Date:December 1, 2019
Location:at Ta Van village
Field investigation of a large-scale landslide at Ta Van village
We visited a large-scale landslide at Ta Van village (STOP2, 22.305°N, 103.8975°E), 9km from central SaPa town on the south-east.
We also made those investigation of surficial soil as follows at TestPoint1 and TestPoint2.
Additional field investigation of small-scale & fresh landslide at Ta Van village
We visited two small-scale, fresh landslides at Ta Van village, 250m from the Sa Pa antique engraved rocks museum on the south-east. Both have approximately 40m length and 15m width.
Small-scale, fresh landslide site #1 (left) and site #2 (right)
Site #2 is deeper and steeper than #1, and largely part of landslide mass was eroded.
Then we made a field investigation, simple topographic surveying of longitudinal section with laser gun, and took aerial photos by UAV.