Experimental and numerical investigation of the evolution of piping and resulting breach in earth-fill dams
Dumlu, Emre, author.

Experimental and numerical investigation of the evolution of piping and resulting breach in earth-fill dams

Dumlu, Emre, author.

Yazar Ek Girişi
Dumlu, Emre, author.

Fiziksel Tanımlama
xxi, 126 leaves: illustrations, charts;+ 1 computer laser optical disc.

Earth-fill dams have been constructed for decades by compacting natural soil materials near the dam site. Piping is of the most important causes of their failure. In the scope of this thesis, 2 m in length homogenous earth-fill dams were constructed in a rectangular flume in the laboratory of the Izmir University of Economics. The experimental and numerical investigations on a breach by generating piping were realized with different weak zone scenarios. Three experiments were performed by placing a weak layer cross-section 5x5 cm2 at the dam bottom center. One scenario was performed by locating a weak layer of 2x2 cm2, 28 cm above the bottom. Temporal breach areas and the breach-wetted areas are evaluated on scaled screenshots by using Gauss’s area formulation. The Temporal breach discharges were calculated from the continuity equation. Furthermore, finite element analyses on the breaching of homogenous earth-fill dams in different scenarios were performed by comparing the hydraulic gradient with the critical value. In addition to the bottom and middle scenarios, two upper scenarios were also modeled. The water depths were used for each scenario to represent the experimental conditions, and some approaches were made for the weak zones. To simulate the breach mechanism with different loops, a python algorithm was integrated with the Jupyter console. As a result of the simulations, it has been observed that the findings obtained by simulations were in accord with the experimental studies, and the dams were exposed to backward piping starting from downstream towards upstream.

Konu Başlığı
Soil mechanics.
Finite element method
Earth dams -- Mathematical models

Yazar Ek Girişi
Tayfur, Gökmen,

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Civil Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Civil Engineering.
İzmir Institute of Technology: Civil Engineering--Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.

KütüphaneMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTETezT002640TA710 .D88 2022Tez Koleksiyonu