Performance of Strip Footing on Sand Beds Reinforced with Wraparound Geotextiles: An Experimental Study
摘要
This study investigates the behavior of strip footings on the wraparound geotextile-reinforced sand beds with a relative density of 55%, using small-scale laboratory models. The optimal values of geometric parameters, such as the width of the reinforcement, the number of reinforcement layers, and the wrapped length, were determined to be 3B, 3, and 0.3b, respectively, where B is the width of the footing, and b is the width of the reinforcement layer. The influence of increasing the relative density of the soil to 80% within the reinforced zone was also examined, as well as the scenario of integrating multiple wraparound geotextile layers into a single layer. The results indicate that integrating two reinforcement layers into a single layer improves the bearing capacity for soil with a relative density of 55%. However, for soil with a relative density of 80%, this integration reduces bearing capacity. Furthermore, the bearing capacity decreases by integrating three reinforcement layers into a single layer for soil with a relative density of 55%. Notably, the integrated configurations required significantly less geotextile material compared to separate-layer setups. These findings underscore the importance of soil relative density in the performance of wraparound geotextile configurations in enhancing the load-bearing capacity of foundations.