Monday, March 14, 2011
LOCATING MISSING MANHOLE FOR MAXIS - GOPENG
We have been tasked by Maxis to locate their missing manhole at Gopeng area early this year. Two devices used; Radio Detection and Metal Detector. Finally we found the missing manhole, buried about 1.2 meter underground!
Photo 1 : Insert the flexitrace into the sub-duct
Photo 2 : Ensure the flexitrace inserted into spare duct
Photo 3 : Activate and calibrate the transmitter
Photo 4 : Detect the flexitrace route using the receiver unit
Photo 5 : Dig pilot hole using backhoe (to reduce time)
Photo 6 : Manually excavate to double check other utilities
Photo 7 : Finally found the manhole buried underground
Photo 8 : Found manhole cover buried about 1.2meter underground. Strange??