Water Stabilization Using Microparticles

使用微粒稳定水

• 批准号: 0653894
• 负责人: David Elton
• 金额: --
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0653894&HistoricalAwards=false
• 关键词: Water; Stabilization; Using; Microparticles

A fundamentally different approach to the problem of soil liquefaction abatement will be studied. The researchers will investigate the use of hydrogel (a polymer) to immobilize porewater. Hydrogel turns porewater into an immobile, soft gel. It does not flow or liquefy or break (like grout) when shaken. The new particles will be installed underneath existing buildings founded on liquefiable soils, reducing the threat of liquefaction. The particles, coated with a time-release coating, will be placed beneath the buildings. When the coatings decay, the hydrogel immobilizes the porewater, effectively eliminating liquefaction potential.This project will create the new particles and evaluate the engineering properties of them ? consolidation and then static and cyclic strength. Nanotechnology will be used to make a coated microparticle that can be installed under existing buildings. The new particles will be made by emulsion polymerization, developed under a prior NSF award at Auburn University. Porewater immobilization can provide an efficient way to stop liquefaction due to earthquakes. The new method is much easier to use, and less risky, than existing methods, for both new and existing buildings and other structures.

将研究一种根本不同的方法来解决土壤液化的缓解问题。 研究人员将研究使用水凝胶（一种聚合物）来吸收孔隙水。水凝胶将孔隙水变成不动的软凝胶。它不会流动或凝结或破裂（如灌浆），当动摇。新的颗粒将安装在现有建筑物的下方，这些建筑物建立在可液化的土壤上，从而减少液化的威胁。这些颗粒涂上了一层缓释涂层，将被放置在建筑物下面。当涂层腐烂时，水凝胶固定孔隙水，有效地消除液化潜力。本项目将创造新的颗粒，并评估它们的工程性能？固结，然后静强度和循环强度。纳米技术将用于制造一种可以安装在现有建筑物下的涂层微粒。新的颗粒将通过乳液聚合制成，该技术是在奥本大学先前的NSF奖下开发的。孔隙水固定可以提供一种有效的方法来阻止由于地震液化。新方法比现有方法更容易使用，风险更小，适用于新的和现有的建筑物和其他结构。