INVESTIGATION THE EFFECT OF EMBEDMENT DEPTH ON SHEET PILE WALL

Year 2020, Volume: 8 Issue: 2, 552 - 561, 25.06.2020

Recep Akan

https://doi.org/10.21923/jesd.690172

Abstract

Within the scope of this study, a single anchored sheet pile wall that has a free excavation height of 9 m has been designed in sand soils which have different internal friction angles where the groundwater level is 3 m. This design has been solved by the conventional design method in different combinations by increasing the calculated theoretical embedment depth in different proportions and changing the depth of anchor so that the variation of the maximum bending moment formed in the anchorage force and sheet pile section has been examined. The results showed that the anchor force decreases and the maximum bending moment increases while the ratio of the actual depth to the theoretical depth of embedment increases and the depth of anchor decreases. In order for the anchorage force and maximum bending moment to be minimum, it is recommended that the anchorage depth is less than 3.5 m and as high as possible, and the actual / theoretical embedment depth ratio is around 1.28 - 1.35.

Keywords

Sand, Sheet Pile Wall, Anchor, Deep Excavation, Embedment Depth

PALPLANŞ DUVARLARDA ÇAKMA DERİNLİĞİNİN ETKİSİNİN İNCELENMESİ

Abstract

Bu çalışma kapsamında, yeraltı su seviyesinin 3 m olduğu farklı içsel sürtünme açısına sahip kum zeminlerde 9 m serbest kazı yükseliğine sahip tek ankrajlı palplanş duvar tasarlanmıştır. Bu tasarım, hesaplanan teorik çakma derinliğinin farklı oranlarda arttırılarak ve ankraj derinliği değiştirilerek farklı kombinasyonlarda geleneksel tasarım metodu ile çözülmüş ve ankraj kuvveti ile palplanş kesitinde oluşan maksimum eğilme momentinin değişimi incelenmiştir. Sonuçlar gerçek çakma derinliğinin teorik çakma derinliğine oranı arttıkça ve ankraj derinliği azaldıkça ankraj kuvvetinin azaldığını, maksimum eğilme momentinin ise arttığını ve dalgalı bir davranış sergilediğini göstermiştir. Ankraj kuvveti ve eğilme momentinin minimum olması için ankraj derinliğinin 3.5 m’ den küçük ve mümkün olduğunca yukarıda, gerçek/teorik çakma derinliği oranı ise 1.28 – 1.35 civarlarında olması önerilmektedir.

Keywords

Kum, Palplanş Duvar, Ankraj, Derin Kazı, Çakma Derinliği

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