Time Domain Reflectometry (TDR) Cable and Grout System to Telemetrically Monitor Soil Slope Stability

用于遥测监测土壤坡度稳定性的时域反射计 (TDR) 电缆和灌浆系统

• 批准号: 9523236
• 负责人: Charles Dowding
• 金额: $ 14万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9523236&HistoricalAwards=false
• 关键词: Time; Domain; Reflectometry; TDR; Cable

ABSTRACT CMS9523236 PI: Dowding and Finno, Northwestern University Monitoring of slope movement in soils has been inhibited by the level of manual operation required for most monitoring equipment in current use. Time Domain Reflectometry (TDR) is an emerging technology in the field of Geotechnical instrumentation. This research will develop a TDR cable/grout system that will deform in soil shear zones, in a manner similar to that now observed with shearing in rock joints. These localized shear zones have been observed in soft clays. Development of this system will allow direct transfer of TDR measurements for real time soil slope monitoring, and the necessary compliant cables will be developed in the context of this research. The TDR-based device will allow on-site or remote access, and can overcome many of the problems related to inclinometer use.

摘要CMS 9523236 PI：Dowding和Finno，西北大学 目前使用的大多数监测设备都需要人工操作，这限制了对土壤中边坡运动的监测。 时域反射技术（TDR）是岩土工程测量领域的一项新兴技术。 本研究将开发一种TDR电缆/灌浆系统，该系统将在土壤剪切带中变形，其变形方式类似于目前在岩石节理中观察到的剪切变形。 这些局部剪切带已在软粘土中观察到。 该系统的发展将允许直接传输TDR测量的真实的时间土质边坡监测，和必要的兼容电缆将在本研究的背景下开发。 基于TDR的设备将允许现场或远程访问，并可以克服与测斜仪使用有关的许多问题。