Estimation of quartz appearance in mineral type granular materials

矿物类颗粒材料中石英外观的估计

• 批准号: 24061-2007
• 负责人: Tarnawski, Vlodek
• 金额: $ 1.27万
• 依托单位: Saint Mary's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=362055
• 关键词: Estimation; quartz; appearance; mineral; type

Estimation of Quartz Appearance in Mineral Type Granular MaterialsThe high quality of modern day life depends strongly on the continuous improvement of the technology surrounding us and preserving our nature. To achieve these objectives, a long-term solution is needed to environmental issues, such as soil water pollution, ecological problems of waste disposal, soil erosion, or impacts of engineering facilities buried in the ground (high-voltage power cables, pipelines, pavements, hydrogen storage systems, or underground radioactive waste disposal). The successful computer design of the above amenities and long-term solutions to environmental issues of the ground require reliable data concerning the thermal and transport properties of soil over a full range of soil wetness, variable soil compactness and temperature. The database of these properties is very limited (a few Canadian soils only) and often incomplete. Measuring soil thermal conductivity is expensive, time consuming, and error prone. Therefore, instead of using direct measurements, the use of predictive models based on soil mineralogical data is recommended. Over the past 50 years, however, the quartz abundance in soils was not measured and it was assumed as a fitting parameter. Therefore, the project is focusing on measurements of soil mineralogical composition and soil thermal conductivity of Canadian soils representing each province and territory. The gathered data will be used for the development of a global predictive model to be applied in computer modeling of heat and moisture flow in the ground. Furthermore, the existing computer package dealing with prediction of soil thermal and hydraulic properties will be enhanced by addition of Canadian soils, thus providing reliable estimates based on easily obtainable data. The development of a portable thermal conductivity probe for field measurements is also a part of this project. Expertise gained will be shared with the geo-science and engineering sector dealing with the environmental aspects or geotechnical utilization of soils.

矿物型颗粒材料中石英外观的估计现代生活的高质量在很大程度上取决于我们周围技术的不断改进和保护我们的自然。为了实现这些目标，需要长期解决土壤水污染、废弃物处理的生态问题、土壤侵蚀、地下工程设施（高压电缆、管道、路面、储氢系统、地下放射性废弃物处理）的影响等环境问题。上述设施的成功计算机设计和地面环境问题的长期解决方案需要关于土壤湿度、可变土壤密实度和温度等各种土壤热特性和迁移特性的可靠数据。这些特性的数据库非常有限（只有加拿大的几种土壤），而且往往不完整。测量土壤热导率是昂贵的，耗时的，并且容易出错。因此，建议使用基于土壤矿物学数据的预测模型，而不是使用直接测量。然而，在过去的50年里，土壤中的石英丰度没有测量，它被假定为一个拟合参数。因此，该项目的重点是测量加拿大各省和地区土壤的矿物组成和土壤导热性。收集的数据将用于开发一个全球预测模型，用于地下热量和水分流动的计算机建模。此外，现有的用于预测土壤热和水力特性的计算机软件包将因增加加拿大土壤而得到加强，从而根据容易获得的数据提供可靠的估计。开发用于现场测量的便携式热导率探头也是该项目的一部分。所获得的专门知识将与处理土壤的环境方面或岩土工程利用的地球科学和工程部门分享。