Abstract This study numerically investigates the behaviour of a geosynthetic-reinforced soil (GRS) wall under surcharge loading. Data from a full-scale GRS physical model wall was used to verify the numerical analysis. The modelling was carried out using the two-dimensional finite difference computer program FLAC to verify the post-construction performance of a full-scale GRS segmental wall under surcharge loading. The real value of compaction induced stress (CIS) specified for the vibrating plate compactor used in the physical model wall was employed in the analyses. Two procedures for modelling the CIS found in the literature were used in the analyses: uniform vertical stress applied to the surface of each layer (type I) and uniform vertical stress applied at the top and bottom of each layer (type II). The results clearly showed that the numerical analyses using compaction procedure type II accurately represent the measured values obtained from the full-scale wall under surcharge loading as well as during construction. The numerical analyses considering type I compaction modelling overestimated the measurements during both construction and surcharge application.

中文翻译：

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超载荷载下 RS 墙体的压实应力数值模拟

摘要 本研究数值研究了土工合成材料加筋土 (GRS) 墙在超载荷载下的行为。来自全尺寸 GRS 物理模型墙的数据用于验证数值分析。建模是使用二维有限差分计算机程序 FLAC 进行的，以验证全尺寸 GRS 节段墙在超载载荷下的施工后性能。分析中采用了为物理模型壁中使用的振动板压实机指定的压实诱导应力 (CIS) 的实际值。在分析中使用了文献中发现的两种 CIS 建模程序：施加到每层表面的均匀垂直应力（I 型）和施加在每层顶部和底部的均匀垂直应力（II 型）。结果清楚地表明，使用压实程序类型 II 的数值分析准确地代表了在超载载荷下以及施工期间从全尺寸墙获得的测量值。考虑到 I 型压实建模的数值分析高估了施工和附加费应用期间的测量值。