Download or read book An Investigation of Internal Erosion Characteristics of Various Earth Dams in Turkish Republic of Northern Cyprus written by Eriş Uygar and published by . This book was released on 1999 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Internal Erosion in Earthdams Dikes and Levees written by Stéphane Bonelli and published by Springer. This book was released on 2018-08-31 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the peer-reviewed contributions presented at the 26th Annual Meeting of the European Working Group on Internal Erosion in Embankment Dams, Levees and Dikes, and their Foundations (EWG-IE), held in Milano, Italy, on 10-13 September 2018. The meeting served as a fertile platform for discussion, sharing sound knowledge and introducing novel ideas on issues related to soil internal erosion in water retaining structures. The contributions encompass various aspects of laboratory techniques and findings, modelling and design criteria as well as prevention measures and field assessment. The book is a valuable, up-to-date tool that provides an essential overview of the subject for scientists and practitioners alike, and inspires further investigations and research.
Download or read book Internal Erosion of Dams and Their Foundations written by Robin Fell and published by CRC Press. This book was released on 2007-05-31 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal erosion and piping in embankments and their foundations is the main cause of failures and accidents to embankment dams. For new dams, the potential for internal erosion and piping can be controlled by good design and construction of the core of the dam and provision of filters to intercept seepage through the embankment and the foundations
Download or read book Internal Erosion Due to Water Flow Through Earth Dams and Earth Structures written by Raul Flores-Berrones and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Internal Erosion and Overtopping Erosion of Earth Dams and Landslide Dams written by Dongsheng Chang and published by . This book was released on 2012 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Modeling of Soil Internal Erosion Mechanism written by Hui Tao and published by . This book was released on 2018 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal erosion and piping are main causes of failures and accidents to embankment dams. The risk of internal erosion and piping for new dams can be controlled by better design and construction of the core of the dam and provision of filters to prevent seepage through the embankment and the foundations. However, the mechanism of internal erosion remains understudied due to the complex interactions between soil structures and water flow. This dissertation intends to provide quantitative analysis to address such difficulties through quantitative analysis on numerical simulation. To deeply understand the process of piping, whole process from initiation of erosion, continuation, progression to heave is established. A number of factors on piping resistance are investigated numerically by using coupled computational fluid dynamics and discrete element method. Then a simple conceptual model of piping resistance is developed considering equilibrium of a soil column at different hydraulic critical state, soil specific gravity, initial void ratio, particle size distribution, sample aspect ratio and friction coefficients. This model highlights the effect of friction on critical hydraulic gradient, which is not included in the classic Terzaghi's formulation. Another type of internal erosion, suffusion, is also reported and studied with the same numerical method. The filter criteria of suffusion are reviewed and examined. The features of suffusion and its microscopic mechanism are investigated by examining the influence of diverse initial fines contents, various initial void ratios, vibrational seepage velocities and different coarse particle size distributions. To facilitate the understanding of internal erosion and address a mass of simulation data, a community detection method is adopted to monitor the internal evolution of soil skeleton. This method extracts the particles' positions and contact forces to construct spatially embedded force networks to characterize the influence of varying coarse particle size distribution in suffusion and triaxial test scenarios. This method successfully extracts community structures that resemble force chains. We verify that the community structures have consistent features as force chains and could represent soil properties.
Download or read book Critical Gradient for Internal Erosion in Earthen D Ams written by Catherine Donohue (M. Eng.) and published by . This book was released on 2013 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Minimizing the uncertainty in predicting the critical gradient of a dam (i.e. the critical reservoir pool level) is important during the risk analysis of dams. Uncertainty leads to inexact relative risk in portfolio management; therefore it is essential to get as accurate a risk estimation as possible for each project in a portfolio. To understand the uncertainty inherent in the predictive methodologies, this thesis sets out to compare the two most commonly used predictive methodologies, Sellmeijer and Schmertmann, in the USACE portfolio in order to make a suggestion of when to use which. Both methodologies have been calibrated for a small range of ideal soil characteristics that may not reflect of existing conditions of the portfolio. This thesis concludes with the recommendation to broaden the range of applicability through additional experiments that include anisotropic conditions.
Download or read book The Time for Development and Detectability of Internal Erosion and Piping in Embankment Dams and Their Foundations written by Robin Fell and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Internal Erosion and Piping of Soils in Embankment Dams by the Slot Erosion Test and the Hole Erosion Test written by Chi Fai Wan and published by . This book was released on 2002 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Internal Erosion of Existing Dams Levees and Dikes and Their Foundations written by International Commission on Large Dams. Committee on Embankment Dams and published by . This book was released on 2015 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Geophysical Methods for Assessing Seepage and Internal Erosion in Embankment Dams written by Sam Johansson and published by . This book was released on 2005 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resistivity and Surface Wave Seismic Surveys in Geotechnical Site Investigations written by Pontus Sjödahl and published by . This book was released on 2005 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Geophysical Methods for Assessing Seepage and Internal Erosion in Embankment Dams written by Robert F. Corwin and published by . This book was released on 2005 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Internal Erosion in Embankment Dams written by Hans Mattsson and published by . This book was released on 2008 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Internal Erosion of Earth Embankments written by and published by . This book was released on 2006 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Internal Erosion and Simplified Breach Analysis written by Vijay Sadhu and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, headline news has been overwhelmed with stories about dam and levee failures including the 2005 levee breaches in New Orleans and the 2006 Kaloko Damfailure in Hawaii that resulted in seven deaths. Since 2000, state and federal agencies have reported 92 dam failures in the United States to the National Performance of Dams Program. Incidents such as these have brought both national and worldwide attention to the need for improved flood warning systems and breach prediction tools for dam embankment and levee failures. (G.J. Hanson, 2010) IESIMBA 2012 is an upgraded version of SIMBA, which has been upgraded from VB6 to C♯.NET. The Microsoft Windows-based SIMplified Breach Analysis software (SIMBA) was developed by the USDA Agricultural Research Service in cooperation with Kansas State University. The software was developed for the purpose of analyzing internal erosion, earth embankment breach test data and extending the understanding of the underlying physical processes of breach of an overtopped earth embankment. It is a research tool that is modified routinely to test the sensitivity of the output to various sub-models and assumptions. This software is a test version for use in validation testing of the simplified breach model based on stress and mass failure driven headcut movement. It runs under Microsoft Windows 98SE, Windows 2000, NT, XP, or Vista. The following Input Screens are used to guide the user through development of input data sets. · Model Properties, Dam Profile, Structure Table, Spillway Rating and Hydrograph Data After an input data set has been entered, the data is saved and simulation can be performed on the data stored in memory at any time by selecting Build option. Input and output files are stored in a fixed ASCII text format. The results of the simulation can be viewed in graphical format which are of interest to the researchers at Oklahoma State University, Stillwater by selecting View option.
Download or read book Internal Erosion in Embankment Dams written by J. Gunnar I. Hellström and published by . This book was released on 2009 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
