EVALUATION OF BEARING CAPACITY INCREASE FOR WOVEN GEOTEXTILE REINFORCED SOILS IN TERMS OF WIDTH OF FOOTING

Bayram Ateş; Erol Şadoğlu

doi:10.17780/ksujes.1358122

EN TR

EVALUATION OF BEARING CAPACITY INCREASE FOR WOVEN GEOTEXTILE REINFORCED SOILS IN TERMS OF WIDTH OF FOOTING

Abstract

If it is understood that a soil medium cannot safely support the planned structure from the point of bearing capacity and settlement, various options can be applied in geotechnical engineering. These are relocation of the structure, usage of deep foundation, stabilisation of the soil, substitution of weak soil with well-graded coarse-grained soil by compaction, usage of geosynthetics, etc. These alternatives are evaluated according to the cost and availability of necessary materials and equipment. Geotextiles, one of the geosynthetic products, have been widely used for soil reinforcement recently. Therefore, the study intends to specify the soil's bearing capacity increase with geotextile and its dependence on footing width. For this aim, a testing apparatus has been produced, and the experiments have been conducted with a strip footing model on soil with various relative densities. Besides, this test setup was simulated with PLAXIS 2D software depending on the finite element method (FEM), and numerical analyses were performed. The numerical results were compared with the laboratory tests to verify parameters of M-C material model. Consequently, the study stated that the relative density of the sand, footing width, and reinforcement layer are significant factors for the bearing capacity increase of granular soils.

Keywords

ÖRGÜLÜ GEOTEKSTİL İLE GÜÇLENDİRİLMİŞ ZEMİNLER İÇİN TAŞIMA KAPASİTESİ ARTIŞININ TEMEL GENİŞLİĞİ AÇISINDAN DEĞERLENDİRİLMESİ

Öz

Bir zemin ortamının, düşünülen yapıyı taşıma gücü ve oturma açılarından güvenli olarak taşıyamayacağı tespit edilirse, geoteknik mühendisliği açısından alternatif yollara başvurulabilir. Bunlar; yapının yerinin değiştirilmesi, derin temel kullanılması, zeminin stabilizasyonu, kötü zeminin kaldırılarak, yerine iyi derecelenmiş iri taneli zeminin kompaksiyonla yerleştirilmesi, geosentetik kullanılması vb. dir. Bu seçenekler; maliyet, eldeki araç-gereç durumuna göre değerlendirilir. Geosentetik ürünlerden biri olan geotekstiller son yıllarda zemin güçlendirilmesinde yaygın olarak kullanılmaktadır. Bu çalışmada geotekstille güçlendirilmiş zeminlerin taşıma kapasitesi artışının ve bunun temel genişliği ile ilişkisinin tespit edilmesi hedeflenmiştir. Bu bağlamda, bir deney mekanizması kurulmuş ve çeşitli sıkılıklarda yerleştirilmiş kum zemine oturan temeller yardımı ile deneyler yürütülmüştür. İlave olarak; mevcut deney düzeneği sonlu elemanlar tabanında çözümleme yapan PLAXIS 2D programı ile modellendi ve sayısal analizler yapıldı. Böylece bu numerik sonuçlar model deneylerden elde edilen sonuçlar ile M-C malzeme modeli parametrelerini doğrulamak için karşılaştırıldı. Sonuç olarak, zeminin sıkılığı, donatı tabakası ve temel genişliği, granüler zeminlerin taşıma gücü artışı üzerinde etkili parametreler olduğu belirlenmiştir.

Anahtar Kelimeler

Project Number

yok

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Details

Primary Language

English

Subjects

Civil Geotechnical Engineering

Journal Section

Research Article

Authors

Bayram Ateş ^*
0000-0002-1251-7053
Türkiye

Erol Şadoğlu
0000-0003-3757-5126
Türkiye

Publication Date

June 3, 2024

Submission Date

September 10, 2023

Acceptance Date

January 12, 2024

Published in Issue

Year 2024 Volume: 27 Number: 2

DOI

https://doi.org/10.17780/ksujes.1358122

IZ

https://izlik.org/JA72XE94GH

Cite

RIS / Bibtex

APA

Ateş, B., & Şadoğlu, E. (2024). EVALUATION OF BEARING CAPACITY INCREASE FOR WOVEN GEOTEXTILE REINFORCED SOILS IN TERMS OF WIDTH OF FOOTING. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 27(2), 325-339. https://doi.org/10.17780/ksujes.1358122

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