Title: Determination of the height of the vertical filter for heterogeneous Earth dams with vertical clay core

Authors: Saeid Salehi-Hafshejani; Mohammad Shayannejad; Hossein Samadi-Broujeni; Ali-Reza Zarraty; Bahareh Soltani; Elham Mohri-Esfahani; Majedeh Haeiri-Hamedani; Saeid Eslamian; Kaveh Ostad-Ali-Askari

Addresses: Water Engineering Department, Isfahan University of Technology, Isfahan, Iran ' Water Engineering Department, Isfahan University of Technology, Isfahan, Iran ' Water Engineering Department, Shahrekord University, Shahrekord, Iran ' Water Resource Management, Islamic Azad University of Najafabad, Isfahan Province, Iran ' Water Engineering Department, Isfahan University of Technology, Isfahan, Iran ' Engineering in Irrigation and Drainage, Isfahan University of Technology, Isfahan, Iran ' Water Engineering Department, Isfahan University of Technology, Isfahan, Iran ' Water Engineering Department, Isfahan University of Technology, Isfahan, Iran ' Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

Abstract: In order to determine the height of the filter in heterogeneous Earth dam, three embankment models were provided in a flume laboratory, with the length of 4.2 m at the base of dam, the width of 60 cm and the height of 1 m and body slope 1H: 2V. In the first model, the fine-grained and coarse-grained soils were used in downstream and upstream of the dam crest respectively. In models 2 and 3 with cutting fine grained soil from the toe of the dam to the dam crest, vertical clay core was replaced. Index of a / L (a thickness of clay core and L is the length of base dam) was 1.7 and 1.10 in the second and third models, respectively. Seepage experiments in tree water height of 80 and 55 and 30 were performed.

Keywords: model of heterogeneous Earth dam; height of filter; thickness of the clay core; software PLAXIS V8.5.

DOI: 10.1504/IJHST.2019.102315

International Journal of Hydrology Science and Technology, 2019 Vol.9 No.3, pp.221 - 235

Received: 02 Mar 2016
Accepted: 05 Nov 2016

Published online: 13 Sep 2019 *

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