...A survey to determine the difference in elevation between two points (height difference). Generally, leveling is broadly divided into direct leveling and indirect leveling depending on the measurement principle. Leveling is conducted to determine the elevation of land on land, and is also conducted in conjunction with various civil engineering works such as tunnels, roads, and rivers. It is also used as a means of investigating the amount of ground subsidence caused by pumping groundwater, and of investigating the amount of crustal movement for earthquake prediction. *Some of the terminology explanations that mention "level" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…2地点間の高さの差(比高)を求める測量。一般に,測定原理によって直接水準測量と間接水準測量に大別される。水準測量は,陸上部の土地の標高を求めるために行われるほかに,トンネル,道路,河川など各種土木工事に付随して実施される。また,地下水のくみ上げなどによる地盤の沈下量調査や地震予知のための地殻変動量調査の手段として用いられている。 ※「level」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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