تحلیل عددی خاکریزهای راه مسلح به ژئوسل و بررسی پارامترهای مؤثر در عملکرد سیستم تسلیح با ژئوسل
The use of reinforced soil has been considered since long ago. Due to the improvement in technology, different kinds of reinforcement, including geosynthetic and steel types, hav...
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Veröffentlicht in: | مهندسی عمران شریف 2016-02, Vol.31.2 (4.2), p.13-23 |
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Zusammenfassung: | The use of reinforced soil has been considered since long ago. Due to the improvement in technology, different kinds of reinforcement, including geosynthetic and steel types, have emerged. Geocells, as a special type of geosynthetic, have recently been used for soil improvement. Their three dimensional geometry causes extreme lateral confinement for infill soil. This phenomenon leads to increased soil deformability and strength properties. The geocell reinforcement system is in the process of practical development due to its several advantages.Based on literature reviews in this field, theories and design methods are far behind applications in the field, especially roadway applications, due to a ack f nderstanding of their mechanisms and influencing factors.There are rather extensive laboratory studies in the field of geocell reinforcement, but because of its complexity, numerical modeling of geocell reinforcement has \ rarely been performed and most \ numerical studies are \ based on equivalent \ composite models for \ representing the \ strength and stiffness of geocell confined soil. In a composite model, the geocell reinforced soil is replaced with a soil with higher parameters. These parameters are selected based on limited test results performed on geocell reinforced soil. Therefore, generalizing them to other kinds of soil could be accompanied by further errors.In this numerical study, geocell and soil were simulated separately in 3D. Hence, this numer |
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ISSN: | 2676-4768 2676-4776 |