Review of the Behavior of Geogrid - Reinforced Sand Soil Supported a Shallow Footing under Different Loadings.
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| Title: | Review of the Behavior of Geogrid - Reinforced Sand Soil Supported a Shallow Footing under Different Loadings. |
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| Authors: | Al-Khafaji, Ruqayah1 ruqayahhayder1@gmail.com, Shafiqu, Qassun S. Mohammed1 qassun@yahoo.com |
| Source: | Tikrit Journal of Engineering Sciences. 2026, Vol. 33 Issue 1, p1-23. 23p. |
| Subjects: | Shallow foundations, Reinforced soils, Bearing capacity of soils, Soil stabilization, Soil mechanics, Shear strength of soils, Geosynthetics, Dead loads (Mechanics) |
| Abstract (English): | The soil can be subjected to different static loads, i.e., centric, eccentric, and inclined, and dynamic loads, i.e., repeated and seismic. Under such loads, the soil can suffer from deterioration of the soil bearing capacity, extensive deformation, and rotation. Soil reinforcement is a technique that enhances the soil response by acting as a tensile member, thereby increasing soil shear strength and improving soil performance, which in turn prevents foundation failure. Geosynthetic materials are the widely utilized reinforcing elements that include geotextile, geocell, and geogrid. Geogrid is a geosynthetic member consisting of ribs and apertures to allow interlocking with the soil. The present paper overviews the use of geogrid as a reinforcing element in sand soil supporting shallow foundations, particularly under various types of loads, including static, dynamic, and seismic. The research introduces soil-foundation reinforcement, geogrid reinforcement, and the parameters influencing the geogrid reinforcement. It also discusses the mechanism of reinforcement and the failure associated with reinforcing the soil supporting shallow footings. Furthermore, the study examines both static and dynamic loads, encompassing both experimental and numerical research. The expository data analysis is applied in the present study to analyze the available studies. The results showed that geogrid is effective in enhancing the soil performance when subjected to the different static and dynamic loads when installed with the optimum parameters. The parameters that influence the geogrid response are the depth of the first geogrid layer (u/B), the depth, width, and the number of geogrid layers (h/B), (b/B), and N, which are 0.2-0.5, 0.2-0.3, 3 to 4, and 3, respectively. [ABSTRACT FROM AUTHOR] |
| Abstract (Arabic): | تستعرض هذه المقالة سلوك التربة الرملية المدعمة بشبكات الجيوغريد (شبكات جيوتقنية) التي تدعم الأساسات الضحلة تحت تأثير أحمال ثابتة وديناميكية وزلزالية مختلفة. تُعد شبكات الجيوغريد، وهي نوع من التعزيزات الجيوصناعية المصنوعة من أضلاع بوليمرية وفتحات، وسيلة فعالة لتعزيز مقاومة القص للتربة وزيادة قدرتها على التحمل، مع تقليل الهبوط والتشوهات. تشمل المعايير الرئيسية التي تؤثر على فعالية الجيوغريد عمق الطبقة الأولى من الشبكة (نسبة u/B تقريبًا بين 0.2 و0.5)، والمسافة الرأسية بين الطبقات (نسبة h/B تقريبًا بين 0.2 و0.3)، وعرض التعزيز (نسبة b/B تقريبًا بين 3 و4)، وعدد الطبقات (N تقريبًا 3). تُظهر الدراسات التجريبية والعددية، التي تعتمد بشكل رئيسي على طرق العناصر المحدودة، أن تعزيز التربة بشبكات الجيوغريد يحسن بشكل كبير أداء التربة والأساسات تحت الأحمال الثابتة والديناميكية، رغم الحاجة إلى مزيد من الأبحاث لتأكيد فعاليته بشكل كامل تحت الظروف الزلزالية. [Extracted from the article] |
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| Database: | Engineering Source |
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