Analysis of different temporary anchor points for construction of 380 kV high-voltage transmission masts

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Publication Title
Analysis of different temporary anchor points for construction of 380 kV high-voltage transmission masts

Abstract
For the construction of new high-voltage transmission lines and the improvement of existing lines temporary anchor points are necessary. In engineering practice, basically three different systems are used: deadman structures, counterweights and the so-called Spinnanker. Deadman structures are wood or steel beams or steel pipes, which are buried in the subsoil. The resistance occurs due to the passive earth pressure. For counterweights, large concrete blocks are used to activate the sliding resistance. The Spinnanker consists of an anchor plate and threaded steel bars, which are screwed into the subsoil. The resistance results from the skin friction of the steel bars. Deadman structures and counterweights are two well-known systems, but they cause a lot of tillage and use of material thus have a massive impact on the environment. The Spinnanker is a new construction system, which is minimally invasive especially with regard to soil mixing and soil compaction. Based on a real construction project in Germany these three different temporary anchor systems are analyzed regarding the design and safety concept. Finally, recommendations for the field of application, the construction and the secure and economic design are given.
Authors
Steffen Leppla; J. C. Paninski; R. Freund

Published In

18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)

Theme

E - Environment, water and energy

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