Finite element analysis of deep excavation: A case study

Date

2018-01-01

Author

Aktas, Tugce
Calisan, Oguz
Çokça, Erdal

Metadata

Show full item record

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

Item Usage Stats

191
views

0
downloads

World population increases day by day. In order to meet this increasing population’s basic needs such as sheltering, transportation and social activities, necessity for underground structures gradually increase. As a result, deep excavations become more important each passing day while excavations deepen. In order to design the optimum system which ensures the safety of environment, roads, structures and the excavation, the excavation properties should be modelled so that it reflects the actual geometry and boundary conditions. The ground parameters, which have crucial effect on the solution, should also be determined precisely. In this study, a deep excavation with a depth of 33.0 m performed on over-consolidated Ankara Clay is investigated. The excavation system was designed to be consisted of double-row of piles supported by multilevel anchors. Inclinometer and load cell installations on the shoring elements have been made for the inspection of the pile wall displacements and anchor forces. Back analysis is made in order to obtain the ideal ground parameters which give the measured displacements and anchor forces. This analysis is conducted by a series of Plaxis analysis in which ground parameters are changed iteratively in order to find their values that give the measured displacements and forces. For these Plaxis analyses, three different models namely; Hardening Soil, HS small and Mohr Coulomb are used and ground parameters are determined. Finally, ground parameters obtained by back analysis for different soil models and the parameters determined from field tests are compared and a correlation is proposed to simulate the behavior of over consolidated Ankara clay.

Subject Keywords

Deep excavation, Back analysis, Ankara Clay, Ground displacement

URI

https://hdl.handle.net/11511/56447

DOI

https://doi.org/10.1007/978-3-319-97115-5_1

Conference Name

Proceedings of China-Europe Conference on Geotechnical Engineering

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

İleri Yaşlardaki Türklerin Yaşam Çevreleri Ve Daha İyi Bir Yaşam İçin Öneriler İmamoğlu, Vacit (2015-01-01) Although the annual rate of population growth is decreasing in Turkey, the rate of aging population growth is increasing. This article presents an overview of the current living environments of Turkish elderly and provides some suggestions for improving their physical environments. Because of the strong family ties among Turkish family members, a kind of psychologically extended family living seems to continue and parents prefer to live next door to their children. Still, the position of the elderly seems s...
A review of renewable energy sources, sustainability issues and climate change mitigation Owusu, Phebe Asantewaa; Asumadu-Sarkodie, Samuel (2016-01-01) The world is fast becoming a global village due to the increasing daily requirement of energy by all population across the world while the earth in its form cannot change. The need for energy and its related services to satisfy human social and economic development, welfare and health is increasing. Returning to renewables to help mitigate climate change is an excellent approach which needs to be sustainable in order to meet energy demand of future generations. The study reviewed the opportunities associate...
Pseudo dynamic test results of a concrete gravity dam Aldemir, A.; Binici, Barış; Canbay, Erdem; Kurç, Özgür; Arıcı, Yalın (2014-01-01) The energy and water demands have constantly been increasing all over the world due to rising population and due to advances in science. This fact obligates the usage of natural resources to supply more and more water and energy. Of course, the most important structures that can serve this purpose are dams. However, the behaviour of dams, especially under the effect of seismic actions, is one of the most complicated problems in earthquake engineering. This is because; dams usually rest on flexible foundatio...
Assessment of recently developed inner city neighborhoods according to sustainable urban planning and design criteria: the case of Çukurambar Köken, Kayhan; Şenyel Kürkçüoğlu, M. Anıl.; Urban Design in City and Regional Planning Department (2019) The world population is increasing rapidly while the most significant effects can be observed in cities. Environmental, economic and social problems are increasing continuously along with this urban growth. Classical urban planning and design approaches are no longer sufficient to address these problems. Thus, more sustainable methods are being developed to solve them. Sustainable development concept addressing current environmental, economic and social issues are on the agenda of Turkey, similar to the wor...
Context of use of home use medical devices: a study on the identification of contextual factors of CPAP devices Aydın, Merve; Börekçi, Naz Ayşe Güzide Z.; Department of Industrial Design (2014) World population is getting older and technology is advancing rapidly over the last decades. At the intersection of these changes, there is a growing desire to provide more effective healthcare to the elder population with the help of improving technology. Medical devices have started to become miniaturized, simplified and affordable enough to find their way out of hospitals into homes. This situation has affected the design considerations on medical devices due to the change of the user groups and product ...

Citation Formats

T. Aktas, O. Calisan, and E. Çokça, “Finite element analysis of deep excavation: A case study,” presented at the Proceedings of China-Europe Conference on Geotechnical Engineering, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56447.