地じ盤ばん調ちょう査さMeaningsNoun1. subsurface exploration (geotechnical investigation)Kanji used地ground盤plate調tone査inspectComposed of地じ盤ばんground; crust (earth); bed (gravel, river, etc.); foundation (building, etc.); base; constituency; power base; support (electoral); footing; footholdNoun調ちょう査さinvestigation; examination; inquiry; enquiry; surveyNoun