Behaviour of a strip footing adjacent to the existing supported excavation

Authors : Mesut GÖR, Nichirvan Ramadhan TAHER, Hüseyin Suha AKSOY

Pages : 1-11

Doi:10.5505/fujece.2023.21931

View : 18 | Download : 6

Publication Date : 2023-02-13

Article Type : Research Paper

Abstract :This study investigates the results of the numerical analysis on effect of existing supported excavation on ultimate bearing capacity insert ignore into journalissuearticles values(qult); of strip footing adjacent to supported excavation in sandy soil. The influence of distance insert ignore into journalissuearticles values(L); between the foundation and the supported excavation was studied as well as the effect of the excavation depth insert ignore into journalissuearticles values(He);. For this purpose, on a full-scale model, a series of numerical calculations were carried out to determine how insert ignore into journalissuearticles values(L); and insert ignore into journalissuearticles values(He); affected the behavior of strip foundation. Based on finite element approach, the computer software Plaxis 2D code was utilized. Non-linear hardening soil model, a sophisticated elastoplastic stressstrain constitutive soil model, was used to characterize sandy soil. Based on Mindlin\`s beam theory, the strip footing and sheet pile wall were identified as elastic beam components with significant flexural rigidity insert ignore into journalissuearticles values(EI); and axial stiffness insert ignore into journalissuearticles values(EA);. The sheet pile was installed at three different distances insert ignore into journalissuearticles values(L); away from the face of the strip foundation 1B, 1.5B and 2B, where B is the width of foundation. For each distance, three different excavations insert ignore into journalissuearticles values(He); were used with dimensions 1B, 1.5B and 2B. The numerical outcomes show that the ultimate bearing capacity insert ignore into journalissuearticles values(qult); of shallow foundation is decreased when distance between strip foundation and supported excavation is decreased, and vice versa. Additionally, insert ignore into journalissuearticles values(qult); is reduced as the depth of excavation behind sheet pile wall is increased, and vice versa.
Keywords : Epoksi kompozit, Ficus elastica, Yoğunluk, Shore D sertlik, Isıl iletkenlik katsayısı, Aktivasyon enerjisi