Random simplified model for assessing damage risk of buildings adjacent to a braced excavation
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摘要: 本研究旨在发展一简易模式评估深基坑工程引致邻房受损之风险。结合KJHH简易分析法和随机场理论,透过蒙特卡罗仿真,因而可以考虑岩土材料性质的不确定性。和传统分析方法相较,本研究发展的分析模式,是较合理的分析方法。本研究采用一个台北盆地实际的深基坑工桯案例,验证本研究发展的方法的适用性,并以角变量作为检验邻房受损之准则。结果显示;本研究的分析方法可以合理地评估,深基坑工程所引致的邻房损害潜能。Abstract: This study is aimed at developing a simplified model for evaluating the damage risk of buildings adjacent to a braced excavation. The present study incorporates the KJHH simplified model with the random field theory through Monte-Carlo simulation to be able to consider the uncertainty of geotechnical materials. Compared with the conventional methods, the developed simplified model can be more rational to conduct the analysis of damage risk. An actual excavation case history located in Taipei City is used to verify the developed simplified model. The angular distortion of buildings is adopted as a damage criteria for evaluating the damage of adjacent buildings. The analysis results revel that the developed simplified model is capable of assessing the excavation-induced damage potential of adjacent buildings.
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Keywords:
- random field theory /
- uncertainty /
- angular distortion
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