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

目前使用的大多数监测设备都需要人工操作，这抑制了对土壤中边坡运动的监测。时域反射仪（TDR）是岩土工程仪器领域的一项新兴技术。本研究将开发一种TDR索/浆液系统，该系统将在土壤剪切区变形，其变形方式类似于现在在岩石节理中观察到的剪切。这些局部剪切带已在软粘土中观察到。该系统的开发将允许直接传输TDR测量值以进行实时土坡监测，并且将在本研究的背景下开发必要的兼容电缆。基于tdr的设备将允许现场或远程访问，并且可以克服与倾斜仪使用相关的许多问题。

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.