informationwill be used as a basis of forthcoming surveys and construction. Installation of monuments is briefly specified as follows:
- Monument having dimensions of 120mm (w) x120mm (w) x 600mm (h) shall be installed by using optionally pre-cast concrete or in-situ concrete. In case pre-cast is selected, it shall be firmly embedded into base concrete.
- Monument shall be installed on a firm sub-base material and located away from possible origin of disturbance such as traffic, blasting and equipment operation.
- The location of monument shall also be flat to facilitate setting up surveying instrument and free of obstructions blocking collimation.
- In plant area, the monument shall be located some distance away from the plant compound ensuring that the candidate location would be preserved over sufficiently long period.