The assessment of deep excavation performance of a high rise residential complex, in Bayrakli, Izmir

Download

index.pdf

Date

2022-6-10

Author

Turgut, Atalay Mert

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

144
views

183
downloads

The need to deep excavation projects is increasing with urbanization. Consistently the excavation depths are also increasing. Therefore, the optimum design of the excavation system becomes more important. An optimum design of an excavation system can be developed with the selection of a suitable excavation system in terms of quality, duration, and cost and with the estimation of representative soil properties. On the other hand, the cost of the deep excavation systems has become a significant portion of the overall project budget. The Single Bore Multiple Anchor (SBMA) system is an important development in the ground anchor industry to make the optimum design. A deep excavation system of a high-rise building constructed in Bayraklı, İzmir, is examined in this study. The high-rise building consists of three blocks: A, B, and C. A total of 20 cone penetration tests (CPT) and 25 boreholes were performed for the site investigation. The deep excavation system was monitored with 18 inclinometers and 9 load cells. The construction area is divided into seven regions, and each region is studied separately for the estimation of soil parameters and the finite element analysis with Plaxis 2D. Each inclinometer reading is compared with analysis results. Estimated soil parameters are calibrated through scaling of the stiffness separately for cohesionless and cohesive soil layers. As a result, it is shown that the adopted assessment scheme provides reasonable agreement with field inclinometer readings; which are also concluded to be consistent with recommendations available in the literature.

Subject Keywords

Deep Excavation, Finite Element Method, Back Analysis, SBMA, Plaxis 2D

URI

https://hdl.handle.net/11511/97734

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Two dimensional finite element modeling for the multi tier pile wall with anchor shoring sysytem Özyürek, Yunus Emre; Huvaj Sarıhan, Nejan; Department of Civil Engineering (2019) For deep excavations (such as greater than 20-25 m excavation depths) in urban areas, where there is strict deformation limits, multi-tier pile wall shoring system with soil anchors is becoming more widely used, since the system with one level of piles becomes insufficient or unfeasible. In this study, parameters affecting the behavior of multi-tier pile wall retaining system is investigated via two-dimensional finite element method. Firstly, a 30 m excavation is carried out with a multi-tier shoring system...
Numerical comparison of retaining system behavior for a deep excavation case with and without ground improvement Maghsoudloo, Arash; Ahmadinaghadeh, Reza; Toker, Nabi Kartal (2012-11-02) In the construction of deep excavations in urban areas, the safety of adjacent ground and structures becomes major concern for engineers. In soft clays, the main reason for occurrence of large deflections of soil support systems in excavations is instability of the excavation base. This paper will focus on analyzing and comparing design of an excavation with and without jet grout improvement applied to the excavation base by employing the finite-element code PLAXIS. A well-documented case study is analyzed,...
Investigation of the effect of soil structure interaction on the behavior of concrete faced rockfill dams and assessment of current analysis methodologies Erdoğan, Emrah Erşan; Arıcı, Yalın; Department of Civil Engineering (2012) CFRD (Concrete Faced Rockfill Dam) construction becomes more frequent recently not only because of its secure nature, but also its economical cost where its built up material is feasible to obtain. Although CFRDs are known to be safe compared to other dam types, it is behavior during an earthquake loading still not a well-known aspect since it is mostly constructed in regions of low seismicity until now. Considering this fact, this study‟s primary purposes are set to find the mathematical model size of a “l...
An Integrated regression-bootstrap sampling scheduling method for probabilistic duration range estimation of construction projects Barış, Özgür; Sönmez, Rifat; Department of Civil Engineering (2019) The estimation of project duration is important in construction projects, since it directly affects the costs and the success of the projects. Schedule risks can be determined along with the duration estimations in order to assess the possibility of delay penalties and additional costs. Therefore, the accuracy of the estimation of project duration range is very crucial in construction industry to assess the schedule risks. This thesis presents an integrated approach of non-parametric bootstrap sampling meth...
Assessment of damage zone thickness and wall convergence for tunnels excavated in strain-softening rock masses Satici, Ozguer; Topal, Tamer (2021-02-01) There are two fundamental issues in all underground excavations, which are safety and economy. To ensure safety and expedite excavations, level of tunnel wall convergences and damage zone thickness should be predicted before the excavation starts, should be determined accurately, and monitored during the excavation by the tunnel designer. However, accurate prediction of these two parameters is difficult unless in-situ stress and deformation measurement tools are used. In this study, damage zone thickness an...

Citation Formats

A. M. Turgut, “The assessment of deep excavation performance of a high rise residential complex, in Bayrakli, Izmir,” M.S. - Master of Science, Middle East Technical University, 2022.