Details
| Titel in Übersetzung | Infiltration-related processes in covering sea and estuarine dikes and their influence on stability |
|---|---|
| Originalsprache | Deutsch |
| Seiten (von - bis) | 133-184 |
| Seitenumfang | 52 |
| Fachzeitschrift | Küste |
| Jahrgang | 2019 |
| Ausgabenummer | 87 |
| Publikationsstatus | Veröffentlicht - 2019 |
Abstract
This status report deals with the processes and effects of infiltration, as they occur in particular during wave overflow on the inner slope of a dike. Given the predicted sea-level rise, this scenario is crucial for dike safety, provided that the existing dikes are not strengthened. In this context, recent studies since the publication of the "Recommendations for the Execution of Coastal Protection Works" (EAK, 2002) are discussed. As a first basis for evaluation, the condition assessment of dikes using evaluation criteria is covered. In addition, the structure of the dike top soil is examined, whereby the water storage capacity and the shrinkage behaviour leading to crack formation are referred to. The cracks result in a high permeability of the dike cover of about 1-104 m/s. In the event of water infiltration, the dike cover softens, reducing shear strength and thus dike safety. High water levels in the dike core also have an unfavourable impact on stability, the effects and scale are illustrated by means of exemplary test results. Recommendations on calculation methods and measures to increase the dike safety are given as well as an outlook in respect of the coming climate change.
Schlagwörter
- Climate change, Dike safety, Evaluation criteria, Infiltration process, Sea and estuary dikes
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Ozeanographie
- Ingenieurwesen (insg.)
- Meerestechnik
Ziele für nachhaltige Entwicklung
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in: Küste, Jahrgang 2019, Nr. 87, 2019, S. 133-184.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung
}
TY - JOUR
T1 - Infiltrationsbedingte Prozesse in der Abdeckung von See- und Astuardeichen und deren Einfluss auf die Standsicherheit
AU - Achmus, Martin
AU - Pohl, Martin
AU - Schüttrumpf, Holger
AU - Temmler, Helmut
PY - 2019
Y1 - 2019
N2 - This status report deals with the processes and effects of infiltration, as they occur in particular during wave overflow on the inner slope of a dike. Given the predicted sea-level rise, this scenario is crucial for dike safety, provided that the existing dikes are not strengthened. In this context, recent studies since the publication of the "Recommendations for the Execution of Coastal Protection Works" (EAK, 2002) are discussed. As a first basis for evaluation, the condition assessment of dikes using evaluation criteria is covered. In addition, the structure of the dike top soil is examined, whereby the water storage capacity and the shrinkage behaviour leading to crack formation are referred to. The cracks result in a high permeability of the dike cover of about 1-104 m/s. In the event of water infiltration, the dike cover softens, reducing shear strength and thus dike safety. High water levels in the dike core also have an unfavourable impact on stability, the effects and scale are illustrated by means of exemplary test results. Recommendations on calculation methods and measures to increase the dike safety are given as well as an outlook in respect of the coming climate change.
AB - This status report deals with the processes and effects of infiltration, as they occur in particular during wave overflow on the inner slope of a dike. Given the predicted sea-level rise, this scenario is crucial for dike safety, provided that the existing dikes are not strengthened. In this context, recent studies since the publication of the "Recommendations for the Execution of Coastal Protection Works" (EAK, 2002) are discussed. As a first basis for evaluation, the condition assessment of dikes using evaluation criteria is covered. In addition, the structure of the dike top soil is examined, whereby the water storage capacity and the shrinkage behaviour leading to crack formation are referred to. The cracks result in a high permeability of the dike cover of about 1-104 m/s. In the event of water infiltration, the dike cover softens, reducing shear strength and thus dike safety. High water levels in the dike core also have an unfavourable impact on stability, the effects and scale are illustrated by means of exemplary test results. Recommendations on calculation methods and measures to increase the dike safety are given as well as an outlook in respect of the coming climate change.
KW - Climate change
KW - Dike safety
KW - Evaluation criteria
KW - Infiltration process
KW - Sea and estuary dikes
UR - http://www.scopus.com/inward/record.url?scp=85106741882&partnerID=8YFLogxK
U2 - 10.18171/1.087113
DO - 10.18171/1.087113
M3 - Artikel
AN - SCOPUS:85106741882
VL - 2019
SP - 133
EP - 184
JO - Küste
JF - Küste
SN - 0452-7739
IS - 87
ER -