土工格栅加筋挡土墙支护性能敏感参数分析

对某工程土工格栅加筋挡土墙支护结构采用分离式有限元法建立模型,对加筋挡土墙进行计算,对影响加筋挡土墙工作性能的填土性质、加筋间距、加筋长度和筋材弹性模量等敏感参数进行分析,通过计算并和实际监测数据进行对比分析,得出其侧向变形敏感参数对其侧向变形的影响规律,为相关工程土工格栅加筋挡土墙的设计和施工提供参考依据。

ANALYSIS ON SENSITIVE PARAMETERS AFFECTING SUPPORTING PERFORMANCE OF GEOGRID REINFORCED RETAINING WALL

Takes a geogrid reinforced retaining wall supporting structure as the study object. By using a separate finite element model, calculation and analysis were made on the parameters affecting the working performance of reinforced earth retaining wall, which are the nature of the earth-fill, reinforcement spacing, reinforcement length, and elastic modulus of reinforcement; and through comparison between calculation results and the actual monitoring data, an influence law of the sensitive parameters on the lateral deformation has been obtained. And this provides a reference for the design and construction of geogrid reinforced retaining walls in relevant projects.