CATO MANOR PIPELINE & ROAD PROTECTION

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Soil Veneer Applications

2021

BELLAIR ROAD - CATO MANOR, KZN - South Africa

DURBAN METRO

CATO MANOR PIPELINE & ROAD PROTECTION

Challenge

Heavy rains experienced during October 1999, caused the Umkubaan and Umbilo rivers that flow through Cato Manor to rise to abnormal levels. This resulted in excessive erosion and subsequent failure of the eastern embankment along the Bellair road, just north of the Umbilo river bridge. The rise in the water table beneath the road resulted in further instability of the embankment compromising the road and a bulk water pipeline.

Solution

Maccaferri Africa /African Gabions was asked to propose a structure that would retain the affected road embankment. The proposed structure was a combination of a gabion Mass Gravity wall, to a height of 6,5m, and a Terramesh™ System to a height of 2m. The total height of the structure was 8,5m, spanning a length of 52 linear metres with a foundation of 2,5m including a gabion key, which was sufficiently anchored into the river bed. A geotextile was used at all mesh/soil interfaces to act as a separation layer.

Used Products

加筋格宾
加筋格宾
马克菲尔 Terramesh® 系列包括用于建造机械稳定土 (MSE) 结构和加固土坡 (RSS) 的不同面层选项。 加筋格宾由双绞合金属网(网孔规格8X10)构成,可就地随时组装。面板及盖板是一块连续的网板,无需现场切割操作。 Terramesh® 装置由优质钢丝和聚合物涂层 (Polimac) View
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