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Evaluation of Seismic Stability of Reinforced Fill Walls in Hong Kong

机译：香港钢筋填充墙的地震稳定性评估

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摘要

Owing to the increased applications of reinforced fill walls for higher economy and efficiency as well as the increased interest on seismicity in Hong Kong, a comprehensive review on the evaluation of dynamic earth pressure and water pressure under seismic loading for reinforced fill walls was carried out in this study with reference to the previous studies on these of slopes and gravity retaining walls in Hong Kong. Moreover, the methods of assessing stability and deformation of reinforced fill walls were studied. Hence, an appropriate procedure for seismic stability analysis of reinforced fill walls in Hong Kong was proposed with due consideration of internal and external instabilities of the walls. Sensitivity analyses were conducted to investigate how the stabilities of typical reinforced fill walls in Hong Kong varied with seismic coefficients. The design peak ground acceleration and acceptance criteria for seismic stability analysis of reinforced fill walls cannot be decided purely based on the technical considerations. As such, the results of the sensitivity may assist the relevant authority to select an appropriate criteria for Hong Kong with due consideration of seismic risk and financial implications to the society.
机译：由于香港增加了加筋填充墙的应用，以提高经济效益和效率，同时人们对地震的兴趣也日益增加，因此对加筋填充墙在地震荷载作用下的动态土压力和水压的评估进行了全面回顾。本研究参考了以往对香港斜坡和重力挡土墙的研究。此外，研究了评估加筋填充墙的稳定性和变形的方法。因此，在适当考虑墙体内部和外部不稳定性的基础上，提出了一种适用于香港加筋填充墙体地震稳定性分析的适当程序。进行了敏感性分析，以研究香港典型的加筋填充墙的稳定性如何随地震系数变化。不能仅基于技术考虑因素来确定钢筋填充墙的设计峰值加速度和用于地震稳定性分析的验收标准。因此，敏感度的结果可协助有关当局选择适当的香港准则，同时适当考虑地震风险和对社会的财务影响。

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