GLASGOW SCHOOL OF ART
Sigma Surveys was approached by Sir Robert McAlpine (SRM) to tender for the precise monitoring project for the demolition and construction of a new building at the Glasgow School of Art. The specification – written by Arup – requested that prisms, ground studs and BRE sockets were to be installed in specific locations around the perimeter of the site.
The tolerance for accuracy within the specification was +/-0.5mm, therefore we used our Trimble S8 (0.5s) high precision total station to survey the prisms and ground studs. Our Trimble DiNi (+/-0.3mm) digital level was used to survey the BRE sockets. Both surveying instruments produced results within the tolerance that had been stipulated. The monitoring was requested over a 46 week period, initially once a week increasing to 6 days a week through the main construction period. The contract eventually lasted for over a year with a final set of readings at 6 month intervals for a further 12 months.
We were also asked to monitor various piles around the site using Geokon Inclinometer equipment. Using a probe to a depth of 20m, we could accurately monitor movement deep within the pile and display on a graph any movement from day to day readings.
GLASGOW SCHOOL OF ART
Sigma Surveys was approached by Sir Robert McAlpine (SRM) to tender for the precise monitoring project for the demolition and construction of a new building at the Glasgow School of Art. The specification – written by Arup – requested that prisms, ground studs and BRE sockets were to be installed in specific locations around the perimeter of the site.
The tolerance for accuracy within the specification was +/-0.5mm, therefore we used our Trimble S8 (0.5s) high precision total station to survey the prisms and ground studs. Our Trimble DiNi (+/-0.3mm) digital level was used to survey the BRE sockets. Both surveying instruments produced results within the tolerance that had been stipulated. The monitoring was requested over a 46 week period, initially once a week increasing to 6 days a week through the main construction period. The contract eventually lasted for over a year with a final set of readings at 6 month intervals for a further 12 months.
We were also asked to monitor various piles around the site using Geokon Inclinometer equipment. Using a probe to a depth of 20m, we could accurately monitor movement deep within the pile and display on a graph any movement from day to day readings.
