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Model test study of a landslide stabilized with piles and evolutionary stage identification based on thermal infrared temperature analysis
Ist Teil von
Landslides, 2020-06, Vol.17 (6), p.1393-1404
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2020
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
A model test of a landslide stabilized with piles can reproduce the process of landslide occurrence and behavior of the stabilizing piles. With a development of real-time multiple filed data acquiring systems, deformation and failure mechanism of landslide event may be demonstrated. This paper described an application of infrared thermography. In order to perform interpretation of such analysis precisely, an index to analyze thermal infrared temperature was proposed. Qualitative relationship between stress state and deformation and thermal infrared temperature was established from experiments. According to this relationship, the failure process in the model was divided into three stages of development, with distinctive spatial-temporal characteristics of infrared radiation abnormalities. The test results revealed that the sources of the stabilizing force in each stage were quite different and thus evolutionary stage identification based on the thermal infrared temperature analysis was possible. This new method can be used for study of the deformation and failure mechanism of a landslide stabilized with piles.