A Study on Dynamic Behaviors of the Reinforced Wall filled with In-Situ Soil

• Main Authors: Ta-Chiao Lo, 羅大喬
• Other Authors: Hsien-Heng Lee、Wen-Jong Chang
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/89720841456663959893

碩士 === 國立暨南國際大學 === 地震與防災工程研究所 === 93 === This research presents a real case of full scale refinforced wall in Tu chen of Taipei. The scope includes FI-wall, FI1-wall, S1-wall, and SI1-wall. S,F,and I represent on behalf of low displacement, FHWA, and secondary reinforcement respectively. The four walls were built by In-Situ soil, This research conducts inside pull out test, Standard test method for tensile, In-Site shear velocity and damping ratio test to evaluate related parameters. Then, this research develops dynamic numerical analysis of large size reinforced wall by NEARE. Based on the comparison of the displacement, axial distribution, soil strain of dynamic and static reinforced walls, this research discusses the relationship between displacement of wall surface and the areas from maximum axial force connection plane to surface. The results reveal the surface with secondary reinforcement is larger than that without secondary reinforcement by comparision the maximum axial force connection plane to surface area. Also, the displacement of surface with secondary reinforcement is lower than that without secondary reinforcement. Accordingly, it infers that maximum axial force connection plane is not equal to dynamic failure surface. Moreover, it would decide if the reinforced wall is failed or not no more one second after earthquake. Finally, this research campares the difference of results between adding force from top and bottom of walls. It illustrates the displacement and axial adding force from top is much larger than these from bottom, and the initial direction of earthquake also influences the displacement of surface significantly.