|
Deformation monitoring (also referred to as deformation survey) is the systematic measurement and tracking of the alteration in the shape or dimensions of an object as a result of stresses induced by applied loads. Deformation monitoring is a major component of logging measured values that may be used to for further computation, deformation analysis, predictive maintenance and alarming.〔Literature, Edited by J.F.A Moore (1992). ''Monitoring Building Structures''. Blackie and Son Ltd. ISBN 0-216-93141-X, USA and Canada ISBN 0-442-31333-0〕 Deformation monitoring is primarily related to the field of applied surveying, but may be also related to the civil engineering, mechanical engineering, plant construction, soil and rock stability mechanics. The causes for deformation monitoring are changes in the bedrock, increase or decrease of weight, changes of the material properties or outside influences. The measuring devices used for deformation monitoring depend on the application, the chosen method and the required regularity. == Measuring devices == Measuring devices (or sensors) can be sorted in two main groups, geodetic and geotechnical sensors. Both measuring devices can be seamlessly combined in modern deformation monitoring. *Geodetic measuring devices measure georeferenced displacements or movements in one, two or three dimensions. It includes the use of instruments such as total stations, levels and global navigation satellite system receivers. *Geotechnical measuring devices measure non-georeferenced displacements or movements and related environmental effects or conditions. It includes the use of instruments such as wireline extensometers, piezometers, rain gauges, thermometers, barometers, tilt meters, accelerometers, seismometers etc. *Other techniques e.g. radar measuring devices. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Deformation monitoring」の詳細全文を読む スポンサード リンク
|