Before & After: Slope Stabilization in Albania
As part of the rehabilitation works for access road 411 (in the Çorovoda region), TAP successfully stabilized a slope affected by landslides.
The team conducted an initial investigation of the slope in November 2015, in conjunction with the start of the excavation works of the access road. Geologists detected an existing sliding surface on the top part of the slope. A second investigation of the slope took place in January 2016 after the winter rains.
The team further assessed the issue to identify the most suitable solution. In the end, the technical resolution proposed by TAP was successfully implemented by the access roads and bridges rehabilitation contractor:
- An open drainage channel was excavated above and all around the sliding area to divert surface water.
- The upper part of the slope, the second slope (15m height), was excavated with an inclination of 33°, the surface was compacted to avoid superficial erosion.
- The lower part of the slope, the first slope (9m height), was excavated with an inclination of 45°, the surface was stabilized by applying slope support with soil nails up to 12m in length with a pattern of 2,0m x 2,0m, double wire mesh and shotcrete of 15cm thick.
TAP started the rehabilitation of access roads and bridges Albania in the 2015 summer. This will allow heavy machinery and equipment, including a 60 tonne pipe-bending machine and over a thousand 18-metre pipes weighing up to 16 tonnes, to gain safe access to remote areas along the pipeline route.