An Example of Road Deterioration and Stabilization Solutions With Bored Pile: Local Landslide Triggered by Gypsum Karst on the Uluyazi Campus Road (Çankiri, Türkiye)

Çiğdem Yetiş Gören; Ender Sarıfakıoğlu; Aden-gani Robleh Samireh; Başak Varli Bingöl; Juris Burlakovs

doi:10.7250/bjrbe.2026-21.678

An Example of Road Deterioration and Stabilization Solutions With Bored Pile: Local Landslide Triggered by Gypsum Karst on the Uluyazi Campus Road (Çankiri, Türkiye)

Authors

Çiğdem Yetiş Gören Civil Engineering Department, Çankırı Karatekin University, Çankırı, Türkiye https://orcid.org/0000-0002-9749-606X
Ender Sarıfakıoğlu Civil Engineering Department, Çankırı Karatekin University, Çankırı, Türkiye https://orcid.org/0000-0001-6930-000X
Aden-gani Robleh Samireh Civil Engineering Department, Çankırı Karatekin University, Çankırı, Türkiye https://orcid.org/0009-0007-6584-8407
Başak Varli Bingöl Civil Engineering Department, Çankırı Karatekin University, Çankırı, Türkiye https://orcid.org/0000-0002-7934-7482
Juris Burlakovs Civil Engineering Department, Riga Technical University, Riga, Latvia https://orcid.org/0000-0003-0269-4790

DOI:

https://doi.org/10.7250/bjrbe.2026-21.678

Keywords:

Bored piles, bearing capacity, consolidation, landslide, liquefaction potential, road safety, soil-water interaction

Abstract

A localized landslide that occurred on a specific section of the road to the Uluyazı Campus of Çankırı Karatekin University seriously threatened road safety and disrupted transportation continuity. In this study, the ground conditions of the landslide area were examined in detail. Soil parameters were determined through field observations, drilling, Standard Penetration Test (SPT) data, laboratory experiments, liquefaction potential, bearing capacity, and consolidation behaviour were analysed. The analyses showed that the soil was safe in terms of liquefaction and that the bearing capacity was at a level suitable for road construction and use. However, consolidation settlements and dissolutions in gypsum levels were identified as critical factors that could trigger landslides. To prevent landslides and ensure road safety, double rows of bored piles with a diameter of ∅120 cm, a length of 35 m, and spaced at 1.4 m intervals were connected with a cap beam. This engineering measure cut the landslide surface, limited road deformations, and ensured transportation safety. The study demonstrated the effectiveness of bored pile applications in formations where soil-water interaction was significant and offered an applicable solution for critical areas in highway engineering.

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