Nanoparticles and polymer for soil stabilization studies

用于土壤稳定研究的纳米颗粒和聚合物

• 批准号: 418544-2013
• 负责人: Siddiqua, Sumi
• 金额: $ 1.75万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636189
• 关键词: Nanoparticles; polymer; soil; stabilization; studies

The low strength and high compressibility of soft ground make it challenging for construction. Infrastructure on soils with inadequate load bearing capacity commonly require installation of deep foundation, for example deep piling which is not always economical or environmentally safe. Traditional mitigation measures have involved stabilizing native challenging soils with cement to improve its engineering performance. The use of cement poses threat to the environment due to high energy intensive manufacturing process and resulting high CO2 emissions are of concern, as is the slow progress towards exploiting renewable natural resources.The research will lead to innovative methodologies for environmentally sound soil stabilization on ground with soft soil deposits which generally exhibit poor engineering characteristics. Extensive and systematic experimental studies will be conducted to determine the applicability and feasibility of various stabilizing agents in soil mixing by assessing the mechanical properties of stabilized soils. Nanoparticles will be mixed with a number of soil stabilizers to effectively enhance the performance of native soils. The research will also reveal the impact of nanoparticles in the barriers of Canadian spent fuel storage systems leading the construction of advanced barriers with high performance. The advanced technology derived from the research will enhance soil strength permitting construction of safer bridges, high-rises and transportation systems in Canada. It will assist the Nuclear Waste Management Organization (NWMO) in its development of safe storage facilities for Canada's spent hazardous fuels. Technological achievements from the research will be used in application development through active collaboration with industry. The program will train engineers and scientists with expertise in novel techniques of soil stabilization and barrier materials enhancement.

软土地基强度低、压缩性大，施工难度大。承载能力不足的土壤上的基础设施通常需要安装深基础，例如深桩，这并不总是经济或环境安全的。传统的缓解措施包括用水泥加固具有挑战性的天然土壤，以改善其工程性能。水泥的使用对环境构成了威胁，因为高能源密集型的制造过程和由此导致的高二氧化碳排放令人担忧，开发可再生自然资源的进展缓慢也是如此。研究将导致在具有软土沉积的地基上进行环境无害土壤加固的创新方法，这些软土沉积通常表现出较差的工程特性。通过评估稳定土的力学性质，将进行广泛和系统的试验研究，以确定各种稳定剂在土壤搅拌中的适用性和可行性。纳米颗粒将与多种土壤固化剂混合使用，有效增强原生土壤的性能。这项研究还将揭示纳米颗粒在加拿大乏燃料存储系统屏障中的影响，从而引领高性能先进屏障的建设。这项研究得出的先进技术将增强土壤强度，从而在加拿大建造更安全的桥梁、高层建筑和交通系统。它将协助核废料管理组织(NWMO)开发加拿大乏危险燃料的安全储存设施。这项研究的技术成果将通过积极与业界合作，用于应用开发。该计划将培训具有土壤稳定和屏障材料增强新技术专业知识的工程师和科学家。