Acquiringusefulandreliabledisplacementdatafromacomplexlandslidesiteisoftenaproblembecauseof large,localizedand scatterederosiveprocessesand deformations; the inaccessibility of thesite; the high costofinstru-mentationandmaintenance.
acquiringusefulandreliabledisplacementdatafromacomplexlandslidesiteisoftenaproblembecauseof大,localizedand scatterederosiveprocessesand deformations of the inaccessibility;场地;mentationandmaintenance costofinstru -高。