ABSTRACT
Surveying is a measurement science which spatially relates points of interest for the use of, and interpretation by, third parties in their decision making processes.
In general, surveying is associated with the production of maps and plans which are a graphical record of what is existing at the time. When the survey is repeated at different time epochs an examination of changes and movement trends can be interpreted from the data sets, which in a geotechnical and deformation environment provides a powerful tool for the assessment of deformation movement and the design of remedial works.
The production of a reliable data set derived by survey techniques is of crucial importance to the development of an overall understanding of the deformation behaviour of a structure.
This paper will discuss the various survey techniques and equipment used by WBCM Surveys in their monitoring and surveillance activities. Which includes high precision conventional surveying instruments, Global Positioning Systems (GPS) equipment, inclinometers and close range photogrammetry all of which can be used to derive a reliable data set for the determination of deformation behaviour.
