The Challenge

The underground tunnel at one of Malaysia’s skyscrapers needs around 50 cored openings for utility upgrading works. Located in a confined and crucial space where a small mistake can lead to huge setback, the client would like to ensure the conditions of a 8m² DUT wall and 12m² abutment wall to pinpoint the safe coring zones for the tunnel.

Our Approach & Result

We conducted a structural assessment with Xradar™ enhanced concrete scanning technology to give a full detailed report including the thickness of the walls, the spacing and sizes of the embedded items. The confined space underground was not a hinder to our team as the machine is small and portable, completing the assessment within less than 2 hours. Then, proceeded with the ~50 core openings for utilities of the underground tunnel.

The current construction of an underground tunnel at one of Malaysia’s skyscrapers is almost completed. The next step for them to proceed is the installation of utilities that would need 52 coring works for an opening.

Before proceeding, the client wanted to safeguard the structural integrity of the underground tunnel as a small mishap could lead to unwarranted expenses. To curb this, structural assessment of a 1.4m × 2m and a 6m × 2m wall needs to be conducted before coring.

With Xradar™ enhanced concrete scanning technology, we scanned the whole area to get the full information of the location, spacing, sizes and other details of the reinforcements along with the thickness of the wall. The small and portable size of the concrete scanning technology, the assessment only took less than 2 hours.

After reviewing the full report a week after the scanning work, we came back to proceed with the core opening for the utility installation. It was a total of 52 points done with clear vision from the structural assessment. Our diamond concrete coring machines are also small and portable allowing the work in the confined underground tunnel with no hassle or headache.