Determination of the Location of the sheet pile wall  Placed within the Impermeable Dam Base Using the Finite Difference Method

Barış Kaçak; Ertugrul Ordu; Reşat Mutlu

Makale detayları

Determination of the Location of the sheet pile wall Placed within the Impermeable Dam Base Using the Finite Difference Method

Yazarlar:

Barış Kaçak | Ertugrul Ordu | Reşat Mutlu

Yayıncı:

Kirikkale University

Ana Başlıklar:

Civil Geotechnical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.16 Issue 1, pp.356-372

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001310734

pISSN:

1308-5506

Anahtar kelimeler:

Özet:

 In water currents within the ground, a boiling event may occur if the flow direction is opposite to gravity in the outlet area of the flow floor. To prevent a boiling event, the length of the flow path is increased or a weight filter is used in the area where there is a risk of boiling. Increasing the length of the current path is possible by creating an impermeable layer in the upstream inlet section of the dam or by making an impermeable sheet pile wall under the dam. The construction of the sheet pile wall under an impervious dam is expensive and difficult. In this study, the sheet pile wall under the dam wall was placed in various positions between upstream region and downstream outlet region of the dam, and the value of the dams seepage rate was analyzed by finite difference method. Vertical seepage rate values and safety numbers against vertical boiling have been found by taking the gradient of the hydraulic head. It has been seen that the sheet pile wall placed in the exit zone of the dam is the solution that minimizes the leakage rate, and, therefore, maximizes the vertical safety number against boiling.

 In water currents within the ground, a boiling event may occur if the flow direction is opposite to gravity in the outlet area of the flow floor. To prevent a boiling event, the length of the flow path is increased or a weight filter is used in the area where there is a risk of boiling. Increasing the length of the current path is possible by creating an impermeable layer in the upstream inlet section of the dam or by making an impermeable sheet pile wall under the dam. The construction of the sheet pile wall under an impervious dam is expensive and difficult. In this study, the sheet pile wall under the dam wall was placed in various positions between upstream region and downstream outlet region of the dam, and the value of the dams seepage rate was analyzed by finite difference method. Vertical seepage rate values and safety numbers against vertical boiling have been found by taking the gradient of the hydraulic head. It has been seen that the sheet pile wall placed in the exit zone of the dam is the solution that minimizes the leakage rate, and, therefore, maximizes the vertical safety number against boiling.

 In water currents within the ground, a boiling event may occur if the flow direction is opposite to gravity in the outlet area of the flow floor. To prevent a boiling event, the length of the flow path is increased or a weight filter is used in the area where there is a risk of boiling. Increasing the length of the current path is possible by creating an impermeable layer in the upstream inlet section of the dam or by making an impermeable sheet pile wall under the dam. The construction of the sheet pile wall under an impervious dam is expensive and difficult. In this study, the sheet pile wall under the dam wall was placed in various positions between upstream region and downstream outlet region of the dam, and the value of the dams seepage rate was analyzed by finite difference method. Vertical seepage rate values and safety numbers against vertical boiling have been found by taking the gradient of the hydraulic head. It has been seen that the sheet pile wall placed in the exit zone of the dam is the solution that minimizes the leakage rate, and, therefore, maximizes the vertical safety number against boiling.

 Zemindeki su akımlarında, zeminin çıkış bölgesinde akım yönü yerçekimine zıt yönde ise kaynama boiling olayı gerçekleşebilir. Kaynama olayını önlemek için akım yolu uzunluğu arttırılır veya kaynama riskinin bulunduğu bölgede ağırlık filtresi kullanılır. Akım yolu uzunluğunun arttırılması geçirimsiz barajlarda barajın memba giriş bölümünde geçirimsiz bir tabaka oluşturulması veya baraj altına geçirimsiz palplanş perdesi yapmakla mümkündür. Palplanş Perdesinin geçirimsiz baraj altında inşaası masraflı ve zordur. Bu çalışmada baraj duvarı altındaki Palplanş perdesi barajın memba giriş bölgesi ile barajın mansap çıkış bölgesi arasındaki çok sayıda konuma yerleştirilmiş ve barajın sızıntı hızının değeri sonlu farklar yöntemi ile analiz edilmiştir. Hidrolik yükün gradyanı alınarak, Düşeydeki sızıntı hızı değeri ve Kaynamaya karşı güvenlik sayıları bulunmuştur. Barajın çıkış bölgesine yerleştirilen palplanş perdesinin Düşey sızıntı hızını en aza indiren ve bundan dolayı Kaynamaya karşı düşey güvenlik sayısını maksimize eden çözüm olduğu görülmüştür.

Makale detayları

Determination of the Location of the sheet pile wall Placed within the Impermeable Dam Base Using the Finite Difference Method

Yazarlar:

Barış Kaçak | Ertugrul Ordu | Reşat Mutlu

Yayıncı:

Kirikkale University

Ana Başlıklar:

Civil Geotechnical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.16 Issue 1, pp.356-372

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001310734

pISSN:

1308-5506

Seepage analysis

Boiling Phenomenon

Sheet pile wall

Finite Difference MethodSızıntı Analizi

Kaynama Olayı

Palplanş Perde

Sonlu Farklar Yöntemi

Sayı

Makale detayları

Yazarlar: Barış Kaçak | Ertugrul Ordu | Reşat Mutlu

Yayıncı: Kirikkale University

Ana Başlıklar: Civil Geotechnical Engineering

Dergi: International Journal of Engineering Research and Development Vol.16 Issue 1, pp.356-372

Belge Tipi: Makale

Yayın Tarihi: 1/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001310734

pISSN: 1308-5506

Sayı

Yazarlar:

Barış Kaçak | Ertugrul Ordu | Reşat Mutlu

Yayıncı:

Kirikkale University

Ana Başlıklar:

Civil Geotechnical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.16 Issue 1, pp.356-372

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001310734

pISSN:

1308-5506