Yazar "Dehghanian, Kaveh" seçeneğine göre listele

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    Influence of adding fibers on engineering properties of clayey soils
    (TMMOB İnşaat Mühendisleri Odası, 2023-11-24) Etminan, Ehsan; Dehghanian, Kaveh; Göçkün, Beste Seyla; Koçak Dinç, Beste
    Recently, research into alternative materials and methods has been ongoing with the goal of creating cuttingedge solutions for building earth structures. In circumstances when other alternative materials are employed, improving the soft soils used for these structures, such as the subgrades of highway embankments, might be essential for implementing sustainable and cost-effective applications. In order to examine the utilization of Polypropylene (PP), Copolymer (CP), and Virgin Homopolymer Polypropylene (VHP) fibers to stabilize two separate high and low-plasticity clay soils, comprehensive laboratory studies have been conducted. To estimate how these mixes would behave during earthquakes, a variety of soils and the aforementioned fibers were created in the lab. The engineering features of these combinations were then studied. Investigations were conducted into the engineering behaviors of the samples as well as the results of the compaction, unconfined compression, CBR, and cyclic triaxial testing. The results of the laboratory study are presented in this work, with a focus on the usage of alternative materials that produce stronger soils during earthquakes, which has positive economic and environmental effects.
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    Sustainable soil stabilization using colemanite: experimental and numerical analysis of sandy soils for improved geotechnical properties
    (Springer Nature, 2025-06-12) Koçak Dinç, Beste; Dehghanian, Kaveh; Etminan, Ehsan
    This paper discusses the use of colemanite, a boron compound, which is a natural additive to geotechnically improved sandy soils, thus providing an eco-friendly alternative to conventional soil stabilization. Clean angular sand was the base material with the addition of colemanite in amounts of 0%, 5%, 10%, and 15% by dry mass. Various laboratory tests, such as Atterberg limits, void ratio, specific gravity, compaction, permeability, and unconsolidated undrained triaxial tests, were carried out to determine the physical and mechanical characteristics of the produced mixtures. Numerical modeling, adopted by the PLAXIS finite element program, was used to carry out simulations under various conditions for soil profiles to determine and compare soil behavior. The findings revealed that the addition of colemanite significantly reduced permeability and void ratios while enhancing stiffness and strength, with 15% colemanite yielding the best performance. This study is one of those that focuses on the introduction of colemanite, which can also act as an effective stabilizer and is a much greener and more environmentally friendly option. Apart from this, it has other advantages both economically and ecologically by reducing the amount of cement, which is a high carbon source required for building based on this. The discoveries bring in the further development of green geotechnical engineering, which also includes the construction of sustainable infrastructures.