岩土工程学报2026，Vol.48Issue(5)：948-956,9.DOI:10.11779/CJGE20250242
筋材连接形式对有限空间加筋土挡墙抗震性能影响
Effect of reinforcement connection form on seismic performance of reinforced soil retaining walls in limited space
摘要
Abstract
In order to understand the influence of the reinforcement connection form on the seismic performance of the SMSE wall,shaking table tests are carried out on three reinforcement connection types:non-connection,friction connection and mechanical connection.The evolution laws of acceleration response,panel displacement,dynamic characteristics,reinforcement strain,and potential fracture surface of the three groups of tests are explored.The results show that the acceleration amplification coefficient of the three groups of experiments is nonlinearly distributed along the wall height and reaches the peak value at the top of the retaining wall.The peak values of permanent displacement of the wall are 0.138%,0.034%and 0.015%of the wall height,respectively,the mechanical connection is reduced by 89.13%compared with the non-connection,and the rewinding-type connection is reduced by 75.36%compared with the non-connection.After the test,the natural frequency of the retaining wall decreases,with a decrease of 1.22%,0.81%and 0.52%,respectively.The tensile force increment of the reinforcement increases with the increase of input acceleration amplitude,and changes nonlinearly along the wall height.The measured potential fracture surface form is different from the existing standard fracture surface form,and the mechanical connection potential fracture surface is a double-folded line that passes through the wall toe and stabilizes the steep slope surface along the rear.The comprehensive test data show that the mechanical connection of the reinforcement shows etter seismic performance in terms of permanent displacement and dynamic characteristics of the wall than the rewinding type of reinforcement,but attention should be paid to the reinforcement of the connection behind the wall in the construction design.关键词
土工合成材料/有限空间加筋土挡墙/振动台试验/连接形式Key words
geosynthetics/limited space reinforced earth retaining wall/shaking table test/form of connection分类
建筑与水利引用本文复制引用
蔡晓光,袁超,李思汉,徐洪路,李鑫鑫,赵志成..筋材连接形式对有限空间加筋土挡墙抗震性能影响[J].岩土工程学报,2026,48(5):948-956,9.基金项目
中国地震局工程力学研究所基本科研业务费专项项目(2025D05,2024D11) （2025D05,2024D11）
河北省高等学校科学研究青年拔尖人才计划项目(BJK2024034) （BJK2024034）
中央高校基本科研业务费研究生科技创新基金项目(ZY20240317).This work was supported by Scientific Research Fund of Engineering Mechanics,China Earthquake Administration(Grant Nos.2025D05,2024D11),Youth Top Talent Program for Scientific Research in Higher Education Institutions of Hebei Province(Grant NO.BJK2024034),Fundamental Research Funds for the Central Universities(Grant No.ZY20240317). （ZY20240317）
