Ground Improvement - Selected Tunisian Case Histories
DOI:
https://doi.org/10.38208/jgg.v1i1.450Keywords:
Geo-drains , rigid inclusions, sand piles, settlement, embankment, tankAbstract
This paper presents a detailed analysis of three Tunisian ground improvement case histories. The first case focuses on the cause of disorders that seriously affected the stability of an oil tank, initially built on a superficial soft clay layer improved by sand piles. Due to the underestimated length of sand piles, the oil tank operations stopped after non-admissible consolidation differential settlement. Retrofit solution using micropiles’ reinforcement revealed quite satisfactory to restart the functioning of the oil tank after fifteen years. The second case deals with the reinforcement of compressible silt sand layer by floating stone columns to reduce the long-term differential settlement of a gas storage facility. Recorded measurements during the follow-up of stage construction of the storage facility permitted the assessment of numerical predictions of the settlement of reinforced soil. The third case studies the stability of access ramps of an interchange in Tunis Centre. Built numerical plan strain modelling helped for the prediction of the behaviour of embankment access on improved Tunis soft soil by geodrains. Based on recorded settlements and horizontal displacements, followed the validation of computed consolidation settlement. Adoption of suitable parameters of hardening and soft soil modelling of the behaviour of Tunis soft clay is discussed.
Published
How to Cite
Issue
Section
Copyright (c) 2022 Souhir Ellouze, Nadia Mezni, Mounir Bouassida
This work is licensed under a Creative Commons Attribution 4.0 International License.
ASPS journals are a peer-reviewed and dedicated to engineering sciences and technology. The ASPS journals provide immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Upon acceptance of an article, the corresponding author will be directed to sign a copyright form on behalf of coauthor(s). In this form, author(s) can agree that ASPS, or another company, sponsors the free access of the article. Thereby, sponsors are required to pay the free access of the article. In this case, there is no Submission, Publication or Processing fees on the charge of the authors.
In the copyright form,, author(s) of the accepted article agree to the following terms:
i) The article has not been previously published, elsewhere either in print or on-line, nor is it before another journal for consideration (If not, email explanation should be communicated immediately to the Editor).
ii) The responsibility for the contents of the paper rests upon the authors.
iii) The paper has been prepared according to the research and publication ethics listed the copyright form, also available in ASPS Website.
iv) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in the ASPS journal.
v) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in the ASPS journal.
vi) Authors are permitted to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access). Any such posting made before acceptance and publication of the Work shall be updated upon publication to include a reference to the ASPS journal and a link to the online abstract for the final published Work in the Journal.
