Recent records indicate that extreme climate events adversely affect the performance of earthen structures and superstructures supported on them by varying the strength and deformation properties of subsurface soil. To better design such structures, the effects of climate events must be well understood, and the conventional design procedures must be improved by incorporating the knowledge of climatology in geotechnical engineering. In this study, a new climate-adaptive design method is developed to investigate the impact of extreme climate events on the safety and serviceability performances of embedded footing through incorporating the site-specific hydrological loads such as precipitation, evapotranspiration, and water table depth to geotechnical parameters. The proposed method was applied to two arid climate sites in the United States, Austin, TX, and Albuquerque, NM. The site-specific extreme hydrological cycle was determined based on historical records. The mathematical model was solved for temporal and spatial variations of the degree of saturation and matric suction considering the hydrological loads as the upper and lower boundary conditions, respectively. The results showed that the worst performance (higher elastic settlement and lower ultimate bearing capacity) was observed during the period when the degree of saturation in the influence zone was the highest. The critical design parameters including ultimate bearing capacity and settlement obtained from the proposed method increased by 28% and 35%, respectively, in Austin, compared to those calculated from conventional approaches where the soil is assumed to be fully saturated. In Albuquerque, the increase in ultimate bearing capacity and settlement were 61% and 45%, respectively.

中文翻译：

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极端气候事件下嵌入式基础的气候适应性设计方法

最近的记录表明，极端气候事件通过改变地下土壤的强度和变形特性，对土结构和支撑在其上的上层建筑的性能产生不利影响。为了更好地设计此类结构，必须充分了解气候事件的影响，并且必须通过将气候学知识融入岩土工程来改进传统设计程序。在这项研究中，开发了一种新的气候适应性设计方法，通过将特定地点的水文载荷（如降水、蒸散和地下水位深度）结合到岩土工程中，研究极端气候事件对嵌入式基础安全性和适用性的影响。参数。所提出的方法被应用于美国的两个干旱气候地点，奥斯汀，德克萨斯州和新墨西哥州阿尔伯克基。特定地点的极端水文循环是根据历史记录确定的。分别以水文载荷为上下边界条件，求解了饱和度和基质吸力的时空变化数学模型。结果表明，在影响区饱和度最高的时期观察到最差的性能（较高的弹性沉降和较低的极限承载力）。与假设土壤完全饱和的传统方法计算的参数相比，奥斯汀的关键设计参数（包括极限承载力和沉降）分别增加了 28% 和 35%。在阿尔伯克基，