| A data set of a borehole inclinometer installed in a landslide is generally used to understand the briskness and finding the plane on the slip surface. However, some data sets reflect not only land mass movment but also deficient guide pipe installation, leading to wrong data interpretation. This study introduces the main cause of generation and the correction method of defective data from among “Insertion type borehole inclinometer measurement manual on the landslide ground” brought together based on the result of a joint research by Pubic Works Research Institute and three private companies that did aiming to prevent such defective data from 2008 to 2009. |