DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ

Sadettin Topçu; Evren Seyrek

doi:10.31796/ogummf.1362774

TR EN

DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ

Öz

Dolgu barajların uzun dönemli güvenliği, sızma akımının gerçekleştiği zeminlerin içsel stabilitesine bağlıdır. Sufüzyon/sufozyon, kohezyonsuz zeminlerde görece ince malzemelerin, iri malzemelerin arasındaki boşluklardan sızma akımıyla taşınması olarak tanımlanır. Sufüzyon/sufozyon mekanizmasına bağlı olarak gerçekleşen içsel stabilite bozulmasıyla, granüler filtrelerde geriye doğru erozyon(borulanma) veya boşluk suyu basıncındaki artışa bağlı olarak statik stabilite kaybı gözlemlenebilir. Sufüzyonun gerçekleşebilmesi için iki koşul vardır: Sızma akımının yeterli hidrolik eğime sahip olması ve malzemenin granülometrisinin danelerin taşınmasına elverişli olması. Granüler filtrelerin tasarım ve planlanmasında sufüzyon mekanizmasının önceden belirlenebilmesi için bazı yaklaşımlar geliştirilmiştir. Bu çalışmada, dane çapı dağılım eğrisini kullanarak içsel stabilite potansiyelini belirleyen Istomina, Kezdi, Kenney ve Lau ile Burenkova metotları karşılaştırılmıştır. Eskişehir ili sınırları içerisinde yer alan Gökpınar Barajı’nın yarı-geçirimli malzeme sahasındaki plastik olmayan zeminler üzerinde yapılan çalışmaya göre, yöntemlerin uygulama esasları birbirine benzedikçe aynı değerlendirme sonucunu bulma oranları artmaktadır.

Anahtar Kelimeler

Dolgu baraj , Sızma , İçsel erozyon , Sufüzyon , Granüler filtre

ASSESSMENT OF INTERNAL STABILITY POTENTIAL IN EMBANKMENT DAM GRANULAR SOILS

Abstract

The long-term safety of embankment dams depends on the soil's internal stability where seepage occurs. Suffusion/suffosion transports relatively fine materials through the voids between coarse materials by seepage flow in cohesionless soils. Backward erosion (piping) or a loss of static stability can be observed due to increased pore water pressure in granular filters with internal stability deterioration due to the suffusion/suffosion mechanism. There are two conditions for suffusion to occur: The seepage flow must have sufficient hydraulic gradient, and the granulometry of the material must be suitable for the transport of the grains. Some approaches have been developed to predetermine the suffusion mechanism in designing and planning granular filters. In this study, Istomina, Kezdi, Kenney-Lau, and Burenkova methods that determine the internal stability potential of soil using the particle size distribution curve have been compared. According to the study carried out on non-plastic (N.P) soils in the semi-permeable material field of Gökpınar Dam, which is located within the borders of Eskişehir province, the rates of finding the same evaluation result increase as the application principles of the methods are similar.

Keywords

Embankment dam , Seepage , Internal erosion , Suffusion , Granular filter

References

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Details

Primary Language

Turkish

Subjects

Civil Geotechnical Engineering , Soil Mechanics in Civil Engineering

Journal Section

Research Article

Authors

Sadettin Topçu ^*
0000-0003-1306-2502
Türkiye

Evren Seyrek
0000-0003-4373-6723
Türkiye

Early Pub Date

April 22, 2024

Publication Date

April 22, 2024

Submission Date

September 19, 2023

Acceptance Date

December 27, 2023

Published in Issue

Year 2024 Volume: 32 Number: 1

DOI

https://doi.org/10.31796/ogummf.1362774

IZ

https://izlik.org/JA23ZY74RN

APA

Topçu, S., & Seyrek, E. (2024). DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi, 32(1), 1169-1176. https://doi.org/10.31796/ogummf.1362774

AMA

1.Topçu S, Seyrek E. DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2024;32(1):1169-1176. doi:10.31796/ogummf.1362774

Chicago

Topçu, Sadettin, and Evren Seyrek. 2024. “DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ”. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi 32 (1): 1169-76. https://doi.org/10.31796/ogummf.1362774.

EndNote

Topçu S, Seyrek E (April 1, 2024) DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi 32 1 1169–1176.

IEEE

[1]S. Topçu and E. Seyrek, “DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ”, Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, vol. 32, no. 1, pp. 1169–1176, Apr. 2024, doi: 10.31796/ogummf.1362774.

ISNAD

Topçu, Sadettin - Seyrek, Evren. “DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ”. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi 32/1 (April 1, 2024): 1169-1176. https://doi.org/10.31796/ogummf.1362774.

JAMA

1.Topçu S, Seyrek E. DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2024;32:1169–1176.

MLA

Topçu, Sadettin, and Evren Seyrek. “DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ”. Eskişehir Osmangazi Üniversitesi Mühendislik Ve Mimarlık Fakültesi Dergisi, vol. 32, no. 1, Apr. 2024, pp. 1169-76, doi:10.31796/ogummf.1362774.

Vancouver

1.Sadettin Topçu, Evren Seyrek. DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi. 2024 Apr. 1;32(1):1169-76. doi:10.31796/ogummf.1362774

DOLGU BARAJ GRANÜLER ZEMİNLERİNDE İÇSEL STABİLİTE POTANSİYELİNİN DEĞERLENDİRİLMESİ

Öz

Anahtar Kelimeler

ASSESSMENT OF INTERNAL STABILITY POTENTIAL IN EMBANKMENT DAM GRANULAR SOILS

Abstract

Keywords

References

Details

Primary Language

Subjects

Journal Section

Authors

Early Pub Date

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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