2 sonuçlar
Arama Sonuçları
Listeleniyor 1 - 2 / 2
Yayın A case study of investigation of the lateral earth pressure under group effects of jet grout columns(Işık Üniversitesi, Lisansüstü Eğitim Enstitüsü, 2025-09-16) Durmaz, Eren; Etminan, Ehsan; Işık Üniversitesi, Lisansüstü Eğitim Enstitüsü, İnşaat Mühendisliği Yüksek Lisans Programı; Işık University, School of Graduate Studies, Master’s Program in Civil EngineeringThis thesis offers a detailed numerical case study on the impact of group effects from jet grout columns on lateral earth pressure behavior. Jet grouting, a sophisticated ground improvement technology, is extensively utilized to augment the strength and stability of poor soils. In seismically active nations like Türkiye, mitigating lateral earth stresses on retaining structures is essential for preserving structural integrity. A series of finite element calculations were performed in PLAXIS 2D to assess the lateral earth pressure distribution in a cohesive soil mass enhanced by clustered jet grout columns. To examine group effects, column spacing and layout were modified, while column length remained unchanged. The soil model was constructed using site-specific geotechnical data and simulated with suitable constitutive models to depict soft clay behavior. The results demonstrate that diminishing column spacing markedly reduces the lateral earth pressures exerted on the diaphragm wall and enhances positive group interactions among the jet grout columns. Furthermore, an optimal column arrangement improves slope stability and diminishes structural requirements on the diaphragm wall. The study highlights the necessity of considering group interactions in the design of jet grout column systems, especially in seismically active areas, and provides practical guidance for geotechnical engineers involved in urban excavations and retaining structures subjected to seismic conditions.Yayın Comparative analysis of soil-structure interaction (SSI) according to Turkish and Moroccan seismic standards(Işık Üniversitesi, Lisansüstü Eğitim Enstitüsü, 2025-06-30) Boulahiat, Zineb; Etminan, Ehsan; Işık Üniversitesi, Lisansüstü Eğitim Enstitüsü, İnşaat Mühendisliği Yüksek Lisans Programı; Işık University, School of Graduate Studies, Master’s Program in Civil EngineeringThis thesis examines the soil-structure interaction (SSI) in structures built in accordance to seismic standards codes in both counties Turkey (TBDY 2018) and Morocco (RPS 2000). The study focuses on understanding how variations in geotechnical and seismic standards impact SSI behaviors across both countries. With the purpose of analyzing the development of SSI considerations in both nations and determining the similarities and differences between TBDY2018 and RPS2000. This study conducts a comprehensive review of the literature to investigate the regional soil parameters and seismic factors that influence SSI in each nation. The findings are carried out by using finite element PLAXIS software to model SSI impacts, with a focus on how soil behavior differs between Turkey's complex, layered profiles and Morocco's generally uniform soils. The study's main focus is on analyzing soil classifications, seismic response modifications, and foundation interactions that differ according to local standards. The findings show that Turkish and Moroccan standards produce distinct settlement and load-transfer behaviors as a result of differences in soil qualities, seismic loads, and regulatory requirements. These findings highlight the necessity of customized and specialized foundation solutions that match regional circumstances in order to improve long-term structural integrity and reduce maintenance expenses for buildings.
