This report presents a quantitative investigation into the impact of shearing velocity variation on the obtained shear strength from DSS tests on varved clays originating from the Uppsala region, particulary within the planned reconstruction route of road 55 between Örsundsbro and Kvarnbolund in eastern Sweden. Varved clays are prevalent in this region, and understanding their mechanical properties are crucial for infrastructure projects such as road improvements.The study employs a comprehensive quantitative approach, involving the development and analysis of extensive data and statistics derived from various field and laboratory methods, such as vane tests, CPT tests, undisturbed routine analyses and DSS tests. These tests are supplemented with disturbed routine analyses, CRS tests and ground water measurments specific to the road 55 area.The results demonstrate that the shearing velocity does not correlate with the obtained shear strength. The shear strength remains independent of the shearing velocity.Consequently, the conclusion drawn is that increasing the shearing velocity during DSS tests for varved clays ias advisable, as it does not significantly affect the test results. This finding suggests the potential for improving testing efficency without compromising accuracy in geotechnical assessments for road construction projects with similar geotechnical conditions such as the road 55 reconstruction project.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:ltu-107473 |
| Date | January 2024 |
| Creators | Olsson, Magnus |
| Publisher | Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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