Settlement Analysis of Geosynthetics Reinforced Embankments

Abstract

Geosynthetics have been used in many construction and environmental projects in recent years, and the use of geosynthetic products as an effective element is increasing. These materials, as reinforcement, can solve the problems of building heavy structures and roads on weak soils without the need for excavation or filling, foundation, and sub-foundation operations. In this study, using different number and type of geosynthetic materials with two types of soil profiles in different layers of these soils, settlement of these soil layers are investigated. The road superstructures consist of three layers. Different geosynthetic are modeled with the finite element program, PLAXIS, to examine the modeling results. By application of Geogrids as different layers of the road, the amount of settlement decreases significantly. It can be seen that the most reduction occurs in application of three geogrids in soil profile though the total displacement decreases by increasing the number of geogrids. On theother hand, it can be concluded that application of geotextiles does not affect the settlement regardless of the layer numbers. Moreover, it can be concluded that the order of soil layers does not have any significant effect on the settlement rate.

Keywords

• Geogrid
• Geotextile
• PLAXIS
• Settlement
• Embankment

References

1. [1] Kazemian S., Huat B.K. (2010). Assessment of Stabilization Methods for Soft Soils by Admixtures, International Conference on Science and Social Research (Cssr2010), December 5-7, 2010, Kuala Lumpur, Malaysia.
2. [2] Majedi P, Celik S, Akbulut S (2016). Finite Element Modelling of Road Embankments Designed As Reinforced Slope, 1st National Young Geotechnic Engineers Symposium, Erzurum, Turkey.
3. [3] Paravita Sri Wulandaria, Daniel Tjandraa, Analysis of Geotextile Reinforced Road Embankment Using Plaxis 2D, the 5th International Conference of Euro Asia Civil Engineering Forum (Eacef-5).
4. [4] Andaç Bayram, Reinforcement of Airport Runway Fillings Using Geosynthetic Materials, June 2006, Master of Sciences Thesis, ITU, Turkey.
5. [5] S.K.Ahirwara , J.N. Mandala, Finite Element Analysis of Flexible Pavement With Geogrids, Transportation Geotechnics and Geoecology, Tgg 2017, 17-19 May 2017, Saint Petersburg, Russia.
6. [6] Salahudeen, A. B. and Sadeeq, J. A, Numerical Modelling Of Soil Reinforcement Using Geogrids, February 23- 25, 2016, Fourth International Conference on Engineering LAUTECH Ahmadu Bello University, Zaria, Nigeria.
7. [7] Edi̇nçli̇ler, A. Murat Çalikoğlu, Improving the Seismic Performance of Low-Rise Structures Using Geosynthetics: Experimental Study, Seventh National Geosynthetics Conference 11–12 May 2017, Boğaziçi university, Istanbul.
8. [8] Şahin Çağlar Tuna, Eyyüb Karakan, Selim Altun, Investigation of Mechanical Behaviors of Geotextile Reinforced Sand Soils, İMo Teknik Dergi, 2015 7015-7022, Yazi 430, Teknik Not.

9. [9] Başak Çetin Karagül, Alignment of Road Fills Using Geogrid, January 2007, Master of Science thesis Istanbul Technical University.
10. [10] Gizem Çakar, Laboratory Investigation of Behavior of Geotextile Reinforced Clays, Balikesir, 2016 Master of Science thesis, Balikesir Üniversitesi.
11. [11] Mustafa Kocaer, Hazi̇ran 2011, Geosenteti̇kleri̇n Karayolu Yapilarinda Kullanimi: Türki̇ye Örnekleri̇, Master of Science thesis, Istanbul Technical University.
12. [12] Heerten, Georg, and J. Klompmaker. Improving the bearing capacity of soils with geosynthetics." 8th International Geotechnical Conference, Bratislava, Slovakia. 2007.
13. [13] Yedinci Ulusal Geosentetikler Konferansi 11–12 Mayis 2017, BoğaziçiÜniversitesi, İstanbul.
14. [14] Francesca La Torre, Unifi, Italia (Avrupa Yol Yöneticileri Konferansi Yol Güvenliği Teknik Ekibinde (Cedr Tgrs) Anas Şirketini Temsilen), Haziran, 2018.
15. [15] Mustafa Alptekin Yolda, Karayollarinda Yol Siniflandirmasi ve Tip Enkesitlerin İncelenmesi: Eminönü-Fatih Örneği, Yüksek Lisans Tezi, Eylül 2008, İstanbul Teknik Üniversitesi.
16. [16] Georg Heerten Improvement of Soil Properties, Bratislava on June 4 – 5, 2007.
17. [18] Https://www.Makinsantrailer.Com.Tr/Kuvet-Tipi- Damper
18. [19] Hamdy Faheem Mohamed Hassan, 30 December 2014, 2d Plaxis Finite Element Modeling Of Asphalt- Concrete Pavement Reinforced With Geogrid, Article, Faculty of Eng., Minia University, Civil Engineering Department, Egypt
19. [20] Mostafa Deep Hashem, Ahmed Mousa Abu-Baker, December 2013, Numerical Modeling Of Flexible Pavement Constructed on Expansive Soils, Civil Engineering Department Faculty of Engineering, Al- Minia University, Egypt
20. [21] A. Arda Bahadir, M. İnanç Onur, Deri̇n Kazi Destek Si̇stemi̇ Tasariminda Zemi̇n Modeli̇ Seçimi̇: Bi̇r Vaka Anali̇zi̇ 7. GeoTeknik Sempozyumu 22-23-24 Kasim 2017, İstanbul.
21. [22] Waqed H. Almohammed, Mohammed Y. Fattah, Sajjad E. Rasheed, 2018, Numerical Analysis Of The Effect Of Geocell Reinforcement Above Buried Pipes on Surface Settlement And Vertical Pressure, World Academy Of Science, Engineering and Technology International Journal of Geotechnical and Geological Engineering.
22. [23] Bahatin GüNdüZ, December 2008. Analysis Of Settlements Of Test Embankments During 50 Years- A Comparison Between Field Measurements and Numerical Analysis, Master’s Dissertation. Lunu University.
23. [24] Jorge G. Zornberg, Functions and applications of geosynthetics in roadways, Transportation Geotechnics and Geoecology, TGG 2017, 17-19 May 2017, Saint Petersburg, Russia.