Civil Engineering September 2015

 

No. Description of geotechnical works Unit Qty
1 200mm Shotcrete with Soil Nails in Restricted area. m2 1200
2 750mm Diameter Soldier Piles for Lateral Support. No 72
3 Reinforced Concrete Capping Beam. m3 95
4 Strand Anchors for ‘active system’ ­‐ West Elevation. No 125
5 Butress Piles ­‐ 1000mm for Lateral Support ­‐ NW corner. m2 450
6 200mm Shotcrete with Soil Nails in Restricted area. m2 1150
7 CFA Piling 8m ‐ 12m ­‐ 750mm; 900mm; 1000mm; 1100mm. Each 125
8 “Odex” Percussion Piles for ‘impenetrable’ boulder intrusion. Each 90
9 Bulk Earthworks and Removal of Soil. m3 65000
10 Removal of Boulders & Hard Rock. m3 5500

VIEW THE SEPTEMBER ISSUE OF CIVIL ENGINEERING

Mega Pile is currently in the final stages of a challenging R28 million, Lateral Support and Piling project at No. 161 Rivonia Road in Sandton.

The lateral support and piling design were undertaken by Southern Geotechnical Engineering. The Site is bordered by the Sinosteel Plaza (south) and The Emperor development (west), each with its own basement structures. The design of the lateral support system was especially challenging due to the size of the planned super basement and its relative closeness to the surrounding Sinosteel and The Emperor basement structures. To complicate matters further, landowners to the north and south of the new development initially withheld permissions for any lateral support elements to cross their boundary lines.