Construction sea defence wall East Dike on Chinese peninsula
The construction of the East Dike on the Dapeng Peninsula, near Shenzhen in China is progressing rapidly. This report urban design firm KCAP and Felixx landscape architects that developed the plan for the flood wall after typhoon Mangkhut damaged the 130 km long coast line of the peninsula to various degrees. KCAP based its design on a ‘Triple levee strategy’.
First contours emerging
In order to ensure protection against storm surges in the near future, hard work has been done on site on the realisation of the primary flood defence wall.
Only half a year after winning the design competition by KCAP + Felixx and in less than three months of construction work, the raw construction of the sea wall of the demonstration zone has already been completed.
In 2019 urban design firms KCAP + Felixx won the international competition for the redevelopment of the 130-kilometer coastline of Dapeng, the green peninsula in the bay between Hong Kong and Shenzhen.
The flood defence scheme comprizes three zones, each responding differently to storm surges.
The first ‘outer’ levee zone increases the resiliency through wave attenuation, erosion reduction and the enhancement of sedimentation.
The second ‘middle’ levee is an elevated embankment, to stop the storm surge and the water pushed up by the waves. It’s not a big wall but it creates a multifunctional zone with a hilly park and an elevated waterfront with urban promenades.
The third ‘inner’ levee is a hybrid structure which manages the rainwater from the inner land. This zone is designed according to the principle of a sponge city.
Supervision of progress
Team KCAP-Felixx is supervising the construction process on six locations together with the client, the Water resource bureau of Shenzhen Municipality.
Recently the six locations were presented to the representative committee of the Shenzhen People's Congress and Shenzhen Ocean Bureau.
Further development of the project after the competition phase took place in close cooperation with the China Resource Group, Hope Landscape & Architecture, China Water Transport Planning & Design Institute and Deltares.
Realization is expected to be completed in 2021.