Results 251 to 260 of about 280,904 (309)

Rockfill Dams: Dams with Sloping Earth Cores

Journal of the Power Division, 1958
This paper briefly reviews the principles which govern the design of a rockfill dam and discusses six rockfill dams with which the author has been intimately acquainted since completion of the Nantahala Dam. Bear Creek Dam, one of these six, incorporates most improvements in design and construction learned from experience.
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Earth Dam Sliding Failure: Aznalcóllar Dam, Spain

2010
Mines in the area of Aznalcollar, a town in the province of Sevilla, southwest Spain, have exploited from ancient times a number of metallic minerals (zinc, lead, silver) associated with pyritic formations. The process of mineral extraction produces large volumes of pyritic tailings which, in the Aznalcollar mine, were stored under water in a large ...
Eduardo E. Alonso, Núria M. Pinyol, Alexander M. Puzrin   +2 more
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Earth Dam‐foundation interaction during earthquakes

Earthquake Engineering & Structural Dynamics, 1973
AbstractSeveral significant parameters that could affect interaction in a dam‐foundation system are discussed. These parameters are: (1) Fundamental periods of the dam and the foundation layer. (2) Lateral extent of the dam. (3) The material properties of the dam and the foundation layer.
I.M. Idriss, J.M. Mathur, H. Bolton Seed
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Interpreting Settlement Profiles of Earth Dams

Journal of Geotechnical and Geoenvironmental Engineering, 1998
This paper presents a general framework for interpreting the settlement profiles measured along the cross section of an earth dam during the construction stages. Dams showing asymmetric profiles are schematically viewed as one-dimensional nonhomogeneous fill, with variable stiffness or unit weight.
PAGANO, LUCA, DESIDERI A., VINALE F.
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Impervious Earth Fill for Höljes Dam

Géotechnique, 1966
Synopsis This Paper describes the procedures used in the construction of the impervious core of the Höljes dam in western Sweden and the results of tests and control measures. The dam is a combined earth and rock-fill structure with a steeply sloping core of impervious earth.
Erling Reinius, Hans Fagerström
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Seepage through earth dams

Journal of Geophysical Research, 1965
The free surface in two-dimensional gravity flow systems is determined by a simple equation in one iterative cycle. The base pressures at the impervious boundaries, as well as the pore-water pressures or total hydraulic heads within the flow medium, can easily be determined after the free surface is located.
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Reliability Analysis of Earth Dams

Journal of Geotechnical and Geoenvironmental Engineering, 2010
In the present study, results of reliability analyses of four selected rehabilitated earth dam sections, i.e., Chang, Tapar, Rudramata, and Kaswati, under pseudostatic loading conditions, are presented. Using the response surface methodology, in combination with first order reliability method and numerical analysis, the reliability index (beta) values ...
Babu, Sivakumar GL, Srivastava, Amit
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Designing Earth Dams Optimally

2015
Designing an earth dam is an optimization problem and is verycrucial from the view points of safety and cost of construction. Followinga scientic approach, the problem is formulated as a nonlinear programwhich aims at minimizing the material cost of dam with safety factor ofthe design as the main constraint.
G. S. R. Murthy, Katta G. Murty, G. Raghupathy   +2 more
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Seepage from small earth dams

Australian Journal of Soil Research, 1977
Tensiometers were installed to study seepage from an excavated earth tank used for farm water supplies near Badgingarra, W.A. Seepage was limited by a layer of soil about 0.2 m thick with hydraulic conductivity about one-tenth of that of soil deeper in the profile. The seepage limiting layer bounds the excavated tank.
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Earthquake Effects on Earth Dams

The Journal of the Acoustical Society of America, 1972
Possible effects of earthquakes on earth dams are outlined and illustrated by descriptions of the performance of the Hebgen Dam in the Hebgen Lake earthquake of 1959, the Sheffield Dam in the Santa Barbara earthquake of 1925 and the San Fernando Dams in the San Fernando earthquake of 9 Feb. 1971.
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