KL-Karak Highway Widening Using Anchored Earth Wall
Authority : Malaysia Highway Authority
Client : MTD Prime Sdn Bhd
Consultant : Terratech Consultants Sdn. Bhd.
Completion : November 1995

In order to cope with increasing traffic intensity, road widening becomes an integral part of upgrading the Kuala Lumpur-Karak Highway. The road widening project requires that in some stretches where the boundary constraints do not permit construction of side slopes, earth retaining structures will be constructed in order to maintain the required width along the highway and yet ensuring stability to the structure.

The selection of types of retaining structures was based most importantly on economic viability and stability of the structure. In addition, ease of construction, mobilisation and construction rate were other important criteria considered to minimise disruption of passing traffic.

The above key criteria were complied with by the construction of Anchored Earth retaining wall. Due to easy mobilisation and speed of construction, significant economic advantage was achieved compared to conventional reinforced concrete wall. The wall was constructed to a maximum height of 6.75m above a gentle slope and was completed within schedule to minimise traffic flow disruption. To further enhance the stability of the wall, drainage blankets were installed behind and below the anchored zone to expedite the drainage of ground water.


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