Workfow for the Geotechnical Landslide Model - Case Study From North Croatia

Grabar, Kristijan

doi:10.5593/sgem2019/1.2/s02.075

Cited by 1 publication

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“…The local authorities decided to launch a project to rehabilitate and remedy landslide failures. To characterize the subsurface soil conditions, investigations were conducted in six phases [20].…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Shallow Landslides Induced by Rainwater Infiltration—A Case Study from Northern Croatia

Jug,

Grabar,

Bek

et al. 2024

Geotechnics

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Climate change brings with it phenomena such as large amounts of rainfall in short periods. Infiltration of rainwater into clayey soils is a common trigger for shallow landslides on slopes. In this way, numerous shallow landslides occur in the area of northern Croatia, and a characteristic example is the landslide “Orehovčak”. To stop the sliding of the destabilized slope, it was necessary to solve the drainage of water that infiltrates the landslide body. For this purpose, detailed geotechnical investigations and monitoring were conducted. Many data were collected at the investigation site, especially soil characteristics and groundwater fluctuations. The surface soil on the slope consists of highly plastic clay, and the sliding surface was created in contact with the solid subsoil of marl, the depth of which varies positionally. The analyses confirmed that water is a slip trigger. To solve the problem, excavations and installation of deep drains were performed. The slope safety factor confirms landslide stabilization, whose calculated value after rehabilitation was Fs = 1.645. Inclinometer readings carried out after remediation show that slope slippage stopped. This confirms that the presented remediation method is very applicable to shallow landslides in northern Croatia and similar landslides around the world.

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Section: Introductionmentioning

confidence: 99%