Paper Title:
Experimental Studies on Seepage Failure of the Top Stratum at a Weak Spot in Double-Layer Dike Foundations
  Abstract

Flood-induced piping and subsequent formation of sand boils can cause severe damage to river levees. And it is known that no piping failure occurs, without seepage exit. The paper represents an experimental study on the process and mechanism of seepage exit forming on top stratum at a weak zone in a double-layer dike foundation, using sandbox modeling. According to the practical observation, three series experiments were designed. The size, thickness and the physical and mechanical properties of the top stratum are considered. The results show that the failure mode is close related to the size of the weak zone. And the hydraulic gradient of seepage exit forming is greater than the value, computed by Terzaghi’s formula.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 5: Monitoring, Evaluation and Reinforcement Technique of Civil Engineering
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
2387-2393
DOI
10.4028/www.scientific.net/AMR.368-373.2387
Citation
H. X. Zhou, H. Cao, W. Zhang, "Experimental Studies on Seepage Failure of the Top Stratum at a Weak Spot in Double-Layer Dike Foundations", Advanced Materials Research, Vols. 368-373, pp. 2387-2393, 2012
Online since
October 2011
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Price
$32.00
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