A methodology is presented for determining the probability of dikes failing due to uplifting and piping using directional sampling. The study concerns one dike section in the lower river area of The Netherlands. For this dike section, the three most important random quantities are: the North-Sea water level, the river Rhine discharge, and the critical head in the event of uplifting and piping. ...

Stability assessment of existing dikes build on soft soil generates questions on the available stability calculation techniques and material models. Especially peat behaviour is not easily captured by standard design methods. This has led to disapproval, based on calculations, of dikes that have been in operation for several hundreds of years. To establish the weak points in the stability asses...

Article history: Received 7 February 2006 Received in revised form 1 August 2006 Accepted 2 August 2006 The impact of climate change on tourism has been examined in terms of changes in a destination's climate; the impact of ancillary effects such as sea-level rise has been neglected. In this study the role that coastal and other landscape features have on the attractiveness of tourist destinati...

The main purpose of this paper was to evaluate the performance of the triangular vanes located on the bed and their effect on the bed topography considering different flow conditions. For this purpose, tests were carried out on a straight flume for different flow conditions (five Froude numbers of 0.18, 0.20, 0.22, 0.24 and 0.26) by installing a series of triangular vanes at a space of 4Le (Le ...

A review of the existing ideas about prevalence, morphology and genesis neptunian dikes cutting through carbonate reef Lower Permian massifs showed ambiguity in interpretation their – they were considered as consedimentary interbiohermic cavities, interlayers associated with periodic flooding reefs, well filling tectonic cracks. New data obtained during field observations on Toratau, Yuraktau S...

We review new advances in volcano–ice interactions on Mars and focus additional attention on (1) recent analyses of the mechanisms of penetration of the cryosphere by dikes and sills; (2) documentation of the glacial origin of huge fan-shaped deposits on the northwest margins of the Tharis Montes and evidence for abundant volcano–ice interactions during the later Amazonian period of volcanic ed...

[1] We gathered seismic refraction and wide-angle reflection data from several active source experiments that occurred along the Mid-Atlantic Ridge near 35!N and constructed three-dimensional anisotropic tomographic images of the crust and upper mantle velocity structure and crustal thickness. The tomographic images reveal anomalously thick crust (8–9 km) and a low-velocity ‘‘bull’s-eye’’, from...