When and Why You Need Monitoring Surveys?
A monitoring survey is a survey taken in order to determine whether and how the construction of a structure or a building has moved over a certain period of time. Surveyors utilize a variety of techniques and various types of equipment to carry out a monitoring survey properly.
Why are Monitoring Surveys Useful?
In most cases, if a structural engineer determines it, a monitoring survey is carried out to determine if a structure is at risk of moving. It would also be a good idea to carry one out if some heavy construction work is being done close to a building which may involve basement excavation, any kind of demolition, or piling. Of course, all while prioritizing land surveying safety.
A monitoring survey will help determine any types of further movements in the case of a structural collapse. Checking for movements is much less expensive than having to do any type of reconstruction, making it wise to do these types of surveys from time to time. Not to mention that these types of surveys could prevent potential loss of lives or injuries from happening due to a structure moving or tilting too far.
How Often Does Property Need to be Monitored?
Generally speaking, it is important to have at least one survey before undertaking any work. It ensures you have a base reading against which any further readings can be compared to. If a survey is conducted after some work has been already done, then one might miss any initial movements in the structure.
However, when it comes to some major operations that involve underpinning, digging, concrete pours, etc., then weekly surveys are recommended until everything is complete. After heavy work and construction are complete, the surveys can be changed to a monthly schedule before the internal work begins. Once the internal fitting has started, movements are limited so surveys can cease entirely.
It is best to determine the frequency of surveys with the project manager as some projects may require more frequent surveys compared to others.
