چکیده مقاله
A series of numerical analyses was performed to evaluate the effectiveness of reinforcement parameters on the differential settlements between geosynthetic geogrid reinforced soil GRS wall facing and reinforced zone under various surcharge loads Numerical modeling was verified considering data from a full scale GRS physical model wall The effects of length, stiffness, and vertical spacing of geogrids were studied in 17 short 8 m and 16 tall 20 m GRS walls using finite element analyses Stage construction was considered in all analyses, and reinforced soil was also modeled using a hardening soil constitutive model with small strain stiffness HS small The results indicated that increasing the ratio of geogrid length to wall height L/H had a minor effect on decreasing differential settlements at the top of short and tall GRS walls Increasing geogrid stiffness J was a more effective method than decreasing vertical spacing Sv to reduce relative settlements in all short and tall models Furthermore, the effectiveness of J and Sv values was reduced with increasing surcharge loads Moreover, the effectiveness of reinforcement parameters and normalized settlement values illustrated a considerable difference between the performance of short and tall GRS walls
کلیدواژهها
نویسندگان
Seyed Meisam Alavi
School of Civil Engineering, Iran University of Science and Technology IUST , Tehran, Iran
Ali Akbar Heshmati R.
School of Civil Engineering, Iran University of Science and Technology IUST , Tehran, Iran
Hamid Reza Razeghi
School of Civil Engineering, Iran University of Science and Technology IUST , Tehran, Iran
شیوه ارجاع
Alavi, Seyed Meisam and Heshmati R., Ali Akbar and Razeghi, Hamid Reza,1402,Numerical investigation on differential settlements of geosynthetic reinforced soil walls under various surcharge loading scenarios,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران