The Monitoring of Construction Movement

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Monitoring during construction is an essential aspect of any construction project, as it plays a crucial role in ensuring the safety and stability of both the structure and the surrounding environment, both during and after construction. Depending on the type of monitoring required and the specific needs of the project, there are a variety of monitoring solutions that can be implemented to ensure any issues are dealt with and then able to be resolved.

Even this well-known Tower is monitored still for its movement.

(The leaning Tower of Pisa (left))

Vibration Monitoring

Vibration monitoring in construction involves the use of vibration sensors to measure the vibration levels generated during construction activities such as drilling, demolition, and excavation. The monitoring is typically done to ensure that the vibration levels do not exceed the allowable limits that could cause damage to nearby buildings or structures. Vibration monitoring can also help in identifying the cause of any damage that may occur, as well as in developing measures to mitigate the impact of vibration on nearby structures.

(Vibration monitor installed on basement structure)

Structural Monitoring

Structural monitoring solutions are often project specific and amended to the site conditions, structures that are required to be monitored and budget / timeframe of the client. Often the solution will require either (or both) a traditional monitoring solution or the use of newer technology solutions such as Triaxial tilt sensors.

Traditional (Optical) monitoring in construction involves the use of survey total stations and control points (prisms, reflective stickers, Screws) measured frequently to track any changes in the baseline readings on the structure. Applications for traditional monitoring include, Building Retention systems, Structure monitoring of adjoining properties/structures deemed to be within the area of influence.

(Fixed L Bar Prism and Retro Sticker often used for Optical monitoring)

Triaxial tilt sensor nodes provide real-time data on the structural tilt and movement for structures that require a higher frequency of monitoring. These sensors consist of three accelerometers that measure the tilt in three directions and provide data on the movement and deformation of the structure. The data collected by the sensors is wirelessly transmitted to a central monitoring system, where it is analyzed to detect any potential structural problems or changes in the structure’s position and real-time alerts to the site personnel.

(Tilt Sensor installed on rail sleeper)

Effective monitoring is a crucial component of any construction project to ensure that surrounding structures and the environment are not adversely impacted, and that the foundation and structure of surrounding buildings and infrastructure remain stable, without excessive changes in position, deformation, or alignment. While the monitoring plan or recommendations are typically prepared by a Geotechnical Engineer, B+B works closely with clients and a vast network of suppliers in a collaborative approach to provide an optimal solution for each project’s unique requirements.

Please contact Chris Dawson via (07) 5631 8000 if you would like to know more.

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