Impulse wave calculation – flooded pit 14/15 (Schlabendorfer See)

It shows a schematic illustration of the formation of a surge wave as a single wave at an open-cast mining pit. — Schematic illustration of the formation of a surge wave as a single wave at an open-cast mining residual hole, created with GPT-5

Brief description

The project investigated the formation and propagation of impulse waves caused by slope failures at a post-mining lake. The study was based on data on previous failures and the geotechnical properties of the terrain. The calculations were based on analytical and empirically validated methods for predicting landslide-induced impulse waves, with particular consideration given to the interaction between landslide volume, slide impact velocity, and wave formation. Relevant geotechnical parameters, such as residual friction angle, density, and thickness of the sliding mass, were identified for the calculation and systematically varied using a sensitivity analysis. This analysis made it possible to evaluate the effects of uncertainties in the input data on the calculated wave parameters and the potential forces acting on the bank.

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Project data

Core information
Project period	01/07/2024 - 30/09/2025
Type of funding	Third-party funding
Funding provider	LMBV - Lausitzer und Mitteldeutsche Bergbau-Verwaltungsgesellschaft mbH
TUD Research Priority Areas	Energy, Mobility and Environment › Water Research
Sustainable Development Goals (SDGs)	SDG 11 - Sustainable cities and communities
Keywords	Impulse waves, slope failure, sensitivity analysis