Le phénomène d’interaction sol-structure est très important pour la modélisation des systèmes barrage-fondations et doit, généralement, être réalisé dans le domaine du temps lorsque l’on souhaite prendre en compte les phénomènes non-linéaires pouvant se développer durant un séis…
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In zoned dams, it is expected that pore pressure is uniformly dissipated from the upstream to the downstream side of the core. Based on this hypothesis, the potential profile across the core in a steady state seepage flow is expected to be more or less linear and the equipotenti…
By the 1950s, big dams had become the leading technology for water resources development in the world. Today, opposition erupts against virtually every big darn project proposed or under construction. And since the 1970s—despite being promoted by a range of transnationally allie…
In the last half century, there has been a remarkable expansion in the rate and scale of dam construction worldwide. Many of these dams have been successful in providing various economic benefits. However, reservoir sedimentation decreases useful capacity of dams, shortens their…
Beavers have been described as a “keystone species” and “ecosystem engineers”, and in this dual role have great potential to physically modify their environment through tree-felling, foraging and construction activities. The resultant change in habitat heterogeneity can affect t…
Reservoir sedimentation is a serious threat to the long-term economic development of countries around the world. Often, upstream soil erosion due to agricultural activity contributes significantly to the problem. Appropriately designed soil conservation practices and reservoir s…
The historical range of the Indus River dolphin has declined by 80% since the 19th century and has been fragmented into 17 river sections by construction of irrigation barrages. Dolphin sighting and interview surveys showed that river dolphins persist in six river sections, have…
This dissertation is an environmental history of Brazil’s large dams, the country’s principal source of electricity. Hydropower undergirded economic growth, but reservoirs left huge social and environmental footprints. The country’s biggest and most infamous dams were those buil…
In the contiguous United States (CONUS), there are over 52,000 reservoirs ranging from 0.5 to 243 meters high. Collectively they hold 600,000 MCM of water. These structures have dramatically affected the river dynamics of every major watershed in the country. The operations of t…
How do we understand what to do with rivers and dams? How might rhetoric, the ancient study of persuasion, inform and shape this understanding as it relates to river restoration practices? Ecological approaches to rhetoric provide ways for engaging in decision making about dams …
Within the framework of building with nature and creating more room for the river, several measures have been implemented over the past decade in the Dutch river system to reduce flood risk without raising the embankments. Moreover, an integrated river management approach, in wh…