SGER: Water Stabilization Using Microparticles

SGER：使用微粒稳定水

• 批准号: 0305000
• 负责人: David Elton
• 金额: $ 8.03万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0305000&HistoricalAwards=false
• 关键词: SGER; Water; Stabilization; Using; Microparticles

Considerable damage can occur to buildings sited on liquefiable soil (such as loose saturated sand) during strong earthquake shaking as a result of soil liquefaction. It is difficult and expensive to perform conventional in situ soil modification underneath a building without damaging the building and/or utilities and surrounding structures.This action is to support an exploratory research program involving a proposed new solution - to immobilize the porewater. The objective is to verify the practicality of this approach.The method uses custom microparticles to reduce pore pressure buildup. Two methods of installing the microparticles are investigated. This solution is untested, and is a blend of high technology chemistry, chemical engineering and civil engineering. Installing the hydrogel under a building will require special hydrogel microparticles that exhibit time-delayed activation, thus enabling all the hydrogels to be in place before activation occurs.If successful, the method will have applications in civil engineering, chemical engineering, agricultural engineering, and medicine: The immobilization of porewater can be used to undertake projects in dam rehabilitation, in environmental groundwater problems, water supply, and landfill isolation. Learning about the construction of custom microparticles may impact medical delivery technologies, and coating technologies.

位于可液化土壤（如松散饱和砂土）上的建筑物，在强烈地震作用下会因土壤液化而发生严重破坏。 在不破坏建筑物和/或公用设施及周围结构的情况下，对建筑物下方进行传统的原位土壤改性是困难和昂贵的。这一行动是为了支持一项探索性研究计划，该计划涉及一种新的解决方案-对孔隙水进行过滤。 目的是验证该方法的实用性，该方法使用定制的微粒来减少孔隙压力恢复。 两种方法安装的微粒进行了研究。 这种解决方案未经测试，是高科技化学，化学工程和土木工程的混合物。 将水凝胶安装在建筑物下需要特殊的水凝胶微粒，这些微粒表现出延迟活化，从而使所有的水凝胶在活化发生之前就位。如果成功，该方法将在土木工程，化学工程，农业工程和医学中应用：孔隙水的固定可用于大坝修复、环境地下水问题、供水和垃圾填埋场隔离等项目。 了解定制微粒的构造可能会影响医疗递送技术和涂层技术。