Quantitative investigations of soil movements in frozen ground phenomena
DOI:
https://doi.org/10.26485/BP/1962/11/37Keywords:
ground motion, geotechnical problems, curvature-sensitive probeAbstract
Quantitative studies of frozen ground phenomena involve linear or volumetric measurements of ground motion. These studies are typically experimental in nature and require specialised instruments and repeated observations. The results, although not always highly accurate, allow for: (a) the correct interpretation of these motions as geomorphological processes and (b) information that can be satisfactorily applied to solving geotechnical problems.
The methods and results of several studies are described. A new method for determining ground motion was developed. It involves repeated measurements of the deformation of a buried pipe, which provides information on the vertical velocity profile. A curvature-sensitive probe is placed inside the pipe. This allows for the detection of all pipe deformations. The probe consists of a pressure-sensitive strip to which electrical resistance sensors are attached. The strip's curvature can be detected based on the sensor readings. The shape of twelve pipes buried at different angles was repeatedly verified.
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