CLIMA/Collaborative Research: Enhancing Soil-Based Infrastructure Resilience to Climate Change: Harnessing the Potential of Fractured Soil by Adding Biopolymers

CLIMA/合作研究：增强土壤基础设施对气候变化的抵御能力：通过添加生物聚合物来利用破碎土壤的潜力

• 批准号: 2332081
• 负责人: Marta Miletic
• 金额: $ 39.76万
• 依托单位: San Diego State University Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2332081&HistoricalAwards=false
• 关键词: CLIMA; Collaborative; Research; Enhancing; Soil

This CiviL Infrastructure research for climate change Mitigation and Adaptation (CLIMA) award supports research that will investigate a novel class of soil composites and their multi-physical coupled phenomenon to mitigate climate change effects on already fractured soil-based infrastructures by enhancing their durability and resilience. In the context of materials employed in soil-based infrastructure applications, traditional and calcium-based materials, as well as synthetic products, have led to greenhouse gas emissions, directly and indirectly contributing to global warming. Thus, there is a growing need for environmentally-friendly and efficient solutions to improve soil characteristics. Biopolymers have demonstrated their effectiveness in soil stabilization for intact natural soils. However, their potential impact on the coupled thermo-hydro-mechanical behavior of already fractured soil, and their role as a fracture stabilizer has been relatively unexplored. Through this collaborative CLIMA project, the researchers will investigate the potential of biopolymers as fracture stabilizers to enhance the strength and resilience of soil-based infrastructure, particularly concerning climate-induced soil fractures. The research outcomes will be integrated into various educational and outreach activities, engaging students at different academic levels (K-12, undergraduate, and graduate) and diverse backgrounds (women and individuals from underrepresented groups) to promote research on green soil-based infrastructure. Additionally, the project aims to foster multi-institutional collaboration across different classifications (R1 and R2) by developing teaching modules, lectures, and special panel discussions on this subject at conferences.The specific goal of the research is to comprehend the complex interplay between biopolymer, water content, and fracture orientation in fractured biopolymer-soil composites. To achieve this goal, this project will advance scientific knowledge by (1) fully integrating multi-scale multi-physics theoretical formulations, experimental data, and numerical models, (2) pioneering high-resolution 4D in-situ thermo-mechanical characterization methods for biopolymer fractured soil, (3) conducting state-of-the-art thermo-mechanical characterization at the microscale, (4) identifying and quantifying the effect of biopolymers on different water populations in various pore systems, and (5) carrying out the extensive macro-scale fully-coupled thermo-hydro-mechanical experimental program. The outcomes of this CLIMA project will provide a foundational technical roadmap for including biopolymers in soil-based infrastructure, promoting environmental and community-conscious choices, and generating positive societal impacts essential for building a climate-resilient future.This project is supported by the Engineering for Civil Infrastructure (ECI) Program and the Mechanics of Materials and Structures (MoMS) Program of the Division of Civil, Mechanical and Manufacturing Innovation (CMMI) of the Directorate for Engineering (ENG).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项用于缓解气候变化和适应的民用基础设施研究（CLIMA）奖支持了研究，该研究将研究一类新型的土壤复合材料及其多物理耦合现象，以减轻对已经断裂的基于土壤的基础设施的气候变化的影响，从而提高其耐用性和耐用性。在基于土壤的基础设施应用中采用的材料的背景下，传统和钙的材料以及合成产品导致了温室气体排放，直接和间接地为全球变暖做出了贡献。因此，对环境友好和有效的解决方案的需求越来越大，以改善土壤特征。生物聚合物已经证明了它们在完整天然土壤的土壤稳定中的有效性。然而，它们对已经断裂的土壤的耦合热 - 冰科机械行为的潜在影响，并且它们作为断裂稳定剂的作用相对尚未探索。通过这个合作的Clima项目，研究人员将研究生物聚合物作为断裂稳定剂增强土壤基础设施的强度和韧性的潜力，尤其是关于气候引起的土壤裂缝的潜力。研究成果将融入各种教育和外展活动中，使学生在不同的学术层面（K-12，本科生和研究生）以及不同背景（来自代表性不足的群体的妇女和个人）的学生吸引学生，以促进对基于绿色土壤的基础设施的研究。此外，该项目旨在通过在会议上开发教学模块，讲座和特别小组讨论来促进跨不同分类（R1和R2）的多机构合作。该研究的具体目的是理解生物聚合物，水含量，水含量，水分，水分和骨折生物疾病中的骨折定位之间的复杂相互作用。为了实现这一目标，该项目将通过（1）完全整合多尺度的多物理理论公式，实验数据和数值模型，（2）开创高分辨率的高分辨率4D高分辨率的热力学特征方法，用于生物聚合物分裂土壤的生物聚合物裂纹土壤（（3）进行量级的量化量化的量化特征和量化量化的量化量化，并在量化的量化量化量化的量化量和机械性特征（4）各种孔系统中不同水种群的生物聚合物，以及（5）执行广泛的宏观量度完全耦合的热融合机械实验程序。这个Clima项目的结果将为在基于土壤的基础设施中包括生物聚合物，促进环境和社区意识的选择，并产生积极的社会影响，并为建立气候越来越多的未来产生积极的社会影响。该项目由本土基础设施（ECI）计划和结构机械设备（ECI）的机械设备（ECI）和材料机械设备（Mom and Mans of Mans of Mans of Inalial and Mans of Mans of Inalige and Mans of Inalige and Mans of Inalial Inners of Mandos of Mandoss of Manuction and Intriport）（ （CMMI）工程局（ENG）。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评论标准来评估值得支持的。