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K0 KOŞULLARIND A YANAL TOPRAK BASINÇLARI İÇİN YAKLAŞIM

AN APPROXIMATION TO LATERAL EARTH PRESSURES FOR Ko CONDITION

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Abstract (2. Language): 
In this study, the determination of lateral earth pressures of soils or Ko parameter is considered. For this effect, the deformation and the variations in the shear stresses of the soils placed in an oedometer set up were investigated. Based on this data, a general method which can be used in the calculation of lateral pressures of soils has been proposed. The study was carried out on a cohesive soil having two different group symbol and sandy soils with different relative densities. The lateral pressure values measured by thin wall oedometer technique are in very good agreement with those obtained by calculation. In conclusion, lateral earth pressures or the Ko values are depend upon the distribution of the samples, their relative density and consistancy, the magnitude of the pre-consolidation pressure. The proposed method is a simple and economic technique as regards to the approximation and experimentation.
Abstract (Original Language): 
Bu çalışmada zeminlerin yanal toprak basınçları veya K0 parametresinin tayini ele alınmıştır. Bu etki için bir odömetre aletine konulan zemin örneğine ait kayma gerilemelerinin değişimi ve deformasyonları incelenmiştir. Bu verilere dayanarak yanal toprak basınçlarının hesaplanabildiği genel bir yöntem ileri sürülmüştür. Araştırmalar, farklı iki grup sembolüne sahip kohezif zemin ile farklı rölatif sıkılıktaki kumlu zeminler üzerinde sürdürülmüştür. İnce cidarlı odömetre tekniği ile ölçülen ve hesaplanan yanal basınç değerleri; birbirlerine oldukça yakındır. Sonuç olarak; yanal toprak basınçları veya K0 değerleri, zemin örneklerinin bozulup bozulmadığına; örneklerin rölatif sıkılık ve konsistansına, ön konsolidasyon basıncının büyüklüğüne bağlıdır. İleri sürülen yöntem, hem ekonomik hem de basit bir yöntemdir.
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REFERENCES

References: 

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Mühendislik Bilimleri Dergisi 1999 5 (1) 933-942
941
Journal of Engineering Sciences 1999 5 (1) 933-942
An Approximation to Lateral Earth Pressures for K0 Condition, M. A. Tekinsoy
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