加勁土壤結構物中土壤與加勁材介面間的力學機制評估尤為重要。拉出試驗通過改變正向應力的大小與加勁材埋置長度等條件，可以更好的模擬現地加勁結構物受力後的應力-應變特性。但進行拉出試驗評估需耗費大量的人力與時間，因此本研究借用有限元素程式模擬加勁材（地工格網）的拉出行為，將模擬值與拉出試驗結果進行比對，希望藉由程式模擬替代室內試驗,期望達到節省人力成本及降低試驗時的人為誤差的可能性。

The evaluation of the Reinforced soil retaining structure between the soil and the stiffener interface in the stiffened soil structure is particularly important. The pull-out test can better simulate the stress-strain characteristics of the on-site stiffening structure by changing the magnitude of the normal stress and the embedding length of the geosynthetic material. However, it takes a lot of manpower and time to perform the pull-out test evaluation. Therefore, this study uses a finite element program to simulate the pull-out behavior of geosynthetics (geogrid), and compares the simulated value with the pull-out test results. Hopefully It is expected to save labor costs and reduce the possibility of human error during the test by replacing the indoor test with program simulation.