In order to respond to the growing needs of the company’s different business units, the First Balfour Geotechnical Engineering Services Unit recently purchased two (2) fully-automated drilling rigs manufactured by British company Dando Drilling International, the first of its kind to be shipped and operated in Asia and the first brand to be operated in the Philippines.
Investigation of subsurface conditions in a particular site is a prerequisite to the design of any structure. Drilling rigs can sample subsurface mineral deposits, and test rock, soil, and groundwater physical properties. Standard penetration tests (SPT) are subsequently conducted to provide information on the geotechnical engineering properties of soil. Before issuing building permits, building officials normally require these data along with the recommendations of a qualified geotechnical consultant.
The Dando Dual Mast Terrier offers rotary and percussive drilling methods from two masts mounted side by side on the same small rig. It can perform an SPT to a depth of approximately 20 meters or take cores of bedrock at depths up to 50 meters. Instead of the conventional drilling technique which employs a tripod and skid-type drilling machine that takes time and requires more personnel to assemble and transfer, this automated machine offers faster and more powerful capabilities. As it is lightweight and has a low height clearance requirement, the compact and extremely versatile rig is designed to be easily transportable and simple to maneuver through tight spaces with difficult access and is even ideal for ideal for slopes and remote places. Personnel safety is also a key advantage as its security features is at par with current top-of-the-line units.
This new capital equipment acquisition is a key towards enhancing First Balfour’s capability to deliver projects that require an in-depth and efficient geotechnical soil investigation.