Zuverlässigkeitsanalyse für die Staumauer der Diemeltalsperre
type: CreativeWork
description: In Germany most gravity dams consisting of masonry between 1890 and 1920 were designed and built under assumptions which today do no longer satisfy the current technical standards. Therefore, many of these dams were adopted to current technical standards during the last years, in order to prove that their stability is according to present technical standards, regulations and rules. Although dams with their manifold water resources management contribute to the benefit of the society, they are critically regarded by the public because of environmental and safety aspects. The risk a dam constitutes for society can be determined by quantitative evaluation though, and may be objectively evaluated by the comparison to other risks. Thus this study is concerned with the introduction of the reliability analysis currently being developed which makes such a quantitative evaluation possible. The applicability of this method is clarified with the consent of the „Waterway and Shipping Directorate - Center” by the example of the Diemel dam. The Diemel dam is a representative example for a gravity dam, which is built in the beginning of this century and is adopted to current technical standards by safety measures. For every mode, that may lead to a dam failure, the reliability or rather the probability of failure is determined according to the first order reliability method. These modes as well as the structural and organizational measures taken in order to avoid or reduce damage are displayed in event trees. The reliability is assessed for each branch of the event tree. The overall probability of dam failure is determined by the combination of the reliabilities of all event trees. The stability of the dam is examined by conventional and numerical stability analyses under consideration of the stochastic nature of the variables. Two- and three-dimensional stability investigations for the dam were carried out under consideration of the interaction of structure and bedrock on the basi…
abstract: In Germany most gravity dams consisting of masonry between 1890 and 1920 were designed and built under assumptions which today do no longer satisfy the current technical standards. Therefore, many of these dams were adopted to current technical standards during the last years, in order to prove that their stability is according to present technical standards, regulations and rules. Although dams with their manifold water resources management contribute to the benefit of the society, they are critically regarded by the public because of environmental and safety aspects. The risk a dam constitutes for society can be determined by quantitative evaluation though, and may be objectively evaluated by the comparison to other risks. Thus this study is concerned with the introduction of the reliability analysis currently being developed which makes such a quantitative evaluation possible. The applicability of this method is clarified with the consent of the „Waterway and Shipping Directorate - Center” by the example of the Diemel dam. The Diemel dam is a representative example for a gravity dam, which is built in the beginning of this century and is adopted to current technical standards by safety measures. For every mode, that may lead to a dam failure, the reliability or rather the probability of failure is determined according to the first order reliability method. These modes as well as the structural and organizational measures taken in order to avoid or reduce damage are displayed in event trees. The reliability is assessed for each branch of the event tree. The overall probability of dam failure is determined by the combination of the reliabilities of all event trees. The stability of the dam is examined by conventional and numerical stability analyses under consideration of the stochastic nature of the variables. Two- and three-dimensional stability investigations for the dam were carried out under consideration of the interaction of structure and bedrock on the basi…
author: Tönnis, Barbara
language: ger
keywords: info:eu-repo/classification/ddc/620, Ingenieurwissenschaften, Zuverlässigkeitsanalyse, Risikoanalyse, Standsicherheit, Staumauer, Probabilistik
date published: 2003
date modified: 2026-07-30T19:43:19Z
provider: RWTH Aachen University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Publikationsserver der RWTH Aachen University