SBIR Phase I: Subgrade Repair and Stabilization

SBIR 第一阶段：路基修复和稳定

• 批准号: 9960065
• 负责人: Lawrence Farrar
• 金额: $ 10万
• 依托单位: RESODYN CORPORATION
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9960065&HistoricalAwards=false
• 关键词: SBIR; Phase; Subgrade; Repair; Stabilization

This Small Business Innovation Research (SBIR) Phase I project will explore a novel subgrade stabilization process that injects readily available materials into the vitrification zone, eliminating subsidence concerns as the soils densify during vitrification. The problem of in-situ soil stabilization of poor to marginal foundation and slope materials is endemic throughout the transportation system. Localized subgrade failures in highway fill and around ancillary structures, like bridges and culverts, constitute a major maintenance problem in every highway and road system. Phase I will establish process feasibility by developing a robust and versatile technology that produces subgrade synthetic rock from soils. The vitrified material will have suitable strength for soil stabilization and for structural reinforcement purposes. Experiments will demonstrate a method to modify the parent soil-rock properties by the use of additives during processing.A series of parametric tests will develop a fundamental understanding of process operational variables upon geotechnic properties of the synthetic rock that is formed.The commercial market for the technology includes highway departments (state and federal), airport authorities, municipalities, federal properties and national infrastructure agenciesm, and various industries. Application of the technology is expexted in both maintenance of subgrade and new construction where 'local' subgrade instability issues are important.

这个小企业创新研究（SBIR）第一阶段项目将探索一种新的路基稳定过程，将现成的材料注入玻璃化区，消除沉降问题，因为土壤在玻璃化过程中致密化。在整个运输系统中，对劣质或边缘地基和边坡材料进行原位土壤稳定的问题是一个普遍存在的问题。公路填方和附属结构（如桥梁和涵洞）周围的局部路基故障构成了每一条公路和道路系统的主要维护问题。第一阶段将通过开发一种从土壤中生产路基合成岩石的强大而通用的技术来建立工艺可行性。玻璃化材料将具有用于土壤稳定和用于结构加固目的的适当强度。实验将证明在加工过程中通过使用添加剂来改变母土-岩石性质的方法。一系列参数测试将发展对加工操作变量对所形成的合成岩石的土工性质的基本理解。该技术的商业市场包括公路部门（州和联邦）、机场当局、市政当局、联邦财产和国家基础设施机构以及各种行业。 该技术的应用是expexpext在路基维修和新的建设中，“局部”路基不稳定问题是重要的。