception in the 1970s, DMM has become very popular in many parts of world, including Western Canada. However, DMM has yet to be applied in Eastern Canada due to a lack of test data. During a previous NSERC Engage project, the efficiency of stabilizing Champlain Sea clay with cement was confirmed with a significant strength increase and compressibility reduction. The objectives of this research are to 1) obtain the right binder and optimum dosage and thoroughly investigate the geotechnical properties of stabilized Champlain Sea clay; 2) test the long-term performance of DMM stabilized Champlain Sea clay; and 3) develop a rigorous design method. The introduction of DMM could have significant economic and social benefits for infrastructure development in Eastern Canada., program purpose french : This proposed research is to extend a successful NSERC Engage research project into a thorough investigation of applying the deep mixing method (DMM) for ground improvement of sensitive Champlain Sea clay. Infrastructure development around the Ottawa region and the Upper St. Lawrence River region is important for Canada's economy; however, the local marine clay known as Champlain Sea clay makes construction activity difficult due to its sensitive nature. Champlain Sea clay has also been responsible for many landslides in the area. Therefore, a novel ground improvement method is urgently required for safe and cost-efficient infrastructure development. DMM is a ground improvement technique where a binder such as cement or lime is mixed in-situ into the soil to improve its properties and make construction workable. Since its inception in the 1970s, DMM has become very popular in many parts of world, including Western Canada. However, DMM has yet to be applied in Eastern Canada due to a lack of test data. During a previous NSERC Engage project, the efficiency of stabilizing Champlain Sea clay with cement was confirmed with a significant strength increase and compressibility reduction. The objectives of this research are to 1) obtain the right binder and optimum dosage and thoroughly investigate the geotechnical properties of stabilized Champlain Sea clay; 2) test the long-term performance of DMM stabilized Champlain Sea clay; and 3) develop a rigorous design method. The introduction of DMM could have significant economic and social benefits for infrastructure development in Eastern Canada., agreement title english : Deep mixing to stabilize champlain sea clay, agreement title french : Deep mixing to stabilize champlain sea clay, agreement number : CRDPJ, agreement value : 120000.0, agreement start date : 2017-08-23, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2020-2021)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2020-2021)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada